Anti-theft nail capable of preventing goods from being damaged

Abstract

The utility model relates to an anti-theft device, in particular to an anti-theft nail capable of preventing goods from being damaged. The utility model aims to provide an anti-theft nail capable of preventing goods from being damaged, and the anti-theft nail not only has an anti-theft function of the goods, but also can protect the goods from being damaged. According to the technical scheme, the anti-theft nail capable of preventing the commodities from being damaged comprises a nail cap and a nail rod connected with the nail cap, and is characterized in that an elastic pressing column is slidably arranged on the nail rod in a penetrating and sleeving mode, and a closed cavity used for retraction of an elastic cushion is further formed between the elastic pressing column and the nail cap.

Description

Technical Field

[0001] This utility model relates to an anti-theft device, specifically an anti-theft nail that can prevent damage to goods. Background Technology

[0002] CN201188248Y discloses an anti-theft alarm tag, comprising a nail and a clamping body capable of engaging with the nail. The nail has a head and a shank. A metal head in the clamping body is slidably positioned within a housing. An elastic insulator and a circuit board are sequentially disposed between the metal head of the clamping body and a nail hole on the housing. The shank of the nail passes through the nail hole on the housing and enters the clamping body for engagement. The contacts of the circuit board are separated from the metal head of the clamping body by the elastic insulator, so that when the nail is under tension, the elastic insulator is compressed, thereby activating the alarm circuit of the circuit board. This tag is characterized by its small size, concealed installation, and reliable operation. However, when used for theft prevention of sheet-like goods (especially clothing fabrics), the looseness of the goods causes the nail head to slide against the surface of the goods, causing the nail hole to gradually enlarge over time, resulting in damage to the goods. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and provide an anti-theft nail that can prevent damage to goods. This anti-theft nail has both the function of preventing theft of goods and the ability to protect goods from damage.

[0004] The technical solution of this utility model is:

[0005] An anti-theft nail that can prevent damage to goods includes a nail head and a nail rod connected to the nail head, characterized in that: an elastic pressure post is slidably sleeved on the nail rod, and a closed cavity for elastic pad retraction is formed between the elastic pressure post and the nail head.

[0006] The elastic pressure column includes a cap-shaped pressure sleeve that is fitted onto the nail rod and rotated 180 degrees, and a spring that is fitted onto the nail rod and applies pressure to the nail cap and the pressure sleeve at both ends respectively.

[0007] The bottom shell with a stepped hole that is larger at the top and smaller at the bottom is fixed to the lower side of the nail head; the four periphery of the pressure sleeve is formed with a flange that protrudes outward in the direction of the outer diameter; the flange and the step of the stepped hole cooperate to prevent the bottom shell and the pressure sleeve from separating.

[0008] The lower half of the nail rod has several annular grooves that surround the circumference of the nail rod, so as to lock into the locking assembly during use.

[0009] The beneficial effects of this utility model are: the anti-theft nail provided can always maintain a tight fit with the protected goods during use, so the nail is not easy to move on the goods, thereby ensuring that the nail hole inserted into the goods will not enlarge and avoiding damage to the goods. Attached Figure Description

[0010] Figure 1 This is one of the three-dimensional structural schematic diagrams of an embodiment of this utility model (in a non-use state).

[0011] Figure 2 This is the second three-dimensional structural schematic diagram of an embodiment of this utility model (in use).

[0012] Figure 3 This is an exploded view of an embodiment of this utility model.

[0013] Figure 4 This is one of the usage state diagrams of this utility model embodiment (preparation state).

[0014] Figure 5 This is the second schematic diagram of the usage state of this utility model embodiment (anti-theft nail and locking component are in cooperation, elastic pressure column is not activated).

[0015] Figure 6 This is the third schematic diagram of the usage state of this utility model embodiment (the anti-theft nail and the locking component are working together, and the elastic pressure column is activated).

[0016] Figure 7 This is a schematic diagram of the relationship between the protected product and the product in an embodiment of this utility model (locked state).

[0017] Figure 8 This is a schematic diagram of the relationship between the protected product and the product in an embodiment of this utility model (unlocked state).

