A full paper structure cushioning package suitable for electronic products

Abstract

A kind of full paper structure buffer packaging suitable for electronic product, including integrally formed, sequentially connected by transverse folding line, packing groove back lining plate, packing groove top plate, upper front plate, top plate, back plate, bottom plate, lower front plate, packing groove bottom plate, packing groove back lining plate and additional back support plate that is independently separated. After folding forming and fixing, full paper structure buffer packaging with a packing groove can be formed, and two buffer packagings are symmetrically arranged, i.e. two ends of electronic product are inserted into packing grooves on two sides respectively. The utility model realizes integrated structure through accurate folding process, meets the stringent environmental protection requirements of current global non-plastic packaging and degradable packaging, provides three-dimensional omnidirectional support for internal packing groove, and can effectively disperse and absorb impact force in different directions such as horizontal direction and vertical direction. The synergistic effect of overall packaging structure makes it have strong load-bearing performance and energy absorption, especially suitable for multiple handling or long-distance transportation scene, and continuously provides protection for product.

Description

Technical Field

[0001] This utility model relates to the field of packaging, and in particular to a full-paper structure cushioning packaging suitable for electronic products. Background Technology

[0002] To better cushion and protect products, current packaging commonly uses foamed material for internal padding. However, foamed materials are not easily decomposed in the natural environment, and their extensive use increases the environmental burden. To meet increasingly stringent environmental requirements, all-paper inner packaging is becoming more prevalent. However, common paper-lined packaging, such as cardboard boxes and trays, is generally only suitable for small and lightweight products due to its poor cushioning and load-bearing capacity. It cannot adequately meet the protection needs of electronic products that require high cushioning and are heavy and bulky. Furthermore, many all-paper inner packaging systems still employ structures such as plastic corner protectors and adhesive bonding, which still have environmental shortcomings. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a full paper structure cushioning packaging suitable for electronic products. It not only has good load-bearing capacity and can fully cover the product, but also adopts a full paper packaging, fixing and protection structure to meet the stringent environmental protection requirements.

[0004] This utility model is achieved through the following technical solution:

[0005] A paper-structured cushioning packaging suitable for electronic products, characterized in that it comprises a packaging trough backing plate, a packaging trough top plate, an upper front plate, a top plate, a back plate, a bottom plate, a lower front plate, a packaging trough bottom plate, and a packaging trough back plate, all integrally formed and sequentially connected by transverse fold lines.

[0006] On one side of the back panel, opposite to the back panel and along the fold line at the connection: the top panel, the upper front panel, and the top panel of the packaging trough are folded inward in sequence to form the top of the cushioning packaging, the front of the cushioning packaging above the packaging trough, and the top of the packaging trough. The back panel of the packaging trough is folded outward to form the back padding of the packaging trough.

[0007] The left and right sides of the packaging trough back panel are connected to the back support plate by vertical fold lines. The back support plate has a concave back support interface on the side away from the packaging trough back panel. Multiple vertical fold lines are opened at intervals along the back support plate and the fold lines at the connection between the back support plate and the packaging trough back panel. They are folded inwards towards the back side of the packaging trough back panel, pressed against or close to the back panel to form a three-dimensional back protection support. The concave part in the middle of the back support interface supports the packaging trough back panel. The two protruding ends are respectively inserted into the back support limiting port opened on the packaging trough back panel and the back side of the upper front panel, and are limited by the back support limiting port, the packaging trough back panel and / or the outwardly turned limiting baffle on the top plate of the packaging trough.

[0008] On the other side of the back panel, opposite to the back panel and along the fold line at the connection point: the bottom panel, the lower front panel, and the bottom panel of the packaging trough are folded inward in sequence to form the bottom of the cushioning packaging, the front of the cushioning packaging below the packaging trough, and the bottom of the packaging trough; the back panel of the packaging trough is folded outward to form the back of the packaging trough and covers the back liner of the packaging trough. The two are fixed together by the first insertion port and the first insertion tongue to form a hollow cushioning packaging three-dimensional structure with an inwardly recessed packaging trough.

[0009] The top plate and / or bottom plate are connected to the side plates by vertical fold lines on the left and right sides respectively. The side plates are folded inward along the fold lines at the connection points to cover the two ends of the product. The side plates and bottom plate, or the side plates and top plate, or the side plates are fixed together by the second insertion port and the second insertion tongue to form the left and right sides of the cushioned packaging.

