A bag with a collapsible mouth made of non-woven fabric
By introducing a shrinkable tightening component and a thickened structure into the non-woven fabric tote bag, the problem of the bag opening easily tipping over is solved, achieving both safe protection of the items inside the bag and improved aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU XUNING PACKAGING MATERIAL CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-05-29
AI Technical Summary
Existing non-woven tote bags lack a safety buckle design, which makes the bag opening easy to tip over and items easy to leak out, affecting the safety and appearance of the items.
A non-woven tote bag with a retractable opening was designed. The tightening components, including gears, pawls, cams, and elastic ropes, enable adjustable tightening of the bag opening. The structure is enhanced by thickening blocks and a thickened bottom plate.
It effectively prevents the contents of the bag from being exposed, improving the safety and appearance of the items, while also enhancing the load-bearing capacity and stability of the bag.
Smart Images

Figure CN224291429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tote bag technology, and in particular to a non-woven tote bag with a retractable opening. Background Technology
[0002] Non-woven fabric tote bags, as the name suggests, are tote bags made of non-woven fabric. They are a green product, durable, aesthetically pleasing, breathable, reusable, washable, and can be screen-printed with advertisements and logos. They have a long lifespan and are suitable for any company or industry for advertising, promotional gifts, and outer packaging. Consumers receive a beautiful non-woven bag while shopping, while businesses gain intangible advertising benefits—a win-win situation. Therefore, non-woven fabric is becoming increasingly popular in the market. The product uses non-woven fabric as its raw material, a new generation of environmentally friendly material, which features moisture resistance, breathability, flexibility, lightweight, non-flammability, easy decomposition, non-toxicity, non-irritation, rich colors, low price, and recyclability.
[0003] For example, a packaging bag disclosed in Chinese Patent No. CN209939353U works as follows: "It includes a bag body, a bag opening, and a handle; the middle part of the bag opening has an aesthetic section, and the bag opening has extension ends at both ends of the aesthetic section. The extension ends are folded inward into the bag body to form an installation section for mounting the handle; the aesthetic section includes a V-shaped, U-shaped, or semi-circular aesthetic notch. Its structure is aesthetically pleasing, has strong load-bearing capacity, and is simple to process. The installation section design, which attaches the end of the handle to the end of the bag opening, ensures the load-bearing capacity of the bag. In addition, the aesthetic notch at the bag opening ensures the aesthetics of the packaging bag. Due to the presence of the installation section, even with the aesthetic notch at the bag opening, the load-bearing capacity of the bag will not be reduced."
[0004] It mainly strengthens the load-bearing capacity of the bag by setting up an installation part, but it does not have a reasonable safety buckle, which makes it easy for objects to leak out when the bag is tilted, resulting in the loss or damage of the objects. At the same time, the bag can be easily pulled open with one hand, causing the items inside the bag to be exposed and affecting the safety of the items. Utility Model Content
[0005] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:
[0006] A nonwoven tote bag with a retractable opening includes a tote bag body, a tightening area at the top of the tote bag body, a flexible track inside the tightening area, a tightening block in the middle of one side of the flexible track, and a tightening component for controlling the shrinkage of the bag body inside the tightening block.
[0007] As an improvement to the above technical solution, the tightening component includes a gear, a first connecting rod is provided on one side of the gear, a throttle is provided at the other end of the first connecting rod, pawls are symmetrically provided below the gear, and a spring is provided on the outer side of the top of the pawl.
[0008] As an improvement to the above technical solution, a cam is provided between the pawls, a second connecting rod is provided on one side of the cam, and a lever is provided at the other end of the second connecting rod.
[0009] As an improvement to the above technical solution, a pulley is provided on the other side of the gear, and an elastic rope is provided on the outside of the pulley, the elastic rope being slidably connected within the flexible track.
[0010] As an improvement to the above technical solution, a first thickening block is symmetrically arranged at the top of the main body of the tote bag, and a lifting opening is provided inside the first thickening block. Second thickening blocks are symmetrically arranged on both sides of the first thickening block, and a lifting rope is provided inside the second thickening block. Fixing blocks are provided at both ends of the lifting rope, and a magnetic block is provided on the other side of the fixing block.
[0011] As an improvement to the above technical solution, the bottom of the main body of the tote bag is provided with a thickened bottom plate, and the main body of the tote bag is provided with several partitions.
