An acousto-magnetic anti-theft label bag

Abstract

The present invention discloses an acousto-magnetic anti-theft label bag, which comprises an acousto-magnetic anti-theft label and a bag body; the acousto-magnetic anti-theft label is arranged in the bag body; the acousto-magnetic anti-theft label includes a box body, a magnetic biasing member and 2-5 resonance sheets; the 2-5 resonance sheets are arranged in a layered manner in the box body; the magnetic biasing member is arranged in the box body or on the box body; the width of each resonance sheet is 1.6 mm - 5.3 mm; the width of the box body is greater than 2 mm and less than 15 mm; the width of the bag body is 5 - 15 mm. By using a narrow acousto-magnetic anti-theft label made of a narrowed resonance sheet and making a narrow acousto-magnetic anti-theft label bag from the narrow acousto-magnetic anti-theft label, the present invention can reduce the material cost of the acousto-magnetic anti-theft label bag and make the acousto-magnetic anti-theft label bag more delicate to expand its application range.

Description

Technical Field

[0001] The present invention relates to the technical field of acousto-magnetic anti-theft, and particularly to an acousto-magnetic anti-theft label bag. Background Art

[0002] As one of the electronic article surveillance (EAS) systems, the acousto-magnetic anti-theft system is widely used due to its excellent performance. The specific working principle of the acousto-magnetic anti-theft system is as follows: The transmitting antenna emits an alternating magnetic field. When the acousto-magnetic anti-theft label enters the alternating magnetic field (detection area), and the resonance frequency of the acousto-magnetic anti-theft label is consistent with the carrier frequency in the alternating magnetic field, due to the magneto-elastic resonance effect, the resonance sheet in the acousto-magnetic anti-theft label will generate a resonance signal under the action of the magnetic field provided by the bias sheet and is received by the receiving antenna, thereby detecting the presence of the acousto-magnetic anti-theft label. The acousto-magnetic anti-theft system generally consists of two parts: one is a detector including a transmitting antenna and a receiving antenna, which uses the transmitting antenna to emit an alternating magnetic field, forms a detection induction area between the transmitting antenna and the receiving antenna, and searches for the existence of valid labels within a specific range using the magneto-elastic resonance principle. When a valid label appears, an alarm is triggered; the other is the acousto-magnetic anti-theft label, which is mainly composed of a resonance sheet that generates magneto-mechanical resonance and a bias sheet that provides a bias magnetic field. The resonance sheet is accurately cut from a non-crystalline metal strip to a size that generates a resonance frequency of 58 kHz under the action of the bias magnetic field provided by the bias sheet, and can generate magneto-mechanical resonance in the detection area and reflect it to the receiving antenna.

[0003] Currently, the acousto-magnetic anti-theft label is put into a cloth bag to make an acousto-magnetic anti-theft label bag, which can be sewn on some soft commodities that cannot be pasted with acousto-magnetic anti-theft labels, such as coats, trousers or handbags. When a customer buys these soft commodities in a store, the store will decode the attached cloth bag label when the payment is successful. In this way, when the customer takes these soft commodities out of the store, the alarm at the door will not be triggered.

[0004] Currently, the width of the resonance sheet of the acousto-magnetic anti-theft label used to manufacture the acousto-magnetic anti-theft label bag is equal to or greater than 6 mm. Therefore, the widths of various acousto-magnetic anti-theft label bags sold on the market are approximately 16 - 22 mm, and the size cannot be made smaller. This will lead to difficulty in reducing the material cost of the acousto-magnetic anti-theft label bag, and it cannot be made more delicate, resulting in limited application scope (for example, due to the relatively large size of the acousto-magnetic anti-theft label bag, it cannot be sewn in some narrow places or lightweight clothes inside a handbag). Summary of the Invention

[0005] In view of the above problems, the object of the present invention is to provide an acousto-magnetic anti-theft label bag. By using a narrow acousto-magnetic anti-theft label made of a narrowed resonance sheet and ensuring good alarm performance, and making a narrow acousto-magnetic anti-theft label bag with the narrow acousto-magnetic anti-theft label, the material cost of the acousto-magnetic anti-theft label bag can be reduced, and the acousto-magnetic anti-theft label bag can be made more delicate to expand its application range.

