Folding plastic storage container with detachable bottom and multi-layer folding plastic storage cabinet

Abstract

The utility model provides a folding plastic storage container with a detachable bottom and a multi-layer folding plastic storage cabinet, and belongs to the technical field of storage. The folding plastic storage container solves the problem that an existing folding plastic storage container is high in investment cost and manufacturing cost. The folding plastic storage container with the detachable bottom comprises a side wall and a bottom wall, the side wall is of an integrated structure and is provided with a plurality of strip-shaped thin-wall areas, the thin-wall areas are arranged in the height direction, thick-wall areas are arranged between the adjacent thin-wall areas, and the wall thickness of the thin-wall areas is smaller than that of the thick-wall areas; an upper positioning groove is formed in the outer edge part of the bottom wall, the bottom edge part of the side wall is embedded into the upper positioning groove, and the bottom wall and the side wall are fixedly connected through a plurality of groups of locking structures; the side wall can be in a folded state by bending the thin-wall area. Only one set of plastic mold is needed for producing the side walls of the plastic storage container and the multi-layer folding plastic storage cabinet, so that the manufacturing cost of the plastic mold needed for producing the side walls is reduced, assembling procedures are reduced, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of storage, and relates to a folding storage container, in particular to a folding plastic storage container with a detachable bottom.

[0002] The utility model belongs to the technical field of storage, and relates to a folding storage container, in particular to a multi-layer folding plastic storage cabinet. BACKGROUND

[0003] Folding storage containers made of plastic are common containers in people's daily life, such as foldable storage boxes and multi-layer folding storage cabinets.

[0004] There are many related documents about folding storage containers, such as the storage box door lock structure and the folding storage box (application number 202122210344.3) and the foldable storage box and the storage cabinet stacked by the storage box (application number 202320533298.7) recorded in Chinese patent documents. These folding storage containers not only can be unfolded to realize the storage function, but also can be folded to reduce the packaging volume. However, there are still some deficiencies. When these folding storage containers are made of plastic, there are many parts and many molds for manufacturing the parts, which has the problems of high investment cost and high manufacturing cost. SUMMARY

[0005] The utility model provides a folding plastic storage container with a detachable bottom, and the technical problem to be solved by the utility model is how to reduce the investment and manufacturing cost of the folding plastic storage container.

[0006] The utility model provides a multi-layer folding plastic storage cabinet, and the technical problem to be solved by the utility model is how to reduce the investment and manufacturing cost of the multi-layer folding plastic storage cabinet.

[0007] The technical problem to be solved by the utility model can be realized through the following technical scheme: a folding plastic storage container with a detachable bottom, comprising a side wall and a bottom wall, the storage container has an upper opening, the side wall is of an integral structure, the side wall has a plurality of thin-walled areas in the form of strips, the thin-walled areas are arranged along the height direction, the adjacent thin-walled areas are thick-walled areas, the wall thickness of the thin-walled areas is smaller than that of the thick-walled areas; the outer edge part of the bottom wall is provided with an upper positioning groove, the bottom edge part of the side wall is embedded into the upper positioning groove, the bottom wall and the side wall are further fixedly connected through a plurality of locking structures; when the bottom wall and the side wall are in a separated state, the side wall can be in a folded state by bending the thin-walled areas.

[0008] The bottom wall and the side wall are fixedly connected between each other in the unfolded state of the folding plastic storage container, thereby forming an effective storage space; the embedding of the side wall into the upper positioning groove not only improves the consistency of the installation position during repeated disassembly and assembly, improves the convenience of installation, but also reduces the deformation range of the side wall, improves the connection strength, and especially improves the carrying capacity of the plastic storage container, so that the plastic storage container is suitable for storing more types of articles. The locking structure is unlockable, and the side wall and the bottom wall are separated by unlocking, and then the side wall can be folded, thereby reducing the packaging volume of the plastic storage container.

