Flexible folding hinge box

Abstract

The invention discloses a flexible folding hinge box, and belongs to the technical field of folding hinge boxes, the flexible folding hinge box comprises a lower box plate, the front end of the lower box plate is connected with the bottom end of a front box plate through a lower box sealing structure, the rear end of the lower box plate is connected with the bottom end of a rear box plate through a flexible hinge, and the left end and the right end of the lower box plate are connected with the bottom ends of side box plates through protective edge strips; the tops of the side box plates, the front box plate and the rear box plate are connected with an upper box plate, the front end of the upper box plate is connected with the top end of the front box plate through an upper box sealing structure, the rear end of the upper box plate is connected with the top end of the rear box plate through a flexible hinge, and the left end and the right end of the upper box plate are connected with the top ends of the side box plates through protective edge strips. All parts of the flexible folding hinge box are made of single bio-based materials, so that the materials can be recycled by 100%, the problems of pollution caused by different materials and high transportation cost of empty boxes are thoroughly solved, the occupied area is reduced after the flexible folding hinge box is folded and stored, and the space utilization efficiency and the production efficiency of the box body in the storage and transportation process are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of folding hinge boxes, and more specifically, relates to a flexible folding hinge box. Background Art

[0002] SF's "π-BOX" recycling box is an upgraded version of its first-generation "Feng-BOX". It adopts a modified polypropylene (PP) environmental protection composite material (with a recyclability rate of over 98%) and a honeycomb board fully sealed structure design. The strength of the box body is enhanced through a laser seamless welding process, and the edge is rounded to avoid scratching. At the same time, it has waterproof, moisture-proof, and anti-corrosion properties, and is suitable for cold chain transportation and the packaging requirements of precision instruments.

[0003] The "Qingliu Box" jointly developed by JD Logistics and Zhilu Technology uses a food-grade recycled polypropylene (PP) material, replaces the tape with a mechanical locking sealing system, and cooperates with a tearable electronic waybill to achieve anti-theft (the box can only be unlocked by destroying the waybill). The single-box recycling usage times reach more than 50 times, and the carbon emissions are reduced by 60% through the reverse logistics system.

[0004] China Post's intelligent recycling express box integrates an electronic ink screen digital waybill and an NB-IoT Internet of Things module, can track the logistics status in real time, and uses a biometric intelligent lock to achieve "one person, one code" authorized opening of the box. Combined with blockchain technology, it records the logistics node data to prevent package swapping during transportation.

[0005] The built-in self-developed ultra-high-frequency RFID chip of the Cainiao Green B2B recycling box supports the full life cycle management of "one box, one code" (the chip reading accuracy rate ≥ 99.9%). It is specially designed for industrial transportation such as home appliances and auto parts. The box body can bear a weight of 150 kg and is compatible with the standardized pallet intermodal transportation system.

[0006] The existing recycling boxes have not been fully folded, occupy a large amount of storage space during transportation, the manufacturing process is too complex, the production efficiency is low, and it is difficult to achieve full biodegradation. Summary of the Invention

[0007] The main purpose of the present invention is to provide a flexible folding hinge box to solve the problems in the above background art.

[0008] According to a first aspect of the present invention, there is provided a flexible folding hinge box, including a lower box plate, the front end of the lower box plate is connected to the bottom end of the front box plate through a lower sealing box structure, the rear end of the lower box plate is connected to the bottom end of the rear box plate through a flexible hinge, both the left and right ends of the lower box plate are connected to the bottom ends of the side box plates through protective edge strips, the top of the side box plates, the front box plate and the rear box plate is connected with an upper box plate, the front end of the upper box plate is connected to the top end of the front box plate through an upper sealing box structure, the rear end of the upper box plate is connected to the top end of the rear box plate through a flexible hinge, both the left and right ends of the upper box plate are connected to the top ends of the side box plates through protective edge strips, the lower box plate, the lower sealing box structure, the flexible hinge, the front box plate, the rear box plate, the protective edge strip, the side box plate, the upper box plate and the upper sealing box structure are all made of a single bio-based material.

[0009] In a specific embodiment of the present invention, the flexible hinge includes a bendable flexible strip, U-shaped grooves for connecting the box plates are symmetrically arranged at both ends of the flexible strip, the flexible strip and the U-shaped grooves are integrally arranged, and the thickness of one side of the U-shaped groove is greater than that of the other side of the U-shaped groove.

[0010] In a specific embodiment of the present invention, a plurality of uniformly distributed anti-cracking grooves are arranged on the flexible strip, and a matching boss is arranged in the middle of the U-shaped groove.

