Waterproof packaging paper bag
Through the fastening design of hollow box and nylon rope, combined with waterproof membrane and water-absorbing board, the stability and waterproofing problems of waterproof packaging paper bags under heavy loading and humid environment are solved, and the stable bundling and waterproofing effect of waterproof paper bags are achieved.
Patent Information
- Application Number
- CN202422892081.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-26
AI Technical Summary
When the existing waterproof paper bags are used to pack heavy items, the drawstrings are not fixed firmly and are easy to come off, causing damage to the bags. In addition, the waterproof performance is reduced in a humid environment.
It adopts a hollow box and fixed plate structure with an inner sliding connection, combined with a fastening design of nylon rope and ribbon rope. The outer waterproof membrane ensures sealing. The rope is tightened and fixed by knots to prevent it from detaching, and the absorbent plate is used to absorb moisture to enhance the waterproof effect.
It can achieve stable bundling of heavy items and prevent them from falling off, ensure waterproof performance in rainy days and high humidity environments, and avoid the packaging bags from breaking and the contents from scattering.
Smart Images

Figure CN223315524U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging paper tapes, in particular to a waterproof packaging paper bag. Background Art
[0002] Packaging paper bags can protect products from damage by external physical factors. They have a certain buffering capacity. Although not as good as some plastic or foam packaging materials, they can provide basic physical protection under reasonable packaging design. However, even some lightly processed papers will lose their waterproof ability due to the gradual penetration of water molecules after prolonged contact with water or in a high humidity environment. When the packaging paper bag absorbs water, its strength will decrease significantly.
[0003] With the development of society, people have higher and higher requirements for product packaging. In the field of logistics and transportation, goods may experience various complex environments, including rainy and snowy weather and high humidity environments. Waterproof packaging paper bags can protect products from water damage and reduce losses caused by moisture. In addition, a large number of commodities need to be transported through logistics, from clothing, books to food and electronic products. They all require appropriate packaging. Waterproof packaging paper bags provide reliable protection for some of these humidity-sensitive commodities.
[0004] At present, most manufacturers do not pay attention to the fixation of the drawstrings on the outside of the packaging bag. When loading heavy items, the drawstrings are easily detached and slip off. If the drawstrings cannot be adequately fixed, it will eventually cause damage to the items inside the packaging bag and lead to economic losses. Currently, the drawstrings are mostly fixed by gluing or tying knots, but this method has a small force area and can easily cause the packaging bag to break, causing inconvenience to users. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a waterproof packaging paper bag, which aims to improve the problem in the prior art that when heavy items are loaded, the internal items are damaged due to incomplete fixation of the drawstring.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a waterproof packaging paper bag, comprising a packaging bag, the inner side of the packaging bag is slidably connected to a hollow box, the top of the hollow box is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a nylon rope, the top of the nylon rope is fixedly connected to a fixing knot, the inner side of the packaging bag is fixedly connected to a second clamping ring, the inner side of the second clamping ring is slidably connected to a first ribbon rope, the end point of the first ribbon rope is fixedly connected to a knot, and a waterproof mechanism is provided on the outer side of the packaging bag, and the waterproof mechanism is used for waterproofing.
[0007] As a further description of the above technical solution:
[0008] The waterproof mechanism includes a waterproof film, the front and rear sides of the packaging bag are fixedly connected to the outer side of the waterproof film, the left and right sides of the packaging bag are provided with folding surfaces, the top left side of the packaging bag is slidably connected to a drawstring 1, the top right side of the packaging bag is slidably connected to a drawstring 2, the top of the drawstring 1 is fixedly connected to a block, and the top of the front side of the packaging bag is fixedly connected to a clamp ring 1.
[0009] As a further description of the above technical solution:
[0010] The outer side of the fixing knot is fixedly connected to the inner side of the packaging bag, and the outer side of the fixing plate is slidably connected to the inner side of the packaging bag.