[0010] After folding and fixing, the upper front panel, top panel, back panel, bottom panel, lower front panel, and side panels on both sides together form a hollow strip-shaped all-paper structure cushioning packaging shell. The top panel, bottom panel, and back panel of the packaging slot form a packaging slot in the middle of the front panel of the cushioning packaging. The back of the packaging slot is lined with a packaging slot backing panel and two folded and fixed three-dimensional back protection supports. The back protection supports provide comprehensive cushioning protection for the top, bottom, and back of the packaging slot. The three-dimensional back protection supports are located in the hollow cavity of the all-paper structure cushioning packaging. The entire three-dimensional cushioning packaging structure has a simple shape and is formed by folding and fixing a single piece of cardboard. By symmetrically arranging two cushioning packages, the two ends of the electronic product can be inserted into the packaging slots on both sides, with the middle section of the product suspended in the air. The cushioning packaging shell, packaging slot, and back protection supports provide load-bearing and protection for the product at both ends.

[0011] Furthermore, the cushioning packaging also includes an independent, detachable additional back support plate located within the hollow cavity of the three-dimensional structure of the cushioning packaging. One side of the additional back support plate abuts against or approaches the back plate, while the other side has a concave additional back support interface. The concave portion of the additional back support interface supports the packaging slot back liner, and its protruding ends are respectively inserted into the additional back support limiting opening on the packaging slot back liner and the back side of the upper front plate, and are limited by the additional back support limiting opening and the limiting baffle, forming an additional back protection support. The additional back protection support is used to provide more sufficient load-bearing and cushioning protection for the product slot. Whether to configure additional back protection support, how many additional back protection supports to configure, and the number of additional back support interfaces on the additional back protection support can be flexibly selected according to the volume and weight of the product.

[0012] Furthermore, a more robust three-dimensional additional back support structure is presented: Four vertical fold lines are spaced apart on the additional back support plate, dividing it into a central additional support base plate and four symmetrically arranged additional support panels connected by vertical fold lines. The two outermost additional support panels are connected by third tongues via fold lines. Adjacent additional support panels have concave notches along the fold lines at their junctions and are folded in half to form double-layered additional back support interfaces. Two third tongues are inserted into the third slots on the left and right sides of the additional support base plate for fixation, forming a U-shaped three-dimensional additional back support structure with double-layered additional back support interfaces at both ends. After assembly, the additional support base plate of the additional back support rests on the back plate, and each additional back support has two spaced-apart double-layered additional back support interfaces, further enhancing the support and protection effect.

[0013] Furthermore, the two end faces of the concave back support interface and the additional back support interface respectively abut against or approach the top plate and the bottom plate, and the concave surfaces respectively abut against or approach the packaging slot cavity; the tops of the two ends of the additional back support interface respectively abut against or approach the upper front plate and the lower front plate. When bearing weight, the back support interface and the additional back support interface abut against the top plate, the bottom plate, and the product slot wall, which can better buffer vertical pressure; when subjected to lateral impact, the additional back support interface abuts against the back plate, the upper front plate, the lower front plate, and the bottom of the product slot, which can better buffer lateral pressure.

[0014] Furthermore, an upper step plate is provided at the connection between the upper front panel and the top panel. The left and right sides of the upper step plate are disconnected from the upper front panel and the top panel by vertical cut lines. The upper step plate is divided into two interconnected parts by horizontal fold lines, allowing the upper step plate to fold inward relative to the corners of the folded upper front panel and top panel to form a stepped surface. This stepped surface can be used to place electronic product accessory boxes, instruction manuals, and other items, making the packaging neater and more secure.

[0015] Furthermore, a lower step plate is provided at the connection between the lower front plate and the packaging tank bottom plate. The lower step plate is disconnected from the lower front plate and the packaging tank bottom plate on both sides by vertical cut lines. The lower step plate is divided into two interconnected parts by a horizontal folding line, allowing the lower step plate to fold inward relative to the corner of the folded lower front plate and the packaging tank bottom plate to form a stepped surface. One or more lower step plates can be provided to strengthen the support structure of the packaging tank bottom plate.

[0016] Furthermore, one of the top or bottom plates has its left and right sides connected to a side plate via vertical fold lines, and the other has its left and right sides connected to a side plate liner via vertical fold lines. The side plate liner is folded to form a hollow, three-dimensional side liner, and then folded inwards on the inside of the side plate. The inner side of the side liner is tightly attached to both ends of the packaging trough, with the ends pressed against or close to the top and bottom plates. This side protective liner further enhances the cushioning performance at both ends of the packaging trough, improves lateral impact resistance, and also provides support for the top and bottom plates.

