Kraft paper bag with separable internal space

By setting up a waterproof inner bag and partition in the kraft paper bag, the space separation and sealing is achieved using the plastic keel sealing clip and handle structure, the problem of insufficient space fixation and waterproof performance of the kraft paper bag is solved, and the convenience of use and waterproof effect is improved.

CN223279667UActive Publication Date: 2025-08-29ZHEJIANG SENLING PACKAGING CO LTD
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Patent Information

Application Number
CN202422827133.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-08-29
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

The internal space of the existing kraft paper bag is fixed, lacks effective spacing design, it is difficult to sort out the contents, and the waterproof performance at the ports is insufficient, which makes it easy to seep water, resulting in damage to the files.

Method used

A waterproof inner bag and compartment are provided in the kraft paper bag, and the plastic keel sealing clip is used for separation and sealing. The movement and fixation of the compartment is achieved through the handle and limit structure, combining the fixation of the sealing cardboard and adhesive plate.

Benefits of technology

It realizes multi-chamber separation of the inner space of the kraft paper bag, which facilitates classification and sorts contents, and improves waterproof performance, prevents moisture from infiltration and protects documents.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paper bags, in particular to a kraft paper bag with a separable internal space, which comprises a bag body, a waterproof inner bag is arranged on the inner wall of the bag body, a plastic keel sealing clip is arranged on the inner wall of the waterproof inner bag, an interlayer is arranged in an inner cavity of the bag body and positioned on the inner wall of the waterproof inner bag, and the inner wall of the waterproof inner bag is provided with a plastic keel sealing clip. A lifting handle is arranged at the end opening of the waterproof inner bag and located on the outer wall of the interlayer, and a sealing paperboard is arranged on the outer wall of the bag body; according to the utility model, the handle drives the interlayers to move, and the interlayers are stressed to open to divide the inner cavity of the bag body into a plurality of cavities, so that files can be stored conveniently, and the practicability of the bag body is improved; by pinching the plastic keel sealing clamps and pulling the plastic keel sealing clamps towards one side, the opposite plastic keel sealing clamps on the inner wall of the waterproof inner bag are clamped together, the waterproof inner bag can play a role in sealing files, the sticky plate is stuck to the outer wall of the sticky plate to be fixed, and practicability is better.
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Description

Technical Field

[0001] The utility model relates to the technical field of paper bags, in particular to a kraft paper bag with a divisible internal space. Background Art

[0002] Kraft paper bags, made from pure wood pulp, are widely used as packaging containers in the food, chemical, and pharmaceutical industries for their durability, environmental friendliness, and non-toxicity. Typically yellowish-brown or white, they possess high strength and excellent printability, capable of bearing the weight of heavy items while providing excellent protection. Kraft paper bags not only meet modern environmental protection requirements but are also part of a sustainable packaging solution due to their recyclable nature.

[0003] While existing kraft paper bags offer advantages such as durability and environmental friendliness, their internal space is typically fixed and lacks effective compartmentalization, making it difficult to sort and organize contents. This limitation results in low space utilization, preventing them from fully utilizing their capacity. Furthermore, while kraft paper bags possess a degree of waterproofing, their ends are sealed solely by cardboard. When submerged in water, the gaps allow moisture to seep in, potentially damaging the documents within.

[0004] Therefore, a kraft paper bag with a divisible inner space is needed to improve the above problems. Utility Model Content

[0005] In order to solve the problem that when a kraft paper bag is used, the internal space of the kraft paper bag is usually fixed, lacks an effective partition design, and is difficult to classify and organize the contents, the utility model provides a kraft paper bag with a divisible internal space to solve the above problem.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The bag is constructed by a process of sealing the bag and sealing the exterior of the bag, wherein the bag is constructed so that the bag can be opened and closed by a user. The bag is constructed so that the bag can be opened easily and easily.

[0008] As a preferred solution of the present invention, the partitions are provided in multiple groups and are respectively located on the inner wall of the waterproof inner bag, and the partitions are sequentially arranged on the inner wall of the waterproof inner bag from front to back.