[0011] As a further description of the above technical solution:
[0012] The inner side of the clamp ring 1 is fixedly connected to the outer side of the pull rope 1, and the inner side of the folding surface is slidably connected to the outer side of the pull rope 1.
[0013] As a further description of the above technical solution:
[0014] The top end of the front side of the packaging bag is fixedly connected with a decorative strip, and the bottom end of the front side of the packaging bag is fixedly connected with a label.
[0015] As a further description of the above technical solution:
[0016] The rear side of the packaging bag is fixedly connected with a clamping ring three, and the inner side of the clamping ring three is slidably connected with a ribbon rope two.
[0017] As a further description of the above technical solution:
[0018] A water absorbing plate is fixedly connected to the inner side of the hollow box, and a hole of 1 to 5 cm is provided on the top of the front side of the packaging bag.
[0019] As a further description of the above technical solution:
[0020] The inner side of the folding surface is slidably connected to the outer side of the second drawstring, and the inner side of the folding surface is provided with a hole of 1 to 5 cm.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the present invention, when items are loaded, their weight will squeeze the hollow box, causing the hollow box and the fixed plate to drop together, pulling the nylon rope to tighten, and one end of the nylon rope is fixed, so that the ribbon rope 1 will be tightly bound inside. The more items there are, the greater the pulling force and the tighter the binding, thereby achieving the fixation of the ribbon rope 1 and preventing the packaging bag from falling off the ribbon rope 1 due to unstable fixation and the excessive weight of the items in the packaging bag.
[0023] 2. In the present invention, on rainy days, the drawstrings 1 and 2 are pulled to tighten and bind the upper end of the packaging bag along the fold to prevent it from opening. The waterproof film on the surface of the packaging bag can prevent rainwater from penetrating. When the drawstring 1 is loosened, the knot ensures that the drawstring will not fall off, thereby maintaining the waterproof effect, preventing the packaging bag from breaking due to moisture, and ensuring that the contents are not scattered. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a three-dimensional view of the folded front side of a waterproof packaging paper bag proposed by the utility model;
[0025] Figure 2 This is a disassembled diagram of the local structure of the waterproof membrane of a waterproof packaging paper bag proposed in the utility model;
[0026] Figure 3 This is a partial structural diagram of a waterproof packaging paper bag proposed in the utility model;
[0027] Figure 4 This is a partial structural diagram of a ribbon rope for a waterproof packaging paper bag proposed in the present invention;
[0028] Figure 5 The present invention is a schematic diagram of the partial structure of a nylon rope for a waterproof packaging paper bag.
[0029] Legend:
[0030] 1. Packaging bag; 2. Waterproof mechanism; 201. Folding surface; 202. Drawstring 1; 203. Waterproof membrane; 204. Knot; 205. Drawstring 2; 206. Clamp 1; 3. Hollow box; 4. Fixing plate; 5. Nylon rope; 6. Clamp 2; 7. Fixing knot; 8. Ribbon rope 1; 9. Decorative strip; 10. Label; 11. Water-absorbing plate; 12. Ribbon rope 2; 13. Clamp 3; 14. Knot. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0032] Please see the attached Figure 2 , Attachment Figure 4 and attached Figure 5The utility model provides an embodiment: a waterproof packaging paper bag, including a packaging bag 1, a hollow box 3 is slidably connected to the inner side of the packaging bag 1, the top of the hollow box 3 is fixedly connected to a fixing plate 4, the top of the fixing plate 4 is fixedly connected to a nylon rope 5, the top of the nylon rope 5 is fixedly connected to a fixing knot 7, the top of the fixing plate 4 is fixedly connected to the nylon rope 5, in order to facilitate carrying and hanging, the top of the nylon rope 5 is fixedly connected to a fixing knot 7 to ensure that it will not be accidentally loosened during use, the inner side of the packaging bag 1 is fixedly connected to a second snap ring 6, the second snap ring 6 A ribbon rope 8 is slidably connected to the inside, and a knot 14 is fixedly connected to the end point of the ribbon rope 8. A waterproof mechanism 2 is provided on the outside of the packaging bag 1. The waterproof mechanism 2 is used for waterproofing. The waterproof mechanism 2 adopts advanced waterproof materials and technologies to ensure that the packaging bag 1 can keep the internal items dry in various environments. A water-absorbing plate 11 is fixedly connected to the inside of the hollow box 3. The water-absorbing plate 11 can quickly absorb moisture that may penetrate into the hollow box 3, thereby protecting the items in the packaging bag 1 from moisture. There is a hole of 1 to 5 cm on the top of the front side of the packaging bag 1.
