A container stacking structure

Abstract

The present invention provides a container stacking structure, including a plurality of stackable containers, wherein the stacked containers are connected by a rotary locking mechanism, wherein the rotary locking mechanism connection includes a rotating groove and a card plate that can rotate in the rotating groove, wherein the inner wall of the rotating groove is provided with a lip-shaped buckle that can overlap with both ends of the card plate, and the rotating groove and the card plate are respectively provided on two matching containers. After the two containers are stacked, the card plate is embedded in the rotating groove and the two matching containers are relatively rotated, so that both ends of the card plate overlap with the lip-shaped buckle, and thus, a reliable connection is formed between the two matching containers through the locking of the lip-shaped buckle and the card plate. The rotary locking mechanism in the present invention can give the container more expansion functions, facilitate the connection and combination of more containers, and can be continuously stacked, connected and expanded as needed to form a composite storage device with larger capacity and finer classification.

Description

Technical Field

[0001] The present invention relates to a storage tool, and more particularly to a container stacking structure. Background Art

[0002] When using storage tools to store items, people hope to be able to classify and store items according to type or specification in a limited storage space. Otherwise, the items are mixed regardless of size and purpose, which can easily cause inconvenience in finding and taking items. This problem is particularly evident in tool boxes. Sometimes, in order to find the required tools buried deep at the bottom of the tool box, all the items in the tool box have to be dumped out. Although some tool boxes form areas for classified storage of tools by dividing the chambers inside, there are still problems of inconvenience in use in certain special scenarios. For example, when repairing a certain mechanism of production equipment, the size of each component in the mechanism is small, and the specifications of the tools used for disassembly and assembly are small. However, since tools of different specifications are still stored in the same tool box, when the tool box is taken to the work site, the large-sized tools that are not needed will still be carried together, increasing physical exertion. The invention with publication number CN108698221A on October 23, 2018 discloses a toolbox, comprising: a base container, which has a base portion and is configured to have upright extending side walls defining a top opening of the base container, the base and the side walls together defining the interior of the container; at least two covers, which can be shifted between a closed position and an open position above the top opening of the base container, in which the at least two covers extend together and cover the top opening, and in the open position, at least one of the at least two covers is shifted away from at least one other of the at least two covers and at least partially exposes the interior of the container to allow access to the interior of the container, each of the at least two covers includes a free edge and a mating edge; at least two locking devices, which extend over the upper portion of the base container, each locking device being configured to lock at least one of the at least two covers at least relative to the base container at a corresponding mating edge. Although the invention can provide compartments in the cover, which can help to orderly manage items to a certain extent, the toolbox is already the smallest portable storage unit, and the invention cannot more clearly distinguish and store useful and useless tools in a specific application scenario. Summary of the invention

[0003] Existing storage tools are not convenient for fine classification of storage items within a limited space, which affects the convenience of use. To overcome this defect, the present invention provides a container stacking structure that can easily expand the capacity of the storage tool, more finely divide the storage area, and improve the convenience of use.

[0004] The technical solution of the present invention is: a container stacking structure, including a plurality of stackable containers, the stacked containers are connected by a rotating locking mechanism, the rotating locking mechanism connection includes a rotating groove and a card plate that can rotate in the rotating groove, the inner wall of the rotating groove is provided with a lip-shaped buckle that can overlap with the two ends of the card plate, and the rotating groove and the card plate are respectively provided on two adjacent containers that are matched. After the containers are stacked, the card plate on one container is embedded in the rotating groove on the adjacent container and the two containers participating in the matching are relatively rotated, so that the two ends of the card plate overlap with the lip-shaped buckle, so that the card plate is blocked by the inner wall of the rotating groove in the tangential direction and blocked by the lip-shaped buckle in the vertical direction, so that the card plate cannot be separated from the rotating groove, and a reliable connection is formed between the two containers participating in the matching through the locking of the lip-shaped buckle and the card plate. The rotating locking mechanism of this structure can give the container more expansion functions, facilitate the connection and combination of more containers, and can continuously stack and connect more containers like building blocks as needed to form a composite storage device with larger capacity and finer classification.

[0005] Preferably, a pair of limit blocks are provided on the inner wall of the rotating groove, each pair of limit blocks are oppositely positioned and spaced apart from the lip buckle, and the limit blocks are provided with limit ribs that can contact the side edges of the card plate, and when the card plate contacts the limit blocks, the side edges at opposite ends of the card plate contact the limit ribs on the two opposite limit blocks respectively. The spacing between the limit blocks and the lip buckle is set to be equal to or slightly larger than the width of the card plate, so that when the card plate is matched with the rotating groove, the side edge of the card plate uses the limit rib as a reference to quickly find the entry position of the card plate in the rotating groove, thereby efficiently completing the connection between the containers.

