Core-hidden lock tester

Abstract

The utility model provides a hidden core lock tester. The hidden core lock tester comprises a shell, the touch display screen is arranged on the upper end face of the shell and comprises a dynamic simulation window and a voltage display and setting window, and the dynamic simulation window displays a simulation animation effect according to the actual action of the hidden core lock; the voltage display and setting window is used for displaying a voltage value of the driving motor or a voltage value required by a touch input simulation working condition; the power supply is arranged in the shell and is used for generating voltage for driving the motor; the circuit board is arranged in the shell, a microcontroller electrically connected with the touch display screen and the power supply is arranged on the circuit board, and the microcontroller is electrically connected with the hidden core lock. According to the utility model, the interface of the touch display screen provides abundant action animations of the main tongue, the square tongue and the key, so that the visualization degree of the test process is improved; the operation of touch control test voltage adjustment is convenient, a real use scene can be simulated through a program, and the test is more comprehensive and practical.

Description

Technical Field

[0001] This utility model relates to the field of door lock testing technology, specifically to a tester for a hidden core lock. Background Technology

[0002] A smart door lock mainly consists of several parts, including the outer shell, circuit components, and the lock body assembly (concealed lock). The concealed lock is a key component installed in an opening inside the door, containing moving parts such as a motor, a motor-driven clutch, a master bolt, a square bolt, and a mechanical key cylinder. These components work together to enable various unlocking methods for smart door locks, such as card swiping, fingerprint recognition, password input, and even remote control via mobile phone.

[0003] To ensure that every smart lock leaving the factory possesses excellent quality and reliable performance, rigorous testing is essential before shipment. This testing goes beyond simple functional verification; it involves a comprehensive evaluation of the lock's overall performance. Specifically, the testing method primarily involves connecting the lock to its associated circuit board and simulating real-world usage scenarios, such as card swiping and mechanical key unlocking. This verifies the accuracy of the actual positions and transmission relationships of components like the bolt, latch, and mechanical key cylinder after execution of these actions, and checks whether the corresponding limit switch signals are functioning correctly.

[0004] Existing testing equipment for concealed lock cylinders can typically automate the detection of opening and closing states, but they still have certain limitations. For example, they cannot visually display the movement of components such as the main bolt, square bolt, and mechanical key lock head of the concealed lock cylinder on the testing equipment, resulting in low visualization of the testing process. Furthermore, the test voltage setting method for the motor is complex or difficult to adjust, making it difficult to simulate motor drive tests under different working conditions, and the testing functions are not comprehensive. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hidden core lock tester that can solve the problems of low visualization of the testing process and incomplete testing functions in the prior art.

[0006] To achieve the above and other objectives, this utility model is implemented through the following technical solution: This utility model proposes a hidden-core lock tester, including a housing; a touch screen display, disposed on the upper surface of the housing, including a dynamic simulation window and a voltage display and setting window, wherein the dynamic simulation window displays simulated animation effects according to the actual movement of the hidden-core lock; the voltage display and setting window is used to display the voltage value of the drive motor or the required voltage value of the simulated working condition of the touch input; a power supply, disposed within the housing, used to generate the voltage to drive the motor; and a circuit board, disposed within the housing, on which a microcontroller is disposed, electrically connected to the touch screen display and the power supply respectively, wherein the microcontroller is electrically connected to the hidden-core lock.

[0007] In one embodiment, the voltage display and setting window includes a voltage value display area and multiple touch keys for "-", "+", "low voltage", "medium voltage", and "high voltage".

[0008] In one embodiment, the touch display screen further includes a component status indicator window and a statistics window; the component status indicator window includes a motor indicator light, a main tongue indicator light, a square tongue indicator light, and a key indicator light, which are used to illuminate when the corresponding component is working to identify the component in motion; the statistics window includes a timing display, a count display, and a clear touch key, which are used to display the aging test results of the motor inside the concealed core lock.

[0009] In one embodiment, the touch display screen further includes a mode switching window, which includes manual / automatic switching touch keys, forward rotation touch keys, and reverse rotation touch keys.

