Container, rigid platform and assembly thereof

Abstract

Provided is a container or rigid platform. The container includes a container body, a first locking device provided on a lateral side of the container body in a length direction of the container body, and a second locking device provided on a top surface of the container body and located at a middle position of the top surface in the length direction of the container body. Both the first locking device and the second locking device are movable structure. The first locking device is movable towards or away from the second locking device along the length direction of the container body. The second locking device is movable towards or away from the first locking device along the length direction of the container body, or the second locking device is movable upwards or downwards along a height direction of the container body.

Description

CONTAINER, RIGID PLATFORM AND ASSEMBLY THEREOF

[0001] TECHNICAL FIELD

[0002] This application relates to the field of storage equipment technology, and in particular to a container, a rigid platform, and an assembly thereof.

[0003] BACKGROUND

[0004] A toolbox is a container used to store commonly used tools such as wrenches and pliers. Conventional toolboxes are usually used separately, but for the convenience of transportation and storage, more and more toolboxes on the market adopt a stacked design structure, and multiple toolboxes use interlocking methods to achieve stacking and combination to each other vertically.

[0005] In order to achieve stacking and interlocking between two toolboxes of different sizes, current stacked toolboxes generally have engaging devices provided on opposite sides of the upper toolbox, a locking device and a clamping device provided separately on the lower toolbox, and the engaging devices on the opposite sides of the upper toolbox are used to respectively engage with the locking device and the clamping device on the lower toolbox, thereby achieving stacking and interlocking between the upper and lower toolboxes. The interlocking structure between the toolbox and a rigid platform is similar to the above structure.

[0006] Currently, the locking device on the lower toolbox is generally a movable structure and is provided on one side of the lower toolbox, while the clamping device on the lower toolbox is a non-movable structure and is provided on the cover of the lower toolbox. When two toolboxes are stacked and interlocked, it is necessary to first cause the engaging device on one side of the upper toolbox to engage with the corresponding clamping device on the lower toolbox, and then cause the engaging device on the other side of the upper toolbox to engage with the corresponding locking device on the lower toolbox. Due to the fixed and immovable nature of the clamping device, during the process of causing the engaging device of the upper toolbox to engage with the clamping device of the lower toolbox, it is required to adjust a locking angle and / or sliding operation of the upper toolbox according to the shape, size or position of the clamping device on the lower toolbox, which is inconvenient for the user to operate.

[0007] For example, when two upper toolboxes each having a footprint approximately being half of a lower toolbox are required to be stacked and installed on the lower toolbox, each upper toolbox needs to be tilted towards the other upper toolbox during installation in order to enable the engaging device of the upper toolbox to be engaged and locked with the clamping device of the lower toolbox. However, if the tilt angle of the upper toolbox is too large, the upper toolbox being later installed may interfere with the other upper toolbox having already been installed, affecting the installation of the later upper toolbox.

[0008] SUMMARY

[0009] An object of this application is to provide a container or a rigid platform to facilitate the stacking and interlocking operation between containers or between a container and a rigid platform.

[0010] This application provides a container configured for another container having a footprint approximately being half of the container to be stacked thereon and locked therewith, the container including:

[0011] a container body having a length direction, a width direction, and a height direction;

[0012] a first locking device provided on a lateral side of the container body in the length direction of the container body;

[0013] a second locking device provided on a top surface of the container body and located at a middle position of the top surface in the length direction of the container body, wherein the first locking device and the second locking device are oppositely arranged to form a first clamping gap therebetween, and the first clamping gap is configured for clamping a bottom portion of the another container;

[0014] both the first locking device and the second locking device are movable structure, wherein the first locking device is movable towards or away from the second locking device along the length direction of the container body, and the second locking device is movable towards or away from the first locking device along the length direction of the container body, or the second locking device is movable upwards or downwards along the height direction of the container body;

[0015] the first locking device and the second locking device are configured to be locked with two opposite lateral sides of the bottom portion of the another container when the another container is stacked on the container.

[0016] In an achievable manner, there are at least two first locking devices provided on the container body, the at least two first locking devices are respectively provided on opposite lateral sides of the container body in the length direction of the container body, the at least two first locking devices are oppositely arranged to form a second clamping gap there between, and the second clamping gap is greater the first clamping gap.

[0017] In an achievable manner, there are two second locking devices provided on the top surface of the container body, the two second locking devices are located at the middle position of the top surface in the length direction of the container body, and the two second locking devices are located at a middle position of the top surface in the width direction of the container body; the two second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and a corresponding second locking device.

[0018] In an achievable manner, there are four second locking devices provided on the top surface of the container body, the four second locking devices are located at the middle position of the top surface in the length direction of the container body, and the four second locking devices are divided into two groups which are respectively located at opposite lateral sides of the container body in the width direction of the container body; the four second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and two corresponding second locking devices.

[0019] In an achievable manner, the second locking device is an automatic sliding locking device and includes a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;

[0020] during a downward movement of the another container when the another container is stacked on the container, the another container exerts a pushing force on the sloping surface to drive the second locking member to slide in a direction away from the first locking device and compress the elastic member;

[0021] after the another container is stacked on the container, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to slide towards the first locking device to be locked with the another container.

[0022] In an achievable manner, the second locking device is an automatic rotatable locking device and includes a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;

[0023] during a downward movement of the another container when the another container is stacked on the container, the another container exerts a pushing force on the sloping surface to drive the second locking member to rotate in a direction away from the first locking device and compress the elastic member;

[0024] after the another container is stacked on the container, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to rotate towards the first locking device to be locked with the another container.

[0025] In an achievable manner, the second locking device is a vertically movable locking device and includes a second locking member and an elastic member in contact with the second locking device, the second locking member is movable upwards or downwards along the height direction of the container body;

[0026] after the second locking member is driven to move downwards and compress the elastic member, a first gap is formed between the second locking member and the container body;

[0027] after the second locking member is driven to move upwards under an elastic force of the elastic member, a second gap is formed between the second locking member and the container body, wherein the second gap is greater than the first gap.

[0028] In an achievable manner, the second locking device is a vertically movable locking device and includes a second locking member, the second locking member is movable upwards or downwards along the height direction of the container body;

[0029] after the second locking member is driven to move downwards and stays in a lower position, a first gap is formed between the second locking member and the container body;

[0030] after the second locking member is driven to move upwards and stays in an upper position, a second gap is formed between the second locking member and the container body, wherein the second gap is greater than the first gap.

[0031] This application further provides an assembly including the container described above and another container stacked on and locked with the container.

