Packaging bag
By introducing support units and sealing structures into the packaging bag, the problems of easy bag opening and unstable sealing are solved, the volume is increased and the waterproof performance is improved, making it suitable for packaging bags containing items with moisture.
Patent Information
- Application Number
- CN202423141100.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing packaging bags are inconvenient to close naturally when opening, and the sealing structure is unstable and easily damaged, especially when used in humid environments.
The design incorporates support units to open the bag opening and close it with a sealing structure. The support units include foldable multi-segment panels and sealing structures such as adhesive or Velcro, combined with a waterproof bottom and reinforcing layers to enhance the bag's structure.
It achieves stable opening and closing of the bag opening, increases the effective volume, prevents rainwater from entering, improves usability and waterproof performance, and is suitable for storing items containing water and is easy to fold and store.
Smart Images
Figure CN223467550U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packing bag technical field, concretely is a packing bag. BACKGROUND
[0002] The existing packing bag, especially the packing bag with soft material, such as cowhide bag, when loading articles into the bag, the opening is often naturally contracted after the bag body is folded and shaped, leading to the inconvenience of loading articles into the bag, and it is very inconvenient to open the opening with one hand while loading articles into the bag.
[0003] Many packing bags do not have a sealing structure, and are often used with an open mouth, which is easy to get wet inside when it rains, and when sealing is needed, the bag mouth is usually pinched together or rolled together, but it is easy to open after a long time, and pinching together or rolling together also reduces the use space in the bag body.
[0004] In addition, in some scenarios, the packing bag is used to load articles with moisture, such as fallen leaves, leaves, etc., or the packing bag is placed on a wet ground, and the bottom of the packing bag is easy to break. INVENTION CONTENTS
[0005] The utility model aims at providing a packing bag, which can at least solve some defects in the prior art.
[0006] To achieve the above-mentioned purpose, the utility model embodiment provides the following technical scheme: a packing bag, comprising a bag body with an opening, further comprising a supporting unit for opening the opening of the bag body and a sealing structure for closing the opening, the supporting unit is arranged on the outer wall of the bag body, and the supporting unit and the bag body are connected through the sealing structure.
[0007] Further, the supporting unit comprises a folding plate that can be folded to fit the inner wall of the bag body through the opening.
[0008] Further, the folding plate is a multi-section structure, and at least two adjacent sections of the multi-section structure are folded to the bag body.
[0009] Further, there is a crease line between adjacent sections.
[0010] Further, the multi-section structure comprises a first section, a second section and a third section connected in sequence, and part of the first section, part of the second section and part of the third section are folded to fit the inner wall of the bag body.
[0011] Further, the second section is arranged on the bag body, and the first section and the third section extend out of the bag body.
[0012] Further, the sealing structure comprises a glue or a magic tape, which is arranged on the supporting unit or the bag body.
[0013] Further, the bottom of the bag body is a waterproof bottom.
[0014] Further, the bag body is a degradable bag body.
[0015] Further, the bag body is provided with a reinforcing layer on the outer wall close to the opening.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] 1. The opening of the bag body can be expanded by the supporting unit, and the opening is closed by the sealing structure of the supporting unit after the bag body is filled, so that the problems of natural folding and closing of the bag opening are solved, the effective volume of the bag body is increased, and the bag body is convenient to store and collect.
[0018] 2. The waterproof bottom can effectively prevent moisture damage and is beneficial to the storage, transportation and collection of the packaging bag. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 The utility model provides a kind of initial folding state schematic view of packaging bag for embodiment of the utility model;
[0020] Figure 2 The schematic view is unfolded on the basis; Figure 1
[0021] Figure 3 The schematic view is further unfolded on the basis; Figure 2
[0022] Figure 4 The schematic view is further unfolded on the basis; Figure 3
[0023] Figure 5 The second section of the schematic view of the folding plate of the supporting unit is unfolded; Figure 4
[0024] Figure 6 The first section and the third section of the schematic view of the folding plate of the supporting unit are unfolded; Figure 5
[0025] Figure 7 The schematic view of the bag body is fully expanded; Figure 6
[0026] Figure 8 to fold the part of the first section, the part of the second section and the part of the third section of the flaps into the inner wall of the bag body on the basis of Figure 7 ;
[0027] Figure 9 to gather the opening of the bag body on the basis of Figure 7 ;
[0028] Figure 10 to cover the support unit on the outer wall of the bag body on the basis of Figure 9 ;
[0029] In the figure: 1-bag body; 10-opening; 11-strengthening layer; 12-waterproof bottom; 2-support unit; 20-adhesive; 21-fold line; 22-first section; 23-second section; 24-third section. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0031] Please refer to Figures 1 to 10 , the embodiment of the present application provides a packaging bag, which has an opening 10 for loading objects. Usually, when loading objects into the bag, one hand holds open the opening 10, i.e. the bag mouth, of the bag body 1, and the other hand loads objects into the bag, or in a short time when the bag mouth is held open, objects are loaded into the bag before the bag mouth is naturally gathered to be small. When the bag mouth is gathered, the bag mouth needs to be held open again. In practical applications, it is more troublesome, especially for large kraft paper packaging bags that can load tens of kilograms of objects, such as large kraft paper bags for loading grass and leaves, etc. Figure 1 , the packaging bag is small and flat after folding, as shown in Figures 2 to 4, the height of the bag will reach half of a person's height after opening, and the bag opening is extremely easy to naturally fold, causing inconvenience. For such a packaging bag, the embodiment improves it by designing a support unit 2 at the opening 10 of the bag body 1. The support unit 2 can be of the same material as the bag body 1, can be detachably installed on the bag body 1, or can be integrally formed on the bag body 1. The support unit 2 can cleverly prop open the opening 10 of the bag body 1, or in other words, maintain the opening 10 of the bag body 1 from easily naturally folding, so that people can conveniently put grass or leaves into the bag. After filling is completed, the opening 10 of the bag body 1 can be closed by a sealing structure, and the sealing structure is on the support unit 2, so there is no need to find other sealing measures, making the packaging bag more efficient. The support unit 2 can also prevent rainwater from entering the bag body after being sealed.
