A test paper bag
By setting the interval between the inner and outer tongue creases and the folding angle in the test paper bag, the problem of accidentally damaging the inner tongue or the test paper during cutting is solved, realizing a safer and more reliable opening process and secondary sealing, thus improving the fairness and efficiency of the examination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陈文炜
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-26
AI Technical Summary
The existing test paper bags have a small gap between the inner and outer flaps, which makes it easy to accidentally damage the inner flap or the test paper when cutting and opening them, posing a risk of sealing failure and information leakage.
The design features an alternating vertical spacing between the inner and outer tongue crease lines, along with folding angles and tear lines on the outer tongue. This provides clear cutting guidance, increases structural clearance, and guides the cutter for precise cutting.
This reduces the risk of accidental damage to the inner tongue and exam paper, ensures the reliability of the secondary seal, improves the safety and convenience of the opening process, and prevents exam papers from scattering and information from being leaked.
Smart Images
Figure CN224408760U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of test paper security bags, and more specifically, to a test paper bag. Background Technology
[0002] In various examination scenarios, the exam paper bag serves as a crucial container for the exam papers, and the security and ease of its opening process directly impact the smooth conduct of the exam. Currently, widely used exam paper bags typically employ a double-tongue sealing structure. The outer tongue achieves an initial seal with adhesive, while the inner tongue is used for secondary sealing after the exam paper is removed. However, in actual opening operations, due to the small gap between the sealing outer and inner tongues and the lack of clear cutting guide markings, operators using utility knives, scissors, or other tools are highly susceptible to improper force control or visual deviation, leading to excessive cutting.
[0003] This misoperation could not only directly cut into the inner sealing tongue, causing damage to the edge of the tongue and thus compromising the integrity of the secondary seal, but also pose a significant risk, especially in scenarios where exam papers need to be collected. A failed seal could lead to exam papers scattering, becoming soiled, or even leaking information. More seriously, the knife could directly contact the exam papers inside the bag, causing damage to the edges. If the damaged area includes the answer area or barcode location, it will directly affect the examinee's answers and the scanning and interpretation of the exam papers, posing a potential threat to the fairness of the examination.
[0004] The existing test paper bag structure lacks an effective protection mechanism against cutting operations, causing this problem to occur frequently in examinations of all sizes, becoming a prominent pain point affecting the efficiency and security of examination administration. Utility Model Content
[0005] The main technical problem this application addresses is that existing test paper bags are prone to accidental damage to the inner tongue or test paper when cut and opened due to the small gap between the inner and outer tongues. To overcome the above-mentioned defects of the prior art, this application provides a test paper bag.
[0006] This application provides a test paper bag, comprising:
[0007] The bag body includes a front paper side and a back paper side;
[0008] A sealing inner tongue is attached to the upper end of the backing paper, and a crease line is formed between the sealing inner tongue and the backing paper.
[0009] A sealing tongue is attached to the upper end of the front paper surface. A crease line is formed between the sealing tongue and the front paper surface. The crease line of the outer tongue is parallel to the crease line of the inner tongue. The crease line of the outer tongue can be used for cutting with a cutting tool.
[0010] The inner tongue crease line and the outer tongue crease line are spaced apart vertically, with the inner tongue crease line located below the outer tongue crease line.
[0011] Compared with the prior art, the test paper bag proposed in this application has the following advantages: by setting the fold lines of the inner tongue and the outer tongue vertically at intervals, the structural gap between the sealing outer tongue and the sealing inner tongue is increased, which solves the problem in the prior art that the sealing inner tongue or the test paper inside the bag is easily damaged when cutting the sealing outer tongue due to the small gap. This reduces the risk of damage to the inner tongue, avoids loss of secondary sealing function and damage to the test paper, and improves the safety of the opening process.
[0012] In one possible implementation, the vertical width of the sealing inner tongue is greater than the distance between the inner tongue crease line and the outer tongue crease line. Compared with the prior art, this ensures that after cutting the outer tongue crease line, the sealing inner tongue still has sufficient width to cover the bag opening, guaranteeing the seal during secondary resealing, avoiding seal failure due to an excessively narrow inner tongue, and preventing test papers from scattering, becoming soiled, or having information leaked.
[0013] In one possible implementation, the sealing tongue is provided with a folded angle, which is positioned near the crease line of the tongue. By flipping the folded angle, the tool is guided to cut along the crease line of the tongue. Compared with the prior art, the folded angle provides a clear cutting guide, solving the problem of insufficient guidance in the prior art that leads to deviations in cutting force or line of sight. It guides the tool to accurately cut along the crease line of the tongue, reduces misoperation, and improves the convenience and accuracy of opening.
