Anti-theft device

Abstract

This utility model relates to an anti-theft device for bottled or cup-packaged products, comprising: a housing; a locking strap assembly forming an annular structure for fitting around the outer periphery of the product, one end of the locking strap assembly being connected to the housing, and the other end slidably passing through the housing to adjust the size of the annular structure; a lock cylinder assembly disposed within the housing, which, in the locked state, cooperates with the locking strap assembly to restrict the sliding of the locking strap assembly relative to the housing, and in the unlocked state, separates from the locking strap assembly; an unlocking component disposed within the housing and capable of driving the lock cylinder assembly from the locked state to the unlocked state; and an electronic component disposed within the housing, comprising a circuit board and a frequency element. When someone removes the product without authorization, the frequency element triggers an alarm system, enabling automatic monitoring of departure; the use of a circuit board to control the unlocking component to drive the lock cylinder assembly for unlocking prevents unauthorized unlocking of the lock cylinder assembly with a magnet, thus improving the anti-theft reliability of the device.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft equipment technology, and in particular to an anti-theft device. Background Technology

[0002] Shopping malls and supermarkets face the risk of theft of high-value bottled or cup-shaped products, resulting in financial losses. Therefore, some shopping malls install anti-theft devices on these products, which contain lock cylinders and frequency sensors. The lock cylinder prevents the anti-theft device from being removed from the product without authorization, and the frequency sensor triggers an alarm system when someone takes the product away without permission.

[0003] Existing anti-theft devices typically use magnets to attract the lock cylinder from the outside to unlock it. However, magnets are relatively easy to obtain, and there is still a possibility that someone may use a magnet to unlock the lock without authorization, so the anti-theft effect is limited. Utility Model Content

[0004] Therefore, it is necessary to provide an anti-theft device to address the above problems and improve the reliability of anti-theft measures.

[0005] This utility model provides an anti-theft device for bottled or cup-packaged products, comprising: a housing; a locking strap assembly forming an annular structure for fitting around the outer periphery of the product, one end of the locking strap assembly being connected to the housing and the other end slidably passing through the housing to adjust the size of the annular structure; a lock cylinder assembly disposed within the housing, having a locked state and an unlocked state, wherein in the locked state, the lock cylinder assembly cooperates with the locking strap assembly to restrict the sliding of the locking strap assembly relative to the housing, and in the unlocked state, the lock cylinder assembly is separated from the locking strap assembly; an unlocking component disposed within the housing and capable of driving the lock cylinder assembly from the locked state to the unlocked state; and an electronic component disposed within the housing, the electronic component including a circuit board and a frequency element, wherein the unlocking component and the frequency element are both electrically connected to the circuit board.

[0006] In the aforementioned anti-theft device, during installation, the ring-shaped structure formed by the lock strap assembly is fitted around the outer perimeter of the product. The end of the lock strap assembly that passes through the housing slides relative to the housing, causing the ring-shaped structure to tighten around the outer perimeter of the product. Then, the lock cylinder assembly is moved to the locked state to restrict the sliding of the lock strap assembly relative to the housing. At this point, the lock strap assembly cannot be directly removed from the product. If someone takes the product away without authorization, the frequency element will trigger the alarm system to remind the user, achieving automatic monitoring of departure. During disassembly, the controller first sends an unlocking signal to the circuit board. The circuit board controls the unlocking component to drive the lock cylinder assembly from the locked state to the unlocked state. Then, the end of the lock strap assembly that passes through the housing slides relative to the housing, causing the ring-shaped structure to loosen and be removed from the product. Unlocking by using the circuit board to control the unlocking component to drive the lock cylinder assembly can prevent unauthorized unlocking of the lock cylinder assembly with a magnet, thereby improving the anti-theft reliability of the device.

[0007] In one embodiment, the lock belt assembly includes a lock belt body and a plurality of first locking teeth, with each first locking tooth sequentially disposed on the outer wall of the lock belt body along the length direction of the lock belt body; the lock cylinder assembly includes a second locking tooth capable of engaging with the first locking teeth, the second locking tooth being capable of sliding relative to the housing along a first preset direction to approach / move away from the first locking teeth, so as to switch between the locked state and the unlocked state.

[0008] This design ensures the reliability of the lock cylinder assembly in the locked state and reduces the possibility of accidental unlocking and forced entry. Multiple first and second locking teeth work together to lock the ring structure at different sizes, allowing the anti-theft device to be adapted to products of different sizes and improving compatibility.

[0009] In one embodiment, the lock cylinder assembly further includes a pressing member connected to the second lock tooth and capable of sliding relative to the housing along the first preset direction toward / away from the first lock tooth, with at least a portion of the pressing member exposed in the housing.

[0010] With this design, users can control the sliding of the second locking tooth by pressing the pressing part outside the housing, so that the second locking tooth engages with the first locking tooth. The operation is simple and convenient, and it can be operated with one hand.

[0011] In one embodiment, the lock cylinder assembly further includes a plug that can slide relative to the housing in a second preset direction. The pressing member has a lock hole. In the locked state, the plug can be inserted into the lock hole to restrict the pressing member from sliding away from the first lock tooth. The unlocking assembly can drive the plug to slide out of the lock hole.