[0009] A multi-layer folding plastic storage cabinet comprises a plurality of groups of bottom detachable folding plastic storage containers arranged in a stacked manner, the folding plastic storage container comprises a side wall and a bottom wall, the storage container has an upper opening, the side wall is of an integral structure, the side wall has a plurality of strip-shaped thin-wall regions arranged along the height direction, the adjacent thin-wall regions are thick-wall regions, the wall thickness of the thin-wall region is smaller than that of the thick-wall region; the outer edge of the bottom wall is provided with an upper positioning groove, the bottom edge of the side wall is embedded into the upper positioning groove, and the bottom wall and the side wall are further fixedly connected through a plurality of locking structures; the side wall can be in a folded state by bending the thin-wall region when the bottom wall and the side wall are in a separated state.

[0010] The bottom wall between the upper and lower adjacent side walls is referred to as an upper and lower connecting bottom wall, and the outer edge of the upper and lower connecting bottom wall is provided with a lower positioning groove, and the top edge of the side wall is embedded into the lower positioning groove.

[0011] When the multi-layer folding plastic storage cabinet is in an unfolded and stacked state, the side wall of the next layer of folding plastic storage container is embedded into the lower positioning groove of the bottom wall of the previous layer of folding plastic storage container, which not only improves the consistency of the installation position during repeated stacking, improves the convenience of installation, but also further reduces the deformation range of the side wall, improves the connection strength, and especially improves the carrying capacity of the folding plastic storage cabinet, so that the folding plastic storage cabinet is suitable for storing more types of articles.

[0012] Compared with the prior art, the side wall of the plastic storage container and the multi-layer folding plastic storage cabinet is of an integral structure, so that only one set of plastic mold is needed to produce the side wall, which not only reduces the manufacturing cost of the plastic mold needed for producing the side wall, i.e. reduces the investment cost of the plastic storage container, but also improves the production efficiency of the side wall; in terms of the factory packaging state, the existing folding storage box and folding storage cabinet need to assemble each side wall with the bottom wall, while the plastic storage container and the multi-layer folding plastic storage cabinet of the present application do not need to assemble the side wall with the bottom wall together, but can be stacked with the side wall in a folded state and the bottom wall, which significantly reduces the assembly process and the manufacturing cost.

[0013] As a preferred embodiment, the thick-wall region of the side wall is inwardly folded and extended at the bottom edge to form a lower reinforcing edge.

[0014] As a preferred embodiment, the thick-wall region of the side wall is outwardly folded and extended at the top edge to form an upper reinforcing edge.

[0015] As preferred, the upper positioning groove is annularly closed, and the bottom edge of the side wall is embedded in the upper positioning groove.

[0016] As preferred, the locking structure comprises a latch connected with the bottom wall in sliding mode, the lower reinforcing rib has an abutting section for connecting with the latch, and the lower side of the latch is in contact with the top surface of the abutting section or the latch is separated from the side wall by sliding the latch.

[0017] As preferred, the locking structure comprises a buckle connected with the bottom wall in rotating mode, the buckle has a clamping groove, and the side wall has a clamping column matched with the clamping groove, and the clamping column is embedded in the clamping groove or separated from the clamping groove by rotating the buckle.

[0018] As preferred, the bottom wall is connected with a plurality of clamping members in rotating mode, the clamping member has a clamping head abutting on the bottom surface of the upper reinforcing rib, and the clamping head is swung to the outside of the upper reinforcing rib by rotating.

[0019] As preferred, the side wall is provided with a taking and placing opening.

[0020] As preferred, the multi-layered folding plastic storage cabinet further comprises a cover, and the cover is arranged at the opening of the uppermost folding plastic storage container. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective structural schematic view of the plastic storage container in Example 1.

[0022] Figure 2 is an exploded structural schematic view of the plastic storage container in Example 1.

[0023] Figure 3 is a bottom view structural schematic view of the plastic storage container in Example 1.

[0024] Figure 4 is Figure 3 is a sectional view structural schematic view of A-A in Example 1.

