Connection device and container having same

Abstract

The present application relates to a connecting device and a container with the same, the connecting device comprises at least one connecting seat, a connecting bolt and a connecting shaft. The connecting seat is used to be fixed to the top corner of the container and is provided with a shaft hole. One end of the connecting bolt is rotatably connected with the connecting seat, and the other end is provided with a fastening part used to be fastened with an adjacent container. The connecting shaft is arranged in the shaft hole and is rotatable relative to the connecting seat, and the connecting shaft is provided with a connecting part used to be connected with the fastening part. The connecting device has a connecting position, in which the connecting bolt is fastened with the connecting shaft on the adjacent container. In the present application, the connecting device comprises the connecting seat, the connecting bolt and the connecting shaft made of rigid material, and the connecting bolt can be fastened with the connecting shaft on the adjacent container. Therefore, the adjacent containers on the transport vehicle can be connected together through the connecting device, so that the shaking of the containers during transportation can be effectively reduced, and the wear of the goods in the containers can be reduced.

Description

Technical Field

[0001] This invention relates to the field of logistics and transportation technology, and in particular to a connecting device and a container having the same. Background Technology

[0002] Medium-sized containers are typically secured to vehicles with ropes during transport to prevent significant movement or falling. However, because ropes are flexible and containers cannot be perfectly sealed during loading, gaps remain. Therefore, rope securing cannot completely prevent the movement of each container during transport. This movement affects the materials inside some containers; friction between materials reduces their quality and causes losses. For example, when transporting granular materials, container movement can cause the granules to rub against each other, producing powder, reducing material quality, and resulting in losses. The impact is more severe during long-distance transport.

[0003] Therefore, it is necessary to develop new methods for securing medium-sized containers during transportation to minimize container swaying and at least partially solve the aforementioned problems. Summary of the Invention

[0004] One object of the present invention is to overcome the shortcomings of the prior art and provide a connecting device that effectively reduces the shaking of containers during transportation. To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A connecting device is used between two adjacent containers during transportation, each container having at least one apex corner. The connecting device is provided in a one-to-one correspondence with each apex corner. The connecting device includes:

[0006] At least one connector for fixing to the top corner of the container, the connector having a shaft hole;

[0007] A connecting bolt, one end of which is rotatably connected to a connecting seat, and the other end of which has a fastening part for securely connecting to an adjacent container; and

[0008] A connecting shaft passes through a shaft hole and can rotate relative to the connecting seat. The connecting shaft is provided with a connecting part for fitting and connecting with the fastening part.

[0009] The connecting device has a connection position, in which the connecting bolt is fastened to the connection part of the connecting shaft on the adjacent container by means of a fastening part.

[0010] In one embodiment, the connecting bolt includes a connecting sleeve and a screw. The connecting sleeve is used to fit around the outside of the connecting seat. One end of the screw is connected to the outer periphery of the connecting sleeve, and a fastening part is provided at the other end of the screw. The connecting sleeve is rotatable relative to the connecting seat about a first axis, which is parallel to the axis of the shaft hole.

[0011] In one embodiment, the connecting bolt further includes a hinge seat connected to the outer periphery of the connecting sleeve, and the end of the screw away from the fastening part is hinged to the hinge seat. The screw is rotatable relative to the hinge seat about a second axis, which is perpendicular to the first axis.

[0012] In one embodiment, the fastening part includes two fastening nuts disposed opposite each other, the two fastening nuts being threadedly connected to the connecting bolts respectively, and in the connection position, the two fastening nuts can come close to each other to clamp the connecting shaft from both sides of the connecting shaft.

[0013] In one embodiment, the opposing surfaces of the two fastening nuts are respectively provided with elastic abutments, which are used to elastically abut against the connecting shaft.

[0014] In one embodiment, the top of the connecting shaft protrudes upward from the shaft hole, and the connecting part is a connecting groove formed on the top of the connecting shaft, which is used to hold the connecting bolt.

[0015] At the connection position, the connecting bolt is engaged in the connecting groove, and the two fastening nuts are located on both sides of the connecting groove and can be brought close to each other to clamp the connecting shaft.

[0016] In one embodiment, the connecting shaft protrudes from the outer peripheral surface of the shaft hole and has two connecting planes, which are located on both sides of the connecting groove to abut against the two fastening nuts.

[0017] In one embodiment, the top of the connecting plane is also provided with a lug, which can abut against the fastening nut at the connection position to prevent the connecting bolt from coming out of the connecting groove.

[0018] In one embodiment, the connecting shaft includes a first shaft segment and a second shaft segment connected to each other. The first shaft segment is used to pass through the shaft hole, and the second shaft segment is provided to protrude from the shaft hole. The connecting part is provided on the second shaft segment, and the outer diameter of the second shaft segment is larger than the outer diameter of the first shaft segment.

[0019] In one embodiment, the connecting shaft further includes a retaining ring disposed at the end of the first shaft segment away from the second shaft segment, and the outer diameter of the retaining ring is larger than the outer diameter of the first shaft segment.

[0020] In one embodiment, the top of the connecting shaft protrudes upward from the shaft hole, and the portion of the connecting shaft protruding from the shaft hole is provided with a handle;

[0021] Along the axial direction of the shaft hole, the lowest point of the handle is higher than the highest point of the connecting bolt.

[0022] In one embodiment, the connecting device further includes a limiting part, which is fixed to the top corner and located on one side of the connecting seat;

[0023] The connecting device also has a non-connecting position, and a limiting part is used to limit the rotation range of the connecting bolt in the non-connecting position.

[0024] In one embodiment, the limiting part includes a limiting seat, which has a limiting groove for engaging the connecting bolt;

[0025] In the non-connected position, the end of the connecting bolt away from the connecting seat is engaged in the limiting groove.

[0026] In one embodiment, the connecting device further includes a base plate, which is fixedly or detachably connected to the top corner, and a connecting seat is fixed on the base plate and fixed to the top corner via the base plate.

[0027] In one embodiment, the connecting device includes a connecting seat, and the connecting bolt and the connecting shaft are both rotatably mounted on the same connecting seat;

[0028] The center of the connector is equidistant from the outer facade of the adjacent container.

[0029] In one embodiment, the connecting device includes two connecting seats, namely a first connecting seat and a second connecting seat, a connecting bolt is rotatably connected to the first connecting seat, and a connecting shaft is rotatably connected to the second connecting seat;

[0030] At the connection position, the connecting bolt on the first connecting seat is fastened to the connecting shaft on the second connecting seat on the adjacent container.

[0031] In one embodiment, in two adjacent sets of connecting devices, the first connecting seat of one set of connecting devices is symmetrically arranged with the second connecting seat of the other set of connecting devices, and the second connecting seat of one set of connecting devices is symmetrically arranged with the first connecting seat of the other set of connecting devices.

