Container self-locking connection device and its using method

Abstract

This invention discloses a container self-locking connection device and its usage method, comprising a first connector and a second connector. The first connector includes a first connecting housing with a first rotating locking tongue disposed therein. The second connector includes a second connecting housing with a second rotating locking tongue disposed therein. The first connector and the second connector are respectively fixed to opposite positions of adjacent containers via the first and second connecting housings, and the first and second connectors are directly opposite each other. When the adjacent containers are pressed together, the first and second rotating locking tongues lock together through relative movement, achieving a fixed connection between the adjacent containers. This invention simplifies construction control requirements and reduces construction difficulty.

Description

Technical Field

[0001] This invention relates to the field of building structure connectors, specifically a container tight-fitting self-locking connection device and its usage method. Background Technology

[0002] Prefabricated modular data centers are pre-engineered solutions where information technology equipment (such as servers, switches, firewalls, etc.), along with supporting power supply, cooling, fire protection, and monitoring equipment, are integrated into modular enclosures in a factory according to project requirements. These enclosures are then transported to the project site for reassembly and deployment. Due to their short construction cycles, high flexibility, and stable construction quality, they are gradually becoming the mainstream trend in data center construction.

[0003] ChatGPT pioneered the new AIGC (AI Generic Data Center) business model, and the emergence of DeepSeek led to an explosive growth in domestic computing power demand, propelling AI development into the AI ​​2.0 era characterized by multimodal computing and large-scale models. The computing power and construction scale of prefabricated modular data centers are increasing, and to save investment and land, stacking modular enclosures into multi-layered structures has become a "must-have" in the construction of prefabricated modular data centers.

[0004] Traditional welding or bolting methods for connecting container bodies rely on manual labor, and connections can only be made at the beam and column ends. The areas within the beams and columns are dead zones where manual connection is impossible. Furthermore, splicing and stacking connections between container bodies generally suffer from insufficient rigidity, poor load-bearing capacity, poor seismic resistance, poor wind resistance, difficulty in achieving the required precision in stacking connection construction, and complex, time-consuming on-site construction procedures. These drawbacks limit the application scenarios of prefabricated modular data centers, currently confining them to small to medium-sized data centers with two floors or less. Summary of the Invention

[0005] The technical objective of this invention is to address the above-mentioned shortcomings by providing a container tight-fitting self-locking connection device and its usage method. This device is used for tight-fitting self-locking connections between prefabricated modular data center containers, offering high connection strength, simple structure, and a high degree of automation in installation and operation. It enhances the collaborative force-bearing capacity between stacked containers and the earthquake and wind resistance of the stacking system, simplifies construction control requirements, reduces construction difficulty, increases construction speed, and expands the application scenarios of prefabricated modular container data centers.

[0006] In a first aspect, the present invention provides a container sealing self-locking connection device, comprising a first connector and a second connector, wherein... The first connector includes a first connecting housing, and a first rotating locking tongue is provided in the first connecting housing; The second connector includes a second connecting housing, in which a second rotary locking tongue is provided; The first connector and the second connector are fixed to the relative positions of adjacent containers through the first connecting housing and the second connecting housing, respectively, and the first connector and the second connector are facing each other. When the adjacent containers are pressed together, the first rotating locking tongue and the second rotating locking tongue are locked together through relative movement, thereby realizing the fixed connection of the adjacent containers.

[0007] The second connector is a structure in which the first connector is rotated 180°.

[0008] The first connecting housing includes a top plate and side plates that are perpendicularly connected to the two edges of the top plate. A connecting plate is perpendicularly connected to the bottom edge of one of the side plates. An arc-shaped groove with a semi-circular longitudinal section is connected along the edge of the connecting plate facing the inside of the first connecting housing. The opening of the arc-shaped groove is located in the middle of the two side plates. The first rotating latch includes a semi-cylindrical block adapted to the arc-shaped groove. An elongated hole is formed along the arc centerline of the portion of the arc-shaped groove located inside the first connecting housing. A transmission rod is provided on the arc-shaped surface of the semi-cylindrical block. The transmission rod passes through the elongated hole. The upper end of the transmission rod is connected to a side plate opposite to the opening of the arc-shaped groove via a spring. A lower limit block for the transmission rod is provided along the edge of the arc-shaped groove located inside the first connecting housing. The spring pulls the transmission rod to abut against the lower limit block. The semi-cylindrical block rotates within the arc-shaped groove, and the rotation angle is less than 90°.