[0012] As an improvement to the above technical solution, an outer pocket is provided on the outer side of the main body of the tote bag.
[0013] The beneficial effects of this utility model are:
[0014] First, adjust the lever's rotation position to tighten or loosen the bag. By adjusting the lever's rotation angle, the second connecting rod drives the cam to rotate. The cam controls the position of the pawls on both sides; rotating the cam squeezes one pawl away from the gear, causing the other pawl to engage with the gear. Since the gear can only rotate in the opposite direction of the pawl after meshing, it will be blocked by the pawl when rotating towards it. Therefore, to tighten the bag, turn the handle to drive the first connecting rod, which in turn drives the gear and the pulley on the other side of the gear. As the pulley rotates, it wraps the elastic cord connected to it around its outer side. As the elastic cord shortens, the flexible track on the outer side of the elastic cord will slowly squeeze the tightening area together until it is finally tightened. The tightening degree can be adjusted by turning the handle. Tightening the bag closes the opening, protecting the contents from being exposed. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2This is a cross-sectional view of the present invention;
[0017] Figure 3 This is a schematic diagram of the gear structure in this utility model;
[0018] Figure 4 This is a schematic diagram of the cam structure in this utility model.
[0019] Reference numerals: 1. Handbag body; 2. First thickened block; 3. Pull-out opening; 4. Fixing block; 5. Magnetic block; 6. Pull rope; 7. Outer pocket; 8. Tightening area; 9. Second thickened block; 10. Sectional fabric; 11. Flexible track; 12. Tightening block; 13. Thickened bottom plate; 14. Gear; 15. First connecting rod; 16. Turn handle; 17. Pawl; 18. Lever; 19. Second connecting rod; 20. Spring; 21. Elastic rope; 22. Pulley; 23. Cam. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.
[0021] Please refer to Figures 1-4 A nonwoven tote bag with a retractable opening includes a tote bag body 1. A tightening area 8 is provided at the top of the tote bag body 1. A flexible track 11 is provided on the inner side of the tightening area 8. A tightening block 12 is provided in the middle of one side of the flexible track 11. A tightening component for controlling the shrinkage of the bag body is provided inside the tightening block 12.
[0022] Specifically, the tightening component can control the tightness of the tightening area 8 at the top of the main body 1 of the handbag. It can be adjusted according to the user's needs. By tightening the bag body to close the bag opening, the contents of the bag are protected from being constantly exposed, thus protecting the contents and improving privacy.
[0023] Please refer to Figures 1-4 The tightening assembly includes a gear 14, a first connecting rod 15 on one side of the gear 14, a throttle 16 at the other end of the first connecting rod 15, pawls 17 symmetrically arranged below the gear 14, a spring 20 on the outer side of the top of the pawl 17, a cam 23 between the pawls 17, a second connecting rod 19 on one side of the cam 23, a lever 18 at the other end of the second connecting rod 19, a pulley 22 on the other side of the gear 14, an elastic rope 21 on the outer side of the pulley 22, and the elastic rope 21 is slidably connected to the flexible track 11.
[0024] Specifically, firstly, the rotation position of lever 18 is adjusted according to whether the bag body needs to be tightened or loosened. By adjusting the rotation angle of lever 18, the second connecting rod 19 drives cam 23 to rotate. Cam 23 controls the position of its two pawls 17. That is, by rotating cam 23, one pawl 17 is squeezed away from gear 14, so that the other pawl 17 contacts gear 14. Pawl 17 can approach gear 14 and engage with it due to the elasticity of its outer spring 20. After gear 14 and pawl 17 are engaged, gear 14 can only rotate in the opposite direction of pawl 17. When 14 rotates towards pawl 17, it will be blocked by pawl 17 and cannot rotate. Therefore, when it is necessary to tighten the bag, the first connecting rod 15 can be driven by rotating the handle 16 to drive the gear 14 and the pulley 22 on the other side of the gear 14 to rotate together. When the pulley 22 rotates, the elastic rope 21 connected to it will be wrapped around the outside. As the elastic rope 21 shortens, the flexible track 11 on the outside of the elastic rope 21 will slowly squeeze the tightening area 8 together and finally complete the tightening. The tightening degree can be adjusted by rotating the handle 16. Similarly, to loosen the bag, the lever 18 needs to be rotated to the other side, and then the handle 16 can be rotated in the opposite direction.
