Flexible freight bag

Through the design of the upper and lower frame linkage structure, combined with crane operation, the flexible container bag can be quickly unfolded and stored, solving the problem of irregular folding of the container bag and improving tensile strength and storage efficiency.

CN224257408UActive Publication Date: 2026-05-19QINGDAO PINGCHENG CONTAINER BAG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO PINGCHENG CONTAINER BAG CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing flexible container bags are irregular during folding, occupy a lot of space, and are time-consuming to fold manually, resulting in high labor costs and reduced practicality.

Method used

The structure features an upper and lower frame connected by a connecting rod. A crane lifts the upper frame to extend the connecting rod and open the container bag. After use, the crane releases the pull ring to retract the connecting rod and fold the container bag. Combined with the support of the mesh plate, this allows for quick storage.

Benefits of technology

It improves the tensile strength of container bags, preventing them from collapsing, and enables quick and convenient folding and storage through mechanized operations, saving labor time and costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224257408U_ABST
    Figure CN224257408U_ABST
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Abstract

The utility model discloses a flexible freight bag which comprises an upper frame and a lower frame, and further comprises that the upper frame and the lower frame are connected through four sets of symmetrical first connecting rods and second connecting rods, and the upper frame and the lower frame are connected through four sets of third connecting rods and fourth connecting rods. During use, the upper frame is lifted by a crane through the pull rings, the lower frame is still on the ground under the action of gravity, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are stretched, the container bag is opened, the first connecting rod and the second connecting rod play a role in supporting the container bag, the tensile capacity of the container bag can be improved, collapse of the container bag is avoided, and the container bag is convenient to use. And then the container bag is used for storage, and the grid plate can also support the bottom of the container bag.
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Description

Technical Field

[0001] This utility model relates to the field of container bag technology, and in particular to a flexible container bag. Background Technology

[0002] FIBCs (Flexible Intermediate Bulk Containers) are a type of flexible transport packaging container that has the advantages of being moisture-proof, dust-proof, and radiation-resistant, and also has sufficient structural strength.

[0003] FIBCs are generally stored by folding to save storage space. However, if FIBCs are not folded neatly, they will take up a lot of space and be inconvenient to store. In practice, FIBCs are generally large in size, and it is inconvenient to fold them manually. It takes a long time to fold the FIBC neatly, which consumes a lot of labor and time costs and reduces their practicality.

[0004] Therefore, it is necessary to provide a flexible container bag to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a flexible container bag.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible container bag includes an upper frame and a lower frame, and further includes: the upper frame and the lower frame are connected by four sets of symmetrical connecting rods 1 and 2, and the upper frame and the lower frame are connected by four sets of connecting rods 3 and 4.

[0008] The four corners of the upper frame are respectively connected to a pair of connecting rods one by pin hinges, one end of the pair of connecting rods one is respectively connected to a pair of connecting rods two by pin hinges, and the pair of connecting rods two are respectively connected to the lower frame by pin hinges.

[0009] The corresponding connecting rod three is connected to the lower frame via a pin hinge, one end of the corresponding connecting rod three is connected to the corresponding connecting rod four via a pin hinge, and one end of the corresponding connecting rod four is connected to the upper frame via a pin hinge.

[0010] Preferably, the upper edge of the container bag is fixedly connected to the upper frame, the lower edge of the container bag is fixedly connected to the lower frame, the lower frame is fixedly connected to a mesh plate, and the mesh plate is used to support the container bag.

[0011] Preferably, the upper four corners of the upper frame are respectively fixedly connected with corresponding pull rings.

[0012] Preferably, the material of the container bag is nylon.

[0013] Compared with related technologies, the beneficial effects of this utility model are:

[0014] 1. When in use, use a crane to lift the upper frame through the pull ring. Under the action of gravity, the lower frame remains on the ground, allowing connecting rods one, two, three, and four to extend, thus expanding the container bag. Connecting rods one and two provide support for the container bag, which can improve the tensile strength of the container bag and prevent it from collapsing. Then, use the container bag for storage, and the mesh plate can also support the bottom of the container bag.

[0015] 2. After use, release the crane's pull ring to retract connecting rods one, two, three, and four. Connecting rods three and four retract inwards towards the middle of the container bag, folding the container bag to complete its storage. Attached Figure Description

[0016] Figure 1 This is a diagram showing the working state of this utility model.