[0006] To achieve the above object, an embodiment of the present invention provides an acousto-magnetic anti-theft label bag, which includes an acousto-magnetic anti-theft label and a bag body;

[0007] The acousto-magnetic anti-theft label is arranged in the bag body;

[0008] The acousto-magnetic anti-theft label includes a box body, a magnetic biasing member and 2-5 resonance sheets; the 2-5 resonance sheets are arranged in a layered manner in the box body; the magnetic biasing member is arranged in the box body or on the box body;

[0009] The width of each resonance sheet is 1.6 mm - 5.3 mm; the width of the box body is greater than 2 mm and less than 15 mm; the width of the bag body is 5 - 15 mm.

[0010] As an improvement of the above solution, the acousto-magnetic anti-theft label further includes a hard member that is non-metallic and non-magnetic to prevent the label from being bent, and the hard member is arranged in the bag body along the length direction of the bag body.

[0011] As an improvement of the above solution, the length of the hard member is 25 - 70 mm, and the width z and the thickness x of the hard member satisfy the following formula:

[0012] 0.5x + 1.5 ≤ z ≤ 0.4x + 10, where x is 1 - 10;

[0013] Among them, the units of z and x are mm.

[0014] As an improvement of the above solution, the width of the hard member is 2 - 14 mm, and the flexural rigidity y and the thickness x of the hard member satisfy the following formula:

[0015] 0.5x + 0.5 ≤ y ≤ 0.3x 2 + 0.5x + 5, where x is 1 - 10;

[0016] Among them, the unit of x is mm, and the unit of y is N / mm 2 。

[0017] As an improvement of the above solution, the hard member is in a plate-like structure or a wave-like structure.

[0018] As an improvement of the above solution, an adhesive layer is provided on one side of the rigid member; the rigid member is adhered to the inner side of the bag body through the adhesive layer, or the rigid member is adhered to the outer side of the box body through the adhesive layer.

[0019] As an improvement of the above solution, the ratio of the length of the rigid member to the length of the box body is 0.5 - 1.2.

[0020] As an improvement of the above solution, the bag body is a cloth bag; the shapes of both the bag body and the box body are long strips.

[0021] As an improvement of the above solution, the ratio of the length of the box body to the width of the box body is 1.5 - 10; the ratio of the thickness of the box body to the width of the box body is 0.05 - 0.5.

[0022] As an improvement of the above solution, the acousto - magnetic anti - theft label bag is used for sewing on soft commodities.

[0023] As an improvement of the above solution, the resonance frequency of the acousto - magnetic anti - theft label is 57.5 kHz - 58.5 kHz.

[0024] Compared with the prior art, the acousto - magnetic anti - theft label bag provided by the embodiments of the present invention has at least one of the following beneficial effects:

[0025] In the experimental process of the inventor's creative labor, it is found that the resonance signal intensity of multiple resonance chips does not linearly decrease or rapidly decrease with the decrease of width when it is less than 6 mm as commonly thought in the past technology. Instead, it decreases relatively slowly when it is more than 3.5 mm. Even when the number of resonance chips of the acousto - magnetic anti - theft label is two or more and the width of the resonance chip is 1.6 mm, it can still maintain relatively effective alarm performance. For example, the inventor found that the intensity of three resonance chips with a width of 4.5 mm can still maintain 95% of the resonance intensity of three resonance chips with a width of 6 mm. Therefore, the width dimension of the narrow - type acousto - magnetic anti - theft label in the embodiments of the present invention can be less than 15 mm, and through testing, it has unexpected technical effects and can still be used in current commercial alarm devices. Moreover, since the acousto - magnetic anti - theft label bag in the embodiments of the present invention is made based on the above - mentioned narrow - type acousto - magnetic anti - theft label, the width of the acousto - magnetic anti - theft label bag in the embodiments of the present invention can be 5 - 15 mm. Through the above analysis, it can be seen that the embodiments of the present invention use a narrow - type acousto - magnetic anti - theft label made of narrowed resonance chips, and make a narrow - type acousto - magnetic anti - theft label bag through the narrow - type acousto - magnetic anti - theft label, which can reduce the material cost of the acousto - magnetic anti - theft label bag and make the acousto - magnetic anti - theft label bag more delicate and expand its application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions of the present invention, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the first type of acousto-magnetic anti-theft label bag provided by an embodiment of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the first type of acousto-magnetic anti-theft label provided by an embodiment of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the second type of acousto-magnetic anti-theft label provided by an embodiment of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the second type of acousto-magnetic anti-theft label bag provided by an embodiment of the present invention;

[0031] Figure 5 It is a schematic structural diagram of the third type of acousto-magnetic anti-theft label bag provided by an embodiment of the present invention.

