A sample-keeping anti-counterfeiting incense packaging tube

Abstract

This utility model provides a sample-keeping anti-counterfeiting incense packaging tube, belonging to the field of incense packaging technology. It includes a top cover, a connecting tube, and an incense tube. The connecting tube has a reserved channel with a limiting component. The limiting component contains multiple radially distributed tooth-shaped elastic limiting pieces. In its natural state, the tips of the elastic limiting pieces form a conical protrusion, enclosing a closed limiting hole. This utility model, through the deformation and reset characteristics of the elastic limiting pieces, strictly restricts the incense to only moving from the incense tube towards the top cover for sample incense sampling and inspection. Once all incense is removed, it cannot be reversed, preventing incense inconsistent with the incense already in the tube from being mixed back into the tube. This avoids confusion between different batches and qualities of incense, ensuring the consistency between the incense quality in the packaging tube and the seller's quality commitment. This helps quality-conscious and reputable companies protect their products from counterfeiting or malicious complaints and claims.

Description

Technical Field

[0001] This utility model relates to the field of incense packaging technology, and more specifically, to a sample-keeping anti-counterfeiting incense packaging tube. Background Technology

[0002] Existing incense stick packaging tubes generally have a relatively simple structure, mainly consisting of two parts: first, the incense tube, which is a hollow structure with one end open and the other closed, and whose internal space is adapted to the length and diameter of the incense sticks to allow for the centralized storage of multiple sticks; second, the top cover, which seals the opening of the incense tube. The connection between the top cover and the incense tube is mostly by screw thread, snap-fit, or direct insertion. Some products may have a simple label added at the junction of the top cover and the incense tube, which only serves to identify product information and has no special functional design. In addition, a few incense stick packaging tubes adopt a box-like structure, consisting of a box body and a top cover. Its core structure is essentially the same as the "incense tube + top cover" cylindrical structure, with the main purpose of achieving basic storage and sealing of incense sticks.

[0003] However, existing incense packaging lacks tamper-proof design, and the connection between the top cover and the incense tube can be easily opened and restored. As a result, when quality disputes arise with incense products, sellers cannot prove whether the incense in question is the same product as the original storage tube, and consumers cannot confirm whether the incense they purchased has been replaced midway. Both buyers and sellers lack effective quality verification evidence, which is not conducive to consumers who have bought counterfeit or substandard incense protecting their rights, nor is it conducive to incense retailers who value quality and reputation in building their brands. Summary of the Invention

[0004] The purpose of this utility model is to provide a sample retention anti-counterfeiting incense packaging tube, which can realize the retention of incense samples in the same packaging tube and the anti-tampering of packaging. This allows producers and operators to effectively prove the quality of their products in order to deal with quality disputes and prevent malicious complaints and claims, and also allows consumers to verify the quality of incense samples and provide reliable evidence when protecting their rights.

[0005] The present invention is achieved through the following technical solution: a sample-keeping anti-counterfeiting incense packaging tube, comprising a top cover, a connecting tube, and an incense tube. The connecting tube has a reserved channel in the center for the incense to pass through. A limiting member is provided on the inner wall of the reserved channel. Multiple elastic limiting plates are provided in the limiting member. The multiple elastic limiting plates have a tooth-like structure that is radially distributed from the center of the limiting member to the edge. The length of the elastic limiting plate is greater than the radius of the limiting member. The tip of the elastic limiting plate is conical and protrudes towards the connecting tube for connecting to the top cover. The tips of the multiple elastic limiting plates surround to form a limiting hole. In the natural state, the limiting hole is closed. When the incense moves towards the top cover, it squeezes the elastic limiting plate to deform and expand the limiting hole. When the incense moves in the opposite direction, the elastic limiting plate resets and blocks the incense from retracting through its tip.

[0006] Furthermore, the bottom end of the connecting cylinder is provided with a conical top surface, the top of the conical top surface faces the reserved channel and abuts against the bottom surface of the elastic limiting piece, and a through hole is opened at the top of the conical top surface. The through hole is coaxially arranged with the limiting hole, and the diameter of the through hole is the same as the diameter of the reserved channel.

