Modularized container splicing structure

By setting rotatable sealing plates and positioning strips at both ends of the container, flexible splicing of the container is achieved, solving the problems of poor flexibility and inconvenient on-site installation caused by customized production in the prior art, and improving the flexibility and versatility of assembly.

CN120096955APending Publication Date: 2025-06-06JIANGSU JINDUI PRECISION MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510377023.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

The existing container splicing methods rely on customized production, resulting in poor flexibility, inconvenient on-site installation, and lack of flexibility to adapt to different assembly needs.

Method used

The modular container splicing structure is adopted, and the flexible splicing of the box is achieved by setting rotatable sealing plates and positioning strips at both ends of the box. The sealing plate can be rotated to fit with the top of the inner wall of the box, and the positioning strip extends into the adjacent box to fit with the sealing plate, achieving reliable connection between the box.

Benefits of technology

It improves the flexibility and versatility of container assembly, avoids the need for customized production, enhances the support strength of the top of the box, and improves the load-bearing capacity and installation efficiency of the overall structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120096955A_ABST
    Figure CN120096955A_ABST
Patent Text Reader

Abstract

The invention discloses a modular container splicing structure, and relates to the technical field of container splicing structures, the modular container splicing structure comprises a box body, a sealing plate, a positioning strip and a plurality of auxiliary structures, and through collaborative design of the sealing plate, the positioning strip, a supporting block, an inserting plate and other assemblies, rapid splicing and high stability of a container are achieved. The two ends of the box body are open, and the internal sealing plate can rotate to switch an independent use mode or a splicing mode; the positioning strips are matched with the insertion holes to ensure connection rigidity; the supporting block automatically stretches and retracts through the elastic piece to enhance supporting; the sealing performance of vertical stacking is optimized through the inserting plates and the sealing frame strips; and the torsion resistance of the telescopic insertion rod and the opposite pull rope is improved. According to the invention, the splicing efficiency and the structural reliability are obviously improved, and the method is suitable for various modular application scenes.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of containers, and in particular to a modular container splicing structure. Background Art

[0002] As a standardized transportation and storage device, containers have gradually become an important tool in the logistics and construction industries since the mid-20th century due to their reusability and high versatility. In recent years, the rise of modular construction concepts has further promoted the expansion of container applications, such as transforming them into temporary homes, mobile offices or medical facilities.

[0003] The container assembly method in the related art is usually customized, and fixed-size containers are produced according to user needs. For example, a conventional container includes a box body, which is usually open at one end for easy installation of door panels and closed at the other end with a cover plate fixedly installed. Such boxes are usually suitable for independent use. However, when customized container assembly is required, such as when two boxes are connected in series, it is necessary to produce a customized box body without a cover plate, so that the two boxes can be fixedly installed on site.

[0004] The above-mentioned related technologies have the following defects: this customized processing process needs to be planned in advance according to the assembly plan, and the production style and quantity must be determined in advance, which makes processing inconvenient. Once a quantity mismatch occurs during on-site installation, it will seriously affect the on-site assembly progress. The flexibility and versatility are poor, so it needs to be improved. Summary of the invention

[0005] In order to improve the flexibility of container assembly, the present application provides a modular container splicing structure.

[0006] The modular container splicing structure provided in this application adopts the following technical solution:

[0007] A modular container splicing structure comprises a box body, both ends of which are open and each of which is provided with a sealing plate rotatably mounted inside, an outer wall of the sealing plate is provided with a positioning strip rotatably mounted thereon, and an inner wall of the box body is provided with a positioning groove for the positioning strip to be rotated and inserted into, and when the two boxes are spliced ​​in series, the sealing plate is located inside the box body and fits against the top of the inner wall of the box body, and the positioning strip extends into an adjacent box body and fits against the sealing plate inside the adjacent box body.

