Stacking system

Abstract

The application relates to a stacking system, comprising a first stacking device and a second stacking device arranged in a stack, the first stacking device being provided with a first cooperating structure, and the second stacking device being provided with a second cooperating structure; the first cooperating structure and the second cooperating structure have a locked state and an unlocked state; in the locked state, the first cooperating structure and the second cooperating structure are locked to connect the first stacking device and the second stacking device; in the unlocked state, the first cooperating structure and the second cooperating structure can be unlocked.

Description

Technical Field

[0001] This application relates to the field of stacking technology, and in particular to a stacking system. Background Technology

[0002] Stacking is a good way to reduce space usage; however, simple stacks are prone to falling apart, posing a high safety risk and hindering stable transportation. Therefore, a stacking method is needed that can both lock the stack and allow for easy unlocking and retrieval. Summary of the Invention

[0003] Therefore, it is necessary to provide a stacking system.

[0004] A stacking system includes a first stacking device and a second stacking device stacked together. The first stacking device is provided with a first mating structure, and the second stacking device is provided with a second mating structure. The first mating structure and the second mating structure have a locked state and an unlocked state. In the locked state, the first mating structure and the second mating structure are locked to connect the first stacking device and the second stacking device. In the unlocked state, the first mating structure and the second mating structure can be unlocked.

[0005] In some embodiments, an elastic mechanism is further provided between the first mating structure and the first stacking device, the elastic mechanism acting elastically on the first mating structure to provide a force in the direction in which the first mating structure and the second mating structure remain locked.

[0006] Wherein, the first mating structure can engage with the second stacking device after being unlocked from the second mating structure, overcoming the force provided by the elastic mechanism, so that the first mating structure and the second mating structure remain in the unlocked state.

[0007] In some embodiments, the first mating structure includes a first movable member movably connected to the first stacking device. The first movable member is movable on the first stacking device under the pressure of the second stacking device and is able to approach and lock onto the second mating structure under the elastic action of the elastic mechanism to form the locked state.

[0008] In some embodiments, the first movable member is slidably or rotatably connected to the first stacking device.

[0009] In some embodiments, the first movable member rotates about one of the axes in the X-axis, Y-axis, or Z-axis direction.

[0010] In some embodiments, the first movable member includes a base and a first part disposed on the base, the base being movably connected to the first stacking device, and the first part being provided with a first guide surface; the second mating structure includes a second part connected to the second stacking device.

[0011] When the second stacking device is stacked onto the first stacking device, the second part presses against the first guide surface of the first part, causing the base to drive the first part to move away from the second part;

[0012] When the second stacking device is stacked in place, the base, under the elastic action of the elastic mechanism, drives the first part to approach and engage with the second part, forming the locked state.

[0013] In some embodiments, the top of the first stacking device is provided with a movable slot for mounting the first movable member. The movable slot has a first slot and a second slot that are interconnected. The first slot is located on the side wall of the first stacking device, and the second slot is located on the top wall of the first stacking device. The first movable member is capable of moving toward the first slot.

[0014] In some embodiments, the elastic mechanism includes a first elastic element that abuts against the first movable element and the first stacking device to apply force to the first movable element.

[0015] In some embodiments, the first mating structure is provided with a limiting member, and the second stacking device is provided with a limiting mating member; under the action of an external force, the first mating structure can be unlocked from the second mating structure to form an unlocked state; after the external force is removed, the limiting member on the first mating structure can cooperate with the limiting mating member on the second stacking device to overcome the force provided by the elastic mechanism, so that the first mating structure and the second mating structure remain in the unlocked state.

[0016] In some embodiments, along the direction from the edge of the second stacking device to the center of the second stacking device, the two opposite sides of the limiting mating member are defined sequentially as the non-limiting side and the limiting side; during the process of the first mating structure and the second mating structure forming the locking state under the pressure of the second stacking device, the limiting member is always located on the limiting side of the limiting mating member.

[0017] In some embodiments, the limiting member and the first movable member are an integral structure or a separate structure; and / or, the second stacking device includes a body portion, which is stacked with the first stacking device; the limiting mating member and the body portion are an integral structure or a separate structure.

[0018] In some embodiments, the limiting fitting is configured as a protrusion extending beyond the bottom plane of the body portion, or the limiting fitting is configured as a sidewall of the body portion.

[0019] In some embodiments, at least partially deformable is one of the limiting member and the limiting mating member.

[0020] In some embodiments, one of the limiting member and the limiting mating member includes a third limiting portion, and the other includes a connecting body and a fourth limiting portion disposed on the connecting body. The third limiting portion and the connecting body are respectively connected to the first movable member and the main body. The connecting body is a deformable member to allow the third limiting portion and the fourth limiting portion to cooperate, overcome the force provided by the elastic mechanism, and keep the first mating structure and the second mating structure in the unlocked state.

[0021] In some embodiments, the connecting body has a hollowed-out portion; and / or, one end portion of the connecting body is connected to the first movable member or the main body portion.

[0022] In some embodiments, the cutout portion penetrates the connecting body along the axial or radial direction; and / or, the fourth limiting portion is disposed on the circumferential wall of the connecting body or the end wall of the connecting body.

[0023] In some embodiments, two third limiting portions are provided at intervals; a fourth limiting portion is provided on each of the opposite sides of the circumferential wall of the connecting body;

[0024] The two third limiting parts can cooperate with the two fourth limiting parts from both sides of the connecting body to overcome the force provided by the elastic mechanism, so that the first cooperating structure and the second cooperating structure remain in the unlocked state.

[0025] In some embodiments, the limiting member has a third guide surface on the side near the center of the first stacking device; and / or, the limiting mating member has a fourth guide surface on the side away from the center of the second stacking device.

[0026] In some embodiments, one of the limiting member and the limiting mating member includes a first limiting body, and the other includes a first mounting base, a second elastic member, and a second limiting body;

[0027] The first limiting body and the first mounting base are respectively connected to the first movable member and the main body; the first mounting base has a mounting groove, one end of which passes through the first mounting base to form a first hole; the second elastic member is accommodated in the mounting groove, with one end abutting against the groove wall opposite to the first hole, and the other end disposed between the second limiting body and the first hole; the second limiting body can at least partially protrude from the first hole under the elastic action of the second elastic member to cooperate with the first limiting body, overcome the force provided by the elastic mechanism, and keep the first and second cooperating structures in the unlocked state; or...

[0028] One of the limiting member and the limiting mating member includes two first limiting bodies spaced apart, and the other includes a first mounting base, a second elastic member, and two second limiting bodies;

[0029] The first limiting body and the first mounting base are respectively connected to the first movable member and the main body; the first mounting base is provided with a mounting groove, which passes through the opposite ends of the first mounting base to form a first hole and a second hole. The second elastic member is accommodated in the mounting groove. One of the two second limiting bodies is located between the second elastic member and the first hole, and the other is located between the second elastic member and the second hole. The two second limiting bodies can protrude at least partially from the first hole and the second hole under the elastic action of the second elastic member. Each second limiting body can cooperate with one of the first limiting bodies to overcome the force provided by the elastic mechanism, so that the first cooperating structure and the second cooperating structure remain in the unlocked state.

[0030] In some embodiments, the first limiting body is provided with a fifth guide surface; and / or, the second limiting body is provided with a sixth guide surface.

[0031] Compared with related technologies, the stacking system provided in this application can connect the first stacking device and the second stacking device through the locking fit between the first mating structure and the second mating structure, so that the first stacking device and the second stacking device can be stacked stably, which is convenient for storage and transportation. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1A schematic diagram of the stacking system provided in one embodiment of this application;

[0034] Figure 2 for Figure 1 A partial structural schematic diagram of the first stacking device in the middle;

[0035] Figure 3 for Figure 1 A partial structural schematic diagram of the second stacking device;

[0036] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0037] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0038] Figure 6 for Figure 1 A schematic diagram of the middle part of the stacked system;

[0039] Figure 7 for Figure 1 A schematic diagram of the mid-section stacked system from another perspective;

[0040] Figure 8 For Figure 1 A schematic cross-sectional view of the stacked system at point AA;

[0041] Figure 9 for Figure 8 Enlarged structural diagram at point C;

[0042] Figure 10 for Figure 1 A partial structural diagram of the stacked system;

[0043] Figure 11 for Figure 1 A partial structural diagram of the stacked system;

[0044] Figure 12 for Figure 11 A schematic diagram of the cross-sectional structure of the stacked system at BB;

[0045] Figure 13 for Figure 12 Enlarged structural diagram at point D;

[0046] Figure 14 for Figure 12 Enlarged structural diagram at point E;

[0047] Figure 15 This is a partial structural diagram of a stacking system in one embodiment of this application;

[0048] Figure 16 for Figure 15 A partial structural diagram of the stacked system;

[0049] Figure 17 middle Figure 16 A schematic cross-sectional view of the stacked system at point CC;

[0050] Figure 18 for Figure 17 Enlarged structural diagram at point F;

[0051] Figure 19 This is a partial structural diagram of a stacking system in one embodiment of this application;

[0052] Figure 19A for Figure 19 Enlarged structural diagram of the middle P section;

[0053] Figure 20 for Figure 19 A partial structural schematic diagram of the second stacking device;

[0054] Figure 21 middle Figure 19 A cross-sectional structural diagram of the stacked system;

[0055] Figure 22 for Figure 21 Enlarged structural diagram at point H;

[0056] Figure 23 This is a partial structural diagram of a stacking system in one embodiment of this application;