[0006] Preferably, the inner wall of the rotating groove is in an arc shape, the clamping plate includes a plate body and a lower convex part, the lower convex part is fixed at the bottom of the plate body, the edges of each side of the plate body exceed the circumference of the lower convex part, and a relative convex arc surface is provided on the circumference of the lower convex part, the convex arc surface abuts against the end surface of the free end of the lip-shaped buckle, and the end of the plate body abuts against the inner wall of the rotating groove. When the convex arc surface abuts against the end surface of the free end of the lip-shaped buckle, the end of the plate body also abuts against the inner wall of the rotating groove, the convex arc surface guides the lip-shaped buckle, and the inner wall of the rotating groove guides the end of the plate body, ensuring that the clamping plate rotates completely in the rotating groove, and the path of the two containers involved in the relative rotation is accurately defined.

[0007] Preferably, the container includes a main container and a sub-container, and the sub-container is smaller than the main container. The containers involved in the matching can be of the same size or of different sizes, so as to better adapt to the space occupied by items of different specifications and reduce space waste.

[0008] Preferably, a positioning mechanism is further provided between adjacent stacked containers. The positioning mechanism and the rotating locking mechanism are located at the two ends of the mating surfaces of the two mating containers. The positioning mechanism includes a positioning card, a convex rib and a suspended lip. The positioning card and the convex rib are located on two adjacent containers that fit with each other. The suspended lip is fixed on the convex rib. There is a gap between the suspended lip and the surface of the container that can accommodate the positioning card. The rotating locking mechanism connects the two containers by rotating the two containers that participate in the mating. At this time, the two containers have only one connection point, and the connection is not stable. For this purpose, a positioning mechanism can be added and the rotating locking mechanism and the positioning mechanism are both offset. In this way, the two mating containers rotate around the rotating locking mechanism. When the other end reaches the positioning mechanism, the positioning card contacts or locks with the convex rib and the suspended lip to form another connection point. The two-point connection makes the connection of the two mating containers more stable.

[0009] Preferably, the convex rib is in an arc shape, and a guide arc surface is provided on the outer convex side of the rib. The positioning card includes a positioning plate body and a lower convex portion of the positioning card plate. The lower convex portion of the positioning card plate is fixed to the bottom of the positioning plate body. The edges of each side of the positioning plate body exceed the circumference of the lower convex portion of the positioning card plate. A relative concave arc surface is provided on the circumference of the lower convex portion of the positioning card plate. The side edge of the positioning plate body abuts against the guide arc surface, and the concave arc surface abuts against the free end of the suspended lip. Through the cooperation between the positioning plate body and the guide arc surface, and the concave arc surface and the suspended lip, the convex rib and the suspended lip both form a guide for the positioning card, further limiting the relative rotation movement path between the two matched containers. The cooperation between the positioning plate body and the guide arc surface, or between the concave arc surface and the suspended lip, can be slightly interference, which increases the matching force of the two containers at the positioning mechanism, better prevents dislocation, and improves the connection stability between the two matched containers.

[0010] As a preferred embodiment, the card plate and the positioning card plate have the same shape, so that the card plate and the positioning card plate can be universal, thereby reducing the types of parts and making production more convenient.

[0011] Alternatively, a rotating shaft is provided at the center of the rotating groove, and an axial hole is provided at the center of the card plate, and the rotating shaft is adapted to be inserted into the axial hole. This structure can also ensure that the card plate rotates completely in the rotating groove, and the path of the two containers participating in the relative rotation is accurately limited.

[0012] Alternatively, a shaft hole is provided at the center of the rotating groove, a rotating shaft is provided at the center of the card plate, and the rotating shaft is inserted into the shaft hole. This structure can also ensure that the card plate rotates completely in the rotating groove, and the path of the two containers participating in the relative rotation is accurately defined.

