Anti-theft self-sounding nail with improved structure

Abstract

The utility model relates to an anti-theft device, in particular to an anti-theft self-sounding nail with an improved structure. The utility model aims to provide an anti-theft self-sounding nail with an improved structure. The anti-theft self-sounding nail has the characteristics of strong anti-theft performance and sensitive alarm signal. According to the technical scheme, the anti-theft self-sounding nail with the improved structure comprises a cavity formed by a seat body and a bottom cover, and a battery, an acoustic magnetic component, a sounding component, a circuit board and a groove nail which are arranged in the cavity, and is characterized in that a lug boss at the middle position of the upper side of the bottom cover is provided with a nail hole which is through up and down; the groove nail can be positioned in the nail hole in a vertical sliding manner and is sleeved with a reset spring in a penetrating manner; the circuit board is provided with a contact alarm switch matched with the groove nail.

Description

Technical Field

[0001] This utility model relates to an anti-theft device, and in particular an improved anti-theft self-ringing nail. Background Technology

[0002] CN208548031U describes a self-ringing alarm pin, comprising an alarm upper shell, a latch, and a locking pin. The locking pin is inserted into the latch. A lower alarm shell is fixedly connected to the bottom of the inner cavity of the alarm upper shell by screws. The locking pin is inserted into the lower alarm shell. A circuit board is snapped into the inner cavity of the alarm upper shell. The circuit board integrates an inductor, a battery, a buzzer, a reed switch, and a micro switch. The micro switch is located at the center of the circuit board. A light guide post and a spring are embedded in the upper side of the inner cavity of the alarm upper shell, and the bottom end of the spring is supported on the micro switch. This self-ringing alarm pin can protect goods and reduce the risk of loss. The shortcomings of this self-ringing alarm pin are that the alarm response sensitivity and alarm signal strength need to be improved. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings in the above-mentioned background technology and provide an improved anti-theft self-ringing nail, which should have the characteristics of strong anti-theft performance and sensitive alarm signal.

[0004] The technical solution provided by this utility model is:

[0005] An improved anti-theft self-ringing nail includes a cavity formed by a base and a bottom cover, and a battery, an acousto-magnetic component, a sound-generating component, a circuit board, and a slotted nail installed in the cavity. The key feature is that a through-hole is provided on a protrusion at the middle position of the upper side of the bottom cover; the slotted nail is slidably positioned in the hole and fitted with a return spring; and a contact alarm switch that cooperates with the slotted nail is provided on the circuit board.

[0006] The contact alarm switch is located below the top cap of the slotted nail, and is formed by a number of positive contacts and a number of negative contacts arranged at intervals and maintaining a distance between each other, and is arranged around the circumference of the slotted nail rod; so that the alarm circuit can be activated when the top cap of the slotted nail is subjected to an external force and moves downward and touches any positive contact and any negative contact.

[0007] The circuit board is fixed between the bottom cover and the speaker and is equipped with an inductor to connect the alarm circuit, so as to amplify the alarm signal of the sound-generating component after the alarm circuit is turned on.

[0008] The bottom cover also forms a truncated cone that is coaxial with the nail hole and protrudes downwards, so as to match the recessed platform on the shoe label mating surface, thereby enhancing the anti-theft performance.

[0009] The beneficial effects of this utility model are as follows: due to the configuration of the contact alarm switch, this utility model can still sensitively emit an alarm signal when it is damaged; the set frustum structure effectively enhances the anti-pry capability; and the inductor further amplifies the alarm signal, thereby enhancing the deterrent and anti-theft capabilities, and providing a reliable anti-theft effect for goods. Attached Figure Description

[0010] Figure 1 This is one of the three-dimensional structural schematic diagrams (front view) of an embodiment of this utility model.

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

[0012] Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0013] Figure 4 This is a three-dimensional structural diagram of the shoe label that is used with this utility model.

[0014] Figure 5 This is an exploded view of an embodiment of this utility model.

[0015] Figure 6 This is one of the schematic diagrams of the three-dimensional structure of the circuit board in this utility model (front view).

[0016] Figure 7 This is the second schematic diagram of the three-dimensional structure of the circuit board in this utility model (reverse view).

[0017] Figure 8 This is a schematic diagram showing the combination of this utility model and the shoe label.

[0018] Figure 9 This is one of the schematic diagrams of the usage state of this utility model (before the label is locked).

[0019] Figure 10 This is one of the schematic diagrams of the usage state of this utility model (after the label is locked).

[0020] The following components are marked in the diagram: lampshade 1, base 2, horn hole 2-1, battery 3, positive and negative terminals 4, battery holder 5, slot pin 6, pin tip 6-1, reset spring 7, circuit board 8, alarm release switch 8-1, alarm contact ring 8-2, acousto-magnetic component 8-3, horn 8-4, bottom cover 9, circular groove 9-1, boss 9-2, operating hole 9-3, protrusion 9-4, inductor 10, recess 11, protruding ring 11-1, product 12, shoe label 13. Detailed Implementation

[0021] The following description, in conjunction with the embodiments shown in the accompanying drawings, provides further details.

[0022] Figures 1-2 The anti-theft self-ringing nail shown contains a battery holder 5 with a battery 3, an acousto-magnetic component 8-3, a sound-generating component, a circuit board 8, and a slotted nail inside the base 2. This is similar to existing anti-theft self-ringing nails.

[0023] The improvement of this utility model is that the slotted nail is vertically movable and positioned in the base.

