Foldable insulated box and its folding method

Abstract

This invention discloses a foldable insulated box and its folding method. The foldable insulated box includes six baffles for assembling into a cuboid with six sides. In the assembled state, the bottom baffle is supported under the four side baffles, and the top baffle covers the four side baffles. When folded, the bottom baffle is at the bottom, the rear baffle is stacked on top of the bottom baffle with its inner surface facing down, the left and right baffles are stacked together with their outer surfaces facing down and pressed against the rear baffle, the top baffle is pressed against the left or right baffle with its outer surface facing down, and the front baffle is pressed against the top baffle with its inner surface facing down. The canvas bag is directly sewn from canvas material, which has low requirements for production processes, thus greatly reducing the manufacturing cost of the foldable insulated box. After disassembling the insulated box, the six baffles can be stacked vertically layer by layer, minimizing the volume occupied by the insulated box in the folded state and saving transportation costs.

Description

Technical Field

[0001] This invention relates to a foldable insulated box and its folding method, particularly a foldable insulated box for storing dry ice and its folding method. Background Art

[0002] Dry ice is solid carbon dioxide, with extremely low temperatures and high volatility. It's also quite heavy, so the requirements for dry ice coolers are quite high. Coolers used to store dry ice typically use a PE material rotationally molded outer shell, filled with PU foam. This process is complex and costly. Furthermore, the coolers are generally large; since they cannot be folded, they are often transported back empty after the dry ice has arrived at its destination, taking up considerable space and resulting in high transportation costs. Additionally, deformation of the cooler walls or internal bulges will affect the packing capacity. In particular, if the outer shell is damaged during use, water can seep into the PU insulation, destroying the entire cooler and rendering it unusable for repair.

[0003] While foldable insulated boxes are available on the market, most are connected by zippers or hinges. These boxes offer very poor sealing, allowing dry ice to evaporate rapidly through the gaps in the zippers and hinges, making them unsuitable for storing dry ice. Furthermore, zipper connections require disassembling the side panels to fold, making assembly and folding cumbersome and resulting in misaligned panels. Hinged connections lack sufficient space for folding, often requiring only two or three panels to fold, effectively dividing the box into several parts that fold separately, further hindering ease of assembly and folding.

[0004] There is another type of insulated box with aluminum foil structure. Usually, only the lid can be removed, and the body of the box cannot be folded. Moreover, aluminum foil is very easy to break and has poor rigidity. Therefore, it is generally very small in size and is usually only used as a box for food delivery. It is not suitable for industrial use, let alone for transporting dry ice. Therefore, no one uses aluminum foil insulated boxes to store dry ice. Summary of the Invention

[0005] This invention provides a foldable insulated box and its folding method, which has low manufacturing cost, is easy to fold, recyclable, and has good sealing performance. The technical solution adopted by this invention to solve its technical problem is as follows:

[0006] The foldable insulated box includes six partition panels for assembling into a cuboid with six sides. These panels are divided into a front partition panel, a rear partition panel, a left partition panel, a right partition panel, a bottom partition panel, and a top partition panel. Each partition panel includes an insulation board and a canvas bag for storing the insulation board. The six partition panels can be unfolded and laid flat on the ground, with adjacent partition panels connected by canvas connecting pieces. The canvas bags of the six partition panels are integrated and cannot be detached. In the assembled state, the bottom partition panel is supported under the four side partition panels. The inner and outer sides of the seams between the side panels are either covered by the canvas connecting piece or by an additional canvas edging. Similarly, the inner and outer sides of the seams between two adjacent side panels are either covered by the canvas connecting piece or by an additional canvas edging. The top panel covers the four side panels, and the outer side of the seam between the top panel and the side panels is either covered by the canvas connecting piece or by an additional canvas edging. In the folded state, the six panels are stacked together vertically, one layer at a time.

[0007] The folding insulated box includes six panels that can be assembled into a cuboid with six sides. In the assembled state, the bottom panel is supported by the four side panels, and the top panel covers the four side panels. Each panel includes an insulation board and a canvas bag for storing the insulation board. The six panels can be unfolded and laid flat on the ground, and adjacent panels are connected by canvas connecting pieces. The canvas bags of the six panels are integrated and cannot be detached. The front panel... The baffle, bottom baffle, rear baffle, and top baffle are connected in a straight line. The left and right baffles are symmetrically located on the left and right sides of the rear baffle. When folded, the bottom baffle is at the bottom, the inner surface of the rear baffle is folded down on top of the bottom baffle, the outer surfaces of the left and right baffles are folded together and pressed against the rear baffle, the outer surface of the top baffle is pressed down on top of the left or right baffle, and the inner surface of the front baffle is pressed down on the top baffle.

