Detection device with multi-channel lock opening and closing test function

Abstract

The utility model discloses a detection device with multi -passageway lockset opening and closing test function, including frame and two -way lockset of being located in frame, two -way motion platform, two -way unlocking mechanism, man -machine interface, one -way lockset, one -way motion platform, one -way unlocking mechanism and lockset clamping plate clamping mechanism. Utilize the utility model, can realize test precision and reliability greatly promote, test efficiency is improved obviously, and the manual cost is greatly reduced, and realize the judgment standard unification, eliminate artificial error.

Description

Technical Field

[0001] This utility model relates to the field of lock testing technology, specifically to a testing device with multi-channel lock opening and closing testing function. Background Technology

[0002] Currently, lock life testing machines mainly rely on stepper motors to control the locking and unlocking processes of locks. However, stepper motors use an open-loop control method, which has the following technical disadvantages:

[0003] (1) Limitations of open-loop control: Open-loop control cannot monitor the actual operating status of the motor in real time, and only relies on preset pulse signals to drive the motor to rotate. Once the lock is abnormal or malfunctions (such as mechanical jamming, load changes, etc.), the stepper motor may lose steps or even jam completely. In this case, the system cannot automatically identify whether the lock is malfunctioning or has a fault, and human intervention is required for judgment and handling.

[0004] (2) Insufficient fault diagnosis capability: Due to the lack of a feedback mechanism, existing testing machines cannot perform real-time monitoring and fault diagnosis of the lock's operating status. For example, when the lock's operating resistance increases due to wear or structural problems, the open-loop control system cannot detect this change and will continue to operate according to the preset program. This may not only cause inaccurate test data, but may also exacerbate lock damage due to continuous operation.

[0005] (3) Low test reliability and efficiency: Open-loop control is highly sensitive to environmental disturbances and load changes, which can easily lead to errors during the test. For example, external vibrations or changes in the internal friction of the lock may affect the operating accuracy of the stepper motor, thereby reducing the reliability of the test results. In addition, after a failure, the machine needs to be stopped and manually inspected, which seriously affects the test efficiency and automation level. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the present invention aims to provide a testing device with multi-channel lock opening and closing testing function.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A testing device with multi-channel lock opening and closing testing function includes a frame and two locks, two motion platforms, two unlocking mechanisms, a human-machine interface, a lock, a motion platform, an unlocking mechanism, and a lock clamping mechanism mounted on the frame. The motion platform is connected to the unlocking mechanism and the unlocking mechanism respectively. The motion platform drives the unlocking mechanism to move back and forth, moving it closer to or away from the lock. The motion platform drives the unlocking mechanism to move back and forth, moving it closer to or away from the lock. The locks are detachably clamped and fixed to the frame by the lock clamping mechanism.

[0009] The two-way unlocking mechanism and the one-way unlocking mechanism have the same structure, both including an unlocking servo motor, a vertical position adjustment mechanism, an unlocking support, and an unlocking clamp. The unlocking support is connected to the vertical position adjustment mechanism, which drives the unlocking support to move up and down. The unlocking servo motor is fixed to the unlocking support, and the output shaft of the unlocking servo motor is driven to the unlocking clamp and drives the unlocking clamp to rotate axially. In the two-way unlocking mechanism, the unlocking clamp is used to hold and fix the keys of the two locks; in the one-way unlocking mechanism, the unlocking clamp is used to hold and fix the key of the one lock.

[0010] The unlocking servo motor and its configured encoder, human-machine interface, one motion platform and two motion platforms are all connected to the control system.

[0011] Furthermore, the two-way motion platform and the one-way motion platform have the same structure, both including a horizontal moving platform, a transmission rack, a slide rail, a slider, a transmission gear, a driving synchronous pulley, a driven synchronous pulley, a transmission synchronous belt, and a motion servo motor; the output shaft of the motion servo motor is coaxially fixed with the driving synchronous pulley, the driving synchronous pulley and the driven synchronous pulley are connected by the transmission synchronous belt, the driven synchronous pulley and the transmission gear are coaxially fixed and can drive the transmission gear to rotate axially; the transmission rack is horizontally arranged in the front-back direction and meshes with the transmission gear, and the rotation of the transmission gear can drive the transmission rack to move back and forth; the slide rail is parallel to the transmission rack, and the slider is slidably mounted on the slide rail; the horizontal moving platform is fixedly connected to the transmission rack and the slider respectively; the vertical position adjustment mechanism of the two-way unlocking mechanism is connected to the horizontal moving platform of the two-way motion platform, and the vertical position adjustment mechanism of the one-way unlocking mechanism is connected to the horizontal moving platform of the one-way motion platform.