[0025] Figure 5 is Figure 4 is a local enlarged view of B in Example 1.

[0026] Figure 6 is a perspective structural schematic view of the side wall of the plastic storage container in the folding state in Example 1.

[0027] Figure 7 is a perspective structural schematic view of the multi-layered folding plastic storage cabinet in Example 2.

[0028] Figure 8 is a bottom view structural schematic view of the multi-layered folding plastic storage cabinet in Example 2.

[0029] Figure 9 is Figure 8 is a sectional view of the C-C in the middle of the plastic storage container.

[0030] Figure 10 is Figure 9 is a partial enlarged view at D in the middle of the plastic storage container.

[0031] Figure 11 is a perspective view of the plastic storage container in Embodiment Three.

[0032] Figure 12 is a bottom view of the plastic storage container in Embodiment Three.

[0033] Figure 13 is a sectional view of the E-E in the middle of the plastic storage container. Figure 12

[0034] is a perspective view of the multi-layered folded plastic storage cabinet in Embodiment Two. Figure 14

[0035] In the figure, 1, side wall; 1a, thin wall area; 1b, thick wall area; 1c, taking and placing opening; 1d, clamping column part; 11, lower reinforcing edge; 11a, abutting section; 12, upper reinforcing edge; 2, bottom wall; 2a, upper positioning groove; 2b, lower positioning groove; 21, upper and lower connecting bottom wall; 3, upper open mouth; 4, bolt; 5, clamping piece; 5a, clamping head; 6, cover; 7, buckle; 7a, clamping groove. DETAILED DESCRIPTION

[0036] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] ​In this utility model, unless otherwise explicitly 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 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly 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.

[0040] 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.

[0041] Example 1: As Figures 1 to 7 As shown, a foldable plastic storage container with a detachable bottom includes a side wall 1 and a bottom wall 2, and the storage container has an upper opening 3.

[0042] The sidewall 1 is a one-piece structure, having multiple thin-walled regions 1a arranged in strips along its height. Adjacent thin-walled regions 1a are separated by thick-walled regions 1b, with the wall thickness of the thin-walled regions 1a being less than that of the thick-walled regions 1b. The accompanying drawings show the sidewall 1 in its unfolded state as a frustum of a square pyramid, its taper designed to improve the smoothness of demolding from the plastic mold. The sidewall 1 includes two large sidewall regions 1 and two small sidewall regions 1, connected to the large sidewall regions 1 by thin-walled regions 1a. Each small sidewall region 1 also contains a thin-walled region 1a. When the sidewall 1 is folded, the distance between the two large sidewall regions 1 decreases, and both small sidewall regions 1 fold inwards. Figure 6 As shown.

[0043] The bottom edge of the thick wall area 1b of the side wall 1 is inwardly folded to form a lower reinforcing edge 11; the top edge of the thick wall area 1b of the side wall 1 is outwardly folded to form an upper reinforcing edge 12; the structure not only improves the strength of the bottom edge area and the top edge area of the side wall 1, but also ensures smooth demolding of the side wall 1.

[0044] The outer edge of the bottom wall 2 is provided with an upper positioning groove 2a, which is annularly closed, so that the bottom edge of the side wall 1 is embedded in the upper positioning groove 2a, and the lower reinforcing edge 11 also increases the width of the bottom edge of the side wall 1, thereby increasing the contact area between the side wall 1 and the bottom wall 2 and improving the connection stability between the side wall 1 and the bottom wall 2.

[0045] The bottom wall 2 and the side wall 1 are also fixedly connected through a plurality of locking structures, and the number of the locking structures is 4 as shown in the drawings, which can be increased or decreased according to actual conditions. The locking structure includes a bolt 4 in sliding connection with the bottom wall 2, and the lower reinforcing edge 11 has an abutting section 11a for connecting with the bolt 4.

