Packaging paper bag with adjustable capacity

By introducing adjustable dividers and sealing structures into the packaging paper bags, the problem of non-adjustable packaging paper bag capacity is solved, enabling flexible capacity adjustment and adaptability of sealing, and reducing the risk of product damage and material waste.

CN223703596UActive Publication Date: 2025-12-23SHANDONG LONGJIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520368474.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-12-23
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

The current packaging paper bags have no adjustable capacity, which makes it impossible to properly package items, resulting in material waste or an increased risk of damage and loss.

Method used

A packaging paper bag comprising a bag body, a sealing bag, a divider, a folding assembly, and a sealing assembly was designed. Through the adjustment of the divider and the improvement of the sealing structure, the capacity can be flexibly adjusted and fixed.

Benefits of technology

It enables flexible adjustment of the packaging paper bag capacity, preventing items from shaking and breaking, and improving packaging efficiency and material utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a volume-adjustable packaging paper bag which comprises a bag body, and a first hook-and-loop fastener is fixedly connected to the bottom of the bag body. The sealing bag is rotationally connected to the outer side of the bag body through a rotating shaft; the partition plates are arranged on the inner side of the bag body, and the two sets of partition plates are in bilateral symmetry about the middle point of the bag body; the folding assembly is connected with the partition plate; the sealing assembly is arranged on the outer side of the bag body, and the sealing assembly is connected with the sealing bag; the carrying handles are fixedly connected to the front side and the rear side of the bag body; wherein the folding assembly is used for folding the partition plate; the sealing assembly is used for sealing the upper end of the bag body. According to the volume-adjustable packaging paper bag, the partition plate is arranged on the inner side of the bag body, so that the inner side of the bag body is divided into the upper part and the lower part, and when articles are few, the partition plate is transversely placed on the inner side of the bag body, so that the volume area of the inner side of the bag body is reduced, and the articles are prevented from shaking in the paper bag and increasing the risk of damage or loss.
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Description

TECHNICAL FIELD

[0001] The utility model relates to packing paper bag technical field, concretely is a kind of packing paper bag with adjustable capacity. BACKGROUND

[0002] The packing paper bag is a common packing bag in life, it is usually made of paper pulp, after processing, printing, forming and other processes, the paper quality of paper bag can be diverse, such as kraft paper, white cardboard, copperplate paper etc., these papers have different thickness, strength and appearance effect, can satisfy different packaging needs.

[0003] The application number CN201820484608.X relates to a kind of packing paper bag and packing bag, and it relates to the field of packaging technology.A kind of packing paper bag, bag body and bag mouth are integrally formed, increase the structural strength of packing paper bag, packing paper bag is used tough layer, paper layer, light-shielding layer and inner membrane layer, through the design of multilayer structure, increase strength, safety, and keep degradable, improve the effect of environmental protection.

[0004] The device is provided with a multilayer structure to increase the structural strength of the packing paper bag, but the capacity of the paper bag cannot be adjusted, when the volume of the goods inside the paper bag exceeds the fixed capacity of the paper bag, the paper bag may not be able to accommodate, resulting in the goods cannot be properly packaged, on the contrary, if the volume of the goods is much smaller than the capacity of the paper bag, there may be too much space inside the paper bag, which not only causes material waste, but also may cause the goods to shake inside the paper bag, increasing the risk of breakage or loss.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original capacity-adjustable packing paper bag structure. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of packing paper bag with adjustable capacity to solve the problem that the capacity of the paper bag cannot be adjusted as mentioned in the background art, when the volume of the goods inside the paper bag exceeds the fixed capacity of the paper bag, the paper bag may not be able to accommodate, resulting in the goods cannot be properly packaged, on the contrary, if the volume of the goods is much smaller than the capacity of the paper bag, there may be too much space inside the paper bag, which not only causes material waste, but also may cause the goods to shake inside the paper bag, increasing the risk of breakage or loss.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of packing paper bag with adjustable capacity, including bag body, the first magic paste is fixedly connected at the bottom of bag body;Seal bag, the seal bag is rotatably connected on the outside of bag body by rotating shaft;Partition, the partition is arranged on the inside of bag body, and the partition is left-right symmetrical about bag body midpoint and has two groups;Folding assembly, the folding assembly is connected with partition;

