Fabricated box liner

CN224767377UActive Publication Date: 2026-09-18陕西润泽华阳智能装备科技有限公司
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Patent Information

Application Number
CN202522432605.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-09-18
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

[0004]本实用新型提供一种装配式箱体内衬,用以解决现有技术中的装配式箱体在使用时缺乏有效缓冲结构,导致运输品在运输过程中易与箱体发生刚性碰撞而受损的问题

Benefits of technology

[0014]The beneficial effects of the prefabricated box liner provided by this utility model are as follows: By setting a first elastic mechanism and a second elastic mechanism with mutually perpendicular telescopic directions, it simultaneously absorbs lateral and longitudinal impact forces, achieving multi-directional buffering protection and significantly reducing the risk of collision damage to transported goods due to complex working conditions. By setting a second buffer component on the outer bottom surface of the liner box, it absorbs vertical impact forces, preventing collisions between the liner box and the bottom of the assembly box, and enhancing overall buffering performance. The grooves and buffer airbags in the liner component cover and fix the transported goods, reducing internal movement and friction, achieving internal buffering and adaptability to transported goods of different shapes. The cooperation of the guide posts and guide sleeve holes ensures accurate alignment of the upper and lower liner components, improving the sealing and fixation of the liner component, facilitating installation and reducing operational errors.

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Abstract

This utility model provides a prefabricated box liner, including a prefabricated box with a hinged lid at the top. Multiple vertical grooves are provided on the inner sidewall, and an inner liner is slidably connected to these grooves. Multiple first buffer components, cooperating with the vertical grooves, are provided on the outer sidewall of the inner liner. Each first buffer component includes a vertical fixing strip fixed to the outer sidewall of the inner liner, a first elastic mechanism on the other side of the fixing strip, and a vertical slider cooperating with the vertical groove on the side of the first elastic mechanism away from the fixing strip. A second elastic mechanism is also provided between the vertical slider and the vertical groove, with the extension and retraction directions of the first and second elastic mechanisms perpendicular to each other. This utility model, by setting up first and second elastic mechanisms with mutually perpendicular extension and retraction directions, simultaneously absorbs lateral and longitudinal impact forces, achieving multi-directional buffer protection and significantly reducing the risk of collision damage to transported goods under complex conditions.
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Description

Technical Field

[0001] This utility model relates to the field of assembly box lining technology, and in particular to an assembly box lining. Background Technology

[0002] Prefabricated containers typically refer to rigid containers assembled from modular components such as base plates, side plates, end plates, and top covers using fasteners, screws, or locks. They are widely used in logistics, warehousing, and industrial transportation. These containers offer numerous advantages, including robust structure, reusability, and the ability to be disassembled and folded when unloaded to save space. They provide basic protection for precision instruments, equipment, and other high-value industrial products, serving as a key component in ensuring a safe and efficient supply chain.

[0003] Existing prefabricated containers typically have regular geometric cavities inside. While these offer strong structural integrity, they lack customized cushioning designs for irregularly shaped or sensitive items. During transport, especially under complex conditions such as road bumps, railway track changes, and lifting operations, the items inside the container inevitably experience slight displacement or vibration due to inertia. Because there is no effective and tight cushioning medium between the outer surface of the item and the rigid inner wall of the container, frequent hard collisions and friction occur directly or indirectly. This continuous collision can lead to scratches, paint peeling, or structural deformation on the item's surface. More seriously, in the event of an accidental drop or severe impact, the enormous kinetic energy cannot be effectively absorbed and dispersed, and will be directly transferred to the interior of the item, causing irreversible, hidden or visible damage to its core precision components, greatly increasing transport risks. Utility Model Content

[0004] This utility model provides a prefabricated box liner to solve the problem that prefabricated boxes in the prior art lack an effective buffer structure during use, which makes transported goods easily damaged by rigid collisions with the box during transportation.