[0032] Explanation of reference numerals: 1. Bag body; 20. Box body; 21. Resonance piece; 22. Biasing member; 23. Cavity; 3. Rigid member. Specific embodiments

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the specification and claims, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present invention.

[0035] In addition, the terms "first", "second", etc. in the description and claims are only used for the purpose of differentiating the description of the same technical features, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features, nor necessarily describing the order or time sequence. The terms are interchangeable under appropriate circumstances. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0036] See Figure 1 , an embodiment of the present invention provides an acousto-magnetic anti-theft label bag, which includes an acousto-magnetic anti-theft label and a bag body 1; the acousto-magnetic anti-theft label is disposed inside the bag body 1; see Figures 2 to 3 , the acousto-magnetic anti-theft label includes a box body 20, a magnetic biasing member 22 and 2 - 5 resonance sheets 21; the 2 - 5 resonance sheets 21 are arranged in a layered manner inside the cavity 23 of the box body 20; the magnetic biasing member 22 is disposed inside the cavity 23 of the box body 20 or on the box body 20 (for example, disposed on the bottom surface of the box body 20, please see Figure 3 and Figure 4 ); the width of each resonance sheet 21 is 1.6 mm - 5.3 mm; the width of the box body 20 is greater than 2 mm and less than 15 mm; the width of the bag body 1 is 5 - 15 mm.

[0037] It can be understood that the box body 20 of the acousto-magnetic anti-theft label is disposed inside the bag body 1 along the length direction of the bag body 1.

[0038] It should be noted that the acousto-magnetic anti-theft label bag can be used for sewing on soft goods (such as clothes, shoes or handbags, etc.).

[0039] As an example, the width of the box body 20 is 7.5 mm, and the width of the bag body 1 is 7.6 mm - 10 mm.

[0040] For the convenience of understanding the narrow acousto-magnetic anti-theft label described in the embodiments of the present invention, the following six embodiments of acousto-magnetic anti-theft labels are provided here:

[0041] Embodiment 1 of the acousto-magnetic anti-theft label:

[0042] A narrow acousto-magnetic anti-theft label with multiple resonance sheets 21, including a long and narrow box body 20, resonance sheets 21 and a magnetic biasing member 22. There are 2 resonance sheets 21 inside the box body 20, and the magnetic biasing member 22 is below the 2 resonance sheets 21. The box body 20 is a plastic shell made of PS / PE composite film material. The width of the resonance sheet 21 is 4.6 mm, the length is 37.9 mm, and the thickness is 25 um. The maximum external width of the box body 20 is 7.5 mm.

[0043] The anti-theft label of this embodiment has an alarm distance of 67 cm in an Ultramax alarm of Sensormatic Corporation in the United States.

[0044] Example 2 of the acousto-magnetic anti-theft label:

[0045] A narrow acousto-magnetic anti-theft label with multiple resonance chips 21, including a long and narrow box body 20 and a magnetic biasing member 22 located inside the box body 20. Four resonance chips 21 are provided inside the box body 20. The width of the resonance chip 21 is 2.6 mm, the length is 38.2 mm, and the thickness is 37 nm. The box body 20 is a plastic shell made of PS / PE composite film material. The external width of the box body 20 is 3.8 mm, and the width of the box cover is 5.2 mm.

[0046] The anti-theft label of this embodiment has an alarm distance of 17 cm in an Ultramax alarm of Sensormatic Corporation in the United States.

[0047] Example 3 of the acousto-magnetic anti-theft label:

[0048] A narrow acousto-magnetic anti-theft label with multiple resonance chips 21, including a long and narrow box body 20 and a magnetic biasing member 22 located inside the box body 20. Three resonance chips 21 are provided in the cavity 23 of the box body 20 and above the magnetic biasing member 22. The resonance chip 21 (FeNiCoSiB-based amorphous alloy) has a width of 4.4 mm, a length of 38.4 mm, and a thickness of 2611m. The box body 20 is a plastic shell made of PS / PE composite film material. The maximum external width of the box body 20 is 6.9 mm.

