Collapsible container

Abstract

The present invention discloses a collapsible container. The present invention comprises an outer box and an inner liner detachably disposed within the outer box, the inner liner having an upwardly opening. The outer box comprises a base, a lid for sealing the inner liner's opening, a pair of opposing first side panels foldably connected to the base, and a pair of opposing second side panels, wherein adjacent first and second side panels are connected and surround the base. Each first side panel comprises a first plate body operable to rotate toward the interior of the outer box to clamp the inner liner, and / or each second side panel comprises a second plate body operable to rotate toward the interior of the outer box to clamp the inner liner. Compared with the prior art, the collapsible container is detachably recyclable, reducing recycling space and transportation costs. Furthermore, the collapsible container is foldable and has better stability.

Description

Technical Field

[0001] The embodiments of the present invention relate to logistics products, and in particular to a foldable container. Background Art

[0002] Ton barrels, due to their strong corrosion resistance, are widely used in chemical plants to store highly corrosive, flammable, and volatile liquid chemical raw materials, requiring high safety performance. Existing ton barrels are all one-piece and are transported and recycled at their maximum volume. During recycling, even though the container is empty, its volume remains unchanged, which significantly increases transportation space and costs. Summary of the Invention

[0003] The object of the present invention is to provide a foldable container, which can be detachably recycled, reduces recycling space, reduces transportation costs, and has good stability while being foldable.

[0004] To solve the above technical problems, an embodiment of the present invention provides a foldable container, comprising: an outer box and an inner liner detachably disposed within the outer box, the inner liner having a receiving opening opening facing upward; the outer box comprising a base, a lid for sealing the receiving opening of the inner liner, a pair of opposing first side panels and a pair of opposing second side panels foldably connected to the base, wherein adjacent first side panels and second side panels are connected and surround the base;

[0005] Each of the first side panels has a first plate body that can be operably rotated toward the inside of the outer box to clamp the inner liner, and / or each of the second side panels has a second plate body that can be operably rotated toward the inside of the outer box to clamp the inner liner.

[0006] In one embodiment, when the first plate is operably rotated toward the inside of the outer box to clamp the inner container, each of the first side panels has a pair of oppositely disposed and spaced side prisms movably connected to the base, and a first plate clamped between the pair of side prisms, the first plate being hinged to the side prisms; the first plate is operably fixedly connected to the side prisms, and the first plate is operably fixedly connected to an adjacent pair of the second side panels;

[0007] When the first plate is fixedly connected to the side prism, the first plate is away from the inner container; when the first plate is fixed to the second side plate, the first plate portion is in contact with the inner container.

[0008] In one embodiment, the upper end of the first plate is hinged to the side prism, and the first plate is operably rotated around the hinge between the first plate and the side prism.

[0009] In one embodiment, the first plate is locked or released with the side prism and the second side plate via a first linkage latch.

[0010] In one embodiment, the second side plate has a second outer frame arranged around the second plate body, and the second outer frame is provided with a second insertion hole for inserting the first linkage pin.

[0011] In one embodiment, when each of the second side panels has a second plate body operable to rotate toward the inside of the outer box and clamp the inner container;

[0012] The second side panel comprises a second outer frame provided around the second panel, and an upper panel hinged to the second outer frame. The upper panel is located below the second panel, and the second panel is hinged to the second outer frame. The second panel is operable to rotate toward the inside of the outer box to clamp the inner container.

[0013] When the second plate is fixed to the second outer frame, the second plate is away from the inner container; when the second plate is fixed to the first plate, the second plate is at least partially against the inner container.

[0014] In one embodiment, the second plate body is connected with an upper rotating rod, a second linkage latch and a lower rotating rod from top to bottom; the upper rotating rod and the lower rotating rod are both rotatably connected to the second plate body at one end and rotatably connected to the second outer frame at the other end; and the upper rotating rod and the lower rotating rod are both operably rotated around the connection point with the second outer frame toward the inside or outside of the outer box; the second linkage latch is operably inserted into or pulled out of the first plate body and the second outer frame.

[0015] In one embodiment, the box lid is hinged to one of the first side panels via a first hinge; the box lid comprises: an outer frame, a cover body connected to the outer frame, a filling port is provided on the cover body, and the cover body is used to seal the accommodating port of the liner; the first side panel is hinged to the cover body via the first hinge.

[0016] In one embodiment, the top of the inner container is connected to each of the first side panels and each of the second side panels.

