Cut-resistant RFID tag
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ONTIME RFID TECHNOLOGY (CHANGXING) CO LTD
- Filing Date
- 2025-10-22
- Publication Date
- 2026-06-25
AI Technical Summary
Existing anti-theft tags, when protecting thin clothing, have an exposed middle section of the tag that is easily cut off, rendering the anti-theft protection ineffective.
A cut-proof RFID tag was designed, comprising a protective structure consisting of a tag clip, a button cap, a locking sleeve, a lock cylinder, and a spring. When unlocked, the locking sleeve retracts without affecting the handling of clothing. When locked, the spring drives the locking sleeve to extend and protect the locking pin, preventing it from being cut.
It enhances the anti-theft effect on clothing of different thicknesses, prevents the lock from being cut, is easy to use, and significantly improves the anti-theft effect.
Smart Images
Figure CN2025129268_25062026_PF_FP_ABST
Abstract
Description
A type of tamper-proof RFID tag Technical Field
[0001] This utility model relates to an anti-theft device for goods, specifically an anti-cut RFID tag. Background Technology
[0002] Existing anti-theft tags, such as CN203773667U, include a nail head and a clamp that can be fixedly connected to the nail head. When locked, the nail bar is inserted into the clamp and clamped and fixed by the built-in lock cylinder.
[0003] The shortcomings of the aforementioned anti-theft tags are as follows: when the tags are locked to protect clothing, the front end of the tag passes through the clothing and is clamped and fixed by the lock cylinder. However, for clothing with thinner fabrics, the middle part of the tag is exposed because it is not inserted into the lock cylinder. In this case, a tool can be used to cut off this part of the tag to remove the clothing, causing the anti-theft protection to fail. Therefore, further improvements are needed. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide an anti-cutting RFID tag that is easy to use and has a good anti-theft effect.
[0005] The technical solution of this utility model is:
[0006] A cut-resistant RFID tag includes a tag holder, a button cap with a locking pin, a lock cylinder, and an alarm component; the button cap is slidably positioned on the top surface of the upper clamping arm of the tag holder; characterized in that it further includes a locking pin sleeve slidably positioned on the bottom surface of the upper clamping arm of the tag holder; the locking pin sleeve has a central hole for engaging the locking pin; a first spring is provided between the button cap and the locking pin sleeve, and a second spring is provided between the locking pin sleeve and the bottom surface of the inner cavity of the upper clamping arm.
[0007] The locking pin sleeve has a protruding edge; the two ends of the first spring respectively abut against the button cap and the protruding edge of the locking pin sleeve; the two ends of the second spring respectively abut against the protruding edge of the locking pin sleeve and the bottom surface of the inner cavity of the upper clamping arm.
[0008] The lock pin, button cap, lock pin sleeve, first spring, and second spring are arranged coaxially with the lock cylinder.
[0009] The lock cylinder is a three-ball seat lock cylinder.
[0010] The spring constant of the first spring is greater than that of the second spring.
[0011] The alarm component includes a coil and an RFID tag.
[0012] The beneficial effects of this utility model are:
[0013] This utility model adds a locking pin sleeve and two springs. When unlocked, the springs drive the locking pin sleeve to retract automatically, which will not affect the taking and putting away of clothes. When locked, the springs drive the locking pin sleeve to extend automatically, protecting the exposed locking pin. The locking pin sleeve cannot be pried open by external force. It is suitable for protecting clothes of different thicknesses and can prevent the locking pin from being cut off so that items can be easily taken out. It is not only very convenient to use, but also greatly enhances the anti-theft effect. Attached Figure Description
[0014] Figure 1 is a schematic diagram of the main structure of this utility model (working step one).
[0015] Figure 2 is a schematic diagram of the main structure of this utility model (working step two).
[0016] Figure 3 is a schematic diagram of the main structure of this utility model (work step three).
[0017] Figure 4 is a schematic diagram of the main structure of this utility model (protecting the thickest clothing).
[0018] Figure 5 is an exploded view of this utility model.
[0019] Figure label:
[0020] Label clip 1, upper clamping arm 1-1, lower clamping arm 1-2, half shell assembly 1-3, upper sliding hole 1.1, lower sliding hole 1.2, lock hole 1.3, with locking pin 2, button cap 3, button cap protrusion 3-1, locking pin sleeve 4, locking pin sleeve upper protrusion 4-1, locking pin sleeve lower protrusion 4-2, center hole 4-3, lock cylinder 5, first spring 6, second spring 7, coil 8-1, label 8-2, clothing 9. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0022] As shown in Figure 1, an anti-cutting RFID tag includes a tag holder 1, a button cap 3 with a locking pin 2, a locking pin sleeve 4, a lock cylinder 5, a first spring 6, a second spring 7, and an alarm component.
[0023] The label holder has a U-shaped structure, including an upper clamping arm 1-1 and a lower clamping arm 1-2 arranged in parallel. The upper and lower clamping arms maintain a certain distance, allowing the clothing to be protected to be placed between them. The label holder is composed of two half-shells 1-3.
[0024] The button cap, locking pin sleeve, first spring, and second spring are disposed in the upper clamping arm. The lock cylinder is disposed in the lower clamping arm. The locking pin, button cap, locking pin sleeve, first spring, and second spring are arranged coaxially with the lock cylinder, and the button cap and locking pin sleeve are slidably positioned in the upper clamping arm.
[0025] The upper clamping arm has an upper sliding hole 1.1 on its top surface that mates with the button cap, a lower sliding hole 1.2 on its bottom surface that mates with the locking pin sleeve, and a locking hole 1.3 on its top surface that mates with the locking pin.