[0049] The anti-theft label of this embodiment has an alarm distance of 74 cm in an Ultramax alarm of Sensormatic Corporation in the United States.

[0050] Example 4 of the acousto-magnetic anti-theft label:

[0051] A narrow acousto-magnetic anti-theft label with multiple resonance chips 21, including a long and narrow box body 20 and a magnetic biasing member 22. The magnetic biasing member 22 is located on the bottom surface of the box body 20. Three resonance chips 21 are provided in the cavity 23 of the box body 20. The resonance chip 21 has a width of 4.6 mm, a length of 37.5 mm, and a thickness of 25um. The maximum external width of the box body 20 is 7.4 mm.

[0052] The anti-theft label of this embodiment has an alarm distance of 76 cm in an Ultramax alarm of Sensormatic Corporation in the United States.

[0053] Example 5 of the acousto-magnetic anti-theft label:

[0054] A narrow type acousto-magnetic anti-theft label with multiple resonance chips 21, comprising a long and narrow box body 20 and a magnetic biasing member 22. Inside the cavity 23 of the box body 20, there are 3 resonance chips 21. The magnetic biasing member 22 in this embodiment is a rare earth sintered permanent magnet biasing magnetic strip (0.8mmX0.8mmX20mm). The biasing magnetic strip 9 is fixed to one side of the resonance chip 21, and its length direction (25mm) is parallel to the length direction of the resonance chip 21. The widths of the 3 resonance chips 21 are 2.9mm, 3.1mm, and 3.1mm respectively, the lengths are all 39mm, and the thicknesses are all 28um. The maximum external width of the box body 20 is 5.4mm.

[0055] The anti-theft label of this embodiment has an alarm distance of 28cm in an Ultramax alarm of Sensormatic Company in the United States.

[0056] Example 6 of the acousto-magnetic anti-theft label:

[0057] A narrow type acousto-magnetic anti-theft label with multiple resonance chips 21, the specific scheme is the same as that of Example 1, the difference is that: the width of the resonance chip 21 is 1.6mm, and there are a total of 5 pieces. The grade of the resonance chip 21 is 2826MB (FeNiMoB-based amorphous alloy). The length of the magnetic biasing member 22 is 34mm, the thickness is 0.05mm, and the width is 1.5mm. The maximum external width of the box body 20 is 4.6mm.

[0058] The anti-theft label of this embodiment has an alarm distance of 12cm in an Ultramax alarm of Sensormatic Company in the United States.

[0059] Example 7 of the acousto-magnetic anti-theft label:

[0060] A narrow type acousto-magnetic anti-theft label with multiple resonance chips 21, the specific scheme is the same as that of Example 1, the difference is that: the width of the resonance chip 21 is 5.3mm. The length of the magnetic biasing member 22 is 34mm, the thickness is 0.08mm, and the width is 4.0mm. The maximum external width of the box body 20 is 7.8mm.

[0061] The anti-theft label of this embodiment has an alarm distance of 79cm in an Ultramax alarm of Sensormatic Company in the United States.

[0062] Example 8 of the acousto-magnetic anti-theft label:

[0063] A narrow type acousto-magnetic anti-theft label with multiple resonance chips 21, the specific scheme is the same as that of Example 1, the difference is that: the width of one resonance chip 21 is 4.3mm, and the width of the other resonance chip 21 is 3.4mm. The maximum external width of the box body 20 is 7.5mm.

[0064] The anti-theft tag of this embodiment has an alarm distance of 55 cm in an Ultramax alarm of Sensormatic Corporation in the United States.

[0065] In summary, the narrow acoustic-magnetic anti-theft tag provided by the embodiment of the present invention, which includes 2-5 resonance pieces 21 with a width of 1.6 mm - 5.3 mm, still has relatively effective alarm performance. And the narrow acoustic-magnetic anti-theft tag of the embodiment of the present invention can be used to make an acoustic-magnetic anti-theft tag bag with a width of 5 - 15 mm.