[0012] With this configuration, when the connector is inserted into the lock hole, the pressing part cannot slide relative to the housing, thereby preventing the pressing part from accidentally sliding and causing the second locking tooth to separate from the first locking tooth, thus improving the reliability of the lock cylinder assembly in the locked state.

[0013] In one embodiment, the lock cylinder assembly further includes a first elastic member disposed between the pressing member and the housing, the first elastic member being capable of applying a force to the pressing member to move it away from the first locking tooth; and / or, the lock cylinder assembly further includes a second elastic member disposed between the plug and the housing, the second elastic member being capable of applying a force to the plug to insert it into the lock hole.

[0014] With this configuration, the pressing and inserting parts can slide automatically under the elastic force of the first and second elastic elements, thereby simplifying the operation.

[0015] In one embodiment, the unlocking component includes a drive member and an eccentric shaft connected to the output end of the drive member, and the connector is provided with a mating hole that mates with the eccentric shaft.

[0016] With this setup, the unlocking component has a simple structure, high unlocking efficiency, and occupies less space.

[0017] In one embodiment, the electronic component further includes a microswitch electrically connected to the circuit board, the microswitch including a locking switch and an unlocking switch; in the locked state, the connector triggers the locking switch, and in the unlocked state, the connector triggers the unlocking switch.

[0018] With this configuration, the locking or unlocking switch is triggered synchronously by sliding the connector, and a status signal is transmitted to the circuit board via a micro switch, thereby enabling monitoring of the status of the lock cylinder assembly.

[0019] In one embodiment, the first locking tooth includes a first guide surface and a first locking surface that are opposite to each other, and the second locking tooth includes a second guide surface and a second locking surface that are opposite to each other. The second guide surface can slide with the first guide surface to allow the second locking tooth to slide away from the first locking tooth, and the second locking surface can abut against the first locking surface to restrict the sliding of the lock band assembly relative to the housing. The lock cylinder assembly further includes a third elastic member disposed between the second locking tooth and the housing. The third elastic member can apply a force to the second locking tooth to move it closer to the first locking tooth.

[0020] This configuration enables one-way locking of the locking belt assembly, facilitating control of the tightening of the ring structure and simplifying the operation process.

[0021] In one embodiment, the anti-theft device further includes a protective cover detachably disposed on the housing for covering the cover of the product.

[0022] This design prevents unauthorized opening of the product cover, thus providing physical protection for the product and improving damage prevention.

[0023] In one embodiment, the locking strap assembly includes a locking strap body and at least one anti-detachment tooth, the anti-detachment tooth being disposed on the inner wall of the locking strap body; and / or, the locking strap assembly includes a locking strap body and at least one handle, the handle being disposed on the outer wall of the locking strap body, one of the handles being disposed at one end of the locking strap body that passes through the housing; and / or, the locking strap assembly includes a locking strap body and a spring-loaded member, the spring-loaded member being disposed within the locking strap body; and / or, the electronic component further includes a battery and / or a buzzer electrically connected to the circuit board.

[0024] This design enhances the stability and reliability of the lock band assembly when it is tightly fastened to the outer periphery of the product, preventing it from being forcibly disassembled. The handle allows users to easily adjust the size of the ring structure. When the lock cylinder assembly is in the unlocked state, the lock band assembly automatically relaxes under the elastic force of the return spring, simplifying the operation and facilitating the user's removal of the anti-theft device. The battery powers the internal electronic components, eliminating the need for external cables and power supplies and ensuring a neat appearance. When the anti-theft device malfunctions, the circuit board can control the buzzer to emit an alarm sound. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective view of an anti-theft device and product according to one embodiment of the present utility model.

[0027] Figure 2 Exploded view of the anti-theft device provided by this utility model;

[0028] Figure 3 Provided by this utility model Figure 2 A partial 3D view;

[0029] Figure 4 Provided by this utility model Figure 3 Exploded view;

[0030] Figure 5Provided by this utility model Figure 4 Local magnification Figure 1 ;

[0031] Figure 6 Provided by this utility model Figure 4 Local magnification Figure 2 ;

[0032] Figure 7 A perspective view of the unlocking component provided by this utility model;

[0033] Figure 8 Exploded view of the electronic component provided by this utility model;

[0034] Figure 9 Unlocking and locking diagram of the anti-theft device provided by this utility model Figure 1 ;

[0035] Figure 10 Unlocking and locking diagram of the anti-theft device provided by this utility model Figure 2 ;

[0036] Figure 11 Unlocking and locking diagram of the anti-theft device provided by this utility model Figure 3 ;

[0037] Figure 12 A schematic diagram illustrating the unlocking process of the anti-theft device provided by this utility model.

