Electronic lock pickproof alarm device

Abstract

The utility model provides an electronic lock pick -proof alarm device, include: contact piece, contact piece bottom fixedly connected base, be provided with spring between contact piece, spring top fixedly connected with movable link, movable link upper end fixedly connected with press piece, press piece outer surface nest sets up cover. This kind of electronic lock pick -proof alarm device, through being provided with contact piece, spring, movable link, press piece etc. Structure, its core component is conventional basic component, no complex precision assembly, whole structure is simple, assembly process is convenient, and cost is low, while simple structure reduces failure probability, reduces the cost of later period maintenance, realizes the effect of reducing cost and increasing efficiency, in addition, the adaptive design of cover through -hole and press piece makes press piece part embeds cover, can reduce external dust, moisture and other impurities direct contact internal assembly, reduce the interference of environment to core component, small volume big stroke, be applicable to the uneven influence performance and alarm device when installing various doors, zero power consumption under the physical drive state.

Description

Technical Field

[0001] This utility model relates to the field of electronic lock technology, and more specifically, to an electronic lock anti-pry alarm device. Background Technology

[0002] With the increasing demand for smart homes and security, electronic locks are widely used due to their convenience. They are locks that use electronic technology, biometric technology or wireless communication technology to unlock and manage. The core is to use non-mechanical keys, such as passwords, fingerprints, card swipes, mobile apps to complete identity verification and lock control, replacing the key unlocking mode of traditional mechanical locks.

[0003] However, existing electronic lock anti-pry alarm devices have the following problems when in use: Currently, most anti-pry alarm devices for electronic locks on the market rely on complex sensor components or precision transmission structures to trigger the alarm. This not only results in a cumbersome overall structure, increasing the difficulty of production and assembly, but also drives up raw material procurement and manufacturing costs due to the fact that many core components are customized, hindering cost reduction and efficiency improvement in mass production. Furthermore, the complex structure increases the difficulty of later maintenance, raising user costs and failing to meet the market's comprehensive needs for anti-pry devices for electronic locks.

[0004] This invention can accurately realize the anti-pry alarm function of electronic locks, and can quickly trigger the alarm when the lock is pried open by external force. It has a small size and a large stroke, which is suitable for various doors where unevenness affects the performance and alarm device. It has zero power consumption in physical drive mode. At the same time, it has a simple structure and low cost, which can reduce costs and increase efficiency. It can also reduce the contact of external dust and moisture with internal components, reduce environmental interference, and ensure long-term stable operation of the device, providing cost-effective support for the security protection of electronic locks. Summary of the Invention

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide an electronic lock anti-pry alarm device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electronic lock anti-pry alarm device, comprising: contact pieces, a base fixedly connected to the bottom of the contact pieces, a spring disposed between the contact pieces, a moving rod fixedly connected above the spring, a pressing member fixedly connected to the upper end of the moving rod, a cover being nested on the outer surface of the pressing member, the base and the cover being fixedly connected to form a complete outer shell, two contact pieces being fixedly installed on the left and right sides of the upper end of the base respectively, and arc-shaped holes being opened on the opposite surfaces of the contact pieces, a conductive piece being fixedly installed at the bottom of the moving rod, and the conductive piece being movably connected to the contact pieces.

[0007] A further preferred embodiment: a spring positioning post is fixedly installed at the middle of the upper end of the base, and the spring positioning post is located inside the spring.

[0008] A further preferred embodiment: the bottom of the spring is fixedly connected to the base.

[0009] A further preferred embodiment: the conductive piece is larger than the complete hole formed by the two arc-shaped holes.

[0010] A further preferred embodiment: a limiting ring is provided above the conductive plate, the limiting ring is fixedly connected to the moving rod, and the moving rod is movably connected to the cover.

[0011] A further preferred embodiment: the bottom of the movable rod is hollow, and the upper end of the spring is fixedly connected to the bottom of the movable rod.

[0012] A further preferred embodiment: the cover body has a through hole inside, the moving rod is movably connected to the through hole, the limiting ring is larger than the through hole, and the pressing member is smaller than the through hole.

[0013] A further preferred embodiment: the limiting ring is located above the contact piece, and the conductive piece is located below the contact piece. Beneficial effects

