Container liner bag components, container components, and railway transportation systems

By designing a container liner bag assembly with reinforced cloth and reinforcement belt, the problem of bag expansion during unloading of the container liner bag is solved, and a tarpaulin function is provided to achieve improved structural strength and protective effect, which is suitable for railway transportation systems.

CN120246469BActive Publication Date: 2025-09-23ZHONGHUAI CONTAINER EQUIP TECH (TIANJIN) CO LTD
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Patent Information

Application Number
CN202510741066.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2025-09-23
Estimated Expiration
2045-06-05

AI Technical Summary

Technical Problem

Liner bags in containers are prone to bulging and rupturing during unloading, especially in open-top containers where it is difficult to prevent rain and snow from invading. Existing blocking devices are difficult to install and easy to lose.

Method used

A container liner bag assembly was designed, which includes reinforcing cloth and reinforcing belts to form a three-dimensional support frame. The top belt is suspended and positioned, and the diagonal belt prevents deformation. It is fixed by hooks and traction parts, combined with the tarpaulin function to improve the structural strength and protective effect.

Benefits of technology

It effectively prevents container liner bags from breaking during unloading and prevents rain and snow from entering. The structure is detachable for easy replacement and is suitable for railway transportation systems.

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Abstract

The present invention discloses a container liner bag assembly, a container assembly, and a railway transportation system. The container liner bag assembly includes a bag body, a reinforcing cloth, and a reinforcing belt; the top surface of the bag body includes a bent portion that can extend to the outside of the left and right sides of the open-top container, and the reinforcing belt also includes a plurality of top belts arranged above the bag body, and the ends of the top belts are provided with traction members for connecting to the outer wall of the container, and the top belts are fixed to the top surface. The container assembly includes an open-top container and the container liner bag assembly as described above. The railway transportation system includes a freight train and the container assembly as described above. By adopting the above-mentioned technical solution, the top surface of the bag body forms bent portions on the left and right sides of the open-top container, which can act as a tarpaulin and effectively prevent rain and snow from entering the container during railway transportation.
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Description

Technical Field

[0001] The present invention relates to a container liner bag assembly, a container assembly and a railway transportation system, belonging to the technical field of railway transportation systems. Background Art

[0002] Container liners are large, flexible packaging containers used to protect bulk cargo from contamination, moisture, and damage during transport. They are typically placed inside standard shipping containers and are typically made of plastics such as polyethylene (PE) and polypropylene (PP). Container liners are typically designed with an opening at the top near the door, allowing for filling from the top of the container (gravity filling or mechanical filling) or horizontally (conveyor belt or horizontal pneumatic filling). A discharge port (such as a valve or cutout) is also provided at the bottom to facilitate quick unloading. When used to transport powders, the bag is supported by the container's sidewalls and doors. However, unloading requires opening the door. Without the support of the door, the bag can easily swell, even rupturing, causing the powder to spill outwards, potentially causing injury. The existing solution involves placing five to six square tubes horizontally across the container door to block the bag. However, these tubes are difficult to install, inconvenient to carry when the container is empty, and easily lost. In addition, when liner bags are used in open-top containers, in order to prevent rain and snow from entering the container, an additional tarpaulin is required to cover the top of the open-top container. Summary of the Invention

[0003] Therefore, an object of the present invention is to provide a container liner bag assembly that integrates a tarpaulin function and has high structural strength, as well as to provide a container assembly and a railway transportation system having the container liner bag assembly.

[0004] In order to achieve the above-mentioned purpose, a container liner bag assembly of the present invention includes a bag body, a reinforcing cloth and a reinforcing belt; the reinforcing cloth includes a front cloth piece, a rear cloth piece and a bottom cloth piece, a receiving space is formed between the front cloth piece and the rear cloth piece for receiving the bag body, and the bottom cloth piece is used to support the bag body; the reinforcing belt and the reinforcing cloth are a fixedly connected integral structure, the reinforcing belt includes a transverse ring body that transversely surrounds the bag body, and the transverse ring body is fixedly connected to the front cloth piece and the rear cloth piece; the transverse ring body includes a top transverse ring body connected to the top of the front cloth piece and the rear cloth piece and a middle transverse ring body located below the top transverse ring body; the reinforcing belt also includes a vertical belt, the vertical belt The belt is arranged on the left and right sides of the bag body and connects the top transverse ring body, the middle transverse ring body and the bottom cloth piece; a plurality of first hooks for connecting to the open-top container are arranged on the top transverse ring body; at least one closable unloading port is arranged on the front cloth piece; the bag body includes a bottom surface, a side surface and a top surface, and at least one closable loading port is arranged on the top surface; the top surface of the bag body includes a bending portion that can extend to the outside of the left and right sides of the open-top container, and the reinforcement belt also includes a plurality of top belts arranged above the bag body, and the ends of the top belts are provided with traction parts for connecting to the outer wall of the container, and the top belts are fixed to the top surface.

