An assembled stacked structure

Abstract

The present invention provides an assembled stacking structure, which includes a number of stackable containers. The stacked containers are connected by a locking structure and an auxiliary limiting structure. The locking structure and the auxiliary limiting structure are used to relatively fix the stacked containers in the tangential and normal directions of the joint surface between the containers. After two containers are stacked, the relative positions are simultaneously fixed by the auxiliary limiting structure, so that there are more connection points between two adjacent overlapping containers in addition to the connection of the locking structure. The multi-point connection enables a reliable connection to be formed between the two containers participating in the cooperation. The locking structure in the present invention can endow the containers with more extended functions, facilitate the connection and combination of more containers for use, and can be continuously stacked and connected for capacity expansion as needed, forming a composite storage device with a larger capacity and finer classification; it can also be conveniently disassembled, is easy to carry and transport, and adapts to different application scenarios.

Description

Technical Field

[0001] The present invention relates to a storage tool, and more specifically, to an assembled stacking structure. Background Art

[0002] When using a storage tool to store items, people hope to classify and store the items according to their types or specifications within a limited storage space. Otherwise, if the items are mixedly placed regardless of size and use, it will extremely inconvenient to find and retrieve the items. For this reason, a variety of products have been introduced on the market for classified storage of items. Some form different storage areas for classified storage by partitioning the interior into chambers. Since the interior chambers of such containers cannot be separated from the container, it is sometimes inconvenient to use the items. For example, when a multi-chamber toolbox is carried to the work site each time, most of the tools in it are not used, which instead increases the physical consumption of carrying the toolbox, and the total capacity of such containers also has a limit. Some are composed of a stacked combination of smaller containers to form a larger storage device. Although such products can be conveniently expanded according to needs, the connection structures used for the combination of containers often have poor concealment, affecting the appearance neatness, and thus affecting the purchase intention of consumers. The utility model with the publication number CN213197490U discloses a maintenance toolbox for elevators, including a box body, a box cover is hinged to the top of the box body, a handle frame is rotatably connected to the top of the box cover, limiting pieces are fixedly connected to both the left and right sides of the box cover, rotating plates are movably connected to the other ends of the two limiting pieces away from the box cover, limiting rods are movably connected to the inner sides of the two limiting pieces, lock holes are opened in the interior of the limiting rods, adjusting pieces are fixedly connected to both the left and right sides of the box body, adjusting springs are movably connected to the interior of the adjusting pieces, and limiting insertion rods are fixedly connected to the outer parts of the adjusting springs. This maintenance toolbox for elevators has an overall structure that is convenient for flexible adjustment and placement of elevator maintenance tools, and is very convenient to carry, thus effectively solving the problem that it is difficult to determine when carrying due to the frequent types of maintenance tools, and it is more troublesome to carry when there are a large number of them. However, the locking structure used when the toolboxes are stacked and fixed has large dimensions and is all exposed, affecting the appearance simplicity. Summary of the Invention

[0003] The connection structure of the existing stacked storage tools has poor concealment, affecting the appearance simplicity. To overcome this defect, the present invention provides an assembled stacking structure that can be conveniently used to stack and expand storage tools and can keep the appearance neat.

[0004] The technical solution of the present invention is: an assembled stacking structure, including a number of stackable containers, the stacked containers are connected by a locking structure and an auxiliary limiting structure, and the locking structure and the auxiliary limiting structure are used to relatively fix the stacked containers in the tangential and normal directions of the joint surface between the containers. After two containers are stacked, the relative positions are fixed by the auxiliary limiting structure at the same time, so that there are more connection points between two adjacent overlapping containers in addition to the connection of the locking structure. The multi-point connection makes a reliable connection formed between the two containers participating in the cooperation.

