A packaging bag for grain sampling

Abstract

The utility model relates to the technical field of grain packaging, provide a kind of for grain sampling packaging bag, comprising: bag body, form has the accommodating space with bag mouth in one side, the accommodating space is used to accommodate grain detection sample;Sealing portion, connect in the bag body, to be used for sealing the accommodating space;Edge portion, set in the one side in the bag body, located the sealing portion close to the bag mouth side, the edge portion is equipped with detachable pasting release paper.This grain sampling packaging bag is primarily sealed to accommodating space by sealing portion, and then is sealed and isolated twice by edge portion again.Ensure the integrity and authenticity of grain detection sample in the process of transportation and storage, provide solid foundation for the accuracy of detection result.Moreover, once tearing off release paper, pasting sealing bag body, unauthorized tearing will leave obvious traces or cause structural damage.

Description

Technical Field

[0001] This utility model relates to the field of grain packaging technology, and in particular to a packaging bag for grain sampling. Background Technology

[0002] In grain sampling, especially when sampling bulk grains, traditional sample packaging often uses ordinary plastic bags or simple sealing methods. These methods have several drawbacks: First, their sealing is often poor, and samples are easily affected by external humidity, air, pollutants, and even pests during transportation and storage, leading to sample deterioration or contamination and failing to accurately reflect the quality of the entire batch of grain. Second, ordinary packaging bags lack effective anti-tampering measures; if a sample is opened without authorization after sealing, it is difficult to detect, posing a potential risk to the safety and impartiality of the sample, especially in disputed or supervisory sampling inspections, making it difficult to guarantee the "uniqueness" and "evidence" of the sample.

[0003] Therefore, there is an urgent need for a packaging bag specifically designed for grain sampling. This bag should not only provide reliable double sealing protection but also have intuitive anti-counterfeiting and anti-tampering features, and facilitate standardized operation and information recording. This will ensure that the authenticity, integrity, and traceability of grain test samples are guaranteed to the greatest extent throughout the entire process from sampling to laboratory analysis. Utility Model Content

[0004] This utility model provides a packaging bag for grain sampling, which solves the problems of poor sealing of existing packaging bags, lack of effective anti-tampering measures, and potential risks to the safety and impartiality of samples if they are opened without authorization after being sealed.

[0005] This utility model provides a packaging bag for grain sampling, comprising: The bag body has a receiving space with an opening on one side, the receiving space being used to receive grain testing samples; A sealing part is connected to the inside of the bag to seal the containing space; A sealing section is provided on one side of the bag body, located on the side of the sealing section near the bag opening, and a detachable release paper is provided on the sealing section; When the release paper is torn off, the sealing portion adheres the space between the bag opening and the sealing portion.

[0006] According to the present invention, a packaging bag for grain sampling is provided, wherein the sealing portion includes: Anti-counterfeiting adhesive strip, wherein the release paper can be detachably pasted onto the anti-counterfeiting adhesive strip.

[0007] According to the present invention, a packaging bag for grain sampling is provided, wherein an information strip is affixed to the outside of the bag body, and the information strip is provided with a writing coating.

[0008] According to the present invention, a packaging bag for grain sampling is provided, wherein the information link is located on the outside of the bag body near the bag opening.

[0009] According to the present invention, a packaging bag for grain sampling is provided, wherein a cutting line is provided on the outer side of the bag body, and the cutting line is located between the sealing part and the sealing edge part.

[0010] According to the present invention, a packaging bag for grain sampling is provided, wherein the bag body is provided with at least one vent hole, and the vent hole is connected to the containing space.

[0011] According to the present invention, a packaging bag for grain sampling is provided, wherein the sealing part is a sealing strip, comprising: A sealing strip is attached to one side of the top inside the bag opening; A sealing strip is attached to the other side of the top inside the bag opening; The sealing protrusion and the sealing recess are adapted to each other to seal the receiving space when the sealing protrusion and the sealing recess are connected.

