Electronic lock with good safety

Abstract

The utility model discloses an electronic lock with good safety, which belongs to the technical field of electronic locks and comprises a locking rod and two supporting blocks, a rotating shaft is rotatably mounted on the two supporting blocks jointly, all eccentric wheels are fixedly sleeved on the peripheral surface of the rotating shaft, a sliding shaft is rotatably mounted at one end of the locking rod, the sliding shaft is slidably assembled in the eccentric wheels, and the locking rod is fixedly connected with the rotating shaft. The bottom of one supporting block is fixedly connected with a guide rod through a screw, a guide groove is formed in the guide rod, and the locking rod penetrates through the interior of the guide groove; by arranging the locking rod and the eccentric wheel and limiting the guide rail through the locking rod, abnormal movement of the guide rail and the lock cylinder can be effectively avoided, the stability of the electronic lock during locking is guaranteed, the safety of the electronic lock is improved, when the driving shaft drives unlocking, the eccentric wheel is synchronously driven to rotate to enable the locking rod to move, the guide rail is not limited any more, and unlocking is synchronously achieved; and magnet unlocking and hook unlocking are prevented from being manually operated at the same time, and the use fluency is improved.

Description

A secure electronic lock Technical Field

[0001] This utility model relates to the field of electronic lock technology, specifically to an electronic lock with good security. Background Technology

[0002] Currently, electronic locks are locks that use electronic technology to achieve locking and unlocking functions. Compared with traditional mechanical locks, they integrate technologies from multiple fields such as electronics, mechanics, and communication, and have higher security, convenience, and intelligence. The core working principle of electronic locks is based on the cooperation of electronic authentication and mechanical actuators. Electronic authentication (such as high-frequency HF [3-30M] radio signals, low-frequency LF [30-300K] radio signals, acousto-magnetic, radio, password, card swipe, fingerprint, facial recognition, etc.) triggers the control circuit, which drives the motor or electromagnetic actuator to complete the extension and retraction of the mechanical lock tongue.

[0003] For example, the patent with announcement number CN210003062U discloses a high-security smart electronic lock. This patent includes a handle lock body, a mechanical lock assembly, an electronic lock assembly, and a mechanical lock protection assembly (including a detection sensor and a locking mechanism). Under normal conditions, if the mechanical lock is detected to be in use, it will be disabled, and only the electronic lock can be used to unlock the lock, preventing the mechanical lock from being easily cracked. When the electronic lock malfunctions or the protection assembly is disabled, the mechanical lock remains effective, preventing the lock from being unable to be unlocked due to power outages, etc.

[0004] In the aforementioned patents, the electronic lock is opened and closed in two ways. However, in both of these opening and closing methods, only the opening and closing of a single lock cylinder is required, resulting in poor security. Alternatively, the lock can be opened by simply using a tool to break it open.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an electronic lock with good security, which solves the problems of poor security and inconvenient operation.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: an electronic lock with good security, including a locking rod and two support blocks. A rotating shaft is rotatably mounted on both support blocks. All eccentric wheels are fixedly sleeved on the outer circumference of the rotating shaft. A sliding shaft is rotatably mounted on one end of the locking rod. The sliding shaft is slidably assembled inside the eccentric wheels. A guide rod is fixedly connected to the bottom of one of the support blocks by screws. A guide groove is opened on the guide rod, and the locking rod passes through the inside of the guide groove.

[0008] It also includes a support plate and a guide rail. The guide rail is slidably mounted on the support plate and has a locking hole. A DC geared motor is installed on one side of the support plate. The output end of the DC geared motor is fixedly connected to a drive shaft through a coupling. A synchronous belt is installed on the outer circumference of the drive shaft and the rotating shaft through a synchronous pulley set.

[0009] Furthermore, it also includes a housing and a cover plate, a square plate is detachably mounted on one side of the cover plate, the cover plate is fixedly connected to one side of the housing, and the support plate is detachably connected to the inside of the housing.

[0010] Furthermore, a locking tongue is slidably mounted on the guide rail, a lock cylinder is slidably mounted inside the housing, a locking rod is fixedly connected to one side of the lock cylinder, and a return spring is fixedly connected to the corresponding guide rail for the locking tongue and the housing, respectively.

[0011] Furthermore, a driving cam is welded to one end of the drive shaft, and a driven cam is fixedly connected to one side of the guide rail.