[0057] Figure 24 for Figure 23 A schematic diagram of the structure of the first movable component and the first locking part;

[0058] Figure 25 for Figure 23 A partial structural diagram of the stacked system;

[0059] Figure 26 middle Figure 25 A schematic cross-sectional view of the stacked system at DD;

[0060] Figure 27 for Figure 26 A magnified structural diagram at point G in the middle;

[0061] Figure 28 This is a partial cross-sectional view of a stacking system in one embodiment of this application;

[0062] Figure 29 This is a partial cross-sectional view of a stacking system in one embodiment of this application;

[0063] Figure 30This is a partial cross-sectional view of a stacking system in one embodiment of this application;

[0064] Figure 31 This is a partial cross-sectional view of a stacking system in one embodiment of this application;

[0065] Figure 32 This is a schematic diagram of the structure of the first stacking device in one embodiment of this application;

[0066] Figure 33 This is a schematic diagram of the structure of the second stacking device in one embodiment of this application;

[0067] Figure 34 This is a schematic diagram of the stacking system in one embodiment of this application;

[0068] Figure 35 for Figure 34 Enlarged structural diagram at point I;

[0069] Figure 36 This is a schematic diagram of the stacking system in one embodiment of this application;

[0070] Figure 37 This is a schematic diagram of the structure of a first stacking device or a second stacking device in one embodiment of this application;

[0071] Figure 38 This is a partial structural schematic diagram of a first stacking device or a second stacking device in one embodiment of this application;

[0072] Figure 39 This is a partial structural schematic diagram of a first stacking device or a second stacking device in one embodiment of this application;

[0073] Figure 40 This is a schematic diagram of the structure of a first stacking device or a second stacking device in one embodiment of this application;

[0074] Figure 41 This is a partial structural diagram of a stacking system in one embodiment of this application;

[0075] Figure 42 for Figure 41 Enlarged structural diagram at point J;

[0076] Figure 43 This is a cross-sectional schematic diagram of a portion of the structure of the stacking system in one embodiment of this application;

[0077] Figure 44 for Figure 43 Enlarged structural diagram at point K;

[0078] Figure 45 This is a cross-sectional schematic diagram of a portion of the structure of the stacking system in one embodiment of this application;

[0079] Figure 46 This is a schematic diagram showing the connection between a portion of the stacking system structure and the external structure in one embodiment of this application;

[0080] Figure 47 This is a schematic diagram showing the connection between a part of the stacking system structure and the external structure in one embodiment of this application.

[0081] Figure label:

[0082] 100. Stacking system; 10. First stacking device; 11. Movable slot; 111. First slot opening; 112. Second slot opening; 113. First side wall; 114. Second side wall; 1141. First limiting part; 115. Bottom wall; 12. Clearance slot; 13. Limiting groove; 14. Side wall; 15. Top wall; 20. Second stacking device; 21. Limiting protrusion; 22. Main body; 221. Main body side wall; 30. First mating structure; 31. 311. First movable component; 311. Base; 3111. Second limiting part; 312. First part; 3121. First guide surface; 313. Auxiliary part; 314. Slide groove; 32. Elastic mechanism; 321. First elastic element; 33. First rotating shaft; 34. Second rotating shaft; 40. Second mating structure; 41. Second part; 411. Second guide surface; 412. Slot; 50. Limiting element; 60. Limiting mating element; 61. Limiting side; 62. Non- Limiting side; 101, Third limiting part; 1011, Third guide surface; 102, Connecting body; 1021, Hollowed-out part; 1022, Cutting area; 103, Fourth limiting part; 1031, Fourth guide surface; 104, First limiting body; 1041, Fifth guide surface; 105, First mounting base; 1051, Mounting groove; 1052, First hole; 1053, Second hole; 106, Second elastic element; 107, Second limiting body; 10 71. Sixth guide surface; 1072. First connecting block; 1073. Second connecting block; 1074. Connecting groove; 70. Third mating structure; 80. Fourth mating structure; 91. Second mounting base; 92. Base support; 93. Flexible bag section; 94. Workbench; 941. Working surface; 95. Storage box; 951. Opening; 96. Cover; 97. Fastener; 98. Hook; 200. External structure; 210. Ceiling; 220. Beam frame. Detailed Implementation

[0083] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0084] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0087] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0089] Stacking is a good way to reduce space usage; however, simple stacks are prone to falling apart, posing a high safety risk and hindering stable transportation. Therefore, a stacking method is needed that can both lock the stack and allow for easy unlocking and retrieval.

[0090] It should be noted that in the following embodiments, the X direction, Y direction and Z direction correspond to the three three-dimensional directions of the stacking system 100, and the axes of the X axis, Y axis and Z axis correspond to the X direction, Y direction and Z direction, respectively; however, the X direction, Y direction and Z direction in this application are not limited to the manifestations in the embodiments.

[0091] Therefore, it is necessary to provide a stacking system 100 that can be used in storage, placement, transportation and other fields.

[0092] See Figures 1 to 45 The stacking system 100 provided in this application includes a first stacking device 10 and a second stacking device 20 stacked together. The first stacking device 10 is provided with a first mating structure 30, and the second stacking device 20 is provided with a second mating structure 40. The first mating structure 30 and the second mating structure 40 have a locked state and an unlocked state. In the locked state, the first mating structure 30 and the second mating structure 40 are locked to connect the first stacking device 10 and the second stacking device 20. In the unlocked state, the first mating structure 30 and the second mating structure 40 can be unlocked.

[0093] Compared with related technologies, the stacking system 100 provided in this application can connect the first stacking device 10 and the second stacking device 20 through the locking fit between the first mating structure 30 and the second mating structure 40, so that the first stacking device 10 and the second stacking device 20 can be stably stacked and connected, which is convenient for storage and transportation.

[0094] Furthermore, in the case of single-person operation, since continuous force is required to keep the first mating structure 30 and the second mating structure 40 in the unlocked state, it is inconvenient for a single person to move and separate the first stacking device 10 and the second stacking device 20.

[0095] See Figures 1 to 14In view of this, the stacking system 100 provided in this application is further provided with an elastic mechanism 32 between the first mating structure 30 and the first stacking device 10. The elastic mechanism 32 elastically acts on the first mating structure 30 to provide a force in the direction that keeps the first mating structure 30 and the second mating structure 40 in a locked state.

[0096] The first mating structure 30 can engage with the second stacking device 20 after the second mating structure 40 is unlocked, overcoming the force provided by the elastic mechanism 32 and keeping the first mating structure 30 and the second mating structure 40 in the unlocked state.

[0097] Thus, the locking engagement between the first mating structure 30 and the second mating structure 40 can connect the first stacking device 10 and the second stacking device 20, enabling the first stacking device 10 and the second stacking device 20 to be stacked stably, facilitating storage and transportation. After the first mating structure 30 and the second mating structure 40 are unlocked, they can still engage with the second stacking device 20 to overcome the force provided by the elastic mechanism 32. After unlocking, without further external intervention, the first mating structure 30 and the second mating structure 40 can remain in the unlocked state. In the case of single-person operation, the locked and unlocked states can be easily switched, and the first stacking device 10 and the second stacking device 20 can be easily moved and separated.

[0098] For example, see Figures 1 to 14 In the first embodiment provided in this application, the example is a first stacking device 10 at the bottom and a second stacking device 20 at the top, with both the first stacking device 10 and the second stacking device 20 being storage boxes.

[0099] In this embodiment, the storage box is a cuboid, and both are the same size. It is understood that in other embodiments, the specific purpose, shape, and size of the first stacking device 10 and the second stacking device 20 are not limited.

[0100] It is further understood that, in other embodiments, the vertical positions of the first stacking device 10 and the second stacking device 20 can be set as needed. In other words, in other embodiments, the first stacking device 10 can also be stacked on top of the second stacking device 20.

[0101] For example, in this embodiment, the X, Y, and Z directions correspond to the length, width, and height directions of the storage box, respectively. It should be noted that in this embodiment, the height direction is also the direction of the stacking extension between the first stacking device 10 and the second stacking device 20. It can be understood that when the storage box is shaped like a polygonal prism or cylinder, the X, Y, and Z directions can be determined according to specific circumstances.

[0102] Furthermore, it can be understood that within the same stacking system 100, given a fixed X, Y, and Z coordinate system, the correspondence between the length, width, and height directions of different stacked components and the X, Y, and Z directions is related to the length, width, height, and placement orientation of the stacked component, and needs to be determined according to specific circumstances. For example, in the same X, Y, and Z coordinate system, the length, width, and height directions of the first stacking device 10 can correspond to the X, Y, and Z directions, respectively, while the length, width, and height directions of the second stacking device 20 can correspond to the Y, X, and Z directions, respectively.

[0103] See Figures 1 to 3 For example, in this embodiment, the first mating structure 30 includes a first movable member 31, which is movably connected to the first stacking device 10. The first movable member 31 can move on the first stacking device 10 under the pressure of the second stacking device 20, and can approach and lock onto the second mating structure 40 under the elastic action of the elastic mechanism 32 to form a locked state.

[0104] With this configuration, during the stacking process, the second stacking device 20 only needs to be directly placed on the first stacking device 10. The pressure generated by the weight of the second stacking device 20 (including its own weight and the weight of the contents inside) will automatically form a locking state, reducing the complexity of the locking operation and effectively improving work efficiency and the convenience of stacking positioning. In other words, in this embodiment, the first mating structure 30 and the second mating structure 40 can achieve gravity self-locking through the weight of the first stacking device 10 and the second stacking device 20, ensuring stable stacking and locking of the first stacking device 10 and the second stacking device 20 without the need for additional force, effectively reducing or avoiding the risk of separation during transportation.

