阅读说明：本技术 一种变尺寸环保型包装箱及其使用方法 (Variable-size environment-friendly packaging box and using method thereof ) 是由 孙军艳 陈智瑞 杨国瑞 杨伊辰 于 2019-12-27 设计创作，主要内容包括：本发明公开了一种变尺寸环保型包装箱及其使用方法：包装箱包括箱体框架、前侧面板及后侧面板；所述箱体框架包括顶部面板、底部面板、左侧支撑面板和右侧支撑面板,顶部面板及底部面板均包括两个通过滑轨相连的拼接面板；前侧面板及后侧面板均包括主板和拼接板,主板以及拼接板分别与箱体框架相连；箱体框架通过主板进行封闭,或者,箱体框架的前侧及后侧通过主板和拼接板进行封闭,箱体框架的顶部及底部通过填补顶部拼接面板及底部拼接面板进行封闭。本发明不仅实现了可多次拆卸、重复使用及便于回收的功能,而且箱体空间可以通过拉伸对原始形态的箱体体积进行扩大,使得包装箱可以灵活改变箱体尺寸,从而为不同规格的商品提供包装。(The invention discloses a variable-size environment-friendly packaging box and a use method thereof, wherein the variable-size environment-friendly packaging box comprises the following steps: the packing box comprises a box body frame, a front side panel and a rear side panel; the box body frame comprises a top panel, a bottom panel, a left side supporting panel and a right side supporting panel, wherein the top panel and the bottom panel respectively comprise two spliced panels connected through a sliding rail; the front side panel and the rear side panel respectively comprise a main board and a splice plate, and the main board and the splice plate are respectively connected with the box body frame; the box frame is sealed through the mainboard, perhaps, the front side and the rear side of box frame seal through mainboard and splice plate, and the top and the bottom of box frame seal through filling top concatenation panel and bottom concatenation panel. The invention not only realizes the functions of repeated disassembly and reuse and convenient recovery, but also expands the volume of the box body in the original shape by stretching the box body space, so that the size of the box body can be flexibly changed for the packing box, thereby providing packages for commodities with different specifications.)

1. The variable-size environment-friendly packaging box is characterized in that: the packing box comprises a box body frame, a front side panel and a rear side panel; the box body frame comprises a top panel (9), a bottom panel (3), a left side supporting panel (10) and a right side supporting panel (6), wherein the top panel (9) and the bottom panel (3) respectively comprise a first splicing panel connected with the left side supporting panel (10) through a hinge, a second splicing panel connected with the right side supporting panel (6) through a hinge, and a panel stretching slide rail (14) respectively connected with the first splicing panel and the second splicing panel; the front side panel and the rear side panel respectively comprise a main board and a splice plate, and the main boards and the splice plates of the front side panel and the rear side panel are respectively connected with the box body frame; the box frame seals through the mainboard of front side board and rear panel, perhaps, the front side of box frame and rear side seal through the mainboard and the splice plate of front side board and rear panel, and the top of box frame and bottom seal through filling top concatenation panel (5) and bottom concatenation panel (11) that will set up on the box frame and correspond between first concatenation panel and the second concatenation panel in the box frame after the process is stretched.

2. The environment-friendly packing box with variable size as claimed in claim 1, wherein: the slide rail (14) is embedded in the corresponding first splicing panel and the second splicing panel, and the first splicing panel and the second splicing panel can move a certain distance in opposite directions from the butt joint position of the first splicing panel and the second splicing panel along the slide rail (14).

3. The environment-friendly packing box with variable size as claimed in claim 1, wherein: the slide rail (14) is arranged between the first splicing panel and the second splicing panel in multiple groups.

4. The environment-friendly packing box with variable size as claimed in claim 1, wherein: and the top splicing panel (5) and the bottom splicing panel (11) are respectively provided with a fixed groove for connecting a corresponding panel stretching slide rail (14).

5. The environment-friendly packing box with variable size as claimed in claim 1, wherein: the front side panel and the rear side panel are connected with the box body frame through hinges and L-shaped clamping groove structures (12).