[0066] As can be analyzed above, compared with the prior art, the acoustic-magnetic anti-theft tag bag provided by the embodiment of the present invention has at least one of the following beneficial effects:

[0067] In the experimental process of the present inventor's creative labor, it is found that the resonance signal intensity of multiple resonance pieces 21 does not linearly decrease or rapidly decrease with the decrease of the width when it is below 6 mm as commonly believed in the past technology, but rather decreases relatively slowly above 3.5 mm. Even when the number of resonance pieces 21 of the acoustic-magnetic anti-theft tag is two or more and the width of the resonance piece 21 is 1.6 mm, it can still maintain relatively effective alarm performance. For example, the present inventor found that the intensity of three resonance pieces 21 with a width of 4.5 mm can still maintain 95% of the resonance intensity of three resonance pieces 21 with a width of 6 mm. Therefore, the width dimension of the narrow acoustic-magnetic anti-theft tag of the embodiment of the present invention can be less than 15 mm, and through testing, it has unexpected technical effects and can still be used in current commercial alarms. Moreover, since the acoustic-magnetic anti-theft tag bag of the embodiment of the present invention is made based on the above-mentioned narrow acoustic-magnetic anti-theft tag, the width of the acoustic-magnetic anti-theft tag bag of the embodiment of the present invention can be 5 - 15 mm. From the above analysis, it can be seen that the embodiment of the present invention uses a narrow acoustic-magnetic anti-theft tag made of a narrowed resonance piece 21, and makes a narrow acoustic-magnetic anti-theft tag bag through the narrow acoustic-magnetic anti-theft tag, which can reduce the material cost of the acoustic-magnetic anti-theft tag bag and make the acoustic-magnetic anti-theft tag bag more delicate and expand its application range.

[0068] In the above embodiment, further, referring to Figure 5 , the acoustic-magnetic anti-theft tag further includes a hard piece 3 that is non-metallic and non-magnetic, and the hard piece 3 is arranged in the bag body 1 along the length direction of the bag body 1.

[0069] In this embodiment, by arranging the hard piece 3 in the bag body 1 along the length direction of the bag body 1, the anti-bending performance of the acoustic-magnetic anti-theft tag bag can be improved, effectively avoiding the acoustic-magnetic anti-theft tag in the acoustic-magnetic anti-theft tag bag from being easily deformed and bent and scrapped when being bent by an external force, so as to effectively prevent thieves from bending the tag to destroy the alarm performance of the tag.

[0070] Exemplarily, the rigid member 3 may be a plastic member with a certain stiffness, such as an acrylic member; the rigid member 3 may also be a glass member with a certain stiffness, such as a tempered glass member; the rigid member 3 may also be a synthetic wood board member with a certain stiffness, etc., which is not specifically limited herein.

[0071] As an example, the rigid member 3 has a plate-like structure, which can enable the rigid member 3 to have good anti-bending performance. The rigid member 3 may also have a wave structure, which can further enable the rigid member 3 to have better anti-bending performance. Of course, the rigid member 3 may also have a grid structure, a cylindrical structure or a square column structure, etc., which is not specifically limited herein.

[0072] In the above embodiment, further, the length of the rigid member 3 is 25 - 70 mm, and the width z and the thickness x of the rigid member 3 satisfy the following formula:

[0073] 0.5x + 1.5 ≤ z ≤ 0.4x + 10, where x is 1 - 10;

[0074] wherein, the units of z and x are mm.

[0075] In this embodiment, the inventor has found through in-depth research and a large amount of creative labor that when the length of the rigid member 3 is 25 - 70 mm, and the width z and the thickness x of the rigid member 3 satisfy the above formula, the rigid member 3 will have good anti-bending performance. It can be understood that the standard adopted in the embodiment of the present invention for evaluating that the rigid member 3 has good anti-bending performance is: the flexural rigidity is greater than or equal to 1 N / mm 2 .

[0076] In the above embodiment, further, when the width of the rigid member 3 is 2 - 14 mm (exemplarily, the length of the rigid member 3 is 25 - 70 mm), the flexural rigidity y and the thickness x of the rigid member 3 need to satisfy the following formula:

[0077] 0.5x + 0.5 ≤ y ≤ 0.3x 2 + 0.5x + 5, where x is 1 - 10;

[0078] wherein, the unit of x is mm, and the unit of y is N / mm 2 .