[0017] In one embodiment, the top of the inner container is directed toward the outside of the inner container and is bent downward to form an outer edge, and the first side panel and the second side panel are respectively engaged with the corresponding outer edges.

[0018] In one embodiment, the box cover is detachably connected to the first side panel and the second side panel of the outer box.

[0019] In one embodiment, a plurality of the inner containers can be nested with each other.

[0020] Compared to the prior art, the embodiments of the present invention offer a detachable connection between the inner container and the outer box. When the first and second side panels are folded onto the base, the lid also folds onto the base, thereby achieving foldability of the outer box. Furthermore, each of the first and / or second side panels can be rotated inwardly of the outer box to clamp the inner container, thereby reducing the space inside the outer box, positioning the inner container, and preventing it from shaking. This allows the container to be folded while also providing improved stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 is a schematic structural diagram of a foldable container according to an embodiment of the present invention;

[0023] Figure 2 is an exploded view of a foldable container according to an embodiment of the present invention;

[0024] Figure 3 is a perspective view of a partially folded outer box according to an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A cross-sectional view of the connection relationship between the second side plate and the column in the middle state;

[0026] Figure 5 is a schematic diagram of a folded outer box according to an embodiment of the present invention;

[0027] Figure 6 is a schematic diagram of stacking a plurality of folded outer boxes according to an embodiment of the present invention;

[0028] Figure 7 is a schematic diagram of multiple inner containers stacked according to one embodiment of the present invention;

[0029] Figure 8 is a schematic structural diagram of a stack of foldable containers according to an embodiment of the present invention;

[0030] Figure 9 is an exploded view of a box cover of an outer box according to one embodiment of the present invention;

[0031] Figure 10 is an exploded view of a first side panel according to an embodiment of the present invention;

[0032] Figure 11 is an exploded view of a second side panel according to an embodiment of the present invention;

[0033] Figure 12 1 is a diagram showing the positions of the first side plate and the second side plate according to an embodiment of the present invention, and illustrates the state when the first plate and the second plate clamp the inner container;

[0034] Figure 13 This is a diagram showing the positions of the first side plate and the second side plate at another angle according to an embodiment of the present invention, and illustrates the state when the first plate and the second plate are clamping the inner container;

[0035] Figure 14 is an exploded view of a first linkage latch according to an embodiment of the present invention;

[0036] Figure 15 2 is a schematic structural diagram of a box cover being separated from an outer box according to another embodiment of the present invention. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, each embodiment 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 in each embodiment of the present invention, many technical details are provided to help readers better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented.

[0038] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0039] 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."

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] The following describes embodiments of the present invention with reference to the accompanying drawings. Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 As shown, a collapsible container 100 includes an outer box 1 and an inner liner 2 removably disposed within the outer box 1. The inner liner 2 has an upwardly opening 20. The outer box 1 has a base 11, a lid 12 for sealing the liner 2's opening 20, a pair of opposing first side panels 13 and a pair of opposing second side panels 14 foldably connected to the base 11, with adjacent first and second side panels 13, 14 connected and surrounding the base 11. The lid 12 is hingedly connected to the top end of a first side panel 13 via a first hinge 3. Each first side panel 13 and each second side panel 14 can be operatively rotated inward or outward relative to the base 11. The lid 12 can be operatively rotated to the outer surface of the first side panel 13 to which it is hingedly connected and positioned opposite the outer surface of the first side panel 13. When the outer box 1 is folded, the first side panels 13, each second side panel 14, and the lid 12 are stacked over the base 11. The base 11 of the outer box 1 in the folded state can be operatively stacked and docked with the base 11 of the outer box 1 in other folded states. The inner diameter of the top of the inner liner 2 is greater than the outer diameter of the bottom of the inner liner 2.

[0045] From the foregoing, it is apparent that because the inner liner 2 and outer box 1 are detachably connected, and the lid 12 is hingedly connected to a first side panel 13 and can be flipped and folded onto the outer surface of the first side panel 13, when the first and second side panels 13, 14 are folded onto the base 11, the lid 12 is also folded onto the base 11, thereby achieving the folding of the outer box 1. Furthermore, the inner diameter of the top of the inner liner 2 is larger than the outer diameter of the bottom of the inner liner 2, allowing multiple inner liners 2 to be stacked. This allows the collapsible container 100 to be recycled separately, and the inner liners 2 can be stacked when the outer box 1 is folded, saving space and reducing transportation costs.

