A container bag that is easy to fold and transport

Abstract

This application provides a container bag that is easy to fold and transport, including an outer bag and an inner bag, the upper ends of which are connected to each other. It also includes: a winding assembly for winding the inner bag after loading, the winding assembly including a rotating shaft at the lower end of the inner bag and linkage ports at the front and rear ends of the inner bag; gears at both ends of the rotating shaft, and a soft rack at the outer end of each gear; and a cleaning assembly for scraping away internal dust during the winding process, the cleaning assembly including a movable scraper on the inner side of the inner bag, a top rod at the outer end of the movable scraper, and a telescopic rod at the upper end of the top rod. This application solves the problem that the design of container bags often makes it difficult to conveniently clean the inner wall of the inner bag during the winding process. Often, after folding and storage, environmental factors cause powder to adhere to the inner bag, leading to fraying when the inner bag is opened again.

Description

Technical Field

[0001] This invention relates to the field of container bag technology, and more specifically, to a container bag that is easy to fold and transport. Background Technology

[0002] FIBCs, also known as flexible bulk containers, are medium-sized bulk containers and a type of unitized container. Equipped with cranes or forklifts, they enable unitized transport of bulk powdery materials. They are convenient for transporting large quantities of bulk powdery materials, featuring large volume, light weight, and ease of loading and unloading. They are a common packaging material, characterized by simple structure, light weight, foldability, small space occupation when empty, and low price. FIBCs are flexible transport packaging containers with advantages such as moisture resistance, dust resistance, radiation resistance, and robust safety, while also possessing sufficient structural strength. Due to their ease of loading, unloading, and handling, FIBCs have significantly improved efficiency and have experienced rapid development in recent years. FIBCs are made primarily of polypropylene, with a small amount of stabilizing agents added for uniform mixing. The mixture is then melt-extruded into a plastic film using an extruder, cut into filaments, stretched, and heat-set to produce high-strength, low-elongation PP filaments. These filaments are then woven and laminated to create a woven plastic fabric base, which is then sewn together with lifting straps and other accessories to form the FIBC.

[0003] The prior art discloses a double-layer container bag (FIBC) according to CN114212392B, which includes a container bag body. The container bag body includes an upper bag body and a lower bag body with openings facing opposite directions. The outer sides of both the upper and lower bag bodies are wrapped with a reinforcing layer of mesh structure. The lower bag body can be flipped over and can be overlaid on the upper bag body. The upper bag body can be flipped over and can be overlaid on the lower bag body. The side wall of the opening end of the flipped lower bag body is movably connected to the side wall of the opening end of the upper bag body by Velcro I. A flexible discharge cylinder is provided at the bottom of the upper bag body. The discharge cylinder passes through the side wall of the sealing end of the lower bag body and folds outward. The bottom end of the discharge cylinder is folded outward and fixedly connected to the side wall of the sealing end of the lower bag body. Both the upper and lower bag bodies have arched portions I recessed inward toward their openings. The arched portions I are filled with filling strips I. The inner side walls of the upper and lower bag bodies are also vertically provided with straps. The container bag body also includes a sealing mechanism located in the top opening of the upper bag body. This invention features a simple structure and is easy to use. However, during the folding and storage of container bags, the device cannot easily clean the inner wall of the bag during the rolling process. Often, after folding, environmental factors cause powder to adhere to the inner bag, leading to fraying and dust dispersion when the bag is opened again, polluting the environment. Therefore, we have made improvements to this issue, proposing a container bag that is easy to fold and transport. Summary of the Invention

[0004] The purpose of this invention is to address the problem that current FIBC designs do not allow for convenient cleaning of the inner bag wall during the rolling process. Often, after storage and folding, the storage environment causes powder to adhere to the inner bag, leading to the bag bursting when it is opened again.

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

[0006] Container bags that are easy to fold and transport can improve the above-mentioned problems.

[0007] The application is as follows:

[0008] A container bag that is easy to fold and transport includes an outer bag and an inner bag, wherein the upper ends of the outer bag and the inner bag are connected to each other, and further includes:

[0009] A winding assembly is used to wind up the inner bag after loading. The winding assembly includes a rotating shaft at the lower end of the inner bag and linkage ports at the front and rear ends of the inner bag. The rotating shaft is provided with gears at both ends, and the outer ends of the gears are provided with soft racks. The outer ends of the soft racks are provided with slots. The inner ends of one set of gears are provided with slots, and the outer ends of the gears are provided with limiting sliders.