[0012] Furthermore, the vertical position adjustment mechanism includes a lead screw, an upper bracket, a vertical moving platform, a limiting sleeve, a vertical adjusting slide rail, a vertical adjusting slider, and a lower bracket; the lead screw and the vertical adjusting slide rail are both vertically arranged and parallel to each other; the vertical adjusting slider is slidably mounted on the vertical adjusting slide rail; the upper and lower ends of the lead screw are rotatably connected to the upper bracket and the lower bracket, respectively, and the upper and lower ends of the vertical adjusting slide rail are fixedly connected to the upper bracket and the lower bracket, respectively; the limiting sleeve is threadedly engaged with the lead screw and can move up and down along the lead screw; the vertical moving platform is fixedly connected to the vertical adjusting slider and the limiting sleeve, respectively; the unlocking servo motor is fixed to the vertical moving platform; the lower brackets of the two-way unlocking mechanism and the one-way unlocking mechanism are respectively fixed to the two-way moving platform and the one-way moving platform.

[0013] Furthermore, the door handle testing mechanism is located on the side of one lock away from one unlocking mechanism; the door handle testing mechanism includes a vertical movement drive mechanism, a test support, a door handle pressing and lifting fixture, a rotary servo motor, a reducer, and a fixed support; the vertical movement drive mechanism is located on top of the fixed support, which is fixed to the frame; the vertical movement drive mechanism is connected to the test support and is used to drive the test support to move up and down; the rotary servo motor is fixed to the test support, and its output shaft is connected to the door handle pressing and lifting fixture through the reducer; the door handle pressing and lifting fixture is 7-shaped, and one end of its vertical portion is connected to the reducer.

[0014] Furthermore, the detection device also includes a two-way camera system and a one-way camera system; the frame is provided with an upright support, and the two-way camera system and the one-way camera system are fixed to the upper part of the upright support. The two-way camera system is used to capture two locks and two unlocking mechanisms, and the one-way camera system is used to capture one lock and one unlocking mechanism.

[0015] Furthermore, the detection device also includes a main lock tongue opening and closing monitoring camera system, which is located on the outside of the door handle testing mechanism and is used to capture images of the main lock tongue of one lock.

[0016] Furthermore, both the two-channel and one-channel camera systems consist of a bullet camera, a camera adjustment bracket, and a camera system support. The camera adjustment bracket includes a universal joint and a telescopic rod. The universal joint is fixed to the front end of the telescopic rod, and the bullet camera is mounted on the universal joint and can rotate on it. The rear end of the telescopic rod is fixed to the upright support via the camera system support.

[0017] Furthermore, the control system employs a programmable logic controller (PLC), which has high-speed pulse output, high-speed pulse input, and I / O ports. The unlocking servo motor, motion servo motor, and rotation servo motor are all connected to the control system via high-speed pulse output. The encoders configured on the unlocking servo motor, motion servo motor, and rotation servo motor are respectively connected to the control system via high-speed pulse input. The human-machine interface is connected to the control system via I / O ports.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) Test accuracy and reliability have been greatly improved.

[0020] This invention combines a control system, a servo motor, and an encoder to achieve closed-loop control of the servo motor during lock opening and closing tests. It can monitor the position, speed, and torque changes during the lock opening and closing process in real time, ensuring that every action is performed within the allowable tolerance range. Experimental data shows that in 100,000 opening and closing tests, the position control accuracy of this invention can reach ±0.1°, far exceeding the ±1.8° of traditional open-loop stepper motor systems, and the anomaly identification accuracy is improved to over 99.5%.

[0021] (2) Testing efficiency is significantly improved and labor costs are greatly reduced.

[0022] This utility model is equipped with a dual-channel unlocking mechanism, which can simultaneously support the life test of two locks, realize multi-channel parallel testing, and the test process is fully automated, allowing for unattended operation and supporting 24-hour continuous operation.

[0023] (3) Standardize judgment criteria to eliminate human error.

[0024] Traditional manual judgment methods are affected by the operator's experience, condition, and subjective factors, resulting in poor consistency of measurement results. This invention enables fully automated testing with precise control, thus eliminating measurement errors caused by human factors. In repeated experiments, the consistency of judgment results for the same fault can reach 100%, significantly improving the fairness and reliability of the test results. Attached Figure Description

[0025] Figure 1 This is an overall schematic diagram of the detection device with multi-channel lock opening and closing testing function in an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of one unlocking mechanism and one moving platform or two unlocking mechanisms and two moving platforms in an embodiment of this utility model;

[0027] Figure 3 This is a top view of the first motion platform and the second motion platform in this embodiment of the present invention;

[0028] Figure 4 This is a front view of the vertical position adjustment mechanism in an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the door handle testing mechanism in an embodiment of this utility model. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. It should be noted that this embodiment is based on the present technical solution and provides detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to this embodiment.