[0105] Of course, it is understood that in other embodiments, additional pressure may be applied to the second stacking device 20 on top of its own weight to form a locked state, which will not be elaborated here.

[0106] See Figure 1 and Figure 2 Furthermore, in the first embodiment of this application, the first movable member 31 is slidably connected to the first stacking device 10. The slidable connection is convenient and relatively stable. It is understood that in other embodiments, the first movable member 31 may also be rotatably connected to the first stacking device 10. The first movable member 31 can rotate about one of the axes in the X-axis, Y-axis, or Z-axis direction.

[0107] Optionally, the sliding direction of the first movable member 31 is consistent with the X or Y direction. In other words, the first movable member 31 can slide outward along the X or Y direction of the first stacking device 10. It should be emphasized that, in this embodiment, the X direction refers to the length direction of the first stacking device 10, the Y direction refers to the width direction of the first stacking device 10, and the Z direction refers to the height direction of the first stacking device 10.

[0108] See Figures 2 to 10 In this embodiment, the first movable member 31 is slidably connected to the first stacking device 10 along the X direction. That is, the first movable member 31 can move along the X direction of the first stacking device 10.

[0109] In this embodiment, the elastic mechanism 32 includes a first elastic member 321, which abuts against the first movable member 31 and the first stacking device 10 respectively to apply force to the first movable member 31.

[0110] For example, in this embodiment, the first elastic element 321 is configured as a tension spring. It is understood that in other embodiments, the first elastic element 321 may also be a group of opposing magnets, with one magnet disposed on the first movable element 31 and the other magnet disposed on the first stacking device 10. Thus, the opposing group of magnets can form a certain repulsive force, providing a force that locks the first movable element 31 into engagement with the second mating structure 40.

[0111] See Figures 1 to 7 Furthermore, in this embodiment, the first movable member 31 includes a base 311 and a first part 312 disposed on the base 311. The base 311 is slidably connected to the first stacking device 10. The second mating structure 40 includes a second part 41 disposed on the second stacking device 20. In the locked state, the first part 312 can be locked with the second part 41 under the action of the first elastic member 321, so as to at least restrict the second stacking device 20 from disengaging from the first stacking device 10 in the Z direction.

[0112] It is understood that the specific structure of the first part 312 and the second part 41 can be modified as needed to simultaneously limit the movement of the second stacking device 20 relative to the first stacking device 10 in the X and / or Y directions. Alternatively, other connection structures can be added to further restrict the movement of the second stacking device 20 in other directions, so that the first stacking device 10 and the second stacking device 20 cannot be displaced relative to each other in the X, Y, and Z directions.

[0113] In this embodiment, the first part 312 protrudes from the base 311, and the second part 41 protrudes from the bottom of the second stacking device 20. It should be understood that "protruding" is relative and does not mean protruding from the entire surface of the base 311 or the bottom of the second stacking device 20. The meaning of "protruding" will not be elaborated further below; it is sufficient to achieve the desired function.

[0114] Optionally, in this embodiment, the second part 41 may or may not protrude from the bottom of the second stacking device 20, as long as the overall structure of the bottom of the second stacking device 20 does not affect the automatic gravity locking of the second stacking device 20 when stacked on the first stacking device 10. For example, in this embodiment, the bottom of the second stacking device 20 may be provided with a concave area (not labeled), and the second part 41 protrudes from the concave area but does not protrude from other parts of the bottom of the second stacking device 20.

[0115] See Figures 1 to 7 In this embodiment, the first part 312 and the second part 41 are locked together by a snap-fit ​​mechanism. Furthermore, in order to facilitate the snap-fit ​​engagement between the first part 312 and the second part 41, one of the first part 312 and the second part 41 may have a pin, while the other has a slot 412, that is, the first part 312 and the second part 41 are plugged into each other.

[0116] Furthermore, it can be understood that multiple slots 412 may be provided, or slots 412 may have one or more slots, to selectively limit the movement direction of the second stacking device 20 as needed. In other words, different numbers or different shapes of slots 412, in conjunction with pins, can correspondingly limit the movement of the second stacking device 20 in one or more directions.

[0117] For example, in this embodiment, the second part 41 has a slot 412; in the locked state, the first part 312 can be inserted into the slot 412 under the action of the first elastic member 321.

[0118] See Figure 4 Furthermore, in this embodiment, the slot 412 is a concave groove, that is, the slot 412 has only one opening. In this way, the side walls around the slot 412 can all play a limiting role. The upper and lower side walls of the slot 412 can limit the movement of the second stacking device 20 in the Z direction, and the left and right side walls of the slot 412 can limit the movement of the second stacking device 20 in the Y direction. The side wall of the slot 412 opposite to the opening can limit the movement of the second stacking device 20 in the X direction away from the opening.

[0119] It is understood that in other embodiments, the slot 412 may also have only upper and lower sidewalls, thus selectively restricting only the movement of the second stacking device 20 in the Z direction. Correspondingly, the movement of the second stacking device 20 in the X and Y directions can be restricted by other connecting structures.

[0120] See Figures 1 to 10 In this embodiment, the first stacking device 10 has a movable slot 11 for installing the first movable member 31. The movable slot 11 has a first slot 111 and a second slot 112 that are interconnected. The first slot 111 is opened on the side wall 14 of the first stacking device 10, and the second slot 112 is opened on the top wall 15 of the first stacking device 10. The first movable member 31 can move in the direction of the first slot 111.

[0121] It should be noted that the sidewall opposite to the first slot 111 of the movable groove 11 is the first sidewall 113, the two sidewalls opposite to the movable groove 11 are both second sidewalls 114, and the bottom wall 115 opposite to the second slot 112 is the bottom wall 115. It can be understood that in this embodiment, the first elastic member 321 is oriented towards the first sidewall 113; in other words, the orientation of the first elastic member 321 is the same as the sliding direction of the first movable member 31.

[0122] See Figures 1 to 3 To enhance the connection stability of the first stacking device 10 and the second stacking device 20, in this embodiment, the first stacking device 10 is further provided with a third mating structure 70, and the second stacking device 20 is further provided with a fourth mating structure 80; one location of the first stacking device 10 and the second stacking device 20 is connected by the first mating structure 30 and the second mating structure 40, and the other location is connected by the third mating structure 70 and the fourth mating structure 80. In other words, in one embodiment of this application, the first stacking device 10 is further provided with the third mating structure 70, the second stacking device 20 is further provided with the fourth mating structure 80 adapted to the third mating structure 70, and the other location of the first stacking device 10 and the second stacking device 20 is restricted by the mating of the third mating structure 70 and the fourth mating structure 80.

[0123] Furthermore, in this embodiment, the third mating structure 70 is identical in structure to the first mating structure 30 and is arranged opposite to it, and the fourth mating structure 80 is identical in structure to the second mating structure 40 and is arranged opposite to it. This arrangement facilitates the rapid stacking and locking of the first stacking device 10 and the second stacking device 20, and ensures that the first mating structure 30 and the third mating structure 70 respectively cooperate with the second mating structure 40 and the fourth mating structure 80, limiting relative displacement between the second stacking device 20 and the first stacking device 10 at least in the Z and Y directions.

[0124] It is understandable that the third mating structure 70 has the same structure as the first mating structure 30 and is axially symmetrical, and the fourth mating structure 80 has the same structure as the second mating structure 40 and is axially symmetrical.

[0125] Optionally, the third mating structure 70 has the same structure as the first mating structure 30 and is symmetrical about the central axis of the first stacking device 10, and the fourth mating structure 80 has the same structure as the second mating structure 40 and is symmetrical about the central axis of the second stacking device 20.

[0126] Optionally, the third mating structure 70 has the same structure as the first mating structure 30 and is arranged symmetrically on opposite sides of the first stacking device 10 with respect to the central axis of the first stacking device 10. The fourth mating structure 80 has the same structure as the second mating structure 40 and is arranged symmetrically on opposite sides of the second stacking device 20 with respect to the central axis of the second stacking device 20.

[0127] It is understood that in other embodiments, the third mating structure 70 and the first mating structure 30 may also be arranged opposite each other on other axes of the first stacking device 10. It is understood that the relative arrangement includes, but is not limited to, axisymmetric arrangement, or may be located on both sides of the axis but diagonally arranged.

[0128] Furthermore, in one embodiment of this application, the side of the second part 41 opposite to the slot 412 opening can abut against the first sidewall 113. With this configuration, the second part 41 of the second mating structure 40 and the second part 41 of the fourth mating structure 80 can cooperate to ensure that the movement of the second stacking device 20 in the X direction is also restricted. This ensures that, in the locked state, after the first part 312 and the second part 41 are engaged, the first stacking device 10 and the second stacking device 20 cannot move relative to each other in the X, Y, and Z directions.