[0038] Reference numerals: 1. Housing; 11. First housing; 111. Second clearance hole; 112. Sound outlet; 12. Second housing; 13. Battery cover; 14. First bracket; 141. First clearance hole; 15. Second bracket; 151. Slide groove; 16. Third bracket; 161. Third clearance hole; 17. Fourth bracket; 18. Through hole; 2. Locking belt assembly; 21. Locking belt body; 22. First locking tooth; 221. First guide surface; 222. First locking surface; 23. Anti-disengagement tooth; 24. Handle; 25. Rebound element; 3. Lock cylinder assembly; 31. Second locking tooth; 311. Second guide surface 312. Second locking surface; 313. Limiting groove; 32. Pressing element; 321. Locking hole; 322. Limiting boss; 33. Connecting element; 331. Mating hole; 332. Connecting part; 333. Lever; 334. Slider; 34. First elastic element; 35. Second elastic element; 36. Third elastic element; 4. Unlocking component; 41. Driving element; 42. Eccentric shaft; 5. Electronic component; 51. Circuit board; 52. Frequency element; 53. Micro switch; 531. Locking switch; 532. Unlocking switch; 54. Battery; 55. Buzzer; 6. Protective cover; 200. Product. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In 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 and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates 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 indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0044] Shopping malls and supermarkets face the risk of theft of high-value bottled or cup-shaped products, resulting in financial losses. Therefore, some shopping malls install anti-theft devices on these products, which contain lock cylinders and frequency sensors. The lock cylinder prevents the anti-theft device from being removed from the product without authorization, and the frequency sensor triggers the alarm system when someone removes the product without permission. Existing anti-theft devices typically use magnets to attract the lock cylinder from the outside to unlock it. However, magnets are relatively easy to obtain, and unauthorized use of magnets to unlock the product still exists, limiting the effectiveness of the anti-theft measures.

[0045] To solve the above problems, such as Figures 1 to 12 As shown, this utility model provides an anti-theft device to improve the reliability of anti-theft measures.

[0046] like Figures 1 to 2 As shown, specifically, the anti-theft device is used for bottled or cup-packaged products 200. The anti-theft device includes a housing 1, a locking strap assembly 2, a lock cylinder assembly 3, an unlocking assembly 4, and an electronic component 5. Specifically, the locking strap assembly 2 forms an annular structure for fitting around the outer periphery of the product 200. One end of the locking strap assembly 2 is connected to the housing 1, and the other end is slidably inserted through the housing 1 to adjust the size of the annular structure. The lock cylinder assembly 3 is located inside the housing 1 and has a locked state and an unlocked state. In the locked state, the lock cylinder assembly 3 cooperates with the locking strap assembly 2 to restrict the sliding of the locking strap assembly 2 relative to the housing 1. In the unlocked state, the lock cylinder assembly 3 is separated from the locking strap assembly 2. The unlocking assembly 4 is located inside the housing 1 and can drive the lock cylinder assembly 3 from the locked state to the unlocked state. The electronic component 5 is located inside the housing 1 and includes a circuit board 51 and a frequency element 52. The unlocking assembly 4 and the frequency element 52 are both electrically connected to the circuit board 51.

[0047] The circuit board 51 is used to communicate with a controller, which can be a remote control, computer, or other device, to send an unlock signal to the circuit board 51 or to receive status signals of the anti-theft device from the circuit board 51. The frequency element 52 is used to communicate with an alarm system, which can be a radio frequency identification anti-theft system, an acousto-magnetic anti-theft system, or other systems. The frequency element 52 can be a magnetic induction rod, which can be identified by the alarm system.

[0048] In the anti-theft device provided in this embodiment, during installation, the annular structure formed by the lock strap assembly 2 is fitted around the outer periphery of the product 200. The end of the lock strap assembly 2 that passes through the housing 1 is controlled to slide relative to the housing 1, so that the annular structure is tightened to fit tightly around the outer periphery of the product 200. Then, the lock cylinder assembly 3 is controlled to move to the locked state to restrict the sliding of the lock strap assembly 2 relative to the housing 1. At this time, the lock strap assembly 2 cannot be directly removed from the product 200. When someone takes the product 200 away without authorization, the frequency element 52 will trigger the alarm system to remind the user and realize automatic monitoring of departure. During disassembly, the controller first sends an unlocking signal to the circuit board 51. The circuit board 51 controls the unlocking assembly 4 to drive the lock cylinder assembly 3 from the locked state to the unlocked state. Then, the end of the lock strap assembly 2 that passes through the housing 1 is controlled to slide relative to the housing 1, so that the annular structure is relaxed and can be removed from the product 200. The method of unlocking by the circuit board 51 controlling the unlocking assembly 4 to drive the lock cylinder assembly 3 can prevent someone from unlocking the lock cylinder assembly 3 with a magnet without authorization, thereby improving the anti-theft reliability of the anti-theft device.

[0049] like Figure 2 As shown, the housing 1 includes a first housing 11 and a second housing 12 that enclose an installation space. The lock cylinder assembly 3, the unlocking assembly 4, and the electronic assembly 5 are all disposed within the installation space to protect the internal components through the housing 1, while also facilitating the disassembly and maintenance of the internal components. The first housing 11 and the second housing 12 can be fixedly connected by fasteners such as screws and bolts, and the operating ends of the fasteners are preferably facing the product 200 to prevent unauthorized disassembly.