[0032] Refining the above-mentioned support unit 2, please refer to Figures 5 to 8 , the support unit 2 includes a folding plate that can be folded into the bag body 1 inner wall, thereby sticking to the bag body 1 inner wall, thus increasing the thickness of the bag body 1 inner wall, which can improve the shaping degree of the opening 10 and ensure that the opening 10 is not easily naturally folded when filling leaves or grass. Of course, in addition to using a folding plate to fold into the bag body 1 inner wall for support, a reversible support bar can also be provided on the bag body 1. When support is needed, the support bar is turned over to the bag body 1, and the opening 10 is propped up. The support bar is also arranged along the inner wall of the bag body 1, and multiple support bars can be provided to maintain the opening 10 in an open state.
[0033] Continuing to refine the above-mentioned folding plate, please refer to Figures 5 to 8 , the folding plate is a multi-segment structure, and at least two adjacent segments of the multi-segment structure are folded into the bag body 1. The multi-segment structure includes a first segment 22, a second segment 23, and a third segment 24 connected in sequence, and part of the first segment 22, part of the second segment 23, and part of the third segment 24 are folded to adhere to the inner wall of the bag body 1. The folding plate can be designed as a multi-segment structure, and at least two adjacent segments are folded into the inner wall of the bag body 1, for example, the first segment 22 and the second segment 23 are folded into the inner wall of the bag body 1, so that at least two sides of the bag body 1 are propped open, facilitating the loading of objects. For example, the second segment 23 and the third segment 24 are folded into the inner wall of the bag body 1, which is also the same. The optimal solution is that the first segment 22, the second segment 23, and the third segment 24 are all folded into the inner wall of the bag body 1, which can support three directions of the square opening 10, thereby ensuring that the opening 10 is propped open. Since the support structure needs to be arranged on the outer wall of the bag body 1 without affecting the loading of the opening 10, only part of the first segment 22, part of the second segment 23, and part of the third segment 24 are folded into the bag body 1. The first segment 22, the second segment 23, and the third segment 24 are arranged in sequence to form a rectangular structure. The size of the second segment 23 is consistent with the size of the surface provided for its installation on the bag body 1, and the second segment 23 and the third segment 24 can be symmetrically arranged with the second segment 23 as the center.Figure 6 、 Figure 7 and Figure 9 In the folded state, it can be seen that the first section 22 and the third section 24 both extend outside the bag body 1. Preferably, there are crease lines between adjacent sections, such as a crease line 21 between the first section 22 and the second section 23, and a crease line 21 between the second section 23 and the third section 24. In addition, a crease line 21 is also provided on the first section 22, a crease line 21 is also provided on the second section 23, and a crease line 21 is also provided on the third section 24, so that they can be partially folded into the bag body 1. In addition, the bag body 1 also has crease lines, and crease lines can be designed on both the bag body and the bag bottom, so that the packaging bag can be conveniently folded into the following shape: Figure 1 The flat plate structure shown is convenient for storage.
[0034] See also Figures 5 to 9 , details of the above-mentioned sealing structure, the sealing structure includes adhesive 20 or Velcro, the adhesive 20 or Velcro is provided on the support unit 2 or on the bag body. The sealing structure can be provided on the support unit 2, or on the bag body. If the sealing structure is on the bag body, when the support unit 2 covers the bag opening, the sealing structure needs to be able to connect the bag body 1 and the support unit 2, so the position design of the sealing structure needs to be paid attention to. The sealing method can use low-cost double-sided tape, Velcro, or other existing forms, such as mutually nested structures attached to the bag body and the support unit, which is not limited in this embodiment. By adjusting the position of the sealing structure and designing the size of the support structure, such as Figure 10 As shown, after the final support structure is bonded to the bag body 1, compared with the traditional rolled packaging bag (in order to ensure that the opening 10 is not easy to open by itself, it usually needs to be rolled more), the usable space in the bag is significantly improved, and resources are fully utilized.