[0079] In this embodiment, the inventor has found through in-depth research and a great deal of creative labor that when the width of the rigid member 3 is 2 - 14 mm and the flexural rigidity y of the rigid member 3 and the thickness x of the rigid member 3 satisfy the above formula, the rigid member 3 will have the good anti-bending performance mentioned above (i.e., the flexural rigidity is greater than or equal to 1 N / mm 2 ).

[0080] For the convenience of understanding, the following test examples of the anti-bending performance of the rigid member 3 are provided here (taking the material of the rigid member 3 as acrylic material as an example):

[0081] Test example 1: When the length of the rigid member 3 is 20 mm, the width of the rigid member 3 is 2 mm, and the thickness of the rigid member 3 is 1 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm 2 .

[0082] Test example 2: When the length of the rigid member 3 is 20 mm, the width of the rigid member 3 is 14 mm, and the thickness of the rigid member 3 is 1 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm 2 .

[0083] Test example 3: When the length of the rigid member 3 is 20 mm, the width of the rigid member 3 is 2 mm, and the thickness of the rigid member 3 is 10 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm 2 .

[0084] Test example 4: When the length of the rigid member 3 is 20 mm, the width of the rigid member 3 is 14 mm, and the thickness of the rigid member 3 is 10 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm 2 .

[0085] Test example 5: When the length of the rigid member 3 is 60 mm, the width of the rigid member 3 is 2 mm, and the thickness of the rigid member 3 is 1 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm 2 .

[0086] Test example 6: When the length of the rigid member 3 is 60 mm, the width of the rigid member 3 is 14 mm, and the thickness of the rigid member 3 is 1 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm 2 .

[0087] Test example 7: When the length of the rigid member 3 is 60 mm, the width of the rigid member 3 is 2 mm, and the thickness of the rigid member 3 is 10 mm, the flexural rigidity of the rigid member 3 is greater than 1 N / mm2 。

[0088] Test example eight: When the length of the hard piece 3 is 60 mm, the width of the hard piece 3 is 14 mm, and the thickness of the hard piece 3 is 10 mm, the flexural rigidity of the hard piece 3 is greater than 1 N / mm 2 。

[0089] In summary, the inventor found through in-depth research and a large amount of creative labor that when the dimensions of the length, width, and thickness of the hard piece 3 meet the above formulas and numerical ranges, the hard piece 3 can have good anti-bending performance, effectively avoiding the deformation and bending of the acousto-magnetic anti-theft label in the acousto-magnetic anti-theft label bag when subjected to external force bending and scrapping, thereby effectively preventing thieves from bending the label to destroy the alarm performance of the label.

[0090] In the above embodiment, further, an adhesive layer (not shown in the figure) is provided on one side of the hard piece 3; the hard piece 3 is adhered to the inner side of the bag body 1 through the adhesive layer, or the hard piece 3 is adhered to the outer side of the box body 20 through the adhesive layer.

[0091] In this embodiment, by providing the adhesive layer on one side of the hard piece 3, it is convenient to firmly adhere the hard piece 3 to the box body 20 along the length direction of the box body 20, or firmly adhere it to a predetermined place on the bag body 1 along the length direction of the bag body 1, so that the hard piece 3 is not fixed in the bag body 1 and may be misaligned, resulting in the inability to play a good anti-bending role for the acousto-magnetic anti-theft label.

[0092] As another example, the hard piece 3 can also be directly disposed inside the box body 20 along the length direction of the box body 20.

[0093] In the above embodiment, exemplarily, the ratio of the length of the hard piece 3 to the length of the box body 20 is 0.5 - 1.2.

[0094] After research and a great deal of creative work, the inventor found that when the ratio of the length of the rigid member 3 to the length of the box body 20 is 0.5 - 1.2, the rigid member 3 can effectively play a role in resisting bending of the acousto-magnetic anti-theft label. If the length of the rigid member 3 is too short relative to the length of the box body 20, then the rigid member 3 cannot effectively play a good role in resisting bending of the acousto-magnetic anti-theft label. If the length of the rigid member 3 is too long relative to the length of the box body 20, on the one hand, it will lead to an increase in the material cost of the rigid member 3 and indirectly make it impossible to reduce the size of the length of the bag body 1. On the other hand, the too-long rigid member 3 will also affect its anti-bending performance, thus affecting the anti-bending effect of the rigid member 3 on the acousto-magnetic anti-theft label.