[0050] like Figure 10 As shown, the housing 1 also has a through hole 18 communicating with the installation space. The through hole 18 extends along the ±Z direction, and one end of the locking strap assembly 2 is slidably inserted into the through hole 18 along the ±Z direction to adjust the size of the annular structure. In the unlocked state, the end of the locking strap assembly 2 that is slidably inserted into the through hole 18 can be completely disengaged from the through hole 18, or it can always be inserted into the through hole 18.

[0051] In the illustrated embodiment, the housing 1 is L-shaped. After the anti-theft device is installed on the product 200, part of the housing 1 is located on the side of the product 200, and the lock cylinder assembly 3 and unlocking assembly 4 are located inside the housing 1 located on the side of the product 200; part of the housing 1 is located on the top of the product 200, and the electronic component 5 is located inside the housing 1 located on the top of the product 200. This reduces the overall height of the anti-theft device, avoids occupying too much space, and improves aesthetics. At the same time, the housing 1 located on the top of the product 200 also reduces the possibility of someone unauthorizedly opening the cover of the product 200. Of course, in other embodiments, the housing 1 may only include the portion located on the side of the product 200, or the housing 1 may be arc-shaped and wrap around the perimeter of the product 200. The specific shape and size of the housing 1 can be adjusted according to anti-theft requirements and the shape and size of the product 200. This embodiment of the present invention does not impose specific limitations here.

[0052] like Figures 1 to 2 As shown, the anti-theft device also includes a protective cover 6 detachably mounted on the housing 1, which covers the cover of the product 200. The protective cover 6 prevents unauthorized opening of the product 200 cover, thus providing physical protection for the product 200 and improving damage prevention. Furthermore, the protective cover 6 is detachable, allowing users to choose whether to install it based on their actual anti-theft needs, improving compatibility. In the illustrated embodiment, the protective cover 6 is detachably mounted on the bottom of the housing 1 located at the top of the product 200. The protective cover 6 and the housing 1 can be fixedly connected by fasteners such as screws and bolts. Of course, in other embodiments, the protective cover 6 can also be detachably mounted on the side wall of the housing 1 located on the side of the product 200.

[0053] like Figures 1 to 2 As shown, in one embodiment, the electronic component 5 further includes a battery 54 electrically connected to the circuit board 51. The battery 54 powers internal electronic components such as the circuit board 51, frequency element 52, and unlocking component 4, eliminating the need for external cables and power supplies and ensuring a neat appearance. In the illustrated embodiment, the bottom of the housing 1 located at the top of the product 200 has a battery cavity communicating with the installation space. The housing 1 also includes a battery cover 13 that detachably covers the opening of the battery cavity, allowing the user to easily install or replace the battery 54 without disassembling the first housing 11 and the second housing 12. This operation is simple and convenient, and the battery cover 13 is not exposed, further ensuring a neat appearance. The battery cover 13 can be fixed by snap-fit, screw-fit, magnetic attraction, fasteners, or other methods. Of course, in other embodiments, the battery 54 can also be installed in other locations within the housing 1, or an external cable and power supply can be used to power the electronic component 5 and the unlocking component 4.

[0054] like Figure 3 , Figure 4 and Figure 10 As shown, in one embodiment, the lock belt assembly 2 includes a lock belt body 21 and a plurality of first locking teeth 22. Along the length of the lock belt body 21, each first locking tooth 22 is sequentially disposed on the outer wall of the lock belt body 21. The lock cylinder assembly 3 includes a second locking tooth 31 capable of engaging with the first locking teeth 22. The second locking tooth 31 can slide relative to the housing 1 along a first preset direction, approaching or moving away from the first locking teeth 22, to switch between a locked state and an unlocked state. The first preset direction is the ±X direction shown in the figure, and the X direction is preferably a tangent perpendicular to the Z direction. Locking by engaging the first locking teeth 22 and the second locking teeth 31 ensures the reliability of the lock cylinder assembly 3 in the locked state and reduces the possibility of accidental unlocking and forced entry. Furthermore, the cooperation of the plurality of first locking teeth 22 and the second locking teeth 31 enables the ring structure to lock at different sizes, allowing the anti-theft device to adapt to products 200 of different sizes, improving compatibility. The number of second locking teeth 31 can also be multiple, and all second locking teeth 31 can simultaneously engage with the first locking teeth 22 to increase the contact area between the first locking teeth 22 and the second locking teeth 31, thereby further improving the reliability of the lock cylinder assembly 3 in the locked state.

[0055] like Figure 5 As shown, specifically, the housing 1 also includes a first bracket 14 fixed to the inner wall of the installation space by fasteners such as screws and bolts. The first bracket 14 is provided with a first clearance hole 141 extending in the ±X direction. The second locking tooth 31 is slidably provided in the first clearance hole 141 so as to support the second locking tooth 31 and limit the sliding direction of the second locking tooth 31 through the first bracket 14.

[0056] Of course, in other embodiments, the lock cylinder assembly 3 and the lock belt assembly 2 can also be locked by means of plugging or snapping. For example, multiple insertion holes are provided along the length direction of the lock belt body 21, and the lock cylinder assembly 3 includes a pin. The pin can slide relative to the housing 1 in a first preset direction to approach or move away from the lock belt body 21 in order to insert or withdraw from the insertion hole.