[0007] Furthermore, the bottom end of the connecting cylinder is provided with an arched cavity, the arched cavity is recessed toward the reserved channel and communicates with the reserved channel, the elastic limiting piece is located in the arched cavity, and the depth of the arched cavity is not less than the height of the elastic limiting piece when it is at its maximum deformation.

[0008] Furthermore, the connecting cylinder and the incense tube are connected by threads. The bottom surface of the connecting cylinder is uniformly raised with limiting oblique plates along the circumferential direction. The top surface of the incense tube is correspondingly provided with auxiliary oblique plates along the circumferential direction. The surface of the limiting oblique plates facing the screw-in direction of the connecting cylinder is an inclined surface, and the surface of the limiting oblique plates facing the screw-out direction of the connecting cylinder is a vertical surface. The inclination direction of the auxiliary oblique plates is opposite to the inclination direction of the limiting oblique plates, and the auxiliary oblique plates and the vertical surfaces of the limiting oblique plates are engaged to prevent the connecting cylinder from loosening in the reverse direction. After being opened in the reverse direction by strong force, the limiting oblique plates will leave irreparable damage marks.

[0009] Furthermore, the gap width between the elastic limiting pieces is smaller than the diameter of the incense stick.

[0010] Furthermore, the connecting tube is provided with an anti-counterfeiting sticker, which has a unique identification code. The anti-counterfeiting sticker covers the seam between the incense tube and the connecting tube, and will leave irreparable damage marks after being torn off.

[0011] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0012] This utility model provides a sample-preserving anti-counterfeiting incense packaging tube. The connecting tube has a reserved channel with a limiting component. The limiting component contains multiple elastic limiting plates, which have a radially distributed tooth-like structure from the center to the edge. The length of each elastic limiting plate is greater than its radius, and its tip is a conical protrusion, forming a limiting hole. In its natural state, the limiting hole is closed. When an incense stick moves towards the top cover, it compresses the elastic limiting plates, causing deformation and expanding the limiting hole. The incense stick is then tightly surrounded by the elastic limiting plates, forming a sample incense stick. When identification is needed, a section can be broken off for testing. When the remaining sample incense stick moves in the opposite direction, the elastic limiting plates reset and block the incense stick with their tips, causing it to retract and be secured between the elastic limiting plates, thus preserving the sample. Through this structural design, this utility model has the following advantages:

[0013] 1. This utility model, through the deformation and reset characteristics of the elastic limiting piece, strictly restricts the incense sticks to only move from the incense tube towards the top cover to complete unidirectional incense extraction, preventing them from reversing. This effectively prevents the extracted incense sticks from being mixed back into the incense tube and also avoids the mixing of incense sticks from different batches or of different qualities placed into the incense tube from the outside. It ensures the consistency of the sample incense sticks remaining in the incense tube with the incense sticks of the same batch in the incense tube, and also prevents incense sticks that are inconsistent with the incense sticks in the incense tube from being mixed back into the incense tube. This avoids the mixing of incense sticks from different batches or of different qualities, not only ensuring the consistency of the incense stick quality in the incense tube and guaranteeing the consistency of the incense stick quality in the incense tube with the seller's quality commitment, but also preventing others from maliciously claiming or demanding compensation by putting other incense sticks into the incense tube in the event of a dispute. Thus, it helps companies that value quality and reputation to protect their products from being counterfeited or maliciously complained about and claimed.

[0014] 2. This utility model, through the deformation and reset characteristics of the elastic limiting piece, strictly restricts the incense stick to only move from the incense tube to the top cover to complete the sampling and inspection of the sample incense stick. After all the incense sticks are taken out, they cannot be reversed. A portion of the sampled incense sticks can be left in the incense tube, ensuring that the sampled incense sticks taken out and the sampled incense sticks left in the incense tube are from the same batch of products, thus achieving the function of preserving incense stick samples.

