Container

Abstract

The invention discloses a container which comprises a base, a first side plate, a second side plate, a pair of third side plates and a partition piece, the first side plate is connected to the base in a stacked mode, and the first side plate is located on the top face of the base in a folded state. The second side plate and the first side plate are oppositely arranged, the second side plate is connected to the base in a foldable mode, and in the folded state, the second side plate is arranged on the top face of the first side plate in an overlapped mode. The third side plate is connected to the base in a foldable mode, and in the folded state, the third side plate is arranged on the top face of the second side plate in an overlapped mode. The partition piece is located between the base and the first side plate, and a containing space is formed between the first side plate and the base.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics and transportation, and in particular to a container. Background Art

[0002] Collapsible containers can be folded to significantly reduce space when empty, offering cost advantages for tight spaces and return logistics. Compared to non-collapsible containers, they offer significant advantages, leading to a growing number of industries seeking to replace them with collapsible containers. For example, in the liquid packaging sector, collapsible containers are gradually replacing integrated ton barrels. A collapsible container typically consists of a base, two pairs of side panels, and a lid. One of the side panels also has a small door that opens outward, making it easier for workers to bend over and enter the container to perform certain operations. When the container is folded, the side panels that fold first lie roughly flat against the base's bearing surface. The remaining side panels then fold in sequence and lie roughly flat against each other, forming a folded state with unchanged length and width and reduced height. This occupies a smaller volume, resulting in various benefits in logistics and warehousing.

[0003] Since a smaller folded volume brings greater savings, the structure of a foldable container is often designed so that the overlapping gap between the folded side panels and the adjacent folded side panels or base is as small as possible. This will bring some other inconveniences. For example, some foldable containers that require the use of a heating plate need to remove the heating plate after use before the box body can be folded, or the safety performance of the heating plate must be sacrificed to minimize the thickness of the heating plate so that it can be folded with the heating plate. Summary of the Invention

[0004] The object of the present invention is to provide a container to solve the problems of the prior art.

[0005] To solve the above technical problems, an embodiment of the present invention provides a container, comprising:

[0006] base;

[0007] A first set of side panels, the first set of side panels comprising:

[0008] a first side panel stackably connected to the base, and

[0009] a second side panel, the second side panel being disposed opposite to the first side panel and foldably connected to the base;

[0010] a second set of side panels, the second set of side panels including a pair of oppositely disposed third side panels, the third side panels being foldably connected to the base;

[0011] In the folded state, the first set of side panels are stacked on the top surface of the base, and the second set of side panels are stacked on the top surface of the first set of side panels;

[0012] A barrier member is located between the base and the first group of side panels, and forms an accommodating space between the first group of side panels and the base.

[0013] In one embodiment, the barrier is a spacer bar located between the first set of side panels and the base.

[0014] In one embodiment, the spacer is connected to a top surface of the base.

[0015] In one embodiment, the base includes a pair of oppositely disposed first sides and a pair of oppositely disposed second sides;

[0016] The first side panel and the second side panel are respectively connected to a pair of the first side edges;

[0017] A pair of the third side panels are respectively connected to a pair of the second side edges;

[0018] The two spacers are respectively close to a pair of the second side edges of the base.

[0019] In one embodiment, the spacer is connected to an inner side surface of the first side panel or the second side panel.

[0020] In one embodiment, the two spacers are respectively adjacent to the two third side panels.

[0021] In one embodiment, the barrier is a step provided on the top surface of the base.

[0022] In one embodiment, the two steps are located on two opposite side edges of the base and on the same side as the two third side panels.

[0023] In one embodiment, in the folded state, the first side panel is stacked on the top surface of the base, and the second side panel is stacked on the top surface of the first side panel;

[0024] The first side plate is provided with a first clamping portion, and the first clamping portion is clamped with the two third side plates;

[0025] The inner side surface of the first engaging portion extends beyond the inner side surface of the first side plate;

[0026] The barrier member is a portion of the inner side surface of the first engaging portion that extends beyond the inner side surface of the first side plate.

[0027] In one embodiment, the second side plate is provided with a second clamping portion, and the second clamping portion is clamped with the two third side plates.

[0028] In one embodiment, the shape of the second engaging portion is the same as that of the first engaging portion.

[0029] In one embodiment, the outer side surface of the first engaging portion is provided with a recessed slot;

[0030] The third side plate is provided with a clamping block for clamping with the clamping slot.