[0017] Furthermore, the side panels are located on the left and right sides of the top panel, and the second tongue is connected to the side of the side panel away from the top panel via a fold line. The second insertion port is located on the fold line at the connection between the bottom panel and the inner lining of the side panel. After the side panel wraps the inner lining of the side panel inside, it is then fixed to the main body of the cushioning packaging to complete the folding and forming of the entire cushioning packaging without the need for additional adhesive fixation. Furthermore, the all-paper side lining can be achieved through the following structure: the side lining plate includes a support connecting plate, an outer lining plate, an inner lining top plate, a front inner lining plate, a front inner lining support insert, a rear inner lining plate, and a rear inner lining support insert connected sequentially by transverse fold lines; the outer lining plate is connected to the side lining plate; on one side of the outer lining plate, opposite to the outer lining plate and along the fold line at the connection point, the support connecting plate is folded in half and stacked on the outer lining plate, and the support plates on the left and right sides of the support connecting plate, connected by vertical fold lines, are folded inward and erected on the support connecting plate; on the other side of the outer lining plate, opposite to the outer lining plate and along the fold line at the connection point, the top inner lining plate and the front inner lining plate are folded inward in sequence and cover the outside of the outer lining plate; the front inner lining support insert... The support plate is first folded in half along its central horizontal fold line. The vertically folded front support notch inside is then folded in half again to form an opening. The folded front support plate is then folded inwards, aligning its opening with the support limiting slot on the support plate, and inserted into the support plate. The rear inner liner and the rear support plate are folded inwards sequentially, covering the outside of the support plate. The rear support notch on the rear support plate is aligned with the support limiting slot on the support plate, and inserted into the support plate. This forms a hollow, three-dimensional side liner with an internal 2×2 grid consisting of the front and rear support plates and the support plate, and an external outer shell consisting of the outer liner, top liner, front inner liner, and rear inner liner. The combination of the three-dimensional grid inner liner and the outer shell further enhances the impact resistance of the cushioning packaging sides.

[0018] Furthermore, the fold line at the connection between the packaging trough back panel and the packaging trough top panel is divided into several discontinuous segments by the first insertion port, the limiting baffle, and the auxiliary folding flap. The outer edges of the limiting baffle and the auxiliary folding flap are U-shaped, and their two ends are connected to the fold line at the connection between the packaging trough back panel and the packaging trough top panel. The first insertion tongue is located on the side of the packaging trough back panel away from the back panel. The limiting baffle is used to limit and fix the back support interface and the additional back support interface. Designing the first insertion port and the limiting baffle on the fold line facilitates the fixing and shaping of the cushioned packaging. However, the discontinuous fold line may be detrimental to the folding between the packaging trough back panel and the packaging trough top panel. Therefore, the auxiliary folding flap is designed to facilitate folding.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. Achieving an integrated structure through precise folding technology eliminates the need for complex assembly, traditional anti-collision materials such as plastic corners and foam, and chemical adhesives such as glue. This avoids the generation of plastic waste and harmful chemicals at the source, fully complying with the current stringent global environmental protection requirements for plastic-free and biodegradable packaging.

[0021] 2. Through designs such as back protection support, additional back protection support, lower step plate, and side lining, the internal packaging compartment is provided with three-dimensional all-round support, which can effectively disperse and absorb impact forces from different directions such as horizontal and vertical. For example, bumps during transportation, vertical impacts during drops, or lateral collisions during handling can all be mitigated through structural design to prevent product damage.

[0022] 3. The synergistic effect of the overall packaging structure gives it strong load-bearing capacity, which can maintain the stability of even heavy electronic products and prevent the packaging groove from deforming and causing the product to shift.

[0023] 4. The structure features multiple close-fitting or adjacent positions, and the three-dimensional hollow design of the all-paper lining provides excellent energy absorption. When subjected to external impact, the cushioning structure undergoes slight deformation. By dispersing stress through the mutual clamping of various parts, the impact force is converted into structural deformation energy, thereby protecting the internal product. After the external force is removed, the elastic properties of the paper allow the structure to rebound to its initial state, preventing loss of cushioning capacity due to permanent deformation. It is especially suitable for scenarios involving repeated handling or long-distance transportation, continuously providing protection for the product. Attached Figure Description

[0024] Figures 1-2 This is a schematic diagram of a preferred embodiment of the flat plate structure of this utility model (the labeling may vary).

