A lock with alarm function
By introducing magnets and magnetic field sensors into the lock, combined with vibration sensors, an alarm function is achieved, solving the problem of insufficient lock security, improving anti-theft performance, and maintaining ease of unlocking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU HANEX HARDWARE&ELECTRONICS LTD
- Filing Date
- 2023-11-02
- Publication Date
- 2026-04-17
AI Technical Summary
The lack of alarm functions in existing locks makes them vulnerable to being opened by criminals through forced entry, resulting in insufficient security.
Design a lock with a magnet and a magnetic field sensor. The lock controls the alarm device by sensing the magnetic field strength. Combined with a vibration sensor to detect forced opening of the lock, the lock can be activated to achieve the alarm function. During the unlocking process, the alarm device can be kept silent.
It improves the anti-theft performance of the lock, ensures that there are no false alarms when the lock is legally unlocked, and has a compact structure that is easy to use.
Smart Images
Figure CN117287092B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lock technology, and in particular to a lock with an alarm function. Background Technology
[0002] To achieve anti-theft functionality, current locks are designed to increase the difficulty of unlocking, but they lack alarm functions. Therefore, criminals can forcibly unlock locks and steal items. Thus, lock security needs to be upgraded. Summary of the Invention
[0003] This application provides a lock with an alarm function to solve the problems existing in related technologies. The technical solution is as follows:
[0004] This application provides a lock with an alarm function, including:
[0005] The lock body is connected to a first mating part;
[0006] The latch has a second mating part; the latch is movably connected to the lock body so that the second mating part can move closer to or further away from the first mating part; the second mating part is adapted to the first mating part so as to lock the lock body and the latch together.
[0007] A lock cylinder is movably mounted to the lock body so as to be able to rotate relative to the lock body;
[0008] A lever is connected to the lock cylinder and is linked by the lock cylinder; the lever engages with the first mating part and is used to move the first mating part away from the second mating part;
[0009] The lock body and the lock cylinder are each equipped with a magnet and a magnetic field sensor; the magnetic field sensor is used to sense the magnetic field strength of the magnet.
[0010] A vibration sensor is installed in the lock body;
[0011] An alarm device is installed on the lock body;
[0012] The control system is connected to the magnetic field sensor, the vibration sensor, and the alarm device.
[0013] Furthermore, when the lock body and the latch are locked together, the distance between the magnet and the magnetic field sensor is a first distance; when the lock body and the latch are unlocked, the distance between the magnet and the magnetic field sensor is a second distance; the second distance is greater than the first distance.
[0014] Furthermore, the lock cylinder has a receiving groove, the magnet is installed in the receiving groove, and the magnetic field sensor is installed in the lock body.
[0015] Furthermore, the lock body is provided with a guide groove, and the first mating part is movably inserted into the guide groove.
[0016] Furthermore, the lock with alarm function also includes an elastic element, which is installed in the guide groove and abuts against the lever. The elastic element is used to drive the first mating part closer to the second mating part.
[0017] Furthermore, the first mating part is a slider, and the second mating part is a groove.
[0018] Furthermore, the first mating part has a squeezed part, the paddle block abuts against the squeezed part, and the squeezed part is located between the paddle block and the elastic member.
[0019] Furthermore, the elastic element is a compression spring.
[0020] Furthermore, the lock body is pivotally connected to the latch via a first pivot shaft; the lock body is connected to a chain.
[0021] Furthermore, the magnetic field sensor is a Hall sensor; the alarm device is an audible alarm device.
[0022] The advantages or beneficial effects of the above technical solutions include at least the following:
[0023] 1. Based on the limitation that one of the lock body and the lock cylinder is equipped with a magnet and the other is equipped with a magnetic field sensor, the magnetic field sensor is used to sense the magnetic field strength of the magnet, so that the magnetic force can be used to control whether the alarm device is activated, so that a lock with alarm function can have an alarm function, thereby improving the anti-theft performance.
[0024] 2. Moreover, since the lock cylinder is equipped with a magnet or magnetic field sensor, the magnet and magnetic field sensor move closer or further apart during the mechanical unlocking process, so as to keep the alarm device in a silent state (i.e., it will not sound an alarm). This makes it more convenient to use and makes the overall structure more compact.
[0025] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0026] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.
[0027] Figure 1 This is a structural diagram of a lock with an alarm function;
[0028] Figure 2 for Figure 1 A partial view.
[0029] 1. Lock body; 11. Guide groove; 2. First mating part; 21. Pressed part; 3. Locking buckle; 31. Second mating part; 4. Lock cylinder; 41. Receiving groove; 5. Pulley; 6. Magnetic field sensor; 7. Elastic element; 8. First pivot shaft; 9. Chain. Detailed Implementation
[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0031] See Figure 1 and Figure 2 The lock with alarm function in this embodiment includes: lock body 1, latch 3, lock cylinder 4, lever 5, vibration sensor, alarm device and control system.