[0031] The first side plate is provided with a first clamping portion, and the first clamping portion is clamped with the two third side plates;

[0032] The inner side surface of the first engaging portion extends beyond the inner side surface of the first side plate;

[0033] The second side plate is provided with a second clamping portion, and the second clamping portion is clamped with the two third side plates;

[0034] The inner side surface of the second engaging portion extends inwardly and exceeds the inner side surface of the second side plate;

[0035] In the folded state, the first side panel is stacked on the top surface of the base, and the second side panel is stacked on the top surface of the first side panel; the inner side surface of the first engaging portion extends beyond the inner side surface of the first side panel and abuts against the base; or

[0036] The second side plate is stacked on the top surface of the base, and the first side plate is stacked on the top surface of the second side plate; the inner side surface of the second engaging portion extends beyond the inner side surface of the second side plate and abuts against the base.

[0037] In one embodiment, the height of the barrier is in the range of 10 mm to 15 mm.

[0038] In one embodiment, the base is provided with a discharge port; the discharge port is located on one side of the base;

[0039] The height of the top surface of the base gradually decreases from the adjacent side and the opposite side of the discharge port to the discharge port.

[0040] In one embodiment, the height of the top surface of the base gradually decreases from the adjacent side and the opposite side of the discharge port to the discharge port, and the height reduction range is less than 15 mm.

[0041] In one embodiment, the first side panel and the second side panel are short side panels, and the third side panel is a long side panel;

[0042] The discharge port is located at a side where the base is connected to the first side plate or the second side plate.

[0043] In one embodiment, the container further comprises a heating plate, and the heating plate is located in the accommodating space.

[0044] In one embodiment, the first side plate is provided with a first engaging portion;

[0045] The second side plate is provided with a second engaging portion;

[0046] The two third side plates are respectively provided with a first clamping portion clamped to the first clamping portion and a second clamping portion clamped to the second clamping portion;

[0047] In the folded state, the first and second clamping portions of one of the third side panels abut against the top surface of the other third side panel, and the first and second clamping portions of the other third side panel abut against the top surface of the second side panel.

[0048] In one embodiment, the inner side surface of the first clamping portion and the inner side surface of the first engaging portion are both arc surfaces with the same radius and are joined to form a rounded corner;

[0049] The inner side surface of the second clamping portion and the inner side surface of the second engaging portion are arc surfaces with the same radius and are spliced ​​together to form a rounded corner.

[0050] In one embodiment, the radius of the inner side surface of the first clamping portion ranges from 15 mm to 40 mm.

[0051] In one embodiment, the radius of the inner side surface of the first clamping portion is 25 mm or 30 mm.

[0052] In one embodiment, the first clamping portion protrudes from the inner wall of the third side plate by a size ranging from 2 mm to 3 mm.

[0053] The container of the present invention is foldable, and the barrier is used to support the first side panel, the second side panel and the third side panel, that is, a support structure is established between the multiple side panels and the bottom panel, so that a storage space of not less than a specific height is formed between the side panel that is folded first and the bottom panel, allowing the container to have a certain redundant space to store the heating plate and other accessories that need to be included in the box even in the folded state, which facilitates the management of the accessories included in the box and can provide a certain protection for the accessories included in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a perspective view of a container according to one embodiment of the present invention.

[0055] Figure 2 yes Figure 1 A perspective view of the container with the lid removed in the illustrated embodiment.

[0056] Figure 3 and Figure 4 It is a cross-sectional view of four side panels after assembly according to an embodiment of the present invention.

[0057] Figure 5 yes Figure 1 Top view of the base in the illustrated embodiment.

[0058] Figure 6 yes Figure 1 A perspective view of the base in the illustrated embodiment.

[0059] Figure 7 yes Figure 1 A cross-sectional view of the container in the illustrated embodiment after folding.

[0060] Figure 8 yes Figure 7 A partial enlarged view of area A in the embodiment shown.

[0061] Figure 9 is a cross-sectional view of a container after folding according to another embodiment of the present invention.

[0062] Figure 10 yes Figure 9 A partial enlarged view of area B in the embodiment shown.

[0063] Figure 11 A cross-sectional view of a folded container according to a third embodiment of the present invention.

[0064] Figure 12 yes Figure 11 A partial enlarged view of region C in the illustrated embodiment.

[0065] Figure 13 yes Figure 11 A three-dimensional view of the first side plate and the first engaging portion in the illustrated embodiment.

[0066] Figure 14 yes Figure 13 A partial enlarged view of region D in the illustrated embodiment.

[0067] Figure 15 yes Figure 11 A perspective view of the container in the illustrated embodiment.

[0068] Figure 16 yes Figure 15 A partial enlarged view of region E of the illustrated embodiment.

[0069] Figure 17 It is a perspective view of a container according to another embodiment of the present invention with the lid removed.

[0070] Figure 18 yes Figure 17 A top view of the container of the illustrated embodiment.

[0071] Figure 19 yes Figure 18 A partial enlarged view of region h in the embodiment shown.

[0072] Figure 20 yes Figure 17 A top view of the third side panel in the illustrated embodiment.

