CN220536370U - Paper card lining structure and packing box - Google Patents

Abstract

The application discloses paper card lining structure and packing carton, paper card lining structure includes the folding unit of constituteing by supporting part and buffer, and the supporting part is along the periodic folding of first direction, and buffer stacks in supporting part wherein one side along the second direction of perpendicular to first direction, and wherein, buffer is including supporting frame and bolster, supports the frame and connects in supporting part wherein one end, and self-supporting portion is buckled the coiling through the multistage and is limited out the buffering space, and the bolster is located the buffering space and is periodically folded in the second direction. Through setting up supporting part, supporting frame and bolster three mutually supporting for paper card lining structure has good cushioning properties, and also has good structural strength in the second direction, can provide powerful support for the product, when paper card lining structure is applied to in the packing carton, can support the product, prevents that the product from moving at will in the packing carton.

Description

Paper card lining structure and packing box

Technical Field

The application relates to the technical field of product packaging, in particular to a paper card lining structure and a packaging box.

Background

In packaging products, the lining structures often used are made of foam materials or made of a plurality of paper boards by sticking. The foam material can not be recycled or degraded, and can release toxic gas when being burnt, so that the pollution to the environment is serious; the paper card lining needs to play a role in buffering and supporting in the thickness direction by virtue of the paper board of the paper card lining, has lower buffering performance, needs to be adhered with a plurality of paper boards, is not easy to assemble and needs additional adhesive materials.

Disclosure of Invention

The embodiment of the application provides a paper card lining structure and packing carton, can solve the lower problem of paper card lining buffer performance.

In a first aspect, embodiments of the present application provide a paper card liner structure, including:

a support portion which is periodically folded in a first direction; and

A buffer part stacked on one side of the support part in a second direction perpendicular to the first direction; wherein the buffer part comprises a supporting outer frame and a buffer piece; the supporting outer frame is connected to one end of the supporting part, and a buffer space is defined by bending and winding the supporting part in multiple sections; the buffer piece is arranged in the buffer space and is periodically folded in the second direction, one end of the buffer piece is connected with the support outer frame in the second direction, and the other end of the buffer piece is contacted with the support outer frame.

In some embodiments, the paper card lining structure includes two folding units, the two folding units are axisymmetrically arranged on an axial plane perpendicular to the first direction, and the supporting parts of the two folding units are connected.

In some of these embodiments, the support comprises:

a plurality of sub-supports, each of which comprises two side walls and a connecting wall connected between the two side walls, wherein the two side walls are positioned on the same side of the connecting wall;

the bottom walls are arranged between two adjacent sub-supporting pieces, and are connected to one end of the side wall, which is far away from the connecting wall; the bottom walls are contacted with the supporting outer frame.

In some embodiments, in the first direction, any two adjacent side walls are spaced apart; and/or the connecting walls are flat, and a plurality of the connecting walls are positioned on a first plane, and the first plane is parallel to the first direction; the bottom wall is in a flat plate shape, and a plurality of the bottom walls are positioned on a second plane which is parallel to the first plane.

In some embodiments, the support frame comprises a first side plate, a first paper plate, a second side plate and a second paper plate which are sequentially connected, wherein the first side plate is connected to the support part; the first side plate is parallel to the second side plate and perpendicular to the first direction, and the first paperboard is parallel to the second paperboard and perpendicular to the second direction so as to define the buffer space; in the second direction, the cushioning member is in contact with the first sheet and the second sheet, respectively.

In some embodiments, the support frame further comprises a third side plate, the third side plate is connected to an end of the second cardboard away from the second side plate, the third side plate is parallel to the first side plate and is attached to the first side plate, and an end of the third side plate away from the second cardboard is in contact with the first cardboard.

In some embodiments the cushioning member is attached to an end of the third side panel remote from the second paperboard; or, the support frame further comprises a third paperboard, the third paperboard is connected to one end, far away from the second paperboard, of the third side plate, the third paperboard is parallel to the first paperboard and is attached to the first paperboard, and the buffer piece is connected to one end, far away from the third side plate, of the third paperboard.