[0010] In one embodiment, a mechanical button area is also included, which is disposed on the upper surface of the housing and includes at least three mechanical buttons: an automatic switching mechanical button, a forward rotation mechanical button, and a reverse rotation mechanical button. All mechanical buttons in the mechanical button area are electrically connected to the microcontroller.

[0011] In one embodiment, the DC voltage output by the power supply has an accuracy of ±0.05V.

[0012] In one embodiment, the circuit board is further provided with a communication module, a motor drive module, a current signal detection module, and a buzzer that are electrically connected to the microcontroller.

[0013] In one embodiment, a sampling resistor is connected in series in the circuit of the current signal detection module, and the resistance of the sampling resistor is 0.001Ω to 0.1Ω.

[0014] In one embodiment, the housing includes a detachably connected box and a top cover, with the touch display screen embedded in the top cover.

[0015] In one embodiment, a power interface module and a communication line interface are provided on the side wall of the housing; the power interface module is electrically connected to the power supply and is located on the side close to the power supply; the communication line interface is electrically connected to the circuit board and is located on the side close to the circuit board.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The concealed core lock tester provided by this utility model has a touch screen with a dynamic simulation window and a voltage display and setting window. The touch screen interface provides rich animations of the main bolt, the square bolt, and the key, making the testing process more intuitive and improving the visualization of the testing process. The touch screen interface makes it convenient to adjust the test voltage by touch. At the same time, it can simulate real use scenarios through programs, making the test more comprehensive and practical, and ensuring the reliability and security of the concealed core lock.

[0018] 2. The voltage display and setting window provided by this utility model can directly call the system preset voltage value, which improves the convenience of voltage setting operation;

[0019] 3. The design of the component status indicator window and statistics window in this utility model further improves the visualization of the testing process;

[0020] 4. This utility model is equipped with an external mechanical button area that is completely equivalent to the mode switching window of the touch screen, which increases the flexibility of operation and the life of the tester.

[0021] 5. The built-in power supply of this utility model has a high-precision (±0.05V) voltage output, and different test voltage values ​​can be set according to the actual working conditions of the product under test, simulating motor drive scenarios under different voltage conditions, thus improving the accuracy and practicality of the test.

[0022] 6. The buzzer on the circuit board of this utility model, together with the component status indicator window, can form an audible and visual alarm system to promptly alarm for test faults;

[0023] 7. The design of the series sampling resistor on the current signal detection module of this utility model can calculate the working current and speed of the motor based on the sampling voltage and motor characteristics;

[0024] 8. The shell of this utility model adopts a box-shaped design, and the box body and top cover can be removed for convenient equipment maintenance. Attached Figure Description

[0025] Figure 1 The diagram shown is a three-dimensional structural schematic of a core-hide lock tester according to this utility model.

[0026] Figure 2The diagram shown is a schematic diagram of the internal structure of a hidden core lock tester according to this utility model.

[0027] Figure 3 The image shown is a schematic diagram of the touch screen interface in a core lock tester according to this utility model.

[0028] Figure 4 The image shown is a physical diagram of the touch screen interface in a core lock tester according to this utility model.

[0029] Figure 5 The diagram shown is a block diagram of the main circuit modules of a hidden core lock tester according to this utility model. Detailed Implementation

[0030] Please see Figures 1-5 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0031] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0032] In this invention, the serial numbers assigned to components, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The term "connection" in this invention, unless otherwise specified, includes both direct and indirect connections. The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, encompassing not only the listed elements but also other elements not expressly listed.