[0073] Figure 21 It's a picture Figure 20 A partial enlarged view of region f in the embodiment shown.

[0074] Figure 22 yes Figure 17 A perspective view of the third side panel in the illustrated embodiment.

[0075] Figure 23 yes Figure 17 A top view of the first side panel in the illustrated embodiment.

[0076] Figure 24 yes Figure 23 A partial enlarged view of region i of the first side panel in the illustrated embodiment.

[0077] Figure 25 yes Figure 17 A perspective view of the first side panel in the illustrated embodiment.

[0078] Figure 26 yes Figure 17 A partial cross-sectional view of the first side panel and the third side panel of the container of the illustrated embodiment.

[0079] Figure 27 yes Figure 17 Graph showing the bending strength test of the rounded corners of the container of the embodiment shown.

[0080] Figure numerals: 100, container; 1, base; 11, bottom plate; 12, extension plate; 13, first side; 14, second side; 15, discharge port; 16, accommodating space; 2, first side panel; 21, first engaging portion; 211, first protruding portion; 212, second engaging block; 213, second engaging groove; 214, rounded corner; 215, outer corner; 22, avoidance groove; 23, engaging groove; 3, second side panel; 31, second engaging portion; 311, second protruding portion; 4, third side panel; 41, engaging block; 42, first engaging portion; 421, first engaging groove; 422, first protruding portion; 423, first engaging block; 43, second engaging portion; 51, spacer; 52, step; 6, box cover; DETAILED DESCRIPTION

[0081] To make the objectives, technical solutions, and advantages of the present invention more apparent, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in various embodiments of the present invention to facilitate a better understanding of the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the claims of this application can be implemented.

[0082] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, that is, should be interpreted to mean "including, but not limited to."

[0083] The following will describe in detail various embodiments of the present invention in conjunction with the accompanying drawings to provide a clearer understanding of the objectives, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0084] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0085] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0086] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0087] The present invention relates to a container 100, which includes a base 1, a first group of side panels, a second group of side panels, a box cover 6, a heating plate and a barrier. The base 1 includes a bottom plate 11 and two extension plates 12. The bottom plate 11 is a rectangular plate and has a pair of oppositely arranged first side edges 13 and a pair of oppositely arranged second side edges 14. The first side edges 13 extend along a first direction, and the second side edges 14 extend along a second direction.

[0088] The two extension plates 12 are respectively connected to the pair of second side edges 14 and extend upward.

[0089] The first set of side panels includes a first side panel 2 and a second side panel 3 disposed opposite to each other, and the second set of side panels includes two third side panels 4 disposed opposite to each other.

[0090] The first side panel 2, the second side panel 3, and the pair of third side panels 4 are foldably connected to the four sides of the base 1. Specifically, the first side panel 2 and the second side panel 3 are short side panels and are arranged opposite each other, while the two third side panels 4 are long side panels and are arranged opposite each other. The first side panel 2 and the second side panel 3 are respectively hinged to a pair of first side edges 13 of the bottom panel 11. The pair of oppositely arranged third side panels 4 are respectively hinged to the top surfaces of two extension panels 12. The two extension panels 12 are primarily used to facilitate the inward folding of the pair of third side panels 4. The folding direction of the first side panel 2, the second side panel 3, and the third side panel 4 relative to the base 1 is not restricted.

[0091] In the folded state, the first set of side panels are stacked on top of the base, and the second set of side panels are stacked on top of the first set of side panels. The first side panel 2 of the first set of side panels can be located on top of the base 1, and the second side panel 3 can be located on top of the first side panel 2. Of course, the second side panel can also be located on top of the base, and the first side panel can be located on top of the second side panel.

[0092] In the embodiment shown in the figure, the first side panel 2 is located on the top surface of the base 1, the second side panel 3 is located on the top surface of the first side panel 2, and a pair of third side panels 4 are stacked on the top surface of the second side panel 3 in sequence, that is, from bottom to top, they are respectively the bottom plate 11, the first side panel 2, the second side panel 3 and a pair of third side panels 4.

[0093] The box cover 6 covers the top surfaces of the four side panels and is detachably assembled or connected to the four side panels.

[0094] The barrier is located between the top surface of the bottom plate 11 of the base 1 and the first set of side plates. The barrier forms an accommodating space 16 between the first set of side plates and the base 1 , and the accommodating space 16 can be used to accommodate the heating plate.

[0095] The container 100 of the present invention is foldable, and the barrier is used to support the first side panel 2, the second side panel 3 and the third side panel 4, that is, a support structure is established between the multiple side panels and the bottom panel 11, so that a accommodating space 16 of not less than a specific height is formed between the side panel that is folded first (that is, one of the first side panel and the second side panel) and the bottom panel 11, allowing the container 100 to have a certain redundant space to store other accessories that need to be included in the box, such as the heating plate, even in the folded state, which facilitates the management of the accessories included in the box and can provide a certain protection for the accessories included in the box.