[0009] As a preferred solution of the present invention, the handles are provided in multiple groups and are respectively arranged on the outer wall of the partition, and the adhesive plates are adhered and fixed to each other.

[0010] As a preferred solution of the present invention, the handle is located at the inner cavity port of the waterproof inner bag, and the sealing cardboard is located on one side of the waterproof inner bag.

[0011] As a preferred solution of the present invention, the cross-sections of the latch and the limiting piece are cross-shaped, and the limiting piece limits the limiting pull rope.

[0012] As a preferred solution of the present invention, the limiting pull rope is located on one side of the fixing pin, and the cross-section of the fixing pin and the limiting block is a cross structure.

[0013] As a preferred solution of the present invention, the top port of the waterproof inner bag is higher than the top port of the bag body, and two groups of plastic keel sealing clips are provided and are respectively located on opposite inner walls of the waterproof inner bag.

[0014] As a preferred solution of the present invention, the plastic keel sealing clip is located on one side of the port of the bag body, and the material of the interlayer is plastic-sealed paper material.

[0015] Compared with the prior art, the present invention can divide the inner cavity of the bag into multiple separate spaces by arranging partitions in the kraft paper bag with divisible internal space. The user only needs to pinch the handle and apply tension to the handle, so that the handle drives the partition to move. The partition is stretched open by the force to divide the inner cavity of the bag into multiple cavities, so as to facilitate the organization of documents, thereby improving the practicality of the bag, thereby solving the problem that the internal space of the kraft paper bag is usually fixed, lacks an effective partition design, and is difficult to classify and organize the contents.

[0016] The utility model provides a waterproof inner bag and a plastic keel sealing clip in a kraft paper bag with a divisible internal space. It is only necessary to pinch the plastic keel sealing clip and pull the plastic keel sealing clip to one side at the same time, so that the plastic keel sealing clips opposite to each other on the inner wall of the waterproof inner bag are clamped together. The waterproof inner bag can seal the documents, and the adhesive plate is attached to the outer wall of the adhesive plate for fixation, thereby solving the problem that the kraft paper bag has a certain waterproof performance, but its end is only sealed by the cardboard. When the whole is immersed in water, the gap is still easy to penetrate water, which may cause damage to the documents inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a side structural diagram of the present utility model;

[0019] Figure 3 This is a schematic diagram of the bag body structure of the present invention;

[0020] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the A structure;

[0021] Figure 5 For this utility model Figure 3 A magnified schematic diagram of the B structure.

[0022] In the figure: 1. Bag body; 2. Waterproof inner bag; 3. Plastic keel sealing clip; 4. Interlayer; 5. Handle; 6. Sealing cardboard; 7. Adhesive plate; 8. Fixed base; 9. Latch; 10. Limiting piece; 11. Limiting rope; 12. Writing panel; 13. Mounting base; 14. Fixing pin; 15. Limiting block; 16. Adhesive plate. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Example: See Figure 1-5 The kraft paper bag with a divisible internal space shown in the figure comprises a bag body 1, a waterproof inner bag 2 is provided on the inner wall of the bag body 1, a plastic keel sealing clip 3 is provided on the inner wall of the waterproof inner bag 2, an inner cavity of the bag body 1 and an inner wall of the waterproof inner bag 2 is provided with a partition 4, a handle 5 is provided at the end of the waterproof inner bag 2 and on the outer wall of the partition 4, a sealing cardboard 6 is provided on the outer wall of the bag body 1, an adhesive plate 7 is provided on the inner wall of the sealing cardboard 6, a fixing base 8 is provided on the outer wall of the fixing base 8, and a fixing base 8 is provided on the outer wall of the fixing base 8. A latch 9 is installed for plugging and unplugging, and a limiting piece 10 is provided on the outer wall of the latch 9. A limiting pull rope 11 is wound between the limiting piece 10 and the fixed base 8 and on the outer wall of the latch 9. A writing panel 12 is provided on the outer wall of the bag body 1. A mounting base 13 is installed on one side of the writing panel 12 and on the outer wall of the bag body 1. A fixing pin 14 is plugged and connected on the outer wall of the mounting base 13. A limiting block 15 is installed on the outer wall of the fixing pin 14. An adhesive plate 16 is provided on one side of the limiting block 15 and on the outer wall of the bag body 1.