6. The environment-friendly packing box with variable size as claimed in claim 5, wherein: the L-shaped clamping groove structure (12) comprises L-shaped bosses arranged on the top panel (9) and the bottom panel (3) and L-shaped grooves arranged on the front side panel and the rear side panel, and the L-shaped bosses and the L-shaped grooves can be correspondingly embedded.

7. The environment-friendly packing box with variable size as claimed in claim 5, wherein: the angle-fixable hinges (1) are adopted between corresponding panels in the box body frame and between the box body frame and the front side panel and the rear side panel, each angle-fixable hinge (1) comprises a mandrel fixing body which is arranged in a segmented mode, bosses which are arranged at intervals or grooves which are arranged at intervals and correspond to the bosses in shape are arranged on the end face of each section of mandrel fixing body, and the mandrel fixing bodies with the bosses and the mandrel fixing bodies with the grooves are arranged in a staggered mode.

8. The environment-friendly packing box with variable size as claimed in claim 1, wherein: each panel of the packing box is made of polypropylene materials.

9. The use method of the variable-size environment-friendly packaging box as claimed in claim 1, wherein the variable-size environment-friendly packaging box comprises the following steps: the method comprises the following steps:

1) before the packing box is used, the box body frame in the folded state is restored to the state of being capable of packing articles;

2) after the step 1), directly loading the articles into the box body frame, or loading the articles into the box body frame after the box body frame is stretched through the relative movement of the first splicing panel and the second splicing panel and the corresponding panel stretching slide rail (14);

3) the main boards of the front side panel and the rear side panel are used for sealing a box body frame filled with articles, or the front side panel, the rear side panel, the top splicing panel (5) and the bottom splicing panel (11) are used for sealing a stretched box body frame filled with articles;

4) after the packaging box is used, opening the main boards of the front side panel and the rear side panel, or opening the front side panel, the rear side panel, the top splicing panel (5) and the bottom splicing panel (11); the case frame is then folded back by the hinges.

10. The method of claim 9, wherein: the front side panel and the rear side panel are folded on the box body frame through hinges; the top splicing panel (5) and the bottom splicing panel (11) are furled on the box body frame through fixing grooves which are arranged on the top splicing panel (5) and the bottom splicing panel (11) and used for connecting corresponding panel stretching sliding rails (14).

Technical Field

The invention belongs to the field of packaging boxes, and relates to a size-variable environment-friendly packaging box.

Background

Along with the continuous increase of commodity circulation traffic volume, commodity parcel volume also increases on the same scale, and traditional packing box uses corrugated paper, foam as the material, though with low costs, but moisture resistance is poor, and corrugated box's side pressure intensity reduces along with the increase of humidity under the unchangeable condition of temperature, and the resilience is little, can not satisfy recoverable, recyclable design requirement far away. Moreover, the adhesive tape is used as a sealing tool, so that the adhesive tape cannot provide sufficient protection for commodities, and meanwhile, the packing box is easy to damage in transportation and unsealing, has poor durability, cannot be used for the second time basically and has low recycling rate. At present, a great amount of packaging garbage is produced by the waste packaging boxes, and the waste caused by the waste generates serious problems of resource and environmental pollution. The design of the recyclable and reusable packing box has positive significance for reducing logistics risk and cost and improving logistics service quality.

Chinese patent CN209127167U discloses a foldable recycled packaging box, which adopts a flexible waterproof material with certain hardness, and forms a cuboid box body with a hollow structure by folding and combining through setting folding lines and crease lines when in use; when not needed, the material can be restored to a block shape. Although the problem of recycling of the packaging box is solved to a certain extent, the size of the specific packaging box is invariable, the utilization efficiency is low, and the recyclable packaging meeting the size requirement cannot be provided for commodities of different sizes.