[0046] As shown in Figures 1 to 6 , the folded plastic storage container is in an unfolded state, the bottom edge of the side wall 1 is embedded in the upper positioning groove 2a, and the lower side of the bolt 4 is in contact with the top surface of the abutting section 11a of the lower reinforcing edge 11, that is, the abutting section 11a is used to limit the downward movement of the bolt 4 and the bottom wall 2 relative to the side wall 1, so that the bottom wall 2 can bear a certain amount of weight. The process of switching from the unfolded state to the folded state is to first move the bolt 4 to separate the bolt 4 from the lower reinforcing edge 11; then move the bottom wall 2 and the side wall 1 up and down to separate them; finally, push the middle area of the two small side wall 1 areas towards the inner cavity, force the two small side wall 1 areas to fold inward, and force the distance between the two large side wall 1 areas to decrease until completely folded. The process of switching from the folded state to the unfolded state is to first pull the two large side wall 1 areas outward, increase the distance between the two large side wall 1 areas, then embed the bottom edge of the side wall 1 in the upper positioning groove 2a, and finally move the bolt 4 in the opposite direction to make the bolt 4 in contact with the abutting section 11a of the lower reinforcing edge 11.

[0047] Example two: as Figures 7 to 10As shown, a multi-layer folding plastic storage cabinet includes multiple sets of folding plastic storage containers with removable bottoms, stacked vertically. The structure and principle of these multiple folding plastic storage containers are basically the same as those of the folding plastic storage container with removable bottoms described in Embodiment 1. The similarities will not be repeated here; only the differences will be described. The difference lies in the bottom wall 2 located between two adjacent side walls 1, referred to as the upper and lower connecting bottom wall 21. The outer edge of the upper and lower connecting bottom wall 21 is provided with a lower positioning groove 2b, which is annularly closed. This ensures that the top edge of the side wall 1 is fully embedded in the upper positioning groove 2a. The upper reinforcing edge 12 also increases the width of the bottom edge of the side wall 1, thereby increasing the contact area between the side wall 1 and the bottom wall 2 and improving the connection stability between the bottom wall 2 and the side wall 1.

[0048] Preferably, an access port 1c is provided in the large sidewall 1 area of ​​the sidewall 1. Multiple snap-fit ​​members 5 are rotatably connected to the bottom wall 2, each snap-fit ​​member 5 having a snap-fit ​​portion 5a that abuts against the bottom surface of the upper reinforcing edge 12. Figures 7 to 10 As shown, when the snap-fit ​​connector 5a abuts against the bottom surface of the upper reinforcing edge 12, it prevents the two adjacent sets of folding plastic storage containers from naturally falling off and separating, thereby improving the strength of the multi-layer folding plastic storage cabinet. By rotating the snap-fit ​​connector 5, the snap-fit ​​connector 5a can swing to the outside of the upper reinforcing edge 12, thereby allowing the two adjacent sets of folding plastic storage containers to separate.

[0049] The multi-layer folding plastic storage cabinet also includes a lid 6, which is located at the opening of the top folding plastic storage container. The lid 6 also has a positioning groove, and the top edge of the side wall 1 is embedded in the positioning groove. The lid 6 also has a snap-fit ​​5, which abuts against the upper reinforcing edge 12.

[0050] Example 3: Figures 11 to 13 As shown, the structure and principle of this embodiment are basically the same as those of the detachable foldable plastic storage container described in Embodiment 1. The similarities will not be repeated here; only the differences will be described, namely the locking structure. The locking structure includes a buckle 7 rotatably connected to the bottom wall 2. The buckle 7 has a snap-fit ​​groove 7a, and the side wall 1 has a snap-fit ​​post 1d that matches the snap-fit ​​groove 7a. By rotating the buckle 7, the snap-fit ​​post 1d can be inserted into or disengaged from the snap-fit ​​groove 7a. That is, when the snap-fit ​​post 1d is inserted into the snap-fit ​​groove 7a, the bottom wall 2 and the side wall 1 are fixedly connected; when the snap-fit ​​post 1d is disengaged from the snap-fit ​​groove 7a, the bottom wall 2 and the side wall 1 can also be separated.

