Container and combination container

Abstract

The application provides a container, comprising: a top plate, a top corner piece, a top beam and a sealing beam, the top plate comprises an upper top plate, a top plate interlayer and a lower top plate arranged in sequence from top to bottom; four top corner pieces are respectively located at four corners of the top plate, the top corner piece comprises two inner side walls facing the inner side of the top plate, two outer side walls facing the outer side of the top plate and a bottom surface, the inner side walls are provided with water guide holes, and the outer side wall and / or the bottom surface of at least one of the four top corner pieces is provided with a drainage hole; the top beam is located at the outer peripheral edge of the top plate, two ends of the top beam are connected to two top corner pieces, the top beam is configured as a drainage groove with an opening upward and in communication with the water guide hole, and the side edge of the top beam is connected to the bottom surface of the upper top plate; the sealing beam is connected to the top beam and the lower top plate and is located at the outer side of the top plate interlayer, and the application has the characteristics of small processing difficulty, low manufacturing cost and being beneficial to the protection of the thermal insulation layer, so that the thermal insulation function of the container is ensured.

Description

Technical Field

[0001] This application relates generally to the field of container technology, and more specifically to a container and a combination container. Background Technology

[0002] Containers are modular equipment used for transporting packaged or unpackaged goods and are easy to load, unload, and handle using mechanical equipment. They play an important role in global freight transport.

[0003] Existing container roofs are generally flat, with a corrugated design and no dedicated drainage structure. In humid environments such as rain and snow, water easily accumulates on the roof, causing it to seep into the container. Furthermore, prolonged and extensive water flow down the side walls can cause corrosion and contamination of the container side panels, as well as moisture penetration, thus shortening the container's lifespan and reducing its insulation effectiveness. This need for roof waterproofing is particularly acute when containers are combined, such as several containers assembled into a container house.

[0004] The common designs for container roof drainage structures on the market are as follows:

[0005] 1) The top plate is designed as a convex structure with a slight bulge in the middle. The structure, which is high in the middle and low on both sides, prevents water from accumulating on the top plate and makes it easy to drain. However, this structure has high process requirements, is difficult to process, and increases production costs.

[0006] 2) The top plate is designed with a grooved drainage channel. This structure is often used in containers such as dry cargo boxes where the insulation effect is not high. It is not very versatile and the drainage outlet is easy to get clogged. When containers are used in combination, the drainage between the containers cannot be interconnected. In case of heavy rain, rainwater will accumulate over a large area and cannot be discharged in time. At the same time, it increases the complexity of the container top plate structure and is inconvenient to process.

[0007] 3) External drainage device: This design is generally based on the roof structure, with an external drainage trough to quickly drain water. However, it increases costs and requires separate installation, increasing labor costs. It is also not suitable for container combination.

[0008] Therefore, there is a need to provide a container and a combination container to at least partially solve the above problems. Summary of the Invention

[0009] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0010] To at least partially solve the above problems, the first aspect of this application provides a container, comprising:

[0011] The top plate includes an upper top plate, a top plate interlayer, and a lower top plate arranged sequentially from top to bottom.

[0012] The four corner pieces are located at the four corners of the top plate. Each corner piece includes two inner sidewalls facing the inner side of the top plate, two outer sidewalls facing the outer side of the top plate, and a bottom surface. Each inner sidewall is provided with a water inlet hole. At least one of the four corner pieces has a drainage hole on its outer sidewall and / or bottom surface.

[0013] A top beam, located at the outer periphery of the top plate, with its two ends connected to two corner brackets, is constructed as a drainage channel opening upwards and communicating with the water inlet. The side of the top beam is connected to the bottom surface of the upper top plate.

[0014] A sealing beam is connected to the top beam and the lower top plate, and is located on the outside of the top plate interlayer.

[0015] According to the container of this application, the drainage channel and the top plate are integrated through the structure of the top beam. Compared with the existing structure of the top plate with a central protrusion and the existing container top plate structure with the top plate bent into multiple drainage channels, the processing difficulty is lower and the manufacturing cost is lower. Compared with the structure of external drainage channels, it avoids additional costs and facilitates drainage when the containers are used in combination. In addition, the combined installation of the top plate and the top beam makes the top beam a structure that strengthens the sealing of the top plate interlayer within the top plate, which helps prevent rainwater from corroding the top plate interlayer, thereby ensuring the insulation function of the container. In summary, the container of this application has the characteristics of low processing difficulty, low manufacturing cost, and protection of the insulation layer to ensure the insulation function of the container.