Disclosure of Invention

The invention aims to provide a variable-size environment-friendly packaging box and a using method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a variable-size environment-friendly packing box comprises a box body frame, a front side panel and a rear side panel; the box body frame comprises a top panel, a bottom panel, a left side supporting panel and a right side supporting panel, wherein the top panel and the bottom panel respectively comprise a first splicing panel connected with the left side supporting panel through a hinge, a second splicing panel connected with the right side supporting panel through a hinge, and panel stretching slide rails respectively connected with the first splicing panel and the second splicing panel; the front side panel and the rear side panel respectively comprise a main board and a splice plate, and the main boards and the splice plates of the front side panel and the rear side panel are respectively connected with the box body frame; the box frame seals through the mainboard of front side board and rear side board, perhaps, the front side of box frame and rear side seal through the mainboard and the splice plate of front side board and rear side board, and the top of box frame and bottom seal through filling the top concatenation panel and the bottom concatenation panel that will set up on the box frame and correspond between first concatenation panel and the second concatenation panel in the box frame after the process is stretched.

Preferably, the slide rail is embedded in the corresponding first splicing panel and the second splicing panel, and the first splicing panel and the second splicing panel can move a certain distance in opposite directions from the butt joint position of the first splicing panel and the second splicing panel along the slide rail.

Preferably, the slide rail is divided into a plurality of groups and arranged between the first splicing panel and the second splicing panel.

Preferably, the top splicing panel and the bottom splicing panel are respectively provided with a fixing groove for connecting the corresponding panel stretching slide rail.

Preferably, the front side panel and the rear side panel are connected with the box body frame through hinges and L-shaped clamping groove structures.

Preferably, the L-shaped slot structure includes L-shaped bosses disposed on the top panel and the bottom panel and L-shaped grooves disposed on the front panel and the rear panel, and the L-shaped bosses and the L-shaped grooves are correspondingly engaged.

Preferably, the angle-fixable hinges are respectively adopted between corresponding panels (between the top panel and the left and right side supporting panels, and between the bottom panel and the left and right side supporting panels) in the box body frame and between the box body frame and the front side panel and the rear side panel, the angle-fixable hinges comprise mandrel fixing bodies which are arranged in a segmented manner, bosses which are arranged at intervals or grooves which are arranged at intervals and correspond to the shape of the bosses are arranged on the end surface of each section of the mandrel fixing body, and the mandrel fixing bodies which are provided with the bosses and the mandrel fixing bodies which are provided with the grooves are arranged in a staggered manner.

Preferably, each panel of the packing box is made of polypropylene materials.

The use method of the variable-size environment-friendly packaging box comprises the following steps:

1) before the packing box is used, the box body frame in the folded state is restored to the state of being capable of packing articles;

2) after the step 1), directly loading the articles into the box body frame, or stretching the box body frame through the relative movement of the first splicing panel and the second splicing panel and the corresponding panel stretching slide rail and then loading the articles into the box body frame;

3) the main boards of the front side panel and the rear side panel are used for sealing a box body frame with articles in the box body frame, or the front side panel, the rear side panel, the top splicing panel and the bottom splicing panel are used for sealing a stretched box body frame with articles in the box body frame;

4) after the packaging box is used, opening the main boards of the front side panel and the rear side panel, or opening the front side panel, the rear side panel, the top splicing panel and the bottom splicing panel; then the box body frame is folded again through the hinge to be stored and arranged.

Preferably, the front side panel and the rear side panel are folded (rotated) on the box body frame through hinges.

Preferably, the top splicing panel and the bottom splicing panel are folded (connected) on the box body frame through fixing grooves which are formed in the top splicing panel and the bottom splicing panel and used for being connected with the corresponding panel stretching sliding rails.

The invention has the beneficial effects that:

the size-variable environment-friendly packing box provided by the invention not only realizes the functions of repeated disassembly and reuse and convenient recovery, but also expands the volume of the box body in the original form through stretching the space of the box body, so that the size of the box body can be flexibly changed, and the packing box can be used for packing articles with different specifications; and the mechanical reliability of the environment-friendly packing box with the variable size is verified through finite element simulation. The invention not only improves the utilization rate of the storage space, but also reduces the recovery cost, and can obviously improve the recycling times of the packing box.