[0008] Compared with the prior art, this technical solution has the following advantages:

[0009] 1. The inside of the enclosure is an insulation board, and the outer surface is covered with a canvas bag to cover the insulation board. The structure is very simple. The canvas bag is directly sewn from canvas material, which requires very low production process and thus greatly reduces the production cost of the foldable insulated box.

[0010] 2. The different baffles are connected by canvas bags, so that after the insulated box is disassembled, the six baffles can be stacked vertically layer by layer, which minimizes the volume occupied by the insulated box when folded. When transporting the insulated box alone, the space occupied by the insulated box can be greatly reduced, thereby saving transportation costs, especially for long-distance and ocean transportation. If the insulated box is not foldable, three containers would originally be needed.

[0011] 3. Canvas bags are wear-resistant, have a long service life, and stable performance. Their smooth surface does not affect the ice capacity. When the insulation board is damaged, it can be replaced separately, meaning the canvas bags can be reused, making them more environmentally friendly. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and examples.

[0013] Figure 1 A schematic diagram is shown of the foldable insulated box in its flat state.

[0014] Figure 2 A schematic diagram illustrating the assembly process of the foldable insulated box is shown (the front, rear, and left side panels are supported by the bottom panel).

[0015] Figure 3 A schematic diagram illustrating the assembly process of the foldable insulated box is shown (the right side panel is also supported by the bottom panel).

[0016] Figure 4 The illustration shows the process of pulling up the canvas cover of the collapsible insulated box.

[0017] Figure 5 A schematic diagram of the canvas cover for a collapsible insulated box is shown.

[0018] Figure 6 The illustration shows the canvas cover of the collapsible insulated box after it has been pulled up.

[0019] Figure 7 The illustration shows the canvas cover and baffle of a collapsible insulated box combined together.

[0020] Figure 8 A schematic diagram is shown illustrating the connection between the left and right side coverings of a collapsible insulated box.

[0021] Figure 9 A schematic diagram illustrating the folding process of the collapsible insulated box is shown.

[0022] Figure 10 The illustration shows a canvas cover covering stacked hoarding panels.

[0023] Figure 11 A cross-sectional schematic diagram of the fence panel is shown. Detailed Implementation

[0024] Please refer to Figures 1 to 11 Foldable insulated boxes are used to store dry ice, enabling long-distance transport of dry ice. They can be laid completely flat on the ground (e.g., Figure 1 As shown), it can be grown into a cuboid structure for storage, and can also be folded (as shown). Figure 9 , 10 The collapsible insulated box includes six partition panels 10 for assembling into a cuboid with six sides. The cuboid also includes a cube, meaning all six partition panels are identical in size and shape. Understandably, the six partition panels 10 are: front partition panel 10-1, rear partition panel 10-2, left partition panel 10-3, right partition panel 10-4, bottom partition panel 10-5, and top partition panel 10-6. Each partition panel 10 includes an insulation board 12 and a canvas bag 14 for storing the insulation board (e.g., [missing information]). Figure 11 As shown, the inner cavity of the canvas bag is just right to hold the insulation board.

[0025] The six enclosure panels 10 can be unfolded and laid flat on the ground, and adjacent enclosure panels are connected by canvas connecting pieces 20. That is, canvas bags 14 are connected to each other by canvas connecting pieces 20, so that the canvas bags of the six enclosure panels are connected as one unit and cannot be separated. This can prevent any enclosure panel 10 from being lost. At the same time, the relationship between the six enclosure panels is fixed and the connection position will not be confused, which is convenient for workers to assemble.