[0024] Depend on Figure 1 , Figure 2 As can be seen from the diagram: the base 1 is made in the shape of a clock, and the opening at the bottom is closed and fixed by a bottom cover, thus forming a cavity; there is a vertical, cylindrical protrusion 9-4 in the middle of the upper side of the bottom cover, with a through-hole in the center of the protrusion, in which the slotted pin can be slidably positioned; the slotted pin consists of a pin rod and a top cap that are integrally connected and are metal conductors; a return spring 7 is sleeved in the pin rod, and the lower part of the return spring passes through the outer circumference of the protrusion while the top end applies upward force to the top cap of the slotted pin. The horn, as a sound-producing component, is installed in the middle of the base and above the slotted pin, thus sealing off the space above the slotted pin, so that the slotted pin can only move within a limited range (3-5mm). The circuit board is fixed between the bottom cover and the speaker. The circuit board is equipped with an inductor 10, an alarm release switch 8-1, and a contact alarm switch 8-2, and is connected to the acousto-magnetic component. The contact alarm switch is located below the top cap of the slot nail and is formed by several positive contacts and several negative contacts arranged at intervals and maintaining a distance between each other (the several positive contacts are connected in parallel to the positive terminal on the circuit board, and the several negative contacts are also connected in parallel to the negative terminal on the circuit board). The contact alarm switch is circumferentially surrounding the slot nail rod. When the slot nail is subjected to external force and moves downward and the top cap simultaneously touches any positive contact and any negative contact, the alarm circuit of the circuit board can be activated.

[0025] The inductor is also connected to the alarm circuit; when the alarm circuit is turned on, the inductor discharges instantaneously, and the large current released instantaneously can make the horn emit a loud alarm sound signal, thereby alerting the surrounding people; at the same time, the horn hole 2-1 added to the outer surface of the seat can also increase the transmitted alarm sound signal.

[0026] The alarm release switch 8-1 is installed on the lower side of the circuit board, and an operating hole 9-3 is provided at the corresponding position on the bottom cover. When the anti-theft self-ringing nail alarm is triggered, a thin rod can be passed through the operating hole to touch the switch, thereby cutting off the alarm circuit and terminating the alarm.

[0027] The cavity of the seat also contains a battery holder 5, in which a battery 3 is installed; the battery is connected to the circuit board to provide the power required for operation.

[0028] Furthermore, a truncated cone 9-2, coaxial with the nail hole and protruding downwards, is formed on the lower side of the bottom cover, and an annular groove 9-1 is formed around the periphery of the truncated cone. Figure 8 It can be seen that: the truncated cone matches the recessed platform 11 on the mating surface of the shoe label 13; after the annular groove is fitted with the protruding ring 11-1 on the mating surface of the shoe label, the surface of the truncated cone can fit against the surface of the recessed platform on the mating surface of the shoe label, thereby preventing malicious individuals from using inserts to steal the product. Furthermore, from Figure 2 It can be seen that by setting up the recessed platform structure, the distance between the alarm release switch 8-1 and the surface of the recessed platform and the angle between the operating hole 9-3 and the protruding ring are increased, making it difficult for thieves to insert a thin rod into the operating hole (preventing them from carrying out the malicious act of cutting off the alarm circuit).

[0029] This utility model needs to be used in conjunction with shoe type labels (existing technology); when the slotted nail is inserted into the nail hole of the shoe type label, it is clamped by the clamp (usually a three-ball clamp) inside the shoe type label and cannot be detached.

[0030] The method of using this utility model is as follows:

[0031] 1. For example Figure 8 As shown, first place the shoe tag 13 inside the product (a screenshot of the top in the image), then insert the slotted nail of this invention downwards through the product and then into the nail hole of the shoe tag, so that this invention, the product, and the shoe tag are in a close fit, and the locking is completed (as shown). Figure 9 (As shown).

[0032] 2. To unlock, place the shoe tag into the unlocking area of ​​the handheld unlocking device (existing technology, view omitted), and then press the trigger of the handheld unlocking device. The slotted pin and the shoe tag will then disengage, completing the unlocking process.

[0033] 3. Alarm Methods: ① When this utility model approaches the sensing area of ​​the shopping mall antenna, its speaker will emit an alarm sound; ② When the shopping mall antenna senses the signal of the acousto-magnetic component of this utility model, the antenna will trigger the alarm element to emit an alarm sound; ③ When a malicious person forcibly damages this utility model and the slotted nail in an attempt to remove the goods, the top cap of the slotted nail will move down and touch the alarm switch, and this utility model will also emit an alarm sound.

Claims

1. An improved anti-theft self-sounding nail, comprising a cavity formed by a base (2) and a bottom cover, and a battery (3), an acousto-magnetic component (8-3), a sound-generating component, a circuit board (8), and a slotted nail (6) installed in the cavity, characterized in that: The protrusion (9-4) at the middle of the upper side of the bottom cover is provided with a through-hole, and the slotted nail is slidably positioned in the nail hole and is fitted with a return spring (7); the circuit board is provided with a contact alarm switch (8-2) that cooperates with the slotted nail. The circuit board is fixed between the bottom cover and the speaker and is equipped with an inductor (10) to connect the alarm circuit, so as to increase the alarm signal of the sound-generating component after the alarm circuit is connected. The bottom cover also forms a truncated cone (9-2) that is coaxial with the nail hole and protrudes downward, so as to match the recessed platform (11) on the shoe label mating surface, thereby enhancing the anti-theft performance.

2. The anti-theft self-ringing nail with the improved structure according to claim 1, characterized in that: The contact alarm switch is located below the top cap of the slotted nail, and is formed by a number of positive contacts and a number of negative contacts arranged at intervals and maintaining a distance between each other, and surrounds the circumference of the slotted nail rod; so that the alarm circuit is activated when the top cap (6-2) of the slotted nail is subjected to an external force and moves downward while touching any positive contact and any negative contact.

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