Furthermore, the multiple groups of sliding rails arranged at the top and the bottom of the packing box can ensure that the force borne by the packing box is more uniformly dispersed, reduce stress concentration and solve the problem that the assembled packing box with variable size is easy to crush and disintegrate due to stress.

Furthermore, the L-shaped clamping groove structure and the hinge structure adopted by the invention can effectively reduce the use of packaging consumables such as adhesive tapes and the like, reduce the logistics cost, improve the packaging efficiency and facilitate the improvement of the reuse rate of the packaging box.

Drawings

FIG. 1 is a schematic view of the structure of the packing box of the embodiment of the invention in an original form;

FIG. 2 is a schematic diagram of the packing box in the size changing process according to the embodiment of the present invention;

FIG. 3 is a schematic structural view of the packing box of the embodiment of the present invention after being changed in size;

FIG. 4 is a schematic structural view of the folded packing box of the embodiment of the present invention;

FIG. 5 is a schematic view of the front panel main board of the packing box in the embodiment of the present invention;

FIG. 6 is a schematic view of a top panel of a packing box in an embodiment of the present invention in a stretched state;

FIG. 7 is a schematic view showing the opening/closing process of the front and rear panel splicing plates and the right support panel of the packing box according to the embodiment of the present invention;

FIG. 8 is a schematic diagram of an L-shaped card slot structure;

FIG. 9 is a schematic view of a fixable angle hinge;

in the figure: 1-a hinge with a fixable angle; 2-front panel main board; 3-a bottom panel; 4-front side panel splice plate; 5-splicing the panels at the top; 6-right side support panel; 7-rear side panel splice plate; 8-rear panel main board; 9-a top panel; 10-left side support panel; 11-bottom splice panel; 12-L type card slot structure; 13-a groove; 14-sliding rail.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Structural design of box body

The structure of the variable-size environment-friendly packing box in the original form is shown in figure 1, and the variable-size environment-friendly packing box comprises a front side panel, a rear side panel, a left side supporting panel 10, a right side supporting panel 6, a top panel 9, a bottom panel 3, a top splicing panel 5 and a bottom splicing panel 11; the top panel 9 and the bottom panel 3 have the same structure and comprise two spliced panels with the same size; the front panel and the rear panel have the same structure, wherein the front panel comprises a front panel main board 2 and a front panel splice plate 4 connected with the front side of a right side supporting panel 6 through a hinge 1 capable of fixing an angle, the rear panel comprises a rear panel main board 8 and a rear panel splice plate 7 connected with the rear side of the right side supporting panel 6 through the hinge 1 capable of fixing an angle, the front and back side panels are sealed by the corresponding front and back side panel main boards 2 and 8, the front and rear panel splicing plates 4 and 7 are turned to the right side supporting panel 6 (i.e. folded) through the hinge, a space is left between the folded front panel splicing plate 4 and the rear panel splicing plate 7, so that the top splice panel 5, which may be connected to the right support panel 6, is placed and the bottom splice panel 11 is placed on the left support panel 10 in the same manner.

The dimension-changed structure of the dimension-changed environment-friendly packing box is shown in figures 2 and 3, two spliced parts of a bottom panel 3 and a top panel 9 are moved and split from the middle position of the original shape of the box body through a plurality of groups of slide rails 14 (consisting of a plurality of parallel strip-shaped bodies) embedded in the bottom panel 3 and the top panel 9, so that the box body is transversely stretched and stretched for a certain distance (the maximum moving distance can be controlled by the slide rails), the top spliced panel 5 and the bottom spliced panel 11 are disassembled and respectively fixed on the slide rails 14 exposed at the top and the bottom of the box body (through grooves corresponding to the positions of the slide rails on the top spliced panel 5 and the bottom spliced panel 11 are used for completing the sealing of the top and the bottom of the dimension-changed box body, then the front side panel spliced plate 4 rotates towards the front side of the box body and is spliced with the front side panel main plate 2, and with the rear panel splice plate 7 to the box rear side direction rotation and splice mutually with rear panel mainboard 8, simultaneously with front panel mainboard 2, 4 upper portion edges of front panel splice plate and rear panel mainboard 8, 7 lower part edges of rear panel splice plate, utilize the L type draw-in groove structure 12 of design to realize with top panel 9 and bottom panel 3 correspond the connection and fixed of edge to accomplish the front side and the closure of rear side to the box behind the variable dimension.