[0011] In a specific embodiment of the present invention, rounded corner structures are arranged at both ends of the top of the protective edge strip, a folding part is arranged at one end of the protective edge strip, and a folding groove is arranged between the folding part and the protective edge strip.

[0012] In a specific embodiment of the present invention, a first matching groove and a second matching groove are arranged on the protective edge strip, the first matching groove is connected to the side box plate, and the second matching groove is connected to the lower box plate or the upper box plate.

[0013] In a specific embodiment of the present invention, the upper sealing box structure includes an upper lock cover plate and an upper lock groove plate, the upper lock cover plate and the upper lock groove plate are fixedly connected, an upper lock tongue plate is fixedly installed on the top of the upper lock cover plate, upper tongue hook parts are symmetrically arranged at the bottom of the upper lock tongue plate, an upper assembly hole is opened in the middle of the upper lock cover plate, a hand buckle that can move up and down is installed on the upper assembly hole, wedge-shaped grooves are symmetrically arranged on both sides of the hand buckle, upper hook lock parts are movably installed on the wedge-shaped grooves, and the other ends of the upper hook lock parts are buckled with the upper tongue hook parts.

[0014] In a specific embodiment of the present invention, an upper assembly groove for installing the hand buckle is arranged in the middle of the upper lock groove plate, a first through hole is further arranged on the upper assembly groove, and an upper limit groove for cooperating with the upper hook lock part is arranged on the upper lock groove plate.

[0015] In a specific embodiment of the present invention, an upper mounting groove is provided in the middle of the handcuff. An upper second through hole is provided in the upper mounting groove. A sub-lock tongue and a sub-lock ring are installed in the upper mounting groove. One end of the sub-lock tongue passes through the upper second through hole and the upper first through hole and is clamped with the end face of the upper lock groove plate. The sub-lock ring is rotatably connected to the sub-lock tongue.

[0016] In a specific embodiment of the present invention, the lower sealing box structure includes a lower lock tongue plate. A lower lock cover plate and a lower lock groove plate are fixedly connected to the top of the lower lock tongue plate. The lower lock cover plate and the lower lock groove plate are fixedly connected. A movable lower hook lock member is arranged between the lower lock cover plate and the lower lock groove plate. A lower hook lock hook is arranged at the bottom of the lower hook lock member. A lower lock tongue hook that cooperates with the lower hook lock hook is arranged at the top of the lower lock tongue plate. The lower hook lock hook and the lower lock tongue hook are movably buckled.

[0017] In a specific embodiment of the present invention, a lower assembly hole is provided on one side of the lower lock groove plate away from the lower lock cover plate. A switch convex block is provided in the middle of the lower hook lock member. The switch convex block passes through the lower assembly hole and moves in the lower assembly hole.

[0018] At least one of the following advantages or beneficial effects is achieved by one of the technical solutions in the above technical solutions of the present invention:

[0019] This flexible folding hinge box unfolds with the rear box plate as the center. The two side box plates are folded towards the rear box plate through flexible hinges. Then the upper box plate and the lower box plate are folded towards the rear box plate through flexible hinges. Finally, the front box plate is fixedly placed at the rear box plate, so that the occupied area after folding and storage becomes smaller, improving the space utilization efficiency and production efficiency of the box during storage and transportation. At the same time, all components of the box are made of a single bio-based material, without metal fittings or tapes. When recycling, it can be directly crushed and reprocessed, and the material is 100% recyclable, completely solving the pain points of different material pollution and high empty box transportation costs. The flexible hinge can achieve a 180° smooth bending of the box without metal parts, reducing the occupancy of storage and transportation space and avoiding the mechanical wear problem of traditional hinges. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the drawings and embodiments;

[0021] Figure 1 is a schematic structural diagram of a flexible folding hinge box in an embodiment of the present invention;

[0022] Figure 2 is an exploded structural diagram of a flexible folding hinge box in an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a flexible hinge in an embodiment of the present invention;

[0024] Figure 4 It is a schematic structural view of a protective edge strip in an embodiment of the present invention;

[0025] Figure 5 It is an exploded structural schematic view of an upper sealing box structure in an embodiment of the present invention;

[0026] Figure 6 It is a schematic structural view of an upper locking cover plate in an embodiment of the present invention;

[0027] Figure 7 It is a schematic structural view of a hand buckle in an embodiment of the present invention;

[0028] Figure 8 It is a schematic structural view of a sub-lock tongue in an embodiment of the present invention;

[0029] Figure 9 It is a schematic structural view of an upper sealing box structure without an upper locking cover plate in an embodiment of the present invention;

[0030] Figure 10 It is an exploded structural schematic view of a lower sealing box structure in an embodiment of the present invention;

[0031] Figure 11 It is a schematic structural view of a lower locking cover plate in an embodiment of the present invention. Detailed implementation manners

[0032] The following details the implementation manners of the present invention. The examples of the implementation manners are shown in the drawings, where the same or similar reference numerals always represent the same or similar elements or elements with the same or similar functions. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0033] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0035] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, or a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or a connection capable of mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements, indirect communication or the interaction relationship between two elements.