In some embodiments the cushioning member is attached to an end of the second paperboard remote from the second side panel.

In some of these embodiments, the buffer comprises at least one sub-buffer unit comprising a plurality of inclined plates at an angle to the second direction;

the inclined plates are sequentially connected end to end; or, the sub buffer unit includes a plurality of vertical plates, which are parallel to the second direction; one vertical plate is arranged between two adjacent inclined plates, and the two adjacent inclined plates are connected with the vertical plate on the same side of the same vertical plate.

In some embodiments, the buffer part has one of the sub buffer units, and in the second direction, the sub buffer units are spaced apart from the support frame; or, the buffer part is provided with a plurality of sub buffer units, the buffer part further comprises at least one transition section, one transition section is arranged between two adjacent sub buffer units, the two adjacent sub buffer units are connected with the transition section on the same side of the transition section, and the transition section is attached to the support outer frame.

In some of these embodiments, the support portion is integrally formed with the cushioning portion.

In a second aspect, an embodiment of the present application provides a packaging box, including a housing and a paper card liner structure as described above, where the paper card liner structure is disposed in the accommodating cavity.

Based on paper card lining structure and packing carton of this application embodiment, can stretch out and draw back in the second direction through setting up at the periodically folding bolster of second direction, can take place to crooked in the second direction at the periodically folding supporting part of first direction to can reset under the support frame of buffering part and the support of bolster, thereby make whole paper card lining structure have good cushioning properties, can provide good protection to the product. Wherein, combine supporting part, support frame and bolster three for this application's paper card lining structure also has good structural strength in the second direction, can provide powerful support for the product, when paper card lining structure is applied to in the packing carton, can support the product, prevents that the product from moving at will in the packing carton.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a paper card liner structure according to an embodiment of the present disclosure;

FIG. 2 is a schematic front view of a paper card liner according to an embodiment of the present disclosure;

FIG. 3 is a schematic front view of a paper card liner structure with only one folding unit according to one embodiment of the present application;

FIG. 4 is a schematic front view of a supporting frame according to an embodiment of the present disclosure;

FIG. 5 is a schematic front view of a buffer portion of a support frame according to an embodiment of the present disclosure;

FIG. 6 is a schematic front view of a buffer portion of the support frame according to an embodiment of the present disclosure;

FIG. 7 is a schematic front view of a buffer portion of an embodiment of the present application, wherein one end of the buffer portion is connected to a first side plate;

FIG. 8 is a schematic front view of a buffer portion of an embodiment of the present application, wherein one end of the buffer portion is connected to a second cardboard;

FIG. 9 is a schematic front view of a buffering portion of a sub-buffering unit according to an embodiment of the present application;

FIG. 10 is a schematic front view of a buffer portion including two sub-buffer units according to an embodiment of the present application;

fig. 11 is a schematic front view of a buffer portion including three sub-buffer units according to an embodiment of the present application.

Reference numerals:

10. a paper card lining structure; 11a, a buffer space; 101. a folding unit;

11. a support part; 111. a sub-support; 111a, sidewalls; 111b, connecting walls; 112. a bottom wall; 1111. a first surface;

12. a buffer section; 121. a supporting outer frame; 1211. a first side plate; 1212. a first paperboard; 1213. a second side plate; 1214. a second paperboard; 1215. a third side plate; 1216. a third paperboard; 122. a buffer member; 1221. a sub buffer unit; 122a, a sloping plate; 122b, a riser; 1222. a transition section;

13. an axial plane; 14. a first plane; 15. a second plane;

t, a first direction; H. a second direction; and a third direction S.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In packaging products, the lining structures that are generally used are usually made of foam or made of a plurality of cardboard sheets. The use of foam material can cause serious pollution to the environment, and the paper card lining needs to play a role in buffering and supporting in the thickness direction by virtue of the paperboard of the paper card lining, so that the buffering performance is lower, a plurality of paperboards need to be adhered, and the paper card lining is not easy to assemble and needs additional adhesive materials. Therefore, when the paper card lining is arranged, the paper card lining is difficult to design, has good buffering performance, and is difficult to meet the requirements of buffering, environmental protection and the like of the paper card lining. In order to solve the technical problem, the application provides a paper card lining structure and a packaging box.