[0046] like Figure 3 As shown, the first hinge member 3 has a connecting hinge body 31 , a first hinge pin 32 and a second hinge pin 33 . The first hinge pin 32 connects the hinge body 31 and the box cover 12 , and the second hinge pin 33 connects the hinge body 31 and the top of a first side panel 13 .

[0047] In other embodiments, the box cover 12 may not be hinged to the first side panel 13, but may be separated from the first side panel 13 and directly cover the inner container 2 when needed.

[0048] Further, such as Figure 1 、 3 As shown, the base 11 comprises a bottom plate 111 and two pairs of opposing columns 112 and 113 connected to the four corners of the bottom plate 111. The columns can be metal columns. The bottom plate 111 is rectangular, with four columns at the four corners. Each second side panel 14 and each first side panel 13 is clamped between two different columns and hingedly connected to two adjacent columns. As shown in the figure, a first side panel 13 is clamped between a column 112 and a column 113, and a second side panel 14 is clamped between two columns 112.

[0049] like Figure 6 As shown, when the outer box 1 is folded, each first side panel 13 and each second side panel 14 is bent and connected to its corresponding column, and the top of the column can be operatively connected to the bottom of the column of the outer box 1 in the other folded states. Specifically, the bottom of the column is provided with a groove, and the outer diameter of the top of the column is smaller than the inner diameter of the groove. After folding, two outer boxes 1 can be stacked, and the top of the column in the outer box 1 located on the upper side can be inserted into the groove of the column in the outer box 1 located on the lower side. Specifically,

[0050] Furthermore, the structures of the pillars 112 and 113 are the same, and the following description will be made using the pillar 112 as an example. Figure 3 、 Figure 4 and Figure 5As shown, the column has a column body and a support foot 10 with a groove. The column body is vertically connected to the support foot 10, and the first side panel 13 and the second side panel 14 are both hingedly connected to the column body. A slot 114 opening upward is provided at the top of the column 112, and a protrusion 131 is provided on the side prism 130 of the first side panel 13 to be operably engaged with the slot 114. A slide 115 extending from top to bottom is provided on the column, and the side prism 130 of the first side panel 13 is operably slidable along the slide 115. The slot 114 is provided at the top of the wall of the slide 115 and has an upward opening. A long groove 116 extending from top to bottom is provided on the wall of the slide 115, and the side prism 130 of the first side panel 13 is provided with an insert 133 that is operably slidable along the long groove 116. When the first side panel 13 is upright, the insert 133 is stuck in the bottom of the long slot 116, and the protrusion 131 is embedded in the slot 114. When the first side panel 13 needs to be folded, the lock bolt 6 that locks the first and second side panels 13 and 14 is pulled open. The first side panel 13 is first raised, and the insert 133 slides upward in the long slot, the protrusion 131 disengages the slot 114, and then the first side panel 13 is bent into the outer box 1, finally achieving the folding of the first side panel 13. Each second side panel 14 is hinged to the corresponding column via a hinge shaft 4. The second side panel 14 rotates around the axis of the hinge shaft 4 and folds toward the base 11. The lower ends of the columns 112 and 113 have hinge holes, which are closer to the bottom panel 111 than the long slot 116. The hinge shaft is connected to the hinge hole. When folding the outer box 1 , the two second side panels 14 are folded first, and then the two first side panels 13 are folded, so that the second side panels 14 are located below the first side panels 13 .

[0051] In addition, if Figure 5 As shown, the folded first side panel 13 and the second side panel 14 are separated from the pillars to form a spacing area 70, leaving a placement area for the pillars of other outer boxes 1. As shown in the figure, the column 112 has a first vertical plate 1121 and a second vertical plate 1122 forming an angle with the first vertical plate 1121. The bottoms of the first vertical plate 1121 and the second vertical plate 1122 are inserted into the supporting legs 10. A groove is provided at the bottom of the supporting legs 10. The edges where the first vertical plate 1121 and the second vertical plate 1122 are connected together form the side edges of the column. A sliding groove is formed between the first vertical plate 1121 and the second vertical plate 1122. The sides of the first vertical plate 1121 and the second vertical plate 1122 facing away from each other have inclined surfaces, and the two inclined surfaces gradually move away from the side edges from top to bottom, so that the top size of the first vertical plate 1121 and the second vertical plate 1122 is smaller and away from the first side plate 13 and the second side plate 14, and can be inserted into the supporting legs 10 of other outer boxes 1, and also provide space for placing the supporting legs 10 of other outer boxes 1.