[0037] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0038] Refer to Figures 1 to 11 As shown, a flexible folding hinge box is provided, including a lower box plate 1. The front end of the lower box plate 1 is connected to the bottom end of the front box plate 4 through a lower box sealing structure 2. The rear end of the lower box plate 1 is connected to the bottom end of the rear box plate 5 through a flexible hinge 3. Both the left and right ends of the lower box plate 1 are connected to the bottom ends of the side box plates 7 through protective edge strips 6. The top of the side box plates 7, the front box plate 4 and the rear box plate 5 are connected with an upper box plate 8. The front end of the upper box plate 8 is connected to the top end of the front box plate 4 through an upper box sealing structure 9. The rear end of the upper box plate 8 is connected to the top end of the rear box plate 5 through a flexible hinge 3. Both the left and right ends of the upper box plate 8 are connected to the top ends of the side box plates 7 through protective edge strips 6. The lower box plate 1, the lower box sealing structure 2, the flexible hinge 3, the front box plate 4, the rear box plate 5, the protective edge strip 6, the side box plates 7, the upper box plate 8 and the upper box sealing structure 9 are all made of a single bio-based material.

[0039] In this embodiment, the thickness of each box board is 2 mm. Each box board is formed by high temperature and high pressure using bio-based materials (non-grain and non-wood materials such as straw, reed, bagasse, etc.). Different from the existing PP plastic boxes, the biomass-based box board is completely biodegradable and easy to recycle. The flexible hinge 3 is integrally formed with an elastic material (such as bio-based TPU), without the metal connectors of traditional hinges, reducing the overall weight. Compared with traditional recycling boxes, the flexible hinge 3 can achieve a 180° smooth bending of the box body without metal parts, reducing the occupation of storage and transportation space. Moreover, the integral forming with elastic materials avoids the mechanical wear problem of traditional hinges. The flexible material can achieve seamless connection of the box body, and its waterproof and moisture-proof performance is better than that of traditional folding boxes, which is suitable for cold chain and precision instrument transportation. During the folding process, there are no sharp edges, avoiding scratching of operators and meeting industrial safety standards. Other box-sealing structures also use a single bio-based material, without metal fittings or tapes. During recycling, it is directly crushed and remade, and the material is 100% recyclable, completely solving the pain points of different material pollution and high empty box transportation costs.

[0040] Preferably, first assembly notches 10 for connecting with the flexible hinge 3 are provided at the rear ends of the upper box board 8 and the lower box board 1. Second assembly notches 20 are provided at the front ends of the upper box board 8 and the lower box board 1. The second assembly notches 20 are connected to the upper box-sealing structure 9 or the lower box-sealing structure 2. The first assembly notches 10 assist in positioning and assembling the box board with the flexible hinge 3 or the protective edge strip 6, ensuring tight and accurate connection between components. The second assembly notches 20 facilitate the assembly of the upper box-sealing structure 9 and the lower box-sealing structure 2 for the upper and lower box boards respectively, playing a key role in positioning and auxiliary connection during the assembly process.

[0041] Further, the length of the second assembly notch 20 is greater than that of the first assembly notch 10 to distinguish the front and rear ends of the upper and lower box boards, thereby quickly completing the assembly.

[0042] Side assembly notches 71 for connecting with the flexible hinge 3 are provided at both the left and right ends of the side box board 7 to ensure tight and accurate connection between components.

[0043] Upper assembly grooves 41 for connecting with the upper box-sealing structure 9 are provided at the top of the front box board 4. Lower assembly grooves 42 for connecting with the lower box-sealing structure 2 are provided at the bottom of the front box board 4. Fourth assembly notches 43 for connecting with the flexible hinge 3 are provided at both the left and right ends of the front box board 4. Fifth assembly notches 51 for connecting with the flexible hinge 3 are provided at both the upper and lower ends of the rear box board 5. Sixth assembly notches 52 for connecting with the flexible hinge 3 are provided at both the left and right ends of the rear box board 5. The upper assembly grooves 41, the lower assembly grooves 42, the fourth assembly notches 43, the fifth assembly notches 51, and the sixth assembly notches 52 play a key role in positioning and auxiliary connection during the assembly process, ensuring tight and accurate connection between components.

