Folding box

The foldable box formed by one-piece molded PP hollow plastic sheet solves the problems of easy damage of cardboard packaging boxes and inconvenience of folding ordinary plastic boxes, provides a lightweight, waterproof and anti-aging packaging solution, and reduces transportation and storage costs.

CN223421152UActive Publication Date: 2025-10-10ZHONGSHAN JINMAI PLASTIC PACKAGING CO LTD
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Patent Information

Application Number
CN202422998039.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-10-10
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

Existing packaging boxes are generally made of cardboard, which is easily damaged and not waterproof, making it difficult to reuse. Ordinary plastic packaging boxes, although waterproof, are heavy and difficult to fold, resulting in high transportation and storage costs.

Method used

The box body is formed by one-piece molded PP hollow plastic sheet. The box body can switch between unfolded and folded states. It has the characteristics of waterproof, anti-static and anti-aging. The bottom plate structure is enhanced with ultrasonic welding and reinforced structure to enhance the connection stability.

Benefits of technology

A lightweight, durable, waterproof packaging box is achieved, which reduces transportation and storage costs, facilitates transportation and storage, prevents goods from getting wet, and is easy to fold and unfold for use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding type box which comprises a box body, the box body is defined by integrally-formed PP hollow plastic sheets, the box body comprises a front side plate, a left side plate, a rear side plate, a right side plate and a bottom plate structure, and the front side plate, the left side plate, the rear side plate and the right side plate are connected end to end. The bottom plate structure comprises a front bottom plate, a left bottom plate, a rear bottom plate and a right bottom plate, the front bottom plate is connected with the bottom side of the front side plate, the left bottom plate is connected with the bottom side of the left side plate, the rear bottom plate is connected with the bottom side of the rear side plate, the right bottom plate is connected with the bottom side of the right side plate, the left bottom plate is connected with the rear bottom plate, and the right bottom plate is connected with the front bottom plate. The box body can be switched between an unfolded state and a folded state, when the box body is in the unfolded state, the front side plate and the rear side plate are oppositely arranged at intervals, the left side plate and the right side plate are oppositely arranged at intervals, and the front bottom plate, the left bottom plate, the rear bottom plate and the right bottom plate all extend in the horizontal direction.
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Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a foldable box. Background Art

[0002] Existing packaging boxes are generally made of cardboard, which is easily damaged and not waterproof, making it difficult to reuse. For items that require waterproofing, a separate waterproof structure is required, which is inconvenient. While ordinary plastic packaging boxes are waterproof, they are heavy and difficult to fold, resulting in high storage and transportation costs.

[0003] Therefore, there is an urgent need for a foldable box to solve the above problems. Utility Model Content

[0004] This utility model aims to at least partially address one of the problems existing in the prior art. To this end, the utility model provides a foldable box, which utilizes an integrally molded PP hollow plastic sheet to enclose the box body. PP hollow plastic has the advantages of being lightweight, waterproof, anti-static, and aging-resistant, making the box more durable, lightweight, and easy to handle and transport. It also provides a waterproof effect, preventing the contents from getting wet. Furthermore, the box body can be switched between an unfolded state and a folded state, allowing the box to be stored in the folded state for transportation and storage, facilitating both transportation and storage. When the box is needed, the box body is unfolded.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A foldable box comprises a box body, which is formed by enclosing an integrally formed PP hollow plastic sheet, the box body comprising a front side panel, a left side panel, a rear side panel, a right side panel and a bottom panel structure, the front side panel, the left side panel, the rear side panel and the right side panel are connected end to end, the bottom panel structure comprises a front bottom panel, a left bottom panel, a rear bottom panel and a right bottom panel, the front bottom panel is connected to the bottom side of the front side panel, the left bottom panel is connected to the bottom side of the left side panel, the rear bottom panel is connected to the bottom side of the rear side panel, the right bottom panel is connected to the bottom side of the right side panel, the left bottom panel is connected to the rear bottom panel, and the right bottom panel is connected to the front bottom panel, the box body can be switched between an unfolded state and a folded state, and when the box body is in the unfolded state, the The front side panel is opposite to the rear side panel and is arranged at intervals, the left side panel and the right side panel are opposite to each other and are arranged at intervals, the front bottom panel, the left bottom panel, the rear bottom panel and the right bottom panel are all extended in the horizontal direction, the front side panel, the left side panel, the rear side panel, the right side panel and the bottom panel structure are enclosed to form a storage cavity, when the box body is in a folded state, the front side panel and the right side panel are located on a first plane, the rear side panel and the left side panel are located on a second plane, the first plane is arranged parallel to the second plane, the front side panel and the right side panel form a first flat plate, the rear side panel and the left side panel form a second flat plate, the front bottom panel, the left bottom panel, the rear bottom panel and the right bottom panel are all located between the first flat plate and the second flat plate.