Referring to fig. 1 to 2, a schematic structural diagram of a paper card lining structure 10 according to an embodiment of the present application is shown, and the paper card lining structure 10 is used for being placed in a containing cavity inside a packaging box and contacting with a product to provide a support for the product, so as to prevent the product from being knocked during random movement inside the packaging box.

The paper card liner structure 10 includes a folding unit 101, and the folding unit 101 includes a supporting portion 11 and a cushioning portion 12. The supporting portion 11 is periodically folded in a first direction T, and the buffer portion 12 is stacked on one side of the supporting portion 11 in a second direction H perpendicular to the first direction T. The supporting portion 11 is a portion of the paper card lining structure 10 for supporting a product or contacting with the product, wherein the supporting portion 11 provides support for the product in the second direction H, and the buffer portion 12 is used for providing support for the supporting portion 11 and has buffer performance in the second direction H, so that the paper card lining structure 10 of the present application has good support and buffer performance, and provides better protection for the product.

The buffer portion 12 includes a support frame 121, as shown in fig. 2, the support frame 121 is connected to one end of the support portion 11, and the support frame 121 is wound from the support portion 11 through a plurality of sections of bending to define a buffer space 11a, when the paper card liner structure 10 is impacted, the support portion 11 can move to contact with the support frame 121, and the support frame 121 can provide support for the support portion 11, so that the support portion 11 which is periodically folded is prevented from having an excessive moving range.

The buffer portion 12 further includes a buffer member 122, and the buffer member 122 is disposed in the buffer space 11a and is periodically folded in the second direction H. When the paper card lining structure 10 is impacted, the supporting part 11 which is periodically folded in the first direction T can be bent in the second direction H, and the buffer piece 122 which is periodically folded in the second direction H can be stretched in the second direction H to provide a space for the supporting part 11 to move and can act on the supporting part 11 to reset, so that the whole paper card lining structure 10 has good buffer performance and can provide good protection for products.

In addition, the supporting part 11 which is periodically folded in the first direction T, the supporting outer frame 121 which is wound in a multi-section bending manner, and the buffer member 122 which is periodically folded in the second direction H are combined, so that the paper card lining structure 10 of the present application can also have good structural strength in the second direction H, and provide powerful support for the product, and when the paper card lining structure 10 is applied in the packaging box, the product can be supported, and the product is prevented from moving randomly in the packaging box.

The paper card lining structure 10 of the embodiment of the present application is integrally formed, that is, the supporting portion 11 and the buffer portion 12 are integrally formed, and the supporting outer frame 121 and the buffer member 122 are integrally formed. For example, a piece of cardboard is used, and the cardboard is folded according to the preset folding line on the cardboard, so that the supporting portion 11 and the buffer portion 12 are folded, wherein the card liner structure 10 may be folded according to the sequence of the supporting portion 11, the supporting outer frame 121 and the buffer member 122, or the card liner structure 10 may be folded according to the sequence of the buffer member 122, the supporting outer frame 121 and the supporting portion 11. The predetermined fold line may comprise a seam line or a solid line drawn on the surface of the cardboard.

As shown in fig. 2, the paper card lining structure 10 includes two folding units 101, the two folding units 101 are axisymmetrically arranged with an axial plane 13 perpendicular to the first direction T, and the supporting portions 11 of the two folding units 101 are connected, and the two supporting portions 11 of the two folding units 101 are both used for contacting with a product, so that the contact area between the supporting portions 11 and the supporting outer frame 121 is larger, and the supporting effect is better.