[0044] It unfolds with the rear box panel 5 as the center. The two side box panels 7 are folded towards the rear box panel 5 through the flexible hinge 3, and then the upper box panel 8 and the lower box panel 1 are folded towards the rear box panel 5 through the flexible hinge 3. Finally, the front box panel 4 is fixedly placed at the rear box panel 5, reducing the occupied area after folding and storage. This flexible folding hinge box uses the flexible hinge 3 to connect each box panel, realizing a foldable design. It can be folded into a flat shape, saving storage and transportation space, which greatly improves the efficiency of warehousing, transportation, and return transportation, and reduces unnecessary space occupation.

[0045] In an embodiment of the present invention, the flexible hinge 3 includes a bendable flexible strip 32. At both ends of the flexible strip 32, U-shaped grooves 31 for connecting box panels are symmetrically arranged. The flexible strip 32 and the U-shaped grooves 31 are integrally provided, and the thickness of one side of the U-shaped groove 31 is greater than that of the other side of the U-shaped groove 31.

[0046] Furthermore, a number of uniformly distributed anti-cracking grooves 321 are provided on the flexible strip 32 to prevent cracks from appearing on the flexible strip 32 during bending, thus preventing damage to the flexible strip 32 and extending its service life. At the same time, it can be bent at any angle. A mating boss 311 is provided in the middle of the U-shaped groove 31. The mating boss 311 can be connected in a snap-fit manner with the corresponding notch on the box panel. This design is not prone to breakage, facilitating positioning assembly and limiting, and ensuring the integrity of the box panel.

[0047] The main function of the U-shaped groove 31 is to position and assemble with other box panels to ensure that the connection between components is tight and accurate. The thickened side of the U-shaped groove 31 can be used as an anti-drop structure. After the flexible hinge 3 is assembled, it is integrated with the box panel, wrapping the entire box body. The thickened side of the U-shaped groove 31 can more effectively protect the box body when subjected to impact or dropping, realizing the design concept of integrating structure and function.

[0048] In an embodiment of the present invention, rounded corner structures are provided at both ends of the top of the protective edge strip 6. A folding portion 61 is provided at one end of the protective edge strip 6, and a folding groove 62 is provided between the folding portion 61 and the protective edge strip 6.

[0049] Furthermore, a first mating groove 63 and a second mating groove 64 are provided on the protective edge strip 6. The first mating groove 63 is connected to the side box panel 7, and the second mating groove 64 is connected to the lower box panel 1 or the upper box panel 8.

[0050] The protective edge strip 6 can be made of biodegradable flexible material, which not only meets the environmental protection requirements but also has good buffering performance. The rounded corner structure can effectively prevent collisions, reduce stress concentration, and significantly reduce the impact force when the box is dropped or impacted, thus better protecting the items inside the box. The folding groove 62 is provided to ensure that when the box is folded, the folding part 61 (rounded corner structure) does not interfere with the rear box panel 5, avoiding affecting the overall folding performance of the box. It not only achieves the functions of anti-drop and anti-impact but also ensures the gap sealing at the connection of the box panels of the flexible hinge box, and at the same time solves the interference problem during folding, realizing the design concept of integrating structure and function.

[0051] The first mating groove 63 and the second mating groove 64 are closely fitted with each box panel to ensure that when the box is closed, the positions of the lower box panel 1 or the upper box panel and the side box panel 7 are accurate. This design not only improves the stability of the overall structure of the box but also enhances its protective performance, providing strong protection for the safety of the items during transportation.

[0052] In an embodiment of the present invention, the upper sealing structure 9 includes an upper locking cover plate 91 and an upper locking groove plate 92, which are fixedly connected. The top of the upper locking cover plate 91 is fixedly installed with an upper locking tongue plate 93. The bottom of the upper locking tongue plate 93 is symmetrically provided with upper tongue hook parts 931. The middle of the upper locking cover plate 91 is provided with an upper assembly hole 911. A hand buckle 94 that can move up and down is installed on the upper assembly hole 911. Wedge-shaped grooves 941 are symmetrically arranged on both sides of the hand buckle 94. An upper hook locking part 95 is movably installed on the wedge-shaped grooves 941, and the other end of the upper hook locking part 95 is buckled with the upper tongue hook part 931.