[0010] A cleaning assembly is used to scrape off internal dust during the inner bag winding process. The cleaning assembly includes a movable scraper located inside the inner bag, a top rod located at the outer end of the movable scraper, and a telescopic rod located at the upper end of the top rod. The number of movable scrapers is set to two sets, and the two sets of movable scrapers are movably connected to the top rod.

[0011] The attaching component is used to allow air to be vented at the bottom after the inner bag is inserted into the inner bag, so as to avoid an increase in air pressure between the inner bag and the outer bag, which would reduce the capacity of the inner bag. The attaching component includes a magnetic block that is magnetically attracted to the inner bag and a sliding rod and a spring for ventilation.

[0012] As a preferred technical solution of this application, the two ends of the rotating shaft are fixedly connected to the gears, the outer end of the gears is meshed with the soft rack, the soft rack is movably connected to the inner end of the slot, and the slot is embedded in the inner end of one set of gears for connecting an external micro motor.

[0013] As a preferred technical solution of this application, the limiting slider is wrapped around the outer end of the gear and the limiting slider is embedded in the inner end of the slot.

[0014] As a preferred technical solution of this application, the movable scraper is in contact with the inner surface of the inner bag, a sealing silicone strip is provided at the connection between the movable scraper and the top rod, the upper end of the top rod is fixedly connected to the lower end of the telescopic rod, a telescopic spring is movably connected to the inner end of the telescopic rod, a fixing rod is fixedly installed at the upper end of the telescopic rod, and the fixing rod is fixedly installed on the upper inner surface of the outer bag.

[0015] As a preferred technical solution of this application, the magnetic block is magnetically attracted to the outer surface of the inner bag, the lower end of the magnetic block is fixedly connected to the sliding rod, the spring is wrapped around the outer end of the sliding rod, and the lower end of the sliding rod is provided with a vent.

[0016] As a preferred technical solution of this application, it further includes: a folding assembly for storage after shipment, the folding assembly including a bottom plate located at the bottom of the outer bag and end plates movable at both ends of the bottom plate.

[0017] As a preferred technical solution of this application, a snap-fit ​​structure is provided between the end plate and the bottom plate. The snap-fit ​​structure is used for positioning between the end plate and the bottom plate. The snap-fit ​​structure includes a linkage float located at the lower end of the winding assembly. The lower end of the linkage float is provided with a first linkage rod, the lower end of the first linkage rod is provided with a second linkage rod, the outer end of the second linkage rod is provided with a locking block, and the outer end of the locking block is provided with a locking hole. The locking hole is embedded in the inner end of the end plate.

[0018] As a preferred technical solution of this application, the first linkage rod and the second linkage rod are movably connected, the second linkage rod and the locking block are movably connected, and the first linkage rod, the second linkage rod and the locking block are all movably installed on the inner end of the base plate. The outer end of the first linkage rod is provided with a linkage spring, and the two ends of the linkage spring are respectively fixedly connected to the linkage float and the base plate.

[0019] As a preferred technical solution of this application, the outer end of the end plate is movably connected to a side plate one, the upper end of the side plate one is movably connected to a side plate two, the upper end of the side plate two is movably connected to a side plate three, a hinge member one is movably connected between the side plate one and the side plate two, and a hinge member two is movably connected between the side plate two and the side plate three.

[0020] As a preferred technical solution of this application, the inner ends of the first hinge and the second hinge are provided with a locking rod and a linkage rod, the lower ends of the second side plate and the third side plate are provided with a locking groove, the outer end of the linkage rod is provided with a linkage rod, the outer end of the linkage rod is provided with a float and a connecting spring.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] In the scheme of this application:

[0023] 1. The set winding assembly is used to wind up the inner bag after loading. The external micro motor is interlocked with the corresponding FIBC slot. When the micro motor is started, the soft toothed rack on the FIBC located in the slots at both ends of the outer bag provides the gear in the shaft to rotate. The gear is limited along the slot by the limit slider. At this time, the shaft rotates as the gear moves up along the soft toothed rack. And through the linkage port, the folded parts on both sides of the inner bag are arranged, making the winding process convenient and driving the inner bag to wind up, thus ensuring the inner bag is wound up after loading.