[0057] like Figure 10As shown, in one embodiment, the first locking tooth 22 includes a first guide surface 221 and a first locking surface 222 that are opposite to each other, and the second locking tooth 31 includes a second guide surface 311 and a second locking surface 312 that are opposite to each other. The second guide surface 311 can slide with the first guide surface 221 to allow the second locking tooth 31 to slide away from the first locking tooth 22, and the second locking surface 312 can abut against the first locking surface 222 to restrict the sliding of the lock belt assembly 2 relative to the housing 1. The lock cylinder assembly 3 also includes a third elastic member 36 disposed between the second locking tooth 31 and the housing 1. The third elastic member 36 can apply a force to the second locking tooth 31 to move it closer to the first locking tooth 22. Specifically, along the +Z direction, the first guide surface 221 and the second guide surface 311 are inclined towards the +X direction; the first locking surface 222 is perpendicular to the ±Z direction, and the second locking surface 312 is parallel to the ±X direction.

[0058] When a force in the +Z direction is applied to the end of the locking strap assembly 2 that passes through the through hole 18, the first guide surface 221 and the second guide surface 311 slide together, causing the second locking tooth 31 to slide in the -X direction. The second locking tooth 31 separates from the first locking tooth 22, and the third elastic element 36 is compressed, allowing the end of the locking strap assembly 2 that passes through the through hole 18 to slide in the +Z direction. When the second locking tooth 31 corresponds to the next first locking tooth 22, the second locking tooth 31 automatically slides in the +X direction under the elastic force of the third elastic element 36, causing the second locking tooth 31 to engage with the first locking tooth 22 again. When a force in the -Z direction is applied to the end of the locking strap assembly 2 that passes through the through hole 18, the first locking surface 222 and the second locking surface 312 abut against each other to restrict the sliding of the end of the locking strap assembly 2 that passes through the through hole 18 in the -Z direction. In this way, unidirectional locking of the locking strap assembly 2 is achieved, which facilitates control of the tightening of the annular structure and simplifies the operation steps. Of course, in other embodiments, the first locking tooth 22 and the second locking tooth 31 may also have locking surfaces on both sides to achieve bidirectional locking.

[0059] like Figures 1 to 3 As shown, in one embodiment, the lock cylinder assembly 3 further includes a pressing member 32, which is connected to the second locking tooth 31 and can slide relative to the housing 1 along a first preset direction to approach or move away from the first locking tooth 22. At least a portion of the pressing member 32 is exposed outside the housing 1. Thus, the user can control the second locking tooth 31 to slide in the +X direction by pressing the pressing member 32 outside the housing 1, so that the second locking tooth 31 engages with the first locking tooth 22. The operation is simple and convenient, and can be performed with one hand. Simultaneously, the user can also determine the state of the second locking tooth 31 by the position of the pressing member 32. Of course, in other embodiments, the unlocking assembly 4 can also drive the second locking tooth 31 to slide in the +X direction to engage with the first locking tooth 22.

[0060] like Figure 2 and Figure 9As shown, specifically, the first shell 11 is provided with a second clearance hole 111 extending in the ±X direction. Part of the pressing member 32 extends out of the shell 1 through the second clearance hole 111 to support the pressing member 32 through the first shell 11 and restrict the sliding direction of the pressing member 32.

[0061] like Figure 5 and Figure 10 As shown in the illustrated embodiment, the two ends of the third elastic member 36 abut against the second locking tooth 31 and the pressing member 32, respectively. When the pressing member 32 slides in the +X direction, the second locking tooth 31 slides in the +X direction closer to the first locking tooth 22 under the combined action of the pressing member 32 and the third elastic member 36. Furthermore, in the locked state, the second locking tooth 31 can still slide a small distance relative to the pressing member 32 along the ±X direction. When the pressing member 32 slides in the +X direction, the second locking tooth 31 slides away from the first locking tooth 22 in the -X direction under the combined action of the pressing member 32 and the third elastic member 36. One of the second locking tooth 31 and the pressing member 32 is provided with a limiting groove 313 extending in the ±X direction, and the other is provided with a limiting boss 322 slidably disposed within the limiting groove 313, to limit the sliding stroke of the second locking tooth 31 relative to the pressing member 32. The third elastic element 36 can be a spring, silicone rubber or other elastic component. The inner wall of the limiting groove 313 and the limiting boss 322 are provided with limiting posts for limiting the third elastic element 36.