[0008] By adopting the above technical solution, the flexibility of container assembly is improved. When the container is used independently, the sealing plate can be rotated to block the port of the container and fixed by inserting the positioning strip into the positioning slot to ensure the stability of the closed state. When two containers need to be connected in series, the sealing plate can be rotated upward to fit the top of the inner wall of the container, and the positioning strip extends into the interior of the adjacent container and fits the adjacent sealing plate, thereby achieving a reliable connection between the two containers. This structure avoids the need for customized production, improves the uniformity of production and the flexibility of on-site assembly, while enhancing the support strength of the top of the container and increasing the upper limit of the load-bearing capacity of longitudinal assembly.

[0009] Preferably, the side wall inside the box body is provided with a support groove, and a support block is slidably arranged inside the support groove. The support block is used to support the sealing plate when the sealing plate is in contact with the top of the inner wall of the box body, and a support elastic member is arranged inside the support groove for pushing the support block outward.

[0010] By adopting the above technical solution, when the sealing plate fits with the top of the inner wall of the box, the support block automatically extends out of the support groove under the action of the supporting elastic member and supports the sealing plate, thereby further enhancing the stability of the sealing plate and the top of the inner wall of the box when they fit together, and improving the structural strength of the box after splicing. In addition, the automatic extension function of the support block simplifies the operation process, eliminating the need for additional manual adjustments, and improving on-site installation efficiency.

[0011] Preferably, a guide surface is provided at the bottom of one end of the support block extending out of the support groove for abutting against each other during the upward rotation of the sealing plate to realize automatic contraction of the support block.

[0012] By adopting the above technical solution, the support block can automatically shrink through the guide surface when the cover plate rotates upward. This design effectively avoids interference between the cover plate and the support block when rotating, ensuring that the cover plate rotates smoothly to fit the top of the inner wall of the container. At the same time, the automatic shrinkage function of the support block simplifies the operation process and improves the convenience and efficiency of the container splicing process.

[0013] Preferably, when the containers are stacked and assembled, a plug plate is fixedly provided at the bottom of the upper box, and an installation gap for inserting the plug plate is provided between two adjacent boxes on the lower layer, and the plug plate is provided with a clearance hole for the positioning strip to pass through.

[0014] By adopting the above technical solution, convenient connection is achieved when stacking and assembling containers. The specific effects are as follows: by setting a plug plate at the bottom of the upper box body and using the installation gap between the two adjacent boxes of the lower layer for the plug plate to be inserted, a stable connection between the upper and lower boxes can be achieved without additional bolt fixation, thereby improving the assembly efficiency. The plug plate is provided with a clearance hole to allow the positioning bar to pass through, ensuring that the upper and lower boxes are connected without interfering with the function of the positioning bar, further enhancing the stability of the overall structure. This solution simplifies the operation process of stacking and assembling, reduces the workload of on-site installation, and improves the flexibility and versatility of container assembly.

[0015] Preferably, a sealing frame strip is provided on the end surface of the box body, a slot for inserting the plug board is provided on the side wall of the sealing frame strip, and a sealing strip is rotatably provided on the top of the slot.

[0016] By adopting the above technical solution, the setting of the sealing frame strip can provide a sealing effect when the two box end faces are against each other, effectively preventing the external environmental factors from affecting the environment inside the box. The slot design provides a passage for the plug-in board to fit through, ensuring the stability of the structure and the reliability of the connection when stacked up and down. In addition, the rotating sealing strip can be torn off when the plug-in board needs to pass through, which not only ensures the sealing performance under normal circumstances, but also improves the convenience and flexibility of on-site installation.

[0017] Preferably, the side wall of the positioning bar is provided with an insertion hole, and when the two boxes are connected in series, the same insertion rod is adapted to be inserted into the insertion holes of the two positioning bars.