[0012] Furthermore, the eccentric wheel has a groove, and one end of the locking rod is located inside the groove.

[0013] Furthermore, two sliding grooves are formed on the inner wall of the groove, and the two ends of the sliding shaft are respectively slidably connected to the inside of the corresponding sliding groove.

[0014] The beneficial effects of this application are as follows: By setting up the locking rod and the eccentric wheel, the locking rod restricts the guide rail, which can effectively prevent abnormal movement of the guide rail and the lock cylinder, ensuring the stability of the electronic lock when locking. Moreover, the electronic lock achieves double protection unlocking during the switching process of two signal protections. If the lock is not opened by our signal or by tampering, the device will identify and alarm, thus improving its security. When the drive shaft drives the unlocking, it synchronously drives the eccentric wheel to rotate, causing the locking rod to move. It no longer restricts the guide rail and realizes unlocking simultaneously, avoiding the need for manual operation of magnetic unlocking and hook unlocking at the same time, thus improving the smoothness of use. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a structural schematic diagram of the support plate of this utility model;

[0018] Figure 3 is a structural schematic diagram of the support plate of this utility model from another perspective;

[0019] Figure 4 is a schematic diagram of the structure of the active cam and locking tongue of this utility model;

[0020] Figure 5 is an enlarged view of section A in Figure 4 of this utility model.

[0021] In the diagram: 1. Housing; 2. Cover plate; 3. Square plate; 4. Support plate; 5. DC geared motor; 6. Driving cam; 7. Driven cam; 8. Guide rail; 9. Lock cylinder; 10. Locking rod; 11. Support block; 12. Rotating shaft; 13. Synchronous belt; 14. Eccentric wheel; 15. Locking rod; 16. Sliding shaft; 17. Lock tongue; 18. Guide rod; 19. Return spring. Detailed Implementation

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] As shown in Figures 1-5, this application provides an electronic lock with good security, comprising a locking rod 15 and two support blocks 11. A rotating shaft 12 is rotatably mounted on both support blocks 11. All eccentric wheels 14 are fixedly sleeved on the outer circumferential surface of the rotating shaft 12. A sliding shaft 16 is rotatably mounted on one end of the locking rod 15. The sliding shaft 16 is slidably assembled inside the eccentric wheel 14. A guide rod 18 is fixedly connected to the bottom of one of the support blocks 11 by screws. A guide groove is opened on the guide rod 18. The locking rod 15 passes through the inside of the guide groove. The lock also includes a support plate 4 and a guide rail 8. The guide rail 8 is slidably assembled on the support plate 4. A locking hole is opened on the guide rail 8. A DC geared motor 5 is mounted on one side of the support plate 4. The output end of the DC geared motor 5 is fixedly connected to a drive shaft through a coupling. A synchronous belt 13 is mounted on the outer circumferential surface of the drive shaft and the rotating shaft 12 through a synchronous pulley set.

[0024] As shown in Figures 1-5, the system also includes a housing 1 and a cover plate 2. A square plate 3 is detachably mounted on one side of the cover plate 2. The cover plate 2 is fixedly connected to one side of the housing 1. A support plate 4 is detachably connected to the inside of the housing 1. A locking tongue 17 is slidably mounted on the guide rail 8. A lock cylinder 9 is slidably mounted inside the housing 1. A locking rod 10 is fixedly connected to one side of the lock cylinder 9. A return spring 19 is fixedly connected to the locking tongue 17 and the housing 1 respectively on the corresponding guide rail 8. An active cam 6 is welded to one end of the drive shaft. A driven cam 7 is fixedly connected to one side of the guide rail 8. A groove is provided on the eccentric wheel 14. One end of the locking rod 15 is located inside the groove. Two sliding grooves are provided on the inner wall of the groove. The two ends of the sliding shaft 16 are slidably connected to the inside of the corresponding sliding grooves.

[0025] The working principle of this utility model is as follows: In order to lock the guide rail 8, the DC geared motor 5 is started, which drives the drive shaft to rotate. The drive shaft drives the rotating shaft 12 to rotate through the synchronous belt 13. The rotating shaft 12 drives the eccentric wheel 14 to rotate. The rotation of the eccentric wheel 14 causes the sliding shaft 16 to slide inside the slide groove, thereby driving the locking rod 15 to move. Due to the restriction of the guide rod 18, the locking rod 15 moves along the direction of the guide groove and engages or disengages from the locking hole opened on the guide rail 8, thereby achieving double locking and effectively improving the security of the electronic lock.