[0005] Preferably, the locking structure includes a locking member and a first engaging portion that can form a lock with the locking member. The locking member and the first engaging portion are located on the joint surfaces of two adjacent overlapping containers and are respectively provided on two adjacent overlapping containers. The auxiliary limiting structure includes a limiting member and a second engaging portion that can form a lock with the limiting member. The limiting member and the second engaging portion are respectively provided on two adjacent overlapping containers. The locking member and the first engaging portion are respectively located on two containers. When the locking member and the first engaging portion form a lock, the container where the locking member is located and the container where the first engaging portion is located are connected. Similarly, after the limiting member and the second engaging portion form a lock, the two containers connected by the locking structure are further restricted to ensure that two adjacent overlapping containers form a stable and reliable stacked combination. The components in the locking structure are respectively provided on two adjacent overlapping containers, and the components in the auxiliary limiting structure are respectively provided on two adjacent overlapping containers. The locking structure and the auxiliary limiting structure constituted thereby can endow the containers with more extended functions, facilitate the connection and combination of more containers, and can continuously stack and connect more containers as needed like building blocks to form a composite storage device with a larger capacity and finer classification. At the same time, because the locking member and the first engaging portion are located on the joint surfaces of two adjacent overlapping containers, they can be mostly blocked by the containers, having good concealment and ensuring that the stacked containers still maintain a neat appearance.

[0006] Preferably, the locking member is slidably connected to the container, and the sliding direction of the locking member is perpendicular to the first engaging portion. With this design, the switching between the engaged and separated states of the locking member and the first engaging portion can be realized by pressing the locking member, that is, the switching between the locked and unlocked states of the stacked and combined containers, and the operation is relatively convenient.

[0007] Alternatively, the locking member is slidably connected to the container, and the sliding direction of the locking member is parallel to the first engaging portion. With this design, the switching between the engaged and separated states of the locking member and the first engaging portion can be realized by shifting the locking member, that is, the switching between the locked and unlocked states of the stacked and combined containers, and the operation is also relatively convenient.

[0008] Preferably, a locking member slot is provided on the container, the locking member is slidably connected in the locking member slot, a spring is provided between the locking member and the locking member slot, the locking member comprises a bottom frame and a force-bearing body, the inner edge of the bottom frame is provided with a locking member clamping part that can be clamped with the first clamping part, the force-bearing body is fixed on the bottom frame and faces the opening of the locking member slot, and in the locked state after the containers are stacked, the locking member is driven by the spring to move closer to the first clamping part and the locking member clamping part is clamped with the first clamping part. When two containers are stacked and matched, precise alignment is required, so that the first clamping part of one container extends into the bottom frame of another container, at this time, the locking member automatically moves closer to the first clamping part under the drive of the spring, the locking member clamping part is clamped with the first clamping part, the two containers are in a locked state, and a stable stacking connection is formed; when an external force is applied to the force-bearing body at the opening of the locking member slot, the locking member overcomes the spring elastic force and moves in reverse, the locking member clamping part and the first clamping part are separated from each other, and at this time the two containers enter an unlocked state and can be separated.

[0009] Preferably, the locking member is adapted to the width of the locking member slot, and the locking member slides axially along the locking member slot. The locking member slot guides the locking member to ensure that the locking member completely slides axially in the locking member slot, and the locking member and the first clamping portion are docked and separated by pressing the locking member, thereby realizing the state switching between locking and unlocking.

[0010] Alternatively, the width of the locking member is smaller than the width of the locking member slot, and the locking member slides in a direction perpendicular to the axial direction of the locking member slot, and the locking member clamping portion is dislocated and separated from the first clamping portion in the unlocked state. The locking member slot guides the locking member to ensure that the locking member completely slides laterally in the locking member slot, and the locking member and the first clamping portion are docked and separated by sliding the locking member laterally, thereby realizing the state switching between locking and unlocking.

[0011] Preferably, the locking member engaging portion is a convex strip protruding from the inner edge of the bottom frame, and a slot is provided inside the first engaging portion, and the convex strip fits into the slot. After the convex strip is inserted into the slot, the vertical movement between the locking member and the first engaging portion is prevented, that is, the locking of the locking member and the first engaging portion is achieved.

[0012] Preferably, the inner end of the locking member groove is communicated with the inside of the container, an abutting portion is provided inside the container, and a stopper is also provided on the bottom frame. When the containers are stacked and locked, the stopper of the locking member abuts against the abutting portion. After the stopper abuts against the abutting portion, a tangential force is applied to the abutting portion, i.e., a force parallel to the joint surface of the two stacked containers, so that the two stacked containers have a certain connection force in the vertical and tangential directions to prevent the two containers from moving relative to each other.