[0032] In an achievable manner, the another container is provided with a first engaging device corresponding to the first locking device and a second engaging device corresponding to the second locking device, and the first locking device and the second locking device are respectively engaged and locked with the first engaging device and the second engaging device.

[0033] This application further provides a rigid platform configured for a container having a footprint approximately being half of the rigid platform to be stacked thereon and locked therewith, the rigid platform including:

[0034] a platform body having a length direction, a width direction, and a height direction;

[0035] a first locking device provided on a lateral side of the platform body in the length direction of the platform body;

[0036] a second locking device provided on a top surface of the platform body and located at a middle position of the top surface in the length direction of the platform body, wherein the first locking device and the second locking device are oppositely arranged to form a first clamping gap therebetween, and the first clamping gap is configured for clamping a bottom portion of the container;

[0037] both the first locking device and the second locking device are movable structure, wherein the first locking device is movable towards or away from the second locking device along the length direction of the platform body, and the second locking device is movable towards or away from the first locking device along the length direction of the platform body, or the second locking device is movable upwards or downwards along the height direction of the platform body;

[0038] the first locking device and the second locking device are configured to be locked with two opposite lateral sides of the bottom portion of the container when the container is stacked on the rigid platform.

[0039] In an achievable manner, there are at least two first locking devices provided on the platform body, the at least two first locking devices are respectively provided on opposite lateral sides of the platform body in the length direction of the platform body, the at least two first locking devices are oppositely arranged to form a second clamping gap therebetween, and the second clamping gap is greater the first clamping gap.

[0040] In an achievable manner, there are two second locking devices provided on the top surface of the platform body, the two second locking devices are located at the middle position of the top surface in the length direction of the platform body, and the two second locking devices are located at a middle position of the top surface in the width direction of the platform body; the two second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and a corresponding second locking device.

[0041] In an achievable manner, there are four second locking devices provided on the top surface of the platform body, the four second locking devices are located at the middle position of the top surface in the length direction of the platform body, and the four second locking devices are divided into two groups which are respectively located at opposite lateral sides of the platform body in the width direction of the platform body; the four second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and two corresponding second locking devices.

[0042] In an achievable manner, the second locking device is an automatic sliding locking device and includes a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;

[0043] during a downward movement of the container when the container is stacked on the rigid platform, the container exerts a pushing force on the sloping surface to drive the second locking member to slide in a direction away from the first locking device and compress the elastic member;

[0044] after the container is stacked on the rigid platform, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to slide towards the first locking device to be locked with the container.

[0045] In an achievable manner, the second locking device is an automatic rotatable locking device and includes a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;

[0046] during a downward movement of the container when the container is stacked on the rigid platform, the container exerts a pushing force on the sloping surface to drive the second locking member to rotate in a direction away from the first locking device and compress the elastic member;

[0047] after the container is stacked on the rigid platform, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to rotate towards the first locking device to be locked with the container.

[0048] In an achievable manner, the second locking device is a vertically movable locking device and includes a second locking member and an elastic member in contact with the second locking device, the second locking member is movable upwards or downwards along the height direction of the platform body;

[0049] after the second locking member is driven to move downwards and compress the elastic member, a first gap is formed between the second locking member and the platform body;

[0050] after the second locking member is driven to move upwards under an elastic force of the elastic member, a second gap is formed between the second locking member and the platform body, wherein the second gap is greater than the first gap.

[0051] In an achievable manner, the second locking device is a vertically movable locking device and includes a second locking member, the second locking member is movable upwards or downwards along the height direction of the platform body;

[0052] after the second locking member is driven to move downwards and stays in a lower position, a first gap is formed between the second locking member and the platform body;

[0053] after the second locking member is driven to move upwards and stays in an upper position, a second gap is formed between the second locking member and the platform body, wherein the second gap is greater than the first gap.

[0054] This application further provides an assembly including the rigid platform described above and a container stacked on and locked with the rigid platform.

[0055] In an achievable manner, the container is provided with a first engaging device corresponding to the first locking device and a second engaging device corresponding to the second locking device, and the first locking device and the second locking device are respectively engaged and locked with the first engaging device and the second engaging device.

[0056] The container or rigid platform in this application is provided with a first locking device and a second locking device on the container or rigid platform, and another container having a footprint approximately being half of the container or rigid platform can be stacked on and locked with the container or rigid platform using the first locking device and the second locking device. Due to the movable structure of the first locking device and the second locking device, when the another container is locked with the container or rigid platform, both the first locking device and the second locking device can move to adaptively adjust their positions according to the engaging devices on the another container, so that the another container does not need to be tilted so as to adjust the locking angle or the difficulty of adjusting the locking angle of the another container is reduced, thereby facilitating the stacking and interlocking operation.

[0057] BRIEF DESCRIPTION OF THE DRAWINGS

[0058] FIG. 1 is a schematic diagram of the container assembly in the first embodiment of this application.

[0059] FIG. 2 is a schematic cross-sectional view of the container assembly before the first locking device is engaged with the first engaging device in the first embodiment of this application.

[0060] FIG. 3 is a schematic cross-sectional view of the container assembly after the first locking device is engaged with the first engaging device in the first embodiment of this application.

[0061] FIG. 4 is a schematic diagram of the first container in the first embodiment of this application.

[0062] FIG. 5 is a top view of the first container in FIG. 4.

[0063] FIG. 6 is a schematic cross-sectional view of the first container in FIG. 4.

[0064] FIG. 7 is a schematic exploded view of the first container in FIG. 4.

[0065] FIG. 8 is a schematic diagram of the second container in the first embodiment of this application.

[0066] FIG. 9 is a schematic diagram of the second container in another embodiment of this application.

[0067] FIG. 10 is a schematic diagram of the first container in another embodiment of this application.

[0068] FIG. 11 is a schematic cross-sectional view of the first container in the second embodiment of this application.

[0069] FIG. 12 is a schematic exploded view of the first container in the second embodiment of this application.

[0070] FIG. 13 is a schematic cross-sectional view of the first container in the third embodiment of this application.

[0071] FIG. 14 is a schematic exploded view of the first container in the third embodiment of this application.

[0072] FIG. 15 is a schematic cross-sectional view of the first container when the second locking device is in an upward extended state in the fourth embodiment of this application.

[0073] FIG. 16 is a schematic cross-sectional view of the first container when the second locking device is in a downward retracted state in the fourth embodiment of this application.

[0074] FIG. 17 is a schematic exploded view of the first container in the fourth embodiment of this application.

[0075] FIG. 18 is a schematic cross-sectional view of the first container in the fifth embodiment of this application.

[0076] FIG. 19 is a schematic exploded view of the first container in the fifth embodiment of this application.

[0077] FIG. 20 is a schematic diagram of the rigid platform in the sixth embodiment of this application.

