A one-time locking structure for preventing counterfeiting of a packaging bag

Abstract

This utility model relates to the field of disposable lock technology, and discloses an anti-counterfeiting disposable lock structure for packaging bags, including a lock body, a top post, a semi-circular blade, and a rotating wheel. A latch is fixedly installed on the upper surface of the lock body near the outer wall. A first hole is formed on the other side of the upper surface of the lock body near the outer wall. A plastic claw is fixedly installed in the center of the first hole. A cutting cavity is formed on the upper periphery of the first hole inside the lock body. A sliding cavity is formed on the other side of the outer wall of the cutting cavity inside the lock body. A second hole is formed on the other side of the outer wall of the lock body. An imprinting cavity is formed on the periphery of the outer wall of the first hole inside the lock body. A connecting rod is fixedly installed on one side of the outer wall of the semi-circular blade. In this utility model, the device leaves irregular imprints on the outer wall of the latch during use, and the device can be quickly opened without a knife or scissors.

Description

Technical Field

[0001] This utility model relates to the field of disposable lock technology, and in particular to an anti-counterfeiting disposable lock structure for packaging bags. Background Technology

[0002] Once locked, the anti-counterfeiting one-time lock structure cannot be opened without damage through normal means. Any attempt to force it open will inevitably cause permanent, visible damage to the lock, leaving clear evidence that the item has been illegally opened or tampered with. It is commonly used in logistics, energy facilities, product anti-counterfeiting, judicial, and financial fields. The anti-counterfeiting one-time lock structure on packaging bags prevents criminals from recycling genuine product packaging bags to refill counterfeit or substandard products, and ensures that the product remains unopened, tampered with, stolen, or adulterated throughout the entire supply chain from the factory to the consumer.

[0003] However, by using a hollow cylinder to encircle the latch, it is still possible to remove the latch from the plastic claws of the existing anti-counterfeiting one-time lock structure without damage, making it impossible to effectively verify authenticity later. In addition, the latch is quite tough and difficult to open without scissors or a knife; forcing it open by hand can easily lead to hand injuries.

[0004] Therefore, this application provides a one-time anti-counterfeiting locking structure for packaging bags to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a one-time anti-counterfeiting lock structure for packaging bags. During use, this device leaves irregular marks on the outer wall of the lock tongue and can be quickly opened without knives or scissors.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A one-time anti-counterfeiting lock structure for packaging bags includes a lock body, a top post, a semi-circular blade, and a rotating wheel. A latch is fixedly installed on the upper surface of the lock body near the outer wall. A first hole is formed on the other side of the upper surface of the lock body near the outer wall. A plastic claw is fixedly installed in the center of the first hole. A cutting cavity is formed on the upper periphery of the first hole inside the lock body. A sliding cavity is formed on the other side of the outer wall of the cutting cavity inside the lock body. A second hole is formed on the other side of the outer wall of the lock body. An imprinting cavity is formed on the periphery of the outer wall of the first hole inside the lock body. A connecting rod is fixedly installed on one side of the outer wall of the semi-circular blade. A top plate is fixedly installed on one side of the outer wall of the connecting rod. A spring is sleeved around the connecting rod. A rotating shaft is fixedly installed inside the rotating wheel. Multiple irregularly shaped blades are evenly spaced and fixedly arranged around the outer wall of the rotating wheel. A pressing block is fixedly installed on one side of the outer wall of the top post.

[0007] Furthermore, the second hole is fixedly connected to the sliding cavity, and the top column is slidably disposed inside the second hole.

[0008] Furthermore, the locking tongue is slidably disposed inside the first hole, and the locking tongue is engaged with the plastic claw.

[0009] Furthermore, the semi-circular blade is slidably disposed inside the cutting cavity, and the connecting rod and the top plate are both slidably disposed inside the sliding cavity.

[0010] Furthermore, one end of the outer wall of the spring is fixedly connected to the inner wall of one side of the sliding cavity, and the other end of the outer wall of the spring is fixedly connected to one end of the outer wall of the top plate.

[0011] Furthermore, the rotating shaft is rotatably mounted on the inner wall of the front and rear ends of the imprinting cavity via bearings.

[0012] Furthermore, the lock body, lock tongue, and plastic claws are all made of polyamide fiber, while the semi-circular blade and irregular blade are both made of stainless steel.

[0013] This utility model has the following beneficial effects: 1. The present invention proposes a one-time anti-counterfeiting lock structure for packaging bags. When the lock tongue is inserted into the first hole, it will drive the internal rotating wheel to rotate. At the same time, multiple irregularly shaped blades will leave different shaped marks on the outer surface of the lock tongue under the pressure of the lock tongue. There are gaps between the barbs on the outer periphery of the lock tongue, which causes the rotating wheel to spin freely, thereby making the left marks more irregular.