[0033] like Figure 1 and Figure 2As shown, this utility model provides a hidden lock tester 1, which can be connected to the hidden lock 2 under test via a communication line (e.g., an eight-core cable). The tester 1 can apply forward or reverse voltage to the motor of the hidden lock 2 for comprehensive testing. This comprehensive testing includes automatically measuring the current and speed of the motor under different voltage conditions to determine if the motor can drive normally; measuring the rotation time and number of revolutions of the motor under different voltage conditions for motor aging testing; and simultaneously simulating the opening and closing actions of the physical hidden lock 2 on the tester 1 to determine if the various limit switches of the hidden lock 2 operate normally. In this embodiment, the hidden lock 2 has three limit switches: one for the master latch, one for the square latch, and one for the mechanical key. However, in some other embodiments, the travel switches of the hidden lock 2 may include one main bolt, two to three square bolts and one mechanical key; that is, the hidden lock tester 1 provided in this embodiment is applicable to hidden locks 2 that include at least three travel switches (i.e., at least one main bolt, one square bolt and one mechanical key).

[0034] The concealed-core lock tester 1 includes a housing 10, a touch screen display 20 and a mechanical button area 30 disposed on the upper surface of the housing 10, and a power supply 40 and a circuit board 50 disposed within the housing 10. The touch screen display 20 is used for touch-based setting of test conditions and displays simulated animations of the lock's opening and closing actions and motor operating parameters; the mechanical button area 30 serves as an equivalent substitute for the touch screen display 20's touch-based test condition setting function; the power supply 40 generates voltage capable of driving the motor within the concealed-core lock 2. (Please refer to...) Figure 5 The circuit board 50 is used to carry various electronic components that enable the comprehensive testing function of the hidden core lock tester 1, such as microcontroller (MCU) 51, communication module 52, motor drive module 53 and current signal detection module 54, etc. The circuit board 50 is electrically connected to the touch screen 20, mechanical button area 30 and power supply 40 through the microcontroller (MCU) 51.

[0035] The housing 10 can be designed as a box, including a detachably connected box body 11 and a top cover 12. The power supply 40 and circuit board 50 are built into the box body 11. A power interface module 13 and a communication line interface 14 are also provided on the side wall of the box body 11. The power interface module 13 is electrically connected to the power supply 40 and can be located on the side closer to the power supply 40, including a power interface 131 and a power switch 132. The communication line interface 14 is electrically connected to the circuit board 50 and can be located on the side closer to the circuit board 50. In this embodiment, the power interface module 13 and the communication line interface 14 are respectively located on different side walls (i.e., the upper side wall and the lower side wall) of the box body 11. However, in other embodiments, the power interface module 13 and the communication line interface 14 can be located on the same side wall of the box body 11. The touch display screen 20 and the mechanical button area 30 are embedded in the top cover 12. Removing the top cover 12 facilitates the maintenance and replacement of the touch display screen 20 and the mechanical button area 30.

[0036] Please combine Figure 3 and Figure 4 The touch display screen 20 includes a dynamic simulation window 21, a component status indicator window 22, a voltage display and setting window 23, a statistics window 24, and a mode switching window 25. The positions of each window can be adjusted according to design needs and are not specifically limited. The dynamic simulation window 21 can display simulated animation effects based on the actual movements of the hidden lock 2. The simulated animation effects include the on / off status of the main latch, square latch, and key switches under the forward or reverse rotation of the motor. The component status indicator window 22 includes motor indicator lights, main latch indicator lights, square latch indicator lights, and key indicator lights, which are used to illuminate when the corresponding components are working to indicate that the components are in motion. The voltage display and setting window 23 includes a voltage value display area, which can be used to display the voltage value of the drive motor; it also includes multiple touch keys such as "-", "+", "low voltage", "medium voltage", and "high voltage", which can be used to manually input the voltage value or directly press the "low voltage", "medium voltage", and "high voltage" touch keys to recall the corresponding voltage values ​​set in the system. The statistics window 24 includes a timing display, a count display, and a clear touch key, which is used to display the aging test results of the motor inside the hidden lock 2. The mode switching window 25 includes a manual / automatic switching touch key, a forward rotation touch key, and a reverse rotation touch key. The forward and reverse rotation keys can only be operated when the manual / automatic switching touch key is in manual mode; when the manual / automatic switching touch key is in automatic mode, the motor automatically and continuously alternates between forward and reverse rotation. Additionally, to facilitate understanding the reasons for the failure of the hidden core lock 2 test, a fault information prompt window 26 can be set on the touch display screen 20 to display fault information. The fault information in the fault information prompt window 26 can be used to clear the touch key and restore the touch display screen 20 to normal operation.