The structure of the variable-size environment-friendly packing box in the folding and recycling process is shown in figure 4, on the basis of the original shape of the box body, the front panel main board 2 is rotated to the bottom panel 3, and the rear panel main board 8 is rotated to the top panel 9. Then be used for connecting the hinge structure of left side support panel 10 and right side support panel 6 (can adopt above-mentioned but fixed angle hinge 1) through top panel 9 and 3 both sides of bottom panel, can fold the corresponding box structure of packing box (back side board mainboard 8, top panel 9 and left side support panel 10 etc. are piled up together, front side board 2, bottom panel 3 and right side support panel 6 and before, back side board splice plate 4, 7 etc. are piled up together), the volume size of folding back packing box is littleer, conveniently accomodate and arrange in order.

Referring to fig. 5, the size-variable environment-friendly packing box of the present invention has the same structure of the front panel main board 2 and the rear panel main board 8, the front panel main board 2 is connected to the left splice panel of the bottom panel 3 through the angle-fixable hinge 1, the rear panel main board 8 is connected to the left splice panel of the top panel 9 through the angle-fixable hinge 1, and the L-shaped slot structure 12 is disposed at the entire upper edge of the front panel main board 2 and the entire lower edge of the rear panel main board 8.

Referring to fig. 6, the top panel 9 and the bottom panel 3 of the environment-friendly packing box with variable size according to the present invention have the same structure, and the length of the box body is adjusted by the slide rail 14. In the top panel 9, the front side edges of two detachable (space adjustable) spliced panels with the same size connected and supported by a slide rail 14 and the corresponding side edges of the top spliced panel 5 are respectively provided with an L-shaped clamping groove structure 12, and the spliced panels on the left side and the right side are correspondingly connected with a left supporting panel 10 and a right supporting panel 6 by a hinge 1 capable of fixing the angle. In the bottom panel 3, the rear side edges of two detachable (space adjustable) spliced panels with the same size which are connected and supported by a slide rail 14 and the corresponding side edges of the bottom spliced panel 11 are respectively provided with an L-shaped clamping groove structure 12, and the spliced panels on the left side and the right side are connected with a left supporting panel 10 and a right supporting panel 6 by a hinge 1 capable of fixing angles.

Referring to fig. 7, the left support panel 10 and the right support panel 6 of the environment-friendly variable-size packaging box have the same structure, raised lines with the interval and the width equal to those of the slide rails 14 are designed on the surfaces of the left support panel 10 and the right support panel 6, through grooves 13 are formed between the raised lines, and when the box body is in an original shape, the bottom splice plate 11 and the top splice plate 5 can be respectively connected and fixed on the surfaces of the left support panel 10 and the right support panel 6 corresponding to each other in the same installation mode as that of the slide rails 14.

Referring to fig. 8, the L-shaped slot structure 12 of the environment-friendly packing box with variable size according to the present invention specifically includes two structural design forms, one of which is an "L" shaped groove designed at the edge of the panel (taking the front side panel main board 2 as an example), and the other is an "L" shaped boss designed at the edge of the panel (taking the top panel 9 as an example), and the "L" shaped groove and the "L" shaped boss are mutually embedded to realize the splicing and sealing of the corresponding panels (e.g., the top panel 9 and the front side panel main board 2).