In other embodiments, as shown in fig. 3, the paper card lining structure 10 may also include a folding unit 101, wherein one end of the supporting portion 11 is connected to the supporting frame 121, and the supporting portion 11 is periodically folded in the first direction T from the connection, and the other end of the supporting portion 11 is contacted with the other side of the supporting frame 121, and the supporting frame 121 can provide supporting protection for the whole supporting portion 11 at one side of the supporting portion 11, so that the supporting portion 11 can provide stable support for the product. In the embodiment of the present application, the number of the folding units 101 of the paper card liner structure 10 is not limited, and may be specifically selected according to actual requirements.

As shown in fig. 2 and 3, the supporting portion 11 includes a plurality of sub-supporting members 111 and a plurality of bottom walls 112, each sub-supporting member 111 includes two side walls 111a, a connecting wall 111b connected between the two side walls 111a, the two side walls 111a are located on the same side of the connecting wall 111b, one bottom wall 112 is disposed between two adjacent sub-supporting members 111, and the bottom wall 112 is connected to an end of the side wall 111a away from the connecting wall 111 b. The connecting wall 111b is used for contacting with the product, and the bottom wall 112 can contact with the supporting outer frame 121 of the buffer portion 12.

As shown in fig. 2, when the number of the folding units 101 is two, the two folding units 101 are connected by one bottom wall 112, and the axial plane 13 is a plane passing through the midpoint of the bottom wall 112 and perpendicular to the first direction T; alternatively, the two folding units 101 are connected by one connecting wall 111b, and the axial plane 13 is a plane passing through the midpoint of the connecting wall 111b and perpendicular to the first direction T.

Alternatively, the side wall 111a is flat plate-shaped perpendicular to the first direction T, and the flat plate-shaped side wall 111a has good supporting structural strength. Further, the bottom wall 112 and the connecting wall 111b are respectively flat plates perpendicular to the side wall 111a, that is, the bottom wall 112 and the connecting wall 111b are perpendicular to the second direction H, which helps to improve the supporting stability of the product.

In the first direction T, any two adjacent side walls 111a are disposed at intervals, so that when the supporting portion 11 is impacted to bend in the second direction H, the supporting portion 11 has a deformation space, and the internal structure of the supporting portion 11 is prevented from being deformed irreversibly by extrusion. In addition, the two adjacent side walls 111a are arranged at intervals, so that the product can also extend between the two adjacent side walls 111a, and the paper card lining structure 10 can provide support for the special-shaped product.

Optionally, in the first direction T, the spacing between any two adjacent side walls 111a is equal, and by setting the spacing between the side walls 111a, the bearing requirements of products with different sizes can be satisfied. For example, for a regularly shaped product, it may be directly supported against the connecting wall 111b of the support 11, or placed directly in the gap between two adjacent side walls 111 a; for irregularly shaped products, one part of the product can be supported against the connecting wall 111b of the support 11 and the other part can extend into the gap between two adjacent side walls 111 a. Therefore, the paper card lining structure 10 can provide support for products with various different specifications and different shapes, and has high applicability. In other embodiments, the spacing between any two adjacent side walls 111a may be different in the first direction T, or the two adjacent side walls 111a may be disposed in a fitting manner. In this embodiment, the distance between two adjacent side walls 111a is not limited, and may be specifically selected according to the weight, shape and size of the product.

Optionally, when the connecting wall 111b is in a flat plate shape, the plurality of connecting walls 111b are disposed at intervals on the first plane 14 parallel to the first direction T, and the surfaces of the plurality of connecting walls 111b for contacting with the product are all located on the first plane 14, for example, the product with a smooth surface is placed on the supporting portion 11, and the surface of the product and the connecting wall 111b located on the same surface can be fully contacted, so that the contact area and the stress area are increased, and the supporting effect of the supporting portion 11 is better.

