Combined packaging box

Abstract

The invention discloses a combined packaging box which is provided with boundary beams, upper opening beams and lower opening beams as frames of the combined box, a first corner module and a second corner module are used for connecting the corresponding upper box body frame and the lower box body frame, all the boundary beams belong to third glass fiber reinforced plastic edgings, all the upper opening beams belong to first glass fiber reinforced plastic edgings, and all the lower opening beams belong to second glass fiber reinforced plastic edgings. The lower opening beam belongs to the second type of glass fiber reinforced plastic edgings, when a packaging box with the size specified by a user needs to be produced, a mold does not need to be remanufactured, the rectangular size of the combined box can be adjusted only by cutting the corresponding glass fiber reinforced plastic edgings and the box plates according to requirements, machining edging sealing embedding openings and bonding and combining the edgings and the box plates through adhesives, machining time is short, cost is low, and further, production efficiency is high. The first corner module and the second corner module each comprise a middle corner block, all the middle corner blocks belong to third glass fiber reinforced plastic edgings, and therefore the depths of the upper box body and the lower box body can be adjusted after the middle corner blocks with different heights are cut.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging boxes, and in particular to a combined packaging box. Background Art

[0002] Precision instruments refer to equipment used to generate or measure precision quantities. In order to ensure the storage and transportation of instruments, specific packaging boxes are required. Not only precision instruments require specific packaging boxes, but military product packaging also has strict requirements on dustproof and waterproof sealing. It is often required that the box be filled with inert gas or a certain vacuum degree be drawn to protect the precision instruments or military products inside the box. The realization of these requirements requires that the box has sufficient rigidity and dimensional accuracy. The existing methods for making precision instrument packaging boxes are as follows: 1. FRP molding, mostly glass fiber reinforced unsaturated polyester resin FRP, with good processability, fast molding, and limited box strength; 2. FRP hand-paste box, high cost, low efficiency, and poor dimensional accuracy; 3. Thermoplastic plastic injection molding, high efficiency, and limited box strength; 4. Polyethylene rotational molding box, low efficiency, and limited box strength;

[0003] The above-mentioned packaging box production methods all have a common disadvantage, that is, boxes of various specifications require corresponding special molds. For different user-specified size requirements, changing the box size requires remaking the mold, which is not only time-consuming but also costly. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a combined packaging box.

[0005] The present invention provides a combined packaging box, comprising:

[0006] The upper box body comprises four upper opening beams arranged in a rectangular shape, each of the upper opening beams is provided with a side beam above, and also comprises four first corner modules for sealingly connecting adjacent upper opening beams and adjacent side beams;

[0007] The lower box body comprises four lower opening beams respectively arranged below the upper opening beams, the side beams are arranged below each lower opening beam, and also comprises four second corner modules for sealingly connecting adjacent lower opening beams and adjacent side beams;

[0008] A first channel is provided between the upper opening beam, the corresponding side beam and the first corner module, a second channel is provided between the four side beams, a third channel is provided between the lower opening beam, the corresponding side beam and the second corner module, the first channel, the second channel and the third channel are all sealed with box plates inside, an air valve is provided on the box plate, and the upper box body and the lower box body are close to each other through a locking mechanism to form a sealed state;

[0009] Each of the upper open beams is made by cutting the first type of glass fiber reinforced plastic edge strips, each of the lower open beams is made by cutting the second type of glass fiber reinforced plastic edge strips, and each of the side beams is made by cutting the third type of glass fiber reinforced plastic edge strips.

[0010] According to the technical solution provided in the embodiment of the present application, the first corner module includes an upper opening corner block, an intermediate corner block and a side corner block arranged in sequence from bottom to top, the upper opening corner block is used to seal and connect the adjacent upper opening beams, the side corner block is used to seal and connect the adjacent side beams, and the intermediate corner block is used to seal and connect the upper opening corner block and the side corner block.

[0011] According to the technical solution provided in the embodiment of the present application, the second corner module includes a lower opening corner block, an intermediate corner block and a side corner block arranged in sequence from top to bottom, the lower opening corner block is used to seal and connect the adjacent lower opening beams, the side corner block is used to seal and connect the adjacent side beams, and the intermediate corner block is used to seal and connect the lower opening corner block and the side corner block.

[0012] According to the technical solution provided in the embodiment of the present application, each of the intermediate corner blocks is made by cutting the third type of fiberglass edge strips.