[0025] Figures 3-18 for Figures 1-2 Schematic diagram of the folding process

[0026] Figures 1-18 In the middle: 1 is the back panel, 2 is the top panel, 3 is the upper front panel, 4 is the upper step panel, 5 is the top panel of the packaging trough, 6 is the back panel of the packaging trough, 7 is the back support panel, 8 is the inner lining panel of the side panel, 9 is the side panel, 10 is the bottom panel, 11 is the lower front panel, 12 is the bottom panel of the packaging trough, 13 is the back panel of the packaging trough, 14 is the lower step panel, 15 is the additional back support panel, 16 is the first insertion port, 17 is the first insertion tongue, 18 is the limiting baffle, 19 is the auxiliary folding flap, 20 is the back support limiting port, 21 is the additional back support limiting port, 22 is the second insertion tongue, 23 is the second insertion port, 2 4 is the back support plate, 25 is the recessed notch, 26 is the additional support base plate, 27 is the additional support plate, 28 is the third tongue, 29 is the third socket, 30 is the support connecting plate, 31 is the support limiting port, 32 is the support plate, 33 is the inner lining outer plate, 34 is the inner lining top plate, 35 is the inner lining front inner plate, 36 is the inner lining front support insert plate, 37 is the inner lining rear inner plate, 38 is the inner lining rear support insert plate, 39 is the inner lining front support notch, 40 is the inner lining rear support notch, 41 is the clearance groove, 42 is the additional back support interface, 43 is the back support interface, and 44 is the packaging groove. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1-2 The all-paper structure cushioning packaging shown includes a one-piece molded packaging trough backing plate 6, packaging trough top plate 5, upper front plate 3, top plate 2, back plate 1, bottom plate 10, lower front plate 11, packaging trough bottom plate 12 and packaging trough back plate 13 connected sequentially by transverse fold lines, as well as two independent additional back support plates 15.

[0029] The packaging trough backing plate 6 has two back support limiting ports 20 and two additional back support limiting ports 21 on the side away from the packaging trough top plate 5. The fold line at the junction of the packaging trough backing plate 6 and the packaging trough top plate 5 is divided into seven mutually disconnected segments by two first insertion ports 16, two limiting baffles 18 and two auxiliary folding flaps 19. The outer edges of the limiting baffles 18 and the auxiliary folding flaps 19 are U-shaped, and the two ends of the U-shape are connected to the fold line. When the packaging trough backing plate 6 and the packaging trough top plate 5 are folded relative to each other, the limiting baffles 18 and the auxiliary folding flaps 19 can be separated from the packaging trough top plate 5 along the outer edge of the U-shaped blade line.

[0030] The packaging trough backing plate 6 is connected to the back support plate 7 on the left and right sides by vertical fold lines. The back support plate 7 is provided with three vertical fold lines at intervals, dividing the back support plate 7 into four interconnected back support assembly plates 24. To facilitate folding, double-layer fold lines are provided at the junction of the two outermost back support assembly plates 24, and concave notches 25 are symmetrically opened along the double-layer fold lines.

[0031] An upper step plate 4 is provided at the connection between the upper front plate 3 and the top plate 2. The upper step plate 4 is disconnected from the upper front plate 3 and the top plate 2 on the left and right sides by vertical cut lines. The upper step plate 4 is divided into two interconnected parts by a horizontal folding line.

[0032] The top plate 2 is connected to the side plate 9 on the left and right sides by vertical fold lines, and the second tongue 22 is connected to the side plate 9 away from the top plate 2 by fold lines.

[0033] The base plate 10 has side lining plates 8 on its left and right sides. Each side lining plate 8 includes a support connecting plate 30, an outer lining plate 33, an inner lining top plate 34, a front inner lining plate 35, a front inner lining support plate 36, a rear inner lining plate 37, and a rear inner lining support plate 38, all connected sequentially by a horizontal folding line. For easy folding, the folding line between the support connecting plate 30 and the outer inner lining plate 33 is a double-layer folding line. Support plates 32 are connected to the left and right sides of the support connecting plate 30 by vertical folding lines. Two symmetrically spaced support limiting openings 31 are provided on the opposite side of each support plate 32. The outer liner 33 is vertically connected to the inner liner 8 of the side panel, and a second insertion slot 23 is provided on the fold line; a clearance groove 41 is vertically provided at the connection between the top liner 34 and the front inner liner 35 to avoid the protruding parts on the surface of the packaged electronic product and to facilitate the removal of the electronic product when disassembling; the front support insert 36 of the inner liner is divided into two interconnected parts by a horizontal fold line at its middle position, and two front support notches 39 of the inner liner are vertically provided inside it across the fold line; two rear support notches 40 of the inner liner are provided on the side of the rear inner liner 38 away from the rear inner liner 37.

[0034] Two lower step plates 14 are provided at intervals at the connection between the lower front plate 11 and the bottom plate of the packaging tank 12. The lower step plates 14 are disconnected from the lower front plate 11 and the bottom plate of the packaging tank 12 by cutting lines on the left and right sides. The lower step plates 14 are divided into two interconnected parts by transverse folding lines.