[0018] By adopting the above technical solution, the side wall of the positioning strip is provided with a plug hole, and the same plug rod is inserted into the plug holes of the two positioning strips when the two boxes are connected in series, so as to further fix the relative positions of the two positioning strips and improve the stability of the two boxes when they are connected in series. In addition, combined with the sealing plate and the positioning strip structure, the provision of the plug rod can effectively prevent the positioning strip from shifting or detaching during use, ensure the reliability of the connection between the sealing plates inside the two boxes, and thus enhance the firmness of the overall splicing structure.

[0019] Preferably, the insertion rod is a telescopic rod, and a support hole for inserting the end of the insertion rod is provided inside the box.

[0020] By adopting the above technical solution, the telescopic rod as an insertion rod can adjust the length according to actual needs, enhancing the adaptability of series splicing. Support holes are set inside the box to fix the end of the insertion rod, ensuring the stability of the structure when the two boxes are connected in series and improving the overall connection strength. In addition, the adjustable characteristics of the telescopic rod further optimize the alignment and fixing operations during the container splicing process, improving the efficiency of on-site installation.

[0021] Preferably, the side walls of the sealing plates are provided with pulling holes, and pulling ropes are provided between two adjacent sealing plates. Both ends of the pulling ropes are fixedly provided with mounting rods, and the mounting rods are threadedly connected to the corresponding pulling holes.

[0022] By adopting the above technical solution, the side wall of the sealing plate is provided with a tension hole, and a tension rope is provided between two adjacent sealing plates. The two ends of the tension rope are fixed with mounting rods and threadedly connected with the tension hole, so as to realize the convenient alignment and fit of the ends of the two boxes during the hoisting process. The specific effects include: first, the relative position of the two boxes can be accurately adjusted by manually straightening the tension rope, which improves the convenience of operation; second, it effectively solves the problem of difficulty in aligning the ends of the series during hoisting, and improves the installation efficiency and accuracy.

[0023] Preferably, a positioning hole is provided at the bottom of the box body, and a positioning column is provided at the top of the box body. When the containers are stacked and assembled up and down, the positioning columns extend into the corresponding positioning holes.

[0024] By adopting the above technical solution, when the containers are stacked up and assembled, the positioning posts are inserted into the positioning holes to achieve accurate positioning between the containers, effectively preventing the upper and lower containers from shifting horizontally and improving the stacking stability. At the same time, the structure is simple in design and easy to operate. No additional tools are required to complete the initial positioning and fixing, which significantly improves the efficiency of on-site assembly.

[0025] Preferably, a ball is arranged in the positioning hole of the box body at the bottom layer, and the bottom of the ball extends out of the positioning hole.

[0026] By adopting the above technical solution, the ball is set in the positioning hole of the bottom box, and the bottom of the ball extends out of the positioning hole, so that the friction when the box moves can be reduced in the initial installation, making it easier to adjust the position of the box and improving the installation efficiency. After the installation is completed, the ball can be crushed by tools and concrete can be poured to achieve final fixation, ensuring the stability and reliability of the structure.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By setting rotatable sealing plates and positioning strips at both ends of the container, the flexible switching between independent use and serial splicing of containers is realized, without the need for customized production of containers of different specifications, which significantly improves the flexibility and versatility of assembly;

[0029] 2. When the two boxes are connected in series, the positioning strips extend into the adjacent boxes and fit into the sealing plate, which not only ensures the stability of the connection, but also enhances the supporting strength of the top of the box and improves the load-bearing capacity of the overall structure;

[0030] 3. The internal design of the box is simple, and the cover can be fixed or unlocked by simple rotation and plug-in operations, which simplifies the on-site installation process, reduces the difficulty of construction, and adapts to changing usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0032] Figure 2 This is a structural schematic diagram for illustrating the connection relationship between the positioning strip and the positioning groove in the embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of the structure used to reflect the state in which the sealing plate rotates to fit with the top wall of the box body in the embodiment of the present application;

[0034] Figure 4 This is a structural schematic diagram for illustrating the connection relationship between the positioning strip and the insertion rod in the embodiment of the present application;

[0035] Figure 5 This is a structural schematic diagram for illustrating the connection relationship between the sealing plate and the supporting block in the embodiment of the present application;