[0095] In the above embodiment, by way of example, the bag body 1 is a cloth bag, which is convenient for sewing the acousto-magnetic anti-theft label bag on soft goods (such as clothes, shoes or handbags, etc.). Of course, the bag body 1 can also be a leather bag with a certain toughness or even a cut-resistant plastic bag, etc., and no specific limitation is made here.

[0096] In the above embodiment, by way of example, the shapes of both the bag body 1 and the box body 20 are long strips. Of course, the shapes of the bag body 1 and the box body 20 can also be cylindrical shapes, etc., and no specific limitation is made here.

[0097] In the above embodiment, by way of example, the ratio of the length of the box body 20 to the width of the box body 20 is 1.5 - 10; the ratio of the thickness of the box body 20 to the width of the box body 20 is 0.05 - 0.5. In this way, the size of the length, width and thickness of the box body 20 is relatively small, so that the acousto-magnetic anti-theft label can be relatively small and delicate.

[0098] In the above embodiment, by way of example, the resonance frequency of the acousto-magnetic anti-theft label is 57.5 kHz - 58.5 kHz. Of course, the resonance frequency of the acousto-magnetic anti-theft label can also be less than 57.5 kHz or greater than 58.5 kHz, and no specific limitation is made here.

[0099] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An acousto-magnetic anti-theft label bag, characterized in that It includes an acousto-magnetic anti-theft tag and a bag body; The acousto-magnetic anti-theft tag is arranged inside the bag body; The acousto-magnetic anti-theft tag includes a box body, a magnetic biasing member and 2 - 5 resonance sheets; the 2 - 5 resonance sheets are arranged in layers inside the box body; the magnetic biasing member is arranged inside or on the box body; The width of each resonance sheet is 1.6 mm - 5.3 mm; the width of the box body is greater than 2 mm and less than 15 mm; the width of the bag body is 5 - 15 mm; The acousto-magnetic anti-theft tag further includes a hard member that is non-metallic and non-magnetic; the length of the hard member is 25 - 70 mm, and the width z and the thickness x of the hard member satisfy the following formula: 0.5x + 1.5 ≤ z ≤ 0.4x + 10, where x is 1 - 10; Wherein, the units of z and x are mm.

2. The acousto-magnetic anti-theft label bag according to claim 1, characterized in that The hard member is arranged inside the bag body along the length direction of the bag body.

3. The acousto-magnetic anti-theft label bag according to claim 1, characterized in that The width of the hard member is 2 - 14 mm, and the flexural rigidity y and the thickness x of the hard member satisfy the following formula: 0.5x + 0.5 ≤ y ≤ 0.3x 2 + 0.5x + 5, where x ranges from 1 to 10; Among them, the unit of x is mm, and the unit of y is N / mm 2 .

4. The acousto-magnetic anti-theft label bag according to claim 2, characterized in that The hard member is in a plate-like structure or a wave structure.

5. The acousto-magnetic anti-theft label bag according to claim 2, characterized in that An adhesive layer is provided on one side of the hard member; the hard member is adhered to the inner side of the bag body through the adhesive layer, or the hard member is adhered to the outer side of the box body through the adhesive layer.

6. The acousto-magnetic anti-theft label bag according to claim 2, characterized in that The ratio of the length of the hard member to the length of the box body is 0.5 - 1.

2.

7. The acousto-magnetic anti-theft label bag according to claim 1, characterized in that The bag body is a cloth bag; The shapes of the bag body and the box body are both long strips.

8. The acousto-magnetic anti-theft label bag according to claim 1, characterized in that The ratio of the length of the box body to the width of the box body is 1.5 - 10; The ratio of the thickness of the box body to the width of the box body is 0.05 - 0.

5.

9. The acousto-magnetic anti-theft label bag according to any one of claims 1-8, characterized in that The resonance frequency of the acousto-magnetic anti-theft tag is 57.5 kHz - 58.5 kHz.

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