[0053] In an embodiment of the present invention, the middle of the upper locking groove plate 92 is provided with an upper assembly groove 925 for installing the hand buckle 94. The upper assembly groove 925 is also provided with an upper first through hole 9251. The upper locking groove plate 92 is provided with an upper limit groove 922 for cooperating with the upper hook locking part 95.

[0054] In an embodiment of the present invention, the middle of the hand buckle 94 is provided with an upper installation groove 942. An upper second through hole 9421 is provided in the upper installation groove 942. A sub-lock tongue 96 and a sub-lock ring 97 are installed in the upper installation groove 942. One end of the sub-lock tongue 96 passes through the upper second through hole 9421 and the upper first through hole 9251 and is clamped with the end face of the upper locking groove plate 92. The sub-lock ring 97 is rotatably connected to the sub-lock tongue 96. The sub-lock tongue 96 is self-locked with the upper locking groove plate 92 to improve safety.

[0055] In this embodiment, when the hand buckle 94 moves downward, it drives the two upper hook locking members 95 to move to both sides through the wedge-shaped groove 941, achieving the unlocking function; when the hand buckle 94 moves upward, it drives the two upper hook locking members 95 to move towards the middle through the wedge-shaped groove 941, and the upper hook locking member 95 is engaged with the upper tongue hook portion 931 to achieve the function of locking the upper locking tongue plate 93. The upper assembly hole 911 is a specific design dedicated to installing the hand buckle 94, ensuring that the hand buckle 94 can be firmly attached after installation and is not easily loosened or detached during use, guaranteeing the safety and convenience of use. This structure can complete self-locking without using a metal spring, reducing the dependence on the metal spring, extending the service life, and reducing the maintenance cost.

[0056] The upper assembly groove 925 is used to install the hand buckle 94, and its size and shape are precisely adapted to the assembly surface of the hand buckle 94. The upper limit groove 922 is a groove that matches the assembly surface of the upper hook locking member 95, providing an accurate position and structural support for the installation of the upper hook locking member 95.

[0057] In this embodiment, several upper positioning bosses 912 are provided on the side of the upper locking cover plate 91 close to the upper locking groove plate 92, and upper positioning grooves 921 that cooperate with the upper positioning bosses 912 are provided on the side of the upper locking groove plate 92 close to the upper locking cover plate 91. The upper positioning bosses 912 and the upper positioning grooves 921 cooperate with each other, and when the upper locking cover plate 91 and the upper locking groove plate 92 are assembled, they can play a role in precise positioning, facilitating the assembly of the two.

[0058] A first box-opening groove 913 is provided at the middle position of the top of the upper locking cover plate 91, and a second box-opening groove 932 is provided at the middle position of the bottom of the upper locking tongue plate 93. The first box-opening groove 913 corresponds to the second box-opening groove 932 to form a box-opening groove. The first box-opening groove 913 and the second box-opening groove 932 form a box-opening groove, reserving a suitable position for finger box-opening. When it is necessary to open the flexible folding hinge box, the finger can apply force to the first box-opening groove 913 to easily achieve the opening operation.

[0059] Elastic bump blocks 9422 are symmetrically arranged on the upper installation groove 942, and the sub-lock ring 97 abuts against the elastic bump blocks 9422. The elastic bump blocks 9422 act as a lever fulcrum. When the sub-lock tongue 96 is inserted into the upper second through hole 9421 and the upper first through hole 9251 to achieve the locking function, after being assembled with the sub-lock ring 97, considering the ergonomic design, the sub-lock ring 97 uses the elastic bump blocks 9422 as a fulcrum to form a lever. When the sub-lock tongue 96 is pressed, the sub-lock ring 97 will automatically tilt up, facilitating the subsequent operation of pulling open the sub-lock structure.

[0060] One end of the sub-lock tongue 96 is symmetrically provided with a barb portion 961. The barb portion 961 is engaged with the end face of the upper lock groove plate 92. The other end of the sub-lock tongue 96 is provided with a mounting hole 962 that is rotatably connected to the sub-lock ring 97. The middle of the sub-lock tongue 96 is provided with an assembly block 963. The end face of the assembly block 963 is in contact with the inner wall of the upper second through hole 9421. The barb portion 961 is a V-shaped barb, and the corner is designed to be relatively weak. To ensure that the anti-theft opening buckle can be easily damaged during normal use, and the degree of damage is thorough enough to eliminate the possibility of secondary use, thus ensuring the security of the item; the sub-lock ring 97 is provided with a rotating shaft, and the rotating shaft cooperates with the mounting hole 962 to jointly form an anti-theft opening mechanism, providing more reliable security protection for the item. The assembly block 963 can accurately position the insertion depth of the sub-lock tongue 96, so that the sub-lock tongue is in the best position when it plays a role, further improving the anti-theft opening effect.