[0013] According to the technical solution provided in the embodiment of the present application, a rectangular sealing strip is provided at the bottom end of the upper box body, a rectangular sealing groove is provided at the top end of the lower box body, a silicone sealing strip is provided in the rectangular sealing groove, and the upper box body and the lower box body are approached to each other through the locking mechanism, driving the rectangular sealing strip to be inserted into the rectangular sealing groove and pressing the silicone sealing strip downward.

[0014] According to the technical solution provided in the embodiment of the present application, a main sealing block is provided at the bottom end of each upper opening beam, and a secondary sealing block is provided at the bottom end of each upper opening corner block, and each main sealing block is combined with each secondary sealing block to form a rectangular sealing strip; a main sealing groove is provided at the top end of each lower opening beam, and a secondary sealing groove is provided at the top end of each lower opening corner block, and each main sealing groove and each secondary sealing groove is combined to form a rectangular sealing groove.

[0015] According to the technical solution provided in the embodiment of the present application, each of the upper opening beams is provided with a first side block near the corresponding upper opening corner block end, and each of the upper opening corner blocks has a first side groove on both sides thereof that matches the first side block, and each of the lower opening beams is provided with a second side block near the corresponding lower opening corner block end, and each of the lower opening corner blocks has a second side groove on both sides thereof that matches the second side block;

[0016] Each of the middle corner blocks has a connecting block at the top and bottom, each of the upper opening corner blocks has a top groove matched with the connecting block at the top, and each of the lower opening corner blocks has a bottom groove matched with the connecting block at the bottom;

[0017] Each of the edge corner blocks is surrounded by three end faces with an annular groove, the connecting block fits with the annular groove on the top end face of the edge corner block, and each of the side beams is provided with a third side block near the side face of the edge corner block, and the third side block fits with the annular groove on the side end face of the edge corner block.

[0018] According to the technical solution provided in the embodiment of the present application, the combination box also includes a plurality of positioning mechanisms for positioning each of the side beams and each of the upper opening beams with the corresponding first corner modules, and for positioning each of the side beams and each of the lower opening beams with the corresponding second corner modules.

[0019] According to the technical solution provided in the embodiment of the present application, a main fixed edge is provided on the outer edge of the bottom of the upper opening beam, and a T-shaped slot is provided on one side of the lower opening beam. A buckle lock is installed in the T-shaped slot through a square bolt group, and the buckle lock can clamp the main fixed edge to drive the upper box body and the lower box body to approach each other.

[0020] According to the technical solution provided in the embodiment of the present application, the inner walls of the first channel, the second channel and the third channel are provided with cardboard grooves, and the box panels are inserted and installed in the corresponding cardboard grooves.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] Each of the upper open beams is made by cutting the first type of glass fiber reinforced plastic edge strips, each of the lower open beams is made by cutting the second type of glass fiber reinforced plastic edge strips, and each of the side beams is made by cutting the third type of glass fiber reinforced plastic edge strips.

[0023] (1) The present invention sets side beams, upper opening beams and lower opening beams as the frame of the combined box, and uses the first corner module and the second corner module to connect the corresponding upper box frame and the lower box frame. Because all side beams belong to the third type of glass fiber reinforced plastic side strips, all upper opening beams belong to the first type of glass fiber reinforced plastic side strips, and the lower opening beams belong to the second type of glass fiber reinforced plastic side strips, when it is necessary to produce a packaging box of a user-specified size, it is not necessary to re-manufacture the mold. It is only necessary to cut the corresponding glass fiber reinforced plastic side strips and box panels according to the requirements, process the sealing joints of the side strips, and bond them with adhesives to adjust the combination. The rectangular size of the assembled box has a short processing time and low cost. Furthermore, the first corner module and the second corner module both include intermediate corner blocks, and all intermediate corner blocks belong to the third type of fiberglass side strips. Therefore, by cutting the intermediate corner blocks of different heights, the depth of the upper box body and the lower box body after assembly can be adjusted, thereby achieving the purpose of further adjusting the size. Furthermore, the upper box body and the lower box body use three types of fiberglass side strips and three types of corners as the main frame, which not only meets the purpose of rapid processing according to size, but also meets the box strength requirements required by vacuuming or filling with inert gas.

[0024] (2) A first side block, a first side groove, a second side block, a second side groove, a connecting block and an annular groove are provided for connecting the side beam, the upper opening beam and the lower opening beam to each corner piece. If only a sealing connection after plane fitting is adopted, the connection position may be easily offset during assembly, and the components may be detached after placement. However, the present invention achieves the purpose of preliminary connection by inserting each protrusion into the corresponding groove. During assembly, there is no need to manually support the components, and only needs to apply sealing glue liquid in the groove. The operation is convenient. Furthermore, a positioning mechanism is provided, and a positioning pin is inserted into the positioning hole corresponding to the protrusion and the groove to limit the movement of the protrusion along the groove, thereby improving the positioning accuracy, facilitating the user to assemble, and avoiding the failure of packaging box assembly due to position offset.