[0026] Furthermore, following the same operation as described above, the locking lever 15 is released from its restriction on the guide rail 8. At this time, the drive shaft drives the drive cam 6 to rotate, and the drive cam 6 drives the driven cam 7 to move, thereby pushing the guide rail 8 to move. Since the guide rail 8 is restricted by the support plate 4, it can only move horizontally. With the help of one of the return springs 19, the bolt 17 moves synchronously. Then the lock cylinder 9 moves to complete the unlocking action. The DC geared motor 5 reverses, the driven cam 7 is no longer restricted, and the return spring 19 drives the bolt 17 and the guide rail 8 to reset. Then the lock cylinder 9 can drive the locking lever 10 to move in the opposite direction to achieve locking.

[0027] Specifically, when unlocking, the signal sensor on the cover plate 2 detects a signal, starts the DC geared motor 5, and the drive shaft rotates to perform the unlocking operation. If the detected signal is abnormal or the lock is damaged, an alarm will be triggered. Due to the gap between the drive cam 6 and the driven cam 7, the drive cam 6 needs to rotate a certain angle before it can drive the driven cam 7. Under the action of the synchronous belt 13, the rotation of the drive shaft will drive the rotating shaft 12 to rotate. Since the two synchronous pulleys connected by the synchronous belt 13 are of different sizes, the rotation amplitude of the rotating shaft 12 will be greater than that of the drive shaft, thus ensuring that the locking lever 15 can complete the locking of the guide rail 8 before the guide rail 8 moves (the start-up of the DC geared motor 5 and the movement of the lock cylinder 9 are both driven by the radio signal of the signal sensor (model HC-SR501) on the cover plate 2). A door magnetic sensor is used and powered by a battery. This is existing technology and is not shown in the figure.

[0028] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A secure electronic lock, characterized in that, The device includes a locking rod (15) and two support blocks (11). A rotating shaft (12) is rotatably mounted on both support blocks (11). All eccentric wheels (14) are fixedly fitted onto the outer circumference of the rotating shaft (12). A sliding shaft (16) is rotatably mounted on one end of the locking rod (15), and the sliding shaft (16) is slidably fitted inside the eccentric wheels (14). A guide rod (18) is fixedly connected to the bottom of one of the support blocks (11) by screws. The guide rod (18) has an opening... The system includes a guide groove through which the locking rod (15) passes; it also includes a support plate (4) and a guide rail (8), the guide rail (8) being slidably mounted on the support plate (4), the guide rail (8) having a locking hole, a DC geared motor (5) being mounted on one side of the support plate (4), the output end of the DC geared motor (5) being fixedly connected to a drive shaft via a coupling, and a synchronous belt (13) being mounted on the outer circumference of the drive shaft and the rotating shaft (12) via a synchronous pulley set.

2. The electronic lock with good security according to claim 1, characterized in that: It also includes a housing (1) and a cover plate (2), a square plate (3) is detachably mounted on one side of the cover plate (2), the cover plate (2) is fixedly connected to one side of the housing (1), and the support plate (4) is detachably connected to the inside of the housing (1).

3. The electronic lock with good security according to claim 2, characterized in that: A locking tongue (17) is slidably mounted on the guide rail (8), and a lock cylinder (9) is slidably mounted inside the housing (1). A locking rod (10) is fixedly connected to one side of the lock cylinder (9). A return spring (19) is fixedly connected to the locking tongue (17) and the housing (1) respectively on the corresponding guide rail (8).

4. The electronic lock with good security according to claim 2, characterized in that: One end of the drive shaft is welded with a drive cam (6), and one side of the guide rail (8) is fixedly connected with a driven cam (7).

5. The electronic lock with good security according to claim 1, characterized in that: The eccentric wheel (14) has a groove, and one end of the locking rod (15) is located inside the groove.

6. The electronic lock with good security according to claim 5, characterized in that: Two sliding grooves are provided on the inner wall of the groove, and the two ends of the sliding shaft (16) are respectively slidably connected to the inside of the corresponding sliding groove.

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