[0009] A guide head is connected to the outer edge of the arc-shaped groove located outside the first connecting housing. The guide head includes a straight plate connected to the edge, which is flush with the opening of the arc-shaped groove. An inclined plate is connected to the edge of the straight plate away from the arc-shaped groove. The angle of the inclined plate is the same as the rotation angle of the semi-cylindrical block when the transmission rod abuts against the lower limit block of the transmission rod. A side plate parallel to the straight plate is connected to the side of the connecting plate located outside the first connecting housing. The side plate and the inclined plate are connected by a folded plate, and the folded angle of the folded plate is away from the first connecting housing.

[0010] A sealing rubber is provided on the side plate, and the distance between the side plate and the adjacent side plate is less than the thickness of the sealing rubber.

[0011] When the first connector and the second connector are aligned, the flat surface of the semi-cylindrical block of the first connector is in contact with the inclined plate of the guide head of the second connector, and the straight plate of the first connector is flush with the straight plate of the second connector. During the contact process between the first connector and the second connector, guided by the guide head, the semi-cylindrical blocks of the first connector and the semi-cylindrical blocks of the second connector are first aligned into cylinders, and then the corresponding semi-cylindrical blocks are rotated by the spring; the sealing rubber seals the gap between the corresponding side plates and edge plates.

[0012] A transmission rod upper limit block is vertically connected to the inner surface of the top plate. The spring pulls the transmission rod to abut against the transmission rod lower limit block and simultaneously abuts against the transmission rod upper limit block.

[0013] A limiting block for the transmission rod is provided on the inner surface of the side plate connected to the connecting plate. When the semi-cylindrical block coincides with the arc groove, the transmission rod abuts against the limiting block for the transmission rod.

[0014] The first connector and the second connector are respectively fixed inside the beams of the corresponding containers, and the lower edge of the side plate is flush with the outer edge of the beam.

[0015] Secondly, the present invention provides a method for using a container tight-fitting self-locking connection device, wherein the container tight-fitting self-locking connection device is used to connect adjacent containers, comprising: The upper container is hoisted above the lower container. After the first connector and the second connector are aligned, the upper container is slowly lowered. When the adjacent containers are pressed together, the first rotary locking tongue and the second rotary locking tongue are locked together through relative movement, thus achieving a fixed connection between the adjacent containers.

[0016] The container tight-fitting self-locking connection device and its usage method of the present invention have the following advantages: They break through the traditional connection paradigm of bolted or welded connections between container bodies that require manual intervention, providing a new tight-fitting self-locking connection method that does not require manual intervention; they greatly reduce the difficulty of connecting beams or columns between container bodies, and can be installed in areas where traditional connection methods are ineffective for connecting container bodies. Simultaneously, this connection device has high strength and strong deformation resistance, improving the strength of the connection between container bodies; its simple structure and high degree of automation in installation and operation enhance the cooperative force-bearing capacity between stacked containers and the seismic and wind resistance of the stacking system, simplifying construction control requirements, reducing construction difficulty, increasing construction speed, and expanding the application scenarios of prefabricated modular container data centers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] The invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the container tight-fitting self-locking connection device according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the unhooked state of the container close-fitting self-locking connection device according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the free state of the container tight-fitting self-locking connection device according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the self-locking state of the container tight-fitting self-locking connection device according to Embodiment 1 of the present invention; In the figure: 1 First connector, 11 First connecting shell, 111 Top plate, 112 Side plate, 113 Connecting plate, 12 First rotating locking tongue, 121 Arc groove, 122 Long hole, 123 Semi-cylindrical block, 124 Transmission rod, 13 Spring, 14 Lower limit block of transmission rod, 15 Guide head, 151 Straight plate, 152 Inclined plate, 153 Side plate, 154 Folded plate, 16 Sealing rubber, 17 Upper limit block of transmission rod, 18 Middle limit block of transmission rod; 2. Second connector; 21. Second connecting housing; 22. Second rotary locking tongue; 3 beams. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0021] It should be understood that in the description of the embodiments of the present invention, terms such as "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order. In the embodiments of the present invention, "multiple" refers to two or more.

