Commodity burglar alarm

Abstract

The utility model belongs to the technical field of burglary prevention, and particularly relates to a commodity burglar alarm which comprises a shell. The mounting assembly is arranged on the shell and is used for fixing the shell on an outer package of a commodity; the controller is arranged in the shell; the radar assembly is connected with the controller; the radar assembly is used for sending a radar signal and detecting whether a commodity in an outer package of the commodity is stored or not according to the radar signal; and the alarm assembly is connected with the controller and is used for triggering an alarm when the radar assembly does not detect the commodity. According to the utility model, the commodity in the commodity outer package is monitored through the radar assembly, compared with the existing electric field detection, the radar has higher precision and accuracy, the range of the radar is wider, and the requirement on the accuracy of the installation position is lower, so that the anti-theft of the commodity can be better carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-theft, and particularly refers to an anti-theft device for commodities. Background Art

[0002] Most of the existing anti-theft tags perform anti-theft detection by detecting the change of electric field. For example, a kind of anti-theft tag and method for monitoring articles in a box disclosed in Chinese invention patent 2017110215361 includes a tag body, and the tag body includes a shell, an induction module, a power supply module, a processor and a measurement circuit. The processor is connected with the induction module, the power supply module and the measurement circuit, and the measurement circuit is connected with the induction module. However, the accuracy of the electric field detection method is general and cannot be applied to some high-precision occasions. Summary of the Invention

[0003] The purpose of the utility model is to provide an anti-theft device for commodities with higher accuracy.

[0004] The purpose of the utility model is realized as follows:

[0005] An anti-theft device for commodities includes:

[0006] A housing;

[0007] An installation component, arranged on the housing and used for fixing the housing on the outer package of the commodity;

[0008] A controller, arranged in the housing;

[0009] A radar component, connected with the controller; the radar component is used for sending radar signals and detecting the presence or absence of commodities in the outer package of the commodity according to the radar signals; and

[0010] An alarm component, connected with the controller and used for triggering an alarm when the radar component fails to detect the commodity.

[0011] Furthermore, a locking component and an unlocking component are also arranged in the housing. The locking component is connected with the controller and used for monitoring the fixing state of the housing when the housing is fixed on the outer package of the commodity, and triggering the alarm component to alarm when the housing is detached from the outer package of the commodity;

[0012] The unlocking component is used for aborting the monitoring of the locking component.

[0013] Furthermore, the locking component includes a micro switch fixed on the controller, and a movable block is arranged on the micro switch; when the housing is fixed on the outer package of the commodity, both sides of the movable block respectively abut against the outer package of the commodity and the micro switch, and when the housing is detached from the outer package of the commodity, the movable block is detached from the micro switch.

[0014] Further, the housing is provided with a movable hole, and both ends of the movable hole are respectively communicated with the microswitch and the outside of the housing, and the movable block is arranged in the movable hole.

[0015] Further, the movable hole is arranged on one side of the installation component.

[0016] Further, the unlocking component includes a Hall element fixed on the controller, the Hall element is connected with an encoder, the Hall element is used for detecting the change of the external magnetic field, and the encoder outputs an analog quantity to the controller according to the change rule of the external magnetic field.

[0017] Further, the unlocking component includes a photosensitive element fixed on the controller, the photosensitive element is connected with an encoder, the Hall element is used for detecting the change of the external light source, and the encoder outputs an analog quantity to the controller according to the change rule of the external light source.

[0018] Further, the controller includes a circuit board, and a processor, a battery and a radar component are fixed on the circuit board.

[0019] Further, the housing includes a base, a middle seat and an upper cover which are connected in sequence, the circuit board is fixed between the base and the middle seat, and a replacement port opposite to the battery is arranged on the middle seat.

[0020] Further, the installation component includes an easy-pull glue fixed on one side of the housing, and an installation groove for installing the easy-pull glue is further arranged on the housing.