[0032] Another object of the present invention is to provide a container comprising a connecting device as described in any of the preceding claims, the container having at least one apex, and the number of connecting devices being at least one set, with each connecting device correspondingly disposed on each apex.

[0033] In one embodiment, the container has two or more apex corners, and each of the two adjacent apex corners is provided with a connecting device.

[0034] In one embodiment, a downwardly recessed mounting groove is formed at each of the top corners, and each connecting device is correspondingly accommodated in the mounting groove.

[0035] As can be seen from the above technical solution, the present invention has at least the following advantages and positive effects:

[0036] In this invention, a connecting device is provided at the top corner of the container. The connecting device includes a rigid connecting seat, a connecting bolt, and a connecting shaft, and the connecting bolt can be securely connected to the connecting shaft on an adjacent container. Therefore, adjacent containers on a transport vehicle can be connected together by the connecting device, and then the connected containers can be secured to the vehicle with ropes, thereby effectively reducing the shaking of each container during transportation and reducing the wear of the goods inside the containers. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of a container according to a preferred embodiment of this application.

[0038] Figure 2 for Figure 1 A magnified view of part A.

[0039] Figure 3 for Figure 1 A three-dimensional structural diagram of the connecting device in the structure shown.

[0040] Figure 4 for Figure 3 A three-dimensional structural diagram of the connecting seat of the connecting device.

[0041] Figure 5 for Figure 3 A three-dimensional structural diagram of the connecting bolts of the connecting device.

[0042] Figure 6 for Figure 3 A three-dimensional structural diagram of the connecting shaft of the connecting device.

[0043] Figure 7 for Figure 1 A three-dimensional structural diagram showing the containers connected together during loading and transportation.

[0044] Figure 8 for Figure 7 A magnified view of part B.

[0045] Figure 9 This is a three-dimensional structural diagram of a container according to another preferred embodiment of this application.

[0046] Figure 10 for Figure 9 A magnified view of part C.

[0047] Figure 11 for Figure 9 A three-dimensional structural diagram showing the containers connected together during loading and transportation.

[0048] Figure 12 for Figure 11 A magnified view of part D.

[0049] Figure 13 for Figure 12 A top-down view.

[0050] Figure 14 In another preferred embodiment, the connecting device is fixed to Figure 9 A schematic diagram of the three-dimensional structure on the container.

[0051] Figure 15 for Figure 14 A three-dimensional structural diagram of the connecting device.

[0052] Figure 16 for Figure 15 A three-dimensional structural diagram of the connecting seat of the connecting device.

[0053] Figure 17 for Figure 15 A three-dimensional structural diagram of the connecting shaft of the connecting device.

[0054] Figure 18 In another preferred embodiment, the connecting device is fixed to Figure 1 A schematic diagram of the three-dimensional structure on the container.

[0055] Figure 19 for Figure 18 A magnified view of a portion of point E.

[0056] Figure 20 for Figure 19 A three-dimensional structural diagram of the connecting device.

[0057] Figure 21 for Figure 20 A three-dimensional structural diagram of the second connecting seat of the connecting device.

[0058] Figure 22 for Figure 20 A three-dimensional structural diagram of the connecting shaft of the connecting device.

[0059] Figure 23 for Figure 18 A three-dimensional structural diagram showing the containers connected together during loading and transportation.

[0060] Figure 24 for Figure 23 A magnified view of a portion of point F.

[0061] Figure 25 for Figure 24 A top-down view.

[0062] Figure 26 for Figure 18 A top-down view.

[0063] Figure 27 for Figure 18 A top-view diagram showing the containers connected together during loading and transportation.

[0064] Figure 28 for Figure 27 A magnified view of a portion of point G.

[0065] Figure 29 This is a top-view diagram showing the containers connected together during loading and transportation of containers with a horizontal hexagonal outer contour.

[0066] The annotations in the attached figures are explained as follows:

[0067] 10-Container; 101-Top corner; 111-Top corner plate; 112-Mounting hole;

[0068] 113-Mounting slot; 114-Mounting slot bottom plate; 115-Mounting slot surrounding plate; 116-Hanging rod; 117-Lifting ring;

[0069] 102 - Tank body; 103 - Outer frame;

[0070] 20 - Connecting device;

[0071] 100-Connector;

[0072] 110 - Shaft hole; 120 - Flange; 130 - Stepped hole;

[0073] 140 - First connecting seat; 150 - Second connecting seat;

[0074] 200 - Connecting bolt;

[0075] 210 - Fastening part; 211 - Fastening nut; 212 - Flexible abutment part;

[0076] 220 - Connecting sleeve; 230 - Screw; 240 - Hinge seat;

[0077] 300-Connecting shaft;

[0078] 310 - Connecting part; 311 - Connecting groove; 312 - Connecting plane; 313 - Lug;

[0079] 320 - First shaft section; 330 - Second shaft section; 340 - First shaft shoulder; 350 - Retaining ring; 360 - Handle;

[0080] 400 - Limiting part; 410 - Limiting seat; 411 - Limiting groove;

[0081] 500 - Base Plate. Detailed Implementation

[0082] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0083] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0085] This invention provides a connecting device 20 for use between containers during transportation and a container 10 having the same. The connecting device 20 enables multiple containers 10 on a vehicle to be connected as a single unit, thereby reducing the shaking of the containers 10 during transportation and improving the quality of the materials transported within the containers 10.

[0086] Please see Figure 1 As shown, the container 10 of this embodiment includes a connecting device 20 disposed at its top corner 101. The container 10 has at least one top corner 101, and the number of connecting devices 20 is at least one set, with each connecting device 20 correspondingly disposed on each top corner 101.

[0087] Optionally, the container 10 includes a tank body 102 and an outer frame 103 disposed outside the tank body 102. The apex corner 101 of the container 10 is located at the apex corner of the outer frame 103. That is, the connecting device 20 is located at the apex corner of the outer frame 103.

[0088] In other embodiments, the container 10 may also consist only of the tank body 102, with the connecting device 20 located at the top corner of the tank body 102.

[0089] Optionally, the outer frame 103 is generally rectangular, that is, the horizontal outer contour of the outer frame 103 is rectangular, and the length, width, and height of the outer frame 103 are the same as the length, width, and height of the container 10. Therefore, in this embodiment, the horizontal outer contour of the container 10 is rectangular, and its top has four vertices.

[0090] Optionally, each of the four corners may be provided with a corner portion 101 for mounting the connecting device 20. Correspondingly, the number of connecting devices 20 may be one, two, three, or four. One connecting device 20 may be provided on any one corner portion 101 of the container 10; two connecting devices 20 may be provided on any two adjacent corner portions 101 of the container 10, and so on.