[0035] Two first inserts are provided on the side of the packaging slot back plate 13 away from the back plate 1.

[0036] The additional back support plate 15 is provided with four vertical fold lines at intervals, dividing the additional back support plate 15 into an additional support base plate 26 connected to each other in the middle and four additional support assembly plates 27 symmetrically arranged on the left and right and connected by vertical fold lines. The two outermost additional support assembly plates 27 are connected by a third tongue 28 through a fold line. In order to facilitate folding, a double-layer fold line is provided at the junction of two adjacent additional support assembly plates 27, and an inward recessed notch 25 is symmetrically opened along the double-layer fold line. A third insertion port 29 is provided on the fold line between the additional support assembly plate 27 and the additional support base plate 26.

[0037] The cushioning package can be folded as follows:

[0038] 1. The side panel lining is folded 8 times to form a hollow, three-dimensional side lining:

[0039] ①For example Figure 3 As shown, the support connecting plate 30 is folded and stacked on the inner lining outer plate 33 relative to the inner lining outer plate 33, and the support plate 32 is folded inward at 90° so that it stands upright on the support connecting plate 30.

[0040] ②For example Figure 4 As shown, the inner lining top plate 34, inner lining front inner plate 35, inner lining front support plate 36, inner lining rear inner plate 37 and inner lining rear support plate 38 are folded inward by 90° relative to the inner lining outer plate 33 until they are vertical.

[0041] ③ For example Figure 5 As shown, the inner front panel 35, the inner front support plate 36, the inner rear panel 37, and the inner rear support plate 38 are folded inward at 90° relative to the top panel 34 of the inner lining until they cover the support plate 32. Then, the inner front support plate 36 is folded outward, and the inner front support notch 39 is folded into an open notch. The inner rear panel 37 and the inner rear support plate 38 cover the inner front panel 35.

[0042] ④ For example Figure 6 As shown, the folded inner lining front support plate 36 is then folded inward at 90° relative to the inner lining front inner plate 35, and the opening notch is aligned with the two support limiting holes 31 opened on the support plate 32 and inserted into the support plate 32.

[0043] ⑤ For example Figure 7 As shown, the inner rear panel 37 and the inner rear support plate 38 are folded inward by 90° in sequence. The inner rear panel 37 covers the support plate 32, and the inner rear support notch 40 on the inner rear support plate 38 is aligned with the support limiting port 31 and inserted into the support plate 32.

[0044] At this time, the side lining is folded and formed, and its interior is composed of a 2×2 grid consisting of a front lining support plate 36, a rear lining support plate 38 and a support plate 32. Its exterior is composed of an outer lining plate 33, a top lining plate 34, a front lining inner plate 35 and a rear lining inner plate 37.

[0045] 2. The cushioning packaging above the packaging slot is folded into shape:

[0046] ①For example Figure 8 As shown, the top plate 2, the upper front plate 3, the top plate of the packaging trough 5, and the backing plate of the packaging trough 6 are folded inward by 90° relative to the back plate 1 until they are vertical.

[0047] ②For example Figure 9 As shown, the upper front plate 3, the top plate of the packaging trough 5, and the backing plate of the packaging trough 6 are folded inward by 90° relative to the top plate 2 to a horizontal position. The upper step plate 4 is folded inward at the corner where the upper front plate 3 and the top plate 2 are connected to form a step surface.

[0048] ③ For example Figure 10 As shown, the top plate 5 of the packaging trough is folded inward by 90° relative to the upper front plate 3 to become vertical, and the back liner plate 6 of the packaging trough is folded outward by 90° relative to the top plate 5 of the packaging trough to become horizontal; then the two outermost back support assembly plates 24 of the back support plate 7 are folded in half to obtain a double-layer concave back support interface 43, and finally the back support interface 43 and its adjacent back support assembly plates 24 are folded inward by 90° sequentially towards the back side of the back liner plate 6 of the packaging trough along the other two fold lines inside the back support plate 7.

[0049] ④ For example Figure 11 As shown, the back support plate 7 is folded inward at 90° along the fold line where it connects to the packaging trough back liner plate 6. The back support interface 43 is pressed against or close to the back plate 1 to form a three-dimensional back protection support. The concave part in the middle of the back support interface 43 supports the packaging trough back liner plate 6. The two protruding ends are respectively inserted into the back support limiting port 20 opened on the packaging trough back liner plate 6 and the back side of the upper front plate 3, and are limited by the back support limiting port 20 and the outwardly folded limiting baffle 18.