In other embodiments, the surfaces of the plurality of connecting walls 111b for contacting the product may not be in the same plane for the shaped product to rest on. For example, the connection wall 111b has a first surface 1111 for contact with a product, a distance a1 from the first surface 1111 of the connection wall 111b located in the middle area to the buffer 12 in the second direction H in the first direction T, a distance a2 from the first surface 1111 of the connection wall 111b located in the edge area to the buffer 12 in the second direction H, a1< a2, the convex portion of the shaped product may be abutted against the first surface 1111 of the connection wall 111b in the middle area, and the flat portion of the shaped product may be abutted against the first surface 1111 of the connection wall 111b in the edge area.

When the bottom wall 112 is flat, the bottom walls 112 are located on the second plane 15, and the second plane 15 is parallel to the first plane 14, so that the widths of the side walls 111a in the second direction H are equal, the structural strength of the side walls 111a in the second direction H is the same, the supporting strength of the whole supporting portion 11 is uniform, and the product is not required to be limited by the structure of the product when being placed, so that the product is placed in the supporting portion 11 in a more free posture.

The bottom walls 112 of the supporting portion 11 are attached to the supporting outer frame 121, and the supporting outer frame 121 can provide a more stable support for the supporting portion 11 in the second direction H, so that the supporting portion is prevented from moving randomly. In addition, the bottom wall 112 is attached to the support frame 121, and when the support portion 11 and the support frame 121 are deformed by an impact force, the support portion 11 and the support frame 121 can move more freely, so that the two are prevented from being pulled mutually to cause irreversible damage to each other when being deformed.

As shown in fig. 4 and 5, the support frame 121 includes a first side plate 1211, a first cardboard 1212, a second side plate 1213, and a second cardboard 1214. The first side plate 1211 is parallel to the second side plate 1213 and perpendicular to the first direction T, and the first cardboard 1212 is parallel to the second cardboard 1214 and perpendicular to the second direction H to define the buffer space 11a. The second cardboard 1214 is capable of contacting the bottom wall 112 of the support portion 11 for providing support for the support portion 11.

As shown in fig. 4, the supporting frame 121 may be folded and wound along a predetermined direction to define the buffer space 11a, and specifically, the supporting frame 121 includes a first side plate 1211, a first paper plate 1212, a second side plate 1213, and a second paper plate 1214 that are sequentially connected, where the first side plate 1211 is connected to the supporting portion 11; alternatively, as shown in fig. 5, the support frame 121 may be folded and wound in a direction opposite to the preset direction to define the buffer space 11a, and in particular, the support frame 121 includes a second cardboard 1214, a second side plate 1213, a first cardboard 1212, and a first side plate 1211 connected in sequence, and the second cardboard 1214 is connected to the support portion 11.

When the support frame 121 includes the first side plate 1211, the first cardboard 1212, the second side plate 1213, and the second cardboard 1214 connected in sequence, an end of the second cardboard 1214 remote from the second side plate 1213 may be directly connected to the buffer 122; alternatively, the support frame 121 further includes a third side plate 1215, and the third side plate 1215 is connected to an end of the second cardboard 1214 away from the second side plate 1213.

The third side plate 1215 is parallel to the first side plate 1211, and an end of the third side plate 1215 away from the second paper plate 1214 contacts the first paper plate 1212, and the third side plate 1215 can provide support for the second paper plate 1214, so as to improve the cushioning performance of the cushioning portion 12. Further, the third side plate 1215 is attached to the first side plate 1211, further increasing the support stability of the third side plate 1215.

When the support frame 121 includes the third side plate 1215, an end of the third side plate 1215 remote from the second cardboard 1214 may be directly connected to the buffer 122; alternatively, the support frame 121 further includes a third cardboard 1216, the third cardboard 1216 is connected to an end of the third side plate 1215 away from the second cardboard 1214, the third cardboard 1216 is parallel to the first cardboard 1212 and is attached to the first cardboard 1212, and the third cardboard 1216 extends along the first direction T, and an end of the third cardboard 1216 away from the third side plate 1215 is connected to the buffer 122, such that the buffer 122 is located in a middle area of the buffer space 11a.