[0091] In other embodiments, see Figure 29 As shown, the horizontal outer contour of the container 10 can also be a regular hexagon with six vertices at its top. Each of these six vertices can be provided with a corner portion 101 for mounting the connecting device 20. In this case, the number of connecting devices 20 can be one, two, three, four, five, or six. One connecting device 20 can be provided on any one corner portion 101 of the container 10; two connecting devices 20 can be provided on any two adjacent corner portions 101 of the container 10; three connecting devices 20 can be provided on three adjacent corner portions 101 of the container 10, and so on.

[0092] Alternatively, in other embodiments, the horizontal outer contour of container 10 may also be a triangle, a rhombus, or a regular pentagon, etc.

[0093] See Figure 1 and Figure 2 As shown, the top corner portion 101 includes a top corner plate 111 located at the top corner of the container 10, and the top corner plate 111 is used to install the connecting device 20. The technical solution of this application will be specifically described below with reference to the structure of the connecting device 20.

[0094] like Figure 2 As shown, the connecting device 20 of this embodiment includes at least one connecting seat 100, a connecting bolt 200, and a connecting shaft 300. The connecting seat 100 is used to fix to the top corner 101 of the container 10, and the connecting seat 100 is provided with a shaft hole 110. One end of the connecting bolt 200 is rotatably connected to the connecting seat 100, and the other end is provided with a fastening part 210 for fastening to an adjacent container 10. The connecting shaft 300 passes through the shaft hole 110 and is rotatable relative to the connecting seat 100, and the connecting shaft 300 is provided with a connecting part 310 for fitting and connecting with the fastening part 210.

[0095] Each connecting device 20 may have one connecting seat 100, and the connecting bolt 200 and the connecting shaft 300 are rotatably connected to the connecting seat 100.

[0096] The connecting device 20 has a connecting position, in which the connecting bolt 200 is fastened to the connecting part 310 of the connecting shaft 300 on the adjacent container 10 via the fastening part 210.

[0097] By providing a connecting device 20 at the top corner 101 of container 10, adjacent containers 10 on the transport vehicle can be connected together, and then the connected containers 10 can be secured to the vehicle with ropes, thereby effectively reducing the shaking of each container 10 during transportation and reducing the wear and tear on the goods in the container 10.

[0098] See Figure 1 As shown, in some embodiments, a lifting rod 116 is also provided on the top corner 101 to facilitate the lifting of the container 10.

[0099] For ease of description, it is hereby stipulated that... Figure 1 Taking the orientation shown as an example, the surface where the top corner 101 of container 10 is located is the top surface. The direction perpendicular to the top surface is the vertical direction, and the direction parallel to the top surface is the horizontal direction. Figure 1 In the container 10, two sets of connecting devices 20 are respectively provided at the two top corners 101 on the front side of the container 10. Furthermore, when facing the front side of the container 10, the left side of the container 10 is the left side of the operator's left hand and the right side of the container 10 is the right side of the operator's right hand.

[0100] Example 1

[0101] Combination Figures 3 to 6 As shown, specifically, the connecting seat 100 is generally cylindrical, with its upper end extending horizontally outward to form a circumferential flange 120. The lower end of the connecting seat 100 is used for fixed connection with the top corner plate 111. Optionally, the top corner plate 111 is provided with a mounting hole 112, and the lower end of the connecting seat 100 can be inserted into the mounting hole 112 and welded to the top corner plate 111 for fixation.

[0102] The connecting bolt 200 includes a connecting sleeve 220 and a screw 230. The connecting sleeve 220 is fitted onto the outside of the connecting seat 100. One end of the screw 230 is connected to the outer periphery of the connecting sleeve 220, and a fastening part 210 is provided at the other end of the screw 230. The connecting sleeve 220 can rotate relative to the connecting seat 100 about a first axis parallel to the axis of the shaft hole 110. Since the axis of the shaft hole 110 extends vertically, the first axis also extends vertically, allowing the connecting sleeve 220 to rotate horizontally 360° relative to the connecting seat 100.

[0103] See Figure 3As shown, when installing the connecting bolt 200, first, the connecting sleeve 220 is fitted onto the outer circumferential surface of the connecting seat 100, then the lower end of the connecting seat 100 is inserted into the mounting hole 112 on the top corner plate 111, and the lower end of the connecting seat 100 is welded and fixed to the top corner plate 111. In this way, the connecting sleeve 220 is confined between the flange 120 and the top corner plate 111, and the connecting bolt 200 can rotate horizontally 360° relative to the connecting seat 100.

[0104] Furthermore, the connecting bolt 200 also includes a hinge seat 240, which is connected to the outer periphery of the connecting sleeve 220. The end of the screw 230 away from the fastening part 210 is hinged to the hinge seat 240, and the screw 230 is rotatable relative to the hinge seat 240 about a second axis. The second axis is perpendicular to the first axis, i.e., it extends horizontally, and the screw 230 is oscillating vertically relative to the hinge seat 240.

[0105] like Figure 5 As shown, the hinge seat 240 can be a U-shaped piece bent from a steel plate, with the outer bottom surface of the U-shape welded and fixed to the outer circumferential surface of the connecting sleeve 220. The end of the screw 230 away from the fastening part 210 is hinged to the U-shaped groove of the hinge seat 240 via a hinge shaft extending in the horizontal direction. Thus, the screw 230 can swing up and down around the horizontal hinge shaft of the hinge seat 240, and can rotate 360° horizontally relative to the connecting seat 100 with the connecting sleeve 220.

[0106] In other embodiments, the hinge base 240 may also include two hinge plates arranged opposite each other, each hinge plate having a rotating hole for passing through the hinge shaft.

[0107] Optionally, along the direction of the first axis (i.e., vertically), the lower end of the hinge seat 240 is higher than the lower end of the connecting sleeve 220. Because the lower end of the hinge seat 240 is higher than the lower end of the connecting sleeve 220, the lower end of the hinge seat 240 will not interfere with the top surface of the top corner plate 111 when the connecting bolt 200 is rotated horizontally, allowing the connecting bolt 200 to rotate freely. Optionally, the upper end of the hinge seat 240 is higher than the upper end of the connecting sleeve 220, thereby allowing the screw 230 to have a larger range of vertical swing.

[0108] See Figure 3 As shown, optionally, the fastening part 210 includes two fastening nuts 211 disposed opposite each other, and the two fastening nuts 211 are respectively threadedly connected to the connecting bolt 200. Specifically, the two fastening nuts 211 are respectively threadedly connected to the screw 230. In the connected position, the two fastening nuts 211 can be brought close to each other to clamp the connecting shaft 300 from both sides. The specific clamping method will be explained in conjunction with the structure of the connecting part 310 of the connecting shaft 300 described below.