[0007] Optionally, the left bottom plate includes a first left bottom plate portion and a second left bottom plate portion connected to each other, the second left bottom plate portion is connected to the left side of the rear bottom plate, and the right bottom plate includes a first right bottom plate main body portion and a second right bottom plate main body portion connected to each other, the second right bottom plate main body portion is connected to the right side of the front bottom plate, when the box body is in the expanded state, the first left bottom plate portion is located on the lower side of the left side of the front bottom plate, the second left bottom plate portion is located on the lower side of the left side of the rear bottom plate, the first right bottom plate portion is located on the lower side of the right side of the rear bottom plate, and the second right bottom plate portion is located on the lower side of the right side of the front bottom plate.

[0008] Optionally, the second left bottom plate portion and the left side portion of the rear bottom plate, and the second right bottom plate portion and the right side portion of the front bottom plate are both ultrasonically welded.

[0009] Optionally, there are multiple first ultrasonic welding points between the second left bottom plate portion and the left side portion of the rear bottom plate, and there are multiple second ultrasonic welding points between the second right bottom plate portion and the right side portion of the front bottom plate.

[0010] Optionally, the front bottom plate includes a front bottom plate body and a pressure plate portion connected to each other. When the box body is in the expanded state, the front bottom plate body is located on the front side of the rear bottom plate and is coplanar with the rear bottom plate, and the pressure plate portion is located on the upper side of the rear bottom plate and abuts against the upper side of the rear bottom plate.

[0011] Optionally, a reinforcement structure is further included, and the reinforcement structure is arranged on the upper sides of the front side plate, the left side plate, the rear side plate and the right side plate.

[0012] Optionally, the reinforcement structure includes a corner bar and a hinge, the upper sides of the front side panel, the left side panel, the rear side panel and the right side panel are all covered with a corner bar, and two adjacent corner bars are hingedly connected by the hinge.

[0013] Optionally, the box body further includes a connecting plate, which is arranged on a side of the rear side plate away from the left side plate, and the connecting plate is ultrasonically welded to the inner side of the rear end portion of the right side plate.

[0014] Optionally, a handle is further included, and a handle opening is provided on the upper portion of the left side plate and the right side plate, and the handle is installed on the hole wall of the handle opening.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] The foldable box provided by this utility model utilizes an integrally molded PP hollow plastic sheet to enclose the box body. PP hollow plastic is lightweight, waterproof, anti-static, and aging-resistant, making the box more durable, lightweight, and easy to handle and transport. It also provides a waterproof effect, preventing the contents from getting wet. Furthermore, the box body can be switched between an unfolded and folded state, allowing the box to be stored in the folded state for transport and storage, facilitating both transportation and storage. When the box is needed, the box body is unfolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of a foldable box provided by a specific embodiment of the utility model at one angle (in unfolded state);

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the foldable box provided by a specific embodiment of the utility model from another angle (in the unfolded state);

[0019] Figure 3 This is a schematic diagram of the unfolding of the box body of the foldable box provided by a specific embodiment of the utility model;

[0020] Figure 4This is a three-dimensional structural diagram of a foldable box provided by a specific embodiment of the utility model at one angle (folded state);

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the foldable box provided by a specific embodiment of the utility model from another angle (folded state).