As shown in fig. 6 to 11, the buffer 122 has at least one sub-buffer unit 1221, and the sub-buffer unit 1221 includes a plurality of inclined plates 122a forming an angle with the second direction H, and the angle between the inclined plates 122a is greater than 0 degrees and less than 90 degrees.

Alternatively, as shown in fig. 6 to 8, the plurality of inclined plates 122a are connected end to end in sequence, or, as shown in fig. 9, the sub-buffer unit 1221 further includes a plurality of vertical plates 122b, the vertical plates 122b are parallel to the second direction H, one vertical plate 122b is disposed between two adjacent inclined plates 122a, and two adjacent inclined plates 122a are connected to the vertical plate 122b on the same side of the same vertical plate 122b; further, the plurality of vertical plates 122b are separately disposed on two planes parallel to the second direction H, and two adjacent vertical plates 122b on the same plane are contacted to provide the supporting force in the second direction H. The plurality of vertical plates 122b are in contact with or spaced apart from the corresponding first side plate 1211 or second side plate 1213.

Optionally, as shown in fig. 5, the buffer member 122 has a sub buffer unit 1221, and the supporting frame 121 includes a second cardboard 1214, a second side plate 1213, a first cardboard 1212, a first side plate 1211, and a third cardboard 1216 connected in sequence, where one end of the second cardboard 1214 away from the second side plate 1213 is connected to the supporting portion 11, and the sub buffer unit 1221 is periodically folded from the third cardboard 1216 in the second direction H to abut, adhere or clamp with the first cardboard 1212.

As shown in fig. 6, the buffer member 122 has a sub-buffer unit 1221, the supporting frame 121 includes a first side plate 1211, a first plate 1212, a second plate 1213, a second plate 1214, a third plate 1215, and a third plate 1216 sequentially connected, one end of the sub-buffer unit 1221 is connected to one end of the third plate 1216 away from the third plate 1215, and the sub-buffer unit 1221 is periodically folded from the third plate 1216 in the second direction H to abut, adhere or clamp with the second plate 1214.

Alternatively, as shown in fig. 7, the buffer member 122 has a sub-buffer unit 1221, the supporting frame 121 includes a first side plate 1211, a first plate 1212, a second plate 1213, a second plate 1214, and a third plate 1215 connected in sequence, one end of the sub-buffer unit 1221 is connected to one end of the third plate 1215 away from the second plate 1214, and the sub-buffer unit 1221 is periodically folded from the third plate 1215 in the second direction H to abut, adhere or clamp with the second plate 1214.

Alternatively, as shown in fig. 8, the buffer member 122 has a sub buffer unit 1221, the supporting frame 121 includes a first side plate 1211, a first paper plate 1212, a second side plate 1213, and a second paper plate 1214 that are sequentially connected, one end of the sub buffer unit 1221 is connected to one end of the second paper plate 1214 far from the second side plate 1213, and the sub buffer unit 1221 is periodically folded from the second paper plate 1214 in the second direction H to abut, adhere or clamp the first paper plate 1212, and each inclined plate 122a contacts the first side plate 1211 and the second side plate 1213 at two ends of the first direction T, respectively.

Alternatively, as shown in fig. 9, the buffer member 122 has a sub buffer unit 1221, the supporting frame 121 includes a first side plate 1211, a first cardboard 1212, a second side plate 1213, and a second cardboard 1214 that are sequentially connected, one end of the sub buffer unit 1221 is connected to one end of the second cardboard 1214 far from the second side plate 1213, the sub buffer unit 1221 is periodically folded from the second cardboard 1214 in the second direction H to abut, adhere or clamp the first cardboard 1212, and the sub buffer unit 1221 is a structure including an inclined plate 122a and an upright plate 122 b.