[0026] In the assembled state, the bottom panel 10-5 is supported under the four side panels. The inner and outer sides of the seam between the bottom panel and the side panels are either covered by the canvas connecting piece 20 or by the canvas overlay 30. Similarly, the inner and outer sides of the seam between two adjacent side panels are either covered by the canvas connecting piece 20 or by the canvas overlay 30. The top panel 10-6 covers the four side panels. The outer side of the seam between the top panel and the side panels is either covered by the canvas connecting piece 20 or by the canvas overlay 30. In other words, since adjacent panels are connected by the canvas connecting piece 20, the canvas connecting piece 20 itself can cover the seam. For positions without a canvas connecting piece, a canvas overlay 30 is used to cover the seam, ensuring that both the inner and outer sides of the seam are covered, thus improving the seal.

[0027] In the folded state, the six enclosure panels 10 are stacked together vertically, one layer at a time.

[0028] Preferably, the system also includes a canvas cover 40, which comprises four canvas pieces 42: a front canvas piece 42-1, a rear canvas piece 42-2, a left canvas piece 42-3, and a right canvas piece 42-4. These four canvas pieces correspond to the four side panels, and the lower edges of the canvas pieces 42 are sewn together with the canvas bag 14 of the bottom panel 10-5. In the assembled state, the four canvas pieces 42 are positioned around the outside of the four side panels 10. In the folded state, the bottom panel 10-5 is placed at the bottom, and the four canvas pieces 42 cover all six panels 10. When storing dry ice, the canvas cover 40 can enclose the surrounding panels 10, thereby further improving the insulation performance. It also provides constraint to the surrounding panels 10, effectively preventing misalignment between them and improving the structural stability of the insulated box. When folding, the six baffles can be directly covered with the canvas cover 40 to prevent them from falling apart, which is very convenient.

[0029] Preferably, when the six enclosure panels 10 are unfolded and laid flat on the ground, the front enclosure panel 10-1, the bottom enclosure panel 10-5, the rear enclosure panel 10-2, and the top enclosure panel 10-6 are connected in a straight line in sequence. The left enclosure panel 10-3 and the right enclosure panel 10-4 are symmetrically located on the left and right sides of the rear enclosure panel 10-2. The two sides of the canvas piece 42-1 located on the front side are sewn together with the sides of the two canvas pieces 42-3 and 42-4 on the left and right sides, respectively. In the assembled state, the upper edge of the front canvas piece 42-1 folds over to the inner surface of the front baffle 10-1 and connects to the canvas bag 14 of the front baffle via Velcro. The upper edge of the left canvas piece 42-3 folds over to the inner surface of the left baffle 10-3 and connects to the canvas bag of the left baffle via Velcro. The upper edge of the right canvas piece 42-4 folds over to the inner surface of the right baffle 10-4 and connects to the canvas of the right baffle via Velcro. The rear canvas piece 42-2 is connected to the canvas bag of the top baffle 10-6 via a fastener. Since the left baffle 10-3 and the right baffle 10-4 are symmetrically located on the left and right sides of the rear baffle 10-2, during assembly, after placing the front and rear baffles on the bottom baffle, rotating the left and right baffles completes the assembly of the four side panels, making the operation simpler. In addition, the front canvas piece 42-1 is sewn together with the two canvas pieces 42-3 and 42-4 on the left and right sides, making it easier to open and fold the canvas cover 40, while also improving its strength.

[0030] Preferably, in the folded state, the bottom baffle 10-5 is at the bottom, the inner surface of the rear baffle 10-2 is stacked on top of the bottom baffle 10-5 with its inner surface facing down, the outer surfaces of the left baffle 10-3 and the right baffle 10-4 are stacked together with their outer surfaces facing down and pressed against the rear baffle 10-2 (either the left baffle or the right baffle can be on top), the outer surface of the top baffle 10-6 is pressed against the left or right baffle with its outer surface facing down, and the front baffle 10-1 is at the top with its inner surface facing down and pressing against the top baffle 10-6. Therefore, the width of the canvas connecting piece 20 between the bottom fencing 10-5 and the rear fencing 10-2 must ensure that the bottom fencing and the rear fencing can fit together flat. The width of the canvas connecting piece 20 between the left fencing 10-3 / right fencing 10-4 and the top of the rear fencing 10-2 must ensure that the left fencing / right fencing and the rear fencing can fit together flat. The width of the canvas connecting piece 20 between the top fencing 10-6 and the rear fencing 10-2 must ensure that the top fencing and the left fencing / right fencing can fit together flat. The width of the canvas connecting piece 20 between the front fencing 10-1 and the bottom fencing 10-5 must ensure that the front fencing and the bottom fencing can fit together flat.