[0022] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, B existing alone, or both A and B existing simultaneously. Furthermore, in this document, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0023] This invention provides embodiment A to solve a technical problem. In this embodiment, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate orientation or positional relationships based on the appendix. Figure 1 The orientations or positional relationships shown are merely relational terms determined for the convenience of describing the structural relationships of the various components or elements of the present invention, and do not specifically refer to any component or element in the present invention, and should not be construed as limiting the present invention.

[0024] In this embodiment of the invention, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of the above terms in this invention based on the specific circumstances, and they should not be construed as limitations on the invention. Example

[0025] like Figures 1-4 As shown, the container tight-fitting self-locking connection device provided in this embodiment can be used for tight-fitting self-locking connection between prefabricated modular data center containers. Specifically, it can be used for connection between beams or columns when splicing or stacking adjacent container containers of prefabricated modular data centers.

[0026] Prefabricated container data centers using traditional connection methods suffer from several problems, including difficulty in installing connection nodes, numerous dead zones where installation is impossible, the need for extensive manual intervention during installation, slow installation speed, insufficient rigidity of the connection method, poor system coordinating stress resistance, insufficient earthquake and wind resistance, and limited application scenarios.

[0027] This embodiment proposes a highly automated connection device that significantly reduces the difficulty of connecting beams or columns within container houses. It can be installed in areas where traditional connection methods would be ineffective, allowing for connections between container houses. The connection is highly automated and fast to install, while also providing high connection strength and strong load-bearing capacity of the connected containers. This improves the seismic and wind resistance of containerized data center structures, thereby greatly expanding the application scenarios of prefabricated containerized data centers.

[0028] The container sealing self-locking connection device proposed in this embodiment may include a first connector 1 and a second connector 2. The first connector 1 includes a first connecting housing 11, in which a first rotating locking tongue 12 is provided; the second connector 2 includes a second connecting housing 21, in which a second rotating locking tongue 22 is provided; the first connector 1 and the second connector 2 are respectively fixed to the relative positions of adjacent containers through the first connecting housing 11 and the second connecting housing 21, and the first connector 1 and the second connector 2 are directly opposite each other. When the adjacent containers are pressed together, the first rotating locking tongue 12 and the second rotating locking tongue 22 are locked together through relative movement, thereby realizing the fixed connection of the adjacent containers.

[0029] This container sealing self-locking connection device consists of two connectors. Each connector can be installed on a beam (3) or column of an adjacent container. The connectors connect to the beam (3) or column via their connecting housings and can be positioned at the ends or middle of the beam or column. When the container bodies are spliced ​​or stacked, the two rotating locking tongues move relative to each other and lock together, making the two connectors a single unit, thus achieving beam-to-beam and column-to-column connections between the containers. The installation method of the first connector 1 and the second connector 2 is determined according to the structure of the beam or column, ensuring that the robustness of the beam or column is not compromised and that the connection stability is guaranteed.

[0030] The two connectors have the same structure, with the second connector 2 being the first connector 1 rotated 180°.