[0037] Since the mode switching window 25 is a frequently used touch window, and the lifespan of touch keys is limited, in order to effectively increase the lifespan of the hidden lock tester 1, this embodiment sets three mechanical buttons outside the touch display screen 20, equivalent to the manual / automatic switching mechanical button, the forward mechanical button, and the reverse mechanical button, which are equivalent to the mode switching window 25. That is to say, the mechanical button area 30 in this embodiment is not a necessary setting; its setting is only to increase the lifespan of the hidden lock tester 1. In addition, in some other embodiments, the mechanical button area 30 may also be provided with multiple corresponding mechanical buttons that can equivalently replace the touch keys for "-", "+", "low voltage", "medium voltage", and "high voltage" in the voltage display and setting window 23; can equivalently replace the clear mechanical button for the clear touch key in the statistics window 24; and can equivalently replace the fault information clear touch key for the fault information prompt window 26.

[0038] Power supply 40 is a CNC power supply, electrically connected to power interface module 13. It connects to 220V AC power via power interface 131 and power cord of power interface module 13, and controls the connection and disconnection of power interface 131 and power cord via power switch 132. The average power consumption of the AC power is approximately 10W, and the maximum power consumption is approximately 30W. Power supply 40 includes an AC-DC converter, which can convert 22V AC power to 0-20V DC power to drive the motor inside the lock. The DC voltage output accuracy of power supply 40 is approximately ±0.05V. Power supply 40 also includes overheat and short-circuit protection circuits, with a short-circuit current of 3A.

[0039] The circuit board 50 is equipped with a microcontroller (MCU) 51, and a communication module 52 (such as Wi-Fi), a motor drive module 53, a current signal detection module 54, and a buzzer 56, all electrically connected to the MCU 51. The MCU 51 is electrically connected to the touch screen 20 and the mechanical button area 30, respectively. The touch screen 20 and the mechanical button area 30 can transmit operating condition setting information to the MCU 51, and the MCU 51 can transmit test information to the touch screen 20 and display it on the touch screen 20. The MCU 51 communicates with the host computer and performs automatic network time synchronization through the communication module 52. The MCU 51 is also connected to the power supply 40 and the motor drive module 56. 3. The motor drive module 53 is electrically connected to the power supply 40. The microcontroller (MCU) 51 controls the power supply 40 to supply power to the motor drive module 53 and controls the motor drive module 53 to supply power to the motor. The motor drives the clutch device under different voltage conditions and tests the operation of the three limit switches corresponding to the main tongue, square tongue, and key in sequence to see if they are normal. The motor is electrically connected to the microcontroller (MCU) 51 through the communication line and the current signal detection module 54. The test information such as the motor operating current and speed is fed back to the microcontroller (MCU) 51, and the microcontroller (MCU) 51 controls the component status indication window 22, voltage display and setting window 23, statistics window 24, and fault information prompt window 26 of the touch screen 20 to display the corresponding test information. The motor drive module 53 transmits the current signal to the current signal detection module 54. A sampling resistor (small resistance, approximately 0.001Ω to 0.1Ω, which does not affect the motor's operation) is connected in series in the circuit of the current signal detection module 54. When the motor rotates, the voltage across the sampling resistor contains the DC voltage drop formed by the motor's operating current across the resistor, as well as AC components such as the back electromotive force generated by the current fluctuations caused by the motor's brushes during switching. The sampled voltage is processed in real time, and the motor's operating current and speed are calculated based on the motor's parameters (e.g., speed characteristics, load characteristics, number of pole pairs, etc.). Three limit switches are electrically connected to the microcontroller (MCU) 51 via communication lines and an isolation interface 55, respectively. The test information from the three limit switches is fed back to the MCU 51, which then controls the dynamic simulation window 21, component status indicator window 22, and fault information prompt window 26 of the touch display screen 20 to present the corresponding test information. A buzzer 56 is used to provide an audible alarm when the lock malfunctions.

