A kind of thin film for intelligent door, lock pickproof cutting alarm trigger

Abstract

A kind of for intelligent door, lock anti-prying anti-cutting alarm triggering film, including first insulating layer, positive metal sheet, insulating spacer, negative metal sheet and second insulating layer that are sequentially laminatedly bonded;Multiple hole structures are provided on the insulating spacer.The utility model has the following advantages compared with prior art:the utility model not only can detect the destructive behavior of metal drill bit or saw blade, but also can detect the destructive behavior of external force extrusion, pressing, for example, the behavior of prying door from door gap using tool, to realize alarm, compared with prior art, the detection of alarm triggering film to the type of destructive behavior is expanded, at the same time, the utility model is not easily damaged by destructive molecule and lead to failure, greatly improve the security of product.

Description

Technical Field

[0001] This utility model relates to the field of security, and in particular to a thin film for triggering alarms for smart doors and locks to prevent prying and cutting. Background Technology

[0002] Currently, there are two main types of common alarm triggering devices: one is infrared or radar devices, both of which consume power in standby mode; the other is contact switches, which do not consume power in standby mode, but their thickness, like that of infrared or radar devices, cannot be made very thin, all being greater than 5mm. The gaps in smart doors and locks are usually less than 4mm, making installation impossible, and the effective area is not large. How can we achieve a large effective area without consuming power?

[0003] For example, patent CN 201332794Y discloses an anti-theft alarm device for a handbag. The bag has a double-layered metal mesh with an insulating film in the middle, and the two layers are electrically connected to the positive and negative terminals of a power source. An electrical connection mechanism is provided, with one end connected to the negative terminal of a DC power source and the other end connected to a bell with a switch; the other end of the bell is connected to the positive terminal of the DC power source. This structure is effective in detecting and alarming when metal objects are cut, but when used on doors, it cannot detect and alarm when a pry bar is used to press against the door seam, or when non-metallic tools are used to press against it.

[0004] For example, patent CN 205121763U discloses a rupture alarm diaphragm, comprising an adhesive base layer, an adhesive layer, a wire base layer, a wire layer, and a touch layer arranged in sequence. The wire layer contains circuit wires, and both ends of the circuit wires have connectors. The circuit wires are arranged uniformly within the wire layer using a serpentine wiring method. In this design, the density of the circuit wires in the actual product should not be too high. Excessive wire density can cause a short circuit when the product is bent, while insufficient wire density creates large gaps between the wires, making it easier for cutting tools to create cutting gaps, reducing reliability. Furthermore, an attacker could use an insulated tool to partially straighten the circuit wires without damaging them, leaving a gap for the cutting tool.

[0005] All of the aforementioned existing technologies are susceptible to damage or failure, or are unable to detect prying actions. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a film for triggering alarms for smart doors and locks to prevent prying and cutting.

[0007] The main technical solution of the anti-pry and anti-cutting alarm triggering film for smart doors and locks provided by this utility model is as follows: it includes a first insulating layer, a positive electrode metal sheet, an insulating spacer, a negative electrode metal sheet and a second insulating layer bonded together in sequence; the insulating spacer is provided with multiple hole structures.

[0008] The anti-pry and anti-cut alarm triggering film for smart doors and locks provided by this utility model also adopts the following auxiliary technical solutions:

[0009] Preferably, the multiple hole structure is a honeycomb-shaped hole structure provided on the insulating spacer.

[0010] Preferably, the hole is any one or more combinations of circles and polygons.

[0011] Preferably, the opening ratio on the insulating spacer is 50%-90%.

[0012] Preferably, the diameter of the hole is 10mm-50mm, and more preferably 20mm.

[0013] Preferably, the thickness of the insulating spacer is 1-3 mm; more preferably 2 mm.

[0014] Preferably, the thickness of the positive electrode metal sheet is 0.1-0.5 mm, and more preferably 0.2 mm.

[0015] Preferably, the thickness of the first insulating layer is 0.1-2 mm; more preferably 0.5 mm.