[0014] 1. By setting up contact pieces and conductive pieces, the contact pieces and conductive pieces form a contact engagement, ensuring that the two are reliably attached to maintain conductivity under normal conditions. When encountering external force for prying the lock, the conductive piece is displaced with the moving rod and quickly separates from the contact piece, realizing circuit disconnection and triggering alarm. The response is sensitive and the action is stable, effectively improving the timeliness of anti-pry monitoring. At the same time, the cooperation structure of the two does not require complex transmission components, simplifying the internal design of the device, reducing the probability of failure, and the elastic reset function of the spring can quickly restore the initial contact state after the external interference disappears, ensuring the continuous and stable operation of the device and providing reliable structural support for the security protection of electronic locks. 2. By setting a limiting ring, which is fixedly connected to the moving rod and is larger than the through hole of the cover, under normal conditions, it can limit the excessive upward displacement of the moving rod, ensuring that the conductive piece and the contact piece always maintain a precise contact position, avoiding component misalignment due to excessive spring force, and ensuring stable circuit conduction. When the moving rod is moved downward by a prying force, the limiting ring can prevent the moving rod from falling off the cover through hole, avoiding internal components from falling out of the preset assembly position and reducing the risk of component damage. During the process of the external force disappearing and the device resetting, the limiting ring plays a positioning role again, allowing the moving rod to drive the conductive piece to accurately return to the initial contact state, avoiding the impact of excessive reset or offset on the subsequent anti-pry monitoring function, and providing a key guarantee for the long-term stable operation of the device. 3. By incorporating a pressing component and a through hole, the pressing component, acting as a direct force-acting part, accurately receives the pressing force during lock prying and transmits it to the moving rod. This ensures that the external force is quickly converted into the displacement of the moving rod, guaranteeing timely response to the separation action of the conductive plate and the contact plate, thus improving the sensitivity of the alarm trigger. Simultaneously, the pressing component is smaller than the through hole, allowing it to smoothly pass through and transmit displacement. The through hole guides the movement trajectory of the pressing component, preventing deviation and jamming during pressing, ensuring a stable and reliable triggering process. Furthermore, the through hole partially embeds the pressing component inside the cover, reducing direct contact between external dust, moisture, and other impurities and internal components. This provides some protection for core components such as the moving rod and spring, reducing environmental interference with the device's operation. Combined with the pressing component's force-receiving function, this lays the foundation for the long-term stable operation of the anti-pry alarm function. 4. In summary, this type of electronic lock anti-pry alarm device, with its structure including contact plates, springs, moving rods, and pressing components, not only accurately achieves the anti-pry alarm function but also possesses multiple practical advantages. Its core components are conventional basic components, without complex precision parts, resulting in a simple overall structure, convenient assembly process, and low cost. Simultaneously, the simple structure reduces the probability of failure, lowers subsequent maintenance costs, and achieves cost reduction and efficiency improvement. Furthermore, the matching design of the cover's through-hole and the pressing component allows the pressing component to be partially embedded in the cover, reducing direct contact between external dust, moisture, and other impurities and internal components, minimizing environmental interference with the core components, and ensuring long-term stable operation of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the base structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the cover structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the bottom structure of the cover of this utility model.

[0019] Figure 1-4 In the middle: 1. Contact piece; 101. Arc-shaped hole; 2. Base; 201. Spring positioning post; 3. Spring; 4. Moving rod; 401. Conductor piece; 402. Limiting ring; 5. Pressing part; 6. Cover; 601. Through hole. Detailed Implementation

[0020] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0021] Please see Figure 1-4In this embodiment of the utility model, the electronic lock anti-pry alarm device includes: a contact piece 1, a base 2 fixedly connected to the bottom of the contact piece 1, a spring 3 arranged between the contact pieces 1, a moving rod 4 fixedly connected above the spring 3, a pressing member 5 fixedly connected to the upper end of the moving rod 4, a cover 6 nested on the outer surface of the pressing member 5, and the base 2 and the cover 6 fixedly connected to form a complete outer shell. There are two contact pieces 1, which are respectively fixedly installed on the left and right sides of the upper end of the base 2, and each of the contact pieces 1 has an arc-shaped hole 101 on its opposite side. A conductive piece 401 is fixedly installed at the bottom of the moving rod 4, and the conductive piece 401 is movably connected to the contact piece 1. A spring positioning post 201 is fixedly installed in the middle of the upper end of the base 2. The spring positioning post 201 is located inside the spring 3, and the bottom of the spring 3 is fixedly connected to the base 2. The conductive piece 401 is larger than the complete hole formed by the two arc-shaped holes 101. The bottom of the moving rod 4 is hollow, and the upper end of the spring 3 is fixedly connected to the bottom of the moving rod 4. Under normal conditions, when the pressing member 5 is not subjected to external force, the moving rod 4 is in its initial position under the elastic force of the spring 3. The conductive piece 401 contacts the contact area corresponding to the arc-shaped hole 101 on the two contact pieces 1, and the circuit is in a conductive state. At this time, there is no need for an alarm. When someone attempts to pry the lock and applies external force such as pressing to the pressing member 5, the pressing member 5 drives the moving rod 4 to move downward, compressing the spring 3. As the moving rod 4 moves downward, the conductive piece 401 gradually moves away from the contact area corresponding to the arc-shaped hole 101 on the two contact pieces 1, and the circuit becomes disconnected, thereby triggering an alarm signal to realize the anti-pry alarm function. Moreover, this stroke is only 3.5mm, which allows the device to respond to the prying behavior more quickly, reduce the reaction window period of illegal operation, and further improve the security sensitivity of the electronic lock. When the external force disappears, the spring 3 returns to its deformation, pushes the moving rod 4 to move upward, and drives the conductive piece 401 to contact the contact piece 1 again, and the circuit returns to the conductive state.