[0129] It is understood that in other embodiments, the side of the second part 41 that is opposite to the slot 412 may not abut against the first sidewall 113, and the movement of the second stacking device 20 in the X direction may be limited in other ways. For example, an additional abutting protrusion is provided at the bottom of the second stacking device 20 corresponding to the first mating structure 30 and the third mating structure 70, wherein the abutting protrusion corresponding to the first mating structure 30 can abut against the first sidewall 113 of the movable slot 11 of the first mating structure 30. In the locked state, the abutting protrusion can limit the movement of the second stacking device 20 towards the third mating structure 70 in the X direction. Furthermore, in the locked state, the abutting protrusion corresponding to the third mating structure 70 can abut against the first sidewall 113 of the movable slot 11 of the third mating structure 70. The abutting protrusion can limit the movement of the second stacking device 20 towards the first mating structure 30 in the X direction. In this way, the movement of the first stacking device 10 and the second stacking device 20 in the X direction can still be effectively limited without relying on the second part 41.

[0130] It is understandable that as long as the abutment protrusion can cooperate with the side wall of the movable groove 11 to restrict the movement of the second stacking device 20 in the X direction, the setting position of the abutment protrusion can be flexibly changed. It can be set alone or integrated with other structures.

[0131] See Figures 1 to 3 In this embodiment, the stacking system 100 further includes a fifth mating structure and a sixth mating structure. The fifth mating structure is disposed on the top of the first stacking device 10, and the sixth mating structure is disposed on the bottom of the second stacking device 20. When the second stacking device 20 is stacked on the first stacking device 10, the fifth mating structure and the sixth mating structure can cooperate with each other to at least restrict the movement of the second stacking device 20 in the X direction.

[0132] In other words, in this embodiment, the movement of the second stacking device 20 in the X direction can also be limited by the cooperation between the fifth and sixth cooperation structures, rather than by the cooperation of the second parts 41 on both sides or by additional abutment protrusions. This allows for a more free and flexible placement of the second parts 41.

[0133] Furthermore, in this embodiment, the fifth and sixth mating structures can cooperate to restrict the movement of the second stacking device 20 along the X and Y directions. Specifically, one of the fifth and sixth mating structures includes a limiting protrusion 21, and the other includes a limiting groove 13. Specifically, one of the first stacking device 10 and the second stacking device 20 protrudes along the Z direction to form the limiting protrusion 21, and the other is recessed along the Z direction to form the limiting groove 13, with the limiting protrusion 21 inserted into the limiting groove 13. Thus, the first stacking device 10 and the second stacking device 20 are more stable and reliable during stacking and locking.

[0134] See Figures 1 to 3 In this embodiment, a limiting protrusion 21 is provided on the second stacking device 20, and a limiting groove 13 is formed on the first stacking device 10. This arrangement can restrict the movement of the second stacking device 20 in the X direction while strengthening the restriction on the movement of the second stacking device 20 in the Y direction. It also ensures that the first stacking device 10 and the second stacking device 20 are stacked more tightly, and can be stably and independently placed after separation.

[0135] Optionally, in this embodiment, the limiting groove 13 is not circular, and the limiting groove 13 has peripheral walls around it that can play a limiting role. It can be understood that the limiting protrusions 21 and the limiting grooves 13 can correspond one-to-one, or one limiting groove 13 and multiple limiting protrusions 21 can work together, as long as they can limit the movement of the second stacking device 20 in the X direction or in the X and Y directions. Furthermore, in other embodiments, the shape of the limiting groove 13 can also be circular, arc-shaped or other shapes.

[0136] It is understood that in other embodiments, the fifth and sixth mating structures may also be implemented as other connection structures, as long as they can help limit the relative displacement between the first stacking device 10 and the second stacking device 20.

[0137] See Figures 2 to 7 To facilitate the movement of the first movable part 31 under the gravity of the second stacking device 20, in this embodiment, the first part 312 has a first guide surface 3121, which guides the first part 312 when it is inserted into the slot 412. In other words, when the second stacking device 20 is stacked onto the first stacking device 10, the second part 41 presses against the first guide surface 3121 of the first part 312, causing the base 311 to move the first part 312 away from the second part 41; when the second stacking device 20 is stacked in place, the base 311, under the elastic action of the elastic mechanism 32, moves the first part 312 closer to and engages with the second part 41, forming a locked state.

[0138] In other words, in this embodiment, the first movable member 31 includes a base 311 and a first part 312 disposed on the base 311. The base 311 is movably connected to the first stacking device 10, and the first part 312 is provided with a first guide surface 3121. The second mating structure 40 includes a second part 41 connected to the second stacking device 20. When the second stacking device 20 is stacked to the first stacking device 10, the second part 41 presses against the first guide surface 3121 of the first part 312, causing the base 311 to drive the first part 312 to move away from the second part 41. When the second stacking device 20 is stacked in place, the base 311, under the elastic action of the elastic mechanism 32, drives the first part 312 to approach and lock onto the second part 41, forming a locked state.

[0139] Specifically, the first guide surface 3121 is disposed on the side of the first part 312 that is relatively far away from the base 311. The first guide surface 3121 is an inclined surface.

[0140] Furthermore, the second part 41 has a second guide surface 411, which guides the first part 312 when it is inserted into the slot 412. Specifically, the second guide surface 411 is located on the side of the second part 41 that is relatively far away from the second stacking device 20. With this configuration, in this embodiment, when the second stacking device 20 is placed on the first stacking device 10, under the gravity of the second stacking device 20, the second guide surface 411 of the second part 41 can cooperate with the first guide surface 3121 of the first part 312, allowing the first part 312 to quickly enter the slot 412 and form a locked state. The second guide surface 411 is an inclined surface.

[0141] That is, when the second stacking device 20 is stacked on the first stacking device 10, the second part 41 can press the first part 312 under the gravity of the second stacking device 20 and the action of the first guide surface 3121 and the second guide surface 411, so that the first movable member 31 can slide and make room on the first stacking device 10, thereby allowing the second stacking device 20 to be stacked in place and fit together with the first stacking device 20. After the second stacking device 20 is stacked in place, the first part 312 can be inserted into the slot 412 more quickly under the elastic action of the first elastic member 321, realizing a complete locking process.

[0142] See Figure 6 and Figure 7 Optionally, in this embodiment, the base 311 is provided with two first parts 312, which are spaced apart. This arrangement can further increase the reliability of the snap-fit. Correspondingly, the bottom of the second stacking device 20 is provided with two second parts 41. Each of the two second parts 41 has a slot 412.

[0143] See Figure 6 and Figure 7 Optionally, in this embodiment, the first movable member 31 further includes an auxiliary part 313, which is disposed on the base 311 and located between the two first parts 312. The auxiliary part 313 is used to provide a force application position, thus facilitating the user to apply force to pull the first movable member 31.

[0144] It is understood that the auxiliary part 313 may be a protruding edge provided on the base 311, or other feature parts that can assist in pulling the base 311 to move, such as a groove, or a silicone part or rubber part with a large rough surface.

[0145] Optionally, in this embodiment, two or all three of the base 311, the first part 312, and the auxiliary part 313 are integrally formed. This arrangement facilitates processing.

[0146] It should be noted that in the first embodiment of this application, the first mating structure 30 is located in the middle of the width side of the first stacking device 10, and the movement direction of the first movable member 31 is perpendicular to this width side. It can be understood that in other embodiments, the position of the first mating structure 30 can be set according to requirements, and it can also be set on the length side, or it can be not set in the middle.

[0147] It is understandable that, depending on the requirements, the structure of the third mating structure 70 can be the same as or different from the structure of the first mating structure 30.

[0148] See Figures 8 to 10 Specifically, in this embodiment, the stacking system 100 further includes a second mounting base 91, through which the first elastic member 321 is mounted to the first stacking device 10. This makes the position of the first elastic member 321 more stable, thereby ensuring the stability of the sliding direction of the first movable member 31.

[0149] See Figure 10 Specifically, the second mounting base 91 is fixed on the bottom wall 115 of the movable groove 11. It can be understood that the second mounting base 91 can be integrally formed with the bottom wall 115, or it can be independently formed and installed on the bottom wall 115.

[0150] Furthermore, the second mounting base 91 has an L-shaped structure, including a first mounting plate attached to the bottom wall 115 and a second mounting plate perpendicular to the first mounting plate. One end of the first elastic member 321 abuts against the second mounting plate of the second mounting base 91, and the other end abuts against the first movable member 31, so that the first elastic member 321 can drive the first movable member 31 to move more stably.

[0151] See Figures 6 to 10 To further ensure the installation stability of the first elastic member 321 and the sliding stability of the first movable member 31, a groove 314 is provided inside the first movable member 31. The first elastic member 321 and the second mounting base 91 can be located within the groove 314 to ensure that the second mounting base 91 and the groove 314 can cooperate with each other, so that the first elastic member 321 can drive the first movable member 31 to slide more stably and reliably. Exemplarily, in this embodiment, the groove 314 includes a first groove area and a second groove area connected to each other. The first groove area is used to accommodate the second mounting plate of the second mounting base 91, and the second groove area is used to accommodate the first mounting plate of the second mounting base 91 and the first elastic member 321 located on the first mounting plate, so as to ensure that the first movable member 31 can slide back and forth on the bottom wall 115.

[0152] In this embodiment, the two opposite sidewalls of the movable groove 11 are provided with first limiting portions 1141, and the corresponding two sides of the first movable member 31 are provided with second limiting portions 3111. The first limiting portions 1141 and the second limiting portions 3111 cooperate to limit the movement distance of the first movable member 31. It can be understood that in other embodiments, the first limiting portions 1141 and the second limiting portions 3111 can also cooperate to limit the rotation range of the first movable member 31.

[0153] Optionally, after the second stacking device 20 is stacked onto the first stacking device 10, the first movable member 31 can move on the first stacking device 10 without protruding from the side wall of the first stacking device 10. This configuration can avoid or reduce the risk that the movement distance or range of the first movable member 31 is limited in a narrow space, resulting in the inability to lock or the inability to unlock after locking.