[0016] Optionally, in the cross-sectional structure of the top beam, the top beam comprises the following components connected in sequence:

[0017] The connecting portion extends between the upper top plate and the top plate interlayer;

[0018] An inclined extension portion is inclinedly disposed to fit the sidewall of the top plate interlayer;

[0019] Horizontal extension; and

[0020] Vertical extension;

[0021] The inclined extension, the horizontal extension, and the vertical extension surround and form the drainage groove.

[0022] Optionally, the top end of the vertical extension has a flange that extends toward the top plate and is higher than the connecting portion.

[0023] Optionally, the two ends of the sealing beam are respectively connected to the two top corner pieces, and the bottom edge of the sealing beam is connected to the edge of the lower top plate near the top beam.

[0024] Optionally, the sealing beam has an inverted "L" shaped cross-section, with its top surface conforming to the bottom surface of the top beam and extending toward the interior of the top plate interlayer.

[0025] Optionally, the top beam includes a top side beam extending along the length direction of the top plate and a top cross beam extending along the width direction of the top plate.

[0026] Optionally, the water inlet includes a sequentially connected arc-shaped side, a bottom horizontal side, a vertical side, and a top horizontal side. The arc-shaped side protrudes towards the inclined extension. The bottom horizontal side and the top horizontal side are both parallel to the horizontal extension, and the vertical side is parallel to the vertical extension; and / or

[0027] A filter screen is installed inside the water inlet.

[0028] A second aspect of this application provides a combined container, comprising at least two containers arranged side-by-side, wherein the containers include:

[0029] The top plate includes an upper top plate, a top plate interlayer, and a lower top plate arranged sequentially from top to bottom.

[0030] Corner fittings, four of which are located at the four corners of the top plate, each corner fitting includes two inner sidewalls facing the inner side of the top plate, two outer sidewalls facing the outer side of the top plate, and a bottom surface. Each inner sidewall is provided with a water inlet hole, and at least one of the four corner fittings has a drainage hole on its outer sidewall and / or its bottom surface.

[0031] The top beam is located on the outer periphery of the top plate. Both ends of the top beam are connected to the two top corner pieces. The top beam is constructed as a drainage channel with an upward opening and communicating with the water inlet hole. The side of the top beam is connected to the bottom surface of the upper top plate.

[0032] According to the container of this application, by assembling the containers, it is possible to choose whether or not to open holes on the contact surfaces between the corner fittings based on the normal climate of the location; if the amount of rain is small, drainage holes can be left unopened on the contact surfaces between the corner fittings, so that each container forms an independent water accumulation loop for drainage, which can drain water quickly and reduce the water flow rate; if the amount of rain is large, drainage holes can be opened on the contact surfaces of the corner fittings, so that the drainage channels between the containers are interconnected, ensuring that water can be drained quickly when the amount of water is large and the water is unevenly distributed.

[0033] Optionally, the containers are connected to each other via the drainage holes on the outer side walls of the corner pieces; and / or

[0034] Fasteners are provided between adjacent containers, and corresponding connection holes are provided between adjacent top beams. The fasteners are inserted through the connection holes between the top beams of adjacent containers to connect the adjacent containers.

[0035] Optionally, a sealing assembly may be included, the sealing assembly comprising:

[0036] Sealing tape, the sealing tape being adhered to the outer wall of the top beam and located between the top beams of adjacent containers;

[0037] A sealing plate, wherein the sealing plate is disposed on the top surface of the flange of the top beam, the sealing plate extends along the length direction of the top beam, and both sides of the sealing plate are folded inward to respectively engage with the flanges of adjacent top beams; and

[0038] A sealing strip is disposed between the top panels of adjacent containers, and the sealing strip is disposed at the bottom of the top panel.

[0039] Optionally, the sealing strip includes:

[0040] A bonding portion, wherein the bonding portion is bonded to the bottom surface of the lower top plate, and both sides of the bonding portion extend to adjacent lower top plates; and

[0041] The elastic part is hollow inside and is located between adjacent top plate interlayers, and is abutted against the side wall of the top plate interlayer. Attached Figure Description

[0042] The following drawings, illustrating embodiments of this application, are incorporated herein by reference and are used to understand this application. The drawings illustrate embodiments of this application and their descriptions, serving to explain the principles of this application. In the drawings,

[0043] Figure 1 This is a top view of the top of a container according to a preferred embodiment of this application;

[0044] Figure 2 For along Figure 1 A schematic diagram of the cross-section intercepted by the centerline AA;

[0045] Figure 3 for Figure 2 An enlarged schematic diagram of part C in the diagram;

[0046] Figure 4 For along Figure 1 A schematic diagram of the cross-section cut by the centerline BB;

[0047] Figure 5a This is a schematic diagram of the top corner component from a top view.