[0024] 2. The system is equipped with a cleaning component for scraping off internal dust during the inner bag winding process. During the inner bag winding process, the top rod located on the inner side of the inner bag, under the action of the telescopic rod and the telescopic spring, drives the movable scrapers located at both ends of the top rod to scrape the inner side of the inner bag. At this time, the movable scrapers scrape the dust on the inner side of the inner bag upward. When it reaches the top, the telescopic rod is fully retracted. At this time, in the unfolded state, the scraped dust is poured out, which can greatly ensure the number of uses of the container bag and extend its service life.

[0025] At the same time, timely cleaning of the dust inside the bag can prevent dust from floating around when the bag is opened next time, thus realizing the concept of energy conservation and environmental protection.

[0026] 3. By setting up an attachment component, after the inner bag is inserted into the inner bag, the bottom can be vented to prevent the air pressure between the inner and outer bags from increasing, which would reduce the capacity of the inner bag. Through the mutual magnetic attraction of the inner and outer bags, the air pressure between the inner and outer bags increases at the beginning, and the inner bag bulges inward. When the inner bag and the magnetic block attract each other, the magnetic block drives the sliding rod to move upward, compressing the spring and exposing the vent, which facilitates ventilation and speeds up the pressure balance between the inner and outer bags, so that the inner and outer bags are completely attached. When the attachment is complete, the spring drives the sliding rod to move downward, and at this time the magnetic block returns to the inner surface of the outer bag.

[0027] 4. The folding assembly is designed for storage after shipment. When the inner bag is rolled up, the locking rods at the outer ends of hinge one and hinge two leave the locking grooves. Side plates one, two, and three can rotate according to the limiting conditions of their hinges. When the winding assembly moves upward, its lower end leaves the upper end of the linkage float, and the linkage float bounces under the action of the linkage spring. The first linkage rod, the second linkage rod, the locking block, and the locking hole between the bottom plate and the end plate separate from each other. Thus, after side plates one, two, and three are folded in a Z-shape, the corresponding end plates can be rotated along the bottom plate, which facilitates the folding of the folding assembly and completes the storage. Attached Figure Description

[0028] Figure 1A schematic diagram of the overall structure of the container bag for easy folding and transportation provided in this application;

[0029] Figure 2 A side-sectional internal structure diagram of a container bag for easy folding and transportation provided in this application;

[0030] Figure 3 The container bag provided in this application is easy to fold and transport. Figure 2 Front view plan;

[0031] Figure 4 The container bag provided in this application is easy to fold and transport. Figure 2 A magnified structural diagram of B in the diagram;

[0032] Figure 5 The container bag provided in this application is easy to fold and transport. Figure 1 A magnified structural diagram of A in the middle;

[0033] Figure 6 The container bag provided in this application is easy to fold and transport. Figure 5 A side-section enlarged structural diagram;

[0034] Figure 7 The container bag provided in this application is easy to fold and transport. Figure 2 A magnified structural diagram of C;

[0035] Figure 8 A partial front section structural diagram of the container bag for easy folding and transportation provided in this application;

[0036] Figure 9 The container bag provided in this application is easy to fold and transport. Figure 3 A magnified structural diagram of D in the diagram;

[0037] Figure 10 A cross-sectional view of one corner of the outer bag of the container bag provided in this application for easy folding and transportation;

[0038] Figure 11 The container bag provided in this application is easy to fold and transport. Figure 10 A magnified structural diagram of E in the middle.

[0039] The image shows:

[0040] 1. Outer bag; 2. Inner bag; 3. Rotating shaft; 4. Linkage port; 5. Gear; 6. Flexible rack; 7. Slot; 8. Groove; 9. Limiting slider;

[0041] 10. Top rod; 11. Movable scraper; 12. Telescopic rod; 13. Telescopic spring; 14. Fixed rod;

[0042] 15. Base plate; 16. Linkage spring; 17. Linkage float; 18. First linkage rod; 19. Second linkage rod; 20. Locking block; 21. Locking hole; 22. End plate; 23. Side plate one; 24. Side plate two; 25. Side plate three; 26. Hinge one; 27. Hinge two; 28. Float two; 29. ​​Linkage rod one; 30. Linkage rod two; 31. Locking rod one; 32. Locking groove;