[0016] Preferably, an adhesive layer is provided on the outside of the first insulating layer or the second insulating layer.

[0017] Compared with the prior art, the anti-pry and anti-cutting alarm triggering film for smart doors and locks provided by this utility model has the following advantages: This utility model can not only detect the destructive behavior of metal drill bits or saw blades, but also the destructive behavior of external force squeezing and pressing, such as the act of using tools to pry open the door through the gap, thereby realizing the alarm. Compared with the prior art, the alarm triggering film expands the types of destructive behavior it can detect. At the same time, this utility model is not easily damaged by destructive molecules and will not fail, which greatly improves the safety of the product. Attached Figure Description

[0018] Figure 1 This is an exploded view of the structure of the alarm triggering film of this utility model.

[0019] Figure 2 This is a structural diagram of the alarm triggering film of this utility model.

[0020] Figure 3 for Figure 2 A magnified view of A in the middle.

[0021] Figure 4 This is a structural diagram of the insulating spacer in this utility model.

[0022] Figure 5 This diagram illustrates the usage status of the alarm triggering film of this utility model when used in door bodies and door frames.

[0023] Figure 6 for Figure 5 A magnified view of B in the middle. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] See Figures 1 to 6 According to the embodiment of the alarm triggering film for smart doors and locks that is tamper-proof and cut-proof, provided by the utility model, it includes a first insulating layer 1, a positive electrode metal sheet 2, an insulating spacer 3, a negative electrode metal sheet 4, and a second insulating layer 5, which are sequentially bonded together in layers. The insulating spacer 3 has a plurality of holes 31. Adhesive layers are provided between adjacent layers of the above five-layer structure. In specific use, the positive electrode metal sheet 2 and the negative electrode metal sheet 4 can be switched; when connected to the positive electrode, it is the positive electrode metal sheet 2, and when connected to the negative electrode, it is the negative electrode metal sheet 4. The alarm triggering film in this utility model is connected to an alarm module, which includes a microcontroller, a buzzer, and a communication module. The positive electrode metal sheet 2 and the negative electrode metal sheet 4 in the alarm triggering film are connected to the microcontroller, which can be an 8051 microcontroller. The microcontroller is connected to the buzzer and the communication module. The above-mentioned alarm module is a relatively mature technology in the prior art, and will not be described in detail here. When the alarm trigger film is intact or not subjected to external pressure, the entire circuit is in a low-power state, saving power consumption. When a metal drill bit or saw blade cuts the alarm trigger film, a path is formed between the positive and negative metal pieces 4 through the metal drill bit or saw blade, transmitting the signal to the microcontroller, thereby triggering the buzzer to emit a sound. At the same time, the communication module sends the alarm signal to the user. When an external force presses on the alarm trigger film, the positive metal piece 2 and the negative metal piece 4 directly contact each other through the hole 31 on the insulating spacer 3, forming a path and emitting an alarm. In summary, this utility model can not only detect the destructive behavior of metal drill bits or saw blades, but also the destructive behavior of external pressure and pressing, such as using tools to pry open a door through a gap, thereby realizing an alarm. Compared with the prior art, it expands the types of destructive behavior that the alarm trigger film can detect. At the same time, this utility model is not easily damaged by destructive molecules, thus greatly improving the safety of the product.

[0026] See Figure 4 According to the above-described embodiments of the utility model, the multiple holes 31 are honeycomb-shaped holes 31 disposed on the insulating spacer 3. The insulating spacer 3 with this structure can not only support the positive electrode metal sheet 2 and the negative electrode metal sheet 4 well, and will not cause false alarms under normal circumstances, but also has a high density of holes 31, which makes the detection of destructive behaviors such as squeezing and pressing highly sensitive and reliable.

[0027] See Figure 4According to the above embodiments of the utility model, the hole 31 can be any one or more combinations of a circle and a polygon. The polygon in this solution is generally a square, rectangle, pentagon, hexagon, etc.; the shape of the hole 31 is easy to process and can be set differently according to the usage scenario of the alarm trigger film, which helps to improve the applicability of this utility model.