[0012] According to the present invention, a packaging bag for grain sampling is provided, wherein the sealing part is provided with at least two sets of sealing strips, each set of sealing strips is arranged along the extension direction of the bag opening and can be opened and sealed independently.

[0013] According to the present invention, a packaging bag for grain sampling is provided, wherein the bag body is a PE bag body, and the bottom sides of the bag body are folded inward to form M-shaped pleats so that the bottom of the bag body can stand stably.

[0014] According to the present invention, a packaging bag for grain sampling is provided, wherein the bag body is provided with a minimum bagging line for grain testing samples, and the 2 kg bagging scale for the four major grains of rice, wheat, corn and soybeans that need to be sampled in the testing work is clearly defined.

[0015] This utility model provides a packaging bag for grain sampling. The bag first seals the containing space with a sealing section, and then provides a secondary seal and isolation with a sealing edge section. This ensures the integrity and authenticity of the grain test samples during transportation and storage, providing a solid foundation for the accuracy of the test results. Furthermore, once the release paper is removed from the sealing edge and the sealed bag is pasted on, unauthorized tearing will leave obvious marks or cause structural damage. This provides an effective anti-counterfeiting and anti-tampering mechanism for the samples; any attempt to illegally open the packaging bag will be difficult to conceal, guaranteeing the impartiality of the sampling process and the non-repudiation of the samples. It is particularly suitable for scenarios requiring a strict chain of evidence, such as supervisory inspections and dispute resolution. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the packaging bag for grain sampling provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the planar structure of the packaging bag for grain sampling provided by this utility model.

[0019] Figure 3 This is a partial structural diagram of the planar position of the packaging bag for grain sampling provided by this utility model.

[0020] Figure label: 100. Bag body; 110. Vent hole; 120. Minimum bagging line for the four major grain types; 130. M-shaped pleats; 140. Cutting line; 150. Information link; 200. Sealing part; 210. Sealing strip; 300. Edge sealing part; 310. Anti-counterfeiting strip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] The following is combined Figures 1-3This invention describes a packaging bag for grain sampling. The packaging bag includes a bag body 100, a sealing part 200, and a sealing edge 300. The bag body 100 has a receiving space with an opening on one side, the main purpose of which is to hold the grain testing sample. The bag body 100 has good sealing and durability, effectively preventing the sample from being affected by the external environment during transportation, such as moisture and dust. The sealing part 200 is connected inside the bag body 100 to seal the receiving space, effectively preventing contamination of the sample by external air and moisture, thereby ensuring the integrity and authenticity of the sample. Users can achieve sealed packaging of samples through simple operation.

[0023] The sealing portion 300 is located on one side inside the bag body 100, near the bag opening of the sealing portion 200. A removable release liner is attached to the sealing portion 300. When not in use, the release liner covers the sealing portion 300, protecting it. When sealing the sample is required, the release liner can be removed, and the sealing portion 300 seals the space between the bag opening and the sealing portion 200, separating them.

[0024] The packaging bag for grain sampling provided by this utility model uses a sealing part 200 to initially seal the containing space, followed by a secondary seal and isolation using a sealing edge part 300. This ensures the integrity and authenticity of the grain test samples during transportation and storage, providing a solid foundation for the accuracy of the test results. Furthermore, once the release paper of the sealing edge part 300 is removed and the sealed bag is pasted on, unauthorized tearing will leave obvious marks or cause structural damage. This provides an effective anti-counterfeiting and anti-tampering mechanism for the samples; any attempt to illegally open the packaging bag will be difficult to conceal, guaranteeing the impartiality of the sampling process and the non-repudiation of the samples. It is particularly suitable for scenarios requiring a strict chain of evidence, such as supervisory inspections and dispute resolution.