[0014] 2. This utility model proposes a one-time anti-counterfeiting lock structure for packaging bags. When using this device, if no knife or scissors are available, the top post can be inserted into the second hole and the pressing block can be pressed. The semi-circular blade will cut the lock tongue. After cutting, the top post can be removed. When this function is not used, the connecting rod is pushed by the spring and always stays inside the sliding cavity. At the same time, the semi-circular blade is always on the other side of the cutting cavity, which does not affect the insertion of the lock tongue. Attached Figure Description

[0015] Figure 1 This is an overall isometric schematic diagram of the present invention; Figure 2 This is an isometric schematic diagram of the locking tongue of this utility model; Figure 3 This is a cross-sectional view of the lock body of this utility model; Figure 4 This is a schematic diagram of the top column connection structure of this utility model; Figure 5 This is a cross-sectional view of the internal connecting rod connection of the lock body of this utility model; Figure 6This is a cross-sectional view of the lock body of this utility model, showing the internal rotating wheel connection. Figure 7 This is a schematic diagram of the rotating wheel connection structure of this utility model; Figure 8 Figure A is an enlarged schematic diagram of this utility model.

[0016] Legend: 1. Lock body; 2. Lock tongue; 3. First hole; 4. Second hole; 5. Top pin; 6. Pressing block; 7. Plastic claw; 8. Imprint cavity; 9. Rotating shaft; 10. Rotating wheel; 11. Spring; 12. Connecting rod; 13. Sliding cavity; 14. Cutting cavity; 15. Semi-circular blade; 16. Top plate; 17. Irregular blade. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 — Figure 8 This utility model provides an embodiment of a one-time anti-counterfeiting lock structure for packaging bags, including a lock body 1, a top post 5, a semi-circular blade 15, and a rotating wheel 10. A lock tongue 2 is fixedly provided on the upper end face of the lock body 1 near the outer wall, and a first hole 3 is opened on the other side of the upper end face of the lock body 1 near the outer wall. A plastic claw 7 is fixedly provided in the middle of the first hole 3. The lock body 1, lock tongue 2, and plastic claw 7 are all made of polyamide fiber, and the semi-circular blade 15 and the irregular blade 17 are both made of stainless steel. The lock tongue 2 is slidably disposed inside the first hole 3, and the lock tongue 2 is engaged with the plastic claw 7.

[0019] Specifically, when using this device, the latch 2 is inserted into the first hole 3. Multiple barbs on the latch 2 engage with the plastic claws 7 inside the first hole 3, allowing only forward movement and preventing backward movement. Simultaneously, the rotating wheel 10 rotates under the influence of the latch 2. Multiple irregularly shaped blades 17 on the rotating wheel 10 leave marks on the outer surface of the latch 2 under the pressure of the latch 2. Because there are gaps between the barbs on the outer wall of the latch 2, the rotating wheel 10 may spin freely. Furthermore, the blades of the multiple irregularly shaped blades 17 have different shapes, making the marks left on the outer wall of the latch 2 even more irregular. Later, if criminals illegally remove the latch 2 without damage and reinsert it, the multiple irregularly shaped blades 17 will still uncontrollably leave new marks, making the authenticity of the latch easily discernible by its appearance. When a user wants to cut the latch 2 without scissors or a knife, they can insert the top post 5 into the second hole 4, press the pressing block 6 to push the connecting rod 12, causing the semi-circular blade 15 to cut the latch 2. After cutting, release the pressing block 6 and remove the connecting rod 12 from the second hole 4. The semi-circular blade 15 will return to its original position under the return of the spring 11. The plastic claw 7 can be engaged with the barbs on the outer wall of the latch 2. It should be noted that polyamide fiber has excellent mechanical strength and wear resistance, ensuring that the latch 2 is not easily broken during insertion and pulling. The plastic claw 7 inside the lock body 1 is also not easily worn. The hardness of stainless steel is much higher than that of polyamide fiber. The irregularly shaped blade 17 can easily leave a mark on the outer surface of the latch 2, and the semi-circular blade 15 can easily cut off the latch 2. The spring 11 is a chrome vanadium steel spring, which has good fatigue resistance and impact resistance. The standard parts used in this application can be directly purchased from the market, and irregularly shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part all adopt mature existing technologies such as bolt connection, riveting connection, welding, and some conventional methods. The mechanical parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail. The contents not described in detail in this specification are all existing technologies known to those skilled in the art.

[0020] Reference Figure 3 — Figure 5 , Figure 8A cutting cavity 14 is provided inside the lock body 1 at the upper periphery of the first hole 3. A sliding cavity 13 is provided inside the lock body 1 on the other side of the outer wall of the cutting cavity 14. A second hole 4 is provided on the other side of the outer wall of the lock body 1. The second hole 4 is fixedly connected to the sliding cavity 13. An imprint cavity 8 is provided inside the lock body 1 on the periphery of one side of the outer wall of the first hole 3. A connecting rod 12 is fixedly installed on one side of the outer wall of the semi-circular blade 15. A top plate 16 is fixedly installed on one side of the outer wall of the connecting rod 12. A spring 11 is sleeved around the connecting rod 12. A pressing block 6 is fixedly installed on one side of the outer wall of the top post 5. The top post 5 is slidably installed inside the second hole 4. The semi-circular blade 15 is slidably installed inside the cutting cavity 14. The connecting rod 12 and the top plate 16 are both slidably installed inside the sliding cavity 13. One end of the outer wall of the spring 11 is fixedly connected to one side of the inner wall of the sliding cavity 13. The other end of the outer wall of the spring 11 is fixedly connected to one end of the outer wall of the top plate 16.