[0013] Alternatively, the locking member is rotatably connected to the container, and a compression spring is provided between the inner end of the locking member and the container. In the locked state after the containers are stacked, the inner end of the locking member is driven by the compression spring to approach the first engaging portion and engage with the first engaging portion. In this technical solution, the locking member is in the form of a lever mechanism. When no external force is applied, the compression spring drives the locking member to approach the first engaging portion, and the inner end of the locking member engages with the first engaging portion. When an external force is applied to the outer end of the locking member, the inner end of the locking member rotates reversely against the elastic force of the compression spring, and the inner end of the locking member is separated from the first engaging portion to release the buckle. By pressing the end of the locking member, the docking and separation of the locking member and the first engaging portion are completed, thereby realizing the state switching between locking and unlocking.

[0014] Preferably, a groove is provided at the top of the container, and a foot is provided at the bottom of the container. When the containers are stacked on top of each other, the foot of the upper container is located in the groove of the lower container and the foot abuts against the groove wall. The foot abuts against the groove wall, generating an interlocking force between the two containers in the tangential direction and preventing relative displacement of the two containers.

[0015] Preferably, the latching structure and the auxiliary limiting structure are located at opposite ends of the mating surface of the two cooperating containers. The latching structure and the auxiliary limiting structure are arranged oppositely, and the mechanical structure is balanced and reasonable, enabling stable connection of two adjacent overlapping containers.

[0016] The beneficial effects of the present invention are as follows:

[0017] Improve the convenience of using the storage tool. The latching structure in the present invention can endow the container with more extended functions, facilitating the connection and combination of more containers for use. It can be continuously stacked and connected to expand the capacity according to needs, forming a composite storage device with a larger capacity and finer classification. It can also be easily disassembled, easy to carry and move, and adapt to different application scenarios.

[0018] Maintain the simple appearance after multiple containers are combined. Since the locking member and the first engaging portion in the present invention are located on the mating surface of two adjacent overlapping containers, they can be mostly blocked by the containers, having good concealment and ensuring that the stacked containers still maintain a clean appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic top view of the container in the present invention;

[0021] Figure 3 is a schematic bottom view of the container in the present invention;

[0022] Figure 4a is a schematic structural diagram of the locking member in the present invention;

[0023] Figure 4bSchematic diagram of another perspective of the locking member in the present invention;

[0024] Figure 5 Schematic diagram of the structure of the present invention after removing the flip cover and the locking member from the container;

[0025] Figure 6 Schematic diagram of a mating structure of the present invention;

[0026] Figure 7 Cross-sectional view of a mating structure of the present invention;

[0027] Figure 8a Schematic diagram of the bottom structure of the present invention in Embodiment 2;

[0028] Figure 8b Cross-sectional view of the present invention in Embodiment 2;

[0029] Figure 9a Front view of the present invention in Embodiment 3;

[0030] Figure 9b Cross-sectional view of the present invention in Embodiment 3;

[0031] Figure 10 Cross-sectional view of the present invention in Embodiment 4;

[0032] Figure 11 Cross-sectional view of the present invention in Embodiment 5;

[0033] Figure 12 Schematic diagram of the structure of the present invention in Embodiment 5.

[0034] In the figure, 1 - container, 101 - abutting portion, 102 - groove, 103 - foot, 2 - first clamping portion, 3 - locking member, 301 - bottom frame, 302 - force-bearing body, 303 - locking member clamping portion, 304 - stop block, 4 - second clamping portion, 5 - locking member groove, 6 - spring, 7 - compression spring, 8 - limiting member. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the specific embodiments with reference to the accompanying drawings.

[0036] Embodiment 1:

[0037] As Figures 1 to 7As shown in the figure, an assembled stacking structure includes three stackable containers 1. The three containers are large, medium, and small in size respectively, with three different dimensions. The length of the medium-sized container is equal to the width of the large-sized container, and the length of the small-sized container is equal to the width of the medium-sized container. The container 1 is a blow-molded tool box, which has a box body and a flip cover. Each container 1 is provided with a first clamping portion 2 and a locking member 3. The first clamping portion 2 is located at the top of the container 1, that is, the top of the flip cover, and the locking member 3 is located at the bottom of the container 1, that is, the bottom of the box body. The three stacked containers 1 are connected to each other through a locking structure and an auxiliary limiting structure between every two adjacent containers. The locking structure and the auxiliary limiting structure are located at opposite ends of the joint surface of the two mating containers 1. The locking structure and the auxiliary limiting structure keep the stacked containers 1 relatively fixed in the tangential and normal directions of the joint surface between the containers 1. The locking member 3 and the first clamping portion 2 constituting the locking structure are located on the joint surface of two adjacent overlapping containers, and are respectively arranged on two adjacent overlapping containers 1. In this embodiment, the locking structure is composed of the locking member 3 on the upper container 1 and the first clamping portion 2 on the lower container 1, and the first clamping portion 2 can form a lock with the locking member 3. A locking member groove 5 is provided on the container 1. The locking member groove 5 is integrally provided on the box body, and the opening of the locking member groove 5 is located on the front surface of the box body. The locking member 3 is slidably connected in the locking member groove 5. A spring 6 is provided between the locking member 3 and the locking member groove 5. The locking member 3 includes a bottom frame 301 and a force-receiving body 302. The inner edge of the bottom frame 301 is provided with a locking member clamping portion 303 that can be clamped and matched with the first clamping portion 2. The force-receiving body 302 is fixed at the front end of the bottom frame 301 and faces the opening of the locking member groove 5. One end of the spring 6 abuts against the step surface inside the locking member groove 5, and the other end abuts against the back surface of the force-receiving body 302. In the locked state after the containers are stacked, the locking member 3 is driven by the spring 6 to approach the first clamping portion 2, and the locking member clamping portion 303 is clamped with the first clamping portion 2. The locking member clamping portion 303 is a convex strip protruding from the inner edge of the bottom frame 301, and the convex strip extends from the back surface of the container 1 to the front surface. The first clamping portion 2 is a convex rib integrally formed with the top of the container 1. A slot is provided inside the first clamping portion 2, and the convex strip is adapted to the slot. The locking member 3 is adapted to the width of the locking member groove 5. The locking member 3 slides along the axial direction of the locking member groove 5, and the sliding direction of the locking member 3 is perpendicular to the first clamping portion 2. The locking member groove 5 extends into the interior of the container, and its inner end is communicated with the interior of the container 1. An abutting portion 101 in the shape of a tongue is provided inside the container 1. The abutting portion 101 is integrally formed with the container. A stop block 304 is further provided at the rear end of the bottom frame 301. In the locked state after the containers are stacked, the stop block 304 of the locking member 3 abuts against the abutting portion 101. The auxiliary limiting structure includes a limiting member 8 and a second clamping portion 4 that can form a clamp with the limiting member 8. The limiting member 8 and the second clamping portion 4 are respectively arranged on two adjacent overlapping containers 1. In this embodiment, the auxiliary limiting structure is composed of the limiting member 8 on the upper container 1 and the second clamping portion 4 on the lower container 1. The second clamping portion 4 is a clamping opening provided on the groove wall of the groove 102, and the limiting member 8 is an L-shaped convex strip, and the L-shaped convex strip can be inserted into the clamping opening to form an engagement.

[0038] When two containers 1 are stacked and fitted together, first, they are accurately aligned so that the first clamping portion 2 of the lower container 1 extends into the bottom frame 301 of the upper container 1. At this time, the locking member 3 automatically approaches the first clamping portion 2 under the drive of the spring 6, and the clamping portion 303 of the locking member is inserted into the slot of the first clamping portion 2, thereby forming a clamping connection with the first clamping portion 2, enabling the two containers 1 to enter the locked state and forming a stable stacked connection; more containers can be stacked one by one according to this method. When a force is applied to the force-bearing body 302 at the opening of the locking member groove 5, the locking member 3 moves reversely against the elastic force of the spring 6, and the clamping portion 303 of the locking member and the first clamping portion 2 are disengaged from each other. At this time, the two containers 1 enter the unlocked state and can be separated.

[0039] Embodiment 2:

[0040] As Figure 8a 、 Figure 8b shown, there are two containers 1, both of which are large-sized containers. A groove 102 is provided at the top of the container 1, and a bottom foot 103 is provided at each of the four corners of the bottom of the container 1. The bottom foot 103 is integrally formed with the box body of the container 1. When the containers 1 are stacked on each other, the bottom feet 103 of the upper container 1 are located in the grooves 102 of the lower container 1, and each bottom foot 103 abuts against the groove wall of a corresponding groove 102. The groove 102 is rectangular. One groove 102 is provided at the top of the small-sized container, two grooves 102 are provided at the top of the medium-sized container, and four grooves 102 are provided at the top of the large-sized container. A first clamping portion 2 is provided in each groove 102. The rest is the same as in Embodiment 1.