[0096] A discharge port 15 is further provided at a certain position of the bottom plate 11 . The discharge port 15 is preferably provided at an edge of the base 1 , for example, near the first side edge 13 or the second side edge 14 .

[0097] Furthermore, to facilitate liquid drainage, the top surface of the base plate 11 gradually decreases in height from the sides adjacent to and opposite to the drain port 15 to the drain port 15. In other words, the top surface of the base plate 11 can be designed with a slope that slopes toward the drain port 15, with this slope starting at the boundaries adjacent to and opposite to the drain port 15 as the highest points and gradually descending toward the drain port 15. However, because this slope affects the overall thickness of the base plate 11, the height difference is generally within 15 mm. That is, the top surface of the base 1 gradually decreases in height from the sides adjacent to and opposite to the drain port 15 to the drain port 15, and the range of this height decrease is less than 15 mm. Figure 5 In the illustrated embodiment, the discharge port 15 is disposed near the first side edge 13 of the bottom plate 11 with a height difference of 10 mm, which can also achieve a good liquid auxiliary drainage effect.

[0098] In one embodiment, the barrier members are multiple spacers 51 located between the first set of side panels and the base 1. The spacers 51 extend along the second direction or along the first direction and are located at an edge of the base 1, for example, near the first side edge 13 or the second side edge 14. Of course, as a preferred embodiment, to maintain the stability of the multiple side panels, two spacers 51 are disposed opposite each other, preferably at a position where the base 11 is adjacent to the pair of first side edges 13 or adjacent to the second side edge 14.

[0099] As a preferred solution, the spacer 51 is connected to the top surface of the bottom plate 11 and can be fixed to the top surface of the bottom plate 11 by bonding, bolts or other means, without limiting the specific implementation of the spacer 51.

[0100] exist Figure 6 and Figure 7 In the embodiment shown, two partition bars 51 are located on a pair of second side edges 14 of the base 1, that is, adjacent to the third side panel 4, supporting the first group of side panels and forming a receiving space 16 between the first group of side panels and the bottom panel 11. The heating plate or other accessories can be placed in the receiving space 16, that is, between the two partition bars 51.

[0101] In another embodiment, the two spacers 51 can also be connected to the inner side surfaces of the first side panel 2 and the second side panel, for example, connected to the top surface or bottom surface of the first side panel 2, or to the two side edges of the first side panel 2 close to the two third side panels 4. After the first side panel 2 folds over the top surface of the base, the two spacers 51 abut against the bottom panel 11 to support the first side panel 2. Of course, multiple spacers can also be installed on the inner side surfaces of the first side panel and the second side panel respectively. Regardless of the top surface of the folded base of any of the first and second side panels, the spacers 51 preferably stacked on the side panel on the top surface of the base abut against the bottom panel 11, and can form the accommodating space 16.

[0102] Of course, the partition bar 51 can also be set as a plurality of spaced vertical partition blocks. In order to stably support the first set of side panels, at least three partition blocks are required to be set on the top surface of the bottom plate 11. The three partition blocks form a triangular structure to stably support the first set of side panels.

[0103] In addition, the partition bar 51 may also be configured to be in a curved shape, for example, in a U-shape extending along the edge of the bottom plate 11 , as long as it can stably support the first side plate 2 .

[0104] In the second embodiment, if Figure 9 and Figure 10 As shown, the barrier is two steps 52 provided on the top surface of the bottom plate 11 . The two steps 52 extend along the second direction and are located at the two second side edges 14 of the bottom plate 11 , that is, on the same side as the two third side plates 4 .

[0105] Of course, in another embodiment, two steps 52 can also be set at the position of the bottom plate 11 close to the two first side plates 2, avoiding the discharge port 15. Of course, more steps 52 can also be set at the edge of the bottom plate 11.

[0106] In a third embodiment, Figures 11 to 15 As shown, first engaging portions 21 are provided on both sides of the first side panel 2 facing the two third side panels 4. The first engaging portions 21 engage with the two third side panels 4. Specifically, the outer sides of the two first engaging portions 21 are provided with engaging slots 23, which open toward the third side panels 4. The inner sides of the two third side panels 4 facing the first side panel 2 are provided with engaging blocks 41. When the container 100 is in the open state, the engaging blocks 41 are located within the engaging slots 23.

