High-strength plastic packaging bag
By introducing a sealing cap, inner mounting components, and rubber sleeve into the plastic packaging bag, the stability and reusability issues of existing plastic packaging bags are solved, achieving a multi-layer structure and positioning function, thus improving the effectiveness of the packaging bag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
Existing plastic packaging bags have problems with bottom weighing, causing items to wobble and the opening to easily deform. They also have limited functionality and are difficult to reuse.
A high-strength plastic packaging bag was designed, employing a combination structure of a sealing cap and an inner mounting component, including a cylindrical structure and a rubber sleeve to support the bag's shape and prevent wobbling. Combined with a sealing sticker and a handle design, it achieves a multi-layer structure and positioning function.
It enables the reuse of packaging bags, prevents the opening from bending, positions the contents, avoids shaking, enhances the stability of the bottom structure, and meets the needs of multi-layer packaging.
Smart Images

Figure CN224045902U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food packaging field, mainly relates to high strength plastic packaging bag. BACKGROUND
[0002] With the development of society, the function of the packaging bag is no longer limited to the traditional packaging function, which also reflects the quality level of the merchant, and many packaging bags will have design, which is unique and not a traditional product discarded at will after tearing off the packaging. The existing plastic packaging bag has the following problems, the plastic bag of hard material has problems in the bottom weighing, secondly, the position of the internal loaded article will shake, the function is single in the later secondary use, the mouth is easy to deform, although the Chinese patent CN208217370U discloses a portable food packaging bag, but the packaging bag cannot solve the above problems. CONTENT OF UTILITY MODEL
[0003] The utility model provides high strength plastic packaging bag for the shortcoming among the prior art.
[0004] High strength plastic packaging bag, including the bag body and the bottom cover of the bottom fixed connection of cylindrical bag body, install the sealing cover at the bag mouth, the sealing cover is installed at the bag mouth, the edge of the bag mouth still is provided with sealing sticker, and the sticker is sealed in the bag mouth and is sealed;Sealing cover is provided with first installation component, the inner side wall of bag body is provided with second installation component, and the sealing cover is installed with bag body after the cooperation of second installation component and first installation component, the bottom cover includes bottom plate and annular fence, and the fence is bonded and fixed with the circumferential outer wall of bag body, the inner side of the fence is installed with second installation component, and second installation component passes through bag body and extends in bag body.
[0005] As preferred, the second installation component is a cylindrical structure, and the outer side of the cylindrical structure is provided with a bayonet. The first installation component includes an assembly ring, and the assembly ring is clamped in the bayonet.
[0006] As preferred, the first installation component includes a support plate at the bottom and an assembly ring in the circumferential direction of the support plate. The assembly ring is provided with a notch at the position of the cylindrical structure, and a clamping strip is arranged in the notch. The clamping strip is located above the bayonet. When fixed, the assembly ring is attached to the inner wall of the bag body, and the clamping strip is clamped in the bayonet.
[0007] As preferred, the length of the cylindrical structure protruding from the bag body is 3mm to 5mm, and a rubber sleeve is sleeved on the end of the cylindrical structure.
[0008] As preferred, the first installation component is arranged at the bottom, middle and mouth of the bag body.
[0009] As preferred, the upper end of the bag body is provided with a handle, and the handle is arranged in a cross shape.
[0010] Compared with the prior art, the packaging bag can not only meet the original packaging function, but also can be repeatedly used, the mouth is not bent, a multi-layer structure or a reinforced structure at the bottom can be formed, the protrusion at the inner side can also play a positioning function, and the articles in the bag body are prevented from shaking. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic view of the overall structure of the packaging bag.
[0012] Figure 2 It is a sectional view of the packaging bag, and the sealing cover is located at the bottom.
[0013] Figure 3 It is a schematic view of cooperation of the sealing cover and the second mounting assembly.
[0014] The technical names of the reference signs in the figure are as follows: 1, bag body; 2, bottom cover; 3, sealing cover; 4, first mounting assembly; 5, second mounting assembly; 6, bottom plate; 7, surrounding plate; 8, cylindrical structure; 9, bayonet; 10, assembly ring; 11, notch; 12, clamping strip; and 13, handle. DETAILED DESCRIPTION
[0015] The utility model will be described in further detail in combination with the drawings and the embodiments.