[0043] 33. Magnetic block; 34. Ventilation opening; 35. Spring 1; 36. Sliding rod. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely to illustrate some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of the present invention can be combined with each other.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] like Figure 1-11 As shown, this embodiment proposes a container bag that is easy to fold and transport, including an outer bag 1 and an inner bag 2, wherein the upper ends of the outer bag 1 and the inner bag 2 are connected to each other, and further includes:

[0048] A winding assembly is used to wind up the inner bag 2 after loading is completed. The winding assembly includes a rotating shaft 3 located at the lower end of the inner bag 2 and a linkage port 4 located at the front and rear ends of the inner bag 2. The two ends of the rotating shaft 3 are provided with gears 5, the outer ends of the gears 5 are provided with soft racks 6, the outer ends of the soft racks 6 are provided with slots 8, the inner ends of one set of gears 5 are provided with slots 7, and the outer ends of the gears 5 are provided with limiting sliders 9.

[0049] The two ends of the rotating shaft 3 are fixedly connected to the gear 5. The outer end of the gear 5 is meshed with the soft rack 6. The soft rack 6 is movably connected to the inner end of the slot 8. The slot 7 is embedded in the inner end of one set of gears 5 for connecting an external micro motor.

[0050] The limiting slider 9 is wrapped around the outer end of the gear 5, and the limiting slider 9 is engaged in the inner end of the slot 8.

[0051] During operation, an external micro motor engages with the corresponding slot 7 of the container bag. When the micro motor is activated, the soft toothed rack 6 located in the slots 8 at both ends of the outer bag 1 provides a mechanism for the gear 5 in the rotating shaft 3 to rotate. The gear 5 is limited along the slots 8 by the limiting slider 9. As the gear 5 moves upward along the soft toothed rack 6, the rotating shaft 3 rotates. Through the linkage port 4, the folded parts on both sides of the inner bag 2 are arranged, making the winding process convenient and driving the inner bag 2 to be wound up, thus ensuring the winding of the inner bag 2 after loading.

[0052] First, the connection between gear 5 and soft rack 6 can stably drive the inner bag 2 to roll up;

[0053] Secondly, the design of the soft toothed strip 6 makes it easy to fold the outer bag 1.

[0054] As a preferred embodiment, based on the above method, a further cleaning component is provided for scraping off internal dust during the winding process of the inner bag 2. The cleaning component includes a movable scraper 11 located inside the inner bag 2, a top rod 10 located at the outer end of the movable scraper 11, and a telescopic rod 12 located at the upper end of the top rod 10. The number of movable scrapers 11 is set to two sets, and the two sets of movable scrapers 11 are movably connected to the top rod 10. The movable scraper 11 is in contact with the inner surface of the inner bag 2. A sealing silicone strip is provided at the connection between the movable scraper 11 and the top rod 10. The upper end of the top rod 10 is fixedly connected to the lower outer surface of the telescopic rod 12. A telescopic spring 13 is movably connected to the inner end of the telescopic rod 12. A fixing rod 14 is fixedly installed at the upper end of the telescopic rod 12. The fixing rod 14 is fixedly installed on the upper inner surface of the outer bag 1.

[0055] During operation, the top rod 10 on the inner side of the inner bag 2, under the action of the telescopic rod 12 and the telescopic spring 13, drives the movable scrapers 11 located at both ends of the top rod 10 to scrape the inner side of the inner bag 2. At this time, the movable scrapers 11 scrape the dust located on the inner side of the inner bag 2 upward. When it moves to the top, the telescopic rod 12 is fully retracted. At this time, in the unfolded state, the scraped dust is poured out, which can greatly ensure the number of uses of the container bag and extend its service life.

[0056] First, the movable scraper 11 moves upward to scrape the inner surface of the inner bag 2, so that the inner surface of the inner bag 2 is cleaned.

[0057] Secondly, the telescopic rod 12 is used to push the top rod 10 upward by the winding assembly, and the two fit together tightly.

[0058] In a preferred embodiment, based on the above method, a further attachment component is provided. After the inner bag 2 is inserted into the inner bag 1, the bottom end can be vented to prevent the air pressure between the inner bag 2 and the outer bag 1 from increasing, which would reduce the capacity of the inner bag 2. The attachment component includes a magnetic block 33 that is magnetically attracted to the inner bag 2, a sliding rod 36 for ventilation, and a spring 35. The magnetic block 33 is magnetically attracted to the outer surface of the inner bag 2. The lower end of the magnetic block 33 is fixedly connected to the sliding rod 36. The spring 35 wraps around the outer end of the sliding rod 36. The lower end of the sliding rod 36 is provided with a ventilation opening 34.