[0021] The prominent and beneficial technical effects of the present utility model compared with the prior art are:

[0022] This patent realizes the monitoring of the commodities in the outer package of the commodities through the radar component. Compared with the existing electric field detection, the radar has higher precision and accuracy, and the radar has a wider range and lower requirement for the accuracy of the installation position, so that the anti-theft of the commodities can be better carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the installation schematic diagram of the commodity anti-theft device.

[0024] Figure 2 is the working principle diagram of the commodity anti-theft device.

[0025] Figure 3 is the forward explosion schematic diagram of the anti-theft device.

[0026] Figure 4 is the reverse explosion schematic diagram of the anti-theft device.

[0027] The meanings represented by the reference numerals in the drawings:

[0028] 1. Housing; 11. Base; 12. Middle seat; 13. Upper cover; 14. Replacement port; 15. Installation groove; 2. Installation component; 3. Controller; 31. Radar component; 32. Circuit board; 33. Processor; 34. Battery; 4. Alarm component; 5. Locking component; 51. Microswitch; 52. Movable block; 53. Movable hole; 7. Outer packaging of commodity Detailed implementation manners

[0029] The present utility model will be further described below in conjunction with specific embodiments:

[0030] An anti-theft device for commodities includes a housing 1, an installation component 2, a controller 3, a radar component 31 and an alarm component 4. The installation component 2 is arranged on the housing 1 and is used to fix the housing 1 on the outer packaging 7 of the commodity. The controller 3 is arranged in the housing 1. The radar component 31 is connected to the controller 3. The radar component 31 is used to send radar signals and detect whether there is a commodity in the outer packaging 7 of the commodity according to the radar signals. The alarm component 4 is connected to the controller 3 and is used to trigger an alarm when the radar component 31 does not detect a commodity.

[0031] The anti-theft device described in this patent is used to be installed on some commodities with packaging boxes. As shown in Figure 1 、 2 , the housing 1 in this patent is fixed on a side wall of the outer packaging 7 of the commodity through the installation component 2. The internal radar component 31 will continuously send radar signals into the outer packaging 7 of the commodity. When there is a commodity, the radar signal contacts the commodity and is fed back to the radar component 31. The radar component 31 receiving the feedback signal indicates that the commodity still exists in the housing 1. If the commodity in the packaging box is stolen by others, the radar component 31 cannot receive the feedback signal. The radar component 31 will send a signal to the controller 3, and then the controller 3 controls the alarm component 4 to work and trigger an alarm. Generally, there are various implementation manners for the alarm component 4. It can be a buzzer arranged in the anti-theft device described in this patent. When the commodity in the packaging box is stolen, the buzzer will work and emit an alarm, thus achieving an alarm effect. The alarm component 4 can also be connected to the shopping mall access control system. When the commodity in the packaging box is stolen, it can directly broadcast through the shopping mall access control system.

[0032] Specifically, as shown in Figure 3 、 4As shown, the housing 1 includes a base 11, a middle seat 12, and an upper cover 13 that are connected in sequence. The base 11, the middle seat 12, and the upper cover 13 are fixedly connected by fasteners. The controller 3 includes a circuit board 32. The circuit board 32 is provided with a processor 33, a battery 34, and the radar assembly 31. The radar assembly 31 and the processor 33 are powered by the battery 34. The circuit board 32 is fixed between the base 11 and the middle seat 12. A replacement port 14 opposite to the battery 34 is provided on the middle seat 12. During installation, the controller 3 is fixed between the base 11 and the middle seat 12, and the battery 34 is exposed outward through the replacement port 14. Then the upper cover 13 is fixed on the middle seat 12 to close the replacement port 14. The battery 34 can be quickly replaced by removing the upper cover 13 and passing through the replacement port 14.

[0033] The installation component 2 includes an easy-pull adhesive fixed on one side of the housing 1. The entire housing 1 can be directly fixed on the outer packaging 7 of the commodity through the easy-pull adhesive to achieve fixation. To facilitate the installation of the easy-pull adhesive, an installation groove 15 for installing the easy-pull adhesive is further provided on the housing 1.