[0016] Embodiment 1
[0017] The high-strength plastic packaging bag comprises a cylindrical bag body 1 and a bottom cover 2 fixedly connected at the bottom of the bag body 1, a sealing cover 3 is installed at the bag opening, the sealing cover 3 is installed at the bag opening, and a sealing sticker is further arranged at the edge of the bag opening and is bonded to the bag opening for sealing; the sealing cover 3 is provided with a first mounting assembly 4, the inner side wall of the bag body 1 is provided with a second mounting assembly 5, the sealing cover 3 and the bag body 1 are completed after the second mounting assembly 5 and the first mounting assembly 4 cooperate with each other, the bottom cover 2 comprises a bottom plate 6 and a ring-shaped surrounding plate 7, the surrounding plate 7 is bonded and fixed to the circumferential outer wall of the bag body 1, the second mounting assembly 5 is installed at the inner side of the surrounding plate 7, and the second mounting assembly 5 extends into the bag body 1 through the bag body 1. The first mounting assembly and the second mounting assembly are assembled as an assembly structure, do not need to be bonded or other structures, and only need to be assembled by using buckles.
[0018] The second mounting assembly 5 is a cylindrical structure 8, the outer side of the cylindrical structure 8 is provided with a bayonet 9, the first mounting assembly 4 comprises an assembly ring 10, and the assembly ring 10 is clamped in the bayonet 9. The purpose of the assembly ring 10 is to support the bag body 1 from being deformed and keep the overall shape of the bag body 1.
[0019] The first mounting assembly 4 includes a bottom support plate and an assembly ring 10 in the circumferential direction of the support plate, the assembly ring 10 is provided with a notch 11 at the position of the cylindrical structure 8, the notch 11 is provided with a clamping strip 12, the clamping strip 12 is located above the clamping opening 9, and when fixed, the assembly ring 10 is attached to the inner wall of the bag body 1, and the clamping strip 12 is clamped into the clamping opening 9.
[0020] The cylindrical structure 8 protrudes from the bag body 1 by 3-5 mm, and a rubber sleeve is provided on the end of the cylinder. The purpose of the rubber sleeve is to position the product in the bag body 1 and prevent it from shaking, and the rubber sleeve will not damage the internal items. The first mounting assembly is arranged at the bottom, middle and mouth of the bag body 1. The upper end of the bag body 1 is provided with a handle 13 arranged in a cross shape. The packaging bag not only meets the original packaging function, but also can be reused, avoids bending of the mouth, can form a multi-layer structure or a reinforced structure at the bottom, and the inner protrusion can also play a positioning function to prevent the items in the bag body 1 from shaking.
[0021] Embodiment 2
[0022] The high-strength plastic packaging bag comprises a cylindrical bag body 1 and a bottom cover 2 fixedly connected to the bottom of the bag body 1, and a sealing cover 3 mounted at the bag opening. The sealing cover 3 is mounted at the bag opening, and a sealing sticker is further arranged at the edge of the bag opening. The sticker is adhered to the bag opening for sealing. The sealing cover 3 is provided with a first mounting assembly 4, and the inner side wall of the bag body 1 is provided with a second mounting assembly 5. After the second mounting assembly 5 and the first mounting assembly 4 cooperate with each other, the sealing cover 3 and the bag body 1 are installed. The bottom cover 2 comprises a bottom plate 6 and a ring-shaped surrounding plate 7, the surrounding plate 7 is adhered and fixed to the circumferential outer wall of the bag body 1, the inner side of the surrounding plate 7 is provided with the second mounting assembly 5, and the second mounting assembly 5 extends into the bag body 1 through the bag body 1. The first mounting assembly and the second mounting assembly are assembled as an assembly structure, which does not need to be adhered or other structures, but only needs to be installed by using buckles.
[0023] The second mounting assembly 5 is a cylindrical structure 8, and the outer side of the cylindrical structure 8 is provided with a clamping opening 9. The first mounting assembly 4 comprises an assembly ring 10 clamped in the clamping opening 9. The purpose of the assembly ring 10 is to support the bag body 1 without deformation and maintain the overall shape of the bag body 1.
[0024] The first mounting assembly 4 includes a bottom support plate and an assembly ring 10 in the circumferential direction of the support plate, the assembly ring 10 is provided with a notch 11 at the position of the cylindrical structure 8, the notch 11 is provided with a clamping strip 12, the clamping strip 12 is located above the clamping opening 9, and when fixed, the assembly ring 10 is attached to the inner wall of the bag body 1, and the clamping strip 12 is clamped into the clamping opening 9.
[0025] The cylindrical structure 8 protrudes from the bag body 1 by 3-5 mm, and the end of the cylinder is provided with a rubber sleeve. The purpose of the rubber sleeve is to position the product in the bag body 1 and prevent it from shaking, and the rubber sleeve will not damage the internal items. The first mounting assembly is arranged at the bottom, middle and mouth of the bag body 1. The upper end of the bag body 1 is provided with a handle 13 arranged in a cross shape. The packaging bag not only meets the original packaging function, but also can be reused, avoids bending of the mouth, can form a multi-layer structure or a reinforced structure at the bottom, and the internal protrusions can also play a positioning function to prevent the items in the bag body 1 from shaking. The bag body 1 is in the form of a cylindrical box structure as a whole.
