Expandable plastic packaging bag

Abstract

The utility model discloses an extensible plastic packaging bag, which relates to the technical field of XX and comprises a packaging bag main body, an outer cover bag body is arranged at the front end of the packaging bag main body, a first magnetic button is fixedly mounted on the surface of the outer cover bag body, and a second magnetic button is fixedly mounted on the surface of the outer cover bag body. A second magnetic button is fixedly installed at the position, close to the first magnetic button, of the front surface of the packaging bag body, two lifting belts are fixedly installed at the top end of the packaging bag body, and sponge holding bodies are fixedly installed in the centers of the two lifting belts correspondingly. The packing bag has the advantages that the packing bag can easily adapt to articles with different sizes and shapes through the adjustability of the separation belt I, packing bags with different sizes do not need to be prepared for each article, so that the loading efficiency is improved, the internal space of the packing bag can be utilized to the maximum extent by adjusting the position of the separation belt I, and the packing bag is convenient to use. And space waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of expandability, in particular to an expandable plastic packaging bag. Background Art

[0002] Traditional plastic packaging bags, such as those made of polyethylene and polypropylene, are widely used in daily life and industrial production, but they often lack the ability to adjust the size of the packaging, making them inconvenient to use. To address this problem, expandable plastic packaging bags have emerged. The design concept of expandable plastic packaging bags focuses on achieving space adjustment through a specific structure. The packaging bag design incorporates an innovative retractable structure. Through flexible side or bottom expansion design, the packaging bag can easily accommodate items of different sizes while maintaining its original shape. This design also ensures the stability and load-bearing capacity of the packaging bag after expansion, ensuring the safe transportation of items.

[0003] With the green trend of plastic packaging processing technology, this expandable plastic packaging bag also focuses on environmental protection and energy conservation during the manufacturing process. For example, it adopts plastic stabilization technology and biodegradable technology to reduce harm to the environment and humans and increase the reuse or recycling value of the product. In terms of production process, this packaging bag also adopts advanced gravure printing and composite flexible packaging technology to ensure the quality of printed products and packaging performance. Through strict quality control, including pre-warehousing inspection of raw materials and online product inspection, it is ensured that each packaging bag meets quality standards.

[0004] After searching, the applicant found that a Chinese patent disclosed "a multi-layer isolatable plastic packaging bag", and its publication (announcement) number is "CN216187428U". This patent mainly installs a thickened corrosion-resistant layer on the upper end of the plastic packaging bag, and a separation device is installed on the upper end of the thickened corrosion-resistant layer. Two extraction devices are installed on the left and right ends of the plastic packaging bag, and a protective device is fixed on the left and right ends of the plastic packaging bag. However, the size of the internal space of the packaging bag cannot be adjusted according to the size of different objects, resulting in a situation where although there are multiple pockets, it is not suitable for the size of objects. For this reason, we propose an expandable plastic packaging bag. Utility Model Content

[0005] The purpose of the utility model is to provide an expandable plastic packaging bag.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an expandable plastic packaging bag, comprising a packaging bag main body, an outer cover bag body being provided at the front end of the packaging bag main body, a magnetic button 1 being fixedly installed on the surface of the outer cover bag body, a magnetic button 2 being fixedly installed on the front surface of the packaging bag main body close to the magnetic button 1, two lifting straps being fixedly installed on the top of the packaging bag main body, a sponge grip being fixedly installed at the center position of the two lifting straps, a dividing strip 1 and a dividing strip 2 being sequentially provided inside the packaging bag main body, a bonding strap being adhered to one side of the dividing strip 2, hard plastic plates being fixedly installed on both sides of the interior of the packaging bag main body, a plurality of plastic buttons 1 being fixedly installed on the surface of the hard plastic plate, a hole being provided on one side of the dividing strip 1, and the plastic button 1 passing through the hole is threadedly connected to the plastic button 2.