[0036] Figure 6 This is a schematic diagram of the structure before the plug board and the sealing frame strip are assembled in the embodiment of the present application;

[0037] Figure 7 This is a structural schematic diagram used to illustrate the assembly process of the plug board and the sealing frame strip in the embodiment of the present application;

[0038] Figure 8 This is a schematic diagram of the structure after the plug board and the sealing frame strip are assembled in the embodiment of the present application;

[0039] Fig. 9 This is a structural schematic diagram for illustrating the connection relationship between the pull rope and the sealing plate in the embodiment of the present application;

[0040] Fig.10 It is a structural schematic diagram used to illustrate the connection relationship between the positioning column and the positioning hole in the embodiment of the present application.

[0041] In the figure:

[0042] 1. Box body; 11. Closing plate; 12. Positioning strip; 120. Positioning groove; 13. Insertion rod; 130. Insertion hole; 131. Support hole;

[0043] 2. Support block; 20. Support groove; 21. Support elastic member; 22. Guide surface;

[0044] 3. Insert plate; 30. Make way hole;

[0045] 4. Sealing frame strip; 40. Slot; 41. Sealing strip;

[0046] 5. Mounting rod; 50. Pull hole; 51. Pull rope;

[0047] 6. Positioning column; 60. Positioning hole. DETAILED DESCRIPTION

[0048] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0049] The inventor of this application has found that the container splicing method in the prior art relies on customized production, which has problems such as poor flexibility and inconvenient on-site installation. Therefore, this application aims to provide a modular container splicing structure, which achieves the following technical goals through innovative mechanical design:

[0050] Improve splicing flexibility: Support horizontal series connection, vertical stacking and mixed splicing of cabinets without customized production;

[0051] Improve installation efficiency: complete splicing through simple operations such as rotation and plugging, reducing dependence on tools and labor;

[0052] Enhanced structural stability: Multi-point support, automatic locking and anti-deviation design are adopted to ensure the load-bearing capacity and anti-deformation performance after splicing;

[0053] Optimize sealing performance: through the design of sealing frame strips, flexible sealing strips, etc., effectively isolate external environmental interference;

[0054] Expanded application scenarios: adapt to different environmental conditions (such as high humidity, high load) and complex splicing requirements.

[0055] To achieve the above objectives, the modular container splicing structure of the present invention includes the following core components and their synergistic effects:

[0056] Example

[0057] Reference Figure 1 The modular container splicing structure provided in the embodiment of the present application includes a box body 1. This embodiment takes two box bodies 1 connected in series on the lower layer and a single box body 1 on the upper layer as an example to illustrate the connection relationship of various components in the assembled state.

[0058] Reference Figure 2Both ends of the box body 1 are open and the inner wall of the opening is rotatably connected with a sealing plate 11, and the sealing plate 11 includes a sealing plate 11 body and a rotating shaft. The sealing plate 11 body is a rectangular steel plate, and the material can be selected from cold-rolled steel plate or stainless steel plate to ensure strength and corrosion resistance. The rotating shaft adopts a solid steel shaft, which is connected to the inner wall of the box body 1 through a bearing, so that the sealing plate 11 can rotate smoothly. The sealing plate 11 body and the rotating shaft are fixed by welding to ensure a firm connection. The outer wall of the sealing plate 11 is rotatably connected with a positioning bar 12. The positioning bar 12 includes a positioning bar 12 body and a rotating connector. The main body of the positioning bar 12 is a rectangular metal rod, and the material can be selected from aluminum alloy or stainless steel, which can both ensure strength and reduce weight. The rotating connector adopts a pin shaft, which is connected to the outer wall of the sealing plate 11 through a pin hole, so that the positioning bar 12 can rotate flexibly. The main body of the positioning bar 12 and the rotating connector are fastened by bolts for easy disassembly and replacement.