[0005] The side surface includes a flange portion that can be turned outward to the left and right sides of the container, and the flange portion is connected to the bent portion.

[0006] A plurality of connecting belts are also provided on the top transverse ring body, and the connecting belts extend upward and are fixed to the flange portion.

[0007] The connecting belt and the top belt clamp the flange portion and the bent portion therebetween, and the ends of the connecting belt and the top belt are fixedly connected by the traction member.

[0008] The side surface and the top surface are split structures that are sealed and bonded to each other.

[0009] The top belts located at the front and rear ends of the top surface respectively have eaves, which can be bent downward; each eaves is provided with multiple through-holes for the traction rings on the side walls of the container drainage trough to pass through, and a rope passes through the multiple traction rings to prevent the traction rings from falling out of the through-holes.

[0010] At least one diagonal strap is further provided on the front fabric sheet, and an end portion of the diagonal strap forms an extension section toward the outside of the front fabric sheet, and an end portion of the extension section is provided with a second hook for connecting to a container.

[0011] The left and right sides of the front cloth piece are respectively connected with a left bending portion and a right bending portion.

[0012] The present invention also provides a container assembly, comprising an open top container and the container liner bag assembly as described above.

[0013] The present invention also provides a railway transportation system, comprising a freight train and the container assembly as described above, wherein the freight train comprises a plurality of freight flatbed trucks, and the container assembly is arranged on the freight flatbed trucks.

[0014] By adopting the above technical solution, the container liner bag assembly, container assembly and railway transportation system of the present invention have the following beneficial effects compared with the prior art:

[0015] 1. The top surface of the bag forms a bend on the left and right sides of the open-top container, which can act as a tarpaulin, effectively preventing rain and snow from entering the container during railway transportation. At the same time, a top strap is set on the top of the bag. The top strap is fixed to the top surface of the bag and can lift the bag. When the traction piece on the top strap is connected to the rope loop on the outer wall of the container, the top surface of the bag can be positioned under the tension of the top strap, thereby suspending the bag to facilitate filling the bag with powder.

[0016] 2. A three-dimensional support frame is formed by the front and rear cloth pieces and the transverse ring reinforcement belts, combined with the three-dimensional constraint system of the top transverse ring, the middle transverse ring and the vertical belt, which significantly improves the anti-expansion ability of the bag. During unloading, after the container door is opened, the above-mentioned constraint system effectively disperses the lateral pressure of the powder on the bag wall during unloading, reducing the risk of the bag bulging and rupturing. During unloading, the material will have friction on the bag body, and there is a tendency to drag the entire liner bag out of the container. Therefore, the reinforcement belt is connected and reinforced with the rope loop in the container to prevent the entire inner bag from being dragged out of the container during unloading. In addition, when the train is running at high speed, the wind will tear and damage the top of the bag. The reinforcement belt is arranged in a criss-cross pattern to fix the bag body in a grid, effectively preventing the wind from tearing and damaging the top of the bag body.

[0017] 3. The oblique pull belt and the second hook of the extension section form an oblique tension structure to prevent the front cloth piece from convexly deforming when the discharge port is opened, thereby maintaining the stability of the bag shape.

[0018] 4. The reinforcing belt and the bag body are fixed in a detachable manner, such as gluing, so that the bag body can be replaced after being damaged, and the reinforcing belt and reinforcing cloth can be reused.

[0019] 5. The left and right bent parts are set on the front fabric to enhance the lateral wrapping. After the bag is filled with powder, the left and right bent parts will be squeezed and pressed tightly against the inner wall of the container, thereby improving the anti-expansion ability of the front fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the container assembly in the present invention.

[0021] Figure 2 Schematic diagram of the structure of the container liner bag assembly.

[0022] Figure 3 for Figure 1 A partial enlarged view of part A.

[0023] Figure 4 Schematic diagram of the exploded view of the container liner bag assembly.

[0024] Figure 5 This is a side view of the container liner bag assembly in an exploded state.

[0025] Figure 6 for Figure 5 A partial enlarged view of part B in FIG.

[0026] Figure 7 for Figure 6 A partial enlarged view of part C in FIG.

[0027] Figure 8 for Figure 6 A partial enlarged view of part D in FIG.

