Woven type bulk bag

By setting a reinforcing rib network around the components and lifting components on the container bag, combined with the support module and ventilation windows, the problem of container bags easily bulging and breaking during hoisting and stacking is solved, improving structural stability and tear resistance, extending service life and preventing mold growth on the goods.

CN224929582UActive Publication Date: 2026-11-03HENAN CHANGXING IND CO LTD
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Patent Information

Application Number
CN202522689376.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-11-03
Estimated Expiration
2035-12-18

AI Technical Summary

Technical Problem

Existing container bags are prone to bulging and rupture on the sides during repeated lifting and stacking, and there is a risk of tearing at the connection between the lifting straps and the bag body, indicating insufficient resistance to bulging and bursting.

Method used

A reinforcing rib network is formed on both sides of the bag body by surrounding components and lifting components. Combined with support modules, edge banding sleeves and corner protectors, it improves structural stability and wear resistance. Ventilation windows are set on the bag body to improve ventilation.

Benefits of technology

It effectively inhibits lateral expansion of the bag, improves structural stability and rupture resistance, extends service life, and prevents mold growth on internal items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of woven type flexitank, belong to flexitank technical field, including bag body, the bottom of bag body is provided with supporting module, the supporting module is used to reinforce and support when hoisting bag body bottom, the outside of bag body is provided with several up and down distribution's surrounding assembly, the front and back of bag body are provided with pull assembly, the front and back of bag body are provided with air window, air window is used for the ventilation of bag body inside, the top of bag body is provided with inlet, the bottom of bag body is provided with discharge port, the corner of bag body is provided with arc angle, and the top of bag body is provided with edge covering in four corners;By the surrounding assembly and pull assembly being set in the both sides of bag body, a "reinforcing rib" network is formed in bag body side, effectively suppresses the lateral expansion of bag body when full load, improves overall structural stability and anti-explosion performance, especially suitable for stacking storage.
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Description

Technical Field

[0001] This utility model belongs to the field of container bag technology, specifically relating to a woven container bag. Background Technology

[0002] FIBCs, also known as bulk containers, are flexible transport packaging containers widely used for the storage and transportation of bulk materials such as chemicals, building materials, grains, and minerals.

[0003] According to the patent announcement number CN214453293U, a breathable container bag is known prior art. Although the patent has the advantage of being able to allow the contents of the container bag to breathe, the technical solution of the patent still has the following defects in actual use: during repeated lifting and stacking, the sides of the container bag, especially the middle part, are prone to bulging or even rupture due to the lateral pressure of the internal material. The overall resistance to bulging and bursting needs to be improved. There is stress concentration at the connection between the lifting straps and the bag body, which poses a risk of tearing when fully loaded. Utility Model Content

[0004] The purpose of this utility model is to provide a woven container bag to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a woven container bag, comprising a bag body, a supporting module at the bottom of the bag body, several vertically distributed surrounding components on the outside of the bag body, lifting components on both the front and back of the bag body, ventilation windows on both the front and back of the bag body, a feed inlet at the top of the bag body, and a discharge outlet at the bottom of the bag body.

[0006] In a preferred embodiment, the corners of the bag are rounded, and the top four corners of the bag are fitted with binding sleeves.

[0007] In a preferred embodiment, the bag body is made of woven fabric.

[0008] In a preferred embodiment, the support module includes corner protectors fixed at the four corners of the bottom of the bag, the corner protectors having an "L" shaped cross-section, and protective ribs fixedly disposed between adjacent corner protectors and fitted onto the bottom edge of the bag.

[0009] In a preferred embodiment, the surrounding component includes clamps fixed to the four side edges of the bag body, and a restraining ring is fixedly installed on the outer wall of the clamp, with a binding rope inserted inside the restraining ring to surround the outside of the bag body.

[0010] In a preferred embodiment, the lifting assembly includes a connecting strap fixed to the support module. The connecting strap has an upward arched structure. Slings are fixedly connected to both sides of the upper part of the connecting strap. Several anchor points fixed to the bag body are provided on the slings. A sling is installed at the top of the sling.