[0022] In the picture:

[0023] 11. Front side panel; 12. Rear side panel; 13. Left side panel; 14. Right side panel; 15. Bottom panel structure; 151. Front bottom panel; 1511. Front bottom panel body; 1512. Pressing plate; 152. Rear bottom panel; 153. Left bottom panel; 1531. First left bottom panel portion; 1532. Second left bottom panel portion; 154. Right bottom panel; 1541. First right bottom panel portion; 1542. Second right bottom panel portion; 16. Connecting plate; 171. Third ultrasonic welding point; 172. Second ultrasonic welding point; 173. First ultrasonic welding point; 18. Handle opening; 10. Storage cavity;

[0024] 2. Strengthen the structure; 21. Corner strip; 22. Hinge;

[0025] 3. Handle. DETAILED DESCRIPTION

[0026] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0027] Please refer to Figure 1-Figure 5The utility model provides a foldable box, including a box body, which is formed by enclosing an integrally formed PP hollow plastic sheet. The box body includes a front side panel 11, a left side panel 13, a rear side panel 12, a right side panel 14 and a bottom panel structure 15. The front side panel 11, the left side panel 13, the rear side panel 12 and the right side panel 14 are connected end to end. The bottom panel structure 15 includes a front bottom panel 151, a left bottom panel 153, a rear bottom panel 152 and a right bottom panel 154. The front bottom panel 151 is connected to the bottom side of the front side panel 11, the left bottom panel 153 is connected to the bottom side of the left side panel 13, the rear bottom panel 152 is connected to the bottom side of the rear side panel 12, the right bottom panel 154 is connected to the bottom side of the right side panel 14, the left bottom panel 153 is connected to the rear bottom panel 152, and the right bottom panel 154 is connected to the front bottom panel 151. The box body can be switched between an unfolded state and a folded state. When the box body is in the unfolded state, the front side panel 11 and the rear side panel 12 are opposite to and spaced apart from each other, the left side panel 13 and the right side panel 14 are opposite to and spaced apart from each other, the front bottom panel 151, the left bottom panel 153, the rear bottom panel 152, and the right bottom panel 154 are all extended in the horizontal direction, and the front side panel 11, the left side panel 13, the rear side panel 12, the right side panel 14 and the bottom panel structure 15 are enclosed to form a storage cavity 10. When the box body is in the folded state, the front side panel 11 and the right side panel 14 are located in a first plane, the rear side panel 12 and the left side panel 13 are located in a second plane, the first plane is parallel to the second plane, the front side panel 11 and the right side panel 14 form a first flat plate, the rear side panel 12 and the left side panel 13 form a second flat plate, and the front bottom panel 151, the left bottom panel 153, the rear bottom panel 152, and the right bottom panel 154 are all located between the first flat plate and the second flat plate.

[0028] The foldable box provided by this utility model is constructed from a single-piece, hollow PP plastic sheet, forming the box body. PP hollow plastic is lightweight, waterproof, anti-static, and age-resistant, making the box durable, lightweight, and easy to transport. It also provides waterproofing, preventing the contents from getting wet. Furthermore, the box body can be switched between an unfolded and folded state, allowing the box to be stored in the folded state for transport and storage. When the box is ready for use, the box body is unfolded.

[0029] Optionally, the left bottom plate 153 comprises a first left bottom plate portion 1531 and a second left bottom plate portion 1532 connected with each other, the second left bottom plate portion 1532 is connected with the left side portion of the rear bottom plate 152, the right bottom plate 154 comprises a first right bottom plate portion 1541 and a second right bottom plate portion 1542 connected with each other, the second right bottom plate portion 1542 is connected with the right side portion of the front bottom plate 151, when the box body is in the unfolded state, the first left bottom plate portion 1531 is located at the lower side of the left side portion of the front bottom plate 151, the second left bottom plate portion 1532 is located at the lower side of the left side portion of the rear bottom plate 152, the first right bottom plate portion 1541 is located at the lower side of the right side portion of the rear bottom plate 152, and the second right bottom plate portion 1542 is located at the lower side of the right side portion of the front bottom plate 151, so as to realize the connection of the bottom plate structure 15 and facilitate the folding of the bottom plate structure 15.