[0035] See also Figures 1 to 10 The bottom of the bag body 1 is waterproof. Designing the bottom of the bag body 1 as a waterproof bottom can extend the service life of the packaging bag. The specific method of designing a waterproof bottom can be to attach a waterproof layer, such as a waterproof film or waterproof board, to the bottom outer wall of an existing kraft paper bag. However, this waterproof layer also needs to be made of a degradable material. This allows the packaging bag to be buried underground for biodegradation when it is filled with degradable materials such as grass and fallen leaves. The bottom waterproof 12 can be integrally formed with the bag body 1 or can be detachable, and this embodiment does not limit this.
[0036] See also Figures 1 to 10 The bag body 1 is a degradable bag body, such as a kraft bag. The packaging bag made of this type of material can be directly buried underground after collecting fallen leaves, weeds, etc. for biodegradation, thereby protecting the environment.
[0037] See also Figures 1 to 10The outer wall of the bag body 1 near the opening 10 is provided with a reinforcing layer 11. In the embodiment, the reinforcing layer 11 can be provided on the outer wall of the bag body 1 near the opening 10. The reinforcing layer 11 can also be regarded as a detailed scheme of the supporting unit 2, and can also increase the thickness of the bag body 1 at the opening 10, thereby improving the supporting effect at the opening 10. The reinforcing layer 11 can be a layer of paper or a piece of board, but also needs to be made of biodegradable and environmentally friendly materials.
[0038] In another embodiment, the packaging bag can also be designed with a handle to facilitate lifting the packaging bag. Preferably, the packaging bag is attached with a film near the bottom to improve the strength of the packaging bag, which can be dragged on the ground without being damaged, and also improves the convenience of use.
[0039] The above embodiments detail two use states of the packaging bag. Figures 1 to 7 It can be seen that the packaging bag gradually unfolds. Figure 8 The first section 22, the second section 23 and the third section 24 are folded into the bag body 1, and the bag body 1 at the opening 10 is supported to prevent the opening 10 from being naturally closed due to long folding time, thereby facilitating loading. After being filled, the first section 22, the second section 23 and the third section 24 are folded out of the bag body 1, as shown in FIG. 6, the opening 10 is pinched, as shown in FIG. 7, and the supporting unit 2 is covered on the opening 10, as shown in FIG. 8, and the opening 10 is closed by the sealing structure on the supporting unit 2, such as double-sided adhesive tape, magic tape, etc. Figure 9 Figure 10 Due to the crease line 21 of the supporting structure and the easily degradable material such as kraft paper, folding during supporting and closing is very easy, and use is very convenient. In addition, since the bottom of the packaging bag is designed as a waterproof bottom, even if the packaging bag contains wet grass or wet leaves, or the packaging bag is placed on a wet ground, the bottom of the packaging bag can be prevented from being damaged for a long time, thereby prolonging the service life. The improvement of the packaging bag to the existing packaging bag is small, the cost is low, but the efficiency can be improved and the damage can be reduced, the self-loading of grass or leaves is facilitated, and the non-damage of the packaging bag also facilitates the collection of the packaging bag without scattering on the ground, thereby greatly improving the convenience.
[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A packaging bag comprising a bag body having an opening, characterized by: The support unit is arranged on the outer wall of the bag body, and the support unit and the bag body are connected through the sealing structure.
2. The package of claim 1, wherein: The support unit comprises a foldable flange plate which is folded to adhere to the inner wall of the bag body through the opening.
3. The package of claim 2, wherein: The flange plate is a multi-section structure, and at least two adjacent sections of the multi-section structure are folded to the bag body.
4. The package of claim 3, wherein: There is a crease line between the adjacent sections.
5. The package of claim 3, wherein: The multi-section structure comprises a first section, a second section and a third section which are connected in sequence, and part of the first section, part of the second section and part of the third section are folded to adhere to the inner wall of the bag body.
6. The package of claim 5, wherein: The second section is arranged on the bag body, and the first section and the third section extend out of the bag body.
7. The package of claim 1, wherein: The sealing structure comprises adhesive or Velcro, which is arranged on the support unit or the bag body.
8. The package of claim 1, wherein: The bottom of the bag body is a waterproof bottom.
9. The package of claim 1, wherein: The bag body is a degradable bag body.
10. The package of claim 1, wherein: The bag body is provided with a reinforcing layer on the outer wall close to the opening.