[0031] Preferably, a left-side covering fabric 50-1 of canvas material is sewn onto the middle of the outer surface of the left canvas piece 42-3, and a right-side covering fabric 50-2 of canvas material is sewn onto the middle of the outer surface of the right canvas piece 42-4. In the assembled state, the left-side covering fabric 50-1 covers the upper half of the left side panel 10-3 and the left side of the top side panel 10-6, and the right-side covering fabric 50-2 covers the upper half of the right side panel 10-4 and the right side of the top side panel 10-6. The free ends of the left-side covering fabric 50-1 and the right-side covering fabric 50-2 are tied together. The connection between the left-side covering fabric 50-1 and the right-side covering fabric 50-2 not only makes the insulation box more tightly wrapped, but also improves the pressure resistance and deformation resistance of the two side panels.

[0032] Preferably, a piece of canvas material, left side pad 60-1, is sewn onto the center of the inner surface of the canvas bag of the left side baffle 10-3, and a piece of canvas material, right side pad 60-2, is sewn onto the center of the inner surface of the canvas bag of the right side baffle 10-4. In the assembled state, the left side pad 60-1 and the right side pad 60-2 are stacked together and laid on the bottom baffle 10-5. The left side pad 60-1 and the right side pad 60-2 can improve the sealing performance of the bottom of the insulated box, and have a better sealing effect when filling with granular dry ice.

[0033] Preferably, for the seam between the two enclosure panels 10, one side of the canvas overlay 30 is sewn onto the canvas bag 14 of one enclosure panel, and the other side is connected to the canvas bag 14 of the other enclosure panel via Velcro. To improve the sturdiness of the insulated box after assembly, additional connecting buckles can be added outside the seam for connection.

[0034] Preferably, the canvas bag 14 of the enclosure 10 is equipped with a zipper, which can be opened to remove the insulation board 12. More preferably, the insulation board 12 is a foam board. More preferably, the inner surface of the canvas bag 14 is provided with a waterproof layer, at least on the surface in contact with dry ice. The waterproof layer can be bonded to the canvas bag 14 by pressing or pasting, or by spraying, thereby improving the insulation effect.

[0035] In this embodiment, the top surface of the front canvas piece 42-1 is connected to the top baffle 10-6 by Velcro, and the canvas overlay 30 connected to the periphery of the top baffle 10-6 is connected to the canvas cover 40 by a connecting buckle.

[0036] In its assembled state, the foldable insulated box of the present invention has a bottom baffle 10-5 supported below the four side baffles, and a top baffle 10-6 covering the four side baffles. When folded, the bottom baffle 10-5 is at the bottom, the rear baffle 10-2 is stacked on top of the bottom baffle 10-5 with its inner surface facing down, the left baffle 10-3 and right baffle 10-4 are stacked together with their outer surfaces facing down and pressed against the rear baffle 10-2, the top baffle 10-6 is pressed against the left or right baffle with its outer surface facing down, and the front baffle 10-1 presses down on the top baffle 10-6 with its inner surface facing down. Then, the canvas cover 40 is pulled upwards to wrap around the six stacked baffles 10 from all sides and above.

[0037] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A foldable insulated box for storing dry ice, comprising six partitions for assembling into a cuboid with six sides, consisting of a front partition, a rear partition, a left partition, a right partition, a bottom partition, and a top partition, characterized in that: Each of the aforementioned fencing panels includes an insulation board and a canvas bag for storing the insulation board. The six fencing panels can be unfolded and laid flat on the ground, with adjacent panels connected by canvas connecting pieces. The canvas bags of the six fencing panels are integrated and cannot be detached. When the six fencing panels are unfolded and laid flat on the ground, the front fencing panel, bottom fencing panel, rear fencing panel, and top fencing panel are connected sequentially in a straight line. The left and right fencing panels are symmetrically located on the left and right sides of the rear fencing panel. The fencing panel also includes a canvas cover, which consists of four canvas pieces (front, back, left, and right). These four canvas pieces correspond to the four side fencing panels. The lower edges of the canvas pieces are sewn to the canvas bag of the bottom fencing panel. The two sides of the front canvas piece are sewn to the sides of the left and right canvas pieces, respectively. In the assembled state, the bottom panel is supported beneath the four side panels. The inner and outer sides of the seams between the bottom and side panels are either covered by the canvas connecting piece or by additional canvas edging. Similarly, the inner and outer sides of the seams between two adjacent side panels are either covered by the canvas connecting piece or by additional canvas edging. The top panel covers the four side panels, and the outer side of the seam between the top and side panels is either covered by the canvas connecting piece or by additional canvas edging. The four canvas pieces are respectively wrapped around the outer sides of the four side panels. In the folded state, the six fencing panels are stacked together vertically, with the bottom fencing panel placed at the very bottom, and four canvas pieces covering the six fencing panels.