[0007] As a further solution of the present invention: a protective component is fixedly installed on the inner bottom of the packaging bag body, and the protective component includes a protective film layer, a rubber barrier layer is provided on one side of the protective film layer, and a plastic barrier layer is provided on the side of the rubber barrier layer away from the protective film layer.

[0008] As a further solution of the present invention: the other end of the fitting bond is fixedly connected to the inner wall of the packaging bag body, and the second dividing strip and the fitting portion of the fitting bond are both provided with adhesive strips.

[0009] As a further solution of the present invention: the number of the plastic buttons 1 is six, and the six plastic buttons 1 are evenly arrayed at the upper and lower ends of the plastic button 1.

[0010] As a further solution of the present invention: the fitting parts of the magnetic button one and the magnetic button two are concave-convex shapes, the interior of the magnetic button one has a concave body, and the surface of the magnetic button two has a convex body.

[0011] As a further solution of the present invention: a thread is provided on the outer surface of the first plastic button, a thread groove is provided inside the second plastic button, and the thread groove of the second plastic button is engaged with the first plastic button.

[0012] As a further solution of the present invention: two U-shaped support strips are fixedly installed on both sides of the interior of the packaging bag body away from the hard plastic plate, and grooves are opened at both ends of the U-shaped support strip, and long columns are inserted into the grooves. Two springs are sleeved on the outer surface of the long columns, and one end of the spring is fixedly connected to one end of the U-shaped support strip, and the other end of the spring is fixedly connected to the support plate, and the support plate is fixedly connected to the long column.

[0013] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model enables packaging bags to easily adapt to items of different sizes and shapes through the adjustability of the dividing strip 1. There is no need to prepare packaging bags of different sizes for each item, thereby improving loading efficiency. By adjusting the position of the dividing strip 1, the internal space of the packaging bag can be maximized, reducing space waste, making the loading of items more compact and orderly. When multiple items are loaded at the same time, the dividing strip 1 can separate them to prevent friction or collision between the items, thereby protecting the integrity and safety of the items. The adjustment process of the dividing strip 1 is simple and convenient, and the loading process is more convenient and efficient.

[0015] 2. The utility model uses U-shaped support bars and long columns to form an internal skeleton, which can provide a stable support effect for it, effectively resist external pressure, prevent the packaging bag from being deformed due to excessive force, improve loading efficiency, and reduce space waste. The spring has good elasticity and recovery. When the packaging bag is squeezed, the spring can ensure that the packaging bag can maintain a stable shape and size when loading different items, deform and absorb part of the pressure, and protect the packaging bag and the internal items from damage.

[0016] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic front view of the structure in the embodiment of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the structure in an embodiment of the present utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the structure of A in the middle;

[0020] Figure 4 Schematic diagram of the protection component in the embodiment of the present utility model.

[0021] In the picture:

[0022] 11. Packaging bag body; 12. Outer bag cover; 13. Magnetic button 1; 14. Magnetic button 2; 15. Lifting strap; 16. Sponge grip; 17. Protective film layer; 18. Rubber interlayer; 19. Plastic interlayer;

[0023] 20. Protective assembly; 21. Divider strip 1; 22. Divider strip 2; 23. Fitting tape; 24. Hard plastic plate; 25. Plastic button 1; 26. Plastic button 2;

[0024] 31. U-shaped support bar; 32. trough body; 33. long column; 34. spring; 35. support plate. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0026] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Please see the attached Figure 1 -Attached Figure 4 The present invention is an expandable plastic packaging bag, comprising a packaging bag main body 11, an outer cover bag body 12 being provided at the front end of the packaging bag main body 11, a magnetic button 13 being fixedly installed on the surface of the outer cover bag body 12, a magnetic button 2 being fixedly installed on the front surface of the packaging bag main body 11 close to the magnetic button 13, two pulling straps 15 being fixedly installed on the top of the packaging bag main body 11, a sponge grip 16 being fixedly installed at the center position of the two pulling straps 15, a separating strip 1 21 and a separating strip 2 22 being sequentially provided inside the packaging bag main body 11, a bonding bond 23 being adhered to one side of the separating strip 2 22, hard plastic plates 24 being fixedly installed on both sides of the interior of the packaging bag main body 11, a plurality of plastic buttons 1 25 being fixedly installed on the surface of the hard plastic plate 24, a hole being provided on one side of the separating strip 1 21, the plastic button 1 25 passing through the hole and being threadedly connected to the plastic button 2 26.