[0059] A positioning groove 120 is provided at the top of the inner wall of the box body 1. The positioning groove 120 is a square hole, which is provided on the inner wall of the box body 1 near the sealing plate 11, and is used to accommodate the positioning bar 12 for insertion after rotation. The sealing plate 11 is normally arranged vertically and blocks the end of the box body 1. At this time, the positioning bar 12 is rotated so that the positioning bar 12 is inserted into the positioning groove 120 to limit the angle of the sealing plate 11 and fix the sealing plate 11. The inner wall of the positioning groove 120 can be provided with anti-slip textures to increase the stability of the positioning bar 12 after insertion.

[0060] Reference Figure 3 When two boxes 1 are connected in series, the sealing plate 11 rotates upward to fit with the top of the inner wall of the box 1, and the positioning strip 12 extends into the adjacent box 1 and fits with the sealing plate 11 inside the adjacent box 1, thereby achieving stable support for the sealing plate 11 at the connection point of the two boxes 1. The combination logic is that the sealing plate 11 is connected to the box 1 through a rotating shaft, and the positioning strip 12 is connected to the sealing plate 11 through a rotating connector. When the sealing plate 11 is closed, the positioning strip 12 is inserted into the positioning groove 120, and the positioning groove 120 forms an insertion fit with the positioning strip 12, thereby limiting the rotation of the sealing plate 11. When the sealing plate 11 is opened, the positioning strip 12 extends into the adjacent box 1 to form a supporting structure. This design allows the box 1 to be used independently or flexibly connected, greatly improving the assembly flexibility and versatility. The ingenious design of the sealing plate 11 and the positioning strip 12 solves the problem of traditional container splicing methods relying on customized production. The combined structure of the sealing plate 11 and the positioning strip 12 is simple and reliable, easy to operate, and can be quickly assembled without additional tools. In addition, the structure also has good scalability and can adapt to a variety of assembly scenarios, significantly improving the flexibility and efficiency of container modular applications.

[0061] Reference Figure 4The side wall of the positioning strip 12 is provided with a socket 130, which is circular or elliptical in shape, and a rod 13 is inserted into the socket 130, and the rod 13 is a telescopic rod. A support hole 131 is provided on the inner wall of the box body 1 near the top, and the shape of the support hole 131 is adapted to the end of the rod 13. The combination logic is that after the middle part of the rod 13 passes through the coaxial sockets 130 of the two positioning strips 12, the two ends of the rod 13 are inserted into the support holes 131 on both sides of the box body 1 to form a multi-point support structure, which further enhances the stability of the positioning strip 12 and the sealing plate 11 after assembly. The telescopic design of the rod 13 enables it to adapt to different assembly scenarios and improves its flexibility of use. The multi-point support structure can effectively disperse the force and prevent structural damage due to excessive force at a single point.

[0062] Reference Figure 5 A support groove 20 is also provided on the inner wall of the box body 1 near the sealing plate 11. The support groove 20 is a rectangular groove. A support block 2 is slidably provided inside the support groove 20. The support block 2 is a rectangular steel plate. In addition, a portion of the support block 2 extends out of the support groove 20 and a guide surface 22 is provided at the bottom of one end extending out of the support groove 20. The guide surface 22 is an inclined surface. A support elastic member 21 is provided between the inner wall of the support groove 20 and the support block 2. The material of the support elastic member 21 can be selected from spring steel or high carbon steel, which has good elasticity and strength. The support block 2 can freely expand and contract in the support groove 20 and the support elastic member 21 provides an outward thrust to the support block 2, so that the guide surface 22 has a part located inside the support groove 20 and a part extending out of the support groove 20. When the sealing plate 11 rotates upward, the guide surface 22 can abut against the edge of the sealing plate 11, so that the support block 2 automatically shrinks into the support groove 20 after squeezing the support elastic member 21 to avoid interference. When the sealing plate 11 rotates to fit against the inner top wall of the box body 1, the supporting elastic member 21 restores its deformation, thereby automatically pushing the supporting block 2 outward and supporting the bottom of the sealing plate 11. The combination logic is that the supporting groove 20, the supporting block 2 and the supporting elastic member 21 work together to provide additional support when the sealing plate 11 fits against the top of the inner wall of the box body 1, thereby enhancing the stability of the sealing plate 11. The supporting block 2 is automatically extended and retracted through the guide surface 22, without the need for manual operation, thereby improving the convenience of use. Especially when multiple containers are stacked and assembled, this design can effectively prevent the sealing plate 11 from being deformed due to uneven force, significantly improving the safety and reliability of the overall structure.