[0109] Furthermore, each of the two fastening nuts 211 has a resilient abutment 212 on its opposing surface, which resiliently abuts against the connecting shaft 300. Optionally, the resilient abutment 212 may include a spring washer and a flat washer. Alternatively, the resilient abutment 212 may only include a spring washer. By providing the resilient abutment 212, the reliability of the fastening connection between the fastening nuts 211 and the connecting shaft 300 can be enhanced.

[0110] In other embodiments, the elastic abutment 212 may also be an elastic structure such as an O-ring.

[0111] See Figure 6 As shown, the connecting shaft 300 includes a first shaft segment 320 and a second shaft segment 330 connected to each other. The first shaft segment 320 is used to pass through the shaft hole 110, the second shaft segment 330 is provided to protrude from the shaft hole 110, and the connecting part 310 is provided on the second shaft segment 330.

[0112] Optionally, the outer diameter of the second shaft segment 330 is larger than the outer diameter of the first shaft segment 320, thereby forming a first shoulder 340 at the junction of the first shaft segment 320 and the second shaft segment 330. The first shoulder 340 is used to abut against the top surface of the connecting seat 100.

[0113] Optionally, the connecting shaft 300 further includes a retaining ring 350, which is located at the end of the first shaft segment 320 away from the second shaft segment 330. The outer diameter of the retaining ring 350 is larger than the outer diameter of the first shaft segment 320. The retaining ring 350 is used to abut against the bottom surface of the connecting seat 100.

[0114] In detail, the lower diameter of the first shaft segment 320 at the end away from the second shaft segment 330 is smaller than the upper diameter, thereby forming a second shoulder (not shown) at the lower end of the first shaft segment 320, and the retaining ring 350 can be fitted and fixed at the second shoulder.

[0115] Optionally, such as Figure 4 As shown, a stepped hole 130 is provided at the lower end of the shaft hole 110 of the connecting seat 100. The diameter of the stepped hole 130 is larger than the diameter of the shaft hole 110, and the connection between the stepped hole 130 and the shaft hole 110 forms a shoulder.

[0116] See Figure 3 As shown, when installing the connecting shaft 300, first insert the connecting shaft 300 into the shaft hole 110 of the connecting seat 100 from above, so that the first shoulder 340 abuts against the top surface of the connecting seat 100. Then, install the retaining ring 350 into the stepped hole 130 of the connecting seat 100, and at the same time, make the retaining ring 350 fit on the lower end of the first shaft section 320 and make the retaining ring 350 abut against the second shoulder (not shown). Then, weld the retaining ring 350 to the lower end of the first shaft section 320.

[0117] The distance from the top surface of the retaining ring 350 to the first shoulder 340 is matched with the distance from the hole shoulder to the top surface of the connecting seat 100, so that the hole shoulder and the top surface of the connecting seat 100 can restrict the vertical movement of the connecting shaft 300, while the connecting shaft 300 can rotate horizontally 360° within the shaft hole 110.

[0118] In other embodiments, the lower end of the shaft hole 110 of the connecting seat 100 may not be provided with the stepped hole 130. Instead, the lower end of the first shaft segment 320 and the retaining ring 350 may protrude from the lower end of the connecting seat 100, and the bottom surface of the connecting seat 100 may directly abut against the retaining ring 350 for limiting.

[0119] In this application, the second shaft segment 330 is the portion that protrudes from the shaft hole 110. For example... Figure 6 As shown, optionally, the connecting part 310 is a connecting groove 311 formed on the second shaft section 330, and the connecting groove 311 is used to hold the connecting bolt 200. In the connected position, the connecting bolt 200 is held in the connecting groove 311, and two fastening nuts 211 are located on both sides of the connecting groove 311 and can approach each other to clamp the connecting shaft 300.

[0120] The connecting groove 311 can be a U-shaped groove with the opening facing upwards. In the connecting position, the portion of the aforementioned screw 230 located between the two fastening nuts 211 can pass through the U-shaped groove. Then, the two fastening nuts 211 on both sides of the U-shaped groove are rotated closer to each other, so that the two fastening nuts 211 can lock and fix the connecting bolt 200 and the connecting shaft 300.

[0121] Further, see Figure 6 As shown, the connecting shaft 300 protrudes from the outer circumferential surface of the shaft hole 110 and has two connecting planes 312. The two connecting planes 312 are located on both sides of the connecting groove 311 and are used to abut against the two fastening nuts 211. By providing the connecting planes 312, the abutment between the outer circumference of the connecting shaft 300 and the fastening nuts 211 can be facilitated, which can increase the contact area between the outer circumference of the connecting shaft 300 and the fastening nuts 211, so that the fastening nuts 211 and the connecting shaft 300 can be reliably connected.

[0122] Further, see Figure 6 As shown, the top of the connecting plane 312 is also provided with a lug 313. In the connection position, the lug 313 can abut against the fastening nut 211 to prevent the connecting bolt 200 from coming out of the connecting groove 311. By providing the lug 313, the reliability of the connection between the connecting bolt 200 and the connecting shaft 300 can be further improved.

[0123] In other embodiments, the fastening part 210 and the connecting part 310 may also have other structural forms. For example, the positions of the fastening part 210 and the connecting part 310 can be interchanged, that is, the two fastening nuts 211 and the screw 230 thereon can be hinged to the upper end of the connecting shaft 300, for example, the screw 230 is hinged in the existing connecting groove 311. At the same time, the connecting groove 311 for locking the screw 230 is provided on the existing hinge seat 240 (the shape and size need to be changed).

[0124] Alternatively, the two fastening nuts 211 in the aforementioned embodiment can also be configured as two sliding fastening blocks. In the connection position, the two fastening blocks can slide close to each other to clamp the connecting shaft 300 from both sides, and then the two fastening blocks are fixed to the corresponding positions on the screw 230 using screws or the like.

[0125] See Figure 6 Optionally, the portion of the connecting shaft 300 protruding from the shaft hole 110 is provided with a handle 360. That is, a handle 360 ​​is provided on the second shaft segment 330, and the handle 360 ​​is used to facilitate the operator to rotate the connecting shaft 300.

[0126] Optionally, along the axial direction (i.e., vertically) of the shaft hole 110, the lowest point of the handle 360 ​​is higher than the highest point of the connecting bolt 200. See also Figure 3 As shown, the lowest point of the handle 360 ​​is its bottom surface, and the highest point of the connecting bolt 200 is the top surface of the aforementioned hinge seat 240. Therefore, in this embodiment, the bottom surface of the handle 360 ​​is higher than the top surface of the hinge seat 240, which can prevent the handle 360 ​​from interfering with the hinge seat 240 during rotation. This allows both the connecting bolt 200 and the connecting shaft 300 to rotate freely 360° without interfering with each other, facilitating the connection operation.