[0062] like Figures 4 to 6 As shown, the lock cylinder assembly 3 also includes a connector 33 that can slide relative to the housing 1 along a second preset direction. The pressing member 32 has a lock hole 321. In the locked state, the connector 33 can be inserted into the lock hole 321 to restrict the pressing member 32 from sliding away from the first locking tooth 22. The unlocking assembly 4 can drive the connector 33 to slide out of the lock hole 321. The second preset direction is the ±Y direction shown in the figure. The Y direction is not parallel to the X direction, and preferably they are perpendicular to each other. Pressing the pressing member 32 controls the second locking tooth 31 to slide in the +X direction. After the second locking tooth 31 engages with the first locking tooth 22, the connector 33 can be controlled to slide in the +Y direction to be inserted into the lock hole 321. At this time, the pressing member 32 cannot slide relative to the housing 1 along the ±X direction, thereby preventing the pressing member 32 from accidentally sliding in the -X direction and causing the second locking tooth 31 to separate from the first locking tooth 22. This further improves the reliability of the lock cylinder assembly 3 in the locked state. During disassembly, the unlocking component 4 drives the connector 33 to slide out of the lock hole 321 in the -Y direction, so that the pressing component 32 can slide to unlock in the -X direction.

[0063] Specifically, the housing 1 also includes a second bracket 15 fixed to the inner wall of the installation space by fasteners such as screws and bolts. The second bracket 15 is provided with a sliding groove 151 extending in the ±Y direction. The plug-in 33 includes a plug portion 332 for plugging into the lock hole 321 and a slider 334 for sliding into the sliding groove 151, so as to support the plug-in 33 by the second bracket 15 and limit the sliding direction and stroke of the plug-in 33. At the same time, the unlocking component 4 can also be fixed to the second bracket 15 by fasteners such as screws and bolts.

[0064] like Figure 5 and Figure 9 As shown, in one embodiment, the lock cylinder assembly 3 further includes a first elastic member 34 disposed between the pressing member 32 and the housing 1. The first elastic member 34 can apply a force to the pressing member 32, causing it to move away from the first locking tooth 22. When the pressing member 32 slides in the +X direction, the first elastic member 34 is compressed. When the plug 33 is inserted into the lock hole 321, it can stabilize the pressing member 32 in the locked state. After the plug 33 is removed from the lock hole 321, the pressing member 32 can automatically slide in the -X direction under the elastic force of the first elastic member 34, thereby simplifying the operation steps. The first elastic member 34 can be a spring, silicone rubber, or other elastic element. Both the first bracket 14 and the pressing member 32 are provided with limiting posts for limiting the first elastic member 34. Of course, in other embodiments, the user can also manually control the pressing member 32 to slide in the -X direction.

[0065] like Figure 6 and Figure 11 As shown, the lock cylinder assembly 3 also includes a second elastic member 35 disposed between the plug-in member 33 and the housing 1. The second elastic member 35 can apply a force to the plug-in member 33 to insert it into the lock hole 321. When the pressing member 32 slides in the +X direction to the position where the plug-in part 332 is aligned with the lock hole 321, the plug-in member 33 can automatically slide in the +Y direction under the action of the second elastic member 35, so that the plug-in part 332 is inserted into the lock hole 321, thereby simplifying the operation steps. The second elastic member 35 can be a spring, silicone rubber, or other elastic element. Both the second bracket 15 and the plug-in member 33 are provided with limiting posts for limiting the second elastic member 35. Of course, in other embodiments, the plug-in member 33 can also be controlled to slide in the +Y direction by the unlocking assembly 4.

[0066] like Figure 7 and Figure 12 As shown, in one embodiment, the unlocking component 4 includes a drive member 41 and an eccentric shaft 42 connected to the output end of the drive member 41, and the connector 33 is provided with a mating hole 331 that mates with the eccentric shaft 42. Figure 12As shown in a, b, and c, during unlocking, the driving component 41 drives the eccentric shaft 42 to rotate. The eccentric shaft 42 engages with the mating hole 331, causing the insertion part 33 to move in the -Y direction. The insertion part 332 disengages from the lock hole 321, the second elastic element 35 is compressed, and the pressing part 32 slides in the -X direction under the elastic force of the first elastic element 34. Figure 12 As shown in c, d, and e, after unlocking, the driving component 41 can continue to drive the eccentric shaft 42 to rotate. Under the elastic force of the second elastic component 35, the plug-in component 33 slides in the +Y direction until the plug-in portion 332 abuts against the pressing component 32. At this time, the eccentric shaft 42 separates from the inner wall of the mating hole 331, avoiding interference with subsequent operations. Alternatively, the eccentric shaft 42 first limits the plug-in component 33 to the position where it is disengaged from the lock hole 321. After the pressing component 32 slides in the +X direction until the lock hole 321 is aligned with the plug-in portion 332, the plug-in component 33 is then driven to slide in the +Y direction. In this way, the unlocking component 4 has a simple structure, high unlocking efficiency, and occupies less space. Of course, in other embodiments, the unlocking component 4 can also be a linear motor, hydraulic lever, cylinder, gear transmission mechanism, or other components that can drive the plug-in component 33 to move in the ±Y direction. This embodiment of the present invention does not impose specific limitations here.