[0025] In some embodiments, such as Figures 1 to 3 As shown, the sealing portion 300 includes: an anti-counterfeiting adhesive strip 310, on which release paper is detachably pasted. The anti-counterfeiting adhesive strip 310 dissolves in water, leaves text when peeled off, and changes color upon preheating. The adhesive ink dissolves and disappears upon contact with water, and the anti-counterfeiting seal has strong adhesion. If the security anti-counterfeiting tape is opened and text is left behind, the anti-counterfeiting text will be revealed; it will undergo irreversible color change upon heating, increasing the anti-counterfeiting properties of the bag 100 and thus ensuring the authenticity of the sample.

[0026] Through these characteristics, the anti-counterfeiting strip 310 not only effectively prevents sample tampering during transportation and storage, but also leaves obvious traces after the sample has been illegally opened. This anti-counterfeiting mechanism provides a strong guarantee for the authenticity of the sample, ensuring the accuracy and impartiality of the test results.

[0027] In practical applications, anti-counterfeiting features are of great significance. For example, during random inspections, inspectors can use these packaging bags to seal samples. If the packaging bag is illegally opened during transportation, the anti-counterfeiting strip 310's water-soluble, peel-off-the-back, and heat-sensitive properties will immediately become apparent, providing regulatory authorities with conclusive evidence and ensuring the fairness and legality of the testing process.

[0028] In this embodiment, an information strip 150 is affixed to the outside of the bag 100, and the information strip 150 has a special writing coating. This coating has good writing performance, ensuring that the sampler's handwriting is clear and not easily blurred when signing, facilitating the sampler's signature. The information strip 150 also has a dedicated area for printing the sample number. The sample number is a unique identifier for the sample, generated by computer printing, ensuring the accuracy and uniqueness of the number. Each packaging bag has a unique number, avoiding duplicate numbers, thus achieving sample uniqueness. This numbering system not only facilitates sample management and tracking but also provides convenience for recording and querying test results.

[0029] Typically, the information strip 150 is located on the outer side of the bag 100 near the bag opening. After completing the sampling and placing the sample into the packaging bag, the sampling personnel can easily sign and record the sample number on the information strip 150. This location reduces the number of steps for sampling personnel, improving work efficiency. Furthermore, it ensures that the sample number and the sampling personnel's signature are clearly visible on the outside of the packaging bag, facilitating quick access to sample information during transportation and storage, and ensuring more efficient sample management and tracking.

[0030] In some embodiments, such as Figures 1 to 3 As shown, a cutting line 140 is provided on the outer side of the bag body 100, and the cutting line 140 is located between the sealing part 200 and the sealing edge part 300.

[0031] After receiving the samples, the sample reception desk checks the integrity of the bag. To prevent testing personnel from knowing the sample information and affecting the impartiality of the testing, the receptionist can tear off the information copy (150), renumber it, and affix the relevant information to the designated area for the testing number. After the samples are handed over to the sorting personnel, they tear open the packaging bag along the cutting line (140), pour out the sample, and begin sorting. During the sorting process, the personnel can divide the sample into multiple parts according to the testing requirements, each for different testing items. After sorting, any remaining sample can be put back into the bag, sealed tightly (200), and stored.

[0032] In this embodiment, by setting a cutting line 140 on the outside of the bag body 100, and tearing off and renumbering the information copy 150 after the testing department receives the sample, the packaging bag of this utility model not only improves the impartiality of the testing, but also ensures the integrity of the sample and the convenience of operation.

[0033] In some embodiments, such as Figures 1 to 3 As shown, the bag body 100 is provided with at least one vent hole 110, which communicates with the receiving space. Gas inside the bag can be discharged through the vent hole 110, and a plug can be provided at the location of the vent hole 110 as needed.

[0034] When packaging samples, some air may remain inside the bag. This air not only takes up space but may also affect the sample's preservation conditions. The vent 110 allows excess gas to be easily expelled, making the packaging bag more compact. The vent 110 also prevents excessive air pressure from forming inside the bag, especially during temperature changes in transportation, as these pressure fluctuations could cause the bag to expand or rupture. The vent 110 effectively prevents this from happening, ensuring the integrity of the packaging bag.