[0005] This utility model provides an assembled box liner, including an assembly box with a lid hinged to the top. Multiple vertical grooves are provided on the inner side wall, and an inner liner box is slidably connected to the vertical grooves. Multiple first buffer components that cooperate with the vertical grooves are provided on the outer side wall of the inner liner box. Each first buffer component includes a vertical fixing strip fixed to the outer side wall of the inner liner box. A first elastic mechanism is provided on the side of the vertical fixing strip away from the outer side wall of the inner liner box. A vertical slider that cooperates with the vertical groove is provided on the side of the first elastic mechanism away from the vertical fixing strip. A second elastic mechanism is also provided between the vertical slider and the vertical groove. The extension and retraction directions of the first and second elastic mechanisms are perpendicular.

[0006] Optionally, the first elastic mechanism includes multiple first telescopic columns, one end of each first telescopic column being embedded inside a vertical fixing strip, and the other end being fixedly installed on one side of the first connecting plate. Multiple first telescopic springs are also installed between the first connecting plate and the vertical fixing strip, and a vertical slider is fixedly installed on the side of the first connecting plate away from the first telescopic springs.

[0007] Optionally, the second elastic mechanism includes a plurality of vertical side plates arranged perpendicularly to the first connecting plate. The vertical side plates are disposed between the outer wall of the vertical slider and the inner wall of the vertical slide groove, and the vertical side plates and the vertical slider are elastically connected by a plurality of second telescopic springs.

[0008] Optionally, the outer bottom surface of the inner liner box is provided with a second buffer assembly. The second buffer assembly includes a plurality of third telescopic springs that are uniformly fixed to the bottom end of the inner liner box. The bottom end of the third telescopic springs is fixedly connected to the top end of the support plate, and the bottom end of the support plate abuts against the inner bottom surface of the assembly box.

[0009] Optionally, the side of the support plate extends into multiple extension plates that mate with the vertical fixing bars, and each extension plate is elastically connected to the corresponding vertical fixing bar by a fourth telescopic spring.

[0010] Optionally, the inner liner box also includes an inner liner assembly for covering and securing the transported goods. The inner liner assembly includes a lower inner liner located at the bottom of the inner liner box and an upper inner liner movably connected to the lower inner liner. Grooves for accommodating the transported goods are formed on the opposite surfaces of the lower and upper inner liners, and each groove is equipped with a cushioning airbag.

[0011] Optionally, a guide post is fixed at each of the four corners of the upper surface of the lower inner liner, and a guide sleeve hole is opened on the upper inner liner to mate with the guide post.

[0012] Optionally, the inflation lines of the cushioning airbag extend through the lower and upper liner to the outside of the liner box.

[0013] Optionally, the outer surfaces of the lower and upper linings abut against the inner surface of the lining box.

[0014] The beneficial effects of the prefabricated box liner provided by this utility model are as follows: By setting a first elastic mechanism and a second elastic mechanism with mutually perpendicular telescopic directions, it simultaneously absorbs lateral and longitudinal impact forces, achieving multi-directional buffering protection and significantly reducing the risk of collision damage to transported goods due to complex working conditions. By setting a second buffer component on the outer bottom surface of the liner box, it absorbs vertical impact forces, preventing collisions between the liner box and the bottom of the assembly box, and enhancing overall buffering performance. The grooves and buffer airbags in the liner component cover and fix the transported goods, reducing internal movement and friction, achieving internal buffering and adaptability to transported goods of different shapes. The cooperation of the guide posts and guide sleeve holes ensures accurate alignment of the upper and lower liner components, improving the sealing and fixation of the liner component, facilitating installation and reducing operational errors. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of the assembled box liner provided in an embodiment of this utility model; Figure 2 A schematic diagram of the main cross-sectional three-dimensional structure of the assembled box liner provided in this embodiment of the utility model; Figure 3 for Figure 2 A magnified structural diagram of A in the middle; Figure 4 A three-dimensional structural schematic diagram of the first buffer component provided in an embodiment of this utility model; Figure 5 A top view of the assembled box liner provided in an embodiment of this utility model; Figure 6 for Figure 5 A cross-sectional view along plane AA; Figure 7 for Figure 5 A magnified structural diagram of B in the diagram; Figure 8 This is a schematic diagram of the disassembled structure of the lining component provided in an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures: 1-Assembly box, 2-Inner liner box, 3-First buffer assembly, 4-Second buffer assembly, 5-Inner liner assembly, 11-Box cover, 12-Vertical slide, 31-Vertical fixing bar, 32-First elastic mechanism, 33-Vertical slider, 34-Second elastic mechanism, 41-Third telescopic spring, 42-Bearing plate, 43-Extension plate, 44-Fourth telescopic spring, 51-Lower inner liner, 52-Upper inner liner, 53-Groove, 54-Guide post, 55-Guide sleeve hole, 321-First telescopic post, 322-First connecting plate, 323-First telescopic spring, 341-Vertical side plate, 342-Second telescopic spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this utility model.