[0107] Furthermore, the inner side surface of the first engaging portion 21 extends inward beyond the inner side surface of the first side panel 2. In other words, the inner side of the first engaging portion 21 protrudes from the inner side surface of the first side panel 2. The barrier member is the portion of the inner side surface of the first engaging portion 21 that protrudes from the inner side surface of the first side panel 2. The portion of the first engaging portion 21 that protrudes from the inner side surface of the first side panel 2 is defined as the first protrusion 211. When the container 100 is folded, the inner side surface of the first side panel 2 faces the bottom panel 11, and the first protrusion 211 of the first engaging portion 21 abuts against the bottom panel 11, so that the first side panel 2 and the bottom panel 11 are spaced apart.

[0108] Furthermore, second engaging portions 31 are respectively provided on both sides of the second side plate 3 facing the two third side plates 4 , and the second engaging portions 31 are used for engaging with the two second side plates 3 .

[0109] The outer side of the second engaging portion 31 is similarly provided with a slot 23, while the inner side also protrudes beyond the inner side of the second side panel 3. The portion of the second engaging portion 31 protruding beyond the inner side of the second side panel 3 is defined as a second protrusion 311. To facilitate folding and reduce the distance between the second side panel 3 and the first side panel 2, a recessed relief groove 22 is provided on the outer side of the first engaging portion 21. When the container 100 is folded, the second protrusion 311 of the second engaging portion 31 is located within the relief groove 22, thereby allowing the second side panel 3 to fit snugly against the first side panel 2 and reducing the folding space.

[0110] Of course, as a preferred solution, the first side plate 2 and the second side plate 3 have the same shape, the second engaging portion 31 and the first engaging portion 21 have the same shape, and the outer side surface of the second engaging portion is also provided with an avoidance groove.

[0111] If the first side panel 2 is preferably stacked on the top surface of the base, and the second side panel is stacked on the top surface of the first side panel, then the first protrusion 211 of the first engaging portion 21 abuts against the bottom plate 11 so that the first side panel 2 and the bottom plate 11 are spaced apart, and the second protrusion 311 of the second engaging portion 31 is located in the avoidance groove 22 of the first engaging portion.

[0112] If the second side panel is preferentially stacked on the top surface of the base, and the first side panel is stacked on the top surface of the second side panel, then the second protrusion 311 of the second engaging portion 31 abuts against the top surface of the bottom panel, so that the second side panel and the bottom panel are spaced apart to form a receiving space, and the first protrusion of the first engaging portion is located in the avoidance groove of the second engaging portion.

[0113] That is to say, the present invention does not limit the folding order of the first side panel and the second side panel.

[0114] The second clamping portion 31 and the second side panel 3 are integrally formed, and the first clamping portion 21 and the first side panel 2 are integrally formed, that is, the first side panel 2 and the first clamping portion 21 have the same overall shape as the second side panel 3 and the second clamping portion 31, which facilitates the processing of the two side panels.

[0115] Buckles for engaging with the first engaging portion 21 and the second engaging portion 31 are respectively provided on both sides of the two third side panels 4 along the second direction, so as to facilitate the engagement of the two third side panels 4 with the first side panel 2 and the second side panel 3 .

[0116] It should be understood that the first side panel 2 and the second side panel 3 can also be detachably connected in other ways, and are not limited to the aforementioned snap-fit ​​method. Furthermore, the outer side surfaces of the first and second side panels 2 and 3 are those facing outside when the container 100 is open, while the inner side surfaces are those facing inside. The outer side surfaces of the first and second engaging portions 21 and 31 are also those facing outside when the container 100 is open, while the inner side surfaces are those facing inside.

[0117] It should be understood that the first side panel 2 and the second side panel 3 can also be long side panels, and the third side panel 4 is a short side panel, and one of the first side panel 2 and the second side panel is the side panel that is folded first in the folding order, that is, the side panel that is located on the top surface of the bottom panel 11 after folding. The barrier member can be provided on a side panel that is preferably folded. The height of the partition bar 51, the step 52 or the first clamping portion 21 protruding from the inner surface of the first side panel 2 or the second side panel is D, and the range of D is 10mm-15mm. When the container 100 is folded, the partition bar 51 or the step 52 can support the first side panel 2 or the second side panel so that there is at least a space of height D between it and the top surface of the bottom panel 11. This height space plus the slope of the bottom panel 11 form a space that can accommodate and protect the storage and safety of other box accessories such as the heating plate after the box is folded.

[0118] In another embodiment, Figure 17-26 As shown, the container 100 is basically the same as the above-mentioned embodiment, and also includes a base 1, a first side panel 2, a second side panel 3, a pair of oppositely arranged third side panels 4, a box cover 6 and a heating plate. The base 1 includes a bottom plate 11 and two extension panels 12. The bottom plate 11 is a rectangular plate and has a pair of oppositely arranged first side edges 13 and a pair of oppositely arranged second side edges 14. The first side edge 13 extends along the first direction, and the second side edge 14 extends along the second direction.