[0035] A plug can be installed at the vent 110 location if needed. The plug is designed so that the vent 110 can be closed when necessary, ensuring the airtightness of the packaging bag during transportation and storage.

[0036] In some embodiments, such as Figures 1 to 3 As shown, the sealing part 200 is a sealing strip 210, including a sealing convex strip and a sealing concave strip. The sealing convex strip is connected to one side of the top inside the bag opening; the sealing concave strip is connected to the other side of the top inside the bag opening; the sealing convex strip and the sealing concave strip are adapted to each other to seal the receiving space when the sealing convex strip and the sealing concave strip are connected.

[0037] Specifically, the sealing ridge is attached to one side of the top inside the bag opening. It is typically a raised strip with a degree of elasticity. The sealing ridge is usually made of plastic or other elastic and flexible materials, ensuring a tight seal when it engages with the sealing recess. The sealing recess is attached to the other side of the top inside the bag opening. It is shaped like a groove that fits snugly against the sealing ridge. The sealing recess is also made of plastic or other elastic and flexible materials, ensuring a tight fit with the sealing ridge and a good seal.

[0038] The sealing convex strip and sealing concave strip are mutually compatible. When connected, the sealing convex strip embeds into the groove of the sealing concave strip, forming a tight mechanical fit. This design ensures that the packaging bag effectively prevents air, moisture, and other external factors from entering the containment space when sealed, thereby protecting the integrity and authenticity of the sample.

[0039] To improve sealing performance, the sealing section 200 is provided with at least two sets of sealing strips 210. Each set of sealing strips 210 is arranged along the extension direction of the bag opening and can be opened and sealed independently. Each set of sealing strips 210 includes a sealing protrusion connected to one side of the top inside the bag opening. The sealing protrusion is a raised strip structure with a certain degree of elasticity, ensuring a tight seal when it mates with the sealing recess. Each set of sealing strips 210 also includes a sealing recess connected to the other side of the top inside the bag opening. The sealing recess is a groove that fits into the sealing protrusion. Each set of sealing strips 210 achieves sealing through mechanical engagement. When the sealing protrusion is embedded in the groove of the sealing recess, a tight mechanical engagement is formed, thereby sealing the accommodating space. Because there are at least two sets of sealing strips 210, each set can be operated independently, which not only improves the reliability of the seal but also increases operational flexibility. The sealing strips 210 ensure the continued use of subsequent bags, avoiding sample confusion caused by multiple bag transfers, while also allowing for bag reuse and saving resources.

[0040] In some embodiments, such as Figures 1 to 3 As shown, bag 100 is made of polyethylene (PE), a material with good flexibility, durability, and water resistance, making it ideal for packaging grain testing samples. The bottom of bag 100 features a gusseted design, with the bottom sides folded inwards to form M-shaped pleats 130, ensuring the bag stands stably. This "M" bottom design automatically expands when grain testing samples are loaded, allowing the bag to stand upright for easy loading.

[0041] During transportation and storage, the bottom of the bag 100 can stand stably, reducing shaking during transport and improving the stability of the packaging bag. This design not only protects the integrity of the sample but also enhances the safety of the packaging bag during transportation and storage.

[0042] In some embodiments, such as Figures 1 to 3 As shown, the bag body 100 has a minimum bagging line 120 for grain testing samples. There are usually three lines, corresponding to corn, rice (wheat), and soybeans, respectively, clearly indicating the 2 kg bagging marks for the four major grains of rice, wheat, corn, and soybeans that need to be sampled during the testing process. For example, it can be labeled with words such as "Test Sample," "Verification Sample," or "Backup Sample."