[0019] like Figure 1-8 As shown, this utility model provides an assembled box liner, including an assembly box 1. The top of the assembly box 1 is hinged with a box cover 11. The inner side wall is provided with multiple vertical sliding grooves 12, and an inner liner box 2 is slidably connected to the vertical sliding grooves 12. The inner liner box 2 is characterized in that the outer side wall of the inner liner box 2 is provided with multiple first buffer components 3 that cooperate with the vertical sliding grooves 12. The first buffer components 3 include vertical fixing strips 31 fixed to the outer side wall of the inner liner box 2. The side of the vertical fixing strips 31 away from the outer side wall of the inner liner box 2 is provided with a first elastic mechanism 32. The side of the first elastic mechanism 32 away from the vertical fixing strips 31 is provided with a vertical slider 33 that cooperates with the vertical sliding grooves 12. A second elastic mechanism 34 is also provided between the vertical slider 33 and the vertical sliding grooves 12. The extension and retraction directions of the first elastic mechanism 32 and the second elastic mechanism 34 are perpendicular to each other.

[0020] When using the prefabricated box liner, the items to be transported must be placed inside the liner box 2 beforehand, and then the entire liner box 2 is placed inside the assembly box 1, which can be directly transported. During installation, the liner box 2 is inserted into the vertical slide groove 12 of the assembly box 1 via the vertical slider 33 of the first buffer assembly 3, allowing the liner box 2 to slide up and down along the slide groove. During installation, the vertical slider 33 engages with the vertical slide groove 12 to ensure that the liner box 2 moves vertically within the assembly box 1 and will not come out.

[0021] When the assembly box 1 is subjected to external impact (such as vibration or bumps), the inner liner box 2 moves relative to the assembly box 1. At this time, the first buffer assembly 3 starts to work. The first elastic mechanism 32 absorbs the impact force on the inner liner box 2 generated along the length direction of the assembly box 1, and the second elastic mechanism 34 absorbs the impact force on the inner liner box 2 generated along the width direction of the assembly box 1. Since the extension and contraction directions of the first elastic mechanism 32 and the second elastic mechanism 34 are perpendicular, they can simultaneously handle multi-directional impacts, forming a three-dimensional buffer.

[0022] It should be noted that the first elastic mechanism 32 mentioned above absorbs the impact force on the inner liner box 2 generated along the length direction of the assembly box 1, and the second elastic mechanism 34 absorbs the impact force on the inner liner box 2 generated along the width direction of the assembly box 1. This is only an explanation of a single mechanism. In actual use, multiple sets of first elastic mechanisms 32 and multiple sets of second elastic mechanisms 34 cooperate with each other to absorb and buffer impacts from different directions.

[0023] like Figure 4 and Figure 7 As shown, the first elastic mechanism 32 further includes multiple first telescopic columns 321, one end of each first telescopic column 321 being embedded inside the vertical fixing strip 31, and the other end being fixedly installed on one side of the first connecting plate 322. Multiple first telescopic springs 323 are also installed between the first connecting plate 322 and the vertical fixing strip 31, and the vertical slider 33 is fixedly installed on the side of the first connecting plate 322 away from the first telescopic springs 323.

[0024] One end of the first telescopic column 321 is embedded inside the vertical fixing strip 31, and the other end is fixed to the first connecting plate 322. Multiple first telescopic columns 321 provide support for the inner lining box 2. A first telescopic spring 323 connects the first connecting plate 322 and the vertical fixing strip 31, forming an elastic connection that allows relative movement between them. This also assists the first telescopic columns 321 in supporting the inner lining box 2. When an impact force is applied to the inner lining box 2, the first telescopic spring 323 is compressed or stretched, thereby absorbing the impact energy.

