Flexible freight bag

By introducing moisture-proof pads and reinforcing components into flexible container bags, the problem of material clumping or deterioration in humid environments has been solved, enabling dry storage and transportation of materials and improving material quality and transportation efficiency.

CN223990394UActive Publication Date: 2026-03-13盐城市嘉昊塑业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

When flexible container bags are used in humid or waterlogged environments, powdery materials are prone to clumping or deterioration, affecting material quality and increasing processing difficulty and cost.

Method used

A flexible container bag was designed, comprising a moisture-proof pad and reinforcing components. The moisture-proof pad is detachably connected to the container bag body via connecting components. The moisture-proof pad is made of polyurethane, which can isolate ground moisture. Combined with reinforcing components, it enhances support and load-bearing capacity.

Benefits of technology

It effectively prevents materials from getting damp, keeps them dry, ensures material quality, and reduces processing difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of flexible freight bags, and discloses a flexible freight bag which comprises a flexible freight bag body, the flexible freight bag body sequentially comprises a base layer and a wear-resistant layer from inside to outside, the flexible freight bag body is upwards provided with an opening, and a binding rope is arranged at the opening. The outer walls of the two opposite sides of the top of the flexible freight bag body are connected with hanging belts in a sewing mode, a reinforcing assembly used for reinforcing the supporting performance of the flexible freight bag body is arranged on the flexible freight bag body, a moisture-proof pad is arranged below the flexible freight bag body, and the shape of the moisture-proof pad is matched with that of the flexible freight bag body. The connecting assemblies are arranged on the reinforcing assemblies and the moisture-proof pad, the moisture-proof pad is detachably connected with the reinforcing assemblies through the connecting assemblies, and the moisture-proof pad made of polyurethane is excellent in waterproof and moisture-proof performance, resistant to abrasion and aging, long in service life and capable of effectively isolating ground moisture and protecting the flexible freight bag body and objects in the flexible freight bag body against moisture erosion.
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Description

Technical Field

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

[0002] Flexible container bags, often called ton bags or space bags, not only have sufficient strength and durability, but can also withstand the pressure of heavy loads. When used with cranes or forklifts, they can be used for unitized transportation. As an efficient and convenient packaging and transportation tool, flexible container bags are widely used in many fields such as chemical, food, mining, and agriculture.

[0003] Existing devices have some drawbacks during use. For example, flexible container bags need to be placed on the ground. If the ground is wet or waterlogged, placing the flexible container bags directly on the ground will cause the materials stored in the flexible container bags, especially powdery materials (such as cement, mineral powder, etc.), to clump or deteriorate in the wet or humid environment. This will not only affect the quality of the materials, but also increase the difficulty and cost of subsequent processing. Utility Model Content

[0004] The purpose of this utility model is to provide a flexible container bag that solves the problem that when flexible container bags are placed on the ground, if there is water or damp ground, the materials stored in the flexible container bag, especially powdery materials (such as cement, mineral powder, etc.), will clump or deteriorate in the watery or damp environment. This not only affects the quality of the materials, but also increases the difficulty and cost of subsequent processing.

[0005] This utility model provides the following technical solution: a flexible container bag, comprising a flexible container bag body, the flexible container bag body comprising, from the inside out, a base layer and a wear-resistant layer, the flexible container bag body having an opening facing upwards, a binding rope provided at the opening, and lifting straps sewn to the opposite outer walls of the top two sides of the flexible container bag body, a reinforcing component for enhancing the support of the flexible container bag body being provided on the flexible container bag body, a moisture-proof pad being provided below the flexible container bag body, the moisture-proof pad being shaped to fit the flexible container bag body, and a connecting component being provided on the reinforcing component and the moisture-proof pad, the moisture-proof pad being detachably connected to the reinforcing component through the connecting component.

[0006] As a preferred embodiment of the above technical solution, the reinforcing component includes two first reinforcing horizontal strips sewn laterally to the outer side wall of the flexible container bag body, and the two first reinforcing horizontal strips are respectively disposed on the upper and lower sides of the flexible container bag body. A second reinforcing horizontal strip is disposed between the two first reinforcing horizontal strips, and the second reinforcing horizontal strip is sewn to the outer side of the flexible container bag body.

[0007] As a preferred embodiment of the above technical solution, the reinforcing component includes two reinforcing vertical strips sewn to the lower end face of the flexible container bag body, and the two reinforcing vertical strips are arranged in a cross shape, with the two ends of the two reinforcing vertical strips respectively sewn to the corners corresponding to the outer side wall of the flexible container bag body.

[0008] As a preferred embodiment of the above technical solution, the connecting component includes first connecting straps sewn to the four corners of the top of the moisture-proof mat, each of the four first connecting straps being provided with a male buckle, and second connecting straps sewn to the four corners of the second reinforcing cross strap at positions corresponding to the four first connecting straps, each of the four second connecting straps being provided with a female buckle, and the same set of male and female buckles being used together.

[0009] As a preferred embodiment of the above technical solution, the base layer is woven from polypropylene.

[0010] As a preferred embodiment of the above technical solution, the wear-resistant layer is made of nylon weaving.