[0061] On both sides of the bottom of the hand buckle 94, upper cantilever buckles 943 are provided. On both sides of the bottom of the upper lock groove plate 92, a first limit groove 923 and a second limit groove 924 are provided. The first limit groove 923 is arranged above the second limit groove 924. The upper cantilever buckle 943 can be arranged in the first limit groove 923 or the second limit groove 924. The upper cantilever buckle 943 and the first limit groove 923 and the second limit groove 924 are assembled and cooperate to form a limit structure, so as to realize the switching between the two working states of unlocking and locking. Both the first limit groove 923 and the second limit groove 924 are designed as arc shapes. The main function of the first limit groove 923 is to limit the hand buckle 94 during work, and cooperate with the upper cantilever buckles 943 on both sides of the hand buckle 94, so that when in the locked state, the upper cantilever buckles 943 on both sides of the hand buckle 94 can be inserted into the first limit groove 923, playing a positioning role while strengthening the lock box ability of the sealing box structure and avoiding automatic locking due to gravity; the arc radian of the second limit groove 924 is larger, and its function is to play a positioning role when in the unlocked state. When the upper cantilever buckle 943 is inserted into the second limit groove 924, it represents successful unlocking. At the same time, the strain and stress of the material are released in time, so that the upper cantilever buckle 943 is in an unloaded state, increasing the fatigue performance and extending the service life. At the same time, the larger arc on the upper side ensures that the lock box can be easier, reducing the force required for the hand buckle 94 to move up and avoiding jamming.

[0062] One end of the upper hook lock member 95 is provided with an upper locking hook portion 951, and the other end of the upper hook lock member 95 is provided with a wedge portion 952. The wedge groove 941 has a structure with an opening inclined upward. The wedge portion 952 is movably arranged in the wedge groove 941. The upper locking hook portion 951 is engaged with the upper tongue hook portion 931. The wedge portion 952 and the wedge groove 941 cooperate with each other. By using the double inclined plane structure, the vertical movement of the hand buckle 94 is used to drive the upper hook lock member 95 to perform a two-way horizontal movement of outward or inward push. This design reduces the use of different materials such as springs and fully meets the structural and functional requirements of unlocking and locking.

[0063] After the upper locking cover plate 91 and the upper locking groove plate 92 are fixedly connected, a first connection groove 98 is provided at the bottom. A second connection groove 99 is provided on the upper locking tongue plate 93. Both the first connection groove 98 and the second connection groove 99 are used for connecting the box plates.

[0064] In an embodiment of the present invention, the lower sealing box structure 2 includes a lower locking tongue plate 21. A lower locking cover plate 22 and a lower locking groove plate 23 are fixedly connected to the top of the lower locking tongue plate 21. The lower locking cover plate 22 and the lower locking groove plate 23 are fixedly connected. A movable lower hook lock member 24 is arranged between the lower locking cover plate 22 and the lower locking groove plate 23. A lower hook lock hook 241 is arranged at the bottom of the lower hook lock member 24. A lower locking tongue hook 211 cooperating with the lower hook lock hook 241 is arranged at the top of the lower locking tongue plate 21. The lower hook lock hook 241 is movably engaged with the lower locking tongue hook 211.

[0065] In an embodiment of the present invention, a lower assembly hole 231 is provided on one side of the lower locking groove plate 23 away from the lower locking cover plate 22. A switch convex block 242 is provided in the middle of the lower hook lock member 24. The switch convex block 242 passes through the lower assembly hole 231 and is movable in the lower assembly hole 231.

[0066] In this embodiment, the lower locking cover plate 22 and the lower locking groove plate 23 are fixedly arranged on the top of the lower locking tongue plate 21, and the lower locking cover plate 22 and the lower locking groove plate 23 are fixedly connected. When locking is required, the lower hook lock member 24 is moved to drive the lower hook lock hook 241 to move, so that the lower hook lock hook 241 approaches the lower locking tongue hook 211 until the two are engaged and connected, and the locking can be completed. When unlocking is required, the lower hook lock member 24 is moved to make the lower hook lock hook 241 away from the lower locking tongue hook 211, and the unlocking can be completed. The structure is simple, the operation is easy, and the self-locking can be completed without a spring structure, which prolongs the service life and reduces the maintenance cost.