[0011] In a preferred embodiment, a reinforcing edge is snapped onto the edge of the ventilation window, and a ventilation mesh is fixedly installed in the internal space of the reinforcing edge. A Velcro fastener is provided on the outer side of the reinforcing edge, and a cover cloth covering the ventilation window is attached to the Velcro fastener.

[0012] In a preferred embodiment, a cover cloth is provided above the feed inlet, and several fixing blocks are provided on the upper part of both sides of the bag body. The cover cloth is provided with hanging ears that are connected to the fixing blocks on both sides.

[0013] In a preferred embodiment, a bushing is fixedly installed on the inner side of the discharge port, and hinge seats are provided on both sides of the top of the bushing. A sealing plate located inside the bag body is provided above the bushing through the hinge seats, and a cover cloth is provided below the discharge port.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This woven container bag, through the surrounding components and lifting components set on both sides of the bag body, forms a "reinforcing rib" network on the side of the bag body, which effectively suppresses the lateral expansion of the bag body when fully loaded, improves the overall structural stability and anti-burst performance, and is particularly suitable for stacking and storage. This woven container bag, with its support module, not only provides more stable lifting when the bag is fully loaded, but also enhances the bag's abrasion resistance with the addition of edge protectors and corner protectors, significantly reducing damage caused by wear and tear and increasing the bag's repeated service life. This woven container bag, with its ventilation windows, improves the bag's air permeability, effectively preventing mold growth on food and other items inside and thus ensuring product quality. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a schematic diagram of the back of the structure of this utility model; Figure 3 This is a front view of the structure of this utility model with the cover removed; Figure 4 This is a front view of the structure of this utility model with the bag removed. Figure 5 This is a schematic diagram of the discharge port of this utility model.

[0016] In the diagram: 1. Bag body; 11. Rounded corner; 12. Edge binding; 2. Support module; 21. Corner protector; 22. Edge protector; 3. Surrounding component; 31. Clamp; 32. Restraint ring; 33. Tie rope; 4. Lifting component; 41. Connecting strap; 42. Anchor point; 43. Lifting strap; 44. Lifting sling; 5. Ventilation window; 51. Reinforced edge protection; 52. Ventilation mesh; 53. Velcro; 54. Cover fabric II; 6. Feed inlet; 61. Cover fabric I; 62. Hanging ear; 63. Fixing block; 7. Discharge port; 71. Liner ring; 72. Hinge seat; 73. Sealing plate; 74. Cover fabric III. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments.

[0018] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0019] Please see Figure 3 and Figure 4 This utility model provides a woven container bag, including a bag body 1, with rounded corners 11 at the corners of the bag body 1, and edge banding 12 at each of the four top corners of the bag body 1. The bag body 1 is made of woven fabric.

[0020] In this embodiment, a reinforcing liner is provided on the inner side of the arc corner 11, and the edge banding sleeve 12 can be made of wear-resistant polyamide (nylon) or coated Oxford cloth, which ensures the overall stability of the bag body 1. At the same time, the edge banding sleeve 12 is used to protect the bag body 1 during filling, so as to avoid the material from having a large friction with the bag body 1.

[0021] Please see Figure 3 and Figure 4 The base of the bag body 1 is provided with a support module 2. The support module 2 is used to reinforce the bottom of the bag body 1 and support it during lifting. The support module 2 includes corner guards 21 fixed at the four corners of the bottom of the bag body 1. The cross-section of the corner guards 21 is "L" shaped, and the width of its two sides is 5-15 cm. A protective rib 22 with a clip is fixed between adjacent corner guards 21 and attached to the bottom edge of the bag body 1.

[0022] In this embodiment, the corner protectors 21 and the edge protectors 22 can be made of wear-resistant polyamide (nylon) or coated nylon Oxford cloth, thereby improving the wear resistance of the bottom of the container bag. The "L"-shaped structure can completely cover the edge and part of the sides, providing more comprehensive protection.