[0059] During operation, the inner bag 2 and the magnetic block 33 on the inner side of the outer bag 1 attract each other. Initially, the air pressure between the inner bag 2 and the outer bag 1 increases, causing the inner bag 2 to bulge inward. When the inner bag 2 and the magnetic block 33 attract each other, the magnetic block 33 drives the sliding rod 36 to move upward, compressing the spring 35 and exposing the ventilation opening 34, which facilitates ventilation and accelerates the pressure balance between the inner bag 2 and the outer bag 1, thus ensuring complete adhesion between the inner bag 2 and the outer bag 1. When the adhesion is complete, the spring 35 drives the sliding rod 36 to move downward, at which point the magnetic block 33 returns to the inner surface of the outer bag 1.

[0060] First, the sliding rod 36 moves upward under the upward attraction of the magnetic block 33;

[0061] Secondly, the sliding rod 36 moves upward to expose the ventilation opening 34, which facilitates the circulation of internal and external air and achieves pressure balance.

[0062] As a preferred embodiment, based on the above method, a folding assembly is further provided for storage after shipment. The folding assembly includes a bottom plate 15 located at the bottom end of the outer bag 1 and end plates 22 movable at both ends of the bottom plate 15. A snap-fit ​​structure is provided between the end plates 22 and the bottom plate 15. The snap-fit ​​structure is used for positioning between the end plates 22 and the bottom plate 15. The snap-fit ​​structure includes a linkage float 17 located at the lower end of the winding assembly. The lower end of the linkage float 17 is provided with a first linkage rod 18. The lower end of the first linkage rod 18 is provided with a second linkage rod 19. The outer end of the second linkage rod 19 is provided with a locking block 20. The outer end of the locking block 20 is provided with a locking hole 21. The locking hole 21 is embedded and installed at the inner end of the end plate 22. The first linkage rod 18 is movably connected to the second linkage rod 19, and the second linkage rod 19 is movably connected to the locking block 20. The first linkage rod 18, the second linkage rod 19 and the locking block 20 are all movably installed on the inner end of the base plate 15. The outer end of the first linkage rod 18 is provided with a linkage spring 16, and the two ends of the linkage spring 16 are fixedly connected to the linkage float 17 and the base plate 15, respectively.

[0063] The outer end of the end plate 22 is movably connected to a side plate 23. The upper end of the side plate 23 is movably connected to a side plate 24. The upper end of the side plate 24 is movably connected to a side plate 25. A hinge 26 is movably connected between the side plate 23 and the side plate 24. A hinge 27 is movably connected between the side plate 24 and the side plate 25. The inner ends of the hinge 26 and the hinge 27 are each provided with a locking rod 31 and a linkage rod 30. The lower ends of the side plate 24 and the side plate 25 are each provided with a locking groove 32. The outer end of the linkage rod 20 is provided with a linkage rod 29. The outer end of the linkage rod 29 is provided with a float 28. The outer end of the linkage rod 29 is provided with a connecting spring.

[0064] During operation, the float 28 bounces under the action of the connecting spring, causing the locking rod 31 at the outer end of the hinge 26 and the hinge 27 to leave the locking groove 32. At this time, the side plate 23, the side plate 24 and the side plate 35 can rotate according to the limiting conditions of their hinges. When the winding assembly moves upward, its lower end leaves the linkage float 17, so that the linkage float 17 bounces under the action of the linkage spring 16. The first linkage rod 18, the second linkage rod 19 and the locking block 20 and the locking hole 21 between the bottom plate 15 and the end plate 22 separate from each other. Thus, after the side plate 23, the side plate 24 and the side plate 3 25 are folded along the Z-shape, the corresponding end plate 22 can be rotated along the bottom plate 15 to achieve the purpose of folding.

[0065] The interlocking between side plate 1 23, side plate 24 and side plate 3 25 is achieved by the inner bag 2 filled with material contacting its corresponding float 28 to achieve connection and support.