[0050] At this time, the cushioning packaging above the packaging trough is folded and formed. The top plate 2, the upper front plate 3, and the top plate 5 of the packaging trough form the top of the cushioning packaging, the front of the cushioning packaging above the packaging trough, and the top of the packaging trough. The back liner 6 of the packaging trough forms the back liner of the packaging trough. The back support is placed on the back plate 1 and supports the back liner 6 of the packaging trough.

[0051] 3. Additional back support folding and insert:

[0052] ①For example Figure 12 As shown, in the lower left corner, the two adjacent additional support plates 27 on the additional back support plate 15 are folded 180° to obtain a double-layer additional back support interface 42. Then, the additional back support interface 42 is folded inward by 90° and the two third tongues 28 are inserted into the third socket 29 for fixation, forming a three-dimensional additional back protection support structure with a U-shape and double-layer additional back support interfaces 42 at both ends of the U-shape.

[0053] ②For example Figure 13 As shown, the additional back protection support is inserted into the back side of the packaging slot backing plate 6. The recessed part of the additional back support interface 42 supports the packaging slot backing plate 6, and its two protruding ends are respectively inserted into the additional back support limiting port 21 opened on the packaging slot backing plate 6 and the back side of the upper front plate 3, and are limited by the additional back support limiting port 21 and the limiting baffle 18. The additional support base plate 26 is placed on the back plate 1, and the additional back protection support and the back protection support together support the packaging slot backing plate 6.

[0054] In this embodiment, a back support plate 7, an additional back support plate 15 and a limiting baffle 18 are provided on each of the left and right sides of the packaging trough back liner plate 6. The back support plate 7 and the additional back support plate 15 on the same side of the packaging trough back liner plate 6 are located on both sides of the limiting baffle 18.

[0055] 4. The cushioning packaging below the packaging slot is folded into shape:

[0056] ①For example Figure 14 As shown, the lower front plate 11 is folded inward at 90° relative to the bottom plate 10 to a vertical position, the packaging trough bottom plate 12 is folded inward at 90° relative to the lower front plate 11 to a horizontal position, the packaging trough back plate 13 is folded outward at 90° relative to the packaging trough bottom plate 12 to a vertical position, and the lower step plate 14 is folded inward at the corner of the folded lower front plate 11 and packaging trough bottom plate 12 to form a step surface.

[0057] ②For example Figure 15 As shown, the bottom plate 10, the lower front plate 11, the bottom plate 12 of the packaging trough, and the back plate 13 of the packaging trough are folded inward by 90° relative to the back plate 1, so that the back plate 13 of the packaging trough covers the back liner plate 6 of the packaging trough. The first tongue 17 is inserted into the first insertion port 16 and fixed to form a hollow buffer packaging three-dimensional structure with a concave packaging trough 44.

[0058] Furthermore, as can be seen from the figure, after the insertion is formed, the two end faces of the concave back support interface 43 and the additional back support interface 42 respectively abut against or approach the top plate 2 and the bottom plate 10, and the concave surfaces respectively abut against or approach the cavity of the packaging groove 44; the tops of the two ends of the additional back support interface 42 abut against or approach the upper front plate 3 and the lower front plate 11 respectively; when the cushioning packaging is subjected to force, the elastic properties of the paper material cause the concave structure of the back support interface 43 and the additional back support interface 42 to abut against the packaging groove 44 and the cushioning packaging to disperse the stress, converting the impact force into structural deformation energy, thereby protecting the internal product.

[0059] 5. Folding and forming of side linings and side panels:

[0060] ①For example Figure 16 As shown, the side lining formed by folding the side panel lining plate 8 in step 1 is folded inward at 90° relative to the bottom plate 10 and tightly attached to both ends of the packaging groove 44. The two ends of the side lining are pressed against or close to the top plate 2 and the bottom plate 10.

[0061] ②For example Figure 17 As shown, the side panel 9 is folded inward at 90° relative to the top panel 2, the side panel 9 is tightly attached to the side lining, the second tongue 22 is inserted into the second socket 23 and fixed, and the three-dimensional folding of the entire cushioning package is completed.

[0062] After folding and fixing, the upper front panel 3, top panel 2, back panel 1, bottom panel 10, lower front panel 11, and side panels 9 on both sides together form a hollow strip-shaped all-paper structure cushioning packaging shell. The top panel 5, bottom panel 12, back panel 13, and side linings form a packaging groove in the middle of the front panel of the cushioning packaging. The back of the packaging groove is lined with a packaging groove backing panel 6, and the groove cavity is fully cushioned and protected by two back protection supports and two additional back protection supports. Figure 18 As shown, by symmetrically arranging two cushioning packages, the two ends of the electronic product can be inserted into the packaging slots on both sides respectively. The stepped surfaces formed by the two opposing upper step plates 4 can be used to place electronic product accessory boxes, instruction manuals and other items.