[0030] Optionally, the second left bottom plate portion 1532 and the left side portion of the rear bottom plate 152, and the second right bottom plate portion 1542 and the right side portion of the front bottom plate 151 are connected by ultrasonic welding, so that the structure is simple and the connection stability is good.

[0031] Optionally, the second left bottom plate portion 1532 and the left side portion of the rear bottom plate 152, and the second right bottom plate portion 1542 and the right side portion of the front bottom plate 151 are connected by ultrasonic welding, so that the structure is simple and the connection stability is good.

[0032] Optionally, the second left bottom plate portion 1532 and the left side portion of the rear bottom plate 152, and the second right bottom plate portion 1542 and the right side portion of the front bottom plate 151 are connected by ultrasonic welding, so that the structure is simple and the connection stability is good.

[0033] Optionally, the front bottom plate 151 comprises a front bottom plate body 1511 and a pressing plate portion 1512 connected with each other, when the box body is in the unfolded state, the front bottom plate body 1511 is located at the front side of the rear bottom plate 152 and is coplanar with the rear bottom plate 152, and the pressing plate portion 1512 is located at the upper side of the rear bottom plate 152 and abuts against the upper side of the rear bottom plate 152, by arranging the pressing plate portion 1512, the strength of the bottom plate structure 15 is further enhanced.

[0034] Optionally, the front bottom plate 151 comprises a front bottom plate body 1511 and a pressing plate portion 1512 connected with each other, when the box body is in the unfolded state, the front bottom plate body 1511 is located at the front side of the rear bottom plate 152 and is coplanar with the rear bottom plate 152, and the pressing plate portion 1512 is located at the upper side of the rear bottom plate 152 and abuts against the upper side of the rear bottom plate 152, by arranging the pressing plate portion 1512, the strength of the bottom plate structure 15 is further enhanced.

[0035] Optionally, the box body further includes a connecting plate 16, which is arranged on the side of the rear side plate 12 away from the left side plate 13. The connecting plate 16 and the inner side of the rear end of the right side plate 14 are ultrasonically welded, which has a simple structure and good connection stability.

[0036] Optionally, a plurality of third ultrasonic welding points 171 are provided between the connecting plate 16 and the inner side of the rear end portion of the right side plate 14 to improve the connection stability between the connecting plate 16 and the inner side of the rear end portion of the right side plate 14 .

[0037] Optionally, a handle 3 is further included, and a handle opening 18 is opened on the upper portion of the left side plate 13 and the right side plate 14, and the handle 3 is installed on the hole wall of the handle opening 18. In order to facilitate the user to carry the box through the handle 3.

