A flexible medium-sized bulk container

Abstract

This utility model discloses a flexible medium-sized bulk container, relating to the field of bulk container technology. It aims to solve the problems of existing flexible packaging containers, such as simple structure, susceptibility to damage, inability to fold, insufficient puncture resistance and moisture protection, easy expansion and deformation under load, and insufficient overall structural strength, filling stability, and practicality. The key technical solution includes a polypropylene shell, with packaging straps wrapped around its exterior. These straps consist of lifting sections and supporting sections. Four lifting sections are located at the four corners of the polypropylene shell. A cardboard layer is placed inside the polypropylene shell, and an outer cover is fastened to the ends of the shell. Non-woven fabric is placed on the inner bottom of the cardboard layer. This achieves multi-layered filling protection, high structural strength, good sealing, high stability during transport and lifting, and strong overall practicality.

Description

Technical Field

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

[0002] Flexible medium-sized bulk containers are an innovative solution in the field of modern logistics packaging, specifically designed for the transportation and storage of bulk materials. They have demonstrated outstanding performance in the packaging of catalysts for oil refining. These containers offer several significant advantages: lightweight design and foldable body, significantly reducing transportation energy consumption; high-strength, abrasion-resistant fabric with excellent tear resistance, capable of withstanding friction and impact during catalyst transportation; flexible structural design that reduces volume when folded, resulting in low storage and empty container return transportation costs; and a sealed design that effectively isolates the container from the influence of air on the performance of the contents.

[0003] Existing flexible packaging containers suffer from a simple structure, are easily damaged, cannot be folded, lack puncture resistance and moisture protection, and are prone to expansion and deformation when carrying loads. The overall structural robustness and filling stability need to be improved, and their practicality also needs to be enhanced. Utility Model Content

[0004] The purpose of this utility model is to provide a flexible medium-sized bulk container that can provide multi-layered filling and protection, has high structural strength, good sealing performance, high stability during transportation and hoisting, and strong overall practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A flexible medium-sized bulk container includes a polypropylene shell, the exterior of which is wrapped with packaging straps, the packaging straps being composed of lifting sections and supporting sections. Four lifting sections are provided, distributed at the four corners of the polypropylene shell. A cardboard is placed inside the polypropylene shell. An outer cover is fastened to the port of the polypropylene shell. Non-woven fabric is placed on the inner bottom of the cardboard. A double-layer PE inner liner is placed inside the non-woven fabric. A feed inlet is provided at the top of the polypropylene shell. A screw-on plastic cap is installed at the filling port of the double-layer PE inner liner.

[0007] By adopting the above technical solution, multi-layered protection can be achieved, resulting in high overall structural strength, good sealing, and strong stability during loading and unloading.

[0008] Furthermore, two first connecting straps are sewn onto the four outer surfaces of the outer cover, and a connecting ring is installed at one end of each first connecting strap.

[0009] By adopting the above technical solution, a connection structure is provided for the limiting connection of the outer cover.

[0010] Furthermore, the lifting section on the packaging strap is sewn with a third connecting strap, one end of which passes through the interior of the connecting ring and is sewn to the polypropylene shell.

[0011] By adopting the above technical solution, the outer cover can be effectively connected and fixed.

[0012] Furthermore, two second connecting straps are provided between two adjacent lifting sections, and the two ends of the second connecting straps are sewn to the lifting section of the packaging strap respectively.

[0013] By adopting the above technical solution, the positional stability of the four hoisting sections can be effectively improved.

[0014] Furthermore, the exterior of the polypropylene shell is sewn with two binding straps.

[0015] By adopting the above technical solutions, the stability of the container can be effectively improved.

[0016] Furthermore, two woven straps are sewn at the port of the feed inlet.

[0017] By adopting the above technical solution, it is easy to tie the opening of the double-layer PE inner lining bag.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] 1. This utility model allows the material to be contained to be placed inside a double-layer PE inner bag, and then the feed inlet is secured with woven straps. Because cardboard is inserted inside the polypropylene shell, the structural strength of the entire bulk container is effectively improved, thereby improving the stability during hoisting and transportation. Because packaging straps are wrapped around the outside of the polypropylene shell, the packaging straps include hoisting sections and supporting sections. The four hoisting sections are distributed at the four corners of the polypropylene shell, so the entire container can be hoisted conveniently using the four hoisting sections. During the hoisting process, the supporting sections can be used to effectively support the bottom of the polypropylene shell, resulting in strong hoisting stability and high overall structural strength.

[0020] 2. This utility model improves the material holding stability of bulk containers by fastening an outer cover to the port of the polypropylene shell. The outer cover is connected to the port of the polypropylene shell by a first connecting strap, a connecting ring, and a third connecting strap. It is highly practical.

[0021] 3. This utility model can effectively improve the sealing performance of bulk containers by installing a screw-on plastic cap at the feed inlet of the double-layer PE inner liner bag. Attached Figure Description

[0022] Figure 1This is a first-view perspective view of the three-dimensional structure of this utility model;

[0023] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model.