As shown in fig. 10 to 11, the buffer member 122 has a plurality of sub-buffer units 1221, the buffer member 122 further includes at least one transition section 1222, one transition section 1222 is disposed between two adjacent sub-buffer units 1221, the two adjacent sub-buffer units 1221 are connected to the transition section 1222 on the same side of the same transition section 1222, and the transition section 1222 is attached to the support frame 121.

Specifically, as shown in fig. 10, the buffer 122 has two sub buffer units 1221, and the support frame 121 includes a first side plate 1211, a first plate 1212, a second side plate 1213, a second plate 1214, a third side plate 1215, and a third plate 1216, which are sequentially connected. Wherein the first sub-buffering unit 1221 is connected to the third board 1216 at one end thereof, and the sub-buffering unit 1221 is folded periodically from the third board 1216 in the second direction H to be in contact with the second board 1214, and one end of the sub-buffering unit 1221 in contact with the second board 1214 is connected to one end of the transition 1222; the other end of the transition 1222 is connected to one end of another sub-buffering unit 1221, and the sub-buffering unit 1221 is in contact with the second cardboard 1214 and is periodically folded from the second cardboard 1214 in the second direction H to abut, adhere or snap-fit with the first cardboard 1212.

Alternatively, as shown in fig. 11, the buffer 122 has three sub buffer units 1221, and the support frame 121 includes a first side plate 1211, a first plate 1212, a second plate 1213, a second plate 1214, and a third plate 1215 connected in sequence. For convenience of description, three sub-buffering units 1221 are respectively denoted as a first sub-buffering unit 1221, a second sub-buffering unit 1221, and a third sub-buffering unit 1221, wherein one end of the first sub-buffering unit 1221 is connected to the third side plate 1215, and the first sub-buffering unit 1221 is periodically folded from the third side plate 1215 in the second direction H to be in contact with the second cardboard 1214 and connected to one end of the first transition 1222, and the first transition 1222 is in contact with the second cardboard 1214; the other end of the first transition piece 1222 is connected to one end of the second sub buffer unit 1221, the second sub buffer unit 1221 is periodically folded from the first transition piece 1222 in the second direction H to contact the first cardboard 1212, and one end contacting the first cardboard 1212 is connected to one end of the second transition piece 1222, the other end of the second transition piece 1222 is connected to one end of the third sub buffer unit 1221, and the third sub buffer unit 1221 is periodically folded from the second transition piece 1222 in the second direction H to abut, adhere or snap-fit with the first cardboard 1212.

The above description is merely exemplary of the structure of the buffer member 122 according to the embodiment of the present application, and the number of the sub buffer units 1221 of the buffer member 122 is not limited in this application, and may be specifically selected according to actual needs.

The embodiment of the application also provides a packing box, and the packing box includes shell and as above paper card lining structure 10, and the shell has the chamber that holds that is used for holding the product, and paper card lining structure 10 locates and holds the chamber, and the product can bear in the supporting part 11 of paper card lining structure 10. Wherein, but at least one paper card lining structure 10 of holding in the holding chamber of packing carton, when the quantity of paper card lining structure 10 is a plurality of, a plurality of paper card lining structures 10 can be along first direction T, second direction H or third direction S set up side by side, or, a plurality of paper card lining structures 10 also can set up around the product periphery, for the diversified protective effect of product.

Among them, products bearing against the paper card lining structure 10 include, but are not limited to, smart wearable devices, mobile phones, tablet and other electronic devices, daily chemical products and the like.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (12)

1. A paper card liner structure comprising a folding unit, the folding unit comprising:

a support portion which is periodically folded in a first direction; and

A buffer part stacked on one side of the support part in a second direction perpendicular to the first direction; wherein the buffer part comprises a supporting outer frame and a buffer piece; the supporting outer frame is connected to one end of the supporting part, and a buffer space is defined by bending and winding the supporting part in multiple sections; the buffer piece is arranged in the buffer space and is periodically folded in the second direction, one end of the buffer piece is connected with the support outer frame in the second direction, and the other end of the buffer piece is contacted with the support outer frame.