[0026] The button cap is slidably positioned in the upper sliding hole on the top surface of the upper clamping arm, and the button cap can extend upwards out of the top surface of the upper clamping arm through the upper sliding hole. The locking pin sleeve is slidably positioned in the lower sliding hole on the bottom surface of the upper clamping arm, and the locking pin sleeve can extend downwards out of the bottom surface of the upper clamping arm through the lower sliding hole.
[0027] The locking pin is vertically fixed in the center of the top surface of the inner cavity of the button cap. The front end of the locking pin extends downward out of the button cap. The locking pin is fitted with an axially arranged central hole 4-3, through which the locking pin can extend downward out of the locking pin sleeve.
[0028] The bottom of the outer circumference of the button cap is provided with a button cap protrusion 3-1, which controls the upward extension distance of the button cap by cooperating with the upper sliding hole. The middle of the outer circumference of the locking sleeve is provided with a locking sleeve upper protrusion 4-1 and the bottom is provided with a locking sleeve lower protrusion 4-2, which controls the upward retraction distance of the locking sleeve by cooperating with the lower sliding hole.
[0029] The first spring is disposed between the button cap and the locking pin sleeve, and is used to apply a pushing force to the button cap to make it pop up or to apply a pushing force to the locking pin sleeve to make it pop down. The second spring is disposed between the locking pin sleeve and the upper clamping arm, and is used to apply a pushing force to the locking pin sleeve to make it retract upward into the upper clamping arm.
[0030] The upper part of the first spring extends into the inner cavity of the button cap and abuts against the top surface of the inner cavity of the button cap. The lower part of the first spring is sleeved on the upper end of the locking pin sleeve and abuts against the protruding edge of the locking pin sleeve. The second spring is sleeved on the locking pin sleeve, and its two ends abut against the bottom surface of the inner cavity of the upper clamping arm and the protruding edge of the locking pin sleeve, respectively. The elastic coefficient of the first spring is greater than that of the second spring.
[0031] The lock cylinder is located in the lower clamping arm. The lock cylinder is a three-ball seat lock cylinder, which is an existing structure.
[0032] The alarm component is disposed in the upper or lower clamping arm. The alarm component includes a coil 8-1 and an RFID tag 8-2.
[0033] The working principle of this utility model is as follows:
[0034] 1. In the unused state, as shown in Figure 1, the button cap pops out from the top of the upper clamping arm and the locking pin sleeve retracts upward into the upper clamping arm;
[0035] 2. Lock:
[0036] a. Place garment 9 between the upper and lower armholes;
[0037] b. As shown in Figure 2, when the button cap is pressed, the compression length of the first spring is less than that of the second spring. Therefore, the locking sleeve extends downward (the extension length is related to the thickness of the clothing) until the locking sleeve stops moving when it presses against the clothing.
[0038] c. As shown in Figure 3, as the button cap continues to move downward under pressure, the locking pin passes through the locking pin sleeve, clothing, and keyhole in sequence before being inserted into the lock cylinder. The lock cylinder clamps the locking pin, thus completing the locking process.
[0039] As shown in Figure 4, when protecting thicker clothing (with the same spacing as the upper and lower clamping arms), after pressing the button cap, the locking pin sleeve cannot move down because it is blocked by the clothing. The locking pin moves down directly and passes through the locking pin sleeve, clothing, and lock hole before inserting into the lock cylinder to complete the locking.
[0040] d. Because the locking pins between the upper clamp arm and the clothing are surrounded by the locking pin sleeve, and the locking pin sleeve is pressed tightly against the clothing by the pressure of the second spring, it is difficult to pry open the locking pin sleeve with external force, thus preventing the locking pins from being cut by tools and enhancing the protective effect.
[0041] 3. Unlock
[0042] Place the lock cylinder of the lower clamp arm on the magnetic lock pick. The lock cylinder will release the lock pin, the button cap will pop up, and the lock pin sleeve will retract upwards. Then, remove the clothes.
[0043] The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.
Claims
1. A cut-resistant RFID tag, comprising a tag holder (1), a button cap (3) with a locking pin (2), a lock cylinder (5), and an alarm assembly; wherein the button cap is slidably positioned on the top surface of the upper clamping arm of the tag holder; characterized in that: It also includes a locking sleeve (4) that is slidably positioned on the bottom surface of the upper clamping arm of the label holder; the locking sleeve is provided with a central hole (4-3) for engaging the locking pin; a first spring (6) is provided between the button cap and the locking sleeve, and a second spring (7) is provided between the locking sleeve and the bottom surface of the inner cavity of the upper clamping arm.
2. The anti-tamper RFID tag according to claim 1, characterized in that: The locking pin sleeve has a raised edge (4-1) on the locking pin sleeve; the two ends of the first spring respectively abut against the button cap and the raised edge on the locking pin sleeve; the two ends of the second spring respectively abut against the raised edge on the locking pin sleeve and the bottom surface of the inner cavity of the upper clamping arm.
3. The anti-tamper RFID tag according to claim 2, characterized in that: The lock pin, button cap, lock pin sleeve, first spring, and second spring are arranged coaxially with the lock cylinder.
4. The anti-tamper RFID tag according to claim 3, characterized in that: The lock cylinder is a three-ball seat lock cylinder.
5. The anti-tamper RFID tag according to claim 4, characterized in that: The spring constant of the first spring is greater than that of the second spring.
6. The anti-tamper RFID tag according to claim 5, characterized in that: The alarm component includes a coil (8-1) and an RFID tag (8-2).