[0024] In the diagram: 1. Packaging strap; 2. Polypropylene shell; 3. Lifting section; 4. Cardboard; 5. Non-woven fabric; 6. Double-layer PE inner liner bag; 7. Outer cover; 8. First connecting strap; 9. Connecting ring; 10. Second connecting strap; 11. Third connecting strap; 12. Restraint strap; 13. Support section; 14. Inlet; 15. Plastic cover. Detailed Implementation

[0025] The method of this utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 , Figure 2 A flexible medium-sized bulk container includes a polypropylene shell 2, with packaging straps 1 wrapped around its exterior. The packaging straps 1 consist of lifting sections 3 and supporting sections 13. Four lifting sections 3 are provided, distributed at the four corners of the polypropylene shell 2. A cardboard 4 is placed inside the polypropylene shell 2. An outer cover 7 is fastened to the port of the polypropylene shell 2. Non-woven fabric 5 is placed on the bottom inner side of the cardboard 4, and a double-layer PE inner liner bag 6 is placed inside the non-woven fabric 5. An inlet 14 is located at the top of the polypropylene shell 2. A screw-on plastic cap 15 is installed at the filling port of the double-layer PE inner liner bag 6. Two binding straps 12 are sewn onto the exterior of the polypropylene shell 2. Two woven straps are sewn onto the port of the inlet 14. Two second connecting straps 10 are provided between adjacent lifting sections 3, with both ends of the second connecting straps 10 sewn to the lifting sections 3 of the packaging straps 1. The material to be contained can be placed in the double-layer PE inner liner bag. Inside the container 6, after loading, the plastic cap 15 of the filling port of the double-layer PE inner bag 6 is screwed on, and then the inlet 14 is tied with woven straps. Because cardboard 4 is set on the outside of the non-woven fabric 5, and polypropylene shell 2 is sleeved on the outside of the cardboard 4, the structural strength of the entire bulk container can be effectively improved, thereby improving the stability during the lifting and transportation process. Because packaging strap 1 is wrapped around the outside of the polypropylene shell 2, the packaging strap 1 includes lifting section 3 and support section 13. The four lifting sections 3 are distributed at the four corners of the polypropylene shell 2. At this time, the four lifting sections 3 can be used to conveniently lift the entire container. During the lifting process, the support section 13 can be used to effectively support the bottom of the polypropylene shell 2. Because a screw-on plastic cap 15 is installed at the filling port of the double-layer PE inner bag 6, the load can be effectively sealed, and batch filling can be achieved. The lifting stability is strong, the sealing is good, and the overall structural strength is high.

[0027] Reference Figure 1Two first connecting straps 8 are sewn onto the four outer surfaces of the outer cover 7. A connecting ring 9 is installed at one end of the first connecting strap 8. A third connecting strap 11 is sewn onto the lifting section 3 of the packaging strap 1. One end of the third connecting strap 11 passes through the inside of the connecting ring 9 and is sewn onto the polypropylene shell 2. By fastening the outer cover 7 at the port of the polypropylene shell 2, and limiting the connection of the outer cover 7 to the port of the polypropylene shell 2 through the first connecting straps 8, connecting rings 9, and third connecting straps 11, the material holding stability of the bulk container can be effectively improved, making it highly practical.

[0028] Working principle: During use, the bulk catalyst to be transferred is placed inside the double-layer PE inner bag 6. After loading, the plastic cap 15 of the filling port of the double-layer PE inner bag 6 is screwed on. Then, the inlet 14 is secured with woven straps. Next, the outer cover 7 is fastened and installed at the port of the polypropylene shell 2. The outer cover 7 is connected to the port of the polypropylene shell 2 by the first connecting strap 8, the connecting ring 9, and the third connecting strap 11. Because cardboard 4 is placed outside the non-woven fabric 5, and the polypropylene shell 2 is fitted over the cardboard 4, the structural strength of the entire bulk container is effectively improved, thereby enhancing the lifting and transportation process. Stability is ensured by the packaging strap 1 wrapped around the outside of the polypropylene shell 2, which includes lifting sections 3 and supporting sections 13. The four lifting sections 3 are distributed at the four corners of the polypropylene shell 2, allowing for convenient lifting of the entire container. During lifting, the supporting sections 13 effectively support the bottom of the polypropylene shell 2. Since a screw-on plastic cap 15 is installed at the filling port of the double-layer PE inner bag 6, the contents can be effectively sealed, and batch filling can be achieved. The lifting stability is strong, the sealing performance is good, and the overall structural strength is high.

[0029] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A flexible medium-sized bulk container, comprising a polypropylene shell (2), characterized in that: The polypropylene shell (2) is wrapped with packaging straps (1), which consist of lifting sections (3) and supporting sections (13). There are four lifting sections (3), which are distributed at the four corners of the polypropylene shell (2). The interior of the polypropylene shell (2) is lined with cardboard (4). An outer cover (7) is fastened to the port of the polypropylene shell (2). The bottom inner side of the cardboard (4) is lined with non-woven fabric (5). The inner side of the non-woven fabric (5) is lined with a double-layer PE inner liner bag (6). The top of the polypropylene shell (2) is provided with a feed inlet (14). The filling port of the double-layer PE inner liner bag (6) is fitted with a screw-on plastic cap (15).

2. A flexible medium-sized bulk container according to claim 1, characterized in that: Two first connecting straps (8) are sewn on the four outer surfaces of the outer cover (7), and a connecting ring (9) is installed at one end of the first connecting strap (8).

3. A flexible medium-sized bulk container according to claim 2, characterized in that: The lifting section (3) on the packaging strap (1) is sewn with a third connecting strap (11), one end of which passes through the interior of the connecting ring (9) and is sewn to the polypropylene shell (2).

4. A flexible medium-sized bulk container according to claim 1, characterized in that: Two second connecting straps (10) are provided between two adjacent hoisting sections (3), and the two ends of the second connecting straps (10) are sewn to the hoisting section (3) of the packaging strap (1).

5. A flexible medium-sized bulk container according to claim 1, characterized in that: The polypropylene shell (2) is sewn with two binding straps (12) on the outside.

6. A flexible medium-sized bulk container according to claim 1, characterized in that: Two woven straps are sewn at the port of the feed inlet (14).

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