Transportation device

Abstract

The invention relates to the technical field of liquid transportation, in particular to a transportation device. The liquid bags are arranged in the transportation carrier, a flexible protection bag is arranged at the end of at least one liquid bag between the adjacent liquid bags, and the flexible protection bag can wrap the end of the corresponding liquid bag; the flexible protection bag comprises a plurality of tensioning connecting pieces, one ends of the tensioning connecting pieces are fixedly connected with the flexible protection bag, and the other ends of the tensioning connecting pieces are used for being fixedly connected with anchoring pieces on a transportation carrier. The device has the effects of reducing liquid bag damage and relieving the labor burden of workers.

Description

Technical Field

[0001] This application relates to the field of liquid transportation technology, and more particularly to a transportation device. Background Technology

[0002] Currently, in the field of bulk liquid transportation, flexible liquid bags are commonly used to carry and transport liquid cargo within standard containers. These flexible liquid bags are typically made of multi-layered polymer composite materials, featuring lightweight, large loading capacity, and relatively low cost. They have been used in the transportation of products such as wine, juice, edible oil, and non-hazardous liquid chemicals. The current mainstream solution usually involves placing a single large-capacity, single-chamber flexible liquid bag within a 20-foot container, with a volume generally ranging from 16 to 26 cubic meters, maximizing space utilization by fitting it flush against the container's inner walls.

[0003] In practical applications, while this type of single-cavity flexible liquid bag structure can increase the single-transport capacity to some extent, its overall structure is a one-piece sealed cavity, with its capacity strictly bound to the container specifications, lacking flexible adjustment capabilities. In some cases, the liquid bag cannot fill the container completely, resulting in the rear end of the liquid bag not contacting the container side wall. In such situations, due to the lack of limiting devices during transportation, the liquid bag is prone to shaking, posing a risk of transportation accidents. Furthermore, when multiple different liquids need to be transported simultaneously within a container, two liquid bags need to be placed inside. The lack of limiting devices on the liquid bags also increases the risk of collision between them.

[0004] To reduce the occurrence of the above situations, a baffle is usually installed inside the container during transportation to limit the movement of the liquid bags. The baffle is usually made of metal or wood and is fixed between two liquid bags to form a rigid barrier. While this structure can restrict the position of the liquid bags to some extent, because it is a rigid component, it can come into direct contact with the liquid bags or even experience localized hard compression when subjected to liquid impact loads. When sudden braking or violent shaking occurs during transportation, the liquid impact force is concentrated on the baffle surface, easily causing deformation, breakage, or localized damage. The edges of a damaged baffle are usually sharp, posing a risk of puncturing or scratching the liquid bags, thus causing liquid leakage.

[0005] In addition, existing baffle structures are usually large in size and heavy in weight, requiring manual handling and installation in actual use. The operation process is cumbersome, which not only increases the labor intensity of loading and unloading operations, but also reduces the overall operation efficiency. Summary of the Invention

[0006] In order to address the problems of high labor intensity in loading and unloading operations and high risk of baffle breakage and damage to liquid bags during liquid transportation in related technologies, this application provides a transportation device.

[0007] This application provides a transportation device, which adopts the following technical solution: A transport device includes a transport carrier and at least one liquid bag arranged within the transport carrier. The end of each liquid bag is provided with a flexible protective pocket, or at least one liquid bag between adjacent liquid bags is provided with a flexible protective pocket at its end. The flexible protective pocket is capable of wrapping the end of the corresponding liquid bag. The flexible protective pocket is provided with a plurality of tensioning connectors, one end of which is fixedly connected to the flexible protective pocket, and the other end is used to be fixedly connected to an anchor on the transport carrier.

[0008] The structure, featuring a flexible protective pouch and multiple tensioning connectors, replaces the traditional rigid baffle. This creates surface contact between the liquid bags instead of rigid point contact, allowing the material's flexible deformation to absorb some of the impact energy under liquid impact loads, preventing concentrated impact and localized damage. Compared to rigid baffles in related technologies, the flexible structure of the protective pouch in this application reduces the risk of the liquid bags being punctured or scratched. Furthermore, one end of each tensioning connector is fixedly connected to the flexible protective pouch, while the other end is connected to an external fixing point. This places the flexible protective pouch in a tensile state after installation, enabling it to quickly provide a reverse restraint force when the liquid bags tend to displace, converting the expansion tendency of the liquid bags into tension force in the tensioning connectors and transmitting it to the external structure, thus achieving force dispersion and transmission. In addition, this structure is lightweight, easy to store, and installation only requires connecting the tensioning connectors, reducing operational complexity and labor intensity. It solves the technical problems of existing baffles that easily damage liquid bags and are inconvenient to operate.