[0014] In one possible implementation, the folding angle is an acute-angled triangle structure. The first side of the folding angle is the side of the sealing outer tongue, the second side is the fold line, and the third side is the tear line, which is close to the crease line of the outer tongue. Compared with the prior art, this design clearly defines the structure and boundaries of the folding angle. The tear line's proximity to the crease line of the outer tongue allows for precise positioning of the cutting starting point, and the fold line ensures stable flipping operation. This further enhances the guidance of the tool's cutting path, prevents deviation in the cutting position, and improves operational reliability.
[0015] In one possible implementation, the tear line is formed by continuous toothed holes. Compared with the prior art, the continuous toothed hole structure makes the tear line easier to tear, allowing operators to quickly flip and fold the angle, thus improving operational efficiency; at the same time, it ensures the stability of the tear line, avoiding premature breakage or tear position deviation, and ensuring the effective guiding function.
[0016] In one possible implementation, the distance between the inner fold line and the outer fold line is 5-25mm. Compared with the prior art, this distance range ensures a sufficient safety distance while avoiding a loose bag structure due to excessive spacing, thus balancing safety and structural stability. It is a reasonable size optimized for actual operating scenarios. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the structure of this application. Figure 3 ;
[0020] Figure 4 This is a schematic diagram of the structure of this application. Figure 4 ;
[0021] Figure 5 This is an unfolded diagram of this application;
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Bag body; 11. Front paper side; 12. Back paper side; 2. Sealing inner tongue; 21. Inner tongue crease line; 3. Sealing outer tongue; 31. Outer tongue crease line; 4. Fold-over corner; 41. Fold-over line; 42. Tear line. Detailed Implementation
[0024] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0025] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0026] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0028] See Figures 1 to 5 This application discloses a test paper bag, including: a bag body 1, a sealing inner tongue 2, and a sealing outer tongue 3.
[0029] The bag 1 is made of paper material that meets the confidentiality requirements of the examination. It includes a front paper side 11 and a back paper side 12 that are connected to each other. The edges of the two are sealed to form a closed cavity for holding the test paper, which can effectively prevent the test paper from being scattered or contaminated during transportation and storage.
[0030] The sealing inner tongue 2 is integrally connected to the upper edge of the backing paper 12, and the connection point between it and the backing paper 12 forms an inner tongue crease line 21. This crease line is specially embossed, allowing the sealing inner tongue 2 to fold along this line towards the front paper 11. After folding, a pre-set adhesive is used to achieve a secondary seal of the test paper bag, ensuring airtightness when the test papers are collected. The top of the test paper placed inside the bag body 1 does not extend beyond the inner tongue crease line 21.
[0031] The sealing outer tongue 3 is integrally connected to the upper edge of the front paper 11, and the connection point between it and the front paper 11 forms an outer tongue crease line 31. The outer tongue crease line 31 is also embossed and remains parallel to the inner tongue crease line 21. The vertical width of the sealing outer tongue 3 is greater than the distance between the inner tongue crease line 21 and the outer tongue crease line 31.
[0032] The inner tongue crease line 21 and the outer tongue crease line 31 are vertically spaced, with the inner tongue crease line 21 located below the outer tongue crease line 31. This design creates a safety buffer zone between them. When the operator cuts the sealing outer tongue 3 along the outer tongue crease line 31, even if the tool deviates slightly, it can avoid direct contact with the inner tongue crease line 21 and the sealing inner tongue 2, effectively reducing the risk of accidental cutting. The outer tongue crease line 31 serves as a cutting reference line, and its indentation depth has been optimized to guide the tool to cut precisely along this line, further improving operational safety.
[0033] In this embodiment, the vertical width of the inner sealing tongue 2 is greater than the distance between the inner tongue crease line 21 and the outer tongue crease line 31.
[0034] The advantage of this design is that when the outer sealing tongue 3 is cut and the inner sealing tongue 2 is folded upwards, its free end can completely cover the gap between the inner tongue crease line 21 and the outer tongue crease line 31. Even if a small deviation occurs during the cutting of the outer tongue, the inner sealing tongue 2 can still maintain a complete sealing coverage area, ensuring the reliability of the secondary seal and avoiding the problem of seal failure due to insufficient inner tongue size.
[0035] In this embodiment, the sealing outer tongue 3 is provided with a folded angle 4. The folded angle 4 is located on the side of the sealing outer tongue 3 and is arranged close to the fold line 31 of the outer tongue. Its shape is an acute triangle.
[0036] When the test paper bag needs to be opened, the operator can first flip the fold angle 4 along the preset fold line, so that the corner of the sealing outer tongue 3 forms an outwardly raised guide part. This guide part can not only visually indicate the position of the outer tongue fold line 31, but also provide an initial cutting fulcrum for the cutter, guiding the cutter to accurately align with the outer tongue fold line 31 for cutting, reducing misoperation caused by visual deviation, and further improving the cutting accuracy.
[0037] In this embodiment, the first side of the folding angle 4 is the side of the sealing tongue 3, which coincides with the edge of the sealing tongue 3; the second side is the folding line 41, which is indented to facilitate the operator to quickly flip the triangular structure; the third side is the tear line 42, which is set close to the folding line 31 of the tongue.