[0032] The lock body 1 is connected to a first mating part 2. In this embodiment, the first mating part 2 is preferably a slider, but it can also be a groove.
[0033] The latch 3 has a second mating part 31; in this embodiment, the second mating part 31 is preferably a groove, but it can also be a slider. The latch 3 is movably connected to the lock body 1 (e.g., hinged or linear sliding fit), so that the second mating part 31 can move closer to or further away from the first mating part 2. The second mating part 31 is adapted to the first mating part 2 to lock the lock body 1 and the latch 3 together.
[0034] The lock cylinder 4 is movably mounted on the lock body 1 so that it can rotate relative to the lock body 1.
[0035] The lever 5 is connected to the lock cylinder 4 and is linked by the lock cylinder 4; the lever 5 can be installed on the lock cylinder 4 in the form of an eccentric shaft or a cam shaft. The lever 5 cooperates with the first mating part 2 and is used to link the first mating part 2 away from the second mating part 31.
[0036] A vibration sensor is installed on lock body 1, an alarm device is installed on lock body 1, and a magnetic field sensor 6, the vibration sensor, and the alarm device are all connected to the control system. The control system can be a microcontroller, etc.
[0037] In this embodiment, one of the lock body 1 and the lock cylinder 4 is equipped with a magnet, and the other is equipped with a magnetic field sensor 6; the magnetic field sensor 6 is used to sense the magnetic field strength of the magnet. In this embodiment, the magnet is provided in the lock cylinder 4 and the magnetic induction sensor is provided in the lock body 1 as an example.
[0038] In addition, a lock with an alarm function should ideally have its own power source, such as a portable battery, preferably a rechargeable one.
[0039] When a lock with an alarm function is in operation, i.e., the first mating part 2 and the second mating part 31 are engaged to lock the lock body 1 and the latch 3 together, if the lock body 1 or the latch 3 is forcibly pried open by criminals, the vibration sensor will sense the vibration force and feed it back to the control system. The control system will then activate the alarm device to sound an alarm. The alarm method can be a siren, an alarm light, or a signal sent to the user via radio. This is an abnormal unlocking state. When the user needs to unlock normally, the user inserts the key into the lock cylinder 4 and rotates the lock cylinder 4, causing the magnet to interact with or de-interact with the magnetic field sensor 6 (in this embodiment, de-interacting is preferred). That is, after the lock cylinder 4 rotates, it moves the magnet away from the magnetic field sensor 6, thereby eliminating the interaction between the two. This disables the alarm function of the control system. Thus, even if the vibration sensor feeds a vibration signal back to the control system, the control system cannot activate the alarm device.
[0040] Obviously, based on the limitation that one of the lock body 1 and the lock cylinder 4 is equipped with a magnet, and the other is equipped with a magnetic field sensor 6, the magnetic field sensor 6 is used to sense the magnetic field strength of the magnet, thereby using magnetic force to control whether the alarm device is activated, so that a lock with an alarm function can have an alarm function, thereby improving the anti-theft performance. Moreover, based on the fact that the lock cylinder 4 is equipped with a magnet or a magnetic field sensor 6 (in this embodiment, the magnet is shown as being installed on the lock cylinder 4), that is, during the mechanical unlocking process of the lock cylinder 4, the magnet and the magnetic field sensor 6 simultaneously move closer to each other or further apart (in this embodiment, moving apart is the preferred method and is shown), so as to simultaneously keep the alarm device in a silent state (i.e., not sounding an alarm), which is more convenient to use and makes the overall structure more compact.
[0041] In this embodiment, preferably, when the lock body 1 and the latch 3 are locked together, the distance between the magnet and the magnetic field sensor 6 is a first distance; when the lock body 1 and the latch 3 are unlocked, the distance between the magnet and the magnetic field sensor 6 is a second distance; the second distance is greater than the first distance. This configuration ensures that during the mechanical unlocking process, the lock cylinder 4 simultaneously completes the movement of the magnet and the magnetic field sensor 6 away from each other; during the mechanical locking process, the lock cylinder 4 simultaneously completes the movement of the magnet and the magnetic field sensor 6 closer together, restoring their interaction and thus resuming the alarm function of the alarm device (meaning the alarm device is in the activated state, i.e., it will alarm as long as the vibration sensor responds). The advantage of this configuration is that even if criminals understand that a lock with an alarm function uses magnetic force to control whether the alarm device is activated, if they place an external movable magnet next to the lock body 1, it will only strengthen the activated state of the magnetic field sensor 6, preventing the alarm device from becoming silent. In other words, the alarm device can only be silenced when the user turns the lock cylinder 4 with the key, thereby moving the magnet away from the magnetic field sensor 6. This further improves the security performance of a lock with an alarm function.
[0042] In this embodiment, in order to make the magnet rotate more smoothly and to make it easier to lay the wires of a lock with alarm function, preferably, the lock cylinder 4 has a receiving groove 41, the magnet is installed in the receiving groove 41, and the magnetic field sensor 6 is installed in the lock body 1.