[0041] When two containers 1 are stacked and fitted together, under the action of the locking structure, the two stacked containers 1 have a certain connection force in the vertical direction with respect to each other, and at the same time, they also have a certain connection force in the one-way tangential direction from the front to the back of the container 1. At the same time, the bottom feet 103 abut against the groove walls of the grooves 102, generating an interlocking force between the two containers 1 in the tangential direction to prevent the two containers 1 from having a relative positional displacement. Under the combined action of the locking structure, the auxiliary limiting structure, and the cooperation structure of the bottom feet 103 and the grooves 102, the two stacked containers 1 achieve a stable connection.

[0042] Embodiment 3:

[0043] As Figure 9a 、 Figure 9b shown, the width of the locking member 3 is smaller than the width of the locking member groove 5. One end of the spring 6 abuts against the right side wall of the locking member groove 5, and the other end of the spring 6 abuts against the right side wall of the bottom frame 301. The length of the slot inside the first clamping portion 2 is only half of the length of the first clamping portion 2 and is offset to the left half of the first clamping portion 2. The locking member 3 slides in the direction perpendicular to the axial direction of the locking member groove 5, and the sliding direction of the locking member 3 is parallel to the first clamping portion 2. In the unlocked state, the clamping portion 303 of the locking member is misaligned and separated from the first clamping portion 2. The rest is the same as in Embodiment 2.

[0044] When the two containers 1 are stacked and fitted, the first clamping portion 2 of the lower container 1 extends into the bottom frame 301 of the upper container 1. At this time, the locking member 3 automatically moves closer to the first clamping portion 2 under the drive of the spring 6, and the clamping portion 303 of the locking member is inserted into the slot of the first clamping portion 2, thereby forming a clamping connection with the first clamping portion 2, enabling the two containers 1 to enter the locked state and forming a stable stacked connection; when the force-receiving body 302 at the opening of the locking member groove 5 is pushed forcefully to the right, the locking member 3 slides reversely against the elastic force of the spring 6, and the clamping portion 303 of the locking member and the first clamping portion 2 are disengaged from each other. At this time, the two containers 1 enter the unlocked state and can be separated.

[0045] Example 4:

[0046] The clamping portion 303 of the locking member is a rib protruding from the inner edge of the bottom frame 301, and the rib extends from the front surface to the back surface of the container 1. A slot is provided on the outer side of the first clamping portion 2. The spring 6 is a tension spring. The rest is the same as in Example 1.

[0047] As Figure 10 shown, when the two containers 1 are stacked and fitted, the first clamping portion 2 of the lower container 1 extends into the bottom frame 301 of the upper container 1. At this time, the locking member 3 automatically moves closer to the first clamping portion 2 under the drive of the spring 6, and the clamping portion 303 of the locking member is inserted into the slot of the first clamping portion 2, thereby forming a clamping connection with the first clamping portion 2, enabling the two containers 1 to enter the locked state and forming a stable stacked connection; when the force-receiving body 302 at the opening of the locking member groove 5 is pulled forcefully outwards, the locking member 3 moves reversely against the elastic force of the spring 6, and the clamping portion 303 of the locking member and the first clamping portion 2 are disengaged from each other. At this time, the two containers 1 enter the unlocked state and can be separated.

[0048] Example 5:

[0049] As Figure 11 shown, the locking member 3 is rotatably connected to the container 1 through a rotating shaft, forming a lever mechanism. The rotating shaft is located in the middle of the locking member 3, and the inner and outer ends of the locking member 3 form the two ends of the lever mechanism. A compression spring 7 is provided between the inner end of the locking member 3 and the container 1. The inner end of the locking member 3 is provided with a clamping portion 303 of the locking member, and the clamping portion 303 of the locking member has a hook-like structure. A clamping groove adapted to the clamping portion 303 of the locking member is provided on the inner side of the first clamping portion 2. In the locked state after the containers are stacked, the inner end of the locking member 3 is driven by the compression spring 7 to move closer to the first clamping portion 2, and the clamping portion 303 of the locking member is clamped with the first clamping portion 2. The rest is the same as in Example 2.