[0078] FIG. 21 is a schematic diagram of the rigid platform in another embodiment of this application.

[0079] FIG. 22 is a schematic cross-sectional view showing a container is installed and stacked on the rigid platform in the sixth embodiment of this application.

[0080] DETAILED DESCRIPTION OF THE EMBODIMENTS

[0081] The following will provide a further detailed description of the specific implementations of this application in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0082] The terms “first”, “second”, “third”, “fourth”, etc. (if any) in the specification and claims of this application are only used to distinguish similar objects, and are not intended to be used to describe a specific sequence or order.

[0083] The terms “up”, “down”, “left”, “right”, “front”, “back”, “top”, “bottom” (if any) in the specification and claims of this application are defined based on the position of the structure in the figures and the position between the structures in the figures, only for the clarity and convenience of expressing the technical solution. It should be understood that the use of these directional words should not limit the scope of protection in this application.

[0084] First embodiment

[0085] As shown in FIGS. 1 to 8, the first embodiment of this application provides a container assembly including at least one first container 1 and at least one second container 2. The first container 1 and the second container 2 can specifically be storage devices such as toolboxes, storage boxes, transport boxes, transfer boxes, etc.

[0086] As shown in FIGS. 4 and 8, the first container 1 includes a first container body 11, a first locking device 12 provided on the first container body 11, and a second locking device 13 provided on the first container body 11. The structures of the first locking device 12 and the second locking device 13 are different. The first locking device 12 and the second locking device 13 are oppositely arranged, thereby forming a first clamping gap T1 (see FIG. 5) between them. The first clamping gap T1 is used to clamp a bottom portion of the second container 2. The second container 2 has a smaller size than the first container 1. Specifically, the second container 2 has a footprint being half of the first container 1, so that two second containers 2 can be simultaneously installed on the first container 1. The second container 2 includes a second container body 21 and engaging devices provided on the second container body 21, wherein the engaging devices include a first engaging device 22 and a second engaging device 23, both of which are provided on the second container body 21. The first engaging device 22 of the second container 2 is arranged corresponding to the first locking device 12 of the first container 1, and the second engaging device 23 of the second container 2 is arranged corresponding to the second locking device 13 of the first container 1. When the first engaging device 22 is engaged with the first locking device 12 and the second engaging device 23 is engaged with the second locking device 13, the first container 1 and the second container 2 are interlocked to each other.

[0087] As shown in FIGS. 1 to 7, both the first locking device 12 and the second locking device 13 are movable structure and can move relative to the first container body 11. The first container body 11 has a length direction L, a width direction W, and a height direction H, wherein the length direction L is perpendicular to the width direction W, and the length direction L and the width direction W are perpendicular to the height direction H. The first locking device 12 is movable towards or away from the second locking device 13 along the length direction L of the first container body 11. The second locking device 13 is movable towards or away from the first locking device 12 along the length direction L of the first container body 11, or the second locking device 13 is movable upwards or downwards along the height direction H of the first container body 11. The first locking device 12 and the second locking device 13 are used to be locked with two opposite lateral sides of the bottom portion of the second container 2 when the second container 2 is stacked on the first container 1. Specifically, the first locking device 12 and the second locking device 13 are used to be engaged and locked with the first engaging device 22 and the second engaging device 23 that are respectively provided at two opposite lateral sides of the bottom portion of the second container 2, so that the second container 2 is stacked on and interlocked with the first container 1.

[0088] Thus, in the container assembly provided in this embodiment, by providing the first locking device 12 and the second locking device 13 on the first container 1, the first container 1 can be locked with the second container 2 using the first locking device 12 and the second locking device 13. Due to the movable structure of the first locking device 12 and the second locking device 13, when the second container 2 is locked with the first container 1, both the first locking device 12 and the second locking device 13 can move to adaptively adjust their positions according to the engaging devices on the second container 2. As a result, the second container 2 can be directly vertically stacked on the first container 1, and the second container 2 does not need to adjust its locking angle or to slide horizontally in order to be locked with the first container 1, thus facilitating the interlocking operation. Meanwhile, after the second container 2 is stacked on the first container 1, the first locking device 12 and the second locking device 13 can be firmly engaged with the engaging devices of the second container 2 to achieve a stable connection between the first container 1 and the second container 2.

[0089] As shown in FIGS. 2 to 6, in one embodiment, the first locking device 12 is provided on a lateral side of the first container body 11 in the length direction L of the first container body 11, and the second locking device 13 is provided on a top surface 111 of the first container body 11. The top surface 111 is the installation surface of the first container 1 on which the second container 2 is installed. The first clamping gap T1 between the first locking device 12 and the second locking device 13 can precisely receive the second container 2, thereby enabling the first container 1 to be stacked and interlocked with the second container 2 having a smaller size than the first container 1. In this embodiment, both the first container 1 and the second container 2 are rectangular structures, and the second locking device 13 is located at the middle position of the top surface 111 in the length direction L of the first container body 11, so that the first container 1 can be stacked and interlocked with two second containers 2 each having a footprint approximately being half of the first container 1 (that is, the length of the second container 2 is the same or similar to the width of the first container 1, while the width of the second container 2 is approximately half of the length of the first container 1).

[0090] As shown in FIGS. 2 to 6, in one embodiment, the first container 1 includes at least two first locking devices 12 provided on the first container body11. The at least two first locking devices 12 are respectively provided on opposite lateral sides of the first container body 11 in the length direction L of the first container body 11. The at least two first locking devices 12 are oppositely arranged, thereby forming a second clamping gap T2 (see FIG. 5) between them. The second clamping gap T2 is greater than the first clamping gap T1. Specifically, in this embodiment, the second clamping gap T2 is approximately twice the first clamping gap T1. Instead of two second containers 2, another first container 1 can also be installed and stacked on the first container 1. The second clamping gap T2 is used to clamp another first container 1 that is stacked on the first container 1. That is, when the second container 2 having a smaller size than the first container 1 is stacked on the first container 1, the first clamping gap T1 is used to clamp the second container 2, and the first container 1 and the second container 2 are interlocked with each other using the first locking device 12 and the second locking device 13 on the first container 1 to respectively engage with the first engaging device 22 and the second engaging device 23 on the second container 2; when another first container 1 having the same size as the first container 1 is stacked on the first container 1, the second clamping gap T2 is used to clamp the another first container 1 that is stacked on the first container 1.