[0025] (3) A main fixing edge is provided at the bottom end of the upper opening beam, and a buckle lock is provided on the lower opening beam. The main fixing edge is buckled by the buckle lock to fix the upper box body and the lower box body. The silicone sealing strip is used to separate the inside and outside of the packaging box, which is convenient for subsequent vacuuming or filling with inert gas through the air valve. In addition, a T-slot is provided on the lower opening beam. The square nut of the square bolt group is inserted into the T-slot, and then the bolt is passed through the lock hole to connect with the nut to achieve stable installation of the buckle lock.

[0026] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 A schematic diagram of the structure of a combined packaging box provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of an exploded structure of a combined packaging box provided in an embodiment of the present application;

[0030] Figure 3 A schematic cross-sectional structure diagram of a combined packaging box provided in an embodiment of the present application;

[0031] Figure 4 for Figure 3 A partial cross-sectional view of the middle B area;

[0032] Figure 5 for Figure 3 Partial cross-sectional view of the middle C area;

[0033] Figure 6 for Figure 3A partial enlarged view of the middle A area;

[0034] Figure 7 A schematic diagram of the installation structure of a buckle lock in a combined packaging box provided in an embodiment of the present application;

[0035] Figure 8 A schematic diagram of a connection structure of a positioning hole and a positioning pin in a combined packaging box provided in an embodiment of the present application;

[0036] Fig. 9 A schematic structural diagram of edge corner blocks and side beams in a combined packaging box provided in an embodiment of the present application.

[0037] Numbers in the figure:

[0038] 1. upper opening beam; 11. first side block; 12. main sealing block; 13. main fixed edge;

[0039] 2. Side beam; 21. Third side block;

[0040] 3. lower opening beam; 31. second side block; 32. main sealing groove;

[0041] 41. first box plate; 42. second box plate; 43. air valve; 44. first handle; 45. second handle;

[0042] 5. Locking mechanism; 51. T-slot; 52. Square bolt assembly; 53. Buckle lock; 54. Silicone sealing strip;

[0043] 6. First corner module; 61. Upper opening corner block; 611. Top groove; 612. First side groove; 613. Secondary sealing block; 614. Secondary fixed edge; 62. Middle corner block; 621. Connecting block; 63. Side corner block; 631. Annular groove;

[0044] 7. Second corner module; 71. Lower opening corner block; 711. Bottom end groove; 712. Second side groove;

[0045] 81, first cardboard slot; 82, second cardboard slot; 83, third cardboard slot; 84, fourth cardboard slot; 85, fifth cardboard slot; 86, sixth cardboard slot; 87, seventh cardboard slot;

[0046] 9. Positioning mechanism; 91. Positioning hole; 92. Positioning pin. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] Example 1

[0050] Please refer to Figure 1 and Figure 2 The embodiment of the present invention provides a combined packaging box

[0051] The upper box body comprises four upper opening beams 1 arranged in a rectangular shape, each upper opening beam 1 is provided with a side beam 2, and also comprises four first corner modules 6 for sealingly connecting adjacent upper opening beams 1 and adjacent side beams 2;

[0052] The lower box body includes four lower opening beams 3 respectively arranged below each upper opening beam 1, each lower opening beam 3 is provided with a side beam 2, and also includes four second corner modules 7 for sealingly connecting adjacent lower opening beams 3 and adjacent side beams 2;

[0053] A first channel is provided between the upper opening beam 1, the corresponding side beam 2 and the first corner module 6, a second channel is provided between the four side beams 2, a third channel is provided between the lower opening beam 3, the corresponding side beam 2 and the second corner module 7, the first channel, the second channel and the third channel are all sealedly connected with a box plate inside, an air valve 43 is provided on the box plate, and the upper box body and the lower box body are close to each other through a locking mechanism 5 to form a sealed state; Figure 1 The upper box body has four side beams 2, and the lower box body also has four side beams 2, so the second channel has two, and the first channel and the third channel each have four, the box plate includes a first box plate 41 arranged in the first channel and the third channel, and a second box plate 42 arranged in the second channel, and a first handle 44 is also installed on the second box plate 42 located in the upper box body, the first handle 44 includes a lifting rod and a fixed plate, and a sealing bolt is used to penetrate the fixed plate and the second box plate 42 and extend into the interior of the upper box body, and a sealing nut is used to lock and seal, which ensures the normal use of the first handle 44 and avoids air leakage. Compared with direct gluing, the threaded fit of the sealing bolt and the sealing nut is more stable. In addition, the sealing nut is a prior art and will not be described here.