[0127] In other embodiments, the bottom surface of the handle 360 ​​may be lower than the top surface of the hinge seat 240 to reduce the height of the connecting shaft 300, thereby reducing the height of the connecting device 20, i.e., reducing the overall height of the container 10. In this case, when the connecting bolt 200 is rotated, the connecting bolt 200 can drive the handle 360 ​​to rotate; and when the handle 360 ​​is rotated, if it is blocked by the connecting bolt 200, the handle 360 ​​can be rotated in the opposite direction to rotate the connecting shaft 300 to the connection position.

[0128] Optionally, the axis of the handle 360 ​​is perpendicular to the axis of the shaft hole 110. In other words, the handle 360 ​​is horizontally extended. By setting the handle 360 ​​horizontally, the connecting shaft 300 can rotate flexibly while the handle 360 ​​does not additionally increase the height of the connecting device 20.

[0129] In other embodiments, if not limited by the total height of the container 10, the handle 360 ​​may not be horizontally positioned. For example, the handle 360 ​​may be tilted upwards.

[0130] See Figure 2 In some embodiments, the connecting device 20 further includes a limiting portion 400, which is fixed to the apex portion 101 and located on one side of the connecting seat 100. The connecting device 20 also has a non-connecting position, and the limiting portion 400 is used to limit the rotation range of the connecting bolt 200 in the non-connecting position. By providing the limiting portion 400, the connecting bolt 200 in the non-connecting position can be limited, preventing the connecting bolt 200 from rotating beyond the outer dimensions of the outer frame 103 of the tank body 102, and avoiding damage to the connecting bolt 200 during use.

[0131] Optionally, the limiting part 400 includes a limiting seat 410, which has a limiting groove 411 for engaging the connecting bolt 200. In the non-connected position, the end of the connecting bolt 200 away from the connecting seat 100 is engaged in the limiting groove 411. In this embodiment, the limiting seat 410 is provided on the top surface of the top corner plate 111, and the limiting seat 410 has an upward-opening limiting groove 411. The limiting groove 411 can be a U-shaped groove, where the screw 230 of the connecting bolt 200 rotates above the limiting groove 411 and swings downward into the limiting groove 411 to achieve limiting.

[0132] It is understandable that the handle 360 ​​can be set to be relatively short, and its 360° rotation will not exceed the outer dimensions of the outer frame 103 of the tank body 102, so there is no need for a limit.

[0133] like Figure 7 , Figure 8 As shown, during transportation, containers 10 are placed in two rows along the width of the vehicle and fill the vehicle along its length (generally about 10 containers per row, for a total of about 20 containers). The front sides of the connecting devices 20 of each container 10 are placed opposite each other, that is, the connecting devices 20 are all located on the center line of the vehicle. Except for the connecting devices 20 at the front and rear ends of the vehicle that connect two adjacent containers 10, the connecting devices 20 in the middle connect four adjacent containers 10 together.

[0134] Now let's explain the connection method of the connecting device 20 located in the middle. Assume that the four adjacent containers 10 are containers ①, ②, ③, and ④ respectively, rotated counterclockwise. Lift the screw 230 of container ① from the limiting groove 411 and rotate the screw 230 so that the axis of the screw 230 is aligned with the center line connecting the connecting seat 100 of container ① and the connecting seat 100 of container ② (because the axis of the screw 230 of container ① intersects the center line of the connecting seat 100 of container ①, the axis of the screw 230 of container ① can definitely be aligned with the connecting seat 100 of container ①). (The center line connecting the base 100 of container ① and the center line connecting the base 100 of container ②) Simultaneously rotate the connecting shaft 300 of container ② so that the center line of the connecting groove 311 of the connecting shaft 300 of container ② is aligned with the center line connecting the base 100 of container ① and the center line connecting the base 100 of container ② (because the center line of the connecting groove 311 of container ② intersects the center line of the connecting base 100 of container ②, the center line of the connecting groove 311 of container ② can definitely be aligned with the center line connecting the base 100 of container ① and the center line connecting the base 100 of container ②). In this way, the axis of the screw 230 can be aligned with the center line of the connecting groove 311. Swing the screw 230 downward and insert it into the connecting groove 311, and place each set of fastening nuts 211, spring washers and flat washers at both ends of the connecting groove 311 respectively. Tighten the two fastening nuts 211 to clamp the connecting planes 312 at both ends of the connecting groove 311, so that container ① and container ② are connected.

[0135] The same operation can connect the connecting bolt 200 of container ② to the connecting shaft 300 of container ③, connect the connecting bolt 200 of container ③ to the connecting shaft 300 of container ④, and connect the connecting bolt 200 of container ④ to the connecting shaft 300 of container ①, thereby connecting containers ①, ②, ③, and ④ together.

[0136] The lug 313 at the upper end of the connecting plane 312 prevents the screw 230 from accidentally disengaging from the connecting groove 311. Alternatively, the lug 313 may not be provided, as shown in Embodiment 3 described later. In this case, the screw 230 can be locked and confined within the connecting groove 311 by the tightening force of the fastening nuts 211 on both sides.

[0137] The above describes the connection of the connecting bolt 200 to the connecting shaft 300 of the adjacent container 10 in a counterclockwise direction. It can be understood that the connecting bolt 200 can also be connected to the connecting shaft 300 of the adjacent container 10 in a clockwise direction, thus making the connection operation between the containers 10 very convenient and eliminating the possibility of misoperation.

[0138] In one embodiment, the center of the connector 100 is equidistant from the outer facade of its adjacent container 10. For example... Figure 8As shown, the distance from the center of the connecting seat 100 of container ① to the outer facade of containers ② and ④ opposite to container ① is equal. Thus, when four adjacent containers 10 are connected, the distance between the connecting devices 20 is equal.

[0139] In this embodiment, as Figure 1 As shown, the two top corners 101 of the front side of the outer frame 103 of each container 10 have connecting devices 20, so that a whole vehicle of containers 10 (i.e., two rows of containers) can be connected into one unit.

[0140] In other embodiments, if each container 10's outer frame 103 has only one apex corner 101 with a connecting device 20, then only adjacent groups (four) of containers 10 can be connected together. See details below. Figure 7 Point B in the diagram. If the loading direction of container 10 is not specified, each group (four) of containers 10 can be identical. If the loading direction of container 10 is specified, the connecting device 20 of two containers 10 in each group (four) of containers 10 is located at the left top corner 101 of the front side, and the connecting device 20 of the other two containers 10 is located at the right top corner 101 of the front side. Although this method saves one connecting device 20 on each container 10, it is inconvenient to use and fails to connect all the containers 10 in the vehicle into one unit.

[0141] Alternatively, in other embodiments, each of the four corners 101 of the outer frame 103 of each container 10 may have a connecting device 20, so that there is no need to distinguish the sides when loading, avoiding incorrect loading direction, and the containers 10 of the whole vehicle can be connected into one piece.