[0091] Specifically, the first container 1 further includes a third engaging device 14 and a fourth engaging device 15, which are respectively provided on opposite lateral sides of the bottom portion of the first container body 11. When another first container 1 is stacked on the first container 1, the two first containers 1 are interlocked with each other using the two first locking devices 12 on opposite lateral sides of the first container 1 to respectively engage with the third engaging device 14 and the fourth engaging device 15 on the another first container 1 that is stacked on the first container 1. Therefore, by forming the first clamping gap T1 and the second clamping gap T2 on the first container 1, different clamping gaps can be selected according to actual needs in order to lock the container (the second container 2 or another first container 1) that is stacked on the first container 1.

[0092] In this embodiment, there are two first locking devices 12, which are respectively provided on opposite lateral sides of the first container body 11 in the length direction L of the first container body 11, with a single first locking device 12 provided on each lateral side of the first container body 11 in the length direction L of the first container body 11. In other embodiments, more first locking devices 12 can be provided, for example, four first locking devices 12 can be provided, with two first locking devices 12 provided on each lateral side of the first container body 11 in the length direction L of the first container body 11.

[0093] As shown in FIGS. 2 to 6, in one embodiment, the first container 1 includes multiple second locking devices 13, which are all located at the middle position of the top surface 111 in the length direction L of the first container body 11. The multiple second locking devices 13 are respectively arranged opposite to the first locking devices 12 to form two first clamping gaps T1. Specifically, in this embodiment, there are two second locking devices 13 provided on the top surface 111 of the first container body 11, the two second locking devices 13 are located at the middle position of the top surface 111 in the length direction L of the first container body 11, and the two second locking devices 13 are also located at a middle position of the top surface 111 in the width direction W of the first container body 11, that is, the two second locking devices 13 are located at the center of the top surface 111. The two second locking devices 13 are located adjacent to each other or integrally formed. The two second locking devices 13 are arranged opposite to the at least two first locking devices 12 to form two first clamping gaps T1, with each first clamping gap T1 formed between at least one first locking device 12 and a corresponding second locking device 13, thereby allowing the first container 1 to be stacked and interlocked with two second containers 2 using the at least two first locking devices 12 and the two second locking devices 13.

[0094] In other embodiments, more second locking devices 13 can be provided, for example, as shown in FIG. 10, there are four second locking devices 13 provided on the top surface 111 of the first container body 11. The four second locking devices 13 are located at the middle position of the top surface 111 in the length direction L of the first container body 11, and the four second locking devices 13 are divided into two groups which are respectively located at opposite lateral sides of the first container body 11 in the width direction W of the first container body 11. The four second locking devices 13 are arranged opposite to the at least two first locking devices 12 to form two first clamping gaps T1, with each first clamping gap T1 formed between at least one first locking device 12 and two corresponding second locking devices 13, allowing the first container 1 to be stacked and interlocked with two second containers 2 using the at least two first locking devices 12 and the four second locking devices 13.

[0095] As shown in FIG. 7, in one embodiment, the first locking device 12 is a manually-operated sliding locking device. The first locking device 12 includes a first locking member 121, and the first locking member 121 can move horizontally relative to the first container body 11 along the length direction L of first container body 11. The first locking member 121 is used for locking with the second container 2. In this embodiment, the edge position of the first container body 11 is provided with a first installation groove 113, and the first locking member 121 is arranged in the first installation groove 113. The first locking member 121 can slide horizontally in the first installation groove 113 towards or away from the second locking device 13 along the length direction L of the first container body 11. Meanwhile, there are sliding grooves 114 provided on both sides of the first installation groove 113, and opposite sides of the first locking member 121 are respectively movably connected to the sliding grooves 114 on the both sides, thereby defining the sliding path of the first locking member 121 towards or away from the second locking device 13. As shown in FIG. 2, when the first locking member 121 slides outward (i.e., away from the second locking device 13), the first locking member 121 is in an unlocked state in which the first locking member 121 is disengaged from the first engaging device 22 of the second container 2. As shown in FIG. 3, when the first locking member 121 slides inward (i.e., towards the second locking device 13), the first locking member 121 is in a locked state in which the first locking member 121 is engaged with the first engaging device 22 of the second container 2. In other embodiments, the first locking device 12 can also be other locking structures such as an automatic sliding locking device, a rotatable locking device, a flipping locking device, etc.

[0096] As shown in FIGS. 2, 3, 6, and 7, in one embodiment, the second locking device 13 is an automatic sliding locking device. The second locking device 13 includes a second locking member 131 and an elastic member 132. The second locking member 131 can move horizontally relative to the first container body 11 towards or away from the first locking device 12 along the length direction L of the first container body 11, and is used to lock with the second container 2. The second locking member 131 is provided with a sloping surface 131A, and the sloping surface 131A is used to contact the second engaging device 23 on the second container 2, so that the second locking member 131 can retract and move after being compressed by the second engaging device 23. The elastic member 132 is in contact with the second locking member 131, and the elastic member 132 is used to drive the second locking member 131 to move in order to automatically maintain the second locking member 131 in a locked state.

[0097] As shown in FIGS. 2, 3, 6, and 7, in one embodiment, the second locking device 13 further includes a mounting seat 133. The second locking member 131 and the elastic member 132 are both arranged in the mounting seat 133. The mounting seat 133 is fixedly installed on the first container body 11. The top surface 111 of the first container body 11 is provided with a second installation groove 112, and the second locking device 13 is arranged in the second installation groove 112. The second locking member 131 can slide horizontally in the second installation groove 112 towards or away from the first locking device 12. The second installation groove 112 is used to accommodate the second locking device 13 to prevent the second locking device 13 from protruding above the top surface 111 of the first container body 11. In this way, when the second container 2 or another first container 1 is stacked on the first container 1, the second locking device 13 will not interfere with the second container 2 or the another first container 1. Specifically, in this embodiment, the two second locking devices 13 each include a second locking member 131, and the two second locking devices 13 share the same elastic member 132 and the same mounting seat 133; the two second locking members 131 are respectively arranged on opposite sides of the mounting seat 133, and the elastic member 132 is horizontally disposed between the two second locking members 131 along the length direction L of the first container body 11; the elastic member 132 may be a spring, which is sandwiched between the two second locking members 131. In other embodiments, the two second locking devices 13 may each include a second locking member 131, an elastic member 132, and a mounting seat 133.

[0098] As shown in FIGS. 2 to 6, in one embodiment, the first container body 11 includes a cover (not labeled) that is detachably installed on the first container body 11, so that items can be placed into or taken out from the first container body 11 after removing the cover. The two first locking devices 12 and the two second locking devices 13 are all provided on the cover of the first container body 11, and the third engaging device 14 and the fourth engaging device 15 are all provided on the bottom portion of the first container body 11, wherein the third engaging device 14 and the fourth engaging device 15 respectively correspond to the two first locking devices 12.