[0015] 3. This utility model provides axial support for the elastic limiting plate by abutting the tapered top surface and the bottom surface of the elastic limiting plate, preventing the elastic limiting plate from shifting due to long-term compression by the incense stick, and extending the service life of the overall structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the connecting cylinder in this utility model;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0020] Figure 4 This is an exploded view of the connecting cylinder structure in this utility model;

[0021] Figure 5This is a partial schematic diagram of the bottom structure of the connecting cylinder in this utility model;

[0022] Figure 6 for Figure 5 Enlarged schematic diagram of part B;

[0023] Figure 7 This is a partial schematic diagram of the top structure of the incense tube in this utility model;

[0024] Figure 8 This is a schematic diagram showing the connection relationship between the annular limiting member and the elastic limiting piece in this utility model;

[0025] Figure 9 This is a schematic diagram showing a connection relationship between the frustum-shaped limiting member and the elastic limiting piece in this utility model;

[0026] Figure 10 This is a schematic diagram illustrating another connection relationship between the frustum-shaped limiting member and the elastic limiting piece in this utility model.

[0027] Icons: 1. Incense holder; 11. Auxiliary inclined plate; 2. Top cover; 3. Connecting tube; 31. Reserved channel; 32. Limiting component; 321. Elastic limiting plate; 322. Limiting hole; 33. Conical top surface; 331. Perforation; 34. Arched cavity; 35. Limiting inclined plate; 351. Inclined surface; 352. Vertical surface; 36. Anti-counterfeiting sticker. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] Example

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] like Figures 1-4 As shown, a sample-keeping anti-counterfeiting incense packaging tube is provided, including an incense tube 1 and a top cover 2. A connecting tube 3 is provided at the top of the incense tube 1. A reserved channel 31 for the incense stick to pass through is opened in the center of the connecting tube 3. A limiting member 32 is provided on the inner wall of the reserved channel 31. Multiple elastic limiting pieces 321 are provided inside the limiting member 32. The multiple elastic limiting pieces 321 have a tooth-like structure radially distributed from the center to the edge of the limiting member 32. The length of each elastic limiting piece 321 is greater than the length of the limiting member 32. The radius of the positioning member 32, the tip of the elastic limiting piece 321 is conical and protrudes in the direction of the connecting cylinder 3 for connecting the top cover 2, and the tips of multiple elastic limiting pieces 321 surround to form a limiting hole 322. In the natural state, the diameter of the limiting hole 322 is smaller than the diameter of the incense stick. When the incense stick moves towards the top cover 2, it squeezes the elastic limiting piece 321 to deform and enlarge the limiting hole 322. When the incense stick moves in the opposite direction, the elastic limiting piece 321 resets and blocks the incense stick from retracting through its tip.

[0033] In this embodiment, the connecting tube 3 is detachably connected to the top of the incense tube 1, and the top cover 2 is assembled at the end of the connecting tube 3 away from the incense tube 1. Multiple elastic limiting pieces 321 are fixed in a radial, tooth-like structure within the limiting member 32 on the inner wall of the reserved channel 31 of the connecting tube 3, ensuring that the length of the elastic limiting piece 321 is greater than the radius of the limiting member 32, and that the tips of the elastic limiting pieces 321 protrude arc-shaped toward the top cover 2, forming a limiting hole 322. The natural diameter of the limiting hole 322 is smaller than the diameter of the incense stick, and the limiting hole 322 is coaxial with the reserved channel 31.

[0034] When a user needs to retrieve incense, the incense holder 1 is inverted. The incense sticks move towards the top cover 2 using their own weight. The incense sticks compress the tip of the elastic limiting piece 321, forcing it to deform towards the inner wall of the reserved channel 31. The limiting hole 322 expands to fit the diameter of the incense stick, allowing it to pass through the reserved channel 31 in one direction. If an attempt is made to retract the incense stick into the incense holder 1, the elastic limiting piece 321 returns to its original elastic state, its tip reverting to a conical protrusion and pressing against the outer wall of the incense stick, forming a reverse obstruction. This effectively prevents the retrieved incense sticks from re-entering the incense holder 1, avoiding confusion between different batches and qualities of incense sticks, and ensuring the consistency of incense quality within the incense holder 1.