[0040] Please combine Figures 1-5The specific process of testing the hidden lock 2 using the hidden lock tester 1 provided in this embodiment is as follows: Connect the hidden lock tester 1 to the hidden lock 2 under test via a communication cable (e.g., an eight-core cable) at the communication cable interface 14 of the hidden lock tester 1; connect a 220V AC power supply to the power interface 131 via a power cord; set the test voltage value on the touch screen 20 according to the actual operating conditions of the hidden lock 2 under test, simulating motor drive scenarios under different voltage (0-20V) conditions; for example, the voltage of the hidden lock 2 is 6.5V when a brand new battery is installed. The fixed high voltage can be set to 6.5-6.0V (the motor rotates crisply without jamming), the fixed medium voltage to 5.5-5.0V, and the fixed low voltage to 4.5-4.0V (the motor rotates slowly). The values ​​of high, medium, and low voltage can be adjusted, and low and high voltage limits can be set to avoid damaging the product. During testing, parameters such as the motor's forward rotation time, reverse rotation time, holding time, and stop time can be set according to the actual operating conditions of the concealed core lock 2 under test. Power-on testing under the set conditions is then performed to determine whether the motor drive is normal and whether the three-way limit switches (main bolt, square bolt, and key) operate correctly.

[0041] During motor drive testing, power switch 132 is turned on. Microcontroller (MCU) 51 controls power supply 40 to supply power to motor drive module 53 and controls motor drive module 53 to supply power to the motor. The motor is manually or automatically driven to alternately rotate forward and reverse for testing. At this time, the motor indicator light on the touch screen 20 is lit. The forward rotation drive clutch is in the "engaged" state, which establishes a mechanical connection between the handle of the hidden lock 2 and the main bolt and the square bolt. The reverse rotation drive clutch is in the "disengaged" state, which disconnects the handle of the hidden lock 2 from the main bolt and the square bolt. If the motor drive malfunctions, the motor indicator light flashes, and buzzer 56 sounds an alarm.

[0042] During the testing of the three-way limit switches (main latch, square latch, and key), the microcontroller (MCU) 51 simulated real door closing, locking, and opening scenarios (including closing, locking, and opening the door from the inside using the handle; closing, locking, and opening the door from the outside using a non-key; and opening and locking the door from the outside using a key). Specifically, when the door is closed from the inside using the handle, the main latch indicator light illuminates, and the animation in the dynamic simulation window 21 of the touch display 20 shows the main latch extending; when the door is locked from the inside using the handle, the square latch indicator light illuminates, and the animation in the dynamic simulation window 21 of the touch display 20 shows the square latch extending; when the door is opened from the inside using the handle, both the main latch and square latch indicator lights illuminate, and the animation in the dynamic simulation window 21 of the touch display 20 shows the main latch and square latch retracting; when the door is closed from the outside using a non-key, the main latch indicator light illuminates, and the animation in the dynamic simulation window 21 of the touch display 20 shows... The main latch extends; when the door is locked from the outside without a key, the latch indicator light illuminates, and the animation in the dynamic simulation window 21 of the touch screen 20 shows the latch extending; when the door is opened from the outside without a key, the main latch indicator light and the latch indicator light illuminate, and the animation in the dynamic simulation window 21 of the touch screen 20 shows the main latch and latch retracting; when the door is opened from the outside with a key (the door is not locked), the main latch indicator light and the key indicator light illuminate, and the animation in the dynamic simulation window 21 of the touch screen 20 shows the key turning and the main latch retracting; when the door is locked from the outside with a key: the latch indicator light illuminates; the animation in the dynamic simulation window 21 of the touch screen 20 shows the key turning and the latch extending; when the door is opened from the outside with a key (the door is locked), the main latch indicator light, the latch indicator light, and the key indicator light illuminate, and the animation in the dynamic simulation window 21 of the touch screen 20 shows the key turning and the main latch and latch retracting. If the limit switch malfunctions, the corresponding limit switch indicator light flashes, and the buzzer 56 provides an audible alarm.