[0028] See Figure 4 According to the above-described embodiments of the utility model, the opening ratio on the insulating spacer 3 is 50%-90%. In this embodiment, the opening ratio is preferably 80%. This structure can not only support the positive electrode metal sheet 2 and the negative electrode metal sheet 4, but also ensure the sensitivity of detecting the destructive behavior of metal drill bits or saw blades, external extrusion, and pressing.

[0029] See Figures 1 to 4 According to the above embodiments of the utility model, the thickness of the insulating spacer 3 is 1-3mm; preferably 2mm. The diameter of the hole 31 is 10mm-50mm, preferably 20mm. The greater the thickness of the insulating spacer 3, the larger the required diameter of the hole 31; conversely, the diameter of the hole 31 can be reduced to ensure the sensitivity of detecting destructive behavior caused by external force squeezing and pressing.

[0030] See Figures 1 to 4 According to the above-described embodiments of the utility model, the thickness of the positive electrode metal sheet 2 is 0.1-0.5 mm, preferably 0.2 mm. The thickness of the positive electrode metal sheet 2 is the same as the thickness of the negative electrode metal sheet 4. The greater the thickness of the positive electrode metal sheet 2, the larger the diameter of the required hole 31, and vice versa, the diameter of the hole 31 can be reduced to ensure the sensitivity of detecting destructive behavior such as external force squeezing and pressing.

[0031] See Figure 1 and Figure 2 According to the above-described embodiments of the utility model, the thickness of the first insulating layer 1 is 0.1-2 mm; preferably 0.5 mm. The thickness of the first insulating layer 1 is the same as the thickness of the second insulating layer 5. The greater the thickness of the first insulating layer 1, the larger the diameter of the required hole 31, and vice versa, the diameter of the hole 31 can be reduced to ensure the sensitivity of detecting the destructive behavior of external force squeezing and pressing.

[0032] See Figure 1 and Figure 2 According to the above-described embodiments of the utility model, an adhesive layer (not shown in the figure) is provided on the outer side of the first insulating layer 1 or the second insulating layer 5. The adhesive layer can also be specifically provided according to the location to be adhered when the alarm trigger film is pasted. The adhesive layer facilitates the installation and use of the alarm trigger film, allowing for quick positioning during installation without manual assistance, and also making it convenient to paste onto the side of the door to detect prying at the door gap.

[0033] See Figure 5 and Figure 6 In practical use, the alarm trigger film 101 can be attached to the inside of the door 102 or between the door 102 and the lock. This can detect the damage to the door or lock caused by metal drill bits or saw blades. Alternatively, the alarm trigger film can be attached to the side of the door 102 or the door frame 103 in the door gap. This can detect the damage caused by external forces squeezing or pressing on the door gap, such as using tools to pry the door open through the gap.

[0034] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. The terms "front," "back," "left," "right," "positive," and "negative" in this solution are all terms used to describe things clearly from a certain perspective. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A tamper-proof and cut-proof alarm triggering film for smart doors and locks, characterized in that, It includes a first insulating layer, a positive electrode metal sheet, an insulating spacer, a negative electrode metal sheet, and a second insulating layer bonded together in sequence; the insulating spacer has multiple hole structures.

2. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The multiple perforated structures are honeycomb-shaped perforated structures located on the insulating diaphragm.

3. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The holes can be any one or more combinations of circles and polygons.

4. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The opening rate on the insulating spacer is 50%-90%.

5. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The diameter of the hole is 10mm-50mm.

6. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The thickness of the insulating spacer is 1-3mm.

7. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The thickness of the positive electrode metal sheet is 0.1-0.5mm.

8. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, The thickness of the first insulating layer is 0.1-2 mm.

9. The anti-pry and anti-cutting alarm triggering film for smart doors and locks according to claim 1, characterized in that, An adhesive layer is provided on the outside of the first or second insulating layer.

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