[0099] The second container body 21 also includes a cover (not labeled) that is detachably installed on the second container body 21, so that items can be placed into or taken out from the second container body 21 after removing the cover. The first engaging device 22 and the second engaging device 23 are both provided on the bottom portion of the second container body 21. In addition, as shown in FIG. 1 to FIG. 3, the first locking device 12 and the second locking device 13 are also provided on the cover of the second container body 21, and the first locking device 12 and the second locking device 13 are respectively arranged on two opposite lateral sides of the second container body 21, wherein the first locking device 12 corresponds to the first engaging device 22, and the second locking device 13 corresponds to the second engaging device 23. Thus, another second container 2 can be stacked on the second container 2, and the two second containers 2 can be interlocked with each other using the first locking device 12 and the second locking device 13 on the lower second container 2 to respectively engage with the first engaging device 22 and the second engaging device 23 on the upper second container 2 that is stacked on the lower second container 2.

[0100] As shown in FIGS. 2, 3, and 8, in one embodiment, the first engaging device 22 and the second engaging device 23 are respectively provided on opposite lateral sides of the bottom portion of the second container body 21. The first engaging device 22 and the second engaging device 23 protrude laterally outwardly from the side surfaces 212 on opposite lateral sides of the second container body 21, and also protrude downwardly from a bottom surface 211 of the second container body 21. When the second container 2 is stacked and interlocked with the first container 1, the bottom surface 211 of the second container 2 is in contact with the top surface 111 of the first container 1, the first engaging device 22 is accommodated in the first installation groove 113 and engaged with the first locking device 12, and the second engaging device 23 is accommodated in the second installation groove 112 and engaged with the second locking device 13. Further, due to the elastic member 132 provided on the second locking device 13, the locking path between the second container 2 and the first container 1 is vertical, that is, when the second container 2 and the first container 1 are interlocked to each other, there is no need for lateral sliding insertion, and they can be directly locked after being aligned vertically. As shown in FIG. 9, in another embodiment, the second engaging device 23 can be set to not protrude laterally outwardly from the side surface 212 of the second container body 21, which can avoid interference between the second engaging devices 23 on the two second containers 2 that are simultaneously stacked and installed on the first container 1.

[0101] In one embodiment, each of the first engaging device 22, the second engaging device 23, the third engaging device 14 and the fourth engaging device 15 includes an engaging groove 30, and the engaging groove 30 can be engaged with the first locking device 12 or the second locking device 13, so that the stacked two containers are interlocked with each other.

[0102] As shown in FIGS. 7 and 8, in one embodiment, the first container body 11 is provided with multiple first positioning parts 115 spaced apart from each other, and the second container body 21 is provided with multiple second positioning parts 213 spaced apart from each other. The multiple second positioning parts 213 on the second container body 21 are inserted and matched with the corresponding first positioning parts 115 on the first container body 11 respectively, thereby positioning and limiting the second container 2 and the first container 1 in all directions except for the vertical direction. In this embodiment, the first positioning part 115 is a groove, and the second positioning part 213 is a protrusion; in other embodiments, the first positioning part 115 and the second positioning part 213 may also have other structures.

[0103] As shown in FIGS. 2, 3, and 7, in one embodiment, the stacking and interlocking process of the first container 1 and the second container 2 is as follows.

[0104] As shown in FIGS. 2 and 7, the first locking member 121 is firstly operated to slide outward (i.e., away from the second locking device 13), so that the first locking device 12 is in an unlocked state; then, the second container 2 is moved to a position above the first container 1, and the second container 2 is lowered down towards the first container 1. During the downward movement of the second container 2, the sloping surface 131A on the second locking member 131 comes into contact with the second engaging device 23, the second container 2 exerts a pushing force on the sloping surface 131A to drive the second locking member 131 to slide in a direction away from the first locking device 12, and the elastic member 132 is compressed and stores energy; after the second container 2 is lowered into place, the pushing force exerted on the sloping surface 131A disappears, the second locking member 131 loses the pushing action of the second engaging device 23, and the second locking member 131 is driven under an elastic force of the elastic member 132 to automatically slide towards the first locking device 12 to be locked with the second engaging device 23; then, the first locking member 121 is operated to slide inward (i.e., towards the second locking device 13) to be locked with the first engaging device 22, so that the first locking device 12 is in a locked state, thereby completing the stacking and interlocking of the first container 1 and the second container 2. During this process, the second container 2 is only required to be vertically lowered down towards the first container 1, and there is no need to adjust the locking angle of the second container 2 by tilting the second container 2, which is easy to operate. Since the second container 2 is not required to be tilted, the second container 2 is prevented from interfering with the other upper container having already been installed on the first container 1 during the stacking and interlocking process of the second container 2.

[0105] The container assembly in this embodiment is provided with a first locking device 12 and a second locking device 13 on the first container 1, and the first container 1 is interlocked with the second container 2 using the first locking device 12 and the second locking device 13; due to the movable structure of the first locking device 12 and the second locking device 13, when the second container 2 is stacked on and locked with the first container 1, both the first locking device 12 and the second locking device 13 can move to adaptively adjust their positions according to the engaging devices on the second container 2, so that the second container 2 does not need to adjust the locking angle, thereby facilitating the stacking and interlocking operation; meanwhile, after the second container 2 is stacked on and locked with the first container 1, the first locking device 12 and the second locking device 13 can be firmly engaged with the engaging devices on the second container 2 so as to achieve a stable connection between the first container 1 and the second container 2.

[0106] Second embodiment

[0107] As shown in FIGS. 11 and 12, the first container 1 provided in the second embodiment of this application is basically the same as the first embodiment, with the difference existing in the structure of the second locking device 13.

[0108] Specifically, in this embodiment, the second locking device 13 is an automatic rotatable locking device. The second locking device 13 includes a second locking member 131 and an elastic member 132. The second locking member 131 can rotate relative to the first container body 11. The elastic member 132 is in contact with the second locking member 131, and the elastic member 132 is used to drive the second locking member 131 to rotate in order to automatically maintain the second locking member 131 in a locked state. When the second container 2 is stacked on the first container 1, the second container 2 is lowered down towards the first container 1. During the downward movement of the second container 2, the sloping surface 131A on the second locking member 131 comes into contact with the second engaging device 23, the second container 2 exerts a pushing force on the sloping surface 131A to drive the second locking member 131 to rotate in a direction away from the first locking device 12, and the elastic member 132 is compressed and stores energy; after the second container 2 is lowered into place, the pushing force exerted on the sloping surface 131A disappears, the second locking member 131 loses the pushing action of the second engaging device 23, and the second locking member 131 is driven under an elastic force of the elastic member 132 to automatically rotate towards the first locking device 12 to be locked with the second engaging device 23.