[0018] Figure label:

[0019] Nail head 1-1, nail rod 1-2, ring groove 1-21, spring 2, pressure sleeve 3, bottom shell 4, locking base 5, locking steel plate 5-1, textile products 6, unlocking device 7. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] The anti-theft nail shown in the figure can prevent damage to goods, including a nail head and a nail shank 1-2 with the nail head 1-1 connected at the top and a pointed end at the bottom, which is similar to the prior art.

[0022] The improvement of this utility model is that an elastic pressure column is sleeved on the nail rod, and the elastic pressure column can slide on the nail rod; a closed cavity for elastic pad retraction is also formed between the elastic pressure column and the nail head.

[0023] The elastic pressure column includes a cap-shaped pressure sleeve 3 and a spring 2; the pressure sleeve passes through a central sliding hole on the nail rod, and the spring passes through the nail rod and applies pressure to the nail cap and the pressure sleeve at both ends respectively;

[0024] The bottom shell 4 is fixed to the lower side of the nail head. The bottom shell has a stepped hole that is larger at the top and smaller at the bottom. The pressure sleeve is rotated 180 degrees and has flanges that protrude outward in the direction of the outer diameter on all four sides. The flanges are located above the steps of the stepped hole and are thus blocked by the steps, so they cannot be separated from the limit of the bottom shell.

[0025] The lower half of the nail rod is provided with several annular grooves 1-21, each annular groove surrounding the circumference of the nail rod, so as to lock into the locking assembly during use.

[0026] This utility model, combined with a locking base 5 equipped with a locking component, forms a complete anti-theft tag.

[0027] The locking component is existing technology (similar to the locking mechanism in CN108648398 B); the locking component is installed in the locking base 5, and the locking base is equipped with a circuit board and an acousto-magnetic component (the locking mechanism in CN108648398 B is also installed in the base); therefore, it will not be described in detail.

[0028] I. The working principle is:

[0029] (1) Locking: The tip of the nail rod in this utility model is inserted through the product (such as textile products 6), and then inserted into the locking component in the locking base 5, and pressed down to make the pressure sleeve retract to the bottom (such as...). Figure 2 (State); then release, the steel plate in the locking component is engaged with a ring groove in the nail rod to achieve a locking fit, and the locking is completed; at this time, under the pressure of the spring, the bottom end of the pressure sleeve presses against the surface of the product and will not slide against each other (before the improvement, the nail head and the surface of the product would slide against each other).

[0030] (2) Locking retention: Since the steel sheet is always embedded in the annular groove in the nail rod, and the spring is always applied to the pressure sleeve so that it presses against the surface of the product and does not slide against each other, the nail hole on the product is not pulled, so the nail hole will not be enlarged, thus avoiding damage to the product.

[0031] (3) Unlocking (same as existing technology): Align the unlocking area of ​​the magnetic unlocker 7 with the unlocking area of ​​the locking base, and the steel plate will be attracted to achieve unlocking.

[0032] II. Anti-theft principle:

[0033] (1) If a thief takes the anti-theft tag along with the goods out of the mall, when the thief passes the antenna at the mall entrance, the acousto-magnetic component will sense the signal emitted by the antenna and thus sound an alarm.

Claims

1. An anti-theft nail that can prevent damage to goods, comprising a nail head (1-1) and a nail shank (1-2) connecting the nail head, characterized in that: An elastic pressure post is slidably sleeved on the nail rod, and a closed cavity for elastic pad retraction is formed between the elastic pressure post and the nail head; The elastic pressure column includes a cap-shaped pressure sleeve (3) that is sleeved on the nail rod and rotated 180 degrees, and a spring (2) that is sleeved on the nail rod and applies pressure to the nail cap and the pressure sleeve at both ends respectively.

2. The anti-theft nail that can prevent damage to goods according to claim 1, characterized in that: The bottom shell (4) with a stepped hole that is larger at the top and smaller at the bottom is fixed to the lower side of the nail head; the four sides of the pressure sleeve are formed with flanges that protrude outward in the direction of the outer diameter; the flanges cooperate with the steps of the stepped hole, thereby preventing the bottom shell from separating from the pressure sleeve.

3. The anti-theft nail that can prevent damage to goods according to claim 2, characterized in that: The lower half of the nail rod is provided with several annular grooves (1-21) that surround the circumference of the nail rod, so as to lock with the locking assembly during use.

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