[0022] In this embodiment of the utility model, a limiting ring 402 is provided above the conductive piece 401. The limiting ring 402 is fixedly connected to the moving rod 4, and the moving rod 4 is movably connected to the cover 6. A through hole 601 is provided inside the cover 6, and the moving rod 4 is movably connected to the through hole 601. The limiting ring 402 is larger than the through hole 601, and the pressing member 5 is smaller than the through hole 601. The limiting ring 402 is located above the contact piece 1, and the conductive piece 401 is located below the contact piece 1. Under normal conditions, when the pressing member 5 is not subjected to external force, the spring 3 supports the moving rod 4 upward, so that the conductive piece 401 located below the contact piece 1 keeps in contact with the contact area corresponding to the arc-shaped holes 101 on the two contact pieces 1, and the circuit is in a conductive state. At this time, it is the normal circuit state where the device is not triggered. At the same time, the limiting ring 402, which is fixedly connected to the moving rod 4, is located above the contact piece 1. Because its own size is larger than the through hole 601 of the cover 6, it plays a role in limiting the excessive upward displacement of the moving rod 4, ensuring that the moving rod 4 is under the spring force. The initial position is stable, and the conductive piece 401 is in reliable contact with the contact piece 1. When someone attempts to pry the lock, they apply external force such as pressing to the pressing part 5. The size of the pressing part 5 is smaller than the through hole 601, so it can drive the moving rod 4 to move downward through the through hole 601, compressing the spring 3. As the moving rod 4 moves downward, the conductive piece 401, which was originally in contact with the contact piece 1, gradually moves away from the contact area corresponding to the arc hole 101 on the two contact pieces 1. The circuit becomes disconnected, thereby triggering an alarm signal and realizing the anti-pry alarm function. During this process, the limiting ring 402 moves downward with the moving rod. Because it is located above the contact piece 1, it can prevent the moving rod 4 from moving downward excessively. When the external force disappears, the spring 3 recovers its deformation and pushes the moving rod 4 upward, causing the conductive piece 401 to re-contact the contact piece 1. The circuit returns to the conductive state. When the moving rod moves upward, the limiting ring 402 abuts against the bottom of the through hole 601 of the cover, limiting the upward displacement of the moving rod and making the device stably return to the normal, untriggered initial state.

Claims

1. Electronic lock anti-pry alarm device, including: A contact piece (1) is fixedly connected to a base (2) at its bottom. A spring (3) is provided between the contact pieces (1). A moving rod (4) is fixedly connected above the spring (3). A pressing member (5) is fixedly connected to the upper end of the moving rod (4). A cover (6) is nested on the outer surface of the pressing member (5). The base (2) and the cover (6) are fixedly connected to form a complete outer shell. There are two contact pieces (1), which are fixedly installed on the left and right sides of the upper end of the base (2) respectively. An arc-shaped hole (101) is opened on the opposite side of the contact pieces (1). A conductive piece (401) is fixedly installed at the bottom of the moving rod (4). The conductive piece (401) is movably connected to the contact piece (1).

2. The electronic lock anti-pry alarm device according to claim 1, characterized in that: A spring positioning post (201) is fixedly installed at the middle of the upper end of the base (2), and the spring positioning post (201) is located inside the spring (3).

3. The electronic lock anti-pry alarm device according to claim 2, characterized in that: The bottom of the spring (3) is fixedly connected to the base (2).

4. The electronic lock anti-pry alarm device according to claim 1, characterized in that: The conductive piece (401) is larger than the complete hole formed by the two arc-shaped holes (101).

5. The electronic lock anti-pry alarm device according to claim 1, characterized in that: A limiting ring (402) is provided above the conductive piece (401). The limiting ring (402) is fixedly connected to the moving rod (4), and the moving rod (4) is movably connected to the cover (6).

6. The electronic lock anti-pry alarm device according to claim 1, characterized in that: The bottom of the moving rod (4) is hollow, and the upper end of the spring (3) is fixedly connected to the bottom of the moving rod (4).

7. The electronic lock anti-pry alarm device according to claim 5, characterized in that: The cover (6) has a through hole (601) inside. The moving rod (4) is movably connected to the through hole (601). The limiting ring (402) is larger than the through hole (601), and the pressing member (5) is smaller than the through hole (601).

8. The electronic lock anti-pry alarm device according to claim 7, characterized in that: The limiting ring (402) is located above the contact piece (1), and the conductive piece (401) is located below the contact piece (1).

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