[0043] During the grain testing process, the M-shaped pleats 130 at the bottom of the bag 100 are used to secure the bag 100, and the grain testing sample is then placed inside the bag 100. The sample is filled to the minimum filling line 120 or higher to ensure the sample quantity meets testing requirements. All air is expelled from the bag to reduce sample movement during transport and prevent pressure changes that could cause the bag to expand or rupture. The sealing strip 210, which includes a raised sealing strip and a recessed sealing strip, is then fastened to achieve a seal through mechanical engagement, ensuring the bag's airtightness. The release film covering the anti-counterfeiting strip 310 is removed, and the anti-counterfeiting strip 310 is then applied for a secondary seal. The anti-counterfeiting strip 310 has properties such as dissolving in water, leaving text when peeled off, and changing color upon preheating, increasing the anti-counterfeiting features of the bag.

[0044] Upon receiving the samples, the testing department's sample reception desk checks the integrity of the packaging, including whether the sealing strip 210 and anti-counterfeiting tape 310 are intact and whether there are any obvious signs of tearing or discoloration. To prevent testing personnel from knowing the sample information and affecting the impartiality of the testing, the receptionist tears off the information copy 150. Information copy 150 records the sampler's signature and sample number. The receptionist renumbers the sample and affixes the relevant information to the "Test Number Information Paste Area." This process ensures the anonymity of the samples and avoids bias from testing personnel who may be aware of the sample's origin.

[0045] After the sample is handed over to the sorting personnel, the sorting personnel tear open the packaging bag along the cutting line 140. The cutting line 140 is located between the sealing part 200 and the sealing edge 300, allowing the sorting personnel to easily open the packaging bag without damaging other parts of the bag body 100. The sorting personnel pour the sample out of the packaging bag and begin the sorting operation. During the sorting process, the sorting personnel can divide the sample into multiple parts according to the testing requirements, each for different testing items. After the sorting is completed, if there is any remaining sample, the sorting personnel can put the remaining sample back into the packaging bag and fasten the sealing strip 210 to ensure that the remaining sample maintains its integrity and airtightness during subsequent storage or use.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A packaging bag for grain sampling, characterized in that, include: The bag body has a receiving space with an opening on one side, the receiving space being used to receive grain testing samples; A sealing part is connected to the inside of the bag to seal the containing space; A sealing section is provided on one side of the bag body, located on the side of the sealing section near the bag opening, and a detachable release paper is provided on the sealing section; When the release paper is torn off, the sealing portion adheres the space between the bag opening and the sealing portion.

2. The package for grain sampling according to claim 1, characterized in that, The edge sealing portion includes: Anti-counterfeiting adhesive strip, wherein the release paper can be detachably pasted onto the anti-counterfeiting adhesive strip.

3. The package for grain sampling according to claim 1, characterized in that, An information strip is affixed to the outside of the bag, and the information strip has a writing coating.

4. The package for grain sampling according to claim 3, characterized in that, The information link is located on the outside of the bag near the opening.

5. The packaging bag for grain sampling according to claim 1, characterized in that, The outer side of the bag body is provided with a cutting line, which is located between the sealing part and the sealing edge part.

6. The packaging bag for grain sampling according to claim 1, characterized in that, The bag body is provided with at least one vent hole, which is connected to the containing space.

7. The packaging bag for grain sampling according to claim 1, characterized in that, The sealing part is a sealing rib, including: A sealing strip is attached to one side of the top inside the bag opening; A sealing strip is attached to the other side of the top inside the bag opening; The sealing protrusion and the sealing recess are adapted to each other to seal the receiving space when the sealing protrusion and the sealing recess are connected.

8. The packaging bag for grain sampling according to claim 7, characterized in that, The sealing part is provided with at least two sets of sealing strips, each set of sealing strips is arranged along the extension direction of the bag opening, and can be opened and sealed independently.

9. The packaging bag for grain sampling according to any one of claims 1-8, characterized in that, The bag body is a PE bag body, and the bottom sides of both sides of the bag body are folded inward to form M-shaped pleats so that the bottom of the bag body can stand stably.

10. The packaging bag for grain sampling according to any one of claims 1-8, characterized in that, The bag is equipped with a minimum filling line for grain testing samples, clearly indicating the 2 kg bagging marks for the four major grain types—rice, wheat, corn, and soybeans—that need to be sampled during the testing process.

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