[0028] When placing larger items, unscrew the second plastic button 26 counterclockwise, adjust the position of the first plastic button 25 in the hole of the second dividing strip 22, and twist the second plastic button 26 clockwise to lock the first plastic button 25 and the second plastic button 26, thereby dividing a larger space for use.

[0029] The adjustability of the dividing strip 21 allows the packaging bag to easily adapt to items of different sizes and shapes, without the need to prepare packaging bags of different sizes for each item. By adjusting the position of the dividing strip 21, the internal space of the packaging bag can be maximized, reducing space waste and making the loading of items more compact and orderly.

[0030] A protective component 20 is fixedly installed on the inner bottom of the packaging bag body 11. The protective component 20 includes a protective film layer 17. A rubber barrier layer 18 is provided on one side of the protective film layer 17. A plastic barrier layer 19 is provided on the side of the rubber barrier layer 18 away from the protective film layer 17.

[0031] By providing a multi-layer structure of the protection component 20, the bottom of the packaging bag body 11 can be well protected, and on the other hand, the articles can be better protected.

[0032] The other end of the bonding tie 23 is fixedly connected to the inner wall of the packaging bag body 11 , and adhesive strips are provided at the bonding locations of the second separating strip 22 and the bonding tie 23 .

[0033] The second dividing strip 22 is fixed by providing an adhesive strip between the second dividing strip 22 and the fitting tie 23, so that the articles therebetween will not slide or move.

[0034] The number of the plastic buttons 25 is six, and the six plastic buttons 25 are evenly arrayed at the upper and lower ends of the plastic button 25.

[0035] By providing six plastic buttons 25 , the adjustment range of the dividing strip 21 can be increased, thereby allowing the packaging bag body 11 to have a larger adjustment range.

[0036] The fitting parts of the magnetic button 13 and the magnetic button 2 14 are concave and convex. The interior of the magnetic button 13 has a concave part, and the surface of the magnetic button 2 14 has a convex part.

[0037] The outer surface of the plastic button 1 25 is provided with a thread, and the interior of the plastic button 2 26 is provided with a thread groove, and the thread groove of the plastic button 2 26 is fitted with the plastic button 1 25 .

[0038] By providing a thread structure, the engagement between the second plastic button 26 and the first plastic button 25 can be enhanced, thereby achieving a better fixing effect.

[0039] Two U-shaped support bars 31 are fixedly installed on both sides of the interior of the packaging bag body 11 away from the hard plastic plate 24. A groove 32 is opened at both ends of the U-shaped support bar 31, and a long column 33 is inserted into the groove 32. Two springs 34 are sleeved on the outer surface of the long column 33. One end of the spring 34 is fixedly connected to one end of the U-shaped support bar 31, and the other end of the spring 34 is fixedly connected to the support plate 35, and the support plate 35 is fixedly connected to the long column 33.

[0040] The internal skeleton formed by the U-shaped support bar 31 and the long column 33 can provide a stable support effect, effectively resist external pressure, prevent the packaging bag from being deformed due to excessive force, and improve loading efficiency.