[0017] Figure 2 This is a diagram showing the working state of this utility model.

[0018] Figure 3 This is a diagram showing the working state of this utility model.

[0019] Figure 4 This is a schematic diagram of the connection structure of some parts of this utility model.

[0020] In the picture:

[0021] 1. Container bag, 2. Pull ring, 3. Upper frame, 4. Link 1, 5. Link 2, 6. Lower frame, 7. Link 3, 8. Link 4, 9. Mesh plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] A flexible container bag includes an upper frame 3 and a lower frame 6, and further includes: the upper frame 3 and the lower frame 6 are connected to the second frame 5 by four sets of symmetrical connecting rods 1 4, and the upper frame 3 and the lower frame 6 are connected to the fourth frame 8 by four sets of connecting rods 3 7.

[0024] The four corners of the upper frame 3 are respectively connected to a pair of connecting rods 1 4 by pin hinges, one end of the pair of connecting rods 1 4 is respectively connected to a pair of connecting rods 2 5 by pin hinges, and the pair of connecting rods 2 5 is respectively connected to the lower frame 6 by pin hinges.

[0025] The corresponding connecting rod 3 7 is connected to the lower frame 6 by a pin hinge, one end of the corresponding connecting rod 3 7 is connected to the corresponding connecting rod 4 8 by a pin hinge, and one end of the corresponding connecting rod 4 8 is connected to the upper frame 3 by a pin hinge.

[0026] The upper edge of the container bag 1 is fixedly connected to the upper frame 3, and the lower edge of the container bag 1 is fixedly connected to the lower frame 6. The lower frame 6 is fixedly connected to the mesh plate 9, and the mesh plate 9 is used to support the container bag 1.

[0027] The upper frame 3 has four fixed pull rings 2 at its upper corners.

[0028] The container bag 1 is made of nylon.

[0029] Working principle: This device can fold and unfold the container bag 1 through corresponding connecting rods 1-4, 2-5, 3-7, and 4-8. In use, a crane is used to lift the upper frame 3 via the pull ring 2. Under the action of gravity, the lower frame 6 remains on the ground, causing the corresponding connecting rods 1-4, 2-5, 3-7, and 4-8 to extend. The specific movement is as follows: Figure 3 , Figure 2 and Figure 1 As shown, the container bag 1 is opened, and the connecting rod 4 and the connecting rod 5 support the container bag 1, which can improve the tensile strength of the container bag 1 and prevent the container bag 1 from collapsing. Then the container bag 1 is used for storage, and the mesh plate 9 can also support the bottom of the container bag 1.

[0030] After use, the crane should release the pull ring 2. Figure 2 and Figure 3 As shown, the corresponding pair of connecting rods 1-4 and 2-5, and connecting rods 3-7 and 4-8 retract, causing connecting rods 3-7 and 4-8 to retract inwards towards the middle of the container bag 1, thus folding the container bag 1. Figure 3 As shown, the container bag 1 is now complete.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flexible container bag, comprising an upper frame (3) and a lower frame (6), characterized in that, The flexible container bag also includes: The upper frame (3) and the lower frame (6) are connected to the second link (5) by four sets of symmetrical connecting rods one (4), and the upper frame (3) and the lower frame (6) are connected to the fourth link (8) by four sets of connecting rods three (7). The four corners of the upper frame (3) are respectively connected to a pair of connecting rods (4) by pin hinges, one end of the pair of connecting rods (4) is respectively connected to a pair of connecting rods (5) by pin hinges, and the pair of connecting rods (5) is respectively connected to the lower frame (6) by pin hinges. The corresponding connecting rod three (7) is connected to the lower frame (6) by a pin hinge, one end of the corresponding connecting rod three (7) is connected to the corresponding connecting rod four (8) by a pin hinge, and one end of the corresponding connecting rod four (8) is connected to the upper frame (3) by a pin hinge.

2. The flexible container bag according to claim 1, characterized in that, The upper edge of the container bag (1) is fixedly connected to the upper frame (3), the lower edge of the container bag (1) is fixedly connected to the lower frame (6), the lower frame (6) is fixedly connected to the grid plate (9), and the grid plate (9) is used to support the container bag (1).

3. The flexible container bag according to claim 1, characterized in that, The upper four corners of the upper frame (3) are respectively fixedly connected to the corresponding pull rings (2).

4. The flexible container bag according to claim 2, characterized in that, The container bag (1) is made of nylon.