[0048] Figure 5b for Figure 5a A schematic diagram of the sidewall structure of the center corner component in the D direction;

[0049] Figure 5c for Figure 5a A schematic diagram of the sidewall structure of the center corner component in the E direction;

[0050] Figure 5d for Figure 5a A schematic diagram of the sidewall structure of the center corner component in the F direction;

[0051] Figure 5e for Figure 5a A schematic diagram of the sidewall structure of the center corner component in the G direction;

[0052] Figure 6 This is a schematic diagram of the arrangement of combined containers according to another preferred embodiment of this application;

[0053] Figure 7 for Figure 6 A schematic diagram of the cross-section intercepted by the centerline HH; and

[0054] Figure 8 This is a schematic diagram of the sealing strip.

[0055] Explanation of reference numerals in the attached figures

[0056] 100: Top plate 101: Upper top plate

[0057] 102: Top slab mezzanine; 103: Lower top slab.

[0058] 120: Top beam; 121: Top side beam

[0059] 122: Top crossbeam; 123: Connecting part

[0060] 124: Inclined extension 125: Horizontal extension

[0061] 126: Vertical extension 127: Flanged edge

[0062] 130: Corner piece; 131: Inner wall

[0063] 132: Outer wall; 133: Water inlet hole

[0064] 133a: Curved edge; 133b: Bottom horizontal edge

[0065] 133c: Vertical edge; 133d: Top horizontal edge

[0066] 134: Filter screen 135: Drain hole

[0067] 136: Drain pipe 137: Drain hose

[0068] 140: Sealing beam; 210: Fastener

[0069] 211: Fastening bolt 212: Fastening nut

[0070] 221: Sealing tape 222: Sealing plate

[0071] 223: Sealing strip; 223a: Adhesive part

[0072] 223b: Elastic part X1: Length direction of the top plate

[0073] X2: Width direction of the top plate Detailed Implementation

[0074] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0075] In this document, ordinal numbers such as “first” and “second” used in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0076] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0077] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0078] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0079] First Implementation Method

[0080] Figure 1 -5 illustrates a container according to a first embodiment of this application, the container including: a top plate 100, a top corner piece 130, a top beam 120, and a sealing beam 140.

[0081] Specifically, refer to Figure 2 , Figure 4 The top plate 100 includes an upper top plate 101, a top plate interlayer 102, and a lower top plate 103 arranged sequentially from top to bottom.

[0082] The four corner pieces 130 are located at the four corners of the top plate 100. Referring to Figure 5, each corner piece 130 includes two inner sidewalls 131 facing the inner side of the top plate 100 (the D and E direction sidewalls of the corner piece 130 in Figure 5), two outer sidewalls 132 facing the outer side of the top plate 100 (the F and G direction sidewalls of the corner piece 130 in Figure 5), and a bottom surface. Figure 3 As shown, each of the inner sidewalls 131 is provided with a water inlet hole 133, and at least one of the four corner pieces 130 is provided with a drain hole 135 on its outer sidewall 132 and / or bottom surface.

[0083] The top beam 120 is located on the outer periphery of the top plate 100. The two ends of the top beam 120 are connected to two top corner pieces 130 respectively. The top beam 120 is constructed as a drainage channel with an upward opening and communicating with the water inlet hole 133. The side of the top beam 120 is connected to the bottom surface of the upper top plate 101.

[0084] The sealing beam 140 is connected to the top beam 120 and the lower top plate 103, and is located on the outside of the top plate interlayer 102.