[0043] In summary, the concealed-core lock tester 1 provided in this embodiment can not only detect whether the motor can be driven normally, but also detect whether the three-way limit switches corresponding to the main bolt, square bolt, and key are functioning normally, ensuring the reliability and security of the concealed-core lock. The concealed-core lock tester 1 supports touch operation and is equipped with external mechanical buttons that are completely equivalent to touch keys, increasing the flexibility of operation and the lifespan of the tester. The touch display screen 20 has a simple and easy-to-understand interface, is easy to operate, and provides rich animations and audio-visual indicators, making the testing process more intuitive. The concealed-core lock tester 1 integrates motor drive, bolt action, and key testing functions. By simulating real-world usage scenarios through a program, it automatically records test data, improving testing efficiency and accuracy. The concealed-core lock tester 1's built-in CNC power supply 40 has a high-precision voltage output (accuracy of approximately ±0.05V) and can set different test voltage values ​​according to the actual working conditions of the product under test, simulating motor drive scenarios under different voltage conditions, improving the accuracy and practicality of the test.

[0044] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A tester for a hidden-core lock, characterized in that, include case; A touch screen is located on the upper surface of the housing, including a dynamic simulation window and a voltage display and setting window. The dynamic simulation window displays simulated animation effects based on the actual operation of the lock core. The voltage display and setting window is used to display the voltage value of the drive motor or the required voltage value for the simulated working condition of the touch input. A power supply, located inside the housing, is used to generate the voltage to drive the motor; A circuit board is disposed inside the housing, and a microcontroller is disposed thereon, which is electrically connected to the touch screen and the power supply respectively. The microcontroller is electrically connected to the core lock.

2. The core lock tester according to claim 1, characterized in that, The voltage display and setting window includes a voltage value display area and multiple touch keys such as "-", "+", "low voltage", "medium voltage", and "high voltage".

3. The core lock tester according to claim 1, characterized in that, The touch display screen also includes a component status indicator window and a statistics window; the component status indicator window includes a motor indicator light, a main tongue indicator light, a square tongue indicator light, and a key indicator light, which are used to illuminate when the corresponding component is working to indicate that the component is in motion; the statistics window includes a timer display, a count display, and a clear touch key, which are used to display the aging test results of the motor inside the concealed core lock.

4. The core lock tester according to claim 1, characterized in that, The touch display screen also includes a mode switching window, which includes manual / automatic switching touch keys, forward rotation touch keys, and reverse rotation touch keys.

5. The core lock tester according to claim 1 or 4, characterized in that, It also includes a mechanical button area, which is located on the upper surface of the housing, and includes at least three mechanical buttons: an automatic switching mechanical button, a forward rotation mechanical button, and a reverse rotation mechanical button. All mechanical buttons in the mechanical button area are electrically connected to the microcontroller.

6. The core lock tester according to claim 1, characterized in that, The DC voltage output of the power supply has an accuracy of ±0.05V.

7. The core lock tester according to claim 1, characterized in that, The circuit board is also equipped with a communication module, a motor drive module, a current signal detection module, and a buzzer that are electrically connected to the microcontroller.

8. The core lock tester according to claim 7, characterized in that, The current signal detection module has a sampling resistor connected in series in its circuit, and the resistance of the sampling resistor is 0.001Ω to 0.1Ω.

9. The core lock tester according to claim 1, characterized in that, The housing includes a detachably connected box and a top cover, with the touch display screen embedded in the top cover.

10. The core lock tester according to claim 9, characterized in that, The side wall of the box is provided with a power interface module and a communication line interface; the power interface module is electrically connected to the power supply and is located on the side close to the power supply. The communication line interface is electrically connected to the circuit board and is located on the side close to the circuit board.

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