[0008] The sealing assembly is arranged outside the bag body and connected with the sealing bag; the handle is fixedly connected to the front and rear sides of the bag body; the folding assembly is used for folding the partition plate; and the sealing assembly is used for sealing the upper end of the bag body.

[0009] Preferably, the folding assembly comprises a concentric shaft and a spiral spring, the concentric shaft is rotationally connected to the inside of the bag body, and the outside of the concentric shaft is fixedly connected with the partition plate, and the spiral spring is connected with the ends of the concentric shaft and the outside of the bag body respectively.

[0010] Preferably, the folding assembly further comprises a traction rope and a cloth strip, the first end of the traction rope is arranged outside the concentric shaft, and the tail end of the traction rope is fixedly connected with the cloth strip.

[0011] Preferably, the folding assembly further comprises a second magic tape, the second magic tape is fixedly connected to the outside of the cloth strip, and the second magic tape is adhered to the first magic tape.

[0012] Preferably, the sealing assembly comprises a connecting head and a clamping groove, the connecting head is fixedly connected to the outside of the sealing bag, and the clamping groove is arranged in the inside of the connecting head.

[0013] Preferably, the sealing assembly further comprises a fixing block, an elastic spring and a clamping rod, the fixing block is fixedly connected to the outside of the bag body, the clamping rod is connected to the outside of the fixing block through the elastic spring, the clamping rod penetrates through the inside of the fixing block, and the tail end of the clamping rod is clamped in the clamping groove.

[0014] Preferably, the fixing block is arranged in two groups in up and down directions relative to the outside of the bag body.

[0015] Compared with the prior art, the capacity-adjustable packaging paper bag has the following beneficial effects:

[0016] 1. Capacity size adjusting structure, the inside of the bag body is divided into two parts by arranging the partition plate, when the articles are less, the partition plate is placed horizontally in the inside of the bag body, thereby reducing the capacity area of the inside of the bag body, avoiding the articles from shaking in the paper bag, and increasing the risk of breakage or loss;

[0017] Further, when it is needed to increase the capacity of the inside of the bag body, the cloth strip is pulled, so that the connected traction rope drives the concentric shaft to rotate, the rotation of the concentric shaft drives the partition plate of the bag body to overturn and fold, and the partition plate is placed in a vertical state in the inside of the bag body, so that the upper half and the lower half of the bag body are connected, thereby increasing the capacity of the bag body, and after the partition plate is adjusted, the second magic tape outside the cloth strip is adhered to the outside of the first magic tape, so that the partition plate is fixed, and the partition plate is prevented from rotating by itself.

[0018] 2. The structure of the sealing, when the bag inside the article is placed, the sealing bag is rotated by rotating shaft, so that the sealing bag covers the upper end of the bag, after the upper end of the bag is sealed, the clamping rod is manually pulled outward, then the tail of the connecting head is inserted into the inside of the fixed block, after the insertion is completed, the clamping rod is reset by the elastic force of the extension spring, so that the tail of the clamping rod is connected with the inside of the clamping groove, the connecting head is fixed, so that the sealing bag is fixed on the upper end of the bag, and when the article is large, the connecting head can be connected with different fixed blocks, so that the sealing position of the sealing bag is adjusted, so that it can adapt to different size of the article loading. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the whole three-dimensional structure schematic diagram of the utility model;

[0021] Figure 3 It is the three-dimensional structure schematic diagram of the folding assembly of the utility model;

[0022] Figure 4 It is the whole three-dimensional structure schematic diagram of the utility model Figure 2 It is the enlarged structure schematic diagram of A in the utility model;

[0023] Figure 5 It is the fixed block and connecting head connection structure schematic diagram of the utility model;

[0024] Figure 6 It is the whole three-dimensional structure schematic diagram of the utility model Figure 2 It is the enlarged structure schematic diagram of B in the utility model.