[0154] It is understood that, without affecting the mutual stacking connection between the first stacking device 10 and the second stacking device 20, after the second stacking device 20 is stacked onto the first stacking device 10, the first movable member 31 can also move on the first stacking device 10 and protrude from the side wall of the first stacking device 10.

[0155] See Figures 1 to 5 and Figures 11 to 14 In this embodiment, the first mating structure 30 is provided with a limiting member 50, and the second stacking device 20 is provided with a limiting mating member 60. Under the action of external force, the first mating structure 30 can be unlocked from the second mating structure 40, forming an unlocked state. After the external force is removed, the limiting member 50 on the first mating structure 30 can cooperate with the limiting mating member 60 on the second stacking device 20 to overcome the force provided by the elastic mechanism 32, so that the first mating structure 30 and the second mating structure 40 remain in the unlocked state.

[0156] Thus, the limiting member 50 and the limiting mating member 60 cooperate to keep the first mating structure 30 and the second mating structure 40 in a locked state, which makes it easier to free the user's hands to move and separate the first stacking device 10 and the second stacking device 20.

[0157] For example, in this embodiment, the limiting member 50 and the limiting mating member 60 are in a stop-locking engagement. It can be understood that in other embodiments, the limiting member 50 and the limiting mating member 60 may also be in a snap-fit ​​engagement, an adhesive engagement, or a magnetic engagement, etc.

[0158] See Figures 1 to 5 and Figures 11 to 14Furthermore, in this embodiment, the limiting member 50 is fixed to the first movable member 31. Specifically, the limiting member 50 and the first movable member 31 are an integral structure. This integral molding effectively reduces the number of parts and installation steps, facilitating processing and use, and makes the connection of the limiting member 50 more robust and reliable, less prone to loosening or failure during engagement with the limiting mating member 60. It is understood that in other embodiments, the limiting member 50 and the first movable member 31 can also be separate structures, meaning they can be separately molded and then connected to each other.

[0159] See Figures 1 to 3 Furthermore, in this embodiment, the second stacking device 20 includes a body portion 22, which is stacked with the first stacking device 10; the limiting fitting member 60 and the body portion 22 are integrally formed. The integral structure facilitates processing and enhances the connection strength. It is understood that in other embodiments, the limiting fitting member 60 may also be separately formed from the body portion 22 and then connected to each other.

[0160] For example, in this embodiment, the limiting fitting member 60 is configured as a protruding structure protruding from the bottom of the second stacking device 20. Specifically, the limiting fitting member 60 protrudes from the bottom of the body portion 22 and extends beyond the bottom plane of the body portion 22. In this way, the protruding structure is more convenient to cooperate with the limiting member 50. In this embodiment, the limiting fitting member 60 is integrally formed with the body portion 22.

[0161] Furthermore, at least one of the limiting member 50 and the limiting mating member 60 is at least partially plastically deformable or elastically deformable. In other words, in this embodiment, the limiting member 50 and the limiting mating member 60 achieve mating through deformation, thereby overcoming the force provided by the elastic mechanism 32 and keeping the first mating structure 30 and the second mating structure 40 in the unlocked state.

[0162] In this embodiment, at least part of the limiting member 50 and the limiting mating member 60 is a plastic deformation member. It is understood that plastic deformation members include, but are not limited to, plastic parts, metal parts, etc.

[0163] It should be noted that, in this embodiment, the positions of the limiting member 50 and the limiting mating member 60 do not affect the locking state formed by the first stacking device 10 and the second stacking device 20 by gravity.

[0164] See Figures 11 to 14 Specifically, along the direction from the edge of the second stacking device 20 to the center of the second stacking device 20, the two opposite sides of the limiting mating member 60 are defined as the non-limiting side 62 and the limiting side 61, respectively; during the process of the first mating structure 30 and the second mating structure 40 forming a locked state under the pressure of the second stacking device 20, the limiting member 50 is always located on the limiting side 61 of the limiting mating member 60.

[0165] See Figure 2 The direction along the edge of the second stacking device 20 to the center of the second stacking device 20 is defined as the Q direction. In this embodiment, the Q direction refers to the direction in which the first movable member 31 moves toward the second mating structure 40 to achieve the locking state.

[0166] In other words, in this embodiment, along the Q direction, the side of the limiting mating member 60 closer to the center of the second stacking device 20 is defined as the limiting side 61, and the side farther from the center of the second stacking device 20 is defined as the non-limiting side 62. In the locked state, the limiting member 50 is located on the limiting side 61 of the limiting mating member 60 and has a preset distance L between it and the limiting mating member 60. The preset distance L allows the first mating structure 30 and the second mating structure 40 to lock together under the pressure of the second stacking device 20.

[0167] In this embodiment, under the action of external force, the first mating structure 30 can be unlocked from the second mating structure 40, and the limiting member 50 can squeeze the limiting mating member 60 so as to move to the non-limiting side 62 of the limiting mating member 60 through deformation and displacement to form a stop mating with the limiting mating member 60.

[0168] See Figures 1 to 7 Specifically, the limiting member 50 is disposed on the base 311. When the second stacking device 20 is stacked onto the first stacking device 10, the limiting member 50 can be located on the side of the limiting mating member 60 near the center of the second stacking device 20. The second part 41 presses against the first part 312. The preset distance allows the base 311 to drive the first part 312 to move outward from the first stacking device 10, that is, away from the second part 41. Thus, when the second stacking device 20 is stacked in place, the first elastic member 321 can elastically act on the base 311, causing the base 311 to drive the first part 312 closer to the second part 41 and engage with the second part 41. In other words, the preset distance ensures that during the process of forming the locked state, the limiting member 50 will not interfere with the limiting mating member 60 and affect the movement of the base 311.

[0169] Furthermore, one of the limiting member 50 and the limiting mating member 60 includes a third limiting part 101, and the other includes a connecting body 102 and a fourth limiting part 103 disposed on the connecting body 102. The third limiting part 101 and the connecting body 102 are respectively connected to the first movable member 31 and the main body 22. The connecting body 102 is a plastic deformation member to allow the third limiting part 101 and the fourth limiting part 103 to cooperate and overcome the force provided by the elastic mechanism 32, so that the first mating structure 30 and the second mating structure 40 are kept in the unlocked state.

[0170] Thus, through the plastic deformation of the connecting body 102, the third limiting part 101 can pass over the fourth limiting part 103, and then stop and cooperate with the fourth limiting part 103 on the limiting side 61 to overcome the force provided by the elastic mechanism 32, so that the first cooperating structure 30 and the second cooperating structure 40 remain in the unlocked state.

[0171] It is understood that in this embodiment, the third limiting part 101 and the fourth limiting part 103 are both made of hard material so that their stopping action is less likely to fail.

[0172] See Figures 1 to 5 and Figures 11 to 14 Specifically, in this embodiment, the limiting member 50 includes a third limiting part 101, and the limiting mating member 60 includes a connecting body 102 and a fourth limiting part 103 disposed on the connecting body 102. The third limiting part 101 is connected to the first movable member 31, and the connecting body 102 is connected to the body part 22. Further, the third limiting part 101 protrudes from the side of the base 311 away from the bottom wall 115, and one end of the connecting body 102 is connected to the bottom plane of the body part 22.

[0173] It is understood that in other embodiments, one end of the connecting body 102 may only be partially connected to the first movable member 31 or the main body 22. In this way, the connecting body 102 is more easily deformable and requires less effort.

[0174] In this embodiment, the connecting body 102 also has a hollow portion 1021. The hollow portion 1021 makes the connecting body 102 more deformable. It can be understood that the hollow portion 1021 can penetrate the connecting body 102 axially or radially.

[0175] See Figures 1 to 5 and Figures 11 to 14 In this embodiment, the connecting body 102 is a column, with one end connected to the main body 22. A hollow portion 1021 penetrates the column along its axial direction, and a fourth limiting portion 103 is located on the circumferential wall of the connecting body 102, i.e., on the circumferential wall of the column. The hollow column is more easily deformed; in other words, when the third limiting portion 101 and the fourth limiting portion 103 press against each other, the circumferential wall of the column can deform towards the hollow portion, causing the third limiting portion 101 and the fourth limiting portion 103 to shift, thereby stopping and engaging, maintaining the first portion 312 and the second portion 41 in a disengaged state.

[0176] It is understood that in other embodiments, the fourth limiting part 103 may also be provided on the end wall of the connecting body 102 away from the main body part 22.

[0177] Furthermore, for ease of connection and manufacturing, in this embodiment, the third limiting part 101 and the base 311 are integrally formed. The fourth limiting part 103 and the connecting body 102 are integrally formed. It can be understood that both the fourth limiting part 103 and the connecting body 102 can be integrally formed with the main body 22.

[0178] Furthermore, in this embodiment, two third limiting portions 101 are spaced apart and are positioned opposite each other; a fourth limiting portion 103 is provided on each of the opposite sides of the circumferential wall of the connecting body 102. Thus, the two third limiting portions 101 can be squeezed and pass over the two fourth limiting portions 103 from both sides of the connecting body 102, thereby respectively engaging with the two fourth limiting portions 103 for stopping.

[0179] See Figures 11 to 14 Specifically, in this embodiment, two third limiting portions 101 are spaced apart along the Y direction and protrude from the base 311 on the side facing away from the first stacking device 10. The connecting body 102 and the two fourth limiting portions 103 are located between the two second portions 41.