[0033] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 3 The waterproof mechanism 2 includes a waterproof membrane 203. The front and rear sides of the packaging bag 1 are fixedly connected to the outer side of the waterproof membrane 203. The left and right sides of the packaging bag 1 are both provided with folding surfaces 201. A drawstring 202 is slidably connected to the left side of the top of the packaging bag 1. The front and rear sides of the packaging bag 1 are fixedly connected to the outer side of the waterproof membrane 203, ensuring the sealing and waterproof performance of the packaging bag 1. The folding surface 201 not only enhances the structural stability of the packaging bag 1, but also facilitates the adjustment of the capacity according to needs during use. A drawstring 202 is slidably connected to the left side of the top of the packaging bag 1 so that the user can easily open or close the packaging bag 1. The top right side of the packaging bag 1 is slidably connected to a drawstring 205, the top of the drawstring 1 202 is fixedly connected to a block 204, and the top of the front side of the packaging bag 1 is fixedly connected to a clamp ring 206, making the packaging bag 1 more convenient when carrying or hanging. The inner side of the folding surface 201 is slidably connected to the outer side of the drawstring 205, allowing the user to flexibly adjust the position of the folding 201 according to the actual size of the loaded items to achieve the best use effect. The top front side of the packaging bag 1 is fixedly connected to a clamp ring 206, the inner side of the folding surface 201 is slidably connected to the outer side of the drawstring 205, and there are holes of 1 to 5 cm on the inner side of the folding surface 201.
[0034] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 3The outer side of the fixing knot 7 is fixedly connected to the inner side of the packaging bag 1, the outer side of the fixing plate 4 is slidingly connected to the inner side of the packaging bag 1, and the top end of the front side of the packaging bag 1 is fixedly connected to a decorative strip 9. The top end of the front side of the packaging bag 1 is fixedly connected to a decorative strip 9, which not only beautifies the overall appearance of the packaging bag 1, but also enhances the grade of the product. The bottom end of the front side of the packaging bag 1 is fixedly connected to a label 10. The label 10 provides consumers with necessary information reference. The label 10 ensures that it is not easy to fall off during transportation and use, thereby ensuring the complete transmission of information.
[0035] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 3 The inner side of the clasp 206 is fixedly connected to the outer side of the drawstring 202, ensuring the stability and reliability between the two, so that the clasp 206 and the drawstring 202 can withstand a certain tension without loosening during use, thereby ensuring the stability of the overall structure. The inner side of the folding surface 201 is slidingly connected to the outer side of the drawstring 202, and the rear side of the packaging bag 1 is fixedly connected to the clasp three 13, which not only enhances the durability of the packaging bag 1, but also provides the user with an additional carrying method. The inner side of the clasp three 13 is slidingly connected to the ribbon rope 2 12, so that the user can adjust the length of the ribbon rope 2 12 as needed, thereby achieving a more personalized and comfortable carrying experience.
[0036] Working principle: When items are put into the packaging bag 1, the gravity of the items will squeeze the hollow box 3 below and make the hollow box 3 move downward. The downward movement of the hollow box 3 will drive the fixing plate 4 to move downward together. The fixing plate 4 will pull the nylon rope 5 and tighten the nylon rope 5. Since one end of the nylon rope 5 is fixed by the fixing knot 7, the nylon rope 5 will tightly bind the ribbon rope 8 inside it. The more items are put into the packaging bag 1, the greater the pulling force is, and the tighter the bundle is, thus fixing the ribbon rope 8 and preventing the packaging bag 1 from falling off the ribbon rope 8 due to unstable fixation and the excessive weight of the items in the packaging bag 1.