[0052] In addition, if Figure 8As shown, when the outer box 1 is not folded, two outer boxes 1 can be stacked. The outer diameter of the top of the side prism 130 of the first side panel 13 is smaller than the inner diameter of the groove, and the side prism 130 of the first side panel 13 can be inserted into the groove. In other words, when the two outer boxes 1 are stacked, the side prism 130 of the first side panel 13 is inserted into the groove at the bottom of the support leg 10. It is understood that in other embodiments, the top of the side prism of the first side panel 13 can also be provided with a recessed opening, and when stacked, the support leg is inserted into the recessed opening.

[0053] Figure 10 In the exploded view, the first plate is upright and not supporting the inner container, and the first linkage pin can be inserted into the hole 1330 of the side prism 130; Figure 11 In the exploded view, when the second plate is not against the inner container, the second linkage latch can be inserted into the hole 1440 of the second outer frame 144; Figure 12 The figure shows that after the first plate 132 rotates about the protruding shaft 180 into the outer box, the first linkage latch can be inserted into the second outer frame 144. Figure 12 The figure shows that the second plate 142 is rotated toward the inner side of the outer box to clamp the inner container, and the second linkage latch 82 can be inserted into the first plate 132.

[0054] Further, such as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, each first side panel 13 has a first plate body 132 that can be operably rotated toward the inner side of the outer box 1 to clamp the inner liner 2, and each second side panel 14 has a second plate body 142 that can be operably rotated toward the inner side of the outer box 1 and clamp the inner liner 2, thereby reducing the space inside the outer box 1, positioning the inner liner 2, and preventing the inner liner 2 from shaking.

[0055] Specifically, if Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown, the first side panel 13 includes a first outer frame 121 and a first plate 132 hingedly connected to the first outer frame 121. The first outer frame 121 has a pair of oppositely disposed and spaced side prisms 130 supported on the base 11. The first plate 132 is clamped between the pair of side prisms 130 and is hingedly connected to the side prisms 130. The first plate 132 rotates about its hinge with the side prisms. When the first plate 132 partially abuts the inner liner 2, the first plate 132 can be fixedly connected to the second side panel 14, thereby preventing the first plate 132 from moving and positioning the inner liner 2. When the first plate 132 and the second side plate 14 are loosened and the first plate 132 is rotated to a vertical state, the first plate 132 and the inner liner 2 are separated away from each other, and the first plate 132 and the side prism 130 are fixed, and the first plate 132 is positioned so as not to interfere with the inner liner 2, making it easy to take the inner liner 2 out of the outer box 1 or place the inner liner 2 in the outer box 1.

[0056] Further, such as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the upper end of the first plate 132 is hingedly connected to the side prisms 130, and the first plate 132 is operable to rotate about the hinge between the first plate 132 and the side prisms 130. The first plate 132 has protruding shafts 80 on both sides that insert into adjacent side prisms, allowing the first plate 132 to rotate about the connection between the protruding shafts 80 and the side prisms toward the inside or outside of the outer box 1. When the first plate 132 is tilted, the lower portion of the first plate 132 can clamp the inner container 2. It is understood that in other embodiments, the protruding shafts 80 can also be provided at the lower end of the first plate 132. In this case, after the first plate 132 is rotated, the upper portion of the first plate 132 can clamp the inner container 2.

[0057] Specifically, if Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the first plate 132 is locked or released with the side prism and the second side plate 14 through the first linkage latch 84. Figure 14As shown, the first linkage latch 84 includes a pair of latch heads 841, a pair of latch seats 842, a pair of compression springs 843, and a steel wire rope 844. A compression spring 843 and a latch head 841 are mounted in each latch seat 842. The ends of the steel wire rope 844 pass through the two latch seats 842 and connect the two latch heads 841. When the first plate 132 is in an upright position, the two latch heads 841 are inserted into the corresponding holes 1300 of the side prisms, securing the first plate 132. When the first plate 132 is rotated, the lower portion of the first plate 132 is pushed, the wire rope 844 is bent, and the pair of latch heads 841 slide out of the holes 1300 of the side prisms. When the first plate 132 is rotated into position to clamp the inner container 2, the compression spring 843 pushes the corresponding latch head 841 to re-insert into the second insertion hole 146 of the second side plate 14, re-positioning the first plate 132, that is, locking the first plate 132 in this position. It is understood that in other embodiments, the first linkage latch 84 can also be replaced with other latches, such as manually pluggable latches, so that the first plate 132 can be positioned or moved.