[0043] In this embodiment, preferably, the lock body 1 is provided with a guide groove 11, and the first mating part 2 is movably inserted into the guide groove 11. This arrangement guides the pressed part 21 through the guide groove 11, thereby improving the smoothness and accuracy of its sliding.
[0044] In this embodiment, preferably, a lock with an alarm function further includes an elastic element 7, which is installed in the guide groove 11 and abuts against the lever 5. The elastic element 7 is used to drive the first mating part 2 closer to the second mating part 31. With this configuration, when a person drives the lock cylinder 4 to rotate 180°, the first mating part 2 compresses the elastic element 7, thereby separating the first mating part 2 and the second mating part 31. At this time, if the key is released, under the drive of the elastic element 7, the first mating part 2 moves away from the elastic element 7, causing the lock cylinder 4 to rotate and reset, thus achieving automatic reset of the lock cylinder 4, further improving the convenience of using a lock with an alarm function.
[0045] In this embodiment, preferably, the first mating part 2 has a squeezed part 21, the lever 5 abuts against the squeezed part 21, and the squeezed part 21 is located between the lever 5 and the elastic member 7. This arrangement ensures that the lever 5 and the squeezed part 21 are always in contact, and limits the squeezed part 21 to prevent it from popping out.
[0046] In this embodiment, preferably, the elastic element 7 is a compression spring. It is understood that compression springs have good elasticity and high responsiveness. However, as an alternative, the elastic element 7 can be a rubber pad or other similar structure.
[0047] In this embodiment, preferably, the lock body 1 is pivotally connected to the latch 3 via a first pivot shaft 8. This arrangement allows the latch 3 to swing relative to the lock body 1, facilitating the closing of the latch 3 and the lock body 1. Compared to a structure where the latch 3 slides linearly relative to the lock body 1, this arrangement is smoother to use.
[0048] In this embodiment, preferably, the lock body 1 is connected to a chain 9. This arrangement, via the extension of the chain 9, allows the lock body 1 to be moved to a more distant location for use, thereby increasing its applicability.
[0049] Preferably, the magnetic field sensor 6 is a Hall sensor. The alarm device is an audible alarm device; it is understood that, compared to other products, audible alarm devices have a more obvious alarm effect and lower cost.
[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0052] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A lock with an alarm function, characterized in that, include: The lock body (1) is connected to the first mating part (2); The latch (3) has a second mating part (31); the latch (3) is movably connected to the lock body (1) so that the second mating part (31) can move closer to or further away from the first mating part (2); the second mating part (31) is adapted to the first mating part (2) so as to lock the lock body (1) and the latch (3) together; The lock cylinder (4) is movably mounted on the lock body (1) so as to be able to rotate relative to the lock body (1); A lever (5) is connected to the lock cylinder (4) and is linked by the lock cylinder (4); the lever (5) cooperates with the first mating part (2) and is used to link the first mating part (2) away from the second mating part (31); Among them, one of the lock body (1) and the lock cylinder (4) is provided with a magnet, and the other is provided with a magnetic field sensor (6); the magnetic field sensor (6) is used to sense the magnetic field strength of the magnet; A vibration sensor is installed on the lock body (1); An alarm device is installed on the lock body (1); The control system is connected to the magnetic field sensor (6), the vibration sensor and the alarm device. When the lock body (1) and the latch (3) are locked together, the distance between the magnet and the magnetic field sensor (6) is a first distance; when the lock body (1) and the latch (3) are unlocked together, the distance between the magnet and the magnetic field sensor (6) is a second distance; the second distance is greater than the first distance.
2. The lock with alarm function according to claim 1, characterized in that, The lock cylinder (4) has a receiving groove (41), the magnet is installed in the receiving groove (41), and the magnetic field sensor (6) is installed in the lock body (1).
3. The lock with alarm function according to claim 1, characterized in that, The lock body (1) is provided with a guide groove (11), and the first mating part (2) is movably inserted into the guide groove (11).
4. The lock with alarm function according to claim 3, characterized in that, The lock with alarm function also includes an elastic element (7), which is installed in the guide groove (11) and abuts against the toggle block (5). The elastic element (7) is used to drive the first mating part (2) closer to the second mating part (31).
5. The lock with alarm function according to claim 4, characterized in that, The first mating part (2) is a slider, and the second mating part (31) is a groove.
6. The lock with alarm function according to claim 5, characterized in that, The first mating part (2) has a squeezed part (21), the push block (5) abuts against the squeezed part (21), and the squeezed part (21) is located between the push block (5) and the elastic member (7).
7. The lock with alarm function according to claim 4, characterized in that, The elastic element (7) is a compression spring.
8. The lock with alarm function according to claim 1, characterized in that, The lock body (1) is pivotally connected to the latch (3) via a first pivot shaft (8); the lock body (1) is connected to a chain (9).
9. The lock with alarm function according to claim 1, characterized in that, The magnetic field sensor (6) is a Hall sensor; the alarm device is an audible alarm device.
Citation Information
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