[0085] According to the container of this application, the drainage channel and the top plate 100 are integrated through the top beam 120 structure. Compared with the existing structure of the top plate with a central protrusion and the existing container top plate structure with the top plate bent into multiple drainage channels, the processing difficulty is lower and the manufacturing cost is lower. Compared with the structure of external drainage channels, it avoids additional costs and facilitates drainage when the containers are used in combination. In addition, through the combined installation of the top plate 100 and the top beam 120, the top beam 120 becomes a structure that strengthens the sealing of the top plate interlayer 102 within the top plate 100, which helps prevent rainwater from corroding the top plate interlayer 102, thereby ensuring the insulation function of the container. In summary, the container of this application has the characteristics of low processing difficulty, low manufacturing cost, and protection of the insulation layer to ensure the insulation function of the container.

[0086] Specifically, the following is a detailed description of each component of the container.

[0087] For the composite structure of the top plate 100, please refer to Figure 2-4 The bottom surface of the upper top plate 101 is fitted to the top surface of the top plate interlayer 102, and the bottom surface of the top plate interlayer 102 is fitted to the top surface of the lower top plate 103. The top plate interlayer 102 can be made of rock wool or polyurethane foam. Both rock wool and polyurethane foam have good thermal insulation properties, giving the top plate 100 good thermal insulation performance. It should be noted that rock wool has less waterproof performance than polyurethane foam; prolonged exposure to a damp environment will affect the thermal insulation performance of the rock wool-made top plate interlayer 102.

[0088] Therefore, waterproofing of the top slab interlayer 102 is also a key design focus of this application. The structure of the top beam 120 and sealing beam 140 in this application effectively solves this problem.

[0089] In detail, refer to Figure 1 The top beam 120 includes a top side beam 121 and a top cross beam 122. The cross-section of the top side beam 121 is the same as that of the top cross beam 122. The difference is that the top side beam 121 extends along the length direction X1 of the top plate 100, while the top cross beam 122 extends along the width direction X2 of the top plate 100. Therefore, the following is a general introduction to the top beam 120, which applies to the top cross beam 122 and the top side beam 121.

[0090] See Figure 3In a horizontal direction away from the top plate 100 (which could be the width direction X2 or the length direction X1 of the top plate 100), the top beam 120 includes a connecting portion 123, an inclined extension 124, a horizontal extension 125, and a vertical extension 126 connected in sequence. The connecting portion 123 extends between the upper top plate 101 and the top plate interlayer 102. The inclined extension 124 is disposed against the side wall of the top plate interlayer 102. The inclined extension 124, the horizontal extension 125, and the vertical extension 126 surround and form a drainage channel extending along the length or width direction of the top plate 100. The top end of the vertical extension 126 is bent towards the horizontal direction of the top plate 100 to form a flange 127, and the flange 127 is higher than the connecting portion 123, thus facilitating the prevention of water overflow and preventing water from corroding the side wall of the container. Because the connecting portion 123 extends between the upper top plate 101 and the top plate interlayer 102, and the inclined extension portion 124 is fitted against the side wall of the top plate interlayer 102, water accumulated on the upper top plate 101 flows into the drainage channel through the connecting portion 123 and the inclined extension portion 124, rather than accumulating between the top beam 120 and the top plate 100, thus effectively preventing water from eroding the top plate interlayer 102. Figure 1 As shown, there are two top side beams 121, which are respectively located on the two length sides of the top plate 100. There are also two top cross beams 122, which are respectively located on the two width sides of the top plate 100. The two ends of the top side beams 121 are respectively connected to the inner sidewalls 131 of the corner pieces 130 at both ends of the top plate 100 in the length direction, while the two ends of the top cross beams 122 are respectively connected to the inner sidewalls 131 of the two corner pieces 130 in the width direction of the top plate 100.

[0091] Furthermore, in combination Figure 3 As shown, the sealing beam 140 is disposed at the bottom of the top crossbeam 122 and the top side beam 121. The sealing beam 140 extends along the length direction of the corresponding top crossbeam 122 or top side beam 121, and both ends of the sealing beam 140 are also connected to the inner wall 131 of the corner piece 130 at both ends of the corresponding top crossbeam 122 or top side beam 121. The cross-section of the sealing beam 140 is an inverted "L" shape. In the cross-sectional structure of the sealing beam 140, the top surface of the sealing beam 140 is attached to the bottom surface of the top beam 120 and extends toward the interior of the top plate interlayer 102, while the bottom edge of the sealing beam 140 is connected to the edge of the lower top plate 103 near the top beam 120. Thus, the outer side of the top plate interlayer 102 is surrounded by the upper top plate 101, the top beam 120, the sealing beam 140, and the lower top plate 103, preventing water from penetrating into the top plate interlayer 102 and extending the service life of the top plate interlayer 102.