[0026] Embodiment 3
[0027] The high-strength plastic packaging bag comprises a cylindrical bag body 1 and a bottom cover 2 fixedly connected to the bottom of the bag body 1, and a sealing cover 3 arranged at the bag opening. The sealing cover 3 is arranged at the bag opening, and the edge of the bag opening is further provided with a sealing sticker. The sticker is bonded to the bag opening for sealing. The sealing cover 3 is provided with a first mounting assembly 4, and the inner side wall of the bag body 1 is provided with a second mounting assembly 5. After the second mounting assembly 5 and the first mounting assembly 4 cooperate, the sealing cover 3 and the bag body 1 are installed. The bottom cover 2 comprises a bottom plate 6 and a ring-shaped surrounding plate 7. The surrounding plate 7 is bonded and fixed to the circumferential outer wall of the bag body 1. The inner side of the surrounding plate 7 is provided with the second mounting assembly 5, and the second mounting assembly 5 extends into the bag body 1 through the bag body 1. The first mounting assembly and the second mounting assembly are assembled as an assembly structure, which does not need to be bonded or other structures, but only needs to be buckled to complete the installation.
[0028] The second mounting assembly 5 is a cylindrical structure 8, and the outer side of the cylindrical structure 8 is provided with a bayonet 9. The first mounting assembly 4 comprises an assembly ring 10 which is clamped in the bayonet 9. The purpose of the assembly ring 10 is to support the bag body 1 without deformation and maintain the overall shape of the bag body 1.
[0029] The first mounting assembly 4 comprises a support plate at the bottom and an assembly ring 10 in the circumferential direction of the support plate. The assembly ring 10 is provided with a notch 11 at the position of the cylindrical structure 8, and the notch 11 is provided with a clamping strip 12. The clamping strip 12 is located above the bayonet 9. When fixed, the assembly ring 10 is attached to the inner wall of the bag body 1, and the clamping strip 12 is clamped into the bayonet 9.
[0030] The cylindrical structure 8 protrudes from the bag body 1 by 3-5 mm, and the end of the cylinder is provided with a rubber sleeve. The purpose of the rubber sleeve is to position the product in the bag body 1 and prevent it from shaking, and the rubber sleeve will not damage the internal articles. The first mounting assembly is arranged at the bottom, middle and mouth of the bag body 1. The upper end of the bag body 1 is provided with a handle 13 arranged in a cross shape. The packaging bag not only meets the original packaging function, but also can be reused, avoids the bending of the mouth, and can form a multi-layer structure or a reinforced structure at the bottom, and the protrusions on the inside can also play a positioning function to avoid the shaking of the articles in the bag body 1. The bag mouth is provided with a thickened layer.
Claims
1. A high strength plastic packaging bag characterized by: The utility model provides a bag, which comprises a cylindrical bag body (1), a bottom cover (2) fixedly connected to the bottom of the bag body (1), a sealing cover (3) installed at the bag opening, a sealing sticker arranged at the edge of the bag opening, and a first mounting assembly (4) arranged on the sealing cover (3). The inner side wall of the bag body (1) is provided with a second mounting assembly (5). The second mounting assembly (5) and the first mounting assembly (4) are matched with each other, and the sealing cover (3) and the bag body (1) are installed. The bottom cover (2) comprises a bottom plate (6) and a ring-shaped surrounding plate (7). The surrounding plate (7) is fixedly connected to the circumferential outer wall of the bag body (1). The second mounting assembly (5) is arranged on the inner side of the surrounding plate (7) and extends into the bag body (1).
2. The high-strength plastic packaging bag of claim 1, wherein: The second mounting assembly (5) is a cylindrical structure (8). The outer side of the cylindrical structure (8) is provided with a bayonet (9). The first mounting assembly (4) comprises an assembly ring (10) which is arranged in the bayonet (9).
3. The high-strength plastic packaging bag of claim 1, wherein: The first mounting assembly (4) comprises a support plate at the bottom and an assembly ring (10) arranged in the circumferential direction of the support plate. The assembly ring (10) is provided with a notch (11) at the position of the cylindrical structure (8). The notch (11) is provided with a clamping strip (12). The clamping strip (12) is arranged above the bayonet (9). When fixed, the assembly ring (10) is attached to the inner wall of the bag body (1), and the clamping strip (12) is clamped into the bayonet (9).
4. The high-strength plastic packaging bag of claim 1, wherein: The cylindrical structure (8) protrudes from the bag body (1) by 3mm-5mm. A rubber sleeve is arranged on the end of the cylinder.
5. The high-strength plastic packaging bag of claim 2, wherein: The first mounting assembly is arranged at the bottom, middle and opening of the bag body (1).
6. The high-strength plastic packaging bag of claim 1, wherein: The upper end of the bag body (1) is provided with a handle (13) arranged in a cross shape.
Citation Information
Patent Citations
Portable food wrapping bag
CN208217370U