2. The paper card liner structure according to claim 1, comprising two folding units, the two folding units being disposed axisymmetrically with respect to an axial plane perpendicular to the first direction, and the supporting portions of the two folding units being connected.

3. The paper card liner structure according to claim 1, wherein the support portion includes:

a plurality of sub-supports, each of which comprises two side walls and a connecting wall connected between the two side walls, wherein the two side walls are positioned on the same side of the connecting wall;

the bottom walls are arranged between two adjacent sub-supporting pieces, and are connected to one end of the side wall, which is far away from the connecting wall; and a plurality of bottom walls are attached to the supporting outer frame.

4. A paper card liner structure according to claim 3, wherein,

in the first direction, any two adjacent side walls are arranged at intervals; and/or the number of the groups of groups,

the connecting walls are flat, and a plurality of connecting walls are positioned on a first plane which is parallel to the first direction; the bottom wall is in a flat plate shape, and a plurality of the bottom walls are positioned on a second plane which is parallel to the first plane.

5. The paper card lining structure according to claim 1, wherein the support outer frame comprises a first side plate, a first paper plate, a second side plate and a second paper plate which are sequentially connected, and the first side plate is connected to the support portion; the first side plate is parallel to the second side plate and perpendicular to the first direction, and the first paperboard is parallel to the second paperboard and perpendicular to the second direction so as to define the buffer space; in the second direction, the cushioning member is in contact with the first sheet and the second sheet, respectively.

6. The paper card liner structure of claim 5, wherein the support frame further comprises a third side plate, the third side plate is connected to an end of the second paper plate away from the second side plate, the third side plate is parallel to the first side plate and is attached to the first side plate, and an end of the third side plate away from the second paper plate is in contact with the first paper plate.

7. The paper card liner structure of claim 6, wherein,

the buffer piece is connected to one end of the third side plate far away from the second paperboard; or alternatively, the first and second heat exchangers may be,

the support frame further comprises a third paperboard, the third paperboard is connected to one end, far away from the second paperboard, of the third side plate, the third paperboard is parallel to the first paperboard and is attached to the first paperboard, and the buffer piece is connected to one end, far away from the third side plate, of the third paperboard.

8. The paper card liner structure of claim 5, wherein the cushioning member is attached to an end of the second paperboard remote from the second side panel.

9. The paper card liner structure of claim 1, wherein the buffer comprises at least one sub-buffer unit comprising a plurality of inclined plates at an angle to the second direction;

the inclined plates are sequentially connected end to end; or alternatively, the first and second heat exchangers may be,

the sub buffer unit comprises a plurality of vertical plates, and the vertical plates are parallel to the second direction; one vertical plate is arranged between two adjacent inclined plates, and the two adjacent inclined plates are connected with the vertical plate on the same side of the same vertical plate.

10. The paper card liner structure of claim 9, wherein,

the buffer part is provided with one sub buffer unit, and the sub buffer unit and the support outer frame are arranged at intervals in the second direction; or alternatively, the first and second heat exchangers may be,

the buffer part is provided with a plurality of sub buffer units, the buffer part further comprises at least one transition section, one transition section is arranged between every two adjacent sub buffer units, the two adjacent sub buffer units are connected with the transition section on the same side of the transition section, and the transition section is attached to the supporting outer frame.

11. The paper card liner structure according to any one of claims 1 to 10, wherein the support portion is integrally formed with the cushioning portion.

12. A package, the package comprising:

a housing having a receiving cavity; and

The paper card liner structure of any one of claims 1-11, wherein the paper card liner structure is disposed within the receiving cavity.