[0009] Optionally, the flexible protective pouch is a polygonal sheet structure.

[0010] The flexible protective cover has a rectangular sheet structure, which has a clear geometric regularity, making it easy to manufacture and deploy. In addition, the rectangular structure has a high degree of matching with the geometry of the internal space of the container or transport vehicle, which is beneficial for installation and space utilization.

[0011] Optionally, the flexible protective pouch includes an edge portion and a corner portion, with a tensioning connector provided at the corner portion of the flexible protective pouch.

[0012] The tensioning connectors are positioned at the corners of the flexible protective pouch, concentrating the tension force on the key stress points of the structure, namely the corner areas. This allows for outward tension through the four corner points, causing the entire flexible protective pouch to unfold and fit snugly against the end face of the liquid bag. As the intersection of geometric boundaries, the corners, when stressed, can cause adjacent edges to unfold synchronously, creating an overall tensile effect.

[0013] Optionally, the tensioning connector is provided with a tension indicator feature, which is used to characterize the degree of tension on the flexible protective bag after the tensioning connector is connected to the external fixing point.

[0014] Tension indicator features are installed on the tensioning connector to characterize the tension level after the connector is connected to an external fixed point. This makes the tensioning process, which originally relied on operational experience, visible and quantifiable. Operators can judge the current tension status by observing the indicator features, thereby reducing the possibility of insufficient or excessive tension due to human error.

[0015] Optionally, the tension indicator feature is a scale line.

[0016] Optionally, the tensioning connector is provided in two sets, and the two sets of tensioning connectors are respectively arranged on both sides in the height direction of the flexible protective bag.

[0017] By installing tensioning connectors on the top and bottom sides of the flexible protective bag along its height direction (i.e., perpendicular to the bottom plate of the transport carrier), a symmetrical tensioning structure is formed. When the liquid inside the bag surges due to inertia and impacts the protective bag, the upper and lower sets of tensioning connectors can simultaneously generate opposing tension forces, ensuring that the protective bag can fit flatly and firmly against the end face of the liquid bag throughout its entire height range, thus creating a stable load-bearing surface.

[0018] Optionally, the transport carrier has a front end facing the direction of travel and a rear end facing away from the direction of travel. Two liquid bags are disposed inside the transport carrier, and a flexible protective pouch is disposed between the two liquid bags. The flexible protective pouch wraps around the liquid bag near the rear end of the transport carrier.

[0019] In containerized liquid transportation, a particularly dangerous situation is emergency braking or deceleration of the vehicle. At this time, the liquid in the rear sack will surge violently backward due to inertia, creating compressive stress on the front sack. This solution addresses this by wrapping a flexible protective sleeve around the front face of the sack near the rear, preventing the rear sack from moving forward and thus reducing the likelihood of collisions between the two sacks.

[0020] Optionally, two flexible protective pouches are provided between adjacent liquid bags, with each flexible protective pouch wrapping around one of the two adjacent liquid bags.

[0021] Two flexible protective pockets are installed between adjacent bags, each independently wrapping the end of the two liquid bags. This gives each liquid bag an independent protective structure, allowing it to absorb energy separately upon impact, rather than sharing a single buffer layer, thereby improving the overall cushioning capacity.

[0022] Optionally, the liquid bag is fitted with a restraint strap.

[0023] A restraint strap is installed to circumferentially constrain the liquid bag. This structure can limit the radial expansion of the liquid bag under liquid pressure, keeping the liquid bag in a relatively stable shape.

[0024] This application has the following technical advantages: A flexible protective pocket is installed at the end of the liquid bag. A tensioning device then pulls the flexible protective pocket away from another liquid bag, effectively limiting the liquid bag's movement and preventing it from moving towards another bag. Compared to baffles in related technologies, the flexible protective pocket reduces the risk of scratching the liquid bag. Furthermore, the flexible protective pocket is lighter, foldable, and easier to store and install, improving loading and unloading efficiency during transportation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a transportation device according to an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of various shapes of a flexible protective bag in a transportation device according to an embodiment of this application.

[0027] Figure 3 This is a schematic diagram of the structure in a transportation device according to an embodiment of this application, in which a tensioning connector and a flexible protective bag are connected by a hook.