Referring to fig. 9, in the variable-size environment-friendly packaging box of the present invention, the fixable-angle hinge 1 includes a mandrel and a plurality of sections of mandrel fixing bodies (cylindrical), each section of mandrel fixing body is respectively designed with two fan-shaped bosses (evenly spaced, i.e. 180 degrees) or four fan-shaped grooves (evenly spaced, i.e. 90 degrees) at two hinge-connecting end surfaces thereof, the mandrel fixing bodies of which the end surfaces are arranged at intervals on one panel (e.g. top panel 9) are designed as the mandrel fixing bodies of the fan-shaped bosses and the end surfaces are arranged at intervals on the other panel (e.g. right support panel 6) are designed as the mandrel fixing bodies of the fan-shaped grooves and are assembled into a complete mandrel fixing structure, and then the mandrel penetrates through the structure, so as to form the fixable. The hinge 1 with the fixable angle can realize relative rotation between panels, and can realize fixation of the rotating position between the panels by embedding the fan-shaped boss and the fan-shaped groove when rotating to three angles of 90 degrees, 180 degrees and 270 degrees; wherein, when the panel is rotatory 90, fan-shaped boss cooperatees with fan-shaped recess and accomplishes the angle fixed, and the box can be realized folding and support, guarantees the stability of box, and when the rotatory 270 of face, fan-shaped boss cooperatees with fan-shaped recess and accomplishes the angle fixed, can accomplish the panel concatenation after the box is tensile.

(II) design of packing box dimension and specification

The basic requirement of the size design of the packing box is to reduce the material usage as far as possible on the premise of meeting the mechanical strength and reducing the bearing deformation. Length, width, height, wall thickness and fillet radius are the most fundamental elements in the dimensioning. Three aspects of the design are mainly concerned: firstly, determining the length, width, height, wall thickness and fillet radius size, and generally following the principle of uniform wall thickness; secondly, the size of the content in the packing box is considered; thirdly, the method is based on the international standardized modulus size, is coordinated with other links of the logistics system and is adaptive to the sizes of other logistics.

The international organization for standardization determines the basic modulus dimensions as 600 x 400 mm. Through statistics, the length of the box body commonly used in the current e-commerce center is mainly concentrated between 100mm and 300mm, the width is mainly concentrated between 100mm and 200mm, and the height is mainly concentrated between 100mm and 200 mm. In order to meet the application requirement of an e-commerce center, the invention adopts a modulus segmentation method to determine the serial sizes, and according to the size range, the current modulus design is selected from L/2, L/3, L/4, L/5, L/6, W/2, W/3, W/4 and W/5; namely, the basic length sizes are respectively 300mm, 200mm, 150mm, 120mm and 100 mm; the width dimensions are 200mm, 132mm, 100mm and 80mm respectively. According to the structure design of the packaging box, the length dimension after stretching is equal to the basic length dimension +1/3 multiplied by the width dimension, so the width dimension is rounded, and the finally determined width dimensions are 180mm, 120mm, 90mm and 60mm respectively. For example, in the case of a width of 180mm, the corresponding stretched length dimensions are 360mm, 260mm, 210mm, 180mm, 160mm, respectively. The height is in accordance with the width dimension. The general range of wall thickness is 1 ~ 3mm, and fillet radius size general value is close with the wall thickness.

(III) Box reliability verification

In order to verify whether the strength and the deformation of the packing box meet the requirements or not, under the environment of Windows10.0, a three-dimensional model of the packing box is established by using NX11.0, and the basic appearance size range is as follows: the length is 100-300 mm, the width and the height are 80-200 mm, and the wall thickness and the radius of a fillet are 1-3 mm. And importing the three-dimensional model into ANSYS Workbench software for finite element simulation analysis.

The parameters for the finite element simulation analysis were set as follows: the elastic modulus of the polypropylene is 1300MPa, and the Poisson ratio is 0.4103; the shear strength is 34.5MPa, and the density is 0.92g/cm³The tensile strength is 29MPa, the compressive strength is 45MPa, and the bending strength is 50-58.8 MPa. Setting the size of the grid: 2mm, dividing a grid mainly consisting of hexahedrons, wherein the number of the grids is 37814, and the number of nodes is 96129. The top surface of the packing box is taken as the most dominant stress surface (in practice, the packing box is usually stacked for storage), the load setting is based on the average stacking load of 0.015MPa in the transportation process, defined as pressure, the loading is carried out on the top surface, and the full constraint is arranged on the lower surface of the box body.