[0041] Working principle:

[0042] First, pull the outer cover bag body 12 outward with force to separate the magnetic button 13 from the magnetic button 2 14, open the outer cover bag body 12, and adjust the position of the dividing strip 1 21 inside the packaging bag body 11. When placing items that need to be fixed, separate the bonding bond 23 from the dividing strip 2 22, and put the items into the space between the dividing strip 2 22 and the packaging bag body 11. The adhesive strip between the dividing strip 22 and the bonding bond 23 fixes the dividing strip 22. When placing larger items, twist off the plastic button 2 2 counterclockwise. 6. Adjust the position of plastic button 1 25 in the hole of dividing strip 2 22, twist plastic button 2 26 clockwise to lock plastic button 1 25 and plastic button 2 26, thereby dividing a larger space for use. The U-shaped support strips 31 on both sides of the packaging bag body 11 can well support the shape of the packaging bag body 11. When the packaging bag body 11 is squeezed and deformed, the spring 34 acts on the U-shaped support strip 31 and the support plate 35 to make the packaging bag body 11 rebound and restore its original shape. At this point, the entire workflow is completed.

[0043] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0046] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. An expandable plastic packaging bag, comprising a packaging bag body (11), characterized in that: The front end of the packaging bag body (11) is provided with an outer cover bag body (12), and a magnetic button 1 (13) is fixedly installed on the surface of the outer cover bag body (12). A magnetic button 2 (14) is fixedly installed at a position close to the front surface of the packaging bag body (11) and the magnetic button 1 (13). Two lifting straps (15) are fixedly installed at the top of the packaging bag body (11), and a sponge grip (16) is fixedly installed at the center position of the two lifting straps (15). A dividing strip 1 (21) and a dividing strip 2 (22) are sequentially arranged inside the body (11), a bonding tie (23) is attached to one side of the dividing strip 2 (22), hard plastic plates (24) are fixedly installed on both sides of the inside of the packaging bag body (11), a plurality of plastic buttons 1 (25) are fixedly installed on the surface of the hard plastic plate (24), a hole is opened on one side of the dividing strip 1 (21), and the plastic button 1 (25) passes through the hole and is threadedly connected to the plastic button 2 (26).

2. The expandable plastic packaging bag according to claim 1, characterized in that: A protective component (20) is fixedly mounted on the inner bottom of the packaging bag body (11), and the protective component (20) includes a protective film layer (17), a rubber barrier layer (18) is provided on one side of the protective film layer (17), and a plastic barrier layer (19) is provided on the side of the rubber barrier layer (18) away from the protective film layer (17).

3. The expandable plastic packaging bag according to claim 1, characterized in that: The other end of the bonding tie (23) is fixedly connected to the inner wall of the packaging bag body (11), and the bonding parts of the second dividing strip (22) and the bonding tie (23) are both provided with adhesive strips.

4. The expandable plastic packaging bag according to claim 1, characterized in that: The number of the plastic buttons (25) is six, and the six plastic buttons (25) are evenly arrayed at the upper and lower ends of the plastic button (25).

5. The expandable plastic packaging bag according to claim 1, characterized in that: The fitting parts of the magnetic button 1 (13) and the magnetic button 2 (14) are concave-convex shapes, the interior of the magnetic button 1 (13) has a concave body, and the surface of the magnetic button 2 (14) has a convex body.

6. The expandable plastic packaging bag according to claim 1, characterized in that: The outer surface of the plastic button 1 (25) is provided with a thread, the interior of the plastic button 2 (26) is provided with a thread groove, and the thread groove of the plastic button 2 (26) is engaged with the plastic button 1 (25).

7. The expandable plastic packaging bag according to claim 1, characterized in that: Two U-shaped support bars (31) are fixedly installed on both sides of the interior of the packaging bag body (11) away from the hard plastic plate (24), and grooves (32) are provided at both ends of the U-shaped support bar (31). A long column (33) is inserted into the groove (32), and two springs (34) are sleeved on the outer surface of the long column (33), one end of each spring (34) is fixedly connected to one end of the U-shaped support bar (31), and the other end of the spring (34) is fixedly connected to the support plate (35), and the support plate (35) is fixedly connected to the long column (33).

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