[0058] Further, such as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the second side panel 14 has a second outer frame 144 disposed around the second panel 142, and an upper panel 141 hingedly connected to the second outer frame 144. The upper panel 141 is located below the second panel 142, and the second panel 142 is hingedly connected to the second outer frame 144. The second outer frame 144 is provided with a second insertion hole 146 for inserting the first linkage latch 84. The second panel 142 is operable to rotate toward the inside of the outer box 1 to clamp the inner liner 2; when the second panel 142 is fixed to the second outer frame 144, the second panel 142 is away from the inner liner 2; when the second panel 142 is fixed to the side prism, the second panel 142 at least partially abuts against the inner liner 2.

[0059] Further, such as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown, the second plate 142 is connected from top to bottom to an upper rotating rod 81, a second linkage latch 82, and a lower rotating rod 83. Each of the upper rotating rod 81 and the lower rotating rod 83 is rotatably connected to the second plate 142 at one end and to the second outer frame 144 at the other end. Both the upper rotating rod 81 and the lower rotating rod 83 are operatively rotatable about their connection points with the second outer frame 144 toward the inside or outside of the outer box 1. The second linkage latch 82 is operatively inserted into or removed from the hole 1320 of the first plate 132 and the hole 1440 of the second outer frame 144. The structure of the second linkage latch 82 can be identical to that of the first linkage latch 84. When the second plate 142 is away from the inner container 2, the upper rotating rod 81 and the lower rotating rod 83 are in a vertical position, and the second linkage latch 82 can be inserted into the hole 1440 of the second outer frame 144. When the second plate 142 is tilted to clamp the inner container 2, the upper rotating rod 81 and the lower rotating rod 83 are in a tilted position, and the second linkage latch 82 can be inserted into the hole 1320 of the first plate 132. In other embodiments, if the second linkage latch 82 is set at a different position in the second plate 142, the second linkage latch 82 can also be inserted into the base 11 or other positions.

[0060] It is understandable that in other embodiments, the second side panel may not be a separate upper panel and second panel, but an integrated panel.

[0061] like Figure 1 、 Figure 2 As shown, the lower edge of the upper panel 141 is hingedly connected to the upper edge of the second outer frame 144 via a second hinge 140. The upper panel 141 is connected to the adjacent first side panel 13 via a latch 6. The upper panel 141 can be operably flipped toward the outside or inside of the outer box 1 relative to the base 11. The second side panel 14 is hingedly connected to the upright post on the base 11 via a hinge shaft 4. When the outer box 1 is folded, the latch 6 is opened, and the second side panel 14 can be rotated and folded toward the base 11. When the second side panel 14 needs to be upright, it rotates around the hinge shaft 4 to achieve positioning. The second hinge 140 can be a metal hinge.

[0062] Further, such as Figure 9 As shown, the box cover 12 includes: an outer frame 121, a cover body 122 connected to the outer frame 121, and the cover body 122 is used to seal the receiving port 20 of the inner liner 2. A filling port 120 is provided on the cover body 122, and the filling port 120 leads to the inner liner 2. There is a cover on the filling port 120, and the filling port 120 can be a bottle mouth structure. The cover is screwed on the filling port 120 by a thread. Of course, other structures are also possible. The cover body 122 is used to seal the receiving port 20 of the inner liner 2. The first side panel 13 is hinged to the cover body 122 by the first hinge 3. In other embodiments, such as Figure 15As shown, the box cover 500 is detachably connected to the first and second side panels of the outer box 1. When in use, the box cover 5 covers the top of the first and second side panels to seal the inner container, and the box cover 5 is fastened to the outer box 1 on all sides by locks. When not in use, the box cover 5 is removable and separated from the first and second side panels to become an independent unit. The structure of the box cover 500 is also basically the same as that of the box cover 5. When this type of container is folded, the folding structure of the first and second side panels of the outer box 1 is the same as the folding structure of the first and second side panels of the present embodiment. After the side panels are folded onto the base, the box cover 500 can be placed on top of the first and second side panels.