[0051] Example 4: Figure 14 As shown, the structure and principle are basically the same, and the similarities will not be described again. Only the differences will be described. The difference is that the locking structure of the foldable plastic storage container adopts the structure and principle described in Example 3.

Claims

1. A bottom detachable folding plastic storage container comprising side walls (1) and a bottom wall (2), the storage container having an upper opening (3), characterized in that, The side wall (1) is of an integral structure, the side wall (1) has a plurality of strip-shaped thin-wall areas (1a), the thin-wall areas (1a) are arranged along the height direction, the adjacent thin-wall areas (1a) are thick-wall areas (1b), the wall thickness of the thin-wall areas (1a) is smaller than that of the thick-wall areas (1b); the outer edge portion of the bottom wall (2) is provided with an upper positioning groove (2a), the bottom edge portion of the side wall (1) is embedded into the upper positioning groove (2a), the bottom wall (2) and the side wall (1) are further fixedly connected through a plurality of locking structures; when the bottom wall (2) and the side wall (1) are in a separated state, the side wall (1) can be in a folded state by bending the thin-wall areas (1a).

2. The bottom-removable, folding plastic storage container of claim 1, wherein, The bottom edge of the thick-wall area (1b) of the side wall (1) is inwardly folded to form a lower reinforcing edge (11).

3. The bottom-removable, folding plastic storage container of claim 2, wherein, The upper positioning groove (2a) is annularly closed, and the bottom edge portion of the side wall (1) is embedded into the upper positioning groove (2a) in the whole circumference.

4. The bottom-removable and foldable plastic storage container according to claim 2 or 3, wherein, The locking structure comprises a bolt (4) in sliding connection with the bottom wall (2), the lower reinforcing edge (11) has an abutting section (11a) for connecting with the bolt (4), the lower side of the bolt (4) is in contact with the top surface of the abutting section (11a) or the bolt (4) is separated from the side wall (1) by sliding the bolt (4).

5. The bottom detachable folding plastic storage container according to claim 1 or 2 or 3, wherein, The locking structure comprises a buckle (7) in rotational connection with the bottom wall (2), the buckle (7) has a clamping groove (7a), the side wall (1) has a clamping column portion (1d) matched with the clamping groove (7a), the clamping column portion (1d) is embedded into the clamping groove (7a) or the clamping column portion (1d) is separated from the clamping groove (7a) by rotating the buckle (7).

6. A multi-tiered folding plastic storage cabinet comprising a plurality of sets of folding plastic storage containers stacked one on top of another, characterized in that, The folding plastic storage container is the folding plastic storage container with a detachable bottom as claimed in any one of claims 1 to 5; the bottom wall (2) between the upper and lower adjacent side walls (1) is referred to as an upper and lower connecting bottom wall (21), the outer edge portion of the upper and lower connecting bottom wall (21) is provided with a lower positioning groove (2b), and the top edge portion of the side wall (1) is embedded into the lower positioning groove (2b).

7. The multi-tiered folding plastic storage cabinet of claim 6, wherein, The top edge of the thick-wall area (1b) of the side wall (1) is outwardly folded to form an upper reinforcing edge (12).

8. The multi-tiered folding plastic storage cabinet of claim 7, wherein, A plurality of clamping members (5) are rotatably connected to the bottom wall (2), the clamping members (5) have clamping head portions (5a) abutting on the bottom surface of the upper reinforcing edge (12); the clamping head portions (5a) are swung to the outside of the upper reinforcing edge (12) by rotation.

9. The multi-tiered folding plastic storage cabinet of claim 6 or 7 or 8, wherein, A taking and placing opening (1c) is formed in the side wall (1).

10. The multi-tiered folding plastic storage cabinet of claim 6 or 7 or 8, wherein, The multi-layer folding plastic storage cabinet further comprises a cover (6) arranged at the opening of the uppermost folding plastic storage container.

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