[0038] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A foldable box, characterized in that: The invention comprises a box body, wherein the box body is formed by enclosing an integrally formed PP hollow plastic sheet, wherein the box body comprises a front side panel (11), a left side panel (13), a rear side panel (12), a right side panel (14) and a bottom plate structure (15), wherein the front side panel (11), the left side panel (13), the rear side panel (12) and the right side panel (14) are connected end to end, and the bottom plate structure (15) comprises a front bottom plate (151), a left bottom plate (153), a rear bottom plate (152) and a right bottom plate (154), wherein the front bottom plate (151) is connected to the left bottom plate (153). The bottom side of the front side panel (11) is connected, the left bottom panel (153) is connected to the bottom side of the left side panel (13), the rear bottom panel (152) is connected to the bottom side of the rear side panel (12), the right bottom panel (154) is connected to the bottom side of the right side panel (14), the left bottom panel (153) is connected to the rear bottom panel (152), and the right bottom panel (154) is connected to the front bottom panel (151). The box body can be switched between an unfolded state and a folded state. When the box body is in the unfolded state, the front side panel (11) is connected to the left bottom panel (153). The plate (11) and the rear side plate (12) are opposite to and spaced apart from each other, the left side plate (13) and the right side plate (14) are opposite to and spaced apart from each other, the front bottom plate (151), the left bottom plate (153), the rear bottom plate (152), and the right bottom plate (154) are all extended in the horizontal direction, and the front side plate (11), the left side plate (13), the rear side plate (12), the right side plate (14) and the bottom plate structure (15) are enclosed to form a storage cavity (10). When the box body is in a folded state, The front side panel (11) and the right side panel (14) are located in a first plane, the rear side panel (12) and the left side panel (13) are located in a second plane, the first plane and the second plane are arranged in parallel, the front side panel (11) and the right side panel (14) form a first flat plate, the rear side panel (12) and the left side panel (13) form a second flat plate, and the front bottom panel (151), the left bottom panel (153), the rear bottom panel (152), and the right bottom panel (154) are all located between the first flat plate and the second flat plate.

2. The foldable box according to claim 1, wherein: The left bottom plate (153) includes a first left bottom plate portion (1531) and a second left bottom plate portion (1532) connected to each other, the second left bottom plate portion (1532) is connected to the left side of the rear bottom plate (152), and the right bottom plate (154) includes a first right bottom plate portion (1541) and a second right bottom plate portion (1542) connected to each other, the second right bottom plate portion (1542) is connected to the right side of the front bottom plate (151), when the box body is in the expanded state, the first left bottom plate portion (1531) is located on the lower side of the left side of the front bottom plate (151), the second left bottom plate portion (1532) is located on the lower side of the left side of the rear bottom plate (152), the first right bottom plate portion (1541) is located on the lower side of the right side of the rear bottom plate (152), and the second right bottom plate portion (1542) is located on the lower side of the right side of the front bottom plate (151).

3. The foldable box according to claim 2, wherein: The second left bottom plate portion (1532) and the left side portion of the rear bottom plate (152), as well as the second right bottom plate portion (1542) and the right side portion of the front bottom plate (151) are both welded by ultrasonic welding.

4. The foldable box according to claim 3, wherein: There are multiple first ultrasonic welding points (173) between the second left bottom plate portion (1532) and the left side portion of the rear bottom plate (152), and there are multiple second ultrasonic welding points (172) between the second right bottom plate portion (1542) and the right side portion of the front bottom plate (151).

5. The foldable box according to claim 1, wherein: The front bottom plate (151) includes a front bottom plate body (1511) and a pressure plate portion (1512) that are connected to each other. When the box body is in the expanded state, the front bottom plate body (1511) is located on the front side of the rear bottom plate (152) and is coplanar with the rear bottom plate (152), and the pressure plate portion (1512) is located on the upper side of the rear bottom plate (152) and abuts against the upper side of the rear bottom plate (152).

6. The foldable box according to any one of claims 1 to 5, characterized in that: It also includes a reinforcing structure (2), which is arranged on the upper sides of the front side plate (11), the left side plate (13), the rear side plate (12) and the right side plate (14).

7. The foldable box according to claim 6, wherein: The reinforcing structure (2) comprises a corner bar (21) and a hinge (22); the upper sides of the front side panel (11), the left side panel (13), the rear side panel (12) and the right side panel (14) are all covered with a corner bar (21); and two adjacent corner bars (21) are hingedly connected by the hinge (22).

8. The foldable box according to any one of claims 1 to 5, characterized in that: The box body further comprises a connecting plate (16), which is arranged on a side of the rear side plate (12) away from the left side plate (13), and the connecting plate (16) is ultrasonically welded to the inner side of the rear end portion of the right side plate (14).

9. The foldable box according to any one of claims 1 to 5, characterized in that: It also includes a handle (3), and the upper parts of the left side plate (13) and the right side plate (14) are both provided with a handle opening (18), and the handle (3) is installed on the hole wall of the handle opening (18).