[0067] The lower assembly hole 231 reserves a hole position for the switch convex block 242 of the lower hook lock member 24, and at the same time is the position where the button for opening or closing this mechanism is located. And the switch is deliberately designed on the back and inside the box when sealing the box, and can only be opened from the inside, ensuring the sealing performance of the flexible folding hinge box.

[0068] In this embodiment, several protrusions 232 are provided on one side of the lower lock groove plate 23 close to the lower lock cover plate 22. Several lower positioning grooves 233 are formed on the protrusions 232. The lower positioning grooves 233 are mainly used to cooperate with the lower positioning bosses 221 of the lower lock cover plate 22 for fixation. When the lower lock cover plate 22 and the lower lock groove plate 23 are assembled, they can play a role in precise positioning, facilitating the assembly of the two.

[0069] The several protrusions 232 include a first protrusion 2321, a second protrusion 2322, a third protrusion 2323, and a fourth protrusion 2324. The first protrusion 2321 is arranged above the third protrusion 2323. The third protrusion 2323 is symmetrically arranged on both sides of the fourth protrusion 2324. The second protrusion 2322 is arranged on one side of the third protrusion 2323. The length of the first protrusion 2321 is greater than the sum of the lengths of the second protrusion 2322, the third protrusion 2323, and the fourth protrusion 2324. The second protrusion 2322 and the third protrusion 2323 are both symmetrically arranged on both sides of the fourth protrusion 2324.

[0070] Two first limiting grooves 3211 are provided at the bottom of the first protrusion 2321. Two second limiting grooves 3231 are arranged at the top of the third protrusion 2323. Both the two first limiting grooves 3211 and the two second limiting grooves 3231 are designed in an arc shape. The main functions of the two first limiting grooves 3211 and the two second limiting grooves 3231 are to limit the lower hook lock part 24 during operation.

[0071] The lower hook lock part 24 is provided with a first cantilever buckle 243 that cooperates with the two first limiting grooves 3211. The lower hook lock part 24 is provided with a second cantilever buckle 244 that cooperates with the two second limiting grooves 3231. The first cantilever buckle 243 cooperates with the two first limiting grooves 3211, and the second cantilever buckle 244 cooperates with the two second limiting grooves 3231. The first cantilever buckle 243 and the second cantilever buckle 244 cooperate with the corresponding limiting grooves to form a limiting structure, thereby realizing the switching between the two working states of unlocking and locking of the lower sealing box mechanism. When in the open or locked box state, the first cantilever buckle 243 and the second cantilever buckle 244 can be inserted into the corresponding limiting grooves to play a positioning role, and at the same time strengthen the locking ability of the sealing box mechanism to avoid automatic unlocking caused by accidental impact.

[0072] Several lower positioning bosses 221 that cooperate with the lower positioning grooves 233 are provided on one side of the lower lock cover plate 22 close to the lower lock groove plate 23. When the lower lock cover plate 22 and the lower lock groove plate 23 are assembled, they can play a role in precise positioning, facilitating the assembly of the two.

[0073] A lower assembly groove 234 adapted to the lower hook lock part 24 is formed on the lower lock groove plate 23. The lower hook lock part 24 is installed in the lower assembly groove 234 and can move within the lower assembly groove 234.

[0074] A connecting groove 212 for connecting the box plate is formed on the lower locking tongue plate 21. A connecting space 25 for the box plate is formed between the lower locking cover plate 22 and the lower locking groove plate 23. The main function of the connecting groove 212 is to assist in positioning and assembling the lower locking tongue plate 21 and the box plate, ensuring tight and accurate connection between components. The connecting space 25 is used for positioning and assembling with the box plate, ensuring tight and accurate connection between components.

[0075] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A flexible folding hinged box, comprising a lower box panel (1), characterized in that: The front end of the lower box panel (1) is connected to the bottom end of the front box panel (4) through the lower box sealing structure (2), the rear end of the lower box panel (1) is connected to the bottom end of the rear box panel (5) through a flexible hinge (3), the left and right ends of the lower box panel (1) are connected to the bottom ends of the side box panels (7) through protective edge strips (6), the tops of the side box panels (7), the front box panel (4) and the rear box panel (5) are connected to the upper box panel (8), the front end of the upper box panel (8) is connected to the front box panel through the upper box sealing structure (9), and the bottom ends of the lower box panel (1) are connected to the bottom ends of the side box panels (7), the front box panel (4) and the rear box panel (5). The top of the upper box panel (4) is connected, the rear end of the upper box panel (8) is connected to the top of the rear box panel (5) through a flexible hinge (3), the left and right ends of the upper box panel (8) are connected to the top of the side box panels (7) through protective edge strips (6), and the lower box panel (1), the lower sealing structure (2), the flexible hinge (3), the front box panel (4), the rear box panel (5), the protective edge strips (6), the side box panels (7), the upper box panel (8) and the upper sealing structure (9) are all made of a single bio-based material.