[0025] In the drawing: 1, bag; 2, first magic tape; 3, partition; 4, rotating shaft; 5, sealing bag; 6, folding assembly; 601, concentric shaft; 602, vortex spring; 603, traction rope; 604, cloth strip; 605, second magic tape; 7, sealing assembly; 701, connecting head; 702, clamping groove; 703, fixed block; 704, extension spring; 705, clamping rod; 8, handle. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0027] Please refer to Figures 1-6This utility model provides a technical solution: an adjustable capacity packaging paper bag, comprising:

[0028] Example 1: As Figures 1-4 The present invention provides a technical solution: an adjustable-capacity packaging paper bag, comprising: a bag body 1, with a first Velcro closure 2 fixedly connected to the bottom of the bag body 1; a sealing bag 5, which is rotatably connected to the outside of the bag body 1 via a rotating shaft 4; a partition 3, which is disposed on the inside of the bag body 1, and there are two sets of partitions 3 arranged symmetrically about the midpoint of the bag body 1; a folding assembly 6, which is connected to the partition 3; a sealing assembly 7, which is disposed on the outside of the bag body 1 and is connected to the sealing bag 5; and a handle 8, which is fixedly connected to the front and rear sides of the bag body 1; wherein, the folding assembly 6 is used to fold the partition 3; and the sealing assembly 7 is used to seal the upper end of the bag body 1.

[0029] The folding assembly 6 includes a concentric shaft 601 and a spiral spring 602. The concentric shaft 601 is rotatably connected to the inside of the bag body 1, and a partition 3 is fixedly connected to the outside of the concentric shaft 601. The two ends of the spiral spring 602 are respectively connected to the end of the concentric shaft 601 and the outside of the bag body 1. The folding assembly 6 also includes a traction rope 603 and a cloth strip 604. The first end of the traction rope 603 is wrapped around the outside of the concentric shaft 601, and the tail end of the traction rope 603 is fixedly connected to the cloth strip 604. The folding assembly 6 also includes a second Velcro 605, which is fixedly connected to the outside of the cloth strip 604 and is bonded to the first Velcro 2.

[0030] This structure divides the inside of the bag body 1 into upper and lower parts by setting a partition 3 inside the bag body 1. When there are few items, the partition 3 is placed horizontally inside the bag body 1, thereby reducing the capacity area inside the bag body 1 and preventing items from shaking inside the paper bag, which would increase the risk of damage or loss. When it is necessary to increase the capacity inside the bag body 1, the cloth strip 604 is pulled, which causes the connected traction rope 603 to drive the concentric shaft 601 to rotate. The rotation of the concentric shaft 601 causes the partition 3 of the bag body 1 to flip and fold, so that it is placed vertically inside the bag body 1, thereby connecting the upper and lower parts of the bag body 1 and increasing the capacity of the bag body 1. After the partition 3 is adjusted, the second Velcro 605 on the outside of the cloth strip 604 is glued to the outside of the first Velcro 2 to fix the partition 3 and prevent the partition 3 from rotating on its own.