[0021] Specifically, the spring 11 continuously applies a force to the top plate 16, ensuring that the connecting rod 12 remains inside the sliding cavity 13, while simultaneously positioning the semi-circular blade 15 at the rightmost end of the cutting cavity 14, thus not affecting the insertion process of the latch 2. Inserting the top post 5 into the second hole 4 and pressing the pressing block 6 applies force to the top plate 16, thereby pushing the semi-circular blade 15 to cut the latch 2. The design of separating the top post 5 from the top plate 16 prevents accidental cutting of the latch 2 due to pressing.

[0022] Reference Figure 6 , Figure 7 The rotating wheel 10 has a rotating shaft 9 fixedly installed inside. Multiple irregular blades 17 are fixedly installed around the outer wall of the rotating wheel 10 at equal intervals. The rotating shaft 9 is rotatably installed on the inner wall of the front and rear ends of the imprint cavity 8 through bearings.

[0023] Specifically, by rotating the rotating wheel 10, multiple irregularly shaped blades 17 can be rotated to leave marks on the outer wall of the latch 2. The blades of the multiple irregularly shaped blades 17 have different shapes, which can leave marks of different shapes on the outer surface of the latch 2.

[0024] Working principle: When using this device, the latch 2 is inserted into the first hole 3. The rotating wheel 10 inside rotates under the drive of the latch 2, while multiple irregularly shaped blades 17 leave marks on the outer periphery of the latch 2 under the pressure of the latch 2. If no knife or scissors are available when using this device, the top post 5 can be inserted into the second hole 4, and the pressing block 6 can be pressed to make the semi-circular blade 15 cut off the latch 2.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A one-time anti-counterfeiting lock structure for packaging bags, comprising a lock body (1), a top post (5), a semi-circular blade (15), and a rotating wheel (10), characterized in that: A latch (2) is fixedly provided on the upper end face of the lock body (1) near the outer wall. A first hole (3) is opened on the other side of the upper end face of the lock body (1) near the outer wall. A plastic claw (7) is fixedly provided in the middle of the first hole (3). A cutting cavity (14) is opened on the upper periphery of the first hole (3) inside the lock body (1). A sliding cavity (13) is opened on the other side of the outer wall of the cutting cavity (14) inside the lock body (1). A second hole (4) is opened on the other side of the outer wall of the lock body (1). 1) An imprint cavity (8) is provided on the outer side of the first hole (3). A connecting rod (12) is fixedly provided on the outer side of the semi-circular blade (15). A top plate (16) is fixedly provided on the outer side of the connecting rod (12). A spring (11) is sleeved on the outer side of the connecting rod (12). A rotating shaft (9) is fixedly provided inside the rotating wheel (10). Multiple irregular blades (17) are fixedly provided around the outer wall of the rotating wheel (10) at equal intervals. A pressing block (6) is fixedly provided on the outer side of the top column (5).

2. The anti-counterfeiting one-time locking structure for a packaging bag according to claim 1, characterized in that: The second hole (4) is fixedly connected to the sliding cavity (13), and the top column (5) is slidably disposed inside the second hole (4).

3. The anti-counterfeiting one-time locking structure for a packaging bag according to claim 1, characterized in that: The locking tongue (2) is slidably disposed inside the first hole (3), and the locking tongue (2) is engaged with the plastic claw (7).

4. The anti-counterfeiting one-time locking structure for a packaging bag according to claim 1, characterized in that: The semi-circular blade (15) is slidably disposed inside the cutting cavity (14), and the connecting rod (12) and the top plate (16) are both slidably disposed inside the sliding cavity (13).

5. The anti-counterfeiting one-time locking structure for a packaging bag according to claim 1, characterized in that: One end of the outer wall of the spring (11) is fixedly connected to the inner wall of one side of the sliding cavity (13), and the other end of the outer wall of the spring (11) is fixedly connected to one end of the outer wall of the top plate (16).

6. The anti-counterfeiting one-time locking structure for a packaging bag according to claim 1, characterized in that: The rotating shaft (9) is rotatably mounted on the inner wall of the front and rear ends of the imprint cavity (8) via a bearing.

7. The anti-counterfeiting one-time locking structure for a packaging bag according to claim 1, characterized in that: The lock body (1), lock tongue (2) and plastic claw (7) are all made of polyamide fiber, and the semi-circular blade (15) and irregular blade (17) are both made of stainless steel.

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