[0050] When two containers 1 are stacked and fitted together, first press the outer end of the locking member 3 to make the inner end of the locking member 3 tilt upwards. Then, through the alignment and fitting of the bottom feet 103 and the grooves 102, the two containers 1 are accurately aligned. Release the outer end of the locking member 3, and the compression spring 7 drives the locking member 3 to move closer to the first engaging portion 2. The engaging portion 303 of the locking member is engaged with the first engaging portion 2, so that the two containers 1 enter the locked state and form a stable stacked connection. When the outer end of the locking member 3 is pressed again, the inner end of the locking member 3 rotates reversely against the elastic force of the compression spring 7, and the engaging portion 303 of the locking member is disengaged from the first engaging portion 2. By pressing the outer end of the locking member, the docking and separation of the locking member 3 and the first engaging portion 2 are completed, thereby realizing the state switching between locking and unlocking.

[0051] Embodiment 6:

[0052] As Figure 12 shown, there are two containers 1, including a medium-sized container and a small-sized container. The rest is the same as in Embodiment 1.

[0053] Embodiment 7:

[0054] The first engaging portion 2 is located at the bottom of the container 1, that is, the bottom of the box body, and the locking member 3 is located at the top of the container 1, that is, the top of the flip cover. The latching structure includes the first engaging portion 2 on the upper container 1 and the locking member 3 on the lower container 1. The rest is the same as in Embodiment 1.

Claims

1. An assembled stacking structure, comprising a plurality of stackable containers, characterized in that The stacked containers are connected through a locking structure and an auxiliary limiting structure. The locking structure and the auxiliary limiting structure are used to relatively fix the stacked containers in the tangential and normal directions of the joint surface between the containers. The locking structure includes a locking member driven by an elastic member and a first engaging portion that can form a lock with the locking member. The locking member and the first engaging portion are located on the joint surface of two adjacent overlapping containers and are respectively provided on two adjacent overlapping containers; the locking member is slidably connected to the container; or, the locking member is rotatably connected to the container; in the locked state after the containers are stacked, the locking member is driven by the elastic member to approach the first engaging portion and is engaged with the first engaging portion. A locking member groove is provided on the container, and the locking member is slidably connected in the locking member groove. The locking member includes a bottom frame and a force-receiving body. The inner edge of the bottom frame is provided with a locking member engaging portion that can be engaged with the first engaging portion. The force-receiving body is fixed to the front end of the bottom frame and faces the opening of the locking member groove.

2. The assembled stacked structure according to claim 1, wherein , The auxiliary limiting structure includes a limiting member and a second engaging portion that can form a lock with the limiting member. The limiting member and the second engaging portion are respectively provided on two adjacent overlapping containers.

3. The assembled stacked structure according to claim 2, characterized in that, The sliding direction of the locking member is perpendicular to the first engaging portion.

4. The assembled stacked structure according to claim 2, wherein, The sliding direction of the locking member is parallel to the first engaging portion.

5. The assembled stacked structure according to claim 2 or 3 or 4, characterized in that, The elastic member is a spring, and the spring is provided between the locking member and the locking member groove.

6. The assembled stacked structure according to claim 5, wherein The locking member is adapted to the width of the locking member groove, and the locking member slides along the axial direction of the locking member groove.

7. The assembled stacked structure according to claim 5, wherein The width of the locking member is smaller than the width of the locking member groove, and the locking member slides in a direction perpendicular to the axial direction of the locking member groove. In the unlocked state, the locking member engaging portion and the first engaging portion are misaligned and separated.

8. The assembled stacked structure according to claim 5, characterized in that The locking member engaging portion is a rib protruding from the inner edge of the bottom frame, and a slot is provided on the inner side of the first engaging portion. The rib is adapted to the slot.

9. The assembled stacked structure according to claim 5, wherein The inner end of the locking member groove communicates with the inside of the container. An abutting portion is provided inside the container, and a stop block is further provided on the bottom frame. In the locked state after the containers are stacked, the stop block of the locking member abuts against the abutting portion.

10. The assembled stacked structure according to claim 2, wherein The elastic member is a compression spring, and the compression spring is provided between the inner end of the locking member and the container. In the locked state after the containers are stacked, the inner end of the locking member is driven by the compression spring to approach the first engaging portion and is engaged with the first engaging portion.

11. The assembled stacked structure according to claim 1 or 2 or 3 or 4 or 10, characterized in that A groove is provided at the top of the container, and a bottom foot is provided at the bottom of the container. When the containers are stacked on each other, the bottom foot of the upper container is located in the groove of the lower container and the bottom foot abuts against the groove wall.

12. The assembled stacked structure according to claim 1 or 2 or 3 or 4 or 10, characterized in that The locking structure and the auxiliary limiting structure are respectively located at opposite ends of the joint surface of two mating containers.

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