[0025] In this embodiment, specific reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the interlayer 4 is provided with multiple groups and is respectively located on the inner wall of the waterproof inner bag 2, and the interlayer 4 is sequentially arranged on the inner wall of the waterproof inner bag 2 from front to back, the handle 5 is provided with multiple groups and is respectively arranged on the outer wall of the interlayer 4, the pasting plate 16 and the pasting plate 7 are pasted and fixed to each other, the handle 5 is located at the inner cavity port of the waterproof inner bag 2, the sealing cardboard 6 is located on one side of the waterproof inner bag 2, the cross section of the latch 9 and the limiting piece 10 is a cross structure, the limiting piece 10 limits the limiting pull rope 11, the limiting pull rope 11 is located on one side of the fixing pin 14, the cross section of the fixing pin 14 and the limiting block 15 is a cross structure, the top port of the waterproof inner bag 2 is higher than the top port of the bag body 1, two groups of plastic keel sealing clips 3 are provided and are respectively located on the opposite inner walls of the waterproof inner bag 2, the plastic keel sealing clip 3 is located on one side of the port of the bag body 1, and the material of the interlayer 4 is plastic-sealed paper material;

[0026] Among them, a writing panel 12 is provided on the outer wall of the bag body 1, and the information of the objects in the inner cavity of the bag body 1 can be filled in on the outer wall of the writing panel 12 to facilitate subsequent search.

[0027] Among them, a fixed base 8 is provided on the outer wall of the sealing cardboard 6, a latch 9 is installed and plugged in the outer wall of the fixed base 8, and a limiting piece 10 is provided on the outer wall of the latch 9, and a limiting pull rope 11 is wound between the limiting piece 10 and the fixed base 8 and on the outer wall of the latch 9. A writing panel 12 is provided on the outer wall of the bag body 1, and a mounting base 13 is installed on one side of the writing panel 12 and located on the outer wall of the bag body 1. A fixing pin 14 is plugged and connected on the outer wall of the mounting base 13, and a limiting block 15 is installed on the outer wall of the fixing pin 14. Under the action of the limiting pull rope 11, a tension is applied to the limiting pull rope 11, and then the limiting pull rope 11 is fixed to the outer wall of the limiting block 15. The bag body 1 can be fixed by tightening the limiting pull rope 11. After repeated use, if the limiting piece 10 and the limiting block 15 are damaged, the limiting piece 10 and the limiting block 15 can be replaced by simply pulling out the latch 9 and the fixing pin 14, which is more practical.

[0028] When the kraft paper bag with a divisible internal space of the present invention is in operation, a partition 4 is provided through the inner cavity of the bag body 1 and on the inner wall of the waterproof inner bag 2, and a handle 5 is provided at the end of the waterproof inner bag 2 and on the outer wall of the partition 4. When the bag body 1 is used, the user only needs to pinch the handle 5 and apply tension to the handle 5, so that the handle 5 drives the partition 4 to move. The partition 4 is stretched open by the force to divide the inner cavity of the bag body 1 into multiple cavities, so as to facilitate the organization of documents, thereby improving the practicality of the bag body 1, thereby solving the problem that the internal space of the kraft paper bag is usually fixed, lacks an effective partition design, and is difficult to classify and organize the contents.