[0034] In summary, this patent realizes the monitoring of the commodity inside the outer packaging 7 of the commodity through the radar assembly 31. Compared with the existing electric field detection, the radar has higher precision and accuracy, and the radar range is wider, with lower requirements for the accuracy of the installation position, so that the anti-theft of the commodity can be better carried out.

[0035] Furthermore, a locking component 5 and an unlocking component are also provided in the housing 1. The locking component 5 is connected to the controller 3 and is used to monitor the fixed state of the housing 1 when the housing 1 is fixed on the outer packaging 7 of the commodity. When the housing 1 is detached from the outer packaging 7 of the commodity, the alarm component 4 is triggered to alarm. The unlocking component is used to abort the monitoring of the locking component 5.

[0036] Specifically, the locking component 5 includes a microswitch 51 fixed on the controller 3, and a movable block 52 is provided on the microswitch 51. When the housing 1 is fixed on the outer packaging 7 of the commodity, both sides of the movable block 52 abut against the outer packaging 7 of the commodity and the microswitch 51 respectively. When the housing 1 is detached from the outer packaging 7 of the commodity, the movable block 52 is detached from the microswitch 51.

[0037] Specifically, such as Figure 4As shown, the microswitch 51 is disposed on one side of the circuit board 32 close to the base 11. A through activity hole 53 is formed in the base 11. Both sides of the activity hole 53 communicate the microswitch 51 with the outside of the housing 1, and the activity block 52 is located in the activity hole 53. Since the mounting assembly 2 is located on the base 11, when the housing 1 is fixed to the outer package 7 of the commodity through the mounting assembly 2, the base 11 is in contact with the outer package 7 of the commodity. At this time, the activity block 52 is located in the activity space, and its two ends respectively abut against the outer package 7 of the commodity and the microswitch 51. The microswitch 51 is a normally closed switch. When the activity block 52 abuts against the microswitch 51, the microswitch 51 is in an open state; when the housing 1 is detached from the outer package 7 of the commodity, one side of the activity hole 53 is exposed outward, so that the activity block 52 is detached from the activity hole 53 and no longer abuts against the microswitch 51, making the microswitch 51 in a closed state. By the conduction of the microswitch 51, the program in the controller 3 is triggered, so that the alarm assembly 4 triggers an alarm to indicate that the anti-theft device is in an abnormal state and needs to be maintained in time. The above microswitch 51 can also be a normally open switch, as long as the same working logic is achieved.

[0038] In the actual use process, there is also a special situation in the use of the anti-theft device, that is, the packaging box, the commodity in the packaging box and the anti-theft device in this patent are taken out of the mall at the same time. At this time, the alarm assembly 4 is not in the unlocked state, and the alarm assembly 4 will also cause the mall access control system to issue an alarm to ensure the anti-theft of the commodity.

[0039] Further, the unlocking component includes a Hall element fixed on the controller 3. The Hall element is connected to an encoder. The Hall element is used to detect changes in the external magnetic field, and the encoder outputs an analog quantity to the controller 3 according to the change law of the external magnetic field. The Hall element is installed on the circuit board 32. During use, the user can place the magnet on the housing 1 according to a specified order to simulate changes in the external magnetic field. For example, within a specified time, place the magnet on the housing 1 briefly and then remove it. The Hall element will detect the change in the magnetic field and record this magnetic field change as an analog quantity 1 through the encoder. According to this principle, when no magnet is placed, the Hall element will detect the change in the magnetic field and record this magnetic field change as an analog quantity 0 through the encoder. In this way, a series of analog quantities are obtained. When a series of analog quantities correspond to a preset analog quantity, the controller 3 disconnects the monitoring of the locking component 5 on the housing 1, that is, disconnects the circuit between the locking component 5 and the alarm component 4 in the program or in the circuit to abort the monitoring of the locking component 5. The user can remove the anti-theft device described in this patent through this unlocking device. The unlocking method using the Hall element is safer and more stable. The unlocking component can also be a photosensitive element fixed on the controller 3. The photosensitive element is connected to an encoder. The Hall element is used to detect changes in the external light source, and the encoder outputs an analog quantity to the controller 3 according to the change law of the external light source. Similarly, analog quantities are output through changes in light, and then unlocking is performed.