[0031] First connector 1: The first connecting housing 11 includes a top plate 111 and side plates 112 perpendicularly connected to the two edges of the top plate 111. A connecting plate 113 is perpendicularly connected to the bottom edge of one of the side plates 112. An arc-shaped groove 121 with a semi-circular longitudinal section is connected along the edge of the connecting plate 113 facing the interior of the first connecting housing 11. The opening of the arc-shaped groove 121 is located in the middle of the two side plates 112. The first rotating latch 12 includes a semi-cylindrical block 123 with the same longitudinal section as the arc-shaped groove 121, located in the arc-shaped groove 121. The interior of the first connecting housing 11 has an elongated hole 122 along the arc-shaped centerline. A transmission rod 124 is provided on the arc-shaped surface of the semi-cylindrical block 123. The transmission rod 124 passes through the elongated hole 122. The upper end of the transmission rod 124 is connected to the side plate 112 opposite to the opening of the arc-shaped groove 121 via a spring 13. A lower limit block 14 of the transmission rod is provided along the edge of the arc-shaped groove 121 located inside the first connecting housing 11. The spring 13 pulls the transmission rod 124 to abut against the lower limit block 14. The semi-cylindrical block 123 rotates within the arc-shaped groove 121, and the rotation angle is less than 90°.

[0032] A guide head 15 is connected to the outer edge of the arc groove 121 located outside the first connecting housing 11. The guide head 15 includes a straight plate 151 connected to the edge. The straight plate 151 is flush with the opening of the arc groove 121. An inclined plate 152 is connected to the edge of the straight plate 151 away from the arc groove 121. The angle of the inclined plate 152 is the same as the rotation angle of the semi-cylindrical block 123 when the transmission rod 124 and the lower limit block of the transmission rod 14 abut against each other. A side plate 153 parallel to the straight plate 151 is connected to the side of the connecting plate 113 located outside the first connecting housing 11. The side plate 153 and the inclined plate 152 are connected by a folded plate 154. The folded angle of the folded plate 154 is away from the first connecting housing 11.

[0033] A sealing rubber 16 is provided on the side plate 153, and the distance between the side plate 153 and the adjacent side plate 112 is less than the thickness of the sealing rubber 16.

[0034] A transmission rod upper limit block 17 is vertically connected to the inner surface of the top plate 111. When the spring pulls the transmission rod 124 to abut against the transmission rod lower limit block 14, it also abuts against the transmission rod upper limit block 17.

[0035] A transmission rod limiting block 18 is provided on the inner surface of the side plate 112 connected to the connecting plate 113. When the semi-cylindrical block 123 coincides with the arc groove 121, the transmission rod 124 abuts against the transmission rod limiting block 18.

[0036] The second connector 2 is fixed opposite to the first connector 1 after rotating it 180°. The fixing method can be welding or bolt installation. The width of the first connector 1 and the second connector 2 should ensure the stable locking of the two rotating locking tongues.

[0037] The fixing positions of the first connector 1 and the second connector 2 are determined according to the construction needs. The first connector 1 and the second connector 2 can be fixed inside the beams of the corresponding containers, and the lower edge of the side plate 112 is flush with the outer edge of the beam, so as not to hinder the merging of the two beams. The width of the first connector 1 is determined according to the specific situation of the connection of the two containers.

[0038] During the splicing or stacking of container bodies, the relative movement of the guide head 15 pushes the two rotating locking tongues from the disengaged state (e.g., Figure 2 As shown) enters a free state (such as Figure 3 (As shown) and impart elastic potential energy to the spring, and by releasing the elastic potential energy of the spring, both rotating bolts are pulled from the free state back to the self-locking state (as shown). Figure 4 As shown, a tight self-locking connection is achieved between the housings. The rotation range of the rotating lock tongue is limited by three limit blocks, and the seal rubber 16 is used to seal the guide head 15 with the connecting shell; thus, a firm connection and fixation is achieved between beams or columns of adjacent housings that are horizontally spliced ​​or vertically stacked.