[0035] When conducting quality assessment of incense products, the top of the incense stick is removed from the reserved channel 31, leaving the bottom of the incense stick inside the incense tube 1. The part of the incense stick extending out of the reserved channel 31 is broken off to form a sample for tasting or professional assessment. The remaining part of the incense stick remains inside the incense tube 1 to maintain consistency with the sample.

[0036] like Figure 8As shown, in one embodiment, the limiting member 32 is annular, and the outer edge of the limiting member 32 is fixedly connected to the inner wall of the reserved channel 31.

[0037] like Figure 9 As shown, in one embodiment, the limiting member 32 is a frustum-shaped structure with its upper and lower bottom surfaces connected. The elastic limiting piece 321 is installed on the smaller bottom surface of the limiting member 32. The smaller bottom surface of the limiting member 32 faces the reserved channel 31, and the larger bottom surface of the limiting member 32 faces the bottom end of the connecting cylinder 3. The outer edge of the larger bottom surface of the limiting member 32 is fixedly connected to the inner wall of the reserved channel 31.

[0038] like Figure 10 As shown, in one embodiment, the limiting member 32 is a frustum-shaped structure with its upper and lower bottom surfaces connected. The elastic limiting piece 321 is installed on the smaller bottom surface of the limiting member 32. The smaller bottom surface of the limiting member 32 faces the bottom end of the connecting cylinder 3, and the larger bottom surface of the limiting member 32 faces the reserved channel 31. The outer edge of the larger bottom surface of the limiting member 32 is fixedly connected to the inner wall of the reserved channel 31.

[0039] like Figures 1-4 As shown, in one embodiment, the bottom end of the connecting cylinder 3 is provided with a conical top surface 33, the top end of the conical top surface 33 faces the reserved channel 31 and abuts against the bottom surface of the elastic limiting piece 321, and the top end of the conical top surface 33 is provided with a through hole 331, the through hole 331 is coaxially arranged with the limiting hole 322, and the diameter of the through hole 331 is the same as the diameter of the reserved channel 31.

[0040] In this embodiment, the bottom end of the connecting cylinder 3 is integrally formed with a conical top surface 33. The top of the conical top surface 33 abuts against the bottom surface of the limiting member 32, and the top through hole 331 is coaxial with the limiting hole 322 and the reserved channel 31. The diameter of the through hole 331 is the same as the diameter of the reserved channel 31. During assembly, the conical top surface 33 provides stable support for the elastic limiting piece 321 in the limiting member 32 through its own conical structure, preventing the elastic limiting piece 321 from shifting in the reserved channel 31. In use, the incense stick in the incense tube 1 first passes through the through hole 331 of the conical top surface 33, then precisely enters the limiting hole 322, and then exits along the reserved channel 31. When moving in the opposite direction, the conical surface of the conical top surface 33 can help the elastic limiting piece 321 maintain its original shape, preventing the incense stick from pushing the elastic limiting piece 321 to shift, causing the blocking failure due to displacement, and extending the service life of the overall structure.

[0041] like Figure 1 and Figure 2As shown, in one embodiment, the bottom end of the connecting cylinder 3 is provided with an arched cavity 34, the arched cavity 34 is recessed toward the reserved channel 31 and communicates with the reserved channel 31, the elastic limiting piece 321 is located in the arched cavity 34, and the depth of the arched cavity 34 is not less than the height of the elastic limiting piece 321 when it is at its maximum deformation.

[0042] In this embodiment, the bottom end of the connecting cylinder 3 has an arched cavity 34 that is recessed and connected to the reserved channel 31. The elastic limiting piece 321 is located inside the arched cavity 34, and the depth of the arched cavity 34 is not less than the height of the elastic limiting piece 321 at its maximum deformation. The matching of the depth of the arched cavity 34 with the maximum deformation height of the elastic limiting piece 321 provides sufficient space for the deformation of the elastic limiting piece 321, avoiding deformation restriction due to insufficient space, and ensuring that the limiting hole 322 can be expanded to match the diameter of the incense stick, improving the smoothness of incense dispensing. When the incense stick moves towards the top cover 2 and squeezes the elastic limiting piece 321, the elastic limiting piece 321 deforms into the arched cavity 34, and the deformation height of the elastic limiting piece 321 can be completely accommodated within the arched cavity 34. When the elastic limiting piece 321 returns to its original position, the arc-shaped inner wall of the arched cavity 34 can assist the elastic limiting piece 321 in restoring its original shape, avoiding permanent deformation of the elastic limiting piece 321 due to excessive deformation.