[0054] Each upper opening beam 1 is made by cutting the first type of fiberglass edge strips, each lower opening beam 3 is made by cutting the second type of fiberglass edge strips, and each side beam 2 is made by cutting the third type of fiberglass edge strips. When it is necessary to produce packaging boxes of user-specified sizes, it is only necessary to cut the corresponding fiberglass edge strips as required, thereby adjusting the rectangular size of the combination box, with short processing time and low cost.

[0055] Example 2

[0056] Based on Example 1, Figure 1 and Figure 2 , and also includes the following structure:

[0057] In some embodiments, the first corner module 6 includes an upper opening corner block 61, an intermediate corner block 62 and a side corner block 63 arranged in sequence from bottom to top, the upper opening corner block 61 is used to seal and connect the adjacent upper opening beams 1, the side corner block 63 is used to seal and connect the adjacent side beams 2, and the intermediate corner block 62 is used to seal and connect the upper opening corner block 61 and the side corner block 63.

[0058] like Figure 2 As shown, four upper open corner blocks 61 are used to first connect four upper open beams 1 arranged in a rectangular shape, and then four side beams 2 arranged in a rectangular shape are connected through side corner blocks 63, and finally four middle corner blocks 62 are used to connect the upper open corner blocks 61 and the corresponding side corner blocks 63, so that the assembly process can be divided into three parts, which is convenient for realizing assembly line type assembly and improving assembly efficiency; wherein, two middle corner blocks 62, the upper open beam 1 and the side beam 2 between the two middle corner blocks 62, form a first channel between the four, and the side surfaces of the first box plate 41 arranged inside the first channel are sealed with the inner wall of the first channel, that is, the two middle corner blocks 62 are sealed to each other near the end faces, and the upper open beam 1 and the corresponding side beam 2 are sealed to each other near the end faces, and optionally, the sealed connection can be made by sealing adhesive bonding.

[0059] In some embodiments, the second corner module 7 includes a lower opening corner block 71, an intermediate corner block 62 and a side corner block 63 arranged in sequence from top to bottom, the lower opening corner block 71 is used to seal and connect the adjacent lower opening beams 3, the side corner block 63 is used to seal and connect the adjacent side beams 2, and the intermediate corner block 62 is used to seal and connect the lower opening corner block 71 and the side corner block 63.

[0060] like Figure 2 As shown, four lower opening corner blocks 71 are used to first connect the four lower opening beams 3 arranged in a rectangular shape, and then the four side beams 2 arranged in a rectangular shape are connected through the side corner blocks 63, and finally the upper opening corner blocks 61 and the corresponding side corner blocks 63 are used to connect. In this way, the assembly process can be divided into three parts, which is convenient for realizing assembly line type assembly and improving assembly efficiency; wherein, two intermediate corner blocks 62, the lower opening beam 3 and the side beam 2 between the two intermediate corner blocks 62, form a third channel between the four, and the side surfaces of the first box plate 41 arranged inside the third channel are sealed with the inner wall of the third channel, that is, the two intermediate corner blocks 62 are sealed with each other near the end faces, and the lower opening beam 3 and the corresponding side beam 2 are sealed with each other near the end faces. Optionally, the sealed connection can be made by sealing adhesive bonding.

[0061] In some embodiments, each middle corner block 62 is made by cutting the third type of fiberglass side strips; according to the size specified by the user, on the basis of adjusting the side beams 2, the upper opening beams 1 and the lower opening beams 3, the length of the middle corner block 62 can be cut, thereby achieving the purpose of adjusting the depth of the upper box body or the lower box body. Compared with the prior art that the mold must be remade to change the box size, which is not only time-consuming but also costly, the present embodiment does not need to modify the mold, and only needs to produce the first to third types of fiberglass side strips. By cutting different lengths, the purpose of fast production and cost reduction can be achieved. Moreover, both the upper box body and the lower box body use fiberglass side strips as the main frame, which has a higher rigidity and can better meet the requirements of vacuuming or filling with inert gas, thereby solving the problem of limited box strength in the prior art.