[0180] It is understood that in other embodiments, one or more third limiting portions 101 and one or more fourth limiting portions 103 may also be provided. Furthermore, it is understood that the number of third limiting portions 101 and fourth limiting portions 103 may be equal or unequal, as long as at least one third limiting portion 101 can form a stop engagement with one of the fourth limiting portions 103. In this embodiment, both the third limiting portion 101 and the fourth limiting portion 103 are columnar bodies.

[0181] See Figures 1 to 3 It is understood that in other embodiments, the limiting fitting 60 may also be configured as a sidewall of the body portion 22. For ease of distinction, the sidewall of the body portion 22 is designated as body sidewall 221. See also Figure 30 and Figure 31 Furthermore, in other embodiments, the limiting member 50 may also be configured as a protrusion structure protruding from the first movable member 31, the protrusion structure having a semi-circular / minor arc / major arc outer peripheral wall. Thus, in the locked state, the limiting member 50 can be located at the bottom of the body portion 22; when the first portion 312 and the second portion 41 are released from the locking, the limiting member 50 can move with the base 311 and move out from the bottom of the body portion 22, abutting against the side wall of the second stacking device 20.

[0182] See Figures 1 to 5 and Figures 11 to 14To facilitate stop engagement, the limiting member 50 has a third guide surface 1011 on the side near the center of the first stacking device 10, and the limiting engagement member 60 has a fourth guide surface 1031 on the side away from the center of the second stacking device 20. When an external force is applied to the first movable member 31 in the opposite direction to the locking direction, the first movable member 31 can unlock from the second engaging structure 40, and the third guide surface 1011 is pushed past the fourth guide surface 1031, causing the limiting member 50 to move from the limiting side 61 of the limiting engagement member 60 to the non-limiting side 62. In this way, the inclined surfaces act as guides, making operation easier and preventing damage to the structures of the limiting member 50 and the limiting engagement member 60, thus extending their service life.

[0183] For example, in this embodiment, the extension directions of the third guide surface 1011 and the fourth guide surface 1031 are in the same direction as the Z direction. It can be understood that in other embodiments, the extension directions of the third guide surface 1011 and the fourth guide surface 1031 may also be perpendicular to the Z direction and the locking direction, that is, the extension directions may also be in the same direction as the X direction or the Y direction. See [link to documentation] Figure 2 In this embodiment, the locking direction is the same as the Q direction.

[0184] In this embodiment, the stop fit between the limiting member 50 and the limiting mating member 60 is achieved through plastic deformation. See also Figures 43 to 45 It is understood that in other embodiments, the stop engagement between the limiting member 50 and the limiting mating member 60 can also be achieved through elastic deformation. For example, in some embodiments, one of the limiting member 50 and the limiting mating member 60 includes a first limiting body 104, and the other includes a first mounting base 105, a second elastic member 106, and a second limiting body 107; the first limiting body 104 and the first mounting base 105 are respectively connected to the first movable member 31 and the main body 22; the first mounting base 105 is provided with a mounting groove 1051, one end of which passes through the first mounting base 105 to form a first hole 1052; the second elastic member 106 is accommodated in the mounting groove 1051, and one end of which abuts against the groove wall of the mounting groove 1051 opposite to the first hole 1052, and the other end is provided with the second limiting body 107 between it and the first hole 1052; the second limiting body 107 can at least partially protrude from the first hole 1052 under the elastic action of the second elastic member 106, so as to cooperate with the first limiting body 104, overcome the force provided by the elastic mechanism 32, and keep the first mating structure 30 and the second mating structure 40 in the unlocked state.

[0185] Alternatively, in some embodiments, one of the limiting member 50 and the limiting mating member 60 includes two spaced-apart first limiting bodies 104, and the other includes a first mounting base 105, a second elastic member 106, and two second limiting bodies 107; the first limiting bodies 104 and the first mounting base 105 are respectively connected to the first movable member 31 and the main body 22; the first mounting base 105 is provided with a mounting groove 1051, which passes through the opposite ends of the first mounting base 105 to form a first hole 1052 and a second hole 1053, and the second elastic member 106 accommodates... Within the mounting groove 1051, one of the two second limiting bodies 107 is located between the second elastic member 106 and the first hole 1052, and the other is located between the second elastic member 106 and the second hole 1053. The two second limiting bodies 107 can protrude at least partially from the first hole 1052 and the second hole 1053 under the elastic action of the second elastic member 106, respectively. Each second limiting body 107 can cooperate with a first limiting body 104 to overcome the force provided by the elastic mechanism 32, so that the first cooperating structure 30 and the second cooperating structure 40 remain in the unlocked state.

[0186] Thus, when the first mating structure 30 and the second mating structure 40 are switched to the unlocked state, the second limiting body is pressed by the first limiting body and can first enter the mounting groove. After the relative positions of the first limiting body and the second limiting body are shifted or interchanged, the second limiting body can protrude out of the first hole or the second hole again through the elastic action of the second elastic element, and achieve a stop engagement with the first limiting body on the limiting side, thereby keeping the first mating structure 30 and the second mating structure 40 in the unlocked state.

[0187] See Figures 43 to 45 To facilitate the stop engagement, the first limiting body 104 may be provided with a fifth guide surface 1041. The second limiting body 107 may also be provided with a sixth guide surface 1071. Both the fifth guide surface 1041 and / or the sixth guide surface 1071 are inclined surfaces.

[0188] Furthermore, in this embodiment, multiple third mating structures 70 are provided. See also Figures 1 to 3The top of the first stacking device 10 is provided with a third mating structure 70 having the same structure as the first mating structure 30, and four additional third mating structures 70' having different structures from the first mating structure 30. Thus, the first stacking device 10 can connect to a second stacking device 20 of the same size via the first mating structures 30 and third mating structures 70 on both sides. Alternatively, two smaller second stacking devices 20 can be connected via the first mating structures 30 and third mating structures 70 on both sides respectively mating with the middle third mating structure 70'. Therefore, one or more second stacking devices 20 can be stacked and connected on the first stacking device 10 as needed. In other words, in other embodiments, the number and position of the first mating structures 30 and third mating structures 70 can be flexibly set according to specific needs and are not limited here.

[0189] Furthermore, the first mating structure 30 and the third mating structure 70 can be located on the same height plane or on different height planes. In other words, the two locations where the first mating structure 30 and the third mating structure 70 are set in the first stacking device 10 can have a height difference.

[0190] See Figures 1 to 3 See also Figures 32 to 35 In this embodiment, the third mating structure 70 and the fourth mating structure 80, which differ from the first mating structure 30 and the second mating structure 40, can be implemented as two interlocking plates. Alternatively, one can be a groove and the other a protrusion that interlock with each other.

[0191] Furthermore, in this embodiment, the first stacking device 10 includes a first connector and a second connector that are interconnected. The first connector is made of plastic, and the second connector is made of metal or plastic. The first mating structure 30 and the third mating structure 70 are both disposed on the first connector. And / or, the second stacking device 20 includes a first connector and a second connector that are interconnected. The first connector is made of plastic, and the second connector is made of metal or plastic. The second mating structure 40 and the fourth mating structure 80 are both disposed on the first connector.

[0192] In other words, the parts with limiting structures such as the first mating structure 30, the third mating structure 70, the second mating structure 40, and the fourth mating structure 80 are preferably made of plastic to facilitate structural molding and snap-fit. Furthermore, plastic parts are easy to color change, highlighting the location of the mating structures and improving the product's aesthetics and practicality.

[0193] Furthermore, in this embodiment, the second connector is made of stainless steel. Stainless steel has high hardness and can provide strong support.

[0194] It is understood that when the first stacking device 10 and the second stacking device 20 are storage boxes, the first connecting body may include an upper cover and a lower cover, and the second connecting body includes a middle box with openings on opposite sides. The upper cover and the lower cover are used to close one of the openings to form a complete storage box.

[0195] It is understood that when the first stacking device 10 and the second stacking device 20 are cabinets, the intermediate cabinet may also have cabinet openings or drawer openings, etc. It is understood that, depending on the actual situation, the upper cover and / or lower cover may be detachably connected to the intermediate cabinet or fixedly connected to the intermediate cabinet.

[0196] It should be noted that in other embodiments, there may be one or more second stacking devices 20, and the length and / or width of a single second stacking device 20 is less than the length and / or width of the first stacking device 10; when multiple second stacking devices 20 are provided, the total length and total width of the multiple second stacking devices 20 after being assembled in parallel are not greater than the length and width of the first stacking device 10.

[0197] It is further understood that, in other embodiments, the first stacking device 10 and / or the second stacking device 20 may also be implemented as a trolley, cabinet, container with an opening, or other types of accommodating structures, operating structures, etc. Optionally, in other embodiments, the shape of the storage box includes, but is not limited to, cuboids, cubes, polygonal prisms, cylinders, etc.

[0198] For example, see Figure 35 In one embodiment, one of the first stacking device 10 and / or the second stacking device 20 includes a base 92, on which a flexible bag portion 93 is connected. A first mating structure 30 or a second mating structure 40 is provided on the side of the base away from the flexible bag portion 93 to form a storage bag that can be connected to other stacking devices. This storage bag can be used as a tool bag.