[0011] As a preferred embodiment of the above technical solution, the moisture-proof mat is made of polyurethane.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, by using a moisture-proof pad and connecting components to align and securely fasten the second reinforcing cross strap on the flexible container bag body with the first connecting strap on the moisture-proof pad, the installed moisture-proof pad can effectively isolate ground water and moisture, ensuring that the material remains dry during storage and transportation, avoiding various problems caused by moisture, such as clumping and deterioration of powdery materials, thereby ensuring the quality of the material and reducing the difficulty and cost of subsequent processing. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a flexible container bag;

[0015] Figure 2 This is a schematic diagram of a reinforcing component structure for a flexible container bag;

[0016] Figure 3 A schematic diagram of the moisture-proof pad structure for a flexible container bag;

[0017] Figure 4 This is a schematic diagram of the base layer and wear-resistant layer structure of a flexible container bag;

[0018] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 6 for Figure 3 Enlarged structural diagram at point B.

[0020] In the diagram: 10. Flexible Intermediate Bulk Container (FIBC) body; 11. Base layer; 12. Wear-resistant layer; 13. Opening; 14. Tie strap; 15. Lifting strap; 16. Moisture-proof pad; 2. Reinforcing components; 201. First reinforcing horizontal strap; 202. Second reinforcing horizontal strap; 203. Reinforcing vertical strap; 3. Connecting components; 301. First connecting strap; 302. Female buckle; 303. Second connecting strap; 304. Female buckle. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Example

[0023] like Figures 1-6 As shown, this utility model provides a technical solution: a flexible container bag, including a flexible container bag body 10. The flexible container bag body 10 includes a base layer 11 and a wear-resistant layer 12 from the inside out. The flexible container bag body 10 has an opening 13 facing upwards, and a binding rope 14 is provided at the opening 13. Suspension straps 15 are sewn onto the opposite outer walls of the top of the flexible container bag body 10. A reinforcing component 2 is provided on the flexible container bag body 10 to enhance its support. A moisture-proof pad 16 is provided below the flexible container bag body 10, and the shape of the moisture-proof pad 16 is adapted to the flexible container bag body 10. A connecting component 3 is provided on the reinforcing component 2 and the moisture-proof pad 16. The moisture-proof pad 16 is detachably connected to the reinforcing component 2 through the connecting component 3. The base layer 11 is woven from polypropylene, and the wear-resistant layer 12 is woven from nylon. In specific use, firstly... The moisture-proof pad 16 is detachably connected to the reinforcing component 2 via the connecting component 3. This detachable connection allows users to install and remove the pad as needed. The shape of the moisture-proof pad 16 is adapted to the flexible container bag body 10, ensuring comprehensive moisture protection. The flexible container bag body 10 is then placed on the ground with the bottom of the moisture-proof pad 16 in contact with the ground. The pad is then filled with material using a filling device. The material enters the flexible container bag body 10 through the opening 13. The reinforcing component 2 further enhances the support and load-bearing capacity of the flexible container bag body 10, enabling it to safely load and transport heavier items. After the material is loaded, the opening 13 is sealed by using the binding rope 14. The flexible container bag body 10 is then smoothly moved using a forklift or lifting equipment via two lifting straps 15 and placed in the designated location.

[0024] As one implementation method in this embodiment, such as Figure 1 , Figure 3 and Figure 5As shown, the reinforcing component 2 includes two first reinforcing horizontal strips 201 sewn laterally to the outer wall of the flexible container bag body 10, with the two first reinforcing horizontal strips 201 respectively disposed on the upper and lower sides of the flexible container bag body 10. A second reinforcing horizontal strip 202 is disposed between the two first reinforcing horizontal strips 201 and sewn to the outer side of the flexible container bag body 10. The reinforcing component 2 also includes two reinforcing vertical strips 203 sewn to the lower end face of the flexible container bag body 10, with the two reinforcing vertical strips 203 arranged in a cross shape. The two ends of the strong vertical straps 203 are sewn to the corners corresponding to the outer side walls of the flexible container bag body 10. In actual use, by setting the first reinforcing horizontal straps 201 on the upper and lower sides of the outer side walls of the flexible container bag body 10, and adding the second reinforcing horizontal straps 202 in between, the lateral load-bearing capacity of the flexible container bag body 10 is effectively enhanced. At the same time, the cross-shaped reinforcing vertical straps 203 are set on the lower end face and sewn to the corners of the outer side walls of the flexible container bag body 10, further improving the longitudinal strength and stability of the flexible container bag body 10.