[0031] Example 2: Figures 1-2 , Figures 5-6The technical scheme shown, the utility model provides a kind of capacity adjustable packing paper bag, disclose: sealing assembly 7 includes connecting head 701 and clamping groove 702, connecting head 701 is fixedly connected in the outer side of sealing bag 5, and connecting head 701 inside is provided with clamping groove 702;Sealing assembly 7 further includes fixed block 703, telescopic spring 704 and clamping rod 705, fixed block 703 is fixedly connected in the outer side of bag body 1, and fixed block 703 outside is connected with clamping rod 705 by telescopic spring 704, clamping rod 705 penetrates the inside of fixed block 703, and clamping rod 705 tail end is engaged with clamping groove 702;Fixed block 703 is about the outer side of bag body 1 and is provided with two groups in up and down arrangement;

[0032] This structure when the article in the inside of bag body 1 is placed, by rotating shaft 4 rotates sealing bag 5, to make sealing bag 5 cover on the upper end of bag body 1, after sealing bag 5 is sealed to the upper end of bag body 1, manually pull clamping rod 705 outward, then connecting head 701 tail part is inserted into the inside of fixed block 703, after insertion, release clamping rod 705, clamping rod 705 is reset by the elastic force of telescopic spring 704, to make clamping rod 705 tail end engagement is connected in the inside of clamping groove 702, the fixed connection of connecting head 701, to make sealing bag 5 fixed on the upper end of bag body 1, and when encountering larger article, can make connecting head 701 connect with different fixed block 703, to adjust the sealing position of sealing bag 5, make it can adapt to the loading of different size article.

[0033] The content not described in detail in the specification belongs to the prior art known to those skilled in the art.

[0034] 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 these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A volume-adjustable packaging paper bag, comprising a bag body (1), a first magic tape (2) fixedly connected to the bottom of the bag body (1), and a sealing bag (5) rotatably connected to the outer side of the bag body (1) through a rotating shaft (4). Characterized in that: a partition plate (3) is arranged on the inner side of the bag body (1), and the partition plate (3) is symmetric about the midpoint of the bag body (1) and has two groups; a folding assembly (6) is connected to the partition plate (3); a sealing assembly (7) is arranged on the outer side of the bag body (1) and connected to the sealing bag (5); a handle (8) is fixedly connected to the front and rear sides of the bag body (1); wherein the folding assembly (6) is used for folding the partition plate (3); the sealing assembly (7) is used for sealing the upper end of the bag body (1).

2. A paper bag according to claim 1, wherein: The folding assembly (6) comprises a concentric shaft (601) and a volute spring (602), the concentric shaft (601) is rotatably connected to the inner side of the bag body (1), and the outer side of the concentric shaft (601) is fixedly connected to the partition plate (3), and the two ends of the volute spring (602) are respectively connected to the end of the concentric shaft (601) and the outer side of the bag body (1).

3. A variable capacity paper bag according to claim 2, wherein: The folding assembly (6) further comprises a traction rope (603) and a cloth strip (604), the leading end of the traction rope (603) is wound on the outer side of the concentric shaft (601), and the trailing end of the traction rope (603) is fixedly connected to the cloth strip (604).

4. A variable capacity paper bag according to claim 3, wherein: The folding assembly (6) further comprises a second magic tape (605), the second magic tape (605) is fixedly connected to the outer side of the cloth strip (604), and the second magic tape (605) is adhered to the first magic tape (2).

5. A paper bag according to claim 1, wherein: The sealing assembly (7) comprises a connecting head (701) and a clamping groove (702), the connecting head (701) is fixedly connected to the outer side of the sealing bag (5), and the inner side of the connecting head (701) is provided with the clamping groove (702).

6. A variable capacity paper bag according to claim 5 wherein: The sealing assembly (7) further comprises a fixed block (703), a telescopic spring (704), and a clamping rod (705), the fixed block (703) is fixedly connected to the outer side of the bag body (1), and the outer side of the fixed block (703) is connected to the clamping rod (705) through the telescopic spring (704), the clamping rod (705) penetrates the inner side of the fixed block (703), and the trailing end of the clamping rod (705) is clamped in the clamping groove (702).

7. A variable capacity paper bag according to claim 6 wherein: The fixed block (703) is arranged in two groups on the outer side of the bag body (1).

Citation Information

Patent Citations

  • Packing container bag and wrapping bag

    CN208199249U