[0199] For example, see Figure 36 and Figure 37 In one embodiment, the first stacking device 10 and / or the second stacking device 20 include a storage box 95 with an opening 951 and a cover 96 detachably covering the opening 951. One of the cover 96 and the storage box 95 is rotatably provided with a buckle 97, and the other is provided with a hook 98. The cover 96 covers the opening 951, and by rotating the buckle 97 to fasten it onto the hook 98, the cover 96 can be fixed to the storage box 95.

[0200] For example, see Figure 38In one embodiment, the first stacking device 10 and / or the second stacking device 20 may also be configured as a workbench 94, with a first mating structure 30 and a second mating structure 40 provided on the side of the workbench 94 away from the work surface 941 for connection with other stacking devices.

[0201] For example, see Figure 36 When the first stacking device 10 or the second stacking device 20 is implemented as a trolley, the first connecting body may include a support plate, the second connecting body may include a trolley frame, the support plate is disposed on the trolley frame, and the first mating structure 30, the third mating structure 70, etc. are all disposed on the support plate.

[0202] Furthermore, the stacking direction of the stacking system 100 is not limited and can be set as needed. See also Figure 46 and Figure 47 In some embodiments, the stacking system 100 can be stacked on the ground or stacked and suspended on other external structures, including but not limited to ceilings 210, walls, beams 220, etc.

[0203] See Figures 15 to 18 This application also provides a second embodiment, the inventive concept and most of the structure of which are the same as the first embodiment, except that:

[0204] In the second embodiment, the limiting member 50 includes a connecting body 102 and a fourth limiting part 103 disposed on the connecting body 102, and the limiting mating member 60 includes a third limiting part 101. Specifically, the connecting body 102 is connected to the base 311, the fourth limiting part 103 is disposed on the annular peripheral wall of the connecting body 102, and the third limiting part 101 protrudes from the bottom plane of the body part 22.

[0205] In the locked state, the fourth limiting part 103 is located on the side of the third limiting part 101 that is relatively close to the center of the second stacking device 20, that is, the limiting side 61. When switching to the unlocked state, the first elastic member 321 elastically acts on the base 311, and the connecting body 102 moves with the base 311, so that the fourth limiting part 103 presses and passes over the third limiting part 101, so as to form a stop engagement with the third limiting part 101 on the non-limiting side 62 of the third limiting part 101.

[0206] See Figure 19 , Figure 19A , Figures 20 to 22 This application also provides a third embodiment, the inventive concept and most of the structure of which are the same as those of the first embodiment, except that:

[0207] See Figure 19 , Figure 19A , Figure 20In the third embodiment, one end of the connecting body 102 is connected to the bottom plane of the body part 22, and the other end is provided with a fourth limiting part 103 on the end wall.

[0208] Furthermore, the extension directions of the third guide surface 1011 of the third limiting part 101 and the fourth guide surface 1031 of the fourth limiting part 103 are perpendicular to the Z direction and the locking direction. In other words, in this embodiment, the extension directions of the third guide surface 1011 and the fourth guide surface 1031 are in the same direction as the Y direction.

[0209] See Figure 19A Specifically, in this embodiment, a third limiting part 101 is provided, and a connecting body 102 is also provided. One end of the connecting body 102 is connected to the body part 22, and the other end extends in a direction away from the first body part 22 and is provided with a fourth limiting part 103.

[0210] Furthermore, in this embodiment, the connecting body 102 has a hollow portion 1021 along the radial direction of the connecting body 102 in the same X direction. The hollow portion 1021 makes the connecting body 102 more easily deformable.

[0211] See Figures 23 to 27 This application also provides a fourth embodiment, which has the same inventive concept and most of the structure as the first embodiment, except that:

[0212] In the fourth embodiment, the first movable member 31 is rotatably connected to the first stacking device 10. Specifically, in this embodiment, the first movable member 31 is rotatably connected to the first stacking device 10 along the Y-axis. It can be understood that when the first mating structure 30 is disposed on one side of the first stacking device 10 along the Y-direction, the first movable member 31 can be rotatably connected to the first stacking device 10 along the X-axis.

[0213] In this embodiment, see Figures 24 to 27 Specifically, the first movable component 31 is provided with a first rotating shaft 33, and the first movable component 31 is rotatably connected to the first stacking device 10 through the first rotating shaft 33. In this way, the movement of the first movable component 31 relative to the first stacking device 10 is relatively simple and quick.

[0214] Furthermore, in this embodiment, the first elastic element 321 is configured as a torsion spring. The first elastic element 321 is sleeved on the outer periphery of the first rotating shaft 33 and abuts against the first movable element 31 and the first stacking device 10 respectively, so as to apply force to the first movable element 31.

[0215] See Figure 27 Furthermore, the bottom wall 115 of the active groove 11 is also provided with a clearance groove 12, which is used to install the first elastic member 321 and provide deformation space for the first elastic member 321.

[0216] See Figure 28 and Figure 29 This application also provides a fifth embodiment, which has the same inventive concept and most of the structure as the first embodiment, except that:

[0217] In the fifth embodiment, the first movable member 31 is rotatably connected to the first stacking device 10. Specifically, in this embodiment, the first movable member 31 is rotatably connected to the first stacking device 10 along the Z-axis.

[0218] Furthermore, in this embodiment, one end of the first movable member 31 along the Y direction is rotatably connected to the first stacking device 10, and the other end is provided with a first part 312 that engages with the second mating structure 40.

[0219] It is understood that in other embodiments, when the first mating structure 30 is disposed on one side of the first stacking device 10 along the Y direction, one end of the first movable member 31 along the X direction is rotatably connected to the first stacking device 10, and the other end is provided with a first part 312 that engages with the second mating structure 40. Furthermore, in this embodiment, a third limiting part 101 is provided on the base 311.

[0220] Furthermore, in this embodiment, one end of the first movable member 31 is provided with a second rotating shaft 34, and one end of the first movable member 31 is rotatably connected to the first stacking device 10 through the second rotating shaft 34.

[0221] Furthermore, in this embodiment, the first elastic element 321 is configured as a torsion spring. The first elastic element 321 is sleeved on the outer periphery of the second rotating shaft 34 and abuts against the first movable element 31 and the first stacking device 10 respectively, so as to apply force to the first movable element 31.

[0222] Furthermore, a receiving groove (not shown) is also provided on one side wall of the movable groove 11. The receiving groove is used to install the first elastic member and to provide deformation space for the first elastic member.

[0223] See Figure 30 This application also provides a sixth embodiment, the inventive concept and most of the structure of which are the same as the first embodiment, except that:

[0224] In the sixth embodiment, the limiting member 50 is configured as a protrusion structure protruding from the first movable member 31, the protrusion structure having a semi-circular / minor arc / major arc outer peripheral wall. The fourth limiting part 103 is formed by the side wall of the second stacking device 20. In the locked state, the limiting member 50 can be located at the bottom of the second stacking device 20; when the first part 312 and the second part 41 are released from the locking, the limiting member 50 can move with the base 311 and move out from the bottom of the second stacking device 20, abutting against the side wall of the second stacking device 20.

[0225] It is understood that, in order to avoid affecting the formation of the locked state, at least part of one of the limiting member 50 and the bottom wall 115 of the second stacking device 20 may be deformable.

[0226] See Figure 31 For example, to facilitate the removal of the limiting member 50 from the bottom of the second stacking device 20, in one embodiment, the limiting member 50 may also be implemented as an arch-shaped protrusion. Thus, in the locked state, the arch-shaped limiting member 50 can deform into a square shape opposite to the arch, making it easier for the base 311 to slide or rotate outward under the action of external force during the transition from the locked state to the unlocked state.

[0227] In other words, when the limiting member 50 is on the limiting side 61, it has space to release elastic deformation in order to avoid failure due to long-term pressure from the second stacking device 20.

[0228] See Figures 41 to 42 This application also provides a seventh embodiment, the inventive concept and most of the structure of which are the same as the first embodiment, except that:

[0229] In the seventh embodiment, one end of the connecting body 102 is only partially connected to the body portion 22. In other words, in this embodiment, one end of the connecting body 102 is partially connected to the body portion 22, with a gap between the part and the body portion 22. This increases the deformation of the connecting body 102, making it easier to deform, and since the connecting body 102 is elastically deformable, operation is less strenuous.

[0230] For example, in this embodiment, the gap is formed by cutting. See specifically... Figure 42 In this embodiment, after the connecting body 102 and the main body 22 are integrally formed, a portion of the connecting body 102 is cut off along the cutting area 1022 to form a gap. It is understood that in other embodiments, it can also be manufactured separately. Figure 42 After connecting the main body 102, connect the main body 102 to the main body 22.

[0231] It can be further understood that in other embodiments, when the limiting member 50 includes the connecting body 102 and the fourth limiting part 103, one end of the connecting body 102 may also be only partially connected to the first movable member 31.

[0232] See Figures 43 to 44 This application also provides an eighth embodiment, the inventive concept and most of the structure of which are the same as the first embodiment, except that:

[0233] In the eighth embodiment, the stop engagement between the limiting member 50 and the limiting mating member 60 is achieved through elastic deformation. Specifically, in this embodiment, the limiting member 50 includes two spaced-apart first limiting bodies 104, and the limiting mating member 60 includes a first mounting base 105, a second elastic member 106, and two second limiting bodies 107; the first limiting bodies 104 are connected to the first movable member 31, and the first mounting base 105 is connected to the main body 22. The first mounting base 105 is provided with a mounting groove 1051, which passes through the opposite ends of the first mounting base 105 to form a first hole 1052 and a second hole 1053. The second elastic member 106 is accommodated in the mounting groove 1051. One of the two second limiting bodies 107 is located between the second elastic member 106 and the first hole 1052, and the other is located between the second elastic member 106 and the second hole 1053. The two second limiting bodies 107 can protrude at least partially from the first hole 1052 and the second hole 1053 under the elastic action of the second elastic member 106, respectively. Each second limiting body 107 can cooperate with a first limiting body 104 to overcome the force provided by the elastic mechanism 32 and keep the first cooperating structure 30 and the second cooperating structure 40 in the unlocked state.

