An electromagnetic access control device with alarm linkage
By integrating the alarm and proximity sensor into the same housing, the electromagnetic access control device solves the problem of complex installation of traditional access control systems, achieves efficient and secure access control, and enhances intrusion detection capabilities and ease of installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HUICHEN XINZHI TECHNOLOGY CO LTD
- Filing Date
- 2025-10-16
- Publication Date
- 2026-05-26
Smart Images

Figure CN224287562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of access control equipment technology, and in particular to an electromagnetic access control device with alarm linkage. Background Technology
[0002] Traditional access control devices typically consist of an access control unit, a magnetic lock, and an alarm component. During installation, the access control unit and alarm component are usually fixed to the wall next to the door frame, while the magnetic lock needs to be installed separately on the top or side of the door frame. After installation, power and signal cables for each of the three components must be wired and connected, and the entire system must be debugged.
[0003] The problem with the above structure is that the access control identification host, magnetic lock and alarm components are installed and wired separately as independent units, which not only increases the construction complexity but also reduces the installation efficiency. Therefore, an electromagnetic access control device with alarm linkage is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide an electromagnetic access control device with alarm linkage, so as to solve one of the problems of complicated setup and inconvenient installation caused by the need for external electromagnetic locks and alarm components in the existing access control system.
[0005] This utility model discloses an electromagnetic access control device with alarm linkage, including a housing, a main control board, a camera, a facial recognition module, an electromagnetic lock, and an alarm. The camera is located on the front of the housing, and a display screen is located below the camera. An electromagnetic lock is located on one side of the housing. The main control board, the facial recognition module, and the alarm are all located in the housing. The camera and the display screen are electrically connected to the main control board through the facial recognition module. The electromagnetic lock is electrically connected to the main control board. The main control board is used to open or close the electromagnetic lock based on the judgment information obtained by the facial recognition module.
[0006] The electromagnetic lock has a mounting slot communicating with the housing. A proximity sensor is installed in the mounting slot. The proximity sensor is used to detect the distance between the electromagnetic lock and the door when the door is locked. The proximity sensor is electrically connected to the alarm through an alarm control board. The alarm control board is located inside the housing and is electrically connected to the main control board. The alarm control board is used to control the working state of the alarm based on the information received from the proximity sensor under different working states of the electromagnetic lock.
[0007] In one embodiment, preferably, the inner wall of the housing is provided with a mounting cylinder, the mounting cylinder is arranged around the mounting groove, and the proximity sensor is housed in the mounting groove and connected to the mounting cylinder.
[0008] In one embodiment, preferably, the inner wall of the mounting cylinder is provided with an internal thread structure, and the outer peripheral surface of the end near the sensor is provided with an external thread, the internal thread structure being threadedly connected to the external thread.
[0009] In one embodiment, preferably, the housing includes a lower housing and an upper housing, the upper housing being detachably connected to the lower housing, a micro switch sensor being provided inside the housing, the micro switch sensor being electrically connected to the alarm control board, the micro switch sensor including a sensing button, when the upper housing is placed over the lower housing, the upper housing abuts against the sensing button, and the micro switch sensor is in a closed state.
[0010] In one embodiment, preferably, the housing is further provided with a backup power supply, which is electrically connected to the alarm control board.
[0011] In one embodiment, preferably, the alarm includes a sound-emitting element and a light strip, the light strip being disposed on the housing and exposed to the outside, and the sound-emitting element being disposed inside the housing.
[0012] In one embodiment, preferably, the front of the housing is further provided with an infrared detector and a keypad, the infrared detector being located next to the camera and the keypad being located below the display screen.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model integrates the alarm and proximity sensor inside, which significantly improves the system security. During installation, the entire device only needs to be fixed to the door, without the need to install additional alarm components, which greatly simplifies the installation process and improves construction efficiency.
[0015] 2. This utility model's electromagnetic lock achieves attraction and separation from the metal parts on the door frame through energization and de-energization, thereby controlling the opening and closing of the door. When the electromagnetic lock is in the locked state, the proximity sensor automatically activates, monitoring the distance between the electromagnetic lock and the door in real time. If the door is pried open by external force, this distance will change, and the proximity sensor will then send a signal to the alarm control board, which will activate the alarm to sound an alarm, achieving real-time alarm linkage, effectively deterring and preventing intrusion, and enhancing system security.
[0016] 3. Since the core components such as the electromagnetic lock and the alarm are all integrated into the same housing, this utility model, compared with the traditional solution that requires separate installation of the access control host, alarm components and magnetic lock, only requires the installation of a single housing. The operation steps are significantly reduced, and the installation is more convenient and efficient. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional schematic diagram of the electromagnetic access control device provided in this embodiment of the utility model;
[0019] Figure 2 yes Figure 1 A magnified view of a portion of position A in the middle;
[0020] Figure 3 This is a disassembly diagram of the electromagnetic access control device provided in this embodiment of the utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the shell provided in an embodiment of the present invention;
[0022] Figure 5 This is a three-dimensional schematic diagram of the proximity sensor provided in this embodiment of the utility model;
[0023] Figure 6 This is a partial assembly diagram of the micro switch sensor provided in this embodiment of the utility model;
[0024] Figure 7 yes Figure 6 A magnified view of the area at position B in the middle.