[0063] In addition, the outer frame 121 is a mesh frame and covers the outer surface of the cover 122 , and the filling port 120 on the cover 122 is arranged opposite to the mesh holes of the mesh frame.

[0064] Specifically, if Figure 2 、 Figure 9 As shown, the cover 122 has a protruding abutting boss 1221 on the side facing away from the outer frame 121. The abutting boss 1221 is circumferentially arranged and abuts against the top surface of the inner liner 2. The accommodating opening 20 of the inner liner 2 is a rectangular opening formed by the top surface of the inner liner 2. The abutting boss 1221 abuts against the top surface of the inner liner 2 to seal the accommodating opening 20. In other embodiments, the accommodating opening 20 can also have other shapes, and the abutting boss 1221 matches the top surface of the inner liner 2.

[0065] Further, such as Figure 9 As shown, a sealing member 1222 is provided on the abutting boss 1221. The sealing member 1222 is used to be clamped between the abutting boss 1221 and the top surface of the inner liner 2 when the abutting boss 1221 abuts against the top surface of the inner liner 2. The sealing member 1222 can be a rubber pad or other sealing sheet. The sealing member 1222 can be adhered to the abutting boss 1221, or a protrusion can be provided on the sealing member 1222 to snap into the abutting boss 1221. In this embodiment, a fixing bar 1223 is provided. The fixing bar 1223, the sealing bar, and the abutting boss 1221 are connected by screws or other fasteners. The sealing member 1222 is clamped and fixed between the fixing bar 1223 and the abutting boss 1221. The inner ring side of the sealing member 1222 is exposed outside the fixing strip 1223 and is held against the top surface of the inner liner 2, so that the sealing member 1222 is fixed more stably while the inner liner 2 is well sealed.

[0066] like Figure 2As shown, the inner liner 2 has two pairs of oppositely arranged side walls 21 and a bottom 22. The two pairs of oppositely arranged side walls 21 form the inner cavity of the inner liner 2 around the bottom 22. One of the multiple side walls 21 is provided with a recessed area 23 that is recessed toward the inner liner 2. The discharge port 24 is located in the recessed area 23, so that the discharge port 24 does not protrude outside the side wall 21 of the inner liner 2, thereby facilitating the placement of the inner liner 2 into the outer box 1 and allowing each inner liner 2 to be nested with each other. A valve is provided at the discharge port 24, through which the discharge port can be opened or closed. The side wall 21 with the recessed area 23 is a vertical wall, and the other side walls 21 are inclined walls that converge toward the bottom 22 of the inner liner 2. In other words, the discharge port 24 is provided on the vertical wall, and when the discharge port 24 is used during operation, it is more convenient to contact the discharge port 24. The remaining side walls 21 are inclined, which also allows multiple inner containers 2 to be stacked on each other after being removed from the outer box 1. In other embodiments, the four side walls 21 can also be inclined and converge toward the bottom 22 of the inner container 2.

[0067] In this embodiment, the inner liner 2 is rectangular as an example. In other embodiments, the inner liner 2 may also be cylindrical or have other shapes.

[0068] Further, such as Figure 1 As shown, each first side panel 13 is a long side panel, each second side panel 14 is a short side panel, and a flap 5 is disposed on one of the second side panels 14. The flap 5 is connected to the base 11 via a latch 7. The flap 5 can be used to block the drain port 24. When the flap 5 is opened, the drain port 24 can be directly accessed. In other embodiments, the inner container 2 has a drain port 24, and at least one of the first side panels 13 and the second side panels 14 is provided with a flap 5, with the drain port 24 facing and opposite the flap.

[0069] In addition, if Figure 1 As shown, each first side panel 13 and each second side panel 14 are mesh panels. Preferably, each first side panel 13 and each second side panel 14 can be metal mesh panels. The mesh panel structure makes the container lighter than a ton barrel. Pillars 112 and 113 can be metal pillars.