[0062] Example 3

[0063] Based on Example 2, Figure 1 , Figure 7 and Fig. 9 , and also includes the following structure:

[0064] In some embodiments, a rectangular sealing strip is provided at the bottom of the upper box body, a rectangular sealing groove is provided at the top of the lower box body, a silicone sealing strip 54 is provided in the rectangular sealing groove, and the upper box body and the lower box body are brought closer to each other through the locking mechanism 5, driving the rectangular sealing strip to be inserted into the rectangular sealing groove and pressing the silicone sealing strip 54 downward;

[0065] like Figure 7 As shown, under the action of the locking mechanism 5, the rectangular sealing strip at the bottom of the upper box squeezes the silicone sealing strip 54 in the rectangular sealing groove at the top of the lower box, and the silicone sealing strip 54 is compressed to improve the sealing effect between the upper box and the lower box. The provision of the rectangular sealing strip and the rectangular sealing groove also facilitates the installation of the silicone sealing strip 54, as well as the quick alignment of the positions of the upper box and the lower box, thereby improving the convenience of use.

[0066] In some embodiments, a main sealing block 12 is provided at the bottom end of each upper opening beam 1, and a secondary sealing block 613 is provided at the bottom end of each upper opening corner block 61. Each main sealing block 12 and each secondary sealing block 613 are combined to form a rectangular sealing strip; each lower opening beam 3 is provided with a main sealing groove 32 at the top end, and each lower opening corner block 71 is provided with a secondary sealing groove at the top end. Each main sealing groove 32 and each secondary sealing groove are combined to form a rectangular sealing groove.

[0067] like Figure 7 and Fig. 9 As shown, the main sealing block 12 and the secondary sealing block 613 have the same cross-section and fit with the inner walls of the secondary sealing groove and the main sealing groove 32, and the rectangular sealing strip and the rectangular sealing groove will not be unable to fit due to the assembly of the upper box or the lower box.

[0068] In some embodiments, a main fixed edge 13 is provided at the bottom outer edge of the upper opening beam 1, and a T-slot 51 is provided on one side of the lower opening beam 3. A buckle 53 is installed in the T-slot 51 through a square bolt group 52. The buckle 53 can clamp the main fixed edge 13 and drive the upper box body and the lower box body to move closer to each other.

[0069] like Figure 7 As shown, the square nut in the square bolt group 52 is stuck in the inner wall of the T-slot 51 and cannot be rotated. It can only be moved along the T-slot 51 to adjust the position. Then, the bolts in the square bolt group 52 are passed through the buckle lock 53 and connected with the square nut thread to achieve the installation of the buckle lock 53. The square nut is moved along the T-slot 51 to adjust the position of the buckle lock 53, so as to better achieve the purpose of locking. In addition, in order to improve the overall appearance of the combined box, a secondary fixed edge 614 with the same cross-sectional shape as the main fixed edge 13 is set at the bottom of the upper opening corner block 61, as shown in FIG. Fig. 9 As shown, the edge of the main fixed side 13 is prevented from being exposed and causing damage or other adverse situations; in the prior art, the buckle lock 53 includes a hook plate that clamps the main fixed side 13, a rotating mechanism that drives the hook plate to move, and a connecting rod connecting the hook plate and the rotating shaft in the rotating mechanism. Optionally, the connecting rod is set to a screw rod, that is, the connecting rod has a thread on the outside, one end is rotatably connected to the hook plate, and the other end passes through the rotating shaft and is threadedly connected to the rotating shaft. The position of the hook plate can be adjusted by rotating the connecting rod, and the snap-fit ​​clearance of the box cover can be adjusted; further, a second handle 45 can be installed on the lower opening beam 3 where the buckle lock 53 is not installed, so that users can carry the box body. The installation method is also to insert the square nut of the square bolt group 52 into the inner wall of the T-slot 51. Because it cannot rotate, it can only move along the T-slot 51 to adjust the position, and then use the bolts in the square bolt group 52 to pass through the second handle 45 and connect with the square nut thread.

[0070] Example 4

[0071] Based on Example 3, Figure 1 , Figures 3 to 9 , and also includes the following structure:

[0072] In some embodiments, each upper opening beam 1 is provided with a first side block 11 near the end of the corresponding upper opening corner block 61, and each upper opening corner block 61 has a first side groove 612 on both sides thereof that matches the first side block 11; each lower opening beam 3 is provided with a second side block 31 near the end of the corresponding lower opening corner block 71, and each lower opening corner block 71 has a second side groove 712 on both sides thereof that matches the second side block 31;

[0073] Each middle corner block 62 has a connecting block 621 at its top and bottom, each upper opening corner block 61 has a top groove 611 that fits with the connecting block 621 at its top, and each lower opening corner block 71 has a bottom groove 711 that fits with the connecting block 621 at its bottom.