[0234] Thus, when the first mating structure 30 and the second mating structure 40 are switched to the unlocked state, the second limiting body 107, pressed by the first limiting body 104, can first enter the mounting groove 1051. After the relative positions of the first limiting body 104 and the second limiting body 107 are shifted or interchanged, the second limiting body 107 can, through the elastic action of the second elastic member 106, protrude again from the first hole 1052 or the second hole 1053, and achieve a stop engagement with the first limiting body 104 on the limiting side 61, thereby keeping the first mating structure 30 and the second mating structure 40 in the unlocked state.

[0235] To facilitate stop engagement, the first limiting body 104 may be provided with a fifth guide surface 1041. The second limiting body 107 may also be provided with a sixth guide surface 1071. Both the fifth guide surface 1041 and / or the sixth guide surface 1071 are inclined surfaces.

[0236] See Figure 45 It is understood that in some embodiments, the fifth guide surface 1041 and the sixth guide surface 1071 may not be provided.

[0237] Furthermore, the second limiting body 107 includes a first connecting block 1072 and a second connecting block 1073 connected to each other. The size of the first connecting block 1072 is smaller than the sizes of the first hole 1052 and the second hole 1053, and the size of the second connecting block 1073 is larger than the sizes of the first hole 1052 and the second hole 1053. The first connecting block 1072 can protrude from the first hole 1052 or the second hole 1053 under the elastic action of the second elastic member 106. In this way, the second connecting block 1073 can always be located within the mounting groove 1051, ensuring that the second limiting body 107 is not easily dislodged from the first mounting base 105. It can be understood that the sixth guide surface 1071 is provided on the first connecting block 1072.

[0238] Furthermore, the second connecting block 1073 has a connecting groove 1074 on the side opposite to the first connecting block 1072, and the two ends of the second elastic member 106 can be accommodated in the two connecting grooves 1074 of the two second connecting blocks 1073 to ensure that the two fit together tightly and stably.

[0239] See Figure 36 This application also provides a ninth embodiment, the inventive concept and most of the structure of which are the same as the first embodiment, except that:

[0240] In the ninth embodiment, the first stacking device 10 is a trolley, and the second stacking device 20 is a storage box.

[0241] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0242] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A stacking system, characterized in that, The device includes a first stacking device and a second stacking device, wherein the first stacking device is provided with a first mating structure and the second stacking device is provided with a second mating structure; the first mating structure and the second mating structure have a locked state and an unlocked state. In the locked state, the first mating structure and the second mating structure are locked to connect the first stacking device and the second stacking device; In the unlocked state, the first mating structure and the second mating structure can be unlocked.

2. The stacking system according to claim 1, characterized in that, An elastic mechanism is also provided between the first mating structure and the first stacking device. The elastic mechanism acts elastically on the first mating structure to provide a force in the direction in which the first mating structure and the second mating structure maintain a locked state. Wherein, the first mating structure can engage with the second stacking device after being unlocked from the second mating structure, overcoming the force provided by the elastic mechanism, so that the first mating structure and the second mating structure remain in the unlocked state.

3. The stacking system according to claim 2, characterized in that, The first mating structure includes a first movable member, which is movably connected to the first stacking device. The first movable member can move on the first stacking device under the pressure of the second stacking device, and can approach and lock onto the second mating structure under the elastic action of the elastic mechanism to form the locked state.

4. The stacking system according to claim 3, characterized in that, The first movable component is slidably or rotatably connected to the first stacking device.

5. The stacking system according to claim 4, characterized in that, The first movable member rotates about one of the axes in the X-axis, Y-axis, or Z-axis direction.

6. The stacking system according to any one of claims 3-5, characterized in that, The first movable component includes a base and a first part disposed on the base. The base is movably connected to the first stacking device, and the first part is provided with a first guide surface. The second mating structure includes a second part connected to the second stacking device. When the second stacking device is stacked onto the first stacking device, the second part presses against the first guide surface of the first part, causing the base to drive the first part to move away from the second part; When the second stacking device is stacked in place, the base, under the elastic action of the elastic mechanism, drives the first part to approach and lock onto the second part, forming the locked state.

7. The stacking system according to claim 3, characterized in that, The first stacking device has a movable slot for mounting the first movable component. The movable slot has a first slot and a second slot that are interconnected. The first slot is located on the side wall of the first stacking device, and the second slot is located on the top wall of the first stacking device. The first movable component can move toward the first slot.

8. The stacking system according to claim 3, characterized in that, The elastic mechanism includes a first elastic element, which abuts against the first movable element and the first stacking device respectively to apply force to the first movable element.

9. The stacking system according to claim 3, characterized in that, The first mating structure is provided with a limiting component, and the second stacking device is provided with a limiting mating component; Under the action of external force, the first mating structure can be unlocked from the second mating structure, forming an unlocked state; After the external force is removed, the limiting member on the first mating structure can engage with the limiting mating member on the second stacking device to overcome the force provided by the elastic mechanism, so that the first mating structure and the second mating structure remain in the unlocked state.

10. The stacking system according to claim 9, characterized in that, Along the direction from the edge of the second stacking device to the center of the second stacking device, the two opposite sides of the limiting mating member are defined as the non-limiting side and the limiting side, respectively. During the process of the first mating structure and the second mating structure forming the locked state under the pressure of the second stacking device, the limiting member is always located on the limiting side of the limiting mating member.

11. The stacking system according to claim 9, characterized in that, The limiting member and the first movable member are either an integral structure or a separate structure; and / or... The second stacking device includes a body portion, which is stacked with the first stacking device; the limiting fitting member and the body portion are either an integral structure or a separate structure.

12. The stacking system according to claim 11, characterized in that, The limiting fitting is configured as a protruding structure protruding from the body portion, or the limiting fitting is configured as a sidewall of the body portion.

13. The stacking system according to claim 11, characterized in that, One of the limiting member and the limiting mating member is at least partially capable of plastic or elastic deformation.

14. The stacking system according to claim 13, characterized in that, One of the limiting member and the limiting mating member includes a third limiting part, and the other includes a connecting body and a fourth limiting part disposed on the connecting body. The third limiting part and the connecting body are respectively connected to the first movable member and the main body. The connecting body is a plastic deformation component, which allows the third limiting part and the fourth limiting part to cooperate to overcome the force provided by the elastic mechanism, so that the first cooperating structure and the second cooperating structure remain in the unlocked state.

15. The stacking system according to claim 14, characterized in that, The connecting body has a hollowed-out portion; and / or One end of the connecting body is connected to the first movable part or the main body.

16. The stacking system according to claim 15, characterized in that, The hollowed-out portion penetrates the connecting body along its axial or radial direction; and / or, The fourth limiting part is provided on the circumferential peripheral wall of the connecting body or the end wall of the connecting body.

17. The stacking system according to claim 14, characterized in that, The third limiting part is provided in two at intervals; the fourth limiting part is provided on each of the two opposite sides of the circumferential wall of the connecting body; The two third limiting parts can cooperate with the two fourth limiting parts from both sides of the connecting body to overcome the force provided by the elastic mechanism, so that the first cooperating structure and the second cooperating structure remain in the unlocked state.

18. The stacking system according to claim 10, characterized in that, The limiting member has a third guide surface on the side closer to the center of the first stacking device; and / or, the limiting mating member has a fourth guide surface on the side farther from the center of the second stacking device.

19. The stacking system according to claim 11 or 13, characterized in that, One of the limiting member and the limiting mating member includes a first limiting body, and the other includes a first mounting base, a second elastic member, and a second limiting body; The first limiting body and the first mounting base are respectively connected to the first movable member and the main body; the first mounting base is provided with a mounting groove, one end of which passes through the first mounting base to form a first hole; the second elastic member is accommodated in the mounting groove, and one end of which abuts against the groove wall opposite to the first hole, while the other end is provided with the second limiting body between itself and the first hole; the second limiting body can at least partially protrude from the first hole under the elastic action of the second elastic member, so as to cooperate with the first limiting body, overcome the force provided by the elastic mechanism, and keep the first cooperating structure and the second cooperating structure in the unlocked state; or, One of the limiting member and the limiting mating member includes two first limiting bodies spaced apart, and the other includes a first mounting base, a second elastic member, and two second limiting bodies; The first limiting body and the first mounting base are respectively connected to the first movable member and the main body; the first mounting base is provided with a mounting groove, which passes through the opposite ends of the first mounting base to form a first hole and a second hole. The second elastic member is accommodated in the mounting groove. One of the two second limiting bodies is located between the second elastic member and the first hole, and the other is located between the second elastic member and the second hole. The two second limiting bodies can protrude at least partially from the first hole and the second hole under the elastic action of the second elastic member. Each second limiting body can cooperate with one of the first limiting bodies to overcome the force provided by the elastic mechanism, so that the first cooperating structure and the second cooperating structure remain in the unlocked state.

20. The stacking system according to claim 19, characterized in that, The first limiting body is provided with a fifth guide surface; and / or, the second limiting body is provided with a sixth guide surface.

Images