[0040] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

[0041] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy and purpose that the present invention can achieve, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention.

[0042] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it can also be indirectly connected to the other element through an intermediate element.

[0043] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A commodity anti-theft device, characterized in that: include: Housing (1); A mounting assembly (2) is arranged on the housing (1) and is used to fix the housing (1) on the outer packaging (7) of the product; A controller (3) is arranged in the housing (1); A radar component (31) connected to the controller (3); the radar component (31) is used to send a radar signal and detect the presence of a commodity in the commodity outer packaging (7) based on the radar signal; and An alarm component (4) is connected to the controller (3) and is used to trigger an alarm when the radar component (31) fails to detect the commodity.

2. A commodity anti-theft device according to claim 1, characterized in that: The housing (1) is further provided with a locking component (5) and an unlocking component (6); the locking component (5) is connected to the controller (3) and is used to monitor the fixing state of the housing (1) when the housing (1) is fixed on the outer packaging (7) of the commodity, and to cause the alarm component (4) to trigger an alarm when the housing (1) is detached from the outer packaging (7) of the commodity; The unlocking component (6) is used to stop monitoring of the locking component (5).

3. A commodity anti-theft device according to claim 2, characterized in that: The locking assembly (5) comprises a micro switch (51) fixed on the controller (3), and a movable block (52) is provided on the micro switch (51); when the housing (1) is fixed on the commodity outer packaging (7), two sides of the movable block (52) respectively abut against the commodity outer packaging (7) and the micro switch (51); when the housing (1) is detached from the commodity outer packaging (7), the movable block (52) is detached from the micro switch (51).

4. A commodity anti-theft device according to claim 3, characterized in that: The housing (1) is provided with a movable hole (53), the two ends of the movable hole (53) respectively connect the micro switch (51) and the outside of the housing (1), and the movable block (52) is provided in the movable hole (53).

5. A commodity anti-theft device according to claim 4, characterized in that: The movable hole (53) is arranged on one side of the mounting assembly (2).

6. A commodity anti-theft device according to any one of claims 2 to 5, characterized in that: The unlocking component (6) comprises a Hall element fixed on the controller (3), the Hall element being connected to an encoder, the Hall element being used to detect changes in an external magnetic field, and the encoder outputting analog quantities to the controller (3) according to the law of changes in the external magnetic field.

7. A commodity anti-theft device according to any one of claims 2 to 5, characterized in that: The unlocking component (6) comprises a photosensitive element fixed on the controller (3), the photosensitive element is connected to an encoder, the Hall element is used to detect changes in the external light source, and the encoder outputs an analog quantity to the controller (3) according to the change law of the external light source.

8. The commodity anti-theft device according to claim 1, characterized in that: The controller (3) comprises a circuit board (32), on which a processor (33), a battery (34) and a radar component (31) are fixed.

9. A commodity anti-theft device according to claim 8, characterized in that: The housing (1) comprises a base (11), a middle base (12) and an upper cover (13) which are connected in sequence; the circuit board (32) is fixed between the base (11) and the middle base (12); and the middle base (12) is provided with a replacement port (14) which is opposite to the battery (34).

10. A commodity anti-theft device according to claim 1, characterized in that: The mounting assembly (2) comprises an easy-to-pull adhesive bond fixed on one side of the housing (1), and a mounting groove (15) for mounting the easy-to-pull adhesive bond is also provided on the housing (1).

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