[0013] Preferably, the bottom of the rotating groove is also provided with a buckle forming through hole, and the buckle forming through hole corresponds to the position of the lip buckle. Under normal circumstances, the lip buckle is integrally formed with the container shell, so that the production process is relatively simple. The lip buckle is roughly parallel to the container shell, so as to prevent the card plate from vertically escaping from the gap between the lip buckle and the container surface. Since the position of the lip buckle overlaps with the container surface, the molding of the container surface cannot be completed by using the ordinary mold opening and closing processing method, and the container surface must be generated by using a mold with a slider and a core pulling processing method. The buckle forming through hole corresponding to the position of the lip buckle is set for the protruding profile corresponding to the lip buckle on the mold to move forward and backward. In this way, when processing the container surface with the mold, the molding of the container surface can be completed by normal opening and closing operations, without the use of a mold with a slider, and without the core pulling step. In this way, the complexity of the production mold can be increased without adding accessories and grooves, thereby effectively controlling the production cost.

[0014] The beneficial effects of the present invention are:

[0015] Improve the convenience of using the storage tool. The rotary locking mechanism in the present invention can give the container more expansion functions, facilitate the connection and combination of more containers, and can be continuously stacked, connected and expanded as needed to form a composite storage device with larger capacity and finer classification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of the present invention;

[0017] Figure 2 A schematic diagram of a split structure of the present invention;

[0018] Figure 3 A schematic diagram of the structure of the bottom of the main container in the present invention;

[0019] Figure 4 It is a schematic diagram of the working state of the rotation locking mechanism and the positioning mechanism when two main containers are stacked and locked in the present invention;

[0020] Figure 5 It is a structural schematic diagram of the card board in the present invention;

[0021] Figure 6 It is a structural schematic diagram of the card board in the present invention from another perspective;

[0022] Figure 7 It is a structural schematic diagram of the positioning card plate in the present invention;

[0023] Figure 8 It is a schematic diagram of the working state of the rotary locking mechanism on the sub-container when the containers are stacked and locked according to the present invention;

[0024] Fig. 9It is a schematic diagram of the state when the clamping plate is embedded in the rotating groove in the present invention;

[0025] Fig.10 Another structural schematic diagram of the present invention;

[0026] Fig.11 Another structural schematic diagram of the bottom of the main container in the present invention;

[0027] Fig.12 It is a schematic diagram of another working state of the rotation locking mechanism and the positioning mechanism when two main containers are stacked and locked in the present invention.

[0028] In the figure, 1-main container, 2-sub-container, 3-rotating groove, 301-lip-shaped buckle, 302-limiting block, 3021-limiting retaining edge, 303-buckle forming through hole, 4-clip plate, 401-plate body, 402-lower convex part, 403-convex arc surface, 5-positioning clip plate, 501-positioning plate body, 502-positioning clip plate lower convex part, 503-concave arc surface, 6-convex rib, 601-guide arc surface, 7-suspended lip, 8-suspended lip forming through hole, 9-support foot. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to specific embodiments of the accompanying drawings.

[0030] Embodiment 1:

[0031] like Figures 1 to 9As shown, a container stacking structure includes four containers with top and bottom surfaces and can be stacked, and a container injection molding tool box. The container includes two main containers 1 and two sub-containers 2, the sub-containers 2 are smaller than the main container 1, and the length of the sub-container 2 is equal to the width of the main container 1. A support foot 9 is provided at the bottom of each container, and a clamping plate 4 is fixed on the top surface of the main container 1 and the sub-container 2 by screws. A rotating groove 3 is provided on the bottom surface of the main container 1 and the sub-container 2, and a lip-shaped buckle 301 that can overlap with the two ends of the clamping plate 4 is provided on the inner wall of the rotating groove 3, and the clamping plate 4 can rotate in the rotating groove 3. The inner wall of the rotating groove 3 is an arc shape, and the groove wall of the rotating groove 3 is an oblong ring and protrudes from the bottom surface of the container. The height of the groove wall is equal to or slightly less than the height of the support foot 9. In the two adjacent containers participating in the stacking, the rotating groove 3 of the upper container and the clamping plate 4 on the lower container constitute a rotation locking mechanism, and the two containers in stacking contact are connected by the rotation locking mechanism. A pair of trapezoidal limit blocks 302 are also provided on the inner wall of the rotating groove 3. The two limit blocks 302 are positioned opposite to each other and are spaced apart from the lip-shaped buckle 301, so that the rotating area of ​​the card plate 4 in the rotating groove 3 is gourd-shaped. The limit blocks 302 are provided with limit retaining edges 3021 that can abut against the side edges of the card plate 4. When the card plate 4 abuts against the limit blocks 302, the side edges at the opposite ends of the card plate 4 respectively abut against the limit retaining edges 3021 on the two opposite limit blocks 302. The clamping plate 4 includes a plate body 401 and a lower convex portion 402. The lower convex portion 402 is approximately oval and is integrally arranged at the bottom of the plate body 401. When the clamping plate 4 is fixed on the surface of the container, the bottom end of the lower convex portion 402 fits the surface of the container so that the edge of the plate body 401 is suspended. The edges of the plate body 401 exceed the circumference of the lower convex portion 402. The two ends of the circumference of the lower convex portion 402 are provided with opposite convex arc surfaces 403. The convex arc surfaces 403 abut against the free end surface of the lip-shaped buckle 301, and the end of the plate body 401 abuts against the inner wall of the rotating groove 3. A positioning clamping plate 5 is also provided on the top surface of each main container 1. The positioning clamping plate 5 is parallel to the clamping plate 4. A convex rib 6 and a suspended lip piece 7 are also provided on the bottom surface of each main container 1. The suspended lip piece 7 is integrally arranged on the convex rib 6. There is a gap between the suspended lip piece 7 and the bottom surface of the container where it is located to accommodate the positioning clamping plate 5. Between the two main containers 1 involved in stacking, the positioning clamp 5 on the lower main container 1 and the convex rib 6 and suspended lip 7 of the upper main container 1 form a positioning mechanism. The clamp 4 and the positioning clamp 5 on the main container 1 are located at both ends of the top surface of the main container 1, and the rotating groove 3 and the convex rib 6 on the main container 1 are also located at both ends of the bottom surface of the main container 1, so that the positioning mechanism and the rotating locking mechanism are located at both ends of the mating surfaces of the two mating containers.The convex rib 6 is arc-shaped, and a guide arc surface 601 is provided on the outer convex side of the convex rib 6. The positioning card plate 5 includes a positioning plate body 501 and a positioning card plate lower protrusion 502. The positioning card plate lower protrusion 502 is integrally arranged at the bottom of the positioning plate body 501. The edges of each side of the positioning plate body 501 exceed the circumference of the positioning card plate lower protrusion 502. The circumference of the positioning card plate lower protrusion 502 is provided with opposite concave arc surfaces 503 on both sides. The side edges of the positioning plate body 501 are against the guide arc surface 601, and the concave arc surface 503 is against the free end of the suspended lip piece 7. There is a slight interference fit between the concave arc surface 503 and the free end of the suspended lip piece 7. The card plate 4 has the same shape as the positioning card plate 5. The bottom of the rotating groove 3 is also provided with a buckle forming through hole 303, and the buckle forming through hole 303 corresponds to the position of the lip-shaped buckle 301. Similarly, a suspended lip forming hole 8 is also provided on the main container 1 shell at the positioning mechanism, and the suspended lip forming hole corresponds to the suspended lip 7. The rotation groove 3 of the sub-container 2 is located at the center of the bottom surface, and the clamping plate 4 of the sub-container 2 is located at the center of the top surface. There is no positioning mechanism between the main container 1 and the sub-container 2, and they are only connected by the rotation locking mechanism.

[0032] The two main containers 1 are stacked first, and then the two sub-containers 2 are stacked side by side on the top surface of the upper main container 1. After the two main containers 1 are stacked, the card plate 4 is inserted into the rotating groove 3, and any main container 1 is rotated while the other main container 1 is stabilized, so that the two containers participating in the cooperation rotate relative to each other. After the card plate 4 rotates 90° in the rotating groove 3, the two ends of the card plate 4 overlap with the lip buckle 301. In this way, the card plate 4 is blocked by the inner wall of the rotating groove 3 in the tangential direction, and the card plate 4 is blocked by the lip buckle 301 in the vertical direction, so the card plate 4 cannot be separated from the rotating groove 3. Through the locking of the lip buckle 301 and the card plate 4, a reliable connection is formed between the two participating containers. One end of a container rotates around the rotating locking mechanism, and the other end also swings. When it reaches the positioning mechanism, the positioning card plate 5 contacts and locks with the convex rib 6 and the suspended lip 7. The slight interference fit between the concave arc surface 503 and the free end of the suspended lip 7 can generate a rotation resistance between the matched containers, so that the two matched containers form a stable connection. The containers are stacked and combined to form a large-capacity, multi-partition storage device.

[0033] Embodiment 2:

[0034] The clamping plate 4 is fixed to the bottom surface of the main container 1 and the sub-container 2 by screws, and the rotating groove 3 is provided on the top surface of the main container 1 and the sub-container 2. In the two adjacent containers participating in the matching, the clamping plate 4 of the upper container and the rotating groove 3 on the lower container constitute the rotation locking mechanism. The rest is the same as in Example 1.