[0074] Each side corner block 63 is surrounded by three end surfaces with an annular groove 631, the connecting block 621 is matched with the annular groove 631 on the top surface of the side corner block 63, and each side beam 2 is provided with a third side block 21 near the side of the side corner block 63, and the third side block 21 is matched with the annular groove 631 on the side end surface of the side corner block 63.

[0075] like Figures 3 to 6 As shown, for ease of understanding, a first corner module 6 is described, the top and bottom ends of the middle corner block 62 are boss structures, namely, the connecting block 621, and the corresponding side corner block 63 is a groove structure, namely, the annular groove 631, and the corresponding upper opening corner block 61 is also a groove structure, namely, the top groove 611; similarly, the lower opening corner block 71 of the second corner module 7 is also a groove structure, namely, the bottom groove 711; thereby achieving rapid assembly of the first corner module 6 and the second corner module 7;

[0076] like Figures 3 to 5 As shown, the upper opening corner block 61 is L-shaped, and has a groove structure on the side close to the adjacent upper opening beam 1, that is, there are two first side grooves 612, and both ends of the upper opening beam 1 have a boss structure, that is, two first side blocks 11. Because the upper opening beams 1 are arranged in a rectangular shape and are sealed with the upper opening corner block 61, the first side blocks 11 of the two upper opening beams 1 are respectively inserted into the two first side grooves 612 of the same upper opening corner block 61 to realize the assembly of the upper opening beam 1 and the upper opening corner block 61. Similarly, the second side block 31 is inserted into the second side groove 712 to realize the assembly of the lower opening beam 3 and the lower opening corner block 71, and then the third side block 21 is inserted into the annular groove 631 to realize the assembly of the side beam 2 and the side corner block 63.

[0077] In some embodiments, when cutting the corresponding fiberglass edge strips according to size, it is necessary to reserve the size of each boss structure, and then use relevant equipment to process the corresponding boss structure. Such processing equipment and processing methods are prior art and will not be described in detail. Optionally, when assembling the above-mentioned components, glue is coated on the surface of the boss structure, and after inserting it into the groove structure, the purpose of sealing connection is achieved by solidifying the glue.

[0078] In some embodiments, the combination box also includes a plurality of positioning mechanisms 9 for positioning each side beam 2 and each upper opening beam 1 with the corresponding first corner module 6, and for positioning each side beam 2 and each lower opening beam 3 with the corresponding second corner module 7.

[0079] like Figure 8 and Fig. 9As shown, the positioning mechanism 9 includes positioning holes 91 provided on the mutually approaching end faces between each boss structure and the corresponding groove structure. A positioning pin 92 is adhesively bonded between the corresponding two positioning holes 91. For example, positioning holes 91 are provided on the mutually approaching end faces of the annular groove 631 and the third side block 21, and the positioning pins 92 are respectively inserted into the two positioning holes 91. The structures of the two positioning holes 91 between the remaining boss structures and the corresponding groove structures are similar and will not be elaborated here. Additionally, during assembly, glue can be applied to one end of the positioning pin 92 first and inserted into the positioning hole 91 on the boss structure. Then, glue can be directly applied to the other end of the positioning pin 92 and the boss structure, and adhesively bonded in a sealed manner with the corresponding groove structure and the corresponding positioning hole 91.

[0080] In some embodiments, card board grooves are provided on the inner walls of the first channel, the second channel, and the third channel, and the box boards are inserted and installed in the corresponding card board grooves.

[0081] Refer to Figure 1 and Figure 8 As shown, the side beam 2 has an L-shaped cross-section, and first card board grooves 81 are provided at both L-shaped ends of the side beam 2. The side corner block 63 has three end faces, each of which is a quarter arc shape, and its annular groove 631 also has three end faces in a quarter arc shape. Second card board grooves 82 are provided at the edges of the adjacent end faces. The first card board grooves 81 and the second card board grooves 82 combine to form a rectangular card board groove on the inner wall of the second channel. The second box board 42 is inserted into the interior of this card board groove. During assembly, first, two side corner blocks 63 are used to connect three side beams 2 to form a "冂" shape, and then two side corner blocks 63 and the remaining one side beam 2 are used to form a "一" shape. The first box board 41 is inserted along the two first card board grooves 81 on the adjacent sides of the "冂" shape, and then the "一" shaped component is connected to the "冂" shaped component to complete the assembly of the upper frame of the upper box body. Similarly, the lower frame of the lower box body can also be assembled in this way. And during the assembly process, glue is applied to the edge of the first box board 41, and after the glue solidifies, the purpose of sealed connection is achieved.