[0039] The guide head 15 is made of high-strength material and is fixed to the first / second connecting housing 21. Its arc-shaped groove 121 provides a rotation track for the rotating latch. There is a 10mm gap between the outer side of the guide head 15 and the connector housing to facilitate adjustment for errors during housing positioning and installation. All guide heads 15 in the same group are conical in shape to achieve guiding positioning and to drive the rotating latch.

[0040] The rotating latch consists of a semi-cylindrical block 123 and a transmission rod 124. The transmission rod 124 can rotate in the area between the middle limit block and the lower limit block of the transmission rod to switch the rotating latch between a free state and a self-locking state. The transmission rod 124 is fixed to the semi-cylindrical block 123, and an energy storage spring is connected to it. The rotation of the transmission rod 124 in the area between the middle limit block and the lower limit block of the transmission rod imparts or releases the elastic potential energy of the energy storage spring.

[0041] The upper limit block of the transmission rod provides a fulcrum for the transmission rod 124 in the self-locking state. The upper limit blocks of the transmission rods of the two connectors work together to ensure that the rotating latch remains in the self-locking state when in close contact. The middle limit block of the transmission rod provides a fulcrum for the rotating latch in the free state, ensuring that the rotating latch does not rotate beyond its range under the pressure of the guide head 15. The lower limit block of the transmission rod provides a limiting fulcrum for the rotating latch in the disengaged state, ensuring that the rotating latch does not rotate beyond its range under the action of the spring mechanism in the disengaged state. At the same time, the lower limit blocks of the transmission rods of the two connectors work together to ensure that the rotating latch remains in the self-locking state.

[0042] The sealing rubber is a spherical rubber material with anti-aging properties and high compression elasticity, and it is fitted onto the side plate 153 of the guide head 15. The connecting housing and the guide head 15 are sealed by compressing the sealing rubber 16. The connecting housing is made of high-strength material.

[0043] During installation, after the first connector 1 and the second connector 2 are aligned, the flat surface of the semi-cylindrical block 123 of the first connector 1 fits against the inclined plate 152 of the guide head 15 of the second connector 2. The straight plate 151 of the first connector 1 is flush with the straight plate 151 of the second connector 2. During the contact process of the first connector 1 and the second connector 2, guided by the guide head 15, the two arc-shaped grooves 121 are joined into a cylindrical shape, and the semi-cylindrical blocks 123 of the first connector 1 and the semi-cylindrical blocks 123 of the second connector 2 are aligned into cylinders. Then, the corresponding semi-cylindrical blocks 123 are rotated by the spring, and the two rotating locking tongues are locked together. The sealing rubber 16 seals the gap between the corresponding side plate 112 and the edge plate 153. The straight plate 151 is close to the plate on the outer side of the lower limit block of the transmission rod of the opposite connector.

[0044] This container's tight-fitting self-locking connection device can be installed at beam ends, beam mid-sections, column ends, or column mid-sections. During installation and locking, it has three states: unhooked, free, and self-locking. 1. When the guide head 15 is not inserted into the corresponding connector, the transmission rod 124 contacts the lower limit block of the transmission rod under the action of the spring, and the two connectors are in the disengaged state; 2. When the guide head 15 pushes the rotating locking tongue to make the transmission rod 124 move away from the upper limit block and swing towards the middle limit block, the two connectors are in a free state; 3. When the relative movement of the guide head 15 ends, the two connectors merge, the spring releases its elastic potential energy, and when the transmission rod 124 contacts the lower / lower limit point of the transmission rod under the action of the spring, the two connectors are in a self-locking state.

[0045] The connection between adjacent container bodies is the process of two connectors going from a decoupled state to a free state, and then from a free state to a self-locking state. The kinetic energy for the state transition depends on the movement of the container bodies during splicing or stacking and is carried out automatically. No manual bolt connection or welding is required during the process.

[0046] Because the first / second connector 2 can be set at any part of the container column or beam, and the connection process does not require manual intervention, but is carried out automatically by relying on the kinetic energy provided by the movement of splicing or stacking the containers, the construction speed is improved and the connection difficulty between the container beams or between the columns is greatly reduced. It can be set in the dead zone area of ​​traditional connection methods to connect the containers.