[0067] like Figure 6 and Figure 11 As shown, electronic component 5 also includes a micro switch 53 electrically connected to circuit board 51. Micro switch 53 includes a locking switch 531 and an unlocking switch 532. In the locked state, connector 33 triggers the locking switch 531; in the unlocked state, connector 33 triggers the unlocking switch 532. Connector 33 can synchronously trigger either the locking switch 531 or the unlocking switch 532 by sliding, and transmit a status signal to circuit board 51 via micro switch 53 to monitor the status of lock cylinder assembly 3. When connector 33 triggers the locking switch 531, circuit board 51 activates off-site monitoring. If someone removes product 200 without authorization, frequency element 52 will trigger an alarm system. When connector 33 triggers the unlocking switch 532, circuit board 51 can deactivate off-site monitoring. If someone damages lock cylinder assembly 3 without authorization, connector 33 will neither trigger the locking switch 531 nor the unlocking switch 532, and circuit board 51 will send an alarm signal to the controller to alert the user, thus achieving damage monitoring.

[0068] Specifically, the housing 1 also includes a third bracket 16 that is fixed to the inner wall of the installation space by fasteners such as screws and bolts. The micro switch 53 can be fixed to the third bracket 16 by fasteners such as screws and bolts. The third bracket 16 is provided with a third clearance hole 161. The connector 33 also includes a lever 333, which passes through the third clearance hole 161 and is used to trigger the micro switch 53.

[0069] like Figure 1 , Figure 2 and Figure 8 As shown, electronic component 5 also includes a buzzer 55 electrically connected to circuit board 51. When connector 33 neither triggers locking switch 531 nor unlocking switch 532, circuit board 51 can also control buzzer 55 to emit an alarm sound to improve the warning effect. Alternatively, when the anti-theft device malfunctions in other ways, such as frequency element 52 triggering the alarm system, circuit board 51 can also control buzzer 55 to emit an alarm sound. Specifically, housing 1 also includes a fourth bracket 17 fixed to the inner wall of the installation space by screws, bolts, or other fasteners. Circuit board 51 and frequency element 52 can both be fixed to the fourth bracket 17 by screws, bolts, or other fasteners. Buzzer 55 is mounted on circuit board 51. The first housing 11 also has a sound outlet 112 corresponding to buzzer 55 to ensure the sound output effect of the alarm sound.

[0070] like Figure 3 As shown, the locking strap assembly 2 also includes at least one anti-detachment tooth 23, which is disposed on the inner wall of the locking strap body 21. The anti-detachment tooth 23 can improve the stability and reliability of the locking strap assembly 2 when it is tightly clamped to the outer periphery of the product 200, and prevent the locking strap assembly 2 from being forcibly disassembled. In the illustrated embodiment, multiple anti-detachment teeth 23 are arranged at intervals along the length direction of the locking strap body 21. Of course, in other embodiments, multiple anti-detachment teeth 23 can also be arranged in multiple rows or columns, or the inner wall of the locking strap body 21 can be made into a rough surface, as long as it can ensure that the locking strap assembly 2 can be stably and reliably clamped to the outer periphery of the product 200. This embodiment of the present invention does not impose specific limitations here.

[0071] like Figure 4 and Figure 10 As shown, the locking strap assembly 2 also includes at least one handle 24, which is disposed on the outer wall of the locking strap body 21. One handle 24 is located at one end of the locking strap body 21 that passes through the housing 1. This allows the user to easily control the end of the locking strap assembly 2 that passes through the through hole 18 to slide along the ±Z direction, thereby adjusting the size of the ring structure. In the illustrated embodiment, there are two handles 24, with the other handle located in the middle of the locking strap body 21. This allows the user to place their index finger and thumb on the two handles 24 respectively and pinch them together, achieving single-handed adjustment of the ring structure's size. Of course, in other embodiments, the number of handles 24 can be one, three, or more, depending on the size of the anti-theft device and user habits. This embodiment of the present invention does not impose specific limitations.

[0072] like Figure 4As shown, the lock strap assembly 2 also includes a spring-loaded member 25, which is inserted into the lock strap body 21. The spring-loaded member 25 is elastic; when the lock cylinder assembly 3 is in the unlocked state, the lock strap assembly 2 can automatically relax under the elastic force of the spring-loaded member 25, simplifying the operation and facilitating the user's removal of the anti-theft device. The spring-loaded member 25 can be made of an elastic material such as a flexible steel sheet.

[0073] In the illustrated embodiment, during installation, the annular structure formed by the locking strap assembly 2 is fitted onto the outer periphery of the product 200, and the protective cover 6 is placed over the cover of the product 200; pressing down the pressing member 32 compresses the first elastic member 34; the third elastic member 36 pushes the second locking tooth 31 to slide until it engages with the first locking tooth 22; at the same time, the lock hole 321 is aligned with the insertion part 332, the second elastic member 35 pushes the insertion part 332 into the lock hole 321, locking the pressing member 32, and the lever 333 triggers the locking switch 531; pinching the handles 24 on both sides of the locking strap assembly 2 tightens the annular structure to fit snugly around the outer periphery of the product 200. When unlocking, the controller sends an unlocking signal to the circuit board 51, and the circuit board 51 controls the drive component 41 to drive the eccentric shaft 42; the eccentric shaft 42 drives the plug 33 to exit the lock hole 321 through the mating hole 331, the second elastic element 35 is compressed, and the lever 333 triggers the unlocking switch 532; the first elastic element 34 pushes the pressing element 32, so that the second locking tooth 31 disengages from the first locking tooth 22; the lock band assembly 2 is automatically relaxed under the action of the return spring 25, and the anti-theft device is removed.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An anti-theft device for bottled or cup-packaged products (200), characterized in that, include: Shell (1); A locking strap assembly (2) is formed into an annular structure for fitting around the outer periphery of the product (200). One end of the locking strap assembly (2) is connected to the housing (1), and the other end is slidably inserted through the housing (1) to adjust the size of the annular structure. The lock cylinder assembly (3) is disposed inside the housing (1) and has a locked state and an unlocked state. In the locked state, the lock cylinder assembly (3) cooperates with the lock belt assembly (2) to restrict the sliding of the lock belt assembly (2) relative to the housing (1). In the unlocked state, the lock cylinder assembly (3) is separated from the lock belt assembly (2). The unlocking component (4) is located inside the housing (1) and can drive the lock cylinder component (3) from the locked state to the unlocked state; as well as, An electronic component (5) is disposed within the housing (1). The electronic component (5) includes a circuit board (51) and a frequency element (52). The unlocking component (4) and the frequency element (52) are both electrically connected to the circuit board (51).