2. The flexible folding hinge box according to claim 1, characterized in that: The flexible hinge (3) comprises a bendable flexible strip (32), and U-shaped grooves (31) for connecting box panels are symmetrically arranged at both ends of the flexible strip (32). The flexible strip (32) and the U-shaped groove (31) are integrated, and the thickness of one side of the U-shaped groove (31) is greater than the thickness of the other side of the U-shaped groove (31).

3. The flexible folding hinge box according to claim 2, characterized in that: The flexible strip (32) is provided with a plurality of evenly distributed anti-crack grooves (321), and a matching boss (311) is provided in the middle of the U-shaped groove (31).

4. The flexible folding hinge box according to claim 1, characterized in that: Rounded corner structures are provided at both ends of the top of the protective edge strip (6), a folding portion (61) is provided at one end of the protective edge strip (6), and a folding groove (62) is provided between the folding portion (61) and the protective edge strip (6).

5. The flexible folding hinge box according to claim 4, characterized in that: The protective edge strip (6) is provided with a first matching groove (63) and a second matching groove (64), wherein the first matching groove (63) is connected to the side box plate (7), and the second matching groove (64) is connected to the lower box plate (1) or the upper box plate (8).

6. The flexible folding hinge box according to claim 1, characterized in that: The upper box sealing structure (9) comprises an upper locking cover plate (91) and an upper locking slot plate (92), wherein the upper locking cover plate (91) and the upper locking slot plate (92) are fixedly connected, an upper locking tongue plate (93) is fixedly mounted on the top of the upper locking cover plate (91), an upper tongue hook portion (931) is symmetrically arranged on the bottom of the upper locking tongue plate (93), an upper assembly hole (911) is opened in the middle of the upper locking cover plate (91), a hand buckle (94) movable up and down is mounted on the upper assembly hole (911), wedge-shaped grooves (941) are symmetrically arranged on both sides of the hand buckle (94), an upper hook lock member (95) is movably mounted on the wedge-shaped groove (941), and the other end of the upper hook lock member (95) is buckled with the upper tongue hook portion (931).

7. The flexible folding hinge box according to claim 6, characterized in that: An upper assembly groove (925) for mounting the hand buckle (94) is provided in the middle of the upper locking groove plate (92), and an upper first through hole (9251) is also provided on the upper assembly groove (925). An upper limit groove (922) cooperating with the upper hook lock member (95) is provided on the upper locking groove plate (92).

8. The flexible folding hinge box according to claim 7, characterized in that: An upper mounting groove (942) is provided in the middle of the hand buckle (94), an upper second through hole (9421) is provided in the upper mounting groove (942), a sub-locking tongue (96) and a sub-locking ring (97) are installed in the upper mounting groove (942), one end of the sub-locking tongue (96) passes through the upper second through hole (9421) and the upper first through hole (9251) and is snap-connected with the end surface of the upper locking groove plate (92), and the sub-locking ring (97) is rotatably connected to the sub-locking tongue (96).

9. The flexible folding hinge box according to claim 1, characterized in that: The lower box sealing structure (2) comprises a lower locking tongue plate (21), the top of the lower locking tongue plate (21) is fixedly connected with a lower locking cover plate (22) and a lower locking slot plate (23), the lower locking cover plate (22) and the lower locking slot plate (23) are fixedly connected, a movable lower hook lock member (24) is arranged between the lower locking cover plate (22) and the lower locking slot plate (23), a lower hook lock hook (241) is arranged at the bottom of the lower hook lock member (24), a lower locking tongue hook (211) matched with the lower hook lock hook (241) is arranged at the top of the lower locking tongue plate (21), and the lower hook lock hook (241) is movably buckled with the lower locking tongue hook (211).

10. The flexible folding hinge box according to claim 9, characterized in that: A lower assembly hole (231) is provided on one side of the lower lock slot plate (23) away from the lower lock cover plate (22), and a switch protrusion (242) is provided in the middle of the lower hook lock member (24), and the switch protrusion (242) passes through the lower assembly hole (231) and moves in the lower assembly hole (231).

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