[0038] When the fold angle 4 is flipped, the tear line 42 can guide the sealing outer tongue 3 to tear locally, forming a clear cutting starting point. When the operator cuts along the outer tongue fold line 31, the tear line 42 can further correct the tool path and prevent the cutting trajectory from deviating to the inner tongue area.
[0039] In this embodiment, the tear line 42 is formed by continuous perforations. The continuous perforation structure makes the tearing process smoother, avoids irregular tear edges, and ensures the regularity of the cutting starting point. At the same time, the visual markings created by the perforations enhance the operator's awareness of the cutting path, further reducing the risk of accidental cutting.
[0040] In this embodiment, the distance between the inner tongue crease line 21 and the outer tongue crease line 31 is 5-25mm.
[0041] If the spacing is less than 5mm, the safety buffer zone is too small, and there is still a risk of the blade accidentally cutting into the inner tongue. If the spacing is greater than 25mm, the overall size of the outer tongue and the inner tongue will be too large, increasing the material cost of the test paper bag and potentially affecting its storage convenience. A spacing of 5-25mm can effectively isolate the cutting areas of the inner and outer tongues while also taking into account the compactness and economy of the test paper bag.
[0042] The working process of this exam paper bag is as follows:
[0043] In the initial state, the sealing outer tongue 3 is folded along the outer tongue fold line 31 to seal the bag body 1.
[0044] When opening, first flip the triangular structure along the fold line 41 of the fold angle 4. Its tear line 42 makes it easy to tear open, forming a cutting guide to guide the blade to cut precisely along the outer tongue fold line 31. Because the inner tongue fold line 21 is parallel to the outer tongue fold line 31 and is spaced 5-25mm apart vertically, it can avoid accidentally cutting the sealed inner tongue 2 or the test paper inside the bag during cutting.
[0045] When the test paper needs to be resealed after being removed, the inner sealing tongue 2 is folded along the inner tongue fold line 21. Its vertical width is greater than the distance between the two fold lines, which can completely cover the opening and ensure the seal.
[0046] The beneficial effects of this application include:
[0047] I. Enhanced Cutting Safety: By placing the inner tongue crease line 21 below the outer tongue crease line 31 and setting a parallel spacing of 5-25mm, a safety buffer zone is formed. When cutting the outer tongue, even if the blade deviates slightly, it can avoid accidentally damaging the sealed inner tongue 2 or the test paper inside the bag, reducing the risk of secondary seal failure and test paper damage caused by damage to the inner tongue.
[0048] II. Ensuring the reliability of the secondary seal: The vertical width of the inner sealing tongue 2 is greater than the distance between the two fold lines, ensuring that it completely covers the opening area after folding. Even if there is a deviation in the cutting of the outer tongue, the inner tongue can still maintain an intact sealing surface, effectively preventing the test paper from scattering, getting dirty, or leaking information.
[0049] III. Optimizing Opening Accuracy and Efficiency: A folding angle structure 4 is added to the sealing outer tongue 3, which forms a clear cutting guide after flipping. This design intuitively locates the starting point of the outer tongue fold line 31, guiding the cutter to accurately cut along the predetermined path, reducing operational deviations and improving opening convenience.
[0050] IV. Balanced Structural Economy: The crease spacing of 5-25mm is optimized to ensure a safe distance while avoiding a loose structure in the bag body, thus balancing protective performance and material cost control.
[0051] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.
[0052] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A test paper bag, characterized in that, include: The bag body includes a front paper side and a back paper side; A sealing inner tongue is attached to the upper end of the backing paper, and a crease line is formed between the sealing inner tongue and the backing paper. A sealing tongue is attached to the upper end of the front paper surface. A crease line is formed between the sealing tongue and the front paper surface. The crease line of the outer tongue is parallel to the crease line of the inner tongue. The crease line of the outer tongue can be used for cutting with a cutting tool. The inner tongue crease line and the outer tongue crease line are spaced apart vertically, with the inner tongue crease line located below the outer tongue crease line.
2. The test paper bag according to claim 1, characterized in that, The vertical width of the inner sealing tongue is greater than the distance between the crease line of the inner tongue and the crease line of the outer tongue.
3. The test paper bag according to claim 1, characterized in that, The sealing tongue is provided with a folding angle, which is located near the crease line of the tongue. By flipping the folding angle, the tool is used to guide the cutting tool to cut the crease line of the tongue.
4. The test paper bag according to claim 3, characterized in that, The folding angle is an acute triangle structure. The first side of the folding angle is the side of the sealing outer tongue, the second side of the folding angle is the fold line, and the third side of the folding angle is the tear line, which is close to the fold line of the outer tongue.
5. The test paper bag according to claim 4, characterized in that, The tear line is formed by continuous tooth holes.
6. The test paper bag according to claim 1, characterized in that, The distance between the inner tongue crease line and the outer tongue crease line is 5-25mm.