Adopt above-mentioned finite element simulation analysis, packing box design size all satisfies the mechanical properties requirement, and through adjustment length, width, height and wall thickness and fillet radius, the simulation is found: when the length, width, height, wall thickness and fillet radius size increase gradually, the packing box maximum stress and displacement reduce gradually. When the length, width and height are increased to 260mm, 180mm and 180mm, respectively, and the wall thickness and corner radius are increased to 2.5mm, the reduction of stress and displacement is no longer significant, and considering that the design should minimize the size to save materials, it is considered that the packing box of this size (260mm x 180mm) has the best overall performance. Thus, the original dimensions were determined to be 200mm X180 mm. Simulation results show that: the maximum stress of the box body under the size is 3.14MPa, the maximum strain is 0.003, and the maximum deformation is 1.66 mm. As the maximum stress (3.14MPa) is far less than the tensile strength of 29MPa of the polypropylene material, the reliability of the structure and dimension design result of the packing box is higher.

(IV) methods of use

Step 1, rotating the corresponding angle-fixable hinge 1 on the packaging box by 90 degrees, and opening the folded and recovered box structure into an original-form box structure with a regular quadrilateral longitudinal section.

And 2, judging whether the volume of the original-form box body meets the volume of the goods to be packaged, if so, performing the step 3, and if not, namely the volume of the goods is larger than the volume of the original-form box body, performing the step 4.

And 3, loading the goods into the packaging box in the original form through the front side or the rear side panel of the box body, and respectively connecting the front side panel main board 2 and the rear side panel main board 8 with the top panel 9 and the bottom panel 3 through the L-shaped clamping groove structures 12 to finish packaging.

Step 4, two detachable splicing panels of the top panel 9 and the bottom panel 3 are oppositely slid to fixed positions through the slide rails 14, the top splicing panel 5 and the bottom splicing panel 11 are respectively taken down from the right supporting panel 6 and the left supporting panel 10 and are installed on the slide rails 14 exposed outside, goods are loaded in through the front side or the rear side panel of the box body, the front side panel main board 2 is rotated to a sealing position, the front side panel splicing plate 4 is rotated 270 degrees towards the front side panel main board 2 through the angle-fixable hinge 1, then the connection between the front side panel main board 2 and the front side panel splicing plate 4 and the top panel 9 and the top splicing panel 5 is realized through the L-shaped clamping groove structure 12, the rear side panel main board 8 is rotated to a corresponding sealing position, the rear side panel splicing plate 7 is rotated 270 degrees towards the rear side panel main board 8 through the angle-fixable hinge 1, and the connection of the rear side panel main board 8 and the rear side panel splicing plate 7 with the bottom panel 3 and the bottom splicing panel 11 is realized through the L-shaped clamping groove structure 12, and then the packaging can be completed.

And 5, after the packaging box is used, rotating the hinge 1 with the corresponding angle capable of being fixed on the box body by 90 degrees for the non-stretched packaging box, and directly folding and recycling the box body, or firstly recovering the stretched packaging box into the original shape and then folding and recycling the box body.

(V) major advantages of the invention

(1) Green environment protection

The packing box has the characteristics of being detachable, recyclable and reusable, solves the problem of low repeated utilization rate of the packing box, and accords with the concepts of green development and sustainable development.

(2) High reliability

The packing box is made of a panel made of polypropylene (PP) materials, has high impact resistance, moisture resistance and mechanical property, is tough, resists corrosion of various organic solvents and acid and alkali, and has a good protection effect on articles.

(3) Good durability

The packing box adopts a lock catch (for example, an L-shaped clamping groove structure) to package a product, has no damage to the packing box and can improve the repeated use times.

(4) Good storage property

This packing box realizes the folding of box through the angle of connection that changes between the panel, is favorable to reducing the time that the packing was accomodate to shared storage space after reducing the packing and retrieving has also reduced the recovery cost when having improved recovery efficiency, makes the packing box have higher use value.

(5) Through a modulus segmentation method and real statistical analysis, the variable module and the standardized size are determined, and the packing box is favorably applied to the logistics industry.