[0025] The labels for the attached figures are as follows:
[0026] 1000 Electromagnetic access control device; 10 Housing; 11 Mounting cylinder; 111 Internal thread structure; 12 Upper shell; 13 Lower shell; 14 Infrared detector; 15 Password keypad; 16 Display screen; 20 Main control board; 21 Face recognition module; 30 Camera; 40 Electromagnetic lock; 41 Mounting slot; 50 Alarm; 51 Sound-emitting element; 52 Light strip; 60 Alarm control board; 70 Proximity sensor; 71 External thread; 80 Micro switch sensor; 81 Sensor button; 90 Backup power supply. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example
[0029] Reference Figure 1 - Figure 7 As shown, this utility model embodiment provides an electromagnetic access control device with alarm linkage. The electromagnetic access control device 1000 includes a housing 10, a main control board 20, a camera 30, a facial recognition module 21, an electromagnetic lock 40, and an alarm 50. The camera 30 is located on the front of the housing 10, and a display screen 16 is located below the camera 30. The electromagnetic lock 40 is located on one side of the housing 10. The main control board 20, the facial recognition module 21, and the alarm 50 are all located in the housing 10. The camera 30 and the display screen 16 are electrically connected to the main control board 20 through the facial recognition module 21, and the electromagnetic lock 40 is electrically connected to the main control board 20. The main control board 20 is used to open or close the electromagnetic lock 40 based on the judgment information obtained by the facial recognition module 21. The electromagnetic lock 40 has a mounting groove 41 communicating with the housing 10. A proximity sensor 70 is installed in the mounting groove 41. The proximity sensor 70 is used to detect the distance between the electromagnetic lock 40 and the door when the door is locked. The proximity sensor 70 is electrically connected to the alarm 50 through an alarm control board 60. The alarm control board 60 is located inside the housing 10 and is electrically connected to the main control board 20. The alarm control board 60 is used to control the working state of the alarm 50 based on the information received from the proximity sensor 70 under different working states of the electromagnetic lock 40. This application solves the problem of cumbersome setup and inconvenient installation caused by the need for external alarm components in existing access control systems. This device integrates the alarm 50 and the proximity sensor internally, significantly improving system security. During installation, only the entire device needs to be fixed to the door; no additional alarm components are required, greatly simplifying the installation process and improving construction efficiency.
[0030] Specifically, the electromagnetic lock 40 controls the opening and closing of the door by engaging and disengaging with the metal parts on the door through energization and de-energization. When the electromagnetic lock 40 is in the locked state, the proximity sensor automatically activates to monitor the distance between the electromagnetic lock 40 and the metal parts on the door in real time. If the door is pried open by an external force, this distance will change, and the proximity sensor will then send a signal to the alarm control board 60, which will activate the alarm 50 to sound an alarm, achieving real-time alarm linkage, effectively deterring and preventing intrusion, and enhancing system security. In addition, since the core components such as the electromagnetic lock 40 and the alarm 50 are integrated into the same housing 10, compared with the traditional solution that requires separate installation of the access control host, alarm components, and magnetic lock, this integrated device only requires the installation of a single housing 10, significantly reducing the number of operation steps and making installation more convenient and efficient.
[0031] In this application, the camera 30 is used to capture facial information and compare the information with the facial recognition module 21. If the comparison is correct, the main control board 20 can control the electromagnetic lock 40 to cut off the power so as to open the door. After a certain period of time, the main control board 20 will control the electromagnetic lock 40 to turn on the power again to lock the door and start the proximity sensor 70 to start detection.
[0032] In one embodiment, the inner wall of the housing 10 is provided with a mounting cylinder 11, which surrounds the mounting groove 41. The proximity sensor 70 is housed in the mounting groove 41 and connected to the mounting cylinder 11. This arrangement allows the mounting cylinder 11 to limit and fix the proximity sensor 70, improving the connection stability between the proximity sensor 70 and the housing 10, preventing the proximity sensor 70 from shifting or shaking, and ensuring the accuracy of detection.
[0033] In one embodiment, the inner wall of the mounting cylinder 11 is provided with an internal thread structure 111, and the outer circumferential surface of one end of the proximity sensor 70 is provided with an external thread 71. The internal thread structure 111 is threadedly connected to the external thread 71. With this configuration, the proximity sensor 70 is connected to the mounting cylinder 11, and the relative position of the proximity sensor 70 and the mounting groove 41 can be adjusted by rotating the proximity sensor 70. This allows the sensing end of the proximity sensor 70 to be more accurately aligned with the target area, achieving the best sensing effect and ensuring the accuracy and reliability of the distance detection.