[0119] The two extension plates 12 are respectively connected to the pair of second side edges 14 and extend upward.

[0120] The first side panel 2, the second side panel 3, and the pair of third side panels 4 are foldably connected to the four sides of the base 1. Specifically, the first side panel 2 and the second side panel 3 are short side panels and are arranged opposite each other, while the two third side panels 4 are long side panels and are arranged opposite each other. The first side panel 2 and the second side panel 3 are respectively hinged to a pair of first side edges 13 of the bottom panel 11. The pair of oppositely arranged third side panels 4 are respectively hinged to the top surfaces of two extension panels 12. The two extension panels 12 are primarily used to facilitate the inward folding of the pair of third side panels 4. The folding direction of the first side panel 2, the second side panel 3, and the third side panel 4 relative to the base 1 is not restricted.

[0121] In the folded state, the first side panel 2 is located on the top surface of the base 1, the second side panel 3 is located on the top surface of the first side panel 2, and the pair of third side panels 4 are sequentially stacked on the top surface of the second side panel 3. From bottom to top, they are the bottom panel 11, the first side panel 2, the second side panel 3, and the pair of third side panels 4. Of course, in other embodiments, in the folded state, the second side panel is located on the top surface of the base, the first side panel is located on the top surface of the second side panel, and the third side panel is located on the top surface of the second side panel. In other words, the folding order of the first and second side panels is not limited.

[0122] The first side panel 2 has first engaging portions 21 on both sides facing the two third side panels 4, and the second side panel 3 has second engaging portions 31 on both sides facing the two third side panels 4. The difference is that the two third side panels 4 have protruding first engaging portions 42 on the side close to the first side panel 2, and protruding second engaging portions 43 on the side close to the second side panel 3.

[0123] When the container 100 is unfolded and in use, the two first clamping portions 42 are clamped and engaged with the two first clamping portions 21 of the first side plate 2 , and the two second clamping portions 43 are clamped and engaged with the two second clamping portions 31 of the second side plate 3 .

[0124] In the folded state, the first side panel 2 is located on the top surface of the base 1, the second side panel 3 is located on the top surface of the first side panel 2, the first to third side panel 4 is stacked on the top surface of the second side panel 3, and the first clamping portion 42 and the second clamping portion 43 of the third side panel 4 are against the top surface of the second side panel 3, so that a gap is formed between the first to third side panel 4 and the second side panel 3.

[0125] The second third side plate 4 is stacked on the top surface of the first third side plate 4 , and the first clamping portion 42 and the second clamping portion 43 of the second third side plate 4 abut against the top surface of the first third side plate 4 , so that a gap is also formed between the second third side plate 4 and the first third side plate 4 .

[0126] As a preferred solution, the inner side surfaces of the first clamping portion 42 and the second clamping portion 43 of the third side panel 4 are both arc surfaces concave toward the outside, and the inner side surfaces of the two first clamping portions 21 and the two second clamping portions 31 are also arc surfaces concave toward the inside, and the arc surface radius of the first clamping portion 21, the arc surface radius of the second clamping portion 31, the arc surface radius of the first clamping portion 42 and the arc surface radius of the second clamping portion 43 are the same.

[0127] When the container 100 is in the unfolded use state, the arc surfaces of the two first clamping parts 42 and the arc surfaces of the two first clamping parts 21 are spliced ​​together to form an approximately 1 / 4 arc corner 214, and the arc surfaces of the two second clamping parts 43 and the arc surfaces of the two second clamping parts 31 are spliced ​​together to form an approximately 1 / 4 arc corner 214. In other words, the four corners of the container 100 are seamlessly connected rounded corners 214.

[0128] Collapsible containers 100, especially those used for liquid packaging, are extremely popular in the market and are increasingly being adopted. When used as a liquid packaging solution, collapsible containers 100, combined with disposable liner bags and filling and discharge valves, can effectively protect the sanitation and safety of goods. Therefore, they are highly suitable for industries with high hygiene requirements, such as food and cosmetics. The liner bag is in a vacuum state before filling and gradually unfolds during the liquid filling process, adhering to the inner wall of the container 100. Because the interior space of the container 100 is a square structure, the liner bag, after unfolding, faces difficulties in fitting into the four corners enclosed by the four side panels. This is due to both the liner bag's structure and the filling operator's proficiency. This fitting is primarily to prevent the excessively rounded corners of the liquid bag from creating gaps with the right-angled corners of the container 100, which could lead to swaying of the liquid during transportation, creating a rubbing effect that could affect the safety of the liquid bag.