[0023] Please see Figure 1 , Figure 2 and Figure 4 The bag body 1 has several vertically distributed surrounding components 3 on its exterior. The surrounding components 3 include clamps 31 fixed at the four side edges of the bag body 1. The clamps 31 can be directly sewn at the side edges of the bag body 1. A binding ring 32 is fixedly installed on the outer wall of the clamp 31. A binding rope 33 is inserted inside the binding ring 32 and surrounds the outside of the bag body 1. The binding rope 33 is inserted inside the binding ring 32 and the end of the binding rope 33 is tied to achieve the tight binding of the side of the container bag.

[0024] In this embodiment, the binding rope 33 can also be a strip structure, with a spacing of about five centimeters between the upper and lower surrounding components 3. This can effectively constrain the lateral expansion of the bag body 1 and disperse stress without significantly increasing cost and weight.

[0025] Please see Figure 1 , Figure 2 and Figure 4 The front and back of the bag body 1 are provided with lifting components 4. The lifting components 4 include connecting straps 41 fixed to the supporting module 2. The connecting straps 41 are upward arched structures. The upper sides of the connecting straps 41 are fixedly connected with slings 43. The slings 43 are provided with several anchor points 42 fixed to the bag body 1. The top of the slings 43 is equipped with slings 44, and the bottom of the slings 44 is sewn to the corner protectors 21.

[0026] In this embodiment, since the connecting strap 41 is connected to the corner guard 21 of the support module 2, when the sling 44 is lifted by the crane, the support module 2 can support most of the weight of the container bag, and the weight is evenly distributed on the surface of the container bag through the sling 43 and the anchor point 42, so as to avoid the container bag from tearing.

[0027] Please see Figure 1 , Figure 2 and Figure 3 Both the front and back of the bag body 1 are provided with ventilation windows 5, which are used for ventilation inside the bag body 1. The edges of the ventilation windows 5 are snapped with reinforcing guards 51, and a ventilation net 52 is fixedly installed in the internal space of the reinforcing guards 51. The reinforcing guards 51 improve the connection between the ventilation net 52 and the bag body 1, and prevent the ventilation net 52 from cracking with the bag body 1. The outer side of the reinforcing guards 51 is provided with Velcro 53, and a cover cloth 54 covering the ventilation windows 5 is glued to the Velcro 53.

[0028] In this embodiment, when it is necessary to ventilate the product inside the container bag, the operator first uncovers the cover cloth 54. The design of the Velcro 53 makes the operation more convenient, thereby exposing the breathable mesh 52 and realizing the air exchange between the inside and outside of the container bag.

[0029] Please see Figure 1 and Figure 3The bag body 1 has an inlet 6 at the top and a cover 61 at the top. Several fixing blocks 63 are provided on the upper part of both sides of the bag body 1. The fixing blocks 63 can be designed with rotatable Velcro or locking buckle. The cover 61 has hanging ears 62 on both sides that are connected to the fixing blocks 63.

[0030] In this embodiment, after the product is loaded into the container bag through the feed port 6, the operator lays the cover cloth 61 on top of the bag body 1 and uses the hanging ears 62 on both sides to connect with the fixing block 63 to fix the cover cloth 61 on top of the bag body 1.

[0031] Please see Figure 2 and Figure 5 The bottom of the bag body 1 is provided with a discharge port 7. A bushing 71 is fixedly installed on the inner side of the discharge port 7. The bushing 71 is made of metal, which effectively ensures the stability of the edge of the discharge port 7. Both sides of the top of the bushing 71 are provided with hinge seats 72. A sealing plate 73 located inside the bag body 1 is provided above the bushing 71 through the hinge seats 72. The sealing plate 73 can rotate on the hinge seats 72 to close or open the discharge port 7. A cover cloth 74 is provided below the discharge port 7. After the discharge port 7 is closed, the bottom of it is covered by the cover cloth 74. One side of the cover cloth 74 is an integral woven structure with the bag body 1.

[0032] In this embodiment, the sealing plate 73 and hinge seat 72 inside the discharge port 7 designed in this application are only one method. Alternatively, the tube extending downward from the bag body 1 can be sealed directly by binding, which is also a commonly used sealing method for the discharge port 7.