[0063] Reference Figures 6 to 8, taking the example of placing two series boxes 1 on the lower layer and a single box 1 on the upper layer, a plug plate 3 is welded and fixed in the middle of the bottom of the box 1 on the upper layer. The plug plate 3 is a rectangular steel plate, and the material can be selected from high-strength steel plate or alloy steel. The plug plate 3 is provided with a clearance hole 30, the shape of which matches the cross-sectional shape of the positioning bar 12, so that the positioning bar 12 can pass through. When stacking and assembling up and down, the upper box 1 is placed between the two adjacent boxes 1 on the lower layer, and then the positioning bars 12 inside the two lower boxes 1 are passed through the clearance holes 30 and then extended into the adjacent boxes 1. In this way, the connection between the upper box 1 and the lower box 1 is achieved, and no bolts are required for fixing. The connection is firm and it is not easy for the upper box 1 to separate from the lower box 1. In addition, the position where the upper box 1 applies force to the lower box 1 is just the position with additional support from the sealing plate 11, so the support strength of the present application after stacking and assembling up and down is higher.

[0064] In addition, a sealing frame strip 4 is fixed to the end face of the box body 1. The sealing frame strip 4 is a rectangular frame structure. The material can be plastic or rubber, and it is arranged circumferentially along the end face of the box body 1. A slot 40 is provided on the side wall at the top of the sealing frame strip 4. When the two sealing frame strips 4 are fitted together, the two slots 40 can form a channel for inserting the plug board 3. A sealing strip is rotatably arranged at the top of the slot 40. The sealing strip is made of a flexible material, and only the top part is adhered to the top of the slot 40, which is easy to tear off. The design of the plug board 3, the clearance hole 30 and the sealing frame strip 4 enables the rapid assembly of the upper and lower containers. This design can complete the connection without additional tools, and the connection is firm and reliable, and it is not easy to separate. In addition, the design of the sealing frame strip 4 also ensures the sealing after assembly, which improves the practicality and safety of the overall structure.

[0065] Reference Fig. 9 , the side wall of the sealing plate 11 is provided with a tension hole 50, which is a threaded hole and the mounting rod 5 can be assembled in the tension hole 50 by thread in the initial stage of installation, and a tension rope 51 is fixedly connected between the two mounting rods 5, and the tension rope 51 is a high-strength nylon rope. During the installation process, when lifting the container, it is easy to have the situation that the ends of the series are difficult to align or fit. At this time, it is time-consuming and the accuracy is not high to constantly adjust the lifting mechanism. When the final fine-tuning is required, the mounting rod 5 can be screwed into the tension hole 50, and the two connected sealing plates 11 are connected by the tension rope 51. Then, the operator stands inside the box body 1 and straightens the tension rope 51 by lifting / turning the sealing plate 11. In the process of continuously straightening the tension rope 51, the ends of the two box bodies 1 can be more conveniently fitted and aligned, thereby improving the convenience of operation. The tension holes 50 can actually be multiple groups, and a number of tension holes 50 can be evenly distributed vertically on the surface of the sealing plate.