[0082] Further, refer to Figure 3 and Figure 4, the top of the upper open beam 1 is also provided with a third cardboard groove 83, and the cross-section of the middle corner block 62 is a quarter arc shape, and the end faces on both sides thereof are provided with a fifth cardboard groove 85. The cross-section of the upper open corner block 61 is also a quarter arc shape, and the first side groove 612 is provided on the two side surfaces of the upper open corner block 61. Because the top groove 611 and the first side groove 612 are provided, the fourth cardboard groove 84 is provided at the adjacent edges of the two. The two fifth cardboard grooves 85, the two third cardboard grooves 83, the two second cardboard grooves 82 and the two fourth cardboard grooves 84 are combined to form a rectangular cardboard groove of the inner wall of the first channel. The corresponding second box plate 42 is inserted into the cardboard groove, and the two fifth cardboard grooves 85 and the two third cardboard grooves 83 clamp the corresponding second box plate 42 edge, and the two second cardboard grooves 82 and the two fourth cardboard grooves 84 clamp the corresponding second box plate 42 edge. In addition, its assembly method is similar to that of the first box plate 41, which will not be repeated here;

[0083] Further, refer to Figure 3 and Figure 5 A sixth card slot 86 is provided at the bottom end of the lower opening beam 3, and a seventh card slot 87 is provided between the bottom end slot 711 and the second side slot 712 of the lower opening corner block 71. The two fifth card slots 85, the two sixth card slots 86, the two seventh card slots 87 and the two second card slots 82 form a rectangular card slot on the inner wall of the third channel, and the clamping method and assembly method are similar to the operation method of the above-mentioned second box plate 42, which will not be repeated here.

[0084] The preparation method of the packaging box of the present invention:

[0085] Step 1: using a FRP pultrusion process to prepare a first FRP edge strip, a second FRP edge strip, and a third FRP edge strip;

[0086] Step 2: According to the user's customized required size, cut the first glass fiber reinforced plastic side strip to form four upper open beams 1, cut the second glass fiber reinforced plastic side strip to form four lower open beams 3, cut the third glass fiber reinforced plastic side strip to form eight side beams 2 and eight middle corner blocks 62, and reserve processing areas at both ends of each frame member;

[0087] Step 3: Use a milling machine to process the processing area so that both ends of each frame member form a boss structure;

[0088] Step 4: Use a compression molding process to produce eight side corner blocks 63, four upper opening corner blocks 61 and four lower opening corner blocks 71, and the ends of the above corner pieces are adapted to the groove structure corresponding to the boss structure;

[0089] Step 5: According to the user's customized size, the finished fiberglass plate is cut to form the first box plate 41 and the second box plate 42, and the inner walls of the first channel, the second channel and the third channel are provided with card grooves, and the edges of the box plates can be inserted into the corresponding card grooves;

[0090] Step 6: Assemble the frame pieces, corner pieces and box panels. Before assembly, install the buckle 53 on the T-slot 51. During assembly, apply polyurethane adhesive on the surface of each positioning pin 92, the boss structure of each frame piece and the edge of each box panel. After the adhesive is cured, the box structure is formed.

[0091] Step 7: Insert the silicone sealing strip 54 into the rectangular sealing groove, and adjust the tightness of the buckle 54 to ensure the sealing between the upper box body and the lower box body.

[0092] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0093] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0094] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A combined packaging box, characterized in that: include: The upper box body comprises four upper opening beams (1) arranged in a rectangular shape, each upper opening beam (1) being provided with a side beam (2) above, and also comprises four first corner modules (6) for sealingly connecting adjacent upper opening beams (1) and adjacent side beams (2); The lower box body comprises four lower opening beams (3) respectively arranged below each of the upper opening beams (1), each of the lower opening beams (3) being provided with the side beam (2) below, and also comprises four second corner modules (7) for sealingly connecting adjacent lower opening beams (3) and adjacent side beams (2); A first channel is provided between the upper open beam (1), the corresponding side beam (2) and the first corner module (6); a second channel is provided between the four side beams (2); a third channel is provided between the lower open beam (3), the corresponding side beam (2) and the second corner module (7); the first channel, the second channel and the third channel are all sealedly connected to a box plate, an air valve (43) is provided on the box plate, and the upper box body and the lower box body are brought close to each other through a locking mechanism (5) to form a sealed state; Each of the upper open beams (1) is made by cutting the first type of glass fiber reinforced plastic side strips, each of the lower open beams (3) is made by cutting the second type of glass fiber reinforced plastic side strips, and each of the side beams (2) is made by cutting the third type of glass fiber reinforced plastic side strips.