[0047] There is a 10mm gap between the guide head 15 of the first connector 1 and the connecting housing of the second connector 2, which can be used to adjust the installation error and reduce the requirements of the connector for installation accuracy.

[0048] Two sealing rubber balls 16 are provided on the guide head 15. These are spherical rubber materials that are resistant to aging and have high compression elasticity, and are located on the outside of the guide head 15. The gap between the guide head 15 and the connecting housing is sealed by compressing the sealing rubber balls 16.

[0049] The rotating locking tongue has only a 1mm gap with the arc-shaped groove 121, and lubricating oil is applied between them. This ensures that the rotating locking tongue can rotate with almost no friction while maintaining a tight contact with the arc-shaped groove 121. Simultaneously, because the rotating locking tongue and the arc-shaped groove 121 are in a tight contact, when in the self-locking state, the rotating locking tongue can firmly fix the guide head 15 through self-locking, thus making the connection between the two connectors a structurally rigid connection capable of transmitting bending moment, shear force, and axial force. This enhances the cooperative force-bearing capacity between the spliced ​​and stacked enclosures and the earthquake and wind resistance of the stacked system. Example

[0050] The method of using the container tight-fitting self-locking connection device provided in this embodiment is to connect adjacent containers using the container tight-fitting self-locking connection device described in Embodiment 1.

[0051] When adjacent containers are an upper container and a lower container, the upper container is hoisted above the lower container, and after the first connector 1 and the second connector 2 are aligned, the upper container is slowly lowered.

[0052] When the upper and lower containers are pressed together, the first rotary locking tongue 12 and the second rotary locking tongue 22 lock together through relative movement, thereby achieving a fixed connection between adjacent containers.

[0053] When the adjacent containers are the left container and the right container, push the left container to the side of the right container. After the first connector 1 and the second connector 2 are aligned, slowly push the left container.

[0054] When two containers are pressed together, the first rotary locking tongue 12 and the second rotary locking tongue 22 lock together through relative movement, thus achieving a fixed connection between the adjacent containers.

[0055] During the splicing or stacking of container bodies, the relative movement of the guide head 15 pushes the sliding lock tongue from the unhooked state to the free state and imparts elastic potential energy to the energy storage spring. By releasing the elastic potential energy of the energy storage spring, the sliding lock tongue is pulled back from the free state to the self-locking state, realizing the close self-locking between the containers. This achieves a firm connection and fixation between beams or columns of adjacent containers in horizontal splicing or vertical stacking.

[0056] This embodiment breaks through the traditional connection paradigm of bolted or welded connections between container bodies that require manual intervention, and provides a new, close-fitting, self-locking connection method that requires no manual intervention. It greatly reduces the difficulty of connecting beams or columns between container bodies, and can be installed in areas where traditional connection methods are ineffective. Simultaneously, this connector has high strength and strong resistance to deformation, improving the strength of the connection between container bodies; its simple structure and high degree of automation in installation enhance the collaborative stress-bearing capacity between stacked containers and the seismic and wind resistance of the stacking system, simplifying construction control requirements, reducing construction difficulty, increasing construction speed, and expanding the application scenarios of prefabricated modular container data centers.

[0057] The container sealing self-locking connection device and its usage method according to the present invention have been described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various modifications can be made to the container sealing self-locking connection device and its usage method according to the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A container sealing and self-locking connection device, characterized in that, Includes a first connector and a second connector, wherein, The first connector includes a first connecting housing, and a first rotating locking tongue is provided in the first connecting housing; The second connector includes a second connecting housing, in which a second rotary locking tongue is provided; The first connector and the second connector are fixed to the relative positions of adjacent containers through the first connecting housing and the second connecting housing, respectively, and the first connector and the second connector are facing each other. When the adjacent containers are pressed together, the first rotating locking tongue and the second rotating locking tongue are locked together through relative movement, thereby realizing the fixed connection of the adjacent containers.