[0066] Reference Fig.10A positioning hole 60 is provided at the bottom of the box 1, and a positioning column 6 is provided at the top of the box 1. When the box 1 is stacked vertically, a ball can be provided in the positioning hole 60, and the bottom of the ball extends out of the positioning hole 60, so as to facilitate the movement and adjustment of the position during the initial installation process. After the position adjustment is completed, the ball can be crushed and concrete can be poured to achieve final fixation. The specific implementation scheme is that a hole can be drilled at the top of the positioning hole 60, and then the ball can be crushed by other devices, and concrete can be poured through the drilling to achieve the final sealing and auxiliary fixation. The cooperation between the positioning column 6 and the positioning hole 60 realizes rapid positioning and significantly improves the assembly efficiency. The ball design provides more flexible mobility in the early stage of installation, and achieves final fixation by crushing the ball and pouring concrete, further improving the practicality and reliability of the overall structure.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A modular container splicing structure, comprising a container body (1), characterized in that: Both ends of the box body (1) are open and a sealing plate (11) is rotatably provided inside the box body. A positioning strip (12) is rotatably provided on the outer wall of the sealing plate (11). The inner wall of the box body (1) is provided with a positioning groove (120) for the positioning strip (12) to be rotated and inserted. When the two boxes (1) are connected in series, the sealing plate (11) is located inside the box body (1) and fits against the top of the inner wall of the box body (1), and the positioning strip (12) extends into the interior of the adjacent box body (1) and fits against the sealing plate (11) inside the adjacent box body (1).

2. A modular container splicing structure according to claim 1, characterized in that: The side wall inside the box body (1) is provided with a support groove (20), and a support block (2) is slidably provided inside the support groove (20). The support block (2) is used to support the sealing plate (11) when the sealing plate (11) is in contact with the top of the inner wall of the box body (1), and a support elastic member (21) is provided inside the support groove (20) for pushing the support block (2) outward.

3. A modular container splicing structure according to claim 2, characterized in that: The bottom of one end of the support block (2) extending out of the support groove (20) is provided with a guide surface (22) for abutting against the support block (2) during the upward rotation of the sealing plate (11) to achieve automatic contraction of the support block (2).

4. The modular container splicing structure according to claim 1, characterized in that: When the containers are stacked up and down for assembly, a plug plate (3) is fixedly arranged at the bottom of the box body (1) located at the upper layer, and an installation gap for inserting the plug plate (3) is provided between two adjacent boxes (1) located at the lower layer, and the plug plate (3) is provided with a clearance hole (30) for the positioning strip (12) to pass through.

5. A modular container splicing structure according to claim 4, characterized in that: The end surface of the box body (1) is provided with a sealing frame strip (4), the side wall of the sealing frame strip (4) is provided with a slot (40) for inserting the plug board (3), and a sealing strip is rotatably provided at the top inside the slot (40).

6. The modular container splicing structure according to claim 1, characterized in that: The side wall of the positioning strip (12) is provided with an insertion hole (130); when the two boxes (1) are connected in series, the same insertion rod (13) is adapted to be inserted into the insertion holes (130) of the two positioning strips (12).

7. A modular container splicing structure according to claim 6, characterized in that: The insertion rod (13) is a telescopic rod, and a support hole (131) for inserting the end of the insertion rod (13) is provided inside the box body (1).

8. The modular container splicing structure according to claim 1, characterized in that: The side wall of the sealing plate (11) is provided with a pulling hole (50), and a pulling rope (51) is provided between two adjacent sealing plates (11). Both ends of the pulling rope (51) are fixedly provided with a mounting rod (5), and the mounting rod (5) is threadedly connected to the corresponding pulling hole (50).

9. The modular container splicing structure according to claim 1, characterized in that: The bottom of the box body (1) is provided with a positioning hole (60), and the top of the box body (1) is provided with a positioning column (6). When the containers are stacked and assembled, the positioning column (6) extends into the corresponding positioning hole (60).

10. A modular container splicing structure according to claim 9, characterized in that: A ball is arranged in the positioning hole (60) of the box body (1) at the bottom layer, and the bottom of the ball protrudes out of the positioning hole (60).