[0025] like Figure 4 and Figure 7 As shown, the second elastic mechanism 34 further includes a plurality of vertical side plates 341 arranged perpendicularly to the first connecting plate 322. The vertical side plates 341 are disposed between the outer side wall of the vertical slider 33 and the inner side wall of the vertical slide groove 12. The vertical side plates 341 and the vertical slider 33 are elastically connected by a plurality of second telescopic springs 342.

[0026] A vertical side plate 341 is disposed between the outer wall of the vertical slider 33 and the inner wall of the vertical slide groove 12, and is elastically connected to the vertical slider 33 and the vertical side plate 341 by a second telescopic spring 342. When the inner liner box 2 is impacted in the width direction from the assembly box 1, the second telescopic spring 342 on one side of the vertical slider 33 is compressed, and the second telescopic spring 342 on the other side is stretched, thereby absorbing the impact force. The vertical side plate 341 disperses the pressure and prevents the vertical slider 33 and the vertical slide groove 12 from directly squeezing and rubbing against each other, thereby reducing wear.

[0027] like Figure 6 As shown, the outer bottom surface of the inner liner box 2 is further provided with a second buffer assembly 4. The second buffer assembly 4 includes a plurality of third telescopic springs 41 uniformly fixed at the bottom end of the inner liner box 2. The bottom end of the third telescopic spring 41 is fixedly connected to the top end of the support plate 42, and the bottom end of the support plate 42 abuts against the inner bottom surface of the assembly box 1.

[0028] The third telescopic spring 41 is evenly fixed at the bottom of the inner liner box 2, and the bearing plate 42 is connected to the bottom of the third telescopic spring 41 and contacts the inner bottom surface of the assembly box 1. When the assembly box 1 is subjected to a vertical impact (such as a drop), the third telescopic spring 41 is compressed to absorb the impact energy, and the bearing plate 42 disperses the pressure to prevent the bottom of the inner liner box 2 from directly impacting the assembly box 1.

[0029] like Figure 6 As shown, further, multiple extension plates 43 extend from the side of the support plate 42 and cooperate with the vertical fixing strips 31 one by one. Each extension plate 43 is elastically connected to the corresponding vertical fixing strip 31 by a fourth telescopic spring 44.

[0030] Multiple extension plates 43 extend from the side of the support plate 42, and each extension plate 43 is connected to the corresponding vertical fixing strip 31 via a fourth telescopic spring 44. When the inner liner box 2 shakes, the fourth telescopic spring 44 is stretched or compressed to provide lateral stability for the inner liner box 2, preventing the inner liner box 2 from tilting or swaying, thereby enhancing the overall stability of the inner liner box 2 and reducing swaying; the connection between the extension plate 43 and the vertical fixing strip 31 forms additional support points, thereby improving the installation stability of the inner liner box 2 in the assembly box 1.

[0031] like Figure 2 and Figure 8 As shown, the inner liner box 2 further includes an inner liner assembly 5 for covering and securing the transported goods. The inner liner assembly 5 includes a lower inner liner 51 located at the bottom of the inner liner box 2 and an upper inner liner 52 movably connected to the lower inner liner 51. Grooves 53 for accommodating the transported goods are provided on the opposite surfaces of the lower inner liner 51 and the upper inner liner 52, and each groove 53 is equipped with a cushioning airbag.

[0032] The transported goods are placed in the groove 53 of the lower inner liner 51, and then the upper inner liner 52 is placed on top to cover the transported goods. A cushioning airbag (not shown) is placed within the groove 53 and inflated to conform to the surface of the transported goods. During transport, the cushioning airbag absorbs vibrations and impacts, and the shape of the groove 53 restricts the movement of the transported goods, reducing internal collisions. The inner liner assembly 5 reduces the movement and friction of the transported goods within the container; the cushioning airbag's inflation level is adjustable to accommodate different transported goods.

[0033] like Figure 8 As shown, further, a guide post 54 is fixed at each of the four corners of the upper surface of the lower inner liner 51, and a guide sleeve hole 55 is provided on the upper inner liner 52 to cooperate with the guide post 54.