[0070] Furthermore, the top of the inner liner 2 is bent downward toward the outside of the inner liner 2 to form an outer canopy 26, and the first side panel 13 and the second side panel 14 are respectively engaged with their corresponding outer canopy 26. Each first side panel 13 has a first clip 134 protruding toward the inside of the outer box 1, and the first clip 134 supports the outer canopy 26. Each second side panel 14 has a second clip 143 protruding toward the inside of the outer box 1, and the second clip 143 is engaged with the long groove 270 of the outer canopy. When the inner liner 2 is loaded into the outer box 1, the two upper panels 141 are flipped toward the outside of the outer box 1 around the second hinge 140, and the inner liner 2 is inserted into the outer box. The first clip 134 supports the outer canopy, and then the two upper panels 141 are flipped into the outer box 1 to a vertical position, and the second clip 143 is engaged with the long groove 270 to position the inner liner 2. When taking out the inner liner 2 , the two upper plates 141 can be first flipped outward from the outer box 1 around the second hinge 140 to allow the second clip 143 to leave the long slot 270 , and then the inner liner 2 can be taken out.

[0071] In this embodiment, the first plate bodies of a pair of first side plates 13 and the second plate bodies of a pair of second side plates 14 can both clamp the inner liner. In other embodiments, the first plate bodies of a pair of first side plates 13 and the second plate bodies of a pair of second side plates 14 can also only have one pair of clamping inner liner.

[0072] 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.

[0073] 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.

[0074] 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 collapsible container, characterized in that: include: An outer box and an inner liner detachably disposed in the outer box, wherein the inner liner has a receiving opening opening facing upward; The outer box comprises a base, a box cover for sealing the receiving opening of the inner container, a pair of opposite first side panels and a pair of opposite second side panels foldably connected to the base, and adjacent first side panels and second side panels are connected to surround the base; Each of the first side panels has a first plate body that is operably rotated toward the inside of the outer box to clamp the inner container, and / or each of the second side panels has a second plate body that is operably rotated toward the inside of the outer box to clamp the inner container; When the first plate is operably rotated toward the inside of the outer box to clamp the inner container, each of the first side panels has a pair of oppositely disposed and spaced side prisms movably connected to the base, and a first plate clamped between the pair of side prisms, the first plate being hinged to the side prisms; and the first plate is operably fixedly connected to the side prisms, and the first plate is operably fixedly connected to an adjacent pair of the second side panels; When the first plate is fixedly connected to the side prism, the first plate is away from the inner container; when the first plate is fixed to the second side plate, the first plate portion is in contact with the inner container.

2. The foldable container according to claim 1, wherein: The upper end of the first plate is hinged to the side prism, and the first plate is operably rotated around the hinge between the first plate and the side prism.

3. The foldable container according to claim 2, wherein: The first plate body is locked or released with the side prism and the second side plate through a first linkage latch.

4. The foldable container according to claim 3, characterized in that: The second side plate has a second outer frame arranged around the second plate body, and the second outer frame is provided with a second insertion hole for inserting the first linkage latch.

5. The foldable container according to claim 1, wherein: When each of the second side panels has a second plate body operable to rotate toward the inside of the outer box and clamp the inner container; The second side panel comprises a second outer frame provided around the second panel, and an upper panel hinged to the second outer frame. The upper panel is located below the second panel, and the second panel is hinged to the second outer frame. The second panel is operable to rotate toward the inside of the outer box to clamp the inner container. When the second plate is fixed to the second outer frame, the second plate is away from the inner container; when the second plate is fixed to the first plate, the second plate is at least partially against the inner container.

6. The foldable container according to claim 5, characterized in that: The second plate body is connected with an upper rotating rod, a second linkage latch and a lower rotating rod from top to bottom; one end of the upper rotating rod and the lower rotating rod are both rotatably connected to the second plate body, and the other end is rotatably connected to the second outer frame; and the upper rotating rod and the lower rotating rod are both operably rotated around the connection point with the second outer frame toward the inside or outside of the outer box; the second linkage latch can be operably inserted into or pulled out of the first plate body and the second outer frame.

7. The foldable container according to claim 1, wherein: The box cover is hinged to one of the first side panels via a first hinge; the box cover comprises: an outer frame, a cover body connected to the outer frame, a filling port is provided on the cover body, and the cover body is used to seal the accommodating port of the liner; the first side panel is hinged to the cover body via the first hinge.

8. The foldable container according to claim 1, wherein: The top of the inner container is connected to each of the first side panels and each of the second side panels.

9. The foldable container according to claim 8, wherein: The top of the inner container is bent downward toward the outside of the inner container to form an outer edge, and the first side panel and the second side panel are respectively connected to the corresponding outer edges.

10. The foldable container according to claim 1, wherein: The box cover is detachably connected to the first side plate and the second side plate of the outer box.

11. The foldable container according to claim 1, wherein: A plurality of the inner containers can be nested with each other.

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