[0028] Figure 4 This is a schematic diagram of the overall structure of a transportation device according to an embodiment of this application.

[0029] Figure 5 This is an embodiment of the present application. Figure 3 Enlarged view of part A in the middle.

[0030] Reference numerals: 1. Flexible protective hood; 11. Edge; 12. Corner; 13. Central area; 14. Body; 15. Extension piece; 2. Tensioning connector; 3. Tensioning indicator feature; 4. Eyelet; 5. Hook; 6. Transport carrier; 7. Anchor; 8. Restraint strap; 9. Liquid bag. Detailed Implementation

[0031] This application discloses a transportation device.

[0032] Reference Figure 1 and Figure 2A transport device includes a transport carrier 6 and a liquid bag 9 disposed within the transport carrier 6. The liquid bag 9 is made of flexible material and is hollow inside, used to hold liquid goods. The transport carrier 6 is typically a container, a van, or an open railway wagon. A flexible protective pouch 1 is provided between adjacent liquid bags, and multiple tensioning connectors 2 are provided on the flexible protective pouch 1. The flexible protective pouch 1 can completely and tightly wrap around the end of the liquid bag 9 used for transporting liquid, forming a buffer and barrier layer at the end of the liquid bag 9. Anchors 7 are fixedly provided on the inner wall or bottom plate of the transport carrier 6. The end of the tensioning connector 2 away from the flexible protective pouch 1 is fixedly connected to the anchor 7. In this embodiment, the tensioning connector 2 is directly tied to the anchor 7.

[0033] Reference Figure 1 In a static assembly state, the flexible protective pouch 1 fits flat against the end of the liquid bag 9, and the tensioning connector 2 is in a pre-tensioned state. During transportation, when the liquid bag 9 tends to expand outward and shift axially due to bumps or sudden braking, the flexible protective pouch 1 generates a normal wrapping constraint force on the end face of the liquid bag 9. This constraint force is then converted into an axial tensile force on the tensioning connector 2 and transmitted to the external fixing point, thereby limiting the deformation and displacement of the liquid bag 9, absorbing collision kinetic energy, reducing the possibility of adjacent liquid bags 9 bursting due to mutual compression, and improving the structural stability and transportation safety of the liquid bag 9.

[0034] Reference Figure 1 and Figure 2 In this embodiment, the transport carrier 6 is a 40-foot container, which contains two liquid bags 9. Two flexible protective pouches 1 are positioned between the two liquid bags 9. Each flexible protective pouch 1 wraps around its corresponding liquid bag 9. Under the action of tension connectors 2, the flexible protective pouches 1 exert a force on the two liquid bags 9, causing them to move away from each other. Four tension connectors 2 are provided, which can be divided into upper and lower groups and fixed to the top and bottom walls of the container, respectively. During transportation, the two flexible protective pouches 1 can limit the movement of the two liquid bags 9, preventing them from colliding with each other and restricting their swaying, thus improving the stability of the liquid bags 9 during transportation. Of course, in specific transportation processes, there may be situations where only one liquid bag 9 is placed inside the transport carrier 6, but this liquid bag 9 cannot completely fill the transport carrier 6. In this case, it is sufficient to place a flexible protective pouch 1 at the end of the liquid bag near the rear of the vehicle.

[0035] In some embodiments, the flexible protective pouch 1 may also correspond to one liquid bag near the rear end of the transport carrier 6 (here, the rear end of the transport carrier is the rear of the vehicle, or the end away from the direction of vehicle travel, while the end near the direction of vehicle travel or the front of the vehicle is defined as the front end), with the flexible protective pouch 1 wrapping around the liquid bag near the rear end of the transport carrier 6. When the vehicle decelerates suddenly during operation, the liquid bag 9 at the rear end will push the flexible protective pouch 1 forward, and the flexible protective pouch 1 will block its forward movement, thereby preventing the two liquid bags 9 from colliding with each other and reducing the risk of bag bursting.

[0036] Reference Figure 1 and Figure 2 In one embodiment, the anchor 7 may be a rod-shaped structure. When the anchor 7 is a rod-shaped structure, it should extend away from the flexible protective pocket 1. In this case, the tensioning connector 2 can be tied to the anchor 7 and at the same time prevent the tensioning connector 2 from detaching from the anchor 7.