2. The container tight-fitting self-locking connection device according to claim 1, characterized in that, The second connector is a structure in which the first connector is rotated 180°.

3. The container tight-fitting self-locking connection device according to claim 2, characterized in that, The first connecting housing includes a top plate and side plates that are perpendicularly connected to the two edges of the top plate. A connecting plate is perpendicularly connected to the bottom edge of one of the side plates. An arc-shaped groove with a semi-circular longitudinal section is connected along the edge of the connecting plate facing the inside of the first connecting housing. The opening of the arc-shaped groove is located in the middle of the two side plates. The first rotating latch includes a semi-cylindrical block adapted to the arc-shaped groove. An elongated hole is formed along the arc centerline of the portion of the arc-shaped groove located inside the first connecting housing. A transmission rod is provided on the arc-shaped surface of the semi-cylindrical block. The transmission rod passes through the elongated hole. The upper end of the transmission rod is connected to a side plate opposite to the opening of the arc-shaped groove via a spring. A lower limit block for the transmission rod is provided along the edge of the arc-shaped groove located inside the first connecting housing. The spring pulls the transmission rod to abut against the lower limit block. The semi-cylindrical block rotates within the arc-shaped groove, and the rotation angle is less than 90°.

4. The container sealing self-locking connection device according to claim 3, characterized in that, A guide head is connected to the outer edge of the arc-shaped groove located outside the first connecting housing. The guide head includes a straight plate connected to the edge, which is flush with the opening of the arc-shaped groove. An inclined plate is connected to the edge of the straight plate away from the arc-shaped groove. The angle of the inclined plate is the same as the rotation angle of the semi-cylindrical block when the transmission rod abuts against the lower limit block of the transmission rod. A side plate parallel to the straight plate is connected to the side of the connecting plate located outside the first connecting housing. The side plate and the inclined plate are connected by a folded plate, and the folded angle of the folded plate is away from the first connecting housing.

5. The container sealing self-locking connection device according to claim 4, characterized in that, A sealing rubber is provided on the side plate, and the distance between the side plate and the adjacent side plate is less than the thickness of the sealing rubber.

6. The container sealing self-locking connection device according to claim 5, characterized in that, When the first connector and the second connector are aligned, the flat surface of the semi-cylindrical block of the first connector is in contact with the inclined plate of the guide head of the second connector, and the straight plate of the first connector is flush with the straight plate of the second connector. During the contact process between the first connector and the second connector, guided by the guide head, the semi-cylindrical blocks of the first connector and the semi-cylindrical blocks of the second connector are first aligned into cylinders, and then the corresponding semi-cylindrical blocks are rotated by the spring; the sealing rubber seals the gap between the corresponding side plates and edge plates.

7. The container tight-fitting self-locking connection device according to claim 3, characterized in that, A transmission rod upper limit block is vertically connected to the inner surface of the top plate. The spring pulls the transmission rod to abut against the transmission rod lower limit block and simultaneously abuts against the transmission rod upper limit block.

8. The container sealing self-locking connection device according to claim 3, characterized in that, A limiting block for the transmission rod is provided on the inner surface of the side plate connected to the connecting plate. When the semi-cylindrical block coincides with the arc groove, the transmission rod abuts against the limiting block for the transmission rod.

9. The container sealing self-locking connection device according to claim 3, characterized in that, The first connector and the second connector are respectively fixed inside the beams of the corresponding containers, and the lower edge of the side plate is flush with the outer edge of the beam.

10. A method of using a container sealing self-locking connection device, characterized in that, Connecting adjacent containers using the container tight-fitting self-locking connection device according to any one of claims 1-9 includes: The upper container is hoisted above the lower container, and after the first connector and the second connector are aligned, the upper container is slowly lowered. When the adjacent containers are pressed together, the first rotary locking tongue and the second rotary locking tongue lock together through relative movement, thereby achieving a fixed connection between the adjacent containers.

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