[0129] When the container 100 is fully loaded, it is often necessary to stack it for storage or transportation. At this time, due to the structure of the base 1, the corners where the first side panel 2, the second side panel 3 and the third side panel 4 are connected to each other need to bear most of the weight of the upper boxes. When the container 100 is fully loaded for transportation, multiple containers 100 are often stacked and loaded onto the vehicle. The stacked containers 100 are close to each other to reduce displacement during transportation. When the vehicle accelerates or decelerates suddenly, the violent shaking of the liquid will cause the four side panels of the container 100 to bulge significantly. The bulging side panels will affect the tightly attached container 100, forcing its side panels to concave, thereby affecting the interlocking connection structure between the side panels of the container 100, posing a threat to the safety of the goods.

[0130] The present invention is processed by rounding the four corners of the container 100, such as Figure 27 As shown, testing has shown that the rounded corners have strong bending resistance, which can improve the strength of the four side panels and facilitate the fitting of the liner bag after filling. Because the present invention improves the safety of fully loaded liner bag transportation, enhances the stacking stability of container 100, and better prevents the impact of liquid surge on the bite, it comprehensively improves the reliability of container 100 itself and can better protect the safety of the goods inside.

[0131] As a preferred embodiment, the arc radius of the first clamping portion 42, the arc radius of the second clamping portion 43, the arc radius of the first clamping portion 21, and the arc radius of the second clamping portion 31 are in the range of 15mm-40mm, and specifically can be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm and 40mm.

[0132] More preferably, the arc radius of the first engaging portion 42, the arc radius of the second engaging portion 43, the arc radius of the first engaging portion 21, and the arc radius of the second engaging portion 31 are in the range of 25 mm or 30 mm.

[0133] Of course, in some embodiments, the inner side surfaces of the two first clamping parts 42 and the two first clamping parts 21 can also be arranged as cambered surfaces, and the cambered surface radius of the two first clamping parts 42 and the cambered surface radius of the two first clamping parts 21 can be the same or different, and can be a circular arc or a non-circular arc. Or the inner side surfaces of the two second clamping parts 43 and the two second clamping parts 31 can be arranged as cambered surfaces, and the cambered surface radius of the two second clamping parts 43 and the cambered surface radius of the two second clamping parts 31 can be the same or different, and can be a circular arc or a non-circular arc. Or the two first clamping parts 42 or the two second clamping parts 43 are cambered surfaces, and the two second clamping parts 31 and the two first clamping parts 21 are planes. Or the inner side surfaces of the two first clamping parts 21 or the inner side surfaces of the two second clamping parts 31 are cambered surfaces, and the inner side surfaces of the two first clamping parts 42 and the two second clamping parts 43 are cambered surfaces. Of course, this cambered surface does not need to be a circular arc.

[0134] In the embodiment shown in the figure, the engagement manner between the first clamping portion 42 and the first engaging portion 21 is the same as the engagement manner between the second clamping portion 43 and the second engaging portion 31 .

[0135] Taking the implementation of the first clamping portion 42 and the first clamping portion 21 as an example, the first clamping portion 42 includes a first clamping block 423 and a first protrusion 422, the first protrusion 422 is connected to the inner side surface of the third side plate 4, and the first clamping block 423 is connected to the inner side of the first protrusion 422 and forms a first clamping groove 421 with the first protrusion 422, and the first clamping groove 421 is open toward the inner side of the container 100.

[0136] The first engaging portion 21 includes a second engaging block 212 . The second engaging block 212 is connected to an end portion of the first side plate 2 and forms a second engaging groove 213 open to the outside with an end surface of the first side plate 2 .

[0137] When the container 100 is in the unfolded state, the second engaging block 212 of the first engaging portion 21 is engaged with the first engaging groove 421 of the first engaging portion 42, and the first engaging block 423 of the first engaging portion 42 is engaged with the second engaging groove 213 of the first engaging portion 42. The inner side surface of the first protrusion 422 and the inner side surface of the second engaging portion 31 are joined to form a rounded corner.

[0138] Of course, in other embodiments, the first engaging portion 21 and the first engaging portion 42 may also adopt other implementations that are not realistic in the illustrated embodiment of the present invention, as long as the inner side surfaces of the first engaging portion 21 and the second engaging portion 43 form rounded corners 214 .

[0139] Of course, in other embodiments, the first side panel 2 , the second side panel 3 , or the outer corners 215 on both sides of the second side panel 3 may also be configured as rounded corners 214 .

[0140] While preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0141] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be construed as limited to the specific embodiments disclosed in the specification and claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

[0142] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A container, characterized in that: include: base; A first set of side panels, the first set of side panels comprising: a first side panel stackably connected to the base, and a second side panel, the second side panel being disposed opposite to the first side panel and foldably connected to the base; a second set of side panels, the second set of side panels including a pair of oppositely disposed third side panels, the third side panels being foldably connected to the base; In the folded state, the first set of side panels are stacked on the top surface of the base, and the second set of side panels are stacked on the top surface of the first set of side panels; A barrier member is located between the base and the first group of side panels, and forms an accommodating space between the first group of side panels and the base.