[0142] Example 2

[0143] See Figure 9 and Figure 10 As shown, this is another preferred embodiment of the present application. The difference from the aforementioned embodiment one is that the top corner 101 of the container 10 includes a mounting groove 113 located at the top corner of the container 10.

[0144] like Figure 10As shown, each apex corner 101 has a downwardly recessed mounting groove 113, and each connecting device 20 is correspondingly housed within each mounting groove 113. Specifically, the mounting groove 113 includes a mounting groove base plate 114 and a mounting groove surround plate 115. The mounting groove base plate 114 is horizontally positioned at the apex corner of the container 10 and is approximately rectangular. The mounting groove surround plate 115 is approximately L-shaped and extends upward along the two sides of the mounting groove base plate 114 near the inner side of the container 10, thereby forming a mounting groove 113 open to the top, left, and front sides of the container 10. The upper end of the mounting groove surround plate 115 can be flush with the top surface of the container 10. It can be understood that when the mounting groove 113 is located at the top right side, the mounting groove 113 is open to the top, right, and front sides of the container 10. If the mounting groove 113 is located at the rear side, its opening orientation changes accordingly.

[0145] The connecting device 20 is mounted on the bottom plate 114 of the mounting groove, and the overall height of the connecting device 20 does not exceed the height of the mounting groove 113. By providing the mounting groove 113 to accommodate the connecting device 20, the connection device 20 can be prevented from extending beyond the top surface of the container 10, thus avoiding increasing the total height of the container 10, in order to adapt to working conditions where the total height of the container 10 is required. The connection method between the connecting device 20 and the bottom plate 114 of the mounting groove is the same as the connection method between the connecting device 20 and the top corner plate 111 described above.

[0146] like Figure 10 As shown, a lifting ring 117 is also provided on the bottom plate 114 of the mounting groove to replace the aforementioned lifting rod 116, thereby facilitating the lifting and transportation of the container 10. It should be noted that the height of the lifting ring 117 does not exceed the height of the mounting groove 113.

[0147] Furthermore, the lifting ring 117 can replace the aforementioned limiting seat 410. Specifically, a gap is formed between the lifting ring 117 and the mounting groove surrounding plate 115, and the screw 230 located in the non-connected position can be housed within this gap. The lifting ring 117 and the mounting groove surrounding plate 115 can restrict the screw 230 from rotating beyond the outer dimensions of the container 10, thus serving a limiting function. That is to say, in this embodiment, the limiting part 400 is formed as the gap between the lifting ring 117 and the mounting groove surrounding plate 115.

[0148] When the connecting bolt 200 is required for connection, lifting the screw 230 can avoid the lifting ring 117 and the mounting groove surrounding plate 115, allowing the connecting bolt 200 to rotate 360°. At the same time, the connecting shaft 300 can rotate 360° within the mounting groove 113.

[0149] Figures 11 to 13 The arrangement and connection of containers 10 on a vehicle during transportation are shown, and the arrangement and connection method is basically the same as in the aforementioned Embodiment 1. The only difference is that in this embodiment, the connecting bolts 200 connect the connecting shafts 300 of adjacent containers 10 in a clockwise direction.

[0150] And by Figure 13 It can be seen that when each container 10 is loaded, there are irregular gaps between the containers 10. However, regardless of the position of each container 10 and the gap between the containers 10, according to the connection principle analyzed above, the screws 230 of adjacent containers 10 can always be aligned and connected with the connecting grooves 311.

[0151] Example 3

[0152] Figures 14 to 17 This invention illustrates another preferred embodiment of the present application, which differs from Embodiment 1 and Embodiment 2 in that the connecting device 20 further includes a base plate 500, and the connecting seat 100 is fixed to the top corner 101 via the base plate 500.

[0153] Optionally, the base plate 500 is fixedly connected to or detachably connected to the top corner portion 101, and the connecting seat 100 is fixed on the base plate 500, and the connecting seat 100 is fixed to the top corner portion 101 through the base plate 500.

[0154] like Figure 15 As shown, the base plate 500 is fitted onto the lower end of the outer circumferential surface of the connecting seat 100. When installing the connecting bolt 200, first, the connecting sleeve 220 of the connecting bolt 200 is fitted onto the outer circumferential surface of the connecting seat 100, then the base plate 500 is fitted onto the lower end of the connecting seat 100, and the lower end of the connecting seat 100 is welded and fixed to the base plate 500. The lower end of the connecting seat 100 does not extend beyond the bottom surface of the base plate 500. In this way, the connecting sleeve 220 of the connecting bolt 200 is confined between the flange 120 of the connecting seat 100 and the base plate 500, allowing the connecting bolt 200 to rotate 360° around the centerline of the connecting seat 100. Since the lower end of the hinge seat 240 is higher than the lower end of the connecting sleeve 220, the lower end of the hinge seat 240 will not interfere with the top surface of the base plate 500 when the connecting bolt 200 is rotated horizontally, thus allowing the connecting bolt 200 to rotate freely.

[0155] The installation method of the connecting shaft 300 is the same as that described above, and the connecting shaft 300 does not extend beyond the bottom surface of the base plate 500. There is no need to provide mounting holes 112 on the top corner plate 111 or the mounting groove base plate 114; simply weld the bottom surface of the assembled connecting device 20's base plate 500 to the top surface of the top corner plate 111 or the mounting groove base plate 114.

[0156] In other embodiments, the base plate 500 can be detachably connected to the top corner plate 111 or the mounting groove base plate 114 using fasteners. For example, the base plate 500 can be detachably connected to the mounting groove base plate 114 using bolts. In this way, the connecting device 20 can be installed on the container 10 when transportation is required, and can be removed from the container 10 when not needed, so as to avoid the connecting device 20 exceeding the height limit of the container 10 and to reduce the number of connecting devices 20 configured.

[0157] Example 4

[0158] Figures 18 to 22 This embodiment illustrates another preferred embodiment of the present application, which differs from embodiments one to three in that each connecting device 20 includes two connecting seats 100, both of which are fixed to the same apex 101. The connecting bolt 200 and the connecting shaft 300 are rotatably connected to the two connecting seats 100 respectively.

[0159] like Figure 19 As shown, the two connecting seats 100 are the first connecting seat 140 and the second connecting seat 150, respectively. The connecting bolt 200 is rotatably connected to the first connecting seat 140, and the connecting shaft 300 is rotatably connected to the second connecting seat 150. In the connected position, the connecting bolt 200 on the first connecting seat 140 is fastened to the connecting shaft 300 on the second connecting seat 150 on the adjacent container 10.