[0034] Align the guide sleeve hole 55 of the upper inner liner 52 with the guide post 54 of the lower inner liner 51, and press down to align the upper and lower inner liners. The cooperation between the guide post 54 and the guide sleeve hole 55 ensures accurate closure of the upper and lower inner liners, prevents misalignment, and improves the sealing and stability of the inner liner assembly 5. It also facilitates installation and positioning, reducing operational errors; the guiding structure enhances the stability of the inner liner assembly 5.

[0035] Furthermore, the inflation line of the cushioning airbag extends through the lower inner liner 51 and the upper inner liner 52 to the outside of the inner liner box 2.

[0036] The inflation line passes through the lower inner liner 51 and the upper inner liner 52 from inside the groove 53 and extends to the outside of the inner liner box 2. This allows the cushioning airbag to be inflated or deflated via an external interface, adjusting the cushioning force to suit different transportation needs. It should be noted that the structure and installation of the cushioning airbag are conventional techniques in this field and will not be described in detail here.

[0037] Furthermore, the outer surfaces of the lower inner liner 51 and the upper inner liner 52 abut against the inner surface of the inner liner box 2.

[0038] When the inner liner assembly 5 is placed into the inner liner box 2, its outer surface is in close contact with the inner wall of the inner liner box 2. This close contact prevents the inner liner assembly 5 from moving inside the inner liner box 2, ensuring that the transported goods are kept stationary.

[0039] The complete working principle and process of the assembled box liner provided by this utility model are as follows: Before use, first check the integrity of the assembly box 1 and the inner liner box 2, ensuring that the vertical slide 12 is not blocked and that the vertical slider 33 of the first buffer assembly 3 and the support plate 42 of the second buffer assembly 4 are undamaged. After confirming that everything is in order, align the inner liner box 2 with the vertical slide 12 of the assembly box 1 via the vertical slider 33 of the first buffer assembly 3, and slowly slide the inner liner box 2 down until the support plate 42 of the second buffer assembly 4 at the bottom of the inner liner box 2 contacts the inner bottom surface of the assembly box 1.

[0040] After the inner liner box 2 is installed, the lower inner liner 51 is placed inside the inner liner box 2, and then the transported item is placed in the groove 53 of the lower inner liner 51. Depending on the shape and size of the transported item, the cushioning airbag is inflated through the inflation line, causing it to expand and fit tightly against the surface of the transported item. Then, the upper inner liner 52 is placed on top of the lower inner liner 51, ensuring that the guide post 54 is inserted into the guide sleeve hole 55 to accurately align the upper and lower inner liners. The cushioning airbags in the grooves 53 of the upper and lower inner liners are further inflated to completely cover the transported item.

[0041] Finally, close and lock the cover 11 of assembly box 1 to complete the entire installation process. After installation, assembly box 1 can be loaded onto the vehicle for transportation.

[0042] During transportation, when the assembly box 1 is subjected to a horizontal impact (such as vehicle turning or lateral vibration), the inner liner box 2 moves relative to the assembly box 1. The first elastic mechanism 32 and the second elastic mechanism 34 of the first buffer assembly 3 work together. Specifically, when subjected to a horizontal impact, multiple first telescopic springs 323 on one side of the inner liner box 2 are compressed, and multiple first telescopic springs 323 on the other side are stretched. Guided by the first telescopic column 321, they work together to absorb the lateral impact force. At the same time, the second telescopic spring 342 on one side of the vertical slider 33 is compressed, and the second telescopic spring 342 on the other side is stretched, thereby absorbing the impact force. The first elastic mechanism 32 and the second elastic mechanism 34 work together to absorb both lateral and longitudinal impact forces, achieving the purpose of multi-directional buffer protection.