[0025] Please refer to Figures 1-4 The top of the main body 1 of the tote bag is symmetrically provided with a first thickening block 2, and a lifting opening 3 is provided inside the first thickening block 2. The two sides of the first thickening block 2 are symmetrically provided with a second thickening block 9, and a lifting rope 6 is provided inside the second thickening block 9. The two ends of the lifting rope 6 are provided with fixing blocks 4, and the other side of the fixing block 4 is provided with a magnetic block 5.
[0026] Specifically, the strength of the first thickened block 2 located at the top center of the main body 1 of the tote bag is enhanced, allowing the pull tab 3 located at the first thickened block 2 to withstand greater weight without tearing the bag or separating the pull tab 3 from the bag body. At the same time, the second thickened blocks 9 located on both sides of the first thickened block 2, together with the pull rope 6 connected inside, can distribute the pressure during long-term carrying, making it suitable for a more evenly distributed load. The fixed blocks 4 at both ends of the pull rope 6 limit its stretching length, and together with the second thickened blocks 9, it can also prevent the pull rope 6 from detaching from the bag body when it is pulled. When not in use, it can also be retracted into the bag body, and the magnetic blocks 5 can be used to attract the pull ropes 6 on both sides together to prevent them from hanging out and affecting the appearance.
[0027] Please refer to Figures 1-4 The bottom of the main body 1 of the tote bag is provided with a thickened bottom plate 13, and the main body 1 of the tote bag is provided with several partitions 10.
[0028] Specifically, the load-bearing capacity of the tote bag is enhanced by thickening the bottom plate 13, and the thickened bottom plate 13 also makes the tote bag body 1 more stable when in contact with the ground. The interior of the tote bag body 1 can be divided into multiple areas by the partition cloth 10 for placing different objects.
[0029] Please refer to Figures 1-4 An outer pocket 7 is provided on the outside of the main body 1 of the tote bag.
[0030] Specifically, the outer pocket 7 can be used to store smaller and frequently used items for easy access by the user.
[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A nonwoven tote bag with a retractable opening, comprising a tote bag body (1), characterized in that: The top of the main body (1) of the tote bag is provided with a tightening area (8), and a flexible track (11) is provided on the inner side of the tightening area (8). A tightening block (12) is provided in the middle of one side of the flexible track (11), and a tightening component for controlling the shrinkage of the bag is provided in the tightening block (12).
2. The nonwoven tote bag with a retractable opening as described in claim 1, characterized in that: The tightening assembly includes a gear (14), a first connecting rod (15) is provided on one side of the gear (14), a throttle (16) is provided at the other end of the first connecting rod (15), a pawl (17) is symmetrically provided below the gear (14), and a spring (20) is provided on the outer side of the top of the pawl (17).
3. The nonwoven tote bag with a retractable opening according to claim 2, characterized in that: A cam (23) is provided between the pawls (17), a second connecting rod (19) is provided on one side of the cam (23), and a lever (18) is provided at the other end of the second connecting rod (19).
4. The nonwoven tote bag with a retractable opening according to claim 2, characterized in that: A pulley (22) is provided on the other side of the gear (14), and an elastic rope (21) is provided on the outside of the pulley (22). The elastic rope (21) is slidably connected in the flexible track (11).
5. The nonwoven tote bag with a retractable opening according to claim 3, characterized in that: The top of the main body (1) of the tote bag is symmetrically provided with a first thickening block (2), and a lifting opening (3) is provided inside the first thickening block (2). The two sides of the first thickening block (2) are symmetrically provided with a second thickening block (9), and a lifting rope (6) is provided inside the second thickening block (9). The two ends of the lifting rope (6) are provided with fixing blocks (4), and the other side of the fixing block (4) is provided with a magnetic block (5).
6. The nonwoven tote bag with a retractable opening according to claim 1, characterized in that: The bottom of the main body (1) of the handbag is provided with a thickened bottom plate (13), and the main body (1) of the handbag is provided with several partitioned fabrics (10).
7. The nonwoven tote bag with a retractable opening according to claim 1, characterized in that: The outer side of the main body (1) of the tote bag is provided with an outer pocket (7).