[0109] In one embodiment, the second locking device 13 further includes a mounting seat 133, and the second locking member 131 and the elastic member 132 are both arranged in the mounting seat 133. The mounting seat 133 is fixedly installed on the first container body 11. The second locking member 131 is rotatably connected to the mounting seat 133 through a rotating shaft 134. The two second locking devices 13 each include a second locking member 131, and the two second locking devices 13 share the same elastic member 132 and the same mounting seat 133; the two second locking members 131 are respectively arranged on opposite sides of the mounting seat 133, and the elastic member 132 is horizontally disposed between the two second locking members 131 along the length direction L of the first container body 11; the elastic member 132 may be a spring, which is sandwiched between the two second locking members 131. In other embodiments, the elastic member 132 can also be a torsion spring, which can be sleeved on the rotating shaft 134 to drive the second locking member 131 to rotate.

[0110] The other structures and functions of this embodiment are the same or similar to those of the first embodiment, and will not be repeated here.

[0111] Third Embodiment

[0112] As shown in FIGS. 13 and 14, the first container 1 provided in the third embodiment of this application is basically the same as the first embodiment, with the difference existing in the structure of the second locking device 13.

[0113] Specifically, in this embodiment, the second locking device 13 is a vertically movable locking device, specifically a vertically movable automatic locking device. The second locking device 13 includes a second locking member 131 and an elastic member 132. The second locking member 131 can move upwards or downward relative to the first container body 11. That is, the second locking member 131 is movable upwards or downwards along the height direction of the first container body 11. The elastic member 132 is in contact with the second locking member 131, and the elastic member 132 is vertically disposed between the second locking member 131 and the first container body 11. The elastic member 132 may be a spring, which is sandwiched between the second locking member 131 and the first container body 11. The second locking member 131 can be driven to move downwards under an external force. For example, if another first container 1 is stacked on the first container 1, the second locking member 131 is compressed by the another first container 1, so that the second locking member 131 is driven to move downwards. After the second locking member 131 is driven to move downwards and compress the elastic member 132, a first gap is formed between the second locking member 131 and the first container body 11. The elastic member 132 is used to drive the second locking member 131 to move upward. After the second locking member 131 is driven to move upwards under an elastic force of the elastic member 132, a second gap is formed between the second locking member 131 and the first container body 11, wherein the second gap is greater than the first gap. That is, the elastic member 132 will lift the second locking member 131 upwards to form a relatively large gap between the second locking member 131 and the first container body 11 (i.e., between the second locking member 131 and the bottom wall of the second installation groove 112), which facilitates the second engaging device 23 on the second container 2 to be engaged with the second locking member 131 when the second container 2 is stacked on the first container 1. It should be noted that in this embodiment, when the second container 2 is stacked on the first container 1, in order to enable the second engaging device 23 of the second container 2 to be engaged with the second locking member 131 of the first container 1, the second container 2 needs to be driven to move obliquely downwards instead of vertically downwards. Since the elastic member 132 can lift the second locking member 131 upwards to form a relatively large gap between the second locking member 131 and the first container body 11 for facilitating the second engaging device 23 to be engaged with the second locking member 131 when the second container 2 is stacked on the first container 1, the second container 2 is only required to be tilted in a small angle, and the difficulty of adjusting the locking angle of the second container 2 is greatly reduced, thereby facilitating the stacking and interlocking operation of the second container 2.

[0114] In this embodiment, after the elastic member 132 lifts the second locking member 131 upwards, the second locking device 13 partially protrudes above the top surface 111 of the first container body 11, as shown in FIG. 13. However, when another container is stacked on the first container 1, the second locking member 131 can be compressed by the another container stacked on the first container 1, so that the second locking member 131 is driven to move downwards and entirely received in the second installation groove 112.

[0115] In one embodiment, the two second locking devices 13 each include a second locking member 131 and an elastic member 132, and the two second locking members 131 are connected as an integrated structure.

[0116] In one embodiment, a positioning groove 1310 is provided on a side wall of the second locking member 131, and a positioning shaft 116 is provided on the first container body 11. Specifically, the positioning shaft 116 is provided on an inner wall of the second installation groove 112. The positioning shaft 116 extends into the positioning groove 1310, and the positioning shaft 116 cooperates with the positioning groove 1310 to limit the upward and downward movement direction and distance of the second locking member 131.

[0117] The other structures and functions of this embodiment are the same or similar to those of the first embodiment, and will not be repeated here.

[0118] Fourth Embodiment

[0119] As shown in FIGS. 15 to 17, the first container 1 provided in the fourth embodiment of this application is basically the same as the third embodiment, with the difference existing in the structure of the second locking device 13.

[0120] Specifically, in this embodiment, the second locking device 13 is also a vertically movable locking device. Unlike the third embodiment, the second locking device 13 in this embodiment does not have an elastic member, and the second locking device 13 is specifically a manually-operated vertically movable locking device.

[0121] The second locking device 13 includes a second locking member 131, and the second locking member 131 can be moved upwards or downwards relative to the first container body 11. That is, the second locking member 131 is movable upwards or downwards along the height direction of the first container body 11. The second locking member 131 can be driven to move downwards under an external force, for example, by a hand of the user. After the second locking member 131 is driven to move downwards and stays in a lower position, a first gap is formed between the second locking member 131 and the first container body 11. After the second locking member 131 is driven to move upwards and stays in an upper position, a second gap is formed between the second locking member 131 and the first container body 11, wherein the second gap is greater than the first gap.

[0122] In this embodiment, after the second locking member 131 is driven to move downwards and stays in the lower position, the second locking device 13 is entirely received in the second installation groove 112 and does not protrude above the top surface 111 of the first container body 11, as shown in FIG. 16. After the second locking member 131 is driven to move upwards and stays in the upper position, the second locking device 13 partially protrudes above the top surface 111 of the first container body 11, as shown in FIG. 15.