[0037] In another embodiment, the anchor 7 may also be a ring structure (not shown in the figure), which is welded to the transport carrier 6. The tensioning connector 2 passes through the anchor 7 and is tied to complete the fixed connection between the tensioning connector 2 and the anchor 7.

[0038] Reference Figure 1 In order to constrain the overall circumferential shape of the liquid bag 9, a restraining strap 8 is also provided on the outside of the liquid bag 9. The restraining strap 8 is distributed at equal intervals around the axial direction of the liquid bag 9 to limit the excessive radial expansion of the liquid bag 9 under hydraulic action.

[0039] Reference Figure 3 The flexible protective pouch 1 is configured as a polygonal sheet structure, specifically a rectangle in this embodiment. This geometry allows for effective folding and stress distribution with the end face of a conventional cylindrical or cubical bulging liquid bag 9. Furthermore, this shape corresponds to the shape of a transport vehicle or container, facilitating the installation of the flexible protective pouch 1. Specifically, the flexible protective pouch 1 includes an edge portion 11 and corner portions 12. Four tensioning connectors 2 are provided at the corner portions 12 of the flexible protective pouch 1, arranged symmetrically at the center. The stress points at the four corner portions 12 maximize the unfolding of the rectangular sheet structure, preventing localized stress concentration that could tear the flexible protective pouch 1.

[0040] Reference Figure 3 and Figure 4Of course, in other embodiments, the shape of the flexible protective pouch 1 can be adjusted according to the actual situation. For example, the flexible protective pouch 1 can be set as a hexagonal sheet structure (or an octagon or other polygons). For this type of shape, the number of tensioning connectors 2 can be adjusted according to the number of its corners 12. For example, when the flexible protective pouch 1 is a hexagonal sheet structure, six tensioning connectors 2 can be set corresponding to the corners 12 of the flexible protective pouch 1. When the rear end face of the liquid bag 9 filled with liquid is approximately circular or elliptical, compared with the rectangular structure, the hexagonal structure has more sides and corners and a more circular outline. When stretched outward by the six tensioning connectors 2, the flexible protective pouch 1 can form a more uniform radial tension, so that its central area 13 fits more smoothly against the cylindrical end face of the liquid bag 9, reducing the local wrinkling or stress gap areas that may occur when the rectangular structure fits against the circular end face, and improving the uniformity of the overall force.

[0041] Reference Figure 3 and Figure 4 The flexible protective pouch 1 can also be an irregularly shaped sheet structure, such as a cross, grid, or star. When the flexible protective pouch 1 is a cross-shaped sheet structure, it includes a central region 13 and four body parts 14 extending outwards from the central region 13. In this structure, tensioning connectors 2 can be fixedly connected to the ends of the four body parts 14 respectively. When the flexible protective pouch 1 is a grid-shaped sheet structure, it can be understood as being formed by two sets of rectangular sheet-like extension pieces 15 interlaced. In this case, eight tensioning connectors 2 can be provided corresponding to the ends of the extension pieces 15, that is, one tensioning connector 2 is provided at each end of the extension piece 15. When the flexible protective pouch 1 is star-shaped (not shown in the figure), one tensioning connector 2 can be provided at each corner 12 of the flexible protective pouch 1.

[0042] Reference Figure 3 and Figure 4 When the flexible protective pouch 1 is also a cross-shaped sheet structure, the central region 13 is aligned with the center of the end of the liquid bag 9, and the four body parts 14 are stretched along the four radial directions of the end face of the liquid bag 9, namely, up, down, left, and right. Compared with a complete rectangular sheet, the cross-shaped structure ensures sufficient strength in the key stress directions (i.e., the four radial tensile directions) while significantly reducing the material used in non-stress areas, achieving a lightweight design and reducing manufacturing costs. In addition, when the cross-shaped structure wraps the end of the liquid bag 9 with a large curvature, the gap formed between the body parts 14 allows the material to better adapt to the curved surface deformation, reducing material stacking during wrapping.

[0043] For the material of the flexible protective bag 1, this embodiment uses a high-strength polyester fiber base fabric coated with PVC (polyvinyl chloride) material, with its thickness parameter set between 1.5mm and 3.5mm. The 1.5mm thickness is suitable for small-volume, light-load scenarios to balance fit and flexibility; 3.5mm is suitable for heavy-load and harsh working conditions with a risk of friction and corrosion; and 2.5mm strikes a balance between tear resistance and ease of handling. This material ensures both smoothness and abrasion resistance when in contact with the liquid bag 9, while also providing extremely high tensile strength.