[0066] First, the linkage float 17 bounces under the action of the linkage spring 16, causing the first linkage rod 18, the second linkage rod 19, the locking block 20, and the locking hole 21 between the bottom plate 15 and the end plate 22 to separate from each other.

[0067] Secondly, side plate 1 23, side plate 24 and side plate 3 25 can rotate according to the limiting conditions of their hinges;

[0068] Furthermore, after side plate 1 23, side plate 24 and side plate 3 25 are folded along a Z-shape, they fit together with the upper inner surface of end plate 22.

[0069] Finally, the use of the bottom plate 15 and the end plate 22 can help improve the wear resistance of the container bag and the stability of the bottom frame.

[0070] When this application is in use: When it is necessary to store the used container bags, an external micro motor is engaged with the corresponding container bag slot 7. Activating the micro motor causes the soft toothed rack 6 located in the slots 8 at both ends of the outer bag 1 to provide rotation for the gear 5 in the rotating shaft 3. The gear 5 is limited along the slots 8 by the limiting slider 9. As the gear 5 moves upward along the soft toothed rack 6, the rotating shaft 3 rotates, and through the linkage port 4, the folded parts on both sides of the inner bag 2 are arranged, making the rolling process convenient and driving the inner bag 2 to roll up, thus ensuring the inner bag 2 is rolled up after loading. During the rolling process of the inner bag 2, the top rod 10 located inside the inner bag 2, under the action of the telescopic rod 12 and the telescopic spring 13, drives the movable scrapers 11 located at both ends of the top rod 10 to scrape the inside of the inner bag 2. At this time, the movable scrapers 11 scrape the dust inside the inner bag 2 upward. When it reaches the top, the telescopic spring 13... When rod 12 is fully retracted, the scraped dust is poured out in the folded state, which greatly ensures the number of uses of the container bag and extends its service life. When the inner bag 2 is rolled up, the locking rod 31 located at the outer end of hinge 1 26 and hinge 2 27 is removed from the locking groove 32. At this time, side plate 1 23, side plate 24 and side plate 3 25 can rotate according to the limiting conditions of their hinges. When the winding assembly moves up, its lower end is removed from the upper end of the linkage float 17, and the linkage float 17 bounces under the drive of the linkage spring 16. The first linkage rod 18, the second linkage rod 19 and the locking block 20 and locking hole 21 between the bottom plate 15 and the end plate 22 are separated from each other. Thus, after the side plate 1 23, side plate 24 and side plate 3 25 are folded along the Z-shape, the corresponding end plate 22 can be rotated along the bottom plate 15, which facilitates the folding of the folding assembly and completes the storage.

[0071] When the winding assembly opens the inner bag 2, in order to ensure that the inner bag 2 can quickly cover the inner end of the outer bag 1 and reduce the air pressure fluctuation between the two, the inner bag 2 and the magnetic block 33 on the inner side of the outer bag 1 are magnetically attracted to each other. At first, the air pressure between the inner bag 2 and the outer bag 1 increases, and the inner bag 2 bulges inward. When the inner bag 2 and the magnetic block 33 attract each other, the magnetic block 33 drives the sliding rod 36 to move upward, squeezing the spring 35 and exposing the ventilation opening 34, which facilitates ventilation and speeds up the pressure balance between the inner bag 2 and the outer bag 1, so that the inner bag 2 and the outer bag 1 are completely attached. When the attachment is complete, the spring 35 drives the sliding rod 36 to move downward, and the magnetic block 33 returns to the inner surface of the outer bag 1.