[0033] The working principle and usage process of this utility model are as follows: By placing the product inside the bag body 1, the product can keep the discharge port 7 in a closed state under the action of gravity. Then, the rope ends of each layer of binding rope 33 are pulled and knotted to fix them, which can bind the outside of the container bag and prevent the product from being squeezed outwards, causing the container bag to tear. The operator can use a crane or other equipment to connect the hook to the lifting cable 44 of the lifting assembly 4. By lifting the crane, the entire container bag can be lifted. At this time, the lifting cable 44 will drive the lifting strap 43 to bear the force at the same time. At the same time, the force points of the container bag are distributed through multiple anchor points 42. The connection between the connecting strap 41 and the support module 2 ensures that the bottom of the container bag will not be torn. When the discharge port 7 is closed by using the sealing plate 73 and the hinge seat 72 (for container bags containing granular or powdery materials), a pointed guide rod is set at the bottom of the container bag during unloading. When the container bag falls, the pointed guide rod pushes the sealing plate 73 upward to open the discharge port 7. The overall design of the FIBC systematically improves its mechanical strength, abrasion resistance, and durability, making it especially suitable for applications requiring multiple reuses and harsh transportation environments.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A woven container bag, comprising a bag body (1), characterized in that: The bottom of the bag body (1) is provided with a support module (2), the outside of the bag body (1) is provided with several vertically distributed surrounding components (3), the front and back of the bag body (1) are provided with lifting components (4), the front and back of the bag body (1) are provided with ventilation windows (5), the top of the bag body (1) is provided with a feed inlet (6), and the bottom of the bag body (1) is provided with a discharge port (7).

2. The woven container bag according to claim 1, characterized in that: The corners of the bag body (1) are provided with rounded corners (11), and the top four corners of the bag body (1) are all provided with binding sleeves (12).

3. A woven container bag according to claim 1, characterized in that: The bag body (1) is made of woven fabric.

4. A woven container bag according to claim 1, characterized in that: The supporting module (2) includes corner protectors (21) fixed at the four corners of the bottom of the bag body (1). The cross-section of the corner protector (21) is "L" shaped, and a protective rib (22) with a clip on the bottom edge of the bag body (1) is fixed between adjacent corner protectors (21).

5. A woven container bag according to claim 1, characterized in that: The surrounding component (3) includes clamps (31) fixed at the four side edges of the bag body (1), and a restraining ring (32) is fixedly installed on the outer wall of the clamps (31). A binding rope (33) that surrounds the outside of the bag body (1) is inserted inside the restraining ring (32).

6. A woven container bag according to claim 1, characterized in that: The lifting assembly (4) includes a connecting strap (41) fixed to the support module (2). The connecting strap (41) is an upward arched structure. Slings (43) are fixedly connected to both sides of the upper part of the connecting strap (41). Several anchor points (42) fixed to the bag body (1) are provided on the slings (43). A sling (44) is installed at the top of the slings (43).

7. A woven container bag according to claim 1, characterized in that: A reinforcing edge (51) is snapped onto the edge of the ventilation window (5). A ventilation mesh (52) is fixedly installed in the internal space of the reinforcing edge (51). A Velcro (53) is provided on the outside of the reinforcing edge (51). A cover cloth (54) covering the ventilation window (5) is attached to the Velcro (53).

8. A woven container bag according to claim 1, characterized in that: A cover cloth (61) is provided above the feed inlet (6), and several fixing blocks (63) are provided on the upper sides of both sides of the bag body (1). The cover cloth (61) is provided with hanging ears (62) connected to the fixing blocks (63) on both sides.

9. A woven container bag according to claim 1, characterized in that: A bushing (71) is fixedly installed on the inner side of the discharge port (7). A hinge seat (72) is provided on both sides of the top of the bushing (71). A sealing plate (73) located inside the bag body (1) is provided above the bushing (71) through the hinge seat (72). A cover cloth (74) is provided below the discharge port (7).