[0029] The waterproof inner bag 2 is provided on the inner wall of the bag body 1, and the plastic keel sealing clip 3 is provided on the inner wall of the waterproof inner bag 2. When the document is placed between the partitions 4, the partitions 4 are located in the inner cavity of the waterproof inner bag 2. At the same time, there are multiple groups of partitions 4 and they are respectively located on the inner wall of the waterproof inner bag 2. The partitions 4 are sequentially arranged on the inner wall of the waterproof inner bag 2 from front to back. The top port of the waterproof inner bag 2 is higher than the top port of the bag body 1. There are two groups of plastic keel sealing clips 3 and they are respectively located on the opposite inner walls of the waterproof inner bag 2. Under the action of the plastic keel sealing clip 3 located on one side of the port of the bag body 1, the user only needs to pinch the plastic keel sealing clip 3 to open the bag. At the same time, the plastic keel sealing clip 3 is pulled to one side, so that the opposite plastic keel sealing clips 3 on the inner wall of the waterproof inner bag 2 are stuck together, and the waterproof inner bag 2 can seal the documents. Subsequently, a sealing cardboard 6 is provided on the outer wall of the bag body 1, and an adhesive plate 7 is provided on the inner wall of the sealing cardboard 6. Under the action of an adhesive plate 16 provided on one side of the limiting block 15 and on the outer wall of the bag body 1, the adhesive plate 7 is adhered to the outer wall of the adhesive plate 16 for fixation, thereby solving the problem that the kraft paper bag has a certain waterproof performance, but its port is only sealed by cardboard. When the whole is immersed in water, the gap is still easy to penetrate water, which may cause damage to the internal documents.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A kraft paper bag with a divisible inner space, comprising a bag body (1), characterized in that: The inner wall of the bag body (1) is provided with a waterproof inner bag (2), the inner wall of the waterproof inner bag (2) is provided with a plastic keel sealing clip (3), the inner cavity of the bag body (1) and the inner wall of the waterproof inner bag (2) are provided with a partition (4), the port of the waterproof inner bag (2) and the outer wall of the partition (4) are provided with a handle (5), the outer wall of the bag body (1) is provided with a sealing cardboard (6), the inner wall of the sealing cardboard (6) is provided with an adhesive plate (7), the outer wall of the sealing cardboard (6) is provided with a fixed base (8), the outer wall of the fixed base (8) is provided with a latch (9) which is pluggable and installed, and A limiting piece (10) is provided on the outer wall of the latch (9), a limiting drawstring (11) is wound between the limiting piece (10) and the fixed base (8) and located on the outer wall of the latch (9), a writing panel (12) is provided on the outer wall of the bag body (1), a mounting base (13) is installed on one side of the writing panel (12) and located on the outer wall of the bag body (1), a fixing pin (14) is plugged and connected on the outer wall of the mounting base (13), a limiting block (15) is installed on the outer wall of the fixing pin (14), and an adhesive plate (16) is provided on one side of the limiting block (15) and located on the outer wall of the bag body (1).

2. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The partitions (4) are provided in multiple groups and are respectively located on the inner wall of the waterproof inner bag (2), and the partitions (4) are sequentially provided on the inner wall of the waterproof inner bag (2) from front to back.

3. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The handles (5) are provided in multiple groups and are respectively arranged on the outer wall of the partition (4), and the adhesive plate (16) and the adhesive plate (7) are adhered and fixed to each other.

4. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The handle (5) is located at the inner cavity port of the waterproof inner bag (2), and the sealing cardboard (6) is located on one side of the waterproof inner bag (2).

5. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The cross-sections of the latch (9) and the limiting piece (10) are cross-shaped, and the limiting piece (10) limits the limiting pull rope (11).

6. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The limiting pull rope (11) is located on one side of the fixing pin (14), and the cross-sections of the fixing pin (14) and the limiting block (15) are a cross structure.

7. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The top port of the waterproof inner bag (2) is higher than the top port of the bag body (1), and two groups of plastic keel sealing clips (3) are provided and are respectively located on opposite inner walls of the waterproof inner bag (2).

8. The kraft paper bag with a divisible inner space according to claim 1, characterized in that: The plastic keel sealing clip (3) is located on one side of the end of the bag body (1), and the material of the partition layer (4) is plastic-sealed paper material.