[0092] After the accumulated water is directed into the drainage channel on the top beam 120, it is mainly discharged through the corner piece 130. The structure of the corner piece 130 is described in detail below.

[0093] Reference Figure 3 As shown in Figure 5, the corner piece 130 has a cuboid structure with a fixing block at its top. A filter screen 134 is installed inside a water inlet hole 133 on the inner wall 131 of the corner piece 130 to filter water entering the corner piece 130 from the drainage trough. The water inlet hole 133 includes a sequentially connected arc-shaped side 133a, a bottom horizontal side 133b, a vertical side 133c, and a top horizontal side 133d. The arc-shaped side 133a protrudes towards the inclined extension 124, the bottom horizontal side 133b and the top horizontal side 133d are parallel to the horizontal extension 125, and the vertical side 133c is parallel to the vertical extension 126. The shape of the water inlet hole 133 is adapted to the cross-sectional structure of the drainage trough, allowing water to flow into the corner piece 130 quickly even when the drainage trough is full. The outer wall 132 of the corner piece 130 may be provided with a drain hole 135, the opening of which is circular. Figures 5a to 5e As shown, no drainage hole 135 is provided on the side wall in the F direction of the corner bracket 130, while the side wall in the G direction of the corner bracket 130 may or may not have a drainage hole 135, with the choice of opening depending on the weather conditions of the container's location. However, at least one drainage hole 135 must be provided on one of the four corner brackets 130 on the container to drain water accumulated in the drainage channel. Figure 1 The container shown has drainage holes 135 on the outer side wall 132 of each corner piece 130. Figure 1 The container has drainage pipes 136 connected to the drainage holes 135 of its four corner pieces 130, and drainage hoses 137 connected to the drainage pipes 136. The drainage hoses 137 can be connected to water storage devices or underground pipelines to collect and treat water.

[0094] Second Implementation Method

[0095] Figure 6 A combined container according to a second embodiment of this application is schematically shown. Except for the connecting structures between the containers, the container according to the second embodiment has a substantially the same construction as the container of the first embodiment. Structures with the same function are given the same or similar reference numerals. Therefore, for the sake of brevity, only the distinguishing features will be described in detail here.

[0096] See Figure 6 The combined container comprises twenty containers arranged as shown in the diagram. Adjacent containers are connected by drainage holes 135 on the outer side wall 132 of the corner bracket 130, forming a unified water-collecting loop between the containers. Each corner bracket 130 located at the edge of the combined container is equipped with a drainage hose 137 to effectively drain water from the water-collecting loop of the combined container.

[0097] For information on the connection between containers, please refer to [link / reference]. Figure 7 Fasteners 210 are provided between adjacent top beams 120 of the container. At the connection position of the top beams 120 of the container, the side walls of the vertical extensions 126 of adjacent top beams 120 are provided with corresponding connection holes. The fasteners 210 include fastening bolts 211 and fastening nuts 212. The end of the fastening bolt 211 passes through the connection hole through the adjacent vertical extension 126, and the fastening nut 212 is sleeved on the end of the fastening bolt 211 and threadedly connected to the fastening bolt 211. When the fastening nut 212 is tightened, the adjacent containers are connected and fixed.

[0098] To enhance the sealing between containers, see Figure 7 The combined container also includes a sealing assembly. Due to the sealing assembly, even with the sealing beam 140 at the joint of the container removable, a sealing effect on the top interlayer 102 is still guaranteed. The sealing assembly includes: sealing tape 221, sealing plate 222, and sealing strip 223. Figure 3 The top beam 120 structure has sealing tape 221 attached to the outer wall 132 of the vertical extension 126 and located between adjacent vertical extensions 126, extending along the length of the top beam 120. A sealing plate 222 is disposed on the top surface of the flange 127 of the top beam 120, extending along the length of the top beam 120, with both sides of the sealing plate 222 folded inward to engage with the edges of the flanges 127 of adjacent top beams 120, thereby concealing the gaps between the top beams 120. A sealing strip 223 is disposed between the top plates 100 of adjacent containers, with the sealing strip 223 located at the bottom of the top plate 100. See also... Figure 8 The sealing strip 223 extends along the length of the top beam 120 and can be made of rubber. The sealing strip 223 includes an adhesive portion 223a and an elastic portion 223b. The adhesive portion 223a has an arched cross-section, and its top surface is fitted against the bottom surfaces of the lower top plates 103 on both sides. The elastic portion 223b is hollow and also extends along the length of the top beam 120. The elastic portion 223b is disposed between the vertical sidewalls of adjacent top plate interlayers 102, and its two outer sidewalls are respectively fitted and abutted against the vertical sidewalls of the adjacent top plate interlayers 102. The sealing assembly effectively seals the gaps between the containers, preventing rainwater penetration.