[0028] Figure 9 for Figure 4 A partial enlarged view of part E in FIG.

[0029] Figure 10 for Figure 9 A partial enlarged view of part F in FIG.

[0030] Figure 11 for Figure 9 A partial enlarged view of part G in FIG.

[0031] Figure 12 Schematic diagram of the decomposition of the reinforcement cloth and reinforcement belt.

[0032] Figure 13 This is a structural diagram of the bag body and the reinforcement belt being fixed by gluing.

[0033] Figure 14 This is a structural diagram of the bag body and the reinforcement belt being fixed by adhesive tape.

[0034] Figure 15 It is a structural schematic diagram of another embodiment of the bag body.

[0035] Figure 16 for Figure 15 A partial enlarged view of part H in FIG. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1-Figure 4As shown, the present invention provides a container assembly, including an open top container 1 and a container liner bag assembly 2.

[0038] The container liner bag assembly 2 includes a bag body 21, a reinforcement cloth and a reinforcement belt. The reinforcement cloth includes a front cloth piece 221, a rear cloth piece 222 and a bottom cloth piece 223. Figure 12 As shown, a receiving space is formed between the front fabric piece 221 and the back fabric piece 222 for receiving the bag body 21, and the bottom fabric piece 223 is used to support the bag body 21. The left and right sides of the front fabric piece 221 are respectively connected to a left bent portion 224 and a right bent portion 225.

[0039] The reinforcing band and the reinforcing cloth are fixedly connected as an integrated structure. The reinforcing band includes a transverse ring that transversely surrounds the bag body 21. The transverse ring includes a top transverse ring 231 connected to the tops of the front and rear fabric panels 221 and 222, and at least one mid-level transverse ring 232 located below the top transverse ring 231. The reinforcing band also includes vertical bands 241, which are disposed on the left and right sides of the bag body 21 and connect the top transverse ring 231, the mid-level transverse ring 232, and the bottom fabric panel 223. The top transverse ring 231 is also provided with a plurality of first hooks 251 for connecting to the inner sidewall of the open-top container 1. The mid-level transverse ring 232, located below, is provided with a plurality of third hooks 253 for connecting to the inner sidewall of the open-top container 1.

[0040] The front fabric panel 221 is further provided with a plurality of diagonal straps 26 , the ends of the diagonal straps 26 forming extension sections 261 outward from the front fabric panel 221 , and the ends of the extension sections 261 are provided with second hooks 252 for connecting to a container.

[0041] A closable discharge port 27 is provided at the lower portion of the front fabric panel 221. The discharge port 27 can be closed with a zipper, Velcro, or drawstring pocket closure. In this embodiment, there are multiple discharge ports 27, and each of the discharge ports 27 is closed with a drawstring pocket closure. At least one closable loading port 210 is provided at the top of the bag body 21. A closure 213 can also be provided on the bag body 21, opposite the discharge port 27. Discharging does not require cutting the bag body 21; the bag can be discharged by untying the closure 213, allowing the bag body 21 to be reused without damaging other parts.

[0042] The bag body 21 and the reinforcement belt 20 are detachably fixed to each other, for example, by gluing. Figure 13 As shown, the adhesive layer 201 is applied to the reinforcing tape 20 and adhered to the bag body 21; or fixed by adhesive tape, such as Figure 14As shown, after the reinforcing tape 20 is covered with an adhesive tape 202 having a width greater than that of the reinforcing tape 20 , the portion of the adhesive tape 202 that exceeds the width of the reinforcing tape 20 is adhered to the bag body 21 .

[0043] The bag body 21 includes a top surface 211, side surfaces 212 and a bottom surface 213. In this embodiment, Figure 5-Figure 11 As shown, the upper portion of the bag body 21 is extended upwardly out of the open-top container 1, and the side surfaces 212 are turned out to the left and right sides of the open-top container 1, so that the left and right sides of the top surface 211 extend to the outside of the left and right sides of the open-top container and bend downward, and the downwardly bent portion of the top surface 211 is the bending portion 211a, and the outward turned portion of the side surface 212 is the flange portion 212a, and the flange portion 212a is connected to the bending portion 211a.

[0044] The reinforcing belt includes a plurality of top belts 242 arranged above the bag body 21. The ends of the top belts 242 are provided with traction members 282 for connecting to the outer wall of the container. The traction members can be ropes. The top belts 242 are detachably fixed to the top surface of the bag body 21, for example Figure 13 、 Figure 14 The two top strips 242 at the front and rear ends of the top surface 211 of the bag body 21 are provided with downwardly bent eaves 242a, and the eaves 242a are provided with multiple through-holes 242b for the multiple traction rings 108 on the side walls of the container drainage trough to pass through. The multiple traction rings 108 are penetrated by ropes 242c, which can prevent the traction rings 108 from falling out of the through-holes 242b and thus fix the eaves 242a. Figure 3 A plurality of lifting members 242d are further provided on the top belt 242. The lifting members 242d can be cloth strips sewn on the top belt 242 and can be used as a holding force for the robot during the automatic disassembly and assembly of the liner bag.