[0043] like Figures 5-7 As shown, in one embodiment, the connecting cylinder 3 and the incense tube 1 are connected by threads. The bottom surface of the connecting cylinder 3 is uniformly provided with a limiting oblique piece 35 along the circumferential direction. The top surface of the incense tube 1 is correspondingly provided with an auxiliary oblique piece 11 along the circumferential direction. The surface of the limiting oblique piece 35 facing the screwing direction of the connecting cylinder 3 is an inclined surface 351, and the surface of the limiting oblique piece 35 facing the screwing direction of the connecting cylinder 3 is a vertical surface 352. The inclination direction of the auxiliary oblique piece 11 is opposite to the inclination direction of the limiting oblique piece 35, and the auxiliary oblique piece 11 and the vertical surface 352 of the limiting oblique piece 35 are engaged to prevent the connecting cylinder 3 from loosening in the opposite direction.

[0044] In this embodiment, the connecting cylinder 3 and the incense tube 1 are connected by threads. The bottom surface of the connecting cylinder 3 is provided with a limiting inclined plate 35, and the top surface of the incense tube 1 is provided with an auxiliary inclined plate 11. When assembling the connecting cylinder 3 and the incense tube 1, rotating the connecting cylinder 3 clockwise causes the inclined surface 351 of the limiting inclined plate 35 to slide into contact with the inclined surface 351 of the auxiliary inclined plate 11, allowing for smooth screwing in. The engagement of the inclined surface 351 and the vertical surface 352 does not affect the normal screwing in and assembly of the connecting cylinder 3, and also forms an effective barrier when it loosens in the opposite direction, preventing the connecting cylinder 3 from separating from the incense tube 1 due to vibration during transportation and use, thus ensuring the sealing of the packaging. When the connecting cylinder 3 tends to loosen in the opposite direction due to vibration or external force, the auxiliary inclined plate 11 and the vertical surface 352 of the limiting inclined plate 35 abut against each other. Since the vertical surface 352 cannot slide, a rigid jamming is formed, preventing the connecting cylinder 3 from continuing to screw out. When it is necessary to inspect the incense sticks inside the incense holder 1 during use, the contact structure between the inclined surface 351 of the limiting inclined plate 35 and the inclined surface 351 of the auxiliary inclined plate 11 must be broken, thus leaving traces of damage. This structure also prevents others from opening the incense holder from the outside and mixing incense sticks of different qualities into the incense holder 1 for malicious claims or demands.

[0045] like Figures 2-4 As shown, in one embodiment, the gap width between the elastic limiting pieces 321 is smaller than the diameter of the incense stick.

[0046] In this embodiment, the gap width between adjacent elastic limiting pieces 321 is no greater than half the diameter of the incense stick. When the incense stick moves towards the top cover 2, even if it slightly deviates from the contact gap area, it cannot escape from the gap because the gap width between the elastic limiting pieces 321 is less than half the diameter of the incense stick. It can only continuously squeeze the tip of the elastic limiting piece 321 and pass through the enlarged limiting hole 322, ensuring that all incense sticks must move unidirectionally through the limiting hole 322, thus improving the reliability of the unidirectional incense dispensing function. When the incense stick moves in the opposite direction, the narrow design of the gap width between the elastic limiting pieces 321 further prevents the incense stick from getting stuck in the gap, ensuring that the elastic limiting piece 321 can stably reset and block the incense stick.

[0047] like Figure 1 As shown, in one embodiment, the connecting tube 3 is provided with an anti-counterfeiting sticker, which has a unique identification code. The anti-counterfeiting sticker covers the seam between the incense tube 1 and the connecting tube 3, and will leave irreparable damage marks after being torn off.