2. The anti-theft device according to claim 1, characterized in that, The locking belt assembly (2) includes a locking belt body (21) and a plurality of first locking teeth (22). Along the length direction of the locking belt body (21), each of the first locking teeth (22) is sequentially disposed on the outer wall of the locking belt body (21). The lock cylinder assembly (3) includes a second lock tooth (31) that can engage with the first lock tooth (22). The second lock tooth (31) can slide relative to the housing (1) along a first preset direction to approach / move away from the first lock tooth (22) in order to switch between the locked state and the unlocked state.

3. An anti-theft device according to claim 2, characterised in that, The lock cylinder assembly (3) further includes a pressing member (32), which is connected to the second lock tooth (31) and can slide relative to the housing (1) along the first preset direction to approach / move away from the first lock tooth (22), with at least a portion of the pressing member (32) exposed in the housing (1).

4. An anti-theft device according to claim 3, characterised in that, The lock cylinder assembly (3) further includes a plug (33) that can slide relative to the housing (1) in a second preset direction. The pressing member (32) is provided with a lock hole (321). In the locked state, the plug (33) can be inserted into the lock hole (321) to restrict the pressing member (32) from sliding away from the first lock tooth (22). The unlocking assembly (4) can drive the plug (33) to slide out of the lock hole (321).

5. An anti-theft device according to claim 4, characterised in that, The lock cylinder assembly (3) further includes a first elastic member (34) disposed between the pressing member (32) and the housing (1), the first elastic member (34) being capable of applying a force to the pressing member (32) to move it away from the first locking tooth (22); and / or, The lock cylinder assembly (3) further includes a second elastic member (35) disposed between the plug (33) and the housing (1), the second elastic member (35) being capable of applying a force to the plug (33) to insert it into the lock hole (321).

6. The anti-theft device according to claim 4, wherein The unlocking component (4) includes a drive (41) and an eccentric shaft (42) connected to the output end of the drive (41). The connector (33) is provided with a mating hole (331) that mates with the eccentric shaft (42).

7. The anti-theft device according to claim 4, characterized in that, The electronic component (5) also includes a micro switch (53) electrically connected to the circuit board (51), the micro switch (53) including a locking switch (531) and an unlocking switch (532); in the locked state, the connector (33) triggers the locking switch (531), and in the unlocked state, the connector (33) triggers the unlocking switch (532).

8. The anti-theft device according to claim 2, wherein The first locking tooth (22) includes a first guide surface (221) and a first locking surface (222) that are opposite to each other. The second locking tooth (31) includes a second guide surface (311) and a second locking surface (312) that are opposite to each other. The second guide surface (311) can slide and engage with the first guide surface (221) so that the second locking tooth (31) slides away from the first locking tooth (22). The second locking surface (312) can abut against the first locking surface (222) to restrict the sliding of the locking band assembly (2) relative to the housing (1). The lock cylinder assembly (3) further includes a third elastic member (36) disposed between the second lock tooth (31) and the housing (1), the third elastic member (36) being capable of applying a force to the second lock tooth (31) to move it closer to the first lock tooth (22).

9. The anti-theft device according to any one of claims 1-8, characterized in that, The anti-theft device also includes a protective cover (6) detachably disposed on the housing (1), the protective cover (6) being used to cover the cover of the product (200).

10. The anti-theft device according to any one of claims 1-8, characterized in that, The locking strap assembly (2) includes a locking strap body (21) and at least one anti-detachment tooth (23), the anti-detachment tooth (23) being disposed on the inner wall of the locking strap body (21); and / or, The locking strap assembly (2) includes a locking strap body (21) and at least one handle (24), the handle (24) being disposed on the outer wall of the locking strap body (21), one of the handles (24) being disposed at one end of the locking strap body (21) passing through the housing (1); and / or, The locking strap assembly (2) includes a locking strap body (21) and a spring-loaded member (25), the spring-loaded member (25) being inserted into the locking strap body (21); and / or, The electronic component (5) also includes a battery (54) and / or a buzzer (55) electrically connected to the circuit board (51).

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