[0123] Specifically, a positioning groove 1310 is provided on a side wall of the second locking member 131, and a positioning shaft 116 is provided on the first container body 11. Specifically, the positioning shaft 116 is provided on an inner wall of the second installation groove 112. The positioning shaft 116 extends into the positioning groove 1310, and the positioning shaft 116 cooperates with the positioning groove 1310 to limit the upward and downward movement direction and distance of the second locking member 131. The positioning groove 1310 has a first locking position 1311 and a second locking position 1312. The first locking position 1311 is located above the second locking position 1312, and a protruding rib 1313 is provided between the first locking position 1311 and the second locking position 1312. As shown in FIG. 15, when manually pulling up the second locking member 131, the positioning shaft 116 moves past the protruding rib 1313 and is stuck in the second locking position 1312. At this time, there is a relatively large gap between the second locking member 131 and the first container body 11, which facilitates the second engaging device 23 on the second container 2 to be engaged with the second locking member 131 when the second container 2 is stacked on the first container 1. It should be noted that in this embodiment, when the second container 2 is stacked on the first container 1, in order to enable the second engaging device 23 of the second container 2 to be engaged with the second locking member 131 of the first container 1, the second container 2 needs to be driven to move obliquely downwards instead of vertically downwards. As shown in FIG. 16, when the second locking member 131 is manually pressed down (or the second locking member 131 is driven to move downward under the pressure of the upper container), the positioning shaft 116 moves past the protruding rib 1313 and is stuck in the first locking position 1311. At this time, the second locking member 131 retracts downward, facilitating the second locking device 13 to be stored when it is not in use.

[0124] In one embodiment, the two second locking devices 13 each include a second locking member 131, and the two second locking members 131 are connected as an integrated structure, so that the two second locking members 131 are operated separately.

[0125] The other structures and functions of this embodiment are the same or similar to those of the third embodiment, and will not be repeated here.

[0126] Fifth Embodiment

[0127] As shown in FIGS. 18 and 19, the first container 1 provided in the fifth embodiment of this application is basically the same as the fourth embodiment, with the difference existing in the structure of the second locking device 13. Specifically, in this embodiment, the two second locking devices 13 each include a second locking member 131, and the two second locking members 131 are separated structures (that is, they are not connected as an integrated structure), so that the two second locking members 131 are operated separately.

[0128] The other structures and functions of this embodiment are the same or similar to those of the fourth embodiment, and will not be repeated here.

[0129] Sixth Embodiment

[0130] The sixth embodiment of this application provides an assembly including a container (e.g., the first container 1 described in the above embodiments) and another container (e.g., the second container 2 described in the above embodiments) stacked on and locked with the container.

[0131] Specifically, the another container (namely, the second container 2) is provided with a first engaging device 22 corresponding to the first locking device 12 and a second engaging device 23 corresponding to the second locking device 13. The first locking device 12 and the second locking device 13 are respectively engaged and locked with the first engaging device 22 and the second engaging device 23, such that the another container (namely, the second container 2) is stacked on and locked with the container (namely, the first container 1).

[0132] Seventh Embodiment

[0133] As shown in FIG. 20 to FIG. 22, the seventh embodiment of this application provides a rigid platform 3, which can be a flatbed truck, an external board, an adapter board, a workbench, a drawing board, etc. A container (e.g., the second container 2 described in the above embodiments) having a footprint approximately being half of the rigid platform 3 can be stacked on and locked with the rigid platform 3. The rigid platform 3 includes:

[0134] a platform body 31 having a length direction, a width direction, and a height direction;

[0135] a first locking device 12 provided on a lateral side of the platform body 31 in the length direction of the platform body 31; and

[0136] a second locking device 13 provided on a top surface (not labelled) of the platform body 31 and located at a middle position of the top surface in the length direction of the platform body 31, wherein the first locking device 12 and the second locking device 13 are oppositely arranged to form a first clamping gap (not labelled) therebetween, and the first clamping gap is configured for clamping a bottom portion of the container;

[0137] both the first locking device 12 and the second locking device 13 are movable structure, wherein the first locking device 12 is movable towards or away from the second locking device 13 along the length direction of the platform body 31, and the second locking device 13 is movable towards or away from the first locking device 12 along the length direction of the platform body 31, or the second locking device 13 is movable upwards or downwards along the height direction of the platform body 31;

[0138] the first locking device 12 and the second locking device 13 are configured to be locked with two opposite lateral sides of the bottom portion of the container when the container is stacked on the rigid platform 3.

[0139] In this embodiment, the structures of the first locking device 12 and the second locking device 13 on the rigid platform 3 are the same as those of the first locking device 12 and the second locking device 13 on the first container 1 described above. Therefore, the specific structures of the first locking device 12 and the second locking device 13 on the rigid platform 3 can refer to the first to fifth embodiments, and will not be repeated here.

[0140] In one embodiment, the rigid platform 3 further includes rollers 32 connected to the bottom surface of the platform body 31, thus facilitating to move and transport containers from one place to another place using the rigid platform 3. In other embodiments, the rigid platform 3 can also have other structures. For example, a handle may be further connected to the platform body 31, so that the platform body 31 can be driven to move by hands using the handle.

[0141] Eighth Embodiment

[0142] The eighth embodiment of this application provides an assembly including a rigid platform 3 described in the seventh embodiment and a container (e.g., the second container 2 described in the above embodiments) stacked on and locked with the rigid platform 3.

[0143] Specifically, the container (namely, the second container 2) is provided with a first engaging device 22 corresponding to the first locking device 12 and a second engaging device 23 corresponding to the second locking device 13. The first locking device 12 and the second locking device 13 are respectively engaged and locked with the first engaging device 22 and the second engaging device 23, such that the container (namely, the second container 2) is stacked on and locked with the rigid platform 3.

[0144] The above are only the specific embodiments of this application, but the scope of protection of this application is not limited to this. Any technical personnel familiar with this technical field who can easily think of changes or replacements within the scope of technology disclosed in this application should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be based on the protection scope of the claims.