[0037] When it rains, the drawstring 1 202 and the drawstring 2 205 are pulled. During the pulling process, the upper end of the packaging bag 1 will be tightened along the crease on the folding surface 201. The drawstring 1 202 and the drawstring 2 205 are then tied together, so that the upper end of the packaging bag 1 will not be opened again. The surface of the packaging bag 1 is covered with a waterproof film 203, so it will not be wetted by rain. After loosening the drawstring 1 202, the drawstring 1 202 will not be separated from the interior of the packaging bag 1 and lost due to the action of the agglomerate 204, thereby realizing the waterproof function, preventing the surface of the packaging bag 1 from being wetted by weather or external factors, causing the packaging bag 1 to break and eventually the objects inside to scatter.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A waterproof packaging paper bag, comprising a packaging bag (1), characterized in that: The inner side of the packaging bag (1) is slidably connected to a hollow box (3), the top end of the hollow box (3) is fixedly connected to a fixing plate (4), the top end of the fixing plate (4) is fixedly connected to a nylon rope (5), the top end of the nylon rope (5) is fixedly connected to a fixing knot (7), the inner side of the packaging bag (1) is fixedly connected to a second clamping ring (6), the inner side of the second clamping ring (6) is slidably connected to a first ribbon rope (8), the end point of the first ribbon rope (8) is fixedly connected to a knot (14), and the outer side of the packaging bag (1) is provided with a waterproof mechanism (2), and the waterproof mechanism (2) is used for waterproofing.
2. The waterproof packaging paper bag according to claim 1, characterized in that: The waterproof mechanism (2) includes a waterproof membrane (203), the front and rear sides of the packaging bag (1) are fixedly connected to the outer side of the waterproof membrane (203), the left and right sides of the packaging bag (1) are both provided with folding surfaces (201), the top left side of the packaging bag (1) is slidably connected to a drawstring 1 (202), the top right side of the packaging bag (1) is slidably connected to a drawstring 2 (205), the top of the drawstring 1 (202) is fixedly connected to a block (204), and the top of the front side of the packaging bag (1) is fixedly connected to a clamp ring 1 (206).
3. The waterproof packaging paper bag according to claim 1, characterized in that: The outer side of the fixing knot (7) is fixedly connected to the inner side of the packaging bag (1), and the outer side of the fixing plate (4) is slidably connected to the inner side of the packaging bag (1).
4. The waterproof packaging paper bag according to claim 2, characterized in that: The inner side of the clamping ring (206) is fixedly connected to the outer side of the pull rope (202), and the inner side of the folding surface (201) is slidably connected to the outer side of the pull rope (202).
5. The waterproof packaging paper bag according to claim 1, characterized in that: The top end of the front side of the packaging bag (1) is fixedly connected to a decorative strip (9), and the bottom end of the front side of the packaging bag (1) is fixedly connected to a label (10).
6. The waterproof packaging paper bag according to claim 1, characterized in that: The rear side of the packaging bag (1) is fixedly connected to a third clamping ring (13), and the inner side of the third clamping ring (13) is slidably connected to a second ribbon rope (12).
7. The waterproof packaging paper bag according to claim 1, characterized in that: A water absorbing plate (11) is fixedly connected to the inner side of the hollow box (3), and a hole of 1 to 5 cm is provided at the top end of the front side of the packaging bag (1).
8. The waterproof packaging paper bag according to claim 2, characterized in that: The inner side of the folding surface (201) is slidably connected to the outer side of the second drawstring (205), and the inner side of the folding surface (201) has a hole of 1 to 5 cm.