2. The foldable insulated box according to claim 1, characterized in that: The inner surface of the canvas bag is provided with a waterproof layer. In the assembled state, The top edge of the front canvas panel is folded up to the inner surface of the front panel and connected to the canvas bag of the front panel. The top edge of the left canvas panel is folded up to the inner surface of the left side panel and connected to the canvas bag of the left side panel. The top edge of the right canvas panel is folded up to the inner surface of the right side panel and connected to the canvas bag of the right side panel. The rear canvas panel is connected to the canvas bag of the top baffle.

3. The foldable insulated box according to claim 1, characterized in that: In the folded state, the bottom panel is at the bottom, the inner surface of the rear panel is stacked on top of the bottom panel with the inner surface facing down, the outer surfaces of the left and right panels are stacked together with the outer surfaces facing down and pressed against the top of the rear panel, the outer surface of the top panel is pressed against the top of the left or right panel with the outer surface facing down, and the front panel is at the top with its inner surface facing down and pressing against the top panel.

4. The foldable insulated box according to claim 1, characterized in that: A piece of canvas material is sewn onto the center of the outer surface of the left canvas piece to tighten the left side, and a piece of canvas material is sewn onto the center of the outer surface of the right canvas piece to tighten the right side. In the assembled state, the left side of the tight-fitting cloth covers the upper half of the left side panel and the left side of the top panel, and the right side of the tight-fitting cloth covers the upper half of the right side panel and the right side of the top panel. The free ends of the left and right sides of the tight-fitting cloth are tied together.

5. The foldable insulated box according to claim 1, characterized in that: A piece of canvas material is sewn onto the middle of the inner surface of the canvas bag on the left side panel, and a piece of canvas material is sewn onto the middle of the inner surface of the canvas bag on the right side panel. When assembled, the left and right pads are stacked together and laid on the bottom panel.

6. The foldable insulated box according to claim 1, characterized in that: For the seam between the two fencing panels, one side of the canvas overlay is sewn onto the canvas bag of one of the fencing panels, and the other side is connected to the canvas bag of the other fencing panel via Velcro.

7. The foldable insulated box according to claim 1, characterized in that: The canvas bag of the enclosure is equipped with a zipper. Opening the zipper allows you to remove the insulation board, which is a foam board.

8. A folding method for a foldable insulated box, the foldable insulated box comprising six baffles for assembling into a cuboid with six sides and a canvas cover, wherein in the assembled state, the bottom baffle is supported below the four side baffles, and the top baffle covers the four side baffles, characterized in that: Each of the aforementioned enclosure panels includes an insulation board and a canvas bag for storing the insulation board. The six enclosure panels can be unfolded and laid flat on the ground, with adjacent panels connected by canvas connecting pieces. The canvas bags of the six enclosure panels are integrated and cannot be detached. The front enclosure panel, bottom enclosure panel, rear enclosure panel, and top enclosure panel are connected sequentially in a straight line. The left and right enclosure panels are symmetrically located on the left and right sides of the rear enclosure panel. The lower edge of the canvas cover is sewn to the canvas bag of the bottom enclosure panel. The canvas cover includes four canvas pieces: front, back, left, and right. The two sides of the front canvas piece are sewn to the sides of the left and right canvas pieces, respectively. When storing dry ice, the canvas cover covers the surrounding enclosure panels. When folded, the bottom panel is at the bottom, the inner surface of the rear panel is folded down on top of the bottom panel, the outer surfaces of the left and right panels are folded together and pressed against the rear panel, the outer surface of the top panel is pressed down on top of the left or right panel, and the inner surface of the front panel is pressed down on the top panel. After the six panels are folded together vertically, the canvas cover is pulled up to wrap around the six folded panels from all sides and above.

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