[0025] As one implementation method in this embodiment, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the connecting component 3 includes first connecting straps 301 sewn to the four corners of the top of the moisture-proof mat 16. Each of the four first connecting straps 301 is equipped with a male buckle 302. Second connecting straps 303 are sewn to the four corners of the second reinforcing cross strap 202 at positions corresponding to the four first connecting straps 301. Each of the four second connecting straps 303 is equipped with a female buckle 304. The same set of male and female buckles 302 are used together. The moisture-proof mat 16 is made of polyurethane. In practical use, the moisture-proof mat 16 is first placed on the outer bottom of the flexible container bag body 10, and then... Align the four second reinforcing cross straps 202 on the flexible container bag body 10 with the corresponding four first connecting straps 301 on the moisture-proof mat 16, ensuring that each sub-buckle 302 matches the corresponding female buckle 304. Insert the sub-buckles 302 into the female buckles 304 one by one, ensuring that each sub-buckle 302 is tightly fastened into the female buckle 304, ensuring that the moisture-proof mat 16 is firmly installed. The polyurethane moisture-proof mat 16 not only has excellent waterproof and moisture-proof performance, but is also wear-resistant, aging-resistant, and has a long service life. It can effectively isolate ground moisture and protect the flexible container bag body 10 and its contents from moisture erosion.

[0026] Working principle: First, the moisture-proof mat 16 is placed on the bottom outer side of the flexible container bag body 10. Then, the four second reinforcing horizontal straps 202 on the flexible container bag body 10 are aligned with the corresponding four first connecting straps 301 on the moisture-proof mat 16, ensuring that each sub-buckle 302 matches the corresponding female buckle 304. The sub-buckles 302 are inserted into the female buckles 304 one by one, ensuring that each sub-buckle 302 is tightly fastened to the female buckle 304, ensuring that the moisture-proof mat 16 is firmly installed. After the moisture-proof mat 16 is installed, the flexible container bag body 10 is placed on the ground, so that the bottom of the moisture-proof mat 16 contacts the ground. Then, the filling equipment is used to fill it with material. The material enters the flexible container bag body 10 through the opening 13. The first reinforcing horizontal straps 201 are respectively set on the upper and lower sides of the outer wall of the flexible container bag body 10. A second reinforcing horizontal strap 202 is added to enhance the lateral load-bearing capacity of the flexible container bag body 10. At the same time, a cross-shaped reinforcing vertical strap 203 is set on the lower end face and sewn to the corner of the outer wall of the flexible container bag body 10, further improving the longitudinal strength and stability of the flexible container bag body 10. After the material is loaded, the opening 13 is tied tightly with the binding rope 14 to close the opening 13. Then, the flexible container bag body 10 is smoothly transported by the lifting strap 15 using a forklift or lifting equipment and placed in the designated position. The polyurethane moisture-proof mat 16 not only has excellent waterproof and moisture-proof performance, but is also wear-resistant, aging-resistant, and has a long service life. It can effectively isolate ground moisture and protect the flexible container bag body 10 and its contents from moisture corrosion.

[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A flexible freight bag comprising a flexible freight bag body (10), characterized in that: The flexible container bag body (10) comprises a base layer (11) and a wear-resistant layer (12) from inside to outside, an opening (13) is formed upwardly in the flexible container bag body (10), a binding rope (14) is arranged at the opening (13), a sling (15) is sewn and connected to the outer wall of the opposite two sides of the top of the flexible container bag body (10), a reinforcing assembly (2) for strengthening the supportability of the flexible container bag body (10) is arranged on the flexible container bag body (10), a moisture-proof pad (16) is arranged below the flexible container bag body (10), the moisture-proof pad (16) is adapted to the shape of the flexible container bag body (10), a connecting assembly (3) is arranged on the reinforcing assembly (2) and the moisture-proof pad (16), and the moisture-proof pad (16) is detachably connected with the reinforcing assembly (2) through the connecting assembly (3).

2. A flexible freight bag according to claim 1, characterized in that: The reinforcing assembly (2) comprises two first reinforcing horizontal bands (201) which are transversely sewn and connected to the outer side wall of the flexible container bag body (10), and the two first reinforcing horizontal bands (201) are arranged on the upper and lower sides of the flexible container bag body (10), respectively, and a second reinforcing horizontal band (202) is arranged between the two first reinforcing horizontal bands (201) and is sewn and connected to the outer side of the flexible container bag body (10).

3. A flexible freight bag according to claim 2, characterized in that: The reinforcing assembly (2) comprises two reinforcing vertical bands (203) which are sewn and connected to the lower end surface of the flexible container bag body (10), and the two reinforcing vertical bands (203) are arranged in a cross shape, and the two ends of the two reinforcing vertical bands (203) are respectively sewn and connected to the corresponding corners of the outer side wall of the flexible container bag body (10).

4. A flexible freight bag according to claim 3, characterized in that: The connecting assembly (3) comprises a first connecting band (301) which is sewn and connected to each of the four corners of the top end of the moisture-proof pad (16), a sub-insert buckle (302) is arranged on each of the four first connecting bands (301), a second connecting band (303) is sewn and connected to the position corresponding to each of the four first connecting bands (301) at each of the four corners of the second reinforcing horizontal band (202), a female insert buckle (304) is arranged on each of the four second connecting bands (303), and the same group of sub-insert buckles (302) and female insert buckles (304) are used in cooperation.

5. The flexible shipping bag of claim 1, wherein: The base layer (11) is woven by polypropylene.

6. The flexible shipping bag of claim 1, wherein: The wear-resistant layer (12) is woven by nylon.

7. The flexible shipping bag of claim 1, wherein: The moisture-proof pad (16) is made of polyurethane.