[0160] Specifically, such as Figure 20 As shown, the first connecting seat 140 differs from the connecting seat 100 in Embodiment 1 in that the first connecting seat 140 does not have a shaft hole 110; the rest of the structure is the same. The upper end of the first connecting seat 140 has a flange 120, and its overall shape is like a flat-head rivet. The connecting bolt 200 has the same structure as the connecting bolt 200 in Embodiment 1.

[0161] During installation, first, the connecting sleeve 220 of the connecting bolt 200 is fitted onto the outer circumferential surface of the first connecting seat 140. Then, the lower end of the first connecting seat 140 is inserted into the mounting hole 112 on the top corner plate 111, and the lower end of the first connecting seat 140 is welded and fixed to the bottom surface of the top corner plate 111. In this way, the connecting sleeve 220 of the connecting bolt 200 is confined between the flange 120 and the top corner plate 111, and the connecting bolt 200 can rotate 360° around the center line of the first connecting seat 140.

[0162] like Figure 21 As shown, the difference between the second connecting seat 150 and the connecting seat 100 in Embodiment 1 is that the second connecting seat 150 does not have a flange 120, but the rest of the structure is the same.

[0163] like Figure 22As shown, the connecting shaft 300 has a basically the same structure as the connecting shaft 300 in Embodiment 1. The connection method between the connecting shaft 300 and the second connecting seat 150 is the same as the connection method between the connecting shaft 300 and the connecting seat 100 in Embodiment 1. After the connecting shaft 300 is connected to the second connecting seat 150, the bottom surface of the second connecting seat 150 is welded to the top surface of the top corner plate 111. The connecting shaft 300 can rotate 360° around the center line of the second connecting seat 150.

[0164] Furthermore, in this embodiment, the limiting seat 410 in Embodiment 1 can be omitted. Specifically, as shown... Figure 19 As shown, the screw 230 of the connecting bolt 200 located in the non-connecting position is limited and housed in the connecting groove 311 of the connecting shaft 300 on the same apex 101, so as to prevent the connecting bolt 200 in the non-connecting position from rotating beyond the outer dimension of the container 10, thereby playing a limiting role.

[0165] Figures 23 to 25 The arrangement and connection of containers 10 on the vehicle during transportation are shown, and the arrangement is basically the same as in embodiments one to three described above. Except for the connecting devices 20 at the front and rear ends of the vehicle that connect two adjacent containers 10, the connecting devices 20 in the middle connect four adjacent containers 10 together. The connection method of the connecting devices 20 in the middle is roughly the same as in embodiment one described above, except that the connecting bolts 200 and connecting shafts 300 rotate around their respective first connecting seats 140 and second connecting seats 150, and the connecting bolts 200 can only be connected in one predetermined connection direction. This embodiment uses the clockwise connection of the connecting bolts 200 to adjacent containers 10 as an example for specific illustration.

[0166] like Figure 24 and Figure 25 As shown, assuming the four adjacent containers 10 are containers ①, ②, ③, and ④ respectively in clockwise order, lift the screw 230 of container ① from the connecting groove 311 of the connecting shaft 300, rotate the screw 230 so that the axis of the screw 230 is aligned with the center of the second connecting seat 150 of container ②, and at the same time rotate the connecting shaft 300 of container ② so that the center line of the connecting groove 311 of the connecting shaft 300 of container ② is aligned with the axis of the screw 230 of container ①. Swing the screw 230 downward from above the connecting groove 311 and insert it into the connecting groove 311, and place each set of fastening nuts 211, spring washers, and flat washers at both ends of the connecting groove 311 respectively. Tighten the two fastening nuts 211 to clamp the connecting planes 312 at both ends of the connecting groove 311, so that container ① is connected to container ②.

[0167] The same operation can connect the connecting bolt 200 of container ② to the connecting shaft 300 of container ③, connect the connecting bolt 200 of container ③ to the connecting shaft 300 of container ④, and connect the connecting bolt 200 of container ④ to the connecting shaft 300 of container ①, thereby connecting containers ①, ②, ③, and ④ together. Of course, the connecting bolt 200 can also be set to connect adjacent containers 10 counterclockwise.

[0168] like Figures 26 to 28 As shown, Figure 26 The container 10 shown has connecting devices 20 at the two top corners 101 of the outer frame 103 of the tank body 102 near the front side. In the two adjacent sets of connecting devices 20, the first connecting seat 140 of one set of connecting devices 20 is symmetrically arranged with the second connecting seat 150 of the other set of connecting devices 20, and the second connecting seat 150 of one set of connecting devices 20 is symmetrically arranged with the first connecting seat 140 of the other set of connecting devices 20.

[0169] Specifically, such as Figure 26 As shown, a second connecting seat 150 is provided at a distance A between the left top corner 101 and the front side, and a first connecting seat 140 is provided at the right top corner 101, which is symmetrical to it. Similarly, a first connecting seat 140 is provided at a distance E between the left top corner 101 and the front side, and a second connecting seat 150 is provided at the right top corner 101, which is symmetrical to it. This arrangement is intended to allow for the connection of four adjacent containers 10 when their front sides are arranged opposite each other on the vehicle during transport.

[0170] like Figure 28 As shown, the distance from the first connecting seat 140 on container ① and the second connecting seat 150 on container ② to the front side is A, so that the connection of adjacent containers 10 along the length of the vehicle can be aligned.

[0171] The distance from the second connecting seat 150 on container ① and the first connecting seat 140 on container ② to their adjacent sides is B, so that the connection between the adjacent containers 10 along the width direction of the vehicle can be aligned.

[0172] The distance C from the second connecting seat 150 on container ② to the adjacent side can be equal to or unequal to the distance D from the first connecting seat 140 on container ① to the adjacent side. The distance E from the first connecting seat 140 on container ④ to the front side can be equal to or unequal to the distance F from the second connecting seat 150 on container ① to the front side, but the sum of distances C and D should be equal to the sum of distances E and F to ensure that the connection distances of the connecting bolts 200 are equal.

[0173] Figure 28The diagram shows that the connecting bolt 200 connects the adjacent container 10 clockwise. If the first connecting seat 140 on container ① and the second connecting seat 150 on container ② are swapped, and the second connecting seat 150 on container ① and the first connecting seat 140 on container ② are swapped, the connection method changes to the connecting bolt 200 connecting the adjacent container 10 counterclockwise.