[0072] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A container bag that is easy to fold and transport, comprising an outer bag (1) and an inner bag (2), characterized in that, The outer bag (1) and the inner bag (2) are connected at their upper ends, and the outer bag (1) and the inner bag (2) are further comprising: A winding assembly is used to wind up the inner bag (2) after it has been loaded. The winding assembly includes a rotating shaft (3) located at the lower end of the inner bag (2) and a linkage port (4) located at the front and rear ends of the inner bag (2). The two ends of the rotating shaft (3) are provided with gears (5). The outer ends of the gears (5) are provided with soft racks (6). The outer ends of the soft racks (6) are provided with slots (8). The inner ends of one set of gears (5) are provided with slots (7). The outer ends of the gears (5) are provided with limiting sliders (9). A cleaning assembly is used to scrape off the dust inside the inner bag (2) during the winding process. The cleaning assembly includes a movable scraper (11) located inside the inner bag (2), a top rod (10) located at the outer end of the movable scraper (11), and a telescopic rod (12) located at the upper end of the top rod (10). The number of movable scrapers (11) is set to two sets, and the two sets of movable scrapers (11) are movably connected to the top rod (10). The attachment component is used to vent air at the bottom after the inner bag (2) is inserted into the inner bag (1) to avoid increasing the air pressure between the inner bag (2) and the outer bag (1) and causing the inner bag (2) to have a smaller capacity. The attachment component includes a magnetic block (33) that is magnetically attracted to the inner bag (2), a sliding rod (36) for ventilation, and a spring (35). The two ends of the rotating shaft (3) are fixedly connected to the gear (5), the outer end of the gear (5) is meshed with the soft rack (6), the soft rack (6) is movably connected to the inner end of the slot (8), and the slot (7) is embedded in the inner end of one of the gears (5) for connecting an external micro motor. The limiting slider (9) is wrapped around the outer end of the gear (5), and the limiting slider (9) is embedded in the inner end of the slot (8); The movable scraper (11) is in contact with the inner surface of the inner bag (2). A sealing silicone strip is provided at the connection between the movable scraper (11) and the top rod (10). The upper end of the top rod (10) is fixedly connected to the lower outer surface of the telescopic rod (12). A telescopic spring (13) is movably connected to the inner end of the telescopic rod (12). A fixing rod (14) is fixedly installed at the upper end of the telescopic rod (12). The fixing rod (14) is fixedly installed on the upper inner surface of the outer bag (1).

2. The container bag for easy folding and transportation according to claim 1, characterized in that, The magnetic block (33) is magnetically attracted to the outer surface of the inner bag (2). The lower end of the magnetic block (33) is fixedly connected to the sliding rod (36). The spring (35) is wrapped around the outer end of the sliding rod (36). The lower end of the sliding rod (36) is provided with a vent (34).

3. A container bag for easy folding and transportation according to claim 1, characterized in that, Also includes: A folding assembly for storage after shipment, the folding assembly including a bottom plate (15) located at the bottom of the outer bag (1) and end plates (22) movable at both ends of the bottom plate (15).

4. A container bag for easy folding and transportation according to claim 3, characterized in that, The end plate (22) and the bottom plate (15) are provided with a snap-fit ​​structure. The snap-fit ​​structure is used for positioning between the end plate (22) and the bottom plate (15). The snap-fit ​​structure includes a linkage float (17) located at the lower end of the winding assembly. The lower end of the linkage float (17) is provided with a first linkage rod (18). The lower end of the first linkage rod (18) is provided with a second linkage rod (19). The outer end of the second linkage rod (19) is provided with a locking block (20). The outer end of the locking block (20) is provided with a locking hole (21). The locking hole (21) is embedded in the inner end of the end plate (22).

5. A container bag for easy folding and transportation according to claim 4, characterized in that, The first linkage rod (18) is movably connected to the second linkage rod (19), and the second linkage rod (19) is movably connected to the locking block (20). The first linkage rod (18), the second linkage rod (19) and the locking block (20) are all movably installed on the inner end of the base plate (15). The outer end of the first linkage rod (18) is provided with a linkage spring (16), and the two ends of the linkage spring (16) are fixedly connected to the linkage float (17) and the base plate (15) respectively.

6. A container bag for easy folding and transportation according to claim 5, characterized in that, The outer end of the end plate (22) is movably connected to a side plate one (23), the upper end of the side plate one (23) is movably connected to a side plate two (24), the upper end of the side plate two (24) is movably connected to a side plate three (25), a hinge one (26) is movably connected between the side plate one (23) and the side plate two (24), and a hinge two (27) is movably connected between the side plate two (24) and the side plate three (25).

7. A container bag for easy folding and transportation according to claim 6, characterized in that, The inner ends of the first hinge (26) and the second hinge (27) are provided with a first locking rod (31) and a second linkage rod (30). The lower ends of the second side plate (24) and the third side plate (25) are provided with a locking groove (32). The outer end of the second linkage rod (30) is provided with a first linkage rod (29). The outer end of the first linkage rod (29) is provided with a second float (28). The outer end of the first linkage rod (29) is provided with a connecting spring.

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