[0044] Reference Figure 3 In one embodiment, the end of the tensioning connector 2 is sewn to the corner 12 of the flexible protective pouch 1 using sewing thread. Specifically, the end of the tensioning connector 2 is overlapped on the surface of the flexible protective pouch 1 and then sewn together.

[0045] Reference Figure 3 and Figure 5 In another embodiment, eyelets 4 can be punched onto the corner 12 of the flexible protective pouch 1, thereby forming a through hole in the flexible protective pouch 1. In this structure, the tensioning connector 2 can be connected in the following ways: for example, a hook 5 can be directly provided at the end of the tensioning connector 2, and the hook 5 can be directly hooked into the eyelet 4; or one end of the tensioning connector 2 can pass through the eyelet 4 and be sewn together to achieve a fixed connection between the tensioning connector 2 and the flexible protective pouch 1; or one end of the tensioning connector 2 can pass through the eyelet 4 and be directly tied.

[0046] Reference Figure 3 The tensioning connector 2 is provided with a tension indicator feature 3, which is used to characterize the degree of tension on the flexible protective bag 1 after the tensioning connector 2 is connected to the external fixing point. In this embodiment, the tension indicator feature 3 is a scale line with high contrast color. In actual operation, the operator only needs to observe the change in the spacing of the scale line after it is stretched or the reserved exposed length to determine whether the current pretension force meets the requirements, reducing the situation of the pretension force being too loose (leading to the failure of the barrier) or too tight (leading to the rupture of the liquid bag 9 body) caused by subjective operation.

[0047] The principle of the transportation device provided in this application is as follows: First, a liquid bag 9 is laid in the transport carrier 6, and a restraining strap 8 is fitted over the outside of the liquid bag 9. A flexible protective pouch 1 is then fixed between adjacent liquid bags 9 via tensioning connectors 2. Liquid can then be injected into the liquid bag 9. When the transport vehicle is in motion, the huge inertial surge generated by the liquid impacts the end of the liquid bag 9. The flexible protective pouch 1 instantly tightens to bear the impact force, and the force is transmitted and unloaded to the anchors 7 of the transport carrier 6 through the four tensioning connectors 2.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transport device, comprising: The transport carrier (6) and at least one liquid bag (9) arranged in the transport carrier (6) are characterized in that the end of the liquid bag (9) is provided with a flexible protective pocket (1), or at least one liquid bag (9) between adjacent liquid bags (9) is provided with a flexible protective pocket (1), the flexible protective pocket (1) being able to wrap the end of the corresponding liquid bag (9); a plurality of tensioning connectors (2) are provided on the flexible protective pocket (1), one end of the tensioning connector (2) being fixedly connected to the flexible protective pocket (1), and the other end being used to be fixedly connected to the anchor (7) on the transport carrier (6).

2. The transport device according to claim 1, characterized in that, The flexible protective bag (1) is a polygonal sheet structure.

3. A transport device according to claim 2, characterized in that, The flexible protective pouch (1) includes an edge portion (11) and a corner portion (12), and a tensioning connector (2) is provided corresponding to the corner portion (12) of the flexible protective pouch (1).

4. A transport device according to claim 1, characterized in that, The tensioning connector (2) is provided with a tension indicator feature (3), which is used to characterize the tension of the flexible protective bag (1) after the tensioning connector (2) is connected to the external fixing point.

5. A transport device according to claim 4, characterized in that, The tension indicator feature (3) is a scale line.

6. A transport device according to claim 1, characterized in that, The tensioning connector (2) is provided in two sets, and the two sets of tensioning connectors (2) are respectively arranged on both sides of the height direction of the flexible protective bag (1).

7. A transport device according to claim 6, characterized in that, The transport carrier (6) has a front end facing the direction of travel and a rear end facing away from the direction of travel. Two liquid bags (9) are provided inside the transport carrier (6), and a flexible protective pouch (1) is provided between the two liquid bags (9). The flexible protective pouch (1) wraps around the liquid bag (9) near the rear end of the transport carrier (6).

8. A transport device according to claim 6, characterized in that, Two flexible protective pouches (1) are set between adjacent liquid bags (9), and the two flexible protective pouches (1) are respectively wrapped around the two adjacent liquid bags (9).

9. A transport device according to claim 6, characterized in that, The liquid bag (9) is fitted with a restraint strap (8) on the outside.

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