2. The combined packaging box according to claim 1, characterized in that: The first corner module (6) comprises an upper opening corner block (61), an intermediate corner block (62) and a side corner block (63) arranged in sequence from bottom to top, the upper opening corner block (61) being used for sealingly connecting the adjacent upper opening beams (1), the side corner block (63) being used for sealingly connecting the adjacent side beams (2), and the intermediate corner block (62) being used for sealingly connecting the upper opening corner block (61) and the side corner block (63).

3. The combined packaging box according to claim 2, characterized in that: The second corner module (7) comprises a lower opening corner block (71), an intermediate corner block (62) and a side corner block (63) arranged in sequence from top to bottom, the lower opening corner block (71) being used for sealingly connecting the adjacent lower opening beam (3), the side corner block (63) being used for sealingly connecting the adjacent side beam (2), and the intermediate corner block (62) being used for sealingly connecting the lower opening corner block (71) and the side corner block (63).

4. The combined packaging box according to claim 3, characterized in that: Each of the middle corner blocks (62) is made by cutting the third type of glass fiber reinforced plastic edge strip.

5. The combined packaging box according to claim 4, characterized in that: A rectangular sealing strip is provided at the bottom end of the upper box body, a rectangular sealing groove is provided at the top end of the lower box body, a silicone sealing strip (54) is provided in the rectangular sealing groove, and the upper box body and the lower box body are moved closer to each other through the locking mechanism (5), driving the rectangular sealing strip to be inserted into the rectangular sealing groove and pressing the silicone sealing strip (54) downward.

6. The combined packaging box according to claim 5, characterized in that: A main sealing block (12) is provided at the bottom end of each upper opening beam (1), and a secondary sealing block (613) is provided at the bottom end of each upper opening corner block (61). Each main sealing block (12) and each secondary sealing block (613) are combined to form a rectangular sealing strip; a main sealing groove (32) is provided at the top end of each lower opening beam (3), and a secondary sealing groove is provided at the top end of each lower opening corner block (71). Each main sealing groove (32) and each secondary sealing groove are combined to form a rectangular sealing groove.

7. The combined packaging box according to claim 6, characterized in that: Each of the upper opening beams (1) is provided with a first side block (11) near the end of the corresponding upper opening corner block (61), and both sides of each of the upper opening corner blocks (61) are provided with a first side groove (612) that matches with the first side block (11); each of the lower opening beams (3) is provided with a second side block (31) near the end of the corresponding lower opening corner block (71), and both sides of each of the lower opening corner blocks (71) are provided with a second side groove (712) that matches with the second side block (31); The top and bottom of each of the intermediate corner blocks (62) are provided with a connecting block (621); the top of each of the upper opening corner blocks (61) is provided with a top groove (611) that fits with the connecting block (621); and the bottom of each of the lower opening corner blocks (71) is provided with a bottom groove (711) that fits with the connecting block (621); Each of the edge corner blocks (63) is provided with an annular groove (631) around the three end surfaces, the connecting block (621) is matched with the annular groove (631) on the top end surface of the edge corner block (63), and each of the side beams (2) is provided with a third side block (21) close to the side surface of the edge corner block (63), and the third side block (21) is matched with the annular groove (631) on the side end surface of the edge corner block (63).

8. The combined packaging box according to claim 7, characterized in that: The combination box further comprises a plurality of positioning mechanisms (9) for positioning each of the side beams (2) and each of the upper opening beams (1) with the corresponding first corner module (6), and for positioning each of the side beams (2) and each of the lower opening beams (3) with the corresponding second corner module (7).

9. The combined packaging box according to claim 8, characterized in that: The outer edge of the bottom of the upper open beam (1) is provided with a main fixed edge (13), and a side surface of the lower open beam (3) is provided with a T-shaped slot (51). A buckle lock (53) is installed in the T-shaped slot (51) through a square bolt group (52). The buckle lock (53) can clamp the main fixed edge (13) to drive the upper box body and the lower box body to move closer to each other.

10. The combined packaging box according to claim 9, characterized in that: The inner walls of the first channel, the second channel and the third channel are provided with cardboard grooves, and the box plates are inserted and installed in the corresponding cardboard grooves.

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