[0099] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0100] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A modular container, characterized in that, The combined container includes at least two containers arranged side by side, and the containers include: The top plate includes an upper top plate, a top plate interlayer, and a lower top plate arranged sequentially from top to bottom. The four corner pieces are located at the four corners of the top plate. Each corner piece includes two inner sidewalls facing the inner side of the top plate, two outer sidewalls facing the outer side of the top plate, and a bottom surface. Each inner sidewall is provided with a water inlet hole. At least one of the four corner pieces is provided with a drain hole on its outer sidewall. At least a portion of the drain holes in the four corner pieces are adapted to communicate with the drain holes of the adjacent container to form a water accumulation loop. The top beam is located on the outer periphery of the top plate. Both ends of the top beam are respectively connected to the two top corner pieces. The top beam is constructed as a drainage channel with an upward opening and communicating with the water inlet hole. The side of the top beam is connected to the bottom surface of the upper top plate. A sealing beam, connected to the top beam and the lower top plate, and located on the outside of the top plate interlayer; and A drain conduit, located outside another portion of the drain holes on the four corner pieces, is connected to the drain holes to drain water from the water accumulation circuit. In the cross-sectional structure of the top beam, the top beam includes a connecting part, an inclined extension part, a horizontal extension part, and a vertical extension part that are integrally formed and connected in sequence. The connecting part extends to the space between the upper top plate and the top plate interlayer. The inclined extension part is inclined and conforms to the side wall of the top plate interlayer to guide water on the top plate to the drainage channel. The inclined extension part, the horizontal extension part, and the vertical extension part together surround and form the drainage channel. The vertical extension has an integrally formed flange at its top end, which extends toward the top plate and is higher than the connecting part to prevent water from overflowing the drainage groove. The water inlet hole includes an arc-shaped side, a bottom horizontal side, a vertical side, and a top horizontal side connected in sequence. The arc-shaped side protrudes towards the inclined extension. The bottom horizontal side and the top horizontal side are both parallel to the horizontal extension, and the vertical side is parallel to the vertical extension. Furthermore, the sealing beam is connected to the two top corner pieces at both ends. The sealing beam is located below the top beam. The top surface of the sealing beam is attached to the bottom surface of the horizontal extension and extends toward the interior of the top plate interlayer. The bottom edge of the sealing beam is connected to the edge of the lower top plate near the top beam, so that the top plate interlayer is surrounded by the upper top plate, the top beam, the sealing beam, and the lower top plate to prevent water from seeping into the top plate interlayer.

2. The combined container according to claim 1, characterized in that, The cross-section of the sealing beam is inverted L-shaped.

3. The combined container according to claim 1, characterized in that, The top beam includes a top side beam extending along the length direction of the top plate and a top cross beam extending along the width direction of the top plate.

4. The combined container according to claim 1, characterized in that, A filter screen is installed inside the water inlet.

5. The combined container according to claim 1, characterized in that, Fasteners are provided between adjacent containers, and corresponding connection holes are provided between adjacent top beams. The fasteners are inserted through the connection holes between the top beams of adjacent containers to connect the adjacent containers.

6. The combined container according to claim 1, characterized in that, Includes a sealing assembly, the sealing assembly comprising: Sealing tape, the sealing tape being adhered to the outer wall of the top beam and located between the top beams of adjacent containers; A sealing plate, wherein the sealing plate is disposed on the top of the top beam, the sealing plate extends along the length direction of the top beam, and both sides of the sealing plate are folded inward to respectively engage with adjacent top beams; and A sealing strip is disposed between the top panels of adjacent containers, and the sealing strip is disposed at the bottom of the top panel.

7. The combined container according to claim 6, characterized in that, The sealing strip includes: A bonding portion, wherein the bonding portion is bonded to the bottom surface of the lower top plate, and both sides of the bonding portion extend to adjacent lower top plates; and The elastic part is hollow inside and is located between adjacent top plate interlayers, and is abutted against the side wall of the top plate interlayer.

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