[0048] In this embodiment, a fragile sticker with a unique identification code is placed over the seam between the incense tube 1 and the connecting tube 3. When the device leaves the factory, the anti-counterfeiting sticker completely covers the seam, and the packaging is unopened. When a user or others attempt to separate the connecting tube 3 from the incense tube 1, the sticker must be removed. The fragile material will suffer irreparable damage during the removal process, and the unique identification code can be verified by scanning, ensuring that the sticker cannot be counterfeited or reused.

[0049] In the event of a dispute regarding the quality of incense sticks, the incense sample retained on the elastic limiting piece 321 can be used as a comparison sample, enabling the identification of incense quality without damaging the incense tube. Furthermore, the design, combining the elastic limiting piece 321, the inclined surface 351 of the limiting oblique piece 35 with the inclined surface 351 of the auxiliary oblique piece 11, and the fragile sticker, prevents the insertion of incense sticks of different qualities into the incense tube 1 from the outside, thus avoiding confusion among the incense sticks inside.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sample-retention anti-counterfeiting incense packaging tube, comprising a top cover, a connecting tube, and an incense tube, characterized in that: The incense tube has a connecting tube at its top, with a reserved channel in the center for the incense stick to pass through. A limiting member is provided on the inner wall of the reserved channel, and multiple elastic limiting plates are provided within the limiting member. These elastic limiting plates have a tooth-like structure radially distributed from the center to the edge of the limiting member. The length of each elastic limiting plate is greater than the radius of the limiting member. The tips of the elastic limiting plates are tapered protrusions facing the connecting tube towards the top cover. The tips of the multiple elastic limiting plates enclose a limiting hole. In its natural state, the limiting hole is closed. When the incense stick moves towards the top cover, it compresses the elastic limiting plates, deforming them to enlarge the limiting hole. When the incense stick moves in the opposite direction, the elastic limiting plates reset and block the incense stick from retracting through their tips.

2. The sample-keeping anti-counterfeiting incense packaging tube according to claim 1, characterized in that: The bottom end of the connecting cylinder is provided with a conical top surface. The top of the conical top surface faces the reserved channel and abuts against the bottom surface of the elastic limiting piece. A through hole is opened at the top of the conical top surface. The through hole is coaxially arranged with the limiting hole, and the diameter of the through hole is the same as the diameter of the reserved channel.

3. The sample-keeping anti-counterfeiting incense packaging tube according to claim 1, characterized in that: The bottom end of the connecting cylinder has an arched cavity, which is recessed toward and communicates with the reserved channel. The elastic limiting piece is located inside the arched cavity, and the depth of the arched cavity is not less than the height of the elastic limiting piece when it is at its maximum deformation.

4. The sample-keeping anti-counterfeiting incense packaging tube according to claim 1, characterized in that: The connecting cylinder and the incense tube are connected by threads. The bottom surface of the connecting cylinder is uniformly raised with limiting oblique plates along the circumferential direction. The top surface of the incense tube is correspondingly provided with auxiliary oblique plates along the circumferential direction. The surface of the limiting oblique plates facing the screw-in direction of the connecting cylinder is an inclined surface, and the surface of the limiting oblique plates facing the screw-out direction of the connecting cylinder is a vertical surface. The inclination direction of the auxiliary oblique plates is opposite to that of the limiting oblique plates, and the auxiliary oblique plates are engaged with the vertical surface of the limiting oblique plates to prevent the connecting cylinder from loosening in the reverse direction. If the connecting cylinder is opened in the reverse direction by strong force, the limiting oblique plates will leave irreparable damage marks.

5. The sample-keeping anti-counterfeiting incense packaging tube according to claim 1, characterized in that: The gap width between the elastic limiting pieces is smaller than the diameter of the incense stick.

6. The sample-keeping anti-counterfeiting incense packaging tube according to claim 1, characterized in that: The connecting tube is equipped with an anti-counterfeiting sticker with a unique identification code. The anti-counterfeiting sticker covers the seam between the incense tube and the connecting tube. Removing the sticker will leave irreparable damage marks.

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