[0174] In all the above embodiments, the horizontal outer contour of the outer frame 103 of the tank body 102 is rectangular. For example... Figure 29 As shown, the horizontal outer contour of container 10 can also be a regular hexagon. (Refer to...) Figure 1 The installation and connection method of the connecting device 20: Each of the three adjacent apex corners 101 of the container 10 has a connecting device 20. Each connecting device 20 of the apex corner 101 includes a connecting bolt 200, a connecting shaft 300, and at least one connecting seat 100. The connecting seat 100 is fixed to the apex corner 101 of the container 10. The connecting bolt 200 is sleeved on the outer peripheral surface of the connecting seat 100 and can rotate around the connecting seat 100. The connecting shaft 300 passes through the shaft hole 110 of the connecting seat 100 and can rotate around the connecting seat 100. The connecting device 20 has a connecting position and a non-connecting position. When the connecting device 20 is in the connecting position, the connecting bolt 200 is connected to the connecting shaft 300 of the adjacent container 10. When the connecting device 20 is in the non-connecting position, the connecting bolt 200 is confined and locked in the limiting groove 411 on the same apex corner 101.

[0175] As can be seen from the above technical solution, the container 10 of this application embodiment, since a connecting device 20 is provided at the top corner 101 of the container 10, can connect the containers 10 on the transport vehicle together, and then use ropes to fasten the connected containers 10 to the vehicle, which can effectively reduce the shaking of the container 10 during transportation and reduce the wear and tear of the goods in the container 10.

[0176] Furthermore, the positions of the containers 10 during loading are typically not very precise, and the orientation and distance between the connecting seats 100 of the two interconnected connecting devices 20 are uncertain. However, since the connecting bolts 200 and connecting shafts 300 on each connecting seat 100 can rotate to adjust their orientation, the center of the screw 230 can coincide with the center of the connecting groove 311. Simultaneously, the adjustable fastening method, including two opposing fastening nuts 211, allows for adjustable connection distance of the connecting devices 20. Thus, changes in the orientation and distance of the containers 10 during loading will not affect the connection of the connecting devices 20. In other words, the connecting devices 20 of this embodiment do not impose special requirements on the position of the containers 10 being loaded, and can reliably connect the containers 10. The containers 10 of this invention are easy to load, and the connection operation between adjacent containers 10 is simple and reliable.

[0177] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0178] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A connecting device used between two adjacent containers during transportation, characterized in that, Each of the containers has at least one apex corner, and the connecting device is provided corresponding to each apex corner. The connecting device includes: At least one connector for securing to the top corner of the container, the connector having a shaft hole; A connecting bolt, one end of which is rotatably connected to the connecting seat, and the other end of which is provided with a fastening part for fastening to an adjacent container; and A connecting shaft passes through the shaft hole and can rotate relative to the connecting seat. The connecting shaft can rotate 360° around the axis of the shaft hole. The connecting shaft is provided with a connecting part for fitting and connecting with the fastening part. The connecting bolt includes a connecting sleeve and a screw. The connecting sleeve is fitted onto the outside of the connecting seat. One end of the screw is connected to the outer periphery of the connecting sleeve, and the fastening part is located at the other end of the screw. The connecting sleeve is rotatable relative to the connecting seat about a first axis parallel to the axis of the shaft hole, allowing the connecting bolt to rotate 360° about the first axis. The screw is hinged to the connecting sleeve and is rotatable about a second axis perpendicular to the first axis. The connecting device has a connection position where the connecting bolt is fastened to the connection part of the connecting shaft on an adjacent container via the fastening part. The top of the connecting shaft protrudes upward from the shaft hole, the connecting part is a connecting groove opened on the top of the connecting shaft, the connecting groove is used to hold the connecting bolt, and the fastening part includes two fastening nuts arranged opposite each other; The connecting device includes a connecting seat, and the connecting bolt and the connecting shaft are both rotatably mounted on the same connecting seat.

2. The connecting device according to claim 1, characterized in that, The connecting bolt also includes a hinge seat, which is connected to the outer periphery of the connecting sleeve. The end of the screw away from the fastening part is hinged to the hinge seat, and the screw is rotatable relative to the hinge seat about the second axis.

3. The connecting device according to claim 1, characterized in that, The two fastening nuts are threadedly connected to the connecting bolts respectively. At the connection position, the connecting bolts are engaged in the connecting grooves. The two fastening nuts are located on both sides of the connecting grooves and can approach each other to clamp the connecting shaft.

4. The connecting device according to claim 3, characterized in that, The two fastening nuts are provided with elastic abutment members on their opposite surfaces, which are used to elastically abut against the connecting shaft.

5. The connecting device according to claim 1, characterized in that, The connecting shaft protrudes from the outer circumferential surface of the shaft hole and has two connecting planes. The two connecting planes are located on both sides of the connecting groove and are used to abut against the two fastening nuts.

6. The connecting device according to claim 5, characterized in that, The top of the connecting plane is also provided with a lug, which can abut against the fastening nut at the connecting position to prevent the connecting bolt from coming out of the connecting groove.

7. The connecting device according to claim 1, characterized in that, The connecting shaft includes a first shaft segment and a second shaft segment connected to each other. The first shaft segment is used to pass through the shaft hole, and the second shaft segment is provided to protrude from the shaft hole. The connecting part is provided on the second shaft segment, and the outer diameter of the second shaft segment is larger than the outer diameter of the first shaft segment.

8. The connecting device according to claim 7, characterized in that, The connecting shaft also includes a retaining ring, which is located at the end of the first shaft segment away from the second shaft segment, and the outer diameter of the retaining ring is larger than the outer diameter of the first shaft segment.

9. The connecting device according to claim 1, characterized in that, The top of the connecting shaft protrudes upward from the shaft hole, and the portion of the connecting shaft protruding from the shaft hole is provided with a handle; Along the axial direction of the shaft hole, the lowest point of the handle is higher than the highest point of the connecting bolt.

10. The connecting device according to claim 1, characterized in that, It also includes a limiting part, which is fixed to the top corner and located on one side of the connecting seat; The connecting device also has a non-connecting position, and the limiting part is used to limit the rotation range of the connecting bolt in the non-connecting position.

11. The connecting device according to claim 10, characterized in that, The limiting part includes a limiting seat, and the limiting seat is provided with a limiting groove for locking the connecting bolt; In the non-connected position, the end of the connecting bolt away from the connecting seat is engaged in the limiting groove.

12. The connecting device according to claim 1, characterized in that, It also includes a base plate, which is fixedly or detachably connected to the top corner, and the connecting seat is fixed to the base plate and fixed to the top corner through the base plate.

13. The connecting device according to claim 1, characterized in that, The center of the connector is equidistant from the outer facade of the adjacent container.

14. A container, characterized in that, The container includes the connecting device as described in any one of claims 1-13, wherein the container has at least one top corner, and the number of the connecting devices is at least one set, with each connecting device correspondingly disposed on each top corner.

15. The container according to claim 14, characterized in that, The container has two or more top corners, and the connecting device is provided on each of the two adjacent top corners.

16. The container according to claim 14, characterized in that, Each of the top corners has a downwardly recessed mounting groove, and each of the connecting devices is correspondingly housed within the mounting groove.

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