Claims

1. A paper-structured cushioning packaging suitable for electronic products, characterized in that: It includes a packaging tank backing plate (6) that is integrally formed and sequentially connected by transverse fold lines, a packaging tank top plate (5), an upper front plate (3), a top plate (2), a back plate (1), a bottom plate (10), a lower front plate (11), a packaging tank bottom plate (12), and a packaging tank back plate (13). On one side of the back panel (1), relative to the back panel (1), along the fold line at the connection: the top panel (2), the upper front panel (3), and the top panel (5) of the packaging trough are folded inward in sequence to form the top of the cushioning packaging, the front of the cushioning packaging above the packaging trough, and the top of the packaging trough. The back panel (6) of the packaging trough is folded outward to form the back pad of the packaging trough. The packaging trough back panel (6) is connected to the back support plate (7) on the left and right sides by vertical fold lines. The back support plate (7) has a concave back support interface (43) on the side away from the packaging trough back panel (6). Multiple vertical fold lines are opened at intervals along the back support plate (7) and the fold lines at the connection between the back support plate (7) and the packaging trough back panel (6) are folded inwards towards the back side of the packaging trough back panel (6), pressed against or close to the back plate (1) to form a three-dimensional back protection support. The concave part in the middle of the back support interface (43) supports the packaging trough back panel (6). The two protruding ends are inserted into the back support limiting port (20) opened on the packaging trough back panel (6) and the back side of the upper front plate (3) respectively, and are limited by the back support limiting port (20), the packaging trough back panel (6) and / or the outwardly turned limiting baffle (18) on the packaging trough top plate (5). On the other side of the back panel (1), relative to the back panel (1), along the fold line at the connection: the bottom panel (10), the lower front panel (11), and the bottom panel (12) of the packaging trough are folded inward in sequence to form the bottom of the cushioning packaging, the front of the cushioning packaging below the packaging trough, and the bottom of the packaging trough; the back panel (13) of the packaging trough is folded outward to form the back of the packaging trough and covers the back panel (6) of the packaging trough. The two are fixed together by the first insertion port (16) and the first insertion tongue (17) to form a hollow cushioning packaging three-dimensional structure with a concave packaging trough (44); The top plate (2) and / or bottom plate (10) are connected to the side plates (9) by vertical fold lines on the left and right sides respectively. The side plates (9) are folded inward along the fold lines at the connection point to cover both ends of the packaging groove (44). The side plates (9) and bottom plate (10), or the side plates (9) and top plate (2), or the side plates (9) are fixed together by the second insertion port (23) and the second insertion tongue (22) to form the left and right sides of the cushioning packaging.

2. The all-paper structure cushioning packaging for electronic products according to claim 1, characterized in that: The cushioning packaging also includes an independent, detachable additional back support plate (15) located in the hollow cavity of the three-dimensional structure of the cushioning packaging. One side of the additional back support plate (15) is pressed against or close to the back plate (1), and the other side is provided with a concave additional back support interface (42). The concave part of the additional back support interface (42) supports the packaging trough back liner (6), and its two protruding ends are respectively inserted into the additional back support limiting port (21) opened on the packaging trough back liner (6) and the back side of the upper front plate (3), and are limited by the additional back support limiting port (21) and the limiting baffle (18) to form an additional back protection support.

3. The all-paper structure cushioning packaging for electronic products according to claim 2, characterized in that: The additional back support plate (15) is provided with four vertical fold lines at intervals, dividing the additional back support plate (15) into an additional support base plate (26) connected to each other in the middle and four additional support assembly plates (27) symmetrically arranged on the left and right and connected by vertical fold lines. The two outermost additional support assembly plates (27) are connected by fold lines to the third tongue (28). Two adjacent additional support plates (27) have concave notches (25) along the fold line at the junction and are folded in half to form a double-layer additional back support interface (42). Two third tongues (28) are inserted into the third sockets (29) on the left and right sides of the additional support base plate (26) and fixed to form a three-dimensional additional back support structure that is U-shaped as a whole and has double-layer additional back support interfaces (42) at both ends of the U-shape.

4. The all-paper structure cushioning packaging for electronic products according to claim 2, characterized in that: The concave end faces of the back support interface (43) and the additional back support interface (42) respectively abut against or approach the top plate (2) and the bottom plate (10), and the concave inner surface respectively abut against or approach the cavity of the packaging groove (44); the tops of the two ends of the additional back support interface (42) abut against or approach the upper front plate (3) and the lower front plate (11) respectively.