[0034] In one embodiment, the housing 10 includes a lower housing 13 and an upper housing 12, with the upper housing 12 detachably connected to the lower housing 13. A microswitch sensor 80 is disposed within the housing 10 and electrically connected to the alarm control board 60. The microswitch sensor 80 includes a sensing button 81. When the upper housing 12 is placed over the lower housing 13, the upper housing 12 abuts against the sensing button 81, and the microswitch sensor 80 is in a closed state. With this configuration, if an assailant forcibly removes the housing 10, the upper housing 12 will loosen relative to the lower housing 13, causing it to disengage from the sensing button 81. At this point, the microswitch sensor changes from a closed state to an open state, triggering a signal to the alarm control board 60, which in turn activates the alarm 50. This structure effectively deters and prevents destructive behavior, further enhancing security.
[0035] In one embodiment, a backup power supply 90 is also provided inside the housing 10, and the backup power supply 90 is electrically connected to the alarm control board 60. With this configuration, in the event of an unexpected power outage, the backup power supply 90 can be activated to supply power to the electromagnetic access control device 1000, providing continuous power to the entire electromagnetic access control device 1000, thereby ensuring that the access control and alarm functions can still operate normally in emergency situations, effectively improving the continuous operation capability of the device.
[0036] In one embodiment, the alarm 50 includes a sound-emitting element 51 and a light strip 52. The light strip 52 is disposed on the housing 10 and exposed to the outside, while the sound-emitting element 51 is disposed inside the housing 10. With this configuration, when the alarm is triggered, the sound-emitting element can emit a high-frequency buzzing sound, while the light strip 52 cooperates by flashing light. Through the dual sound and light warning mechanism, the alarm's visibility and deterrent effect are significantly improved.
[0037] In one embodiment, the front of the housing 10 is also provided with an infrared detector 14 and a keypad 15. The infrared detector 14 is located next to the camera 30, and the keypad 15 is located below the display screen 16. With this configuration, the user can enter a password through the keypad 15 to unlock and open the electromagnetic lock 40; the infrared detector 14 can actively supplement light when the ambient light is insufficient, effectively enhancing the clarity and usability of the images captured by the camera 30, thereby improving the performance of face recognition and monitoring functions under low light conditions.
[0038] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electromagnetic access control device with alarm linkage, characterized in that, The device includes a housing (10), a main control board (20), a camera (30), a face recognition module (21), an electromagnetic lock (40), and an alarm (50). The front of the housing (10) is provided with a camera (30), and a display screen (16) is provided below the camera (30). An electromagnetic lock (40) is provided on one side of the housing (10). The main control board (20), the face recognition module (21), and the alarm (50) are all located on the housing (10). The camera (30) and the display screen (16) are electrically connected to the main control board (20) through the face recognition module (21). The electromagnetic lock (40) is electrically connected to the main control board (20). The main control board (20) is used to open or close the electromagnetic lock (40) according to the judgment information obtained by the face recognition module (21). The electromagnetic lock (40) is provided with a mounting groove (41) that communicates with the housing (10). A proximity sensor (70) is installed in the mounting groove (41). The proximity sensor (70) is used to detect the distance between the electromagnetic lock (40) and the door when the door is locked. The proximity sensor (70) is electrically connected to the alarm (50) through an alarm control board (60). The alarm control board (60) is located in the housing (10) and is electrically connected to the main control board (20). The alarm control board (60) is used to control the working state of the alarm (50) according to the information received from the proximity sensor (70) under different working states of the electromagnetic lock (40).
2. The electromagnetic access control device with alarm linkage according to claim 1, characterized in that, The inner wall of the housing (10) is provided with a mounting cylinder (11), which surrounds the mounting groove (41). The proximity sensor (70) is housed in the mounting groove (41) and connected to the mounting cylinder (11).
3. The electromagnetic access control device (1000) with alarm linkage according to claim 2, characterized in that, The inner wall of the mounting cylinder (11) is provided with an internal thread structure (111), and the outer circumferential surface of one end close to the sensor (70) is provided with an external thread (71). The internal thread structure (111) is threadedly connected to the external thread (71).
4. The electromagnetic access control device with alarm linkage according to any one of claims 1-3, characterized in that, The housing (10) includes a lower housing (13) and an upper housing (12). The upper housing (12) is detachably connected to the lower housing (13). A micro switch sensor (80) is provided inside the housing (10). The micro switch sensor (80) is electrically connected to the alarm control board (60). The micro switch sensor (80) includes a sensing button (81). When the upper housing (12) covers the lower housing (13), the upper housing (12) abuts against the sensing button (81), and the micro switch sensor (80) is in a closed state.
5. The electromagnetic access control device with alarm linkage according to any one of claims 1-3, characterized in that, The housing (10) is also equipped with a backup power supply (90), which is electrically connected to the alarm control board (60).
6. The electromagnetic access control device with alarm linkage according to any one of claims 1-3, characterized in that, The alarm (50) includes a sound-emitting element (51) and a light strip (52). The light strip (52) is disposed on the housing (10) and exposed to the outside, while the sound-emitting element (51) is disposed inside the housing (10).
7. The electromagnetic access control device with alarm linkage according to any one of claims 1-3, characterized in that, The front of the housing (10) is also provided with an infrared detector (14) and a password keypad (15). The infrared detector (14) is located next to the camera (30), and the password keypad (15) is located below the display screen (16).