[0045] A plurality of connecting straps 231a are also provided on the top transverse ring body 231. The connecting straps 231a extend upward and are detachably secured to the flange portion 212a. A gap 200 is formed between the connecting straps 231a and the top strap 242, thereby clamping the flange portion 212a and the bent portion 211a therebetween. The ends of the connecting straps 231a and the top strap 242 are securely connected by the traction member 282.

[0046] The side, top and bottom surfaces of the above structure are integrally formed bag structures. Of course, in other embodiments, such as Figure 15 、 Figure 16 As shown, the side surface 212 and the top surface 211 may also be a split structure, and the side surface 212 and the top surface 211 are fixed by sealing and bonding.

[0047] The present invention also provides a railway transportation system, comprising a freight train and the container assembly as described above, wherein the freight train comprises a plurality of freight flatbed trucks, and the container assembly is fixed on the freight flatbed trucks.

[0048] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A container liner bag assembly, characterized by: The bag comprises a bag body, a reinforcing cloth and a reinforcing belt; the reinforcing cloth comprises a front cloth piece, a rear cloth piece and a bottom cloth piece, a storage space is formed between the front cloth piece and the rear cloth piece for accommodating the bag body, and the bottom cloth piece is used to support the bag body; the reinforcing belt and the reinforcing cloth are an integrated structure fixedly connected, the reinforcing belt comprises a transverse ring body that transversely surrounds the bag body, and the transverse ring body is fixedly connected to the front cloth piece and the rear cloth piece; the transverse ring body comprises a top transverse ring body connected to the top of the front cloth piece and the rear cloth piece and a middle transverse ring body located below the top transverse ring body; the reinforcing belt also comprises vertical belts, which are arranged on the left and right sides of the bag body and The top transverse ring body, the middle transverse ring body and the bottom fabric piece are connected; a plurality of first hooks for connecting the open-top container are provided on the top transverse ring body; at least one closable unloading port is provided on the front fabric piece; the bag body includes a bottom surface, a side surface and a top surface, and at least one closable loading port is provided on the top surface; the top surface of the bag body includes a bending portion that can extend to the outside of the left and right sides of the open-top container, and the reinforcement belt also includes a plurality of top straps arranged above the bag body, and the ends of the top straps are provided with traction parts for connecting to the outer wall of the container, and the top straps are fixed to the top surface; the top straps located at the front and rear ends of the top surface respectively have eaves, and the eaves can be bent downward; each eaves is provided with a plurality of through-holes for the traction rings on the side walls of the container drainage trough to pass through, and a rope passes through the plurality of traction rings to prevent the traction rings from falling out of the through-holes.

2. The container liner bag assembly according to claim 1, wherein: The side surface includes a flange portion that can be turned outward to the left and right sides of the container, and the flange portion is connected to the bent portion.

3. The container liner bag assembly according to claim 2, wherein: A plurality of connecting belts are also provided on the top transverse ring body, and the connecting belts extend upward and are fixed to the flange portion.

4. The container liner bag assembly according to claim 3, wherein: The connecting belt and the top belt clamp the flange portion and the bent portion therebetween, and the ends of the connecting belt and the top belt are fixedly connected by the traction member.

5. The container liner bag assembly according to claim 1, characterized in that: The side surface and the top surface are split structures that are sealed and bonded to each other.

6. The container liner bag assembly according to any one of claims 1 to 5, characterized in that: At least one diagonal strap is further provided on the front fabric sheet, and an end portion of the diagonal strap forms an extension section toward the outside of the front fabric sheet, and an end portion of the extension section is provided with a second hook for connecting to a container.

7. The container liner bag assembly according to any one of claims 1 to 5, wherein: The left and right sides of the front cloth piece are respectively connected with a left bending portion and a right bending portion.

8. A container assembly, characterized in that: The invention comprises an open top container and a container liner bag assembly according to any one of claims 1 to 7.

9. A railway transportation system, characterized in that: The invention comprises a freight train and the container assembly according to claim 8, wherein the freight train comprises a plurality of freight flatbed trucks, and the container assembly is arranged on the freight flatbed trucks.

Citation Information

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