5. The all-paper structure cushioning packaging for electronic products according to claim 1, characterized in that: An upper step plate (4) is provided at the connection between the upper front plate (3) and the top plate (2). The upper step plate (4) is disconnected from the upper front plate (3) and the top plate (2) on the left and right sides. The upper step plate (4) is divided into two interconnected parts by a horizontal folding line, so that the upper step plate (4) can be folded into a step surface relative to the corner of the folded upper front plate (3) and the top plate (2).

6. The all-paper structure cushioning packaging for electronic products according to claim 1, characterized in that: A lower step plate (14) is provided at the connection between the lower front plate (11) and the bottom plate of the packaging trough (12). The lower step plate (14) is disconnected from the lower front plate (11) and the bottom plate of the packaging trough (12) on the left and right sides. The lower step plate (14) is divided into two interconnected parts by a horizontal folding line, so that the lower step plate (14) can be folded into a step surface at the corner of the folded lower front plate (11) and the bottom plate of the packaging trough (12).

7. The all-paper structure cushioning packaging for electronic products according to claim 1, characterized in that: One of the top plate (2) or the bottom plate (10) is connected to the side plate (9) by vertical fold lines on the left and right sides respectively, and the other is connected to the side plate liner (8) by vertical fold lines on the left and right sides respectively. The side plate liner (8) is folded to form a hollow three-dimensional side liner, and then folded inward on the inside of the side plate (9). The inside of the side liner is tightly attached to both ends of the packaging groove (44), and the two ends are pressed against or close to the top plate (2) and the bottom plate (10).

8. The all-paper structure cushioning packaging for electronic products according to claim 7, characterized in that: The side plate (9) is located on the left and right sides of the top plate (2), the second tongue (22) is connected to the side of the side plate (9) away from the top plate (2) by a fold line, and the second socket (23) is located on the fold line at the connection between the bottom plate (10) and the inner lining plate (8) of the side plate; The side panel lining (8) includes a support connecting plate (30), an outer lining plate (33), an inner lining top plate (34), a front inner lining plate (35), a front inner lining support insert plate (36), a rear inner lining plate (37), and a rear inner lining support insert plate (38) connected sequentially by transverse fold lines; the outer lining plate (33) is connected to the side panel lining (8); On one side of the inner lining outer panel (33), relative to the inner lining outer panel (33), along the fold line at the connection: the support connecting plate (30) is folded and stacked on the inner lining outer panel (33), and the support plates (32) on the left and right sides of the support connecting plate (30) are connected by vertical fold lines and folded inward and erected on the support connecting plate (30); On the other side of the inner lining outer panel (33), opposite to the inner lining outer panel (33), along the fold line at the connection: the inner lining top panel (34) and the inner lining front inner panel (35) are folded inward in sequence, covering the outside of the inner lining outer panel (33); the inner lining front support insert (36) is first folded along the horizontal fold line in its middle position, and the vertical inner lining front support notch (39) inside is folded inward to form an opening notch, and the inner lining front support insert (36) after being folded inward again, The opening notch is aligned with the support limiting port (31) opened on the support plate (32) and inserted into the support plate (32); the inner lining rear inner plate (37) and the inner lining rear support insert plate (38) are folded inward in sequence, the inner lining rear inner plate (37) covers the support plate (32), and the inner lining rear support notch (40) opened on the inner lining rear support insert plate (38) is aligned with the support limiting port (31) opened on the support plate (32) and inserted into the support plate (32); The interior of the hollow three-dimensional side lining is composed of a 2×2 grid consisting of a front lining support plate (36), a rear lining support plate (38), and a support plate (32). The exterior is composed of an outer lining plate (33), a top lining plate (34), a front lining inner plate (35), and a rear lining inner plate (37).

9. The all-paper structure cushioning packaging for electronic products according to claim 1, characterized in that: The back support plate (7) is provided with three vertical fold lines at intervals, dividing the back support plate (7) into four interconnected back support panels (24). The two outermost back support panels (24) have concave notches (25) along the fold lines at the junction and are folded in half to form a double-layer back support interface (43).

10. The all-paper structure cushioning packaging for electronic products according to claim 1, characterized in that: The fold line at the connection between the packaging trough back liner (6) and the packaging trough top plate (5) is divided into several segments by the first insertion port (16), the limiting baffle (18) and the auxiliary folding flap (19). The outer edges of the limiting baffle (18) and the auxiliary folding flap (19) are U-shaped, and their two ends are connected to the fold line at the connection between the packaging trough back liner (6) and the packaging trough top plate (5). The first insertion tongue (17) is located on the side of the packaging trough back plate (13) away from the back plate (1).

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