2. The container according to claim 1, characterized in that The barrier member is a spacer bar located between the first group of side panels and the base.

3. The container according to claim 2, characterized in that The spacer bar is connected to the top surface of the base.

4. The container according to claim 3, characterized in that The base includes a pair of first side edges that are oppositely disposed and a pair of second side edges that are oppositely disposed; The first side panel and the second side panel are respectively connected to a pair of the first side edges; A pair of the third side panels are respectively connected to a pair of the second side edges; The two spacers are respectively close to a pair of the second side edges of the base.

5. The container according to claim 2, wherein The spacer bar is connected to an inner side surface of the first side panel or the second side panel.

6. The container according to claim 5, characterized in that The two spacers are respectively adjacent to the two third side panels.

7. The container according to claim 1, wherein The barrier member is a step arranged on the top surface of the base.

8. The container according to claim 7, characterized in that The two steps are located on two opposite side edges of the base and on the same side as the two third side panels.

9. The container according to claim 1, wherein In the folded state, the first side panel is stacked on the top surface of the base, and the second side panel is stacked on the top surface of the first side panel; The first side plate is provided with a first clamping portion, and the first clamping portion is clamped with the two third side plates; The inner side surface of the first engaging portion extends beyond the inner side surface of the first side plate; The barrier member is a portion of the inner side surface of the first engaging portion that extends beyond the inner side surface of the first side plate.

10. The container according to claim 9, characterized in that The second side plate is provided with a second clamping portion, and the second clamping portion is clamped with the two third side plates.

11. The container according to claim 10, characterized in that The shape of the second engaging portion is the same as that of the first engaging portion.

12. The container according to claim 9, wherein The outer side surface of the first engaging portion is provided with a recessed slot; The third side plate is provided with a clamping block for clamping with the clamping slot.

13. The container according to claim 1, wherein The first side plate is provided with a first clamping portion, and the first clamping portion is clamped with the two third side plates; The inner side surface of the first engaging portion extends beyond the inner side surface of the first side plate; The second side plate is provided with a second clamping portion, and the second clamping portion is clamped with the two third side plates; The inner side surface of the second engaging portion extends inwardly and exceeds the inner side surface of the second side plate; In the folded state, the first side panel is stacked on the top surface of the base, and the second side panel is stacked on the top surface of the first side panel; the inner side surface of the first engaging portion extends beyond the inner side surface of the first side panel and abuts against the base; or The second side plate is stacked on the top surface of the base, and the first side plate is stacked on the top surface of the second side plate; the inner side surface of the second engaging portion extends beyond the inner side surface of the second side plate and abuts against the base.

14. The container according to claim 1, wherein The height of the barrier is in the range of 10 mm to 15 mm.

15. The container according to claim 1, wherein The base is provided with a discharge port; the discharge port is located on one side of the base; The height of the top surface of the base gradually decreases from the adjacent side and the opposite side of the discharge port to the discharge port.

16. The container according to claim 15, characterized in that The height of the top surface of the base gradually decreases from the adjacent side and the opposite side of the discharge port to the discharge port, and the height reduction range is less than 15 mm.

17. The container according to claim 15, wherein The first side panel and the second side panel are short side panels, and the third side panel is a long side panel; The discharge port is located at a side where the base is connected to the first side plate or the second side plate.

18. The container according to claim 1, wherein The container further includes a heating plate, and the heating plate is located in the accommodating space.

19. The container according to claim 1, wherein The first side plate is provided with a first engaging portion; The second side plate is provided with a second engaging portion; The two third side plates are respectively provided with a first clamping portion clamped to the first clamping portion and a second clamping portion clamped to the second clamping portion; In the folded state, the first and second clamping portions of one of the third side panels abut against the top surface of the other third side panel, and the first and second clamping portions of the other third side panel abut against the top surface of the second side panel.

20. The container according to claim 19, wherein The inner side surface of the first clamping portion and the inner side surface of the first engaging portion are both arc surfaces with the same radius and are joined to form a rounded corner; The inner side surface of the second clamping portion and the inner side surface of the second engaging portion are arc surfaces with the same radius and are spliced ​​together to form a rounded corner.

21. The container according to claim 20, characterized in that The radius of the inner side surface of the first clamping portion ranges from 15 mm to 40 mm.

22. The container according to claim 20, wherein The radius of the inner side surface of the first clamping portion is 25 mm or 30 mm.

23. The container according to claim 20, wherein The first clamping portion protrudes from the inner wall of the third side plate by a size ranging from 2 mm to 3 mm.

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