[0035] Embodiment 3:

[0036] like Figures 10 to 12As shown, the container includes two main containers 1. The groove wall of the rotating groove 3 is composed of two opposite arc segments, a gap is left between the two arc segments, and no limit block is provided. A rotating shaft is provided at the center of the rotating groove 3, and an axial hole is provided at the center of the clamping plate 4, and the rotating shaft is adapted to be inserted into the axial hole. The rest is the same as in Example 1.

[0037] Embodiment 4:

[0038] A shaft hole is provided at the center of the rotating groove 3, a rotating shaft is provided at the center of the clamping plate 4, and the rotating shaft is inserted into the shaft hole.

Claims

1. A container stacking structure, characterized in that The invention comprises a plurality of stackable containers, wherein the stacked containers are connected by a rotation locking mechanism, wherein the rotation locking mechanism comprises a rotation groove (3) and a card plate (4) which can rotate in the rotation groove (3), wherein the inner wall of the rotation groove (3) is provided with a lip-shaped buckle (301) which can overlap with two ends of the card plate (4), wherein the rotation groove (3) and the card plate (4) are respectively provided on two adjacent containers which match each other, and a positioning mechanism is further provided between the adjacent stacked containers, wherein the positioning mechanism and the rotation locking mechanism are respectively provided at two ends of the matching surfaces of the two matching containers, wherein the positioning mechanism comprises a positioning card plate (5), a convex rib (6) and a suspended lip piece (7), wherein the positioning card plate (5) and the convex rib (6) are respectively provided on two adjacent containers which match each other, wherein the suspended lip piece (7) is fixed on the convex rib (6), and a gap is provided between the suspended lip piece (7) and the surface of the container in which the positioning card plate (5) can be embedded.

2. The container stacking structure according to claim 1, characterized in that A pair of limit blocks (302) are also provided on the inner wall of the rotating groove (3), each pair of limit blocks (302) are positioned opposite to each other and are spaced apart from the lip-shaped buckle (301), and the limit blocks (302) are provided with limit edges (3021) that can abut against the side edges of the clamping plate (4), and when the clamping plate (4) abuts against the limit blocks (302), the side edges at opposite ends of the clamping plate (4) respectively abut against the limit edges (3021) on the two opposite limit blocks (302).

3. The container stacking structure according to claim 2, characterized in that The inner wall of the rotating groove (3) is in an arc shape. The clamping plate (4) comprises a plate body (401) and a lower convex portion (402). The lower convex portion (402) is fixed to the bottom of the plate body (401). The edges of each side of the plate body (401) extend beyond the circumference of the lower convex portion (402). The circumference of the lower convex portion (402) is provided with a corresponding convex arc surface (403). The convex arc surface (403) abuts against the free end surface of the lip-shaped buckle (301). The end of the plate body (401) abuts against the inner wall of the rotating groove (3).

4. The container stacking structure according to claim 1, characterized in that The container comprises a main container (1) and a sub-container (2), wherein the sub-container (2) is smaller than the main container (1).

5. The container stacking structure according to claim 1, characterized in that The convex rib (6) is arc-shaped, and a guide arc surface (601) is provided on the outer convex side of the convex rib (6). The positioning clamping plate (5) comprises a positioning plate body (501) and a positioning clamping plate lower convex portion (502). The positioning clamping plate lower convex portion (502) is fixed to the bottom of the positioning plate body (501). The edges of each side of the positioning plate body (501) extend beyond the peripheral surface of the positioning clamping plate lower convex portion (502). A corresponding concave arc surface (503) is provided on the peripheral surface of the positioning clamping plate lower convex portion (502). The side edge of the positioning plate body (501) abuts against the guide arc surface (601), and the concave arc surface (503) abuts against the free end of the suspended lip piece (7).

6. The container stacking structure according to claim 5, characterized in that The clamping plate (4) and the positioning clamping plate (5) have the same shape.

7. The container stacking structure according to claim 1, characterized in that A rotating shaft is provided at the center of the rotating groove (3), and an axis hole is provided at the center of the clamping plate (4), and the rotating shaft is adapted to be inserted into the axis hole.

8. The container stacking structure according to claim 1, characterized in that A shaft hole is provided at the center of the rotating groove (3), and a rotating shaft is provided at the center of the clamping plate (4), and the rotating shaft is adapted to be inserted into the shaft hole.

9. The container stacking structure according to any one of claims 1 to 8, characterized in that A buckle forming through hole (303) is also provided at the bottom of the rotating groove (3), and the buckle forming through hole (303) corresponds to the position of the lip-shaped buckle (301).

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