Claims

1.A container configured for another container having a footprint approximately being half of the container to be stacked thereon and locked therewith, the container comprising:a container body having a length direction, a width direction, and a height direction;a first locking device provided on a lateral side of the container body in the length direction of the container body;a second locking device provided on a top surface of the container body and located at a middle position of the top surface in the length direction of the container body, wherein the first locking device and the second locking device are oppositely arranged to form a first clamping gap therebetween, and the first clamping gap is configured for clamping a bottom portion of the another container;both the first locking device and the second locking device are movable structure, wherein the first locking device is movable towards or away from the second locking device along the length direction of the container body, and the second locking device is movable towards or away from the first locking device along the length direction of the container body, or the second locking device is movable upwards or downwards along the height direction of the container body;the first locking device and the second locking device are configured to be locked with two opposite lateral sides of the bottom portion of the another container when the another container is stacked on the container.2.The container as claimed in claim1, wherein there are at least two first locking devices provided on the container body, the at least two first locking devices are respectively provided on opposite lateral sides of the container body in the length direction of the container body, the at least two first locking devices are oppositely arranged to form a second clamping gap therebetween, and the second clamping gap is greater the first clamping gap.3.The container as claimed in claim2, wherein there are two second locking devices provided on the top surface of the container body, the two second locking devices are located at the middle position of the top surface in the length direction of the container body, and the two second locking devices are located at a middle position of the top surface in the width direction of the container body; the two second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and a corresponding second locking device.4.The container as claimed in claim2, wherein there are four second locking devices provided on the top surface of the container body, the four second locking devices are located at the middle position of the top surface in the length direction of the container body, and the four second locking devices are divided into two groups which are respectively located at opposite lateral sides of the container body in the width direction of the container body; the four second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and two corresponding second locking devices.5.The container as claimed in claim1, wherein the second locking device is an automatic sliding locking device and comprises a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;during a downward movement of the another container when the another container is stacked on the container, the another container exerts a pushing force on the sloping surface to drive the second locking member to slide in a direction away from the first locking device and compress the elastic member;after the another container is stacked on the container, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to slide towards the first locking device to be locked with the another container.6.The container as claimed in claim1, wherein the second locking device is an automatic rotatable locking device and comprises a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;during a downward movement of the another container when the another container is stacked on the container, the another container exerts a pushing force on the sloping surface to drive the second locking member to rotate in a direction away from the first locking device and compress the elastic member;after the another container is stacked on the container, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to rotate towards the first locking device to be locked with the another container.7.The container as claimed in claim1, wherein the second locking device is a vertically movable locking device and comprises a second locking member and an elastic member in contact with the second locking device, the second locking member is movable upwards or downwards along the height direction of the container body;after the second locking member is driven to move downwards and compress the elastic member, a first gap is formed between the second locking member and the container body;after the second locking member is driven to move upwards under an elastic force of the elastic member, a second gap is formed between the second locking member and the container body, wherein the second gap is greater than the first gap.8.The container as claimed in claim1, wherein the second locking device is a vertically movable locking device and comprises a second locking member, the second locking member is movable upwards or downwards along the height direction of the container body;after the second locking member is driven to move downwards and stays in a lower position, a first gap is formed between the second locking member and the container body;after the second locking member is driven to move upwards and stays in an upper position, a second gap is formed between the second locking member and the container body, wherein the second gap is greater than the first gap.9.An assembly, comprising the container as claimed in any of claims1to8and another container stacked on and locked with the container.10.The assembly as claimed in claim9, wherein the another container is provided with a first engaging device corresponding to the first locking device and a second engaging device corresponding to the second locking device, and the first locking device and the second locking device are respectively engaged and locked with the first engaging device and the second engaging device.11.A rigid platform configured for a container having a footprint approximately being half of the rigid platform to be stacked thereon and locked therewith, the rigid platform comprising:a platform body having a length direction, a width direction, and a height direction;a first locking device provided on a lateral side of the platform body in the length direction of the platform body;a second locking device provided on a top surface of the platform body and located at a middle position of the top surface in the length direction of the platform body, wherein the first locking device and the second locking device are oppositely arranged to form a first clamping gap therebetween, and the first clamping gap is configured for clamping a bottom portion of the container;both the first locking device and the second locking device are movable structure, wherein the first locking device is movable towards or away from the second locking device along the length direction of the platform body, and the second locking device is movable towards or away from the first locking device along the length direction of the platform body, or the second locking device is movable upwards or downwards along the height direction of the platform body;the first locking device and the second locking device are configured to be locked with two opposite lateral sides of the bottom portion of the container when the container is stacked on the rigid platform.12.The rigid platform as claimed in claim11, wherein there are at least two first locking devices provided on the platform body, the at least two first locking devices are respectively provided on opposite lateral sides of the platform body in the length direction of the platform body, the at least two first locking devices are oppositely arranged to form a second clamping gap therebetween, and the second clamping gap is greater the first clamping gap.13.The rigid platform as claimed in claim12, wherein there are two second locking devices provided on the top surface of the platform body, the two second locking devices are located at the middle position of the top surface in the length direction of the platform body, and the two second locking devices are located at a middle position of the top surface in the width direction of the platform body; the two second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and a corresponding second locking device.14.The rigid platform as claimed in claim12, wherein there are four second locking devices provided on the top surface of the platform body, the four second locking devices are located at the middle position of the top surface in the length direction of the platform body, and the four second locking devices are divided into two groups which are respectively located at opposite lateral sides of the platform body in the width direction of the platform body; the four second locking devices are arranged opposite to the at least two first locking devices to form two first clamping gaps, with each first clamping gap formed between at least one first locking device and two corresponding second locking devices.15.The rigid platform as claimed in claim11, wherein the second locking device is an automatic sliding locking device and comprises a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;during a downward movement of the container when the container is stacked on the rigid platform, the container exerts a pushing force on the sloping surface to drive the second locking member to slide in a direction away from the first locking device and compress the elastic member;after the container is stacked on the rigid platform, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to slide towards the first locking device to be locked with the container.16.The rigid platform as claimed in claim11, wherein the second locking device is an automatic rotatable locking device and comprises a second locking member and an elastic member in contact with the second locking device, the second locking member is provided with a sloping surface;during a downward movement of the container when the container is stacked on the rigid platform, the container exerts a pushing force on the sloping surface to drive the second locking member to rotate in a direction away from the first locking device and compress the elastic member;after the container is stacked on the rigid platform, the pushing force exerted on the sloping surface disappears, and the second locking member is driven under an elastic force of the elastic member to rotate towards the first locking device to be locked with the container.17.The rigid platform as claimed in claim11, wherein the second locking device is a vertically movable locking device and comprises a second locking member and an elastic member in contact with the second locking device, the second locking member is movable upwards or downwards along the height direction of the platform body;after the second locking member is driven to move downwards and compress the elastic member, a first gap is formed between the second locking member and the platform body;after the second locking member is driven to move upwards under an elastic force of the elastic member, a second gap is formed between the second locking member and the platform body, wherein the second gap is greater than the first gap.18.The rigid platform as claimed in claim11, wherein the second locking device is a vertically movable locking device and comprises a second locking member, the second locking member is movable upwards or downwards along the height direction of the platform body;after the second locking member is driven to move downwards and stays in a lower position, a first gap is formed between the second locking member and the platform body;after the second locking member is driven to move upwards and stays in an upper position, a second gap is formed between the second locking member and the platform body, wherein the second gap is greater than the first gap.19.An assembly, comprising the rigid platform as claimed in any of claims11to18and a container stacked on and locked with the rigid platform.20.The assembly as claimed in claim19, wherein the container is provided with a first engaging device corresponding to the first locking device and a second engaging device corresponding to the second locking device, and the first locking device and the second locking device are respectively engaged and locked with the first engaging device and the second engaging device.

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