[0043] When the assembly box 1 is subjected to a vertical impact (such as from a bumpy road or a fall), the third telescopic spring 41 of the second buffer assembly 4 is compressed to absorb the impact energy, and the bearing plate 42 disperses the pressure, preventing the bottom of the inner liner box 2 from directly impacting the assembly box 1. The extension plate 43 is connected to the vertical fixing bar 31 via the fourth telescopic spring 44, providing lateral stability. The cushioning airbag of the inner liner assembly 5 further absorbs high-frequency vibrations and minor impacts, the groove restricts the movement of the transported goods, and the guide post 54 and guide sleeve hole 55 ensure that the upper and lower inner liners do not shift, forming an internal protective layer. Throughout the transportation process, the first buffer assembly 3, the second buffer assembly 4, and the inner liner assembly 5 work together to continuously absorb and disperse impact energy, ensuring that the transported goods remain in a stable state.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A prefabricated box liner, comprising a prefabricated box (1), wherein a box cover (11) is hinged to the top of the prefabricated box (1), and a plurality of vertical sliding grooves (12) are provided on the inner sidewall, wherein a liner box (2) is slidably connected to the vertical sliding grooves (12), characterized in that, The outer wall of the inner liner box (2) is provided with a plurality of first buffer components (3) that cooperate with the vertical slide groove (12). The first buffer component (3) includes a vertical fixing strip (31) fixed on the outer wall of the inner liner box (2). A first elastic mechanism (32) is provided on the side of the vertical fixing strip (31) away from the outer wall of the inner liner box (2). A vertical slider (33) that cooperates with the vertical slide groove (12) is provided on the side of the first elastic mechanism (32) away from the vertical fixing strip (31). A second elastic mechanism (34) is also provided between the vertical slider (33) and the vertical slide groove (12). The extension and retraction directions of the first elastic mechanism (32) and the second elastic mechanism (34) are perpendicular to each other.

2. The fabricated box liner of claim 1, wherein, The first elastic mechanism (32) includes multiple first telescopic columns (321), one end of each first telescopic column (321) is embedded inside the vertical fixing strip (31), and the other end is fixedly installed on one side of the first connecting plate (322); A plurality of first telescopic springs (323) are also installed between the first connecting plate (322) and the vertical fixing strip (31), and the vertical slider (33) is fixedly installed on the side of the first connecting plate (322) away from the first telescopic springs (323).

3. The fabricated box liner of claim 2, wherein, The second elastic mechanism (34) includes a plurality of vertical side plates (341) arranged perpendicularly to the first connecting plate (322). The vertical side plates (341) are disposed between the outer side wall of the vertical slider (33) and the inner side wall of the vertical slide groove (12). The vertical side plates (341) and the vertical slider (33) are elastically connected by a plurality of second telescopic springs (342).

4. The fabricated tank liner of claim 1, wherein, The outer bottom surface of the inner liner box (2) is provided with a second buffer assembly (4). The second buffer assembly (4) includes a plurality of third telescopic springs (41) uniformly fixed at the bottom end of the inner liner box (2). The bottom end of the third telescopic spring (41) is fixedly connected to the top end of the support plate (42). The bottom end of the support plate (42) abuts against the inner bottom surface of the assembly box (1).

5. The fabricated box liner of claim 4, wherein, The side of the bearing plate (42) also extends a plurality of extension plates (43) that cooperate with the vertical fixing strip (31) one by one. Each extension plate (43) is elastically connected to the corresponding vertical fixing strip (31) by a fourth telescopic spring (44).

6. The fabricated tank liner of claim 1, wherein, The inner liner box (2) is also provided with an inner liner assembly (5) for covering and fixing the transported goods. The inner liner assembly (5) includes a lower inner liner (51) placed at the bottom of the inner liner box (2) and an upper inner liner (52) movably connected to the lower inner liner (51). The lower inner liner (51) and the upper inner liner (52) are provided with grooves (53) for accommodating transported goods on their opposite surfaces, and each groove (53) is equipped with a buffer airbag.

7. The fabricated box liner of claim 6, wherein, A guide post (54) is fixed at each of the four corners of the upper surface of the lower inner liner (51), and a guide sleeve hole (55) is provided on the upper inner liner (52) to cooperate with the guide post (54).

8. The fabricated box liner of claim 6, wherein, The inflation line of the cushioning airbag extends through the lower liner (51) and the upper liner (52) to the outside of the liner box (2).

9. The prefabricated box liner according to claim 6, characterized in that, The outer surfaces of the lower liner (51) and the upper liner (52) abut against the inner surface of the liner box (2).