[0031] This embodiment provides a testing device with multi-channel lock opening and closing testing function, such as... Figure 1-2 As shown, the system includes a frame 1 and a two-way lock 2, a two-way motion platform 4, a two-way unlocking mechanism 5, a human-machine interface 6, a one-way lock 10, a one-way motion platform 7, a one-way unlocking mechanism 9, and a lock clamping mechanism 12, all mounted on the frame 1. The one-way motion platform 7 and the two-way motion platform 4 are respectively connected to the one-way unlocking mechanism 9 and the two-way unlocking mechanism 5. The one-way motion platform 7 is used to drive the one-way unlocking mechanism 9 to move back and forth, causing the one-way unlocking mechanism 9 to move closer to or away from the one-way lock 10. The two-way motion platform 4 is used to drive the two-way unlocking mechanism 5 to move back and forth, causing the two-way unlocking mechanism 5 to move closer to or away from the two-way lock 2. The one-way lock 10 and the two-way lock 2 are respectively detachably clamped and fixed to the frame 1 by the lock clamping mechanism 12.

[0032] The two-way unlocking mechanism 5 and the one-way unlocking mechanism 9 have the same structure, both including an unlocking servo motor 100, a vertical position adjustment mechanism 101, an unlocking support 102, and an unlocking clamp 103. The unlocking support 102 is connected to the vertical position adjustment mechanism 101, which is used to drive the unlocking support 102 to move up and down. The unlocking servo motor 100 is fixed to the unlocking support 102, and the output shaft of the unlocking servo motor 100 is driven to the unlocking clamp 103 and is used to drive the unlocking clamp 103 to rotate axially. In the two-way unlocking mechanism 5, the unlocking clamp 103 is used to hold and fix the keys of the two locks. In the one-way unlocking mechanism 9, the unlocking clamp 103 is used to hold and fix the keys of the one lock.

[0033] It should be noted that in the testing device of this embodiment, the two-way unlocking mechanism 5 and the one-way unlocking mechanism 9 are two independent lock testing mechanisms. Using the two-way unlocking mechanism 5 and the one-way unlocking mechanism 9, two locks (two-way lock 2 and one-way lock 10) can be tested simultaneously without affecting each other. The two locks (two-way lock 2 and one-way lock 10) are mortise locks.

[0034] In this embodiment, as Figure 2 , 3 As shown, the two-way motion platform 4 and the one-way motion platform 7 have the same structure, both including a horizontal moving platform 104, a transmission rack 105, a slide rail 106, a slider 107, a transmission gear 108, a driving synchronous pulley 109, a driven synchronous pulley 110, a transmission synchronous belt 111, and a motion servo motor 112; the output shaft of the motion servo motor 112 is coaxially fixed with the driving synchronous pulley 109, the driving synchronous pulley 109 and the driven synchronous pulley 110 are connected by the transmission synchronous belt 111, the driven synchronous pulley 110 is coaxially fixed with the transmission gear 108 and can drive the transmission gear 108 to rotate axially; the transmission gear The rack 105 is horizontally arranged in the front-to-back direction and meshes with the transmission gear 108. When the transmission gear 108 rotates, it can drive the transmission rack 105 to move back and forth. The slide rail 106 is parallel to the transmission rack 105, and the slider 107 is slidably mounted on the slide rail 106. The horizontal moving platform 104 is fixedly connected to the transmission rack 105 and the slider 107 respectively. The up-and-down position adjustment mechanism 101 of the two-way unlocking mechanism 5 is connected to the horizontal moving platform 104 of the two-way motion platform 4, and the up-and-down position adjustment mechanism 101 of the one-way unlocking mechanism 9 is connected to the horizontal moving platform 104 of the one-way motion platform 7.

[0035] In the aforementioned two-way motion platform 4 and one-way motion platform 7, the motion servo motor 112 drives the active synchronous pulley 109 to rotate. The active synchronous pulley 109 drives the driven synchronous pulley 110 to rotate via the transmission synchronous belt 111. The driven synchronous pulley 110 further drives the transmission gear 108 to rotate. The transmission gear 108 meshes with the transmission rack 105, as follows: Figure 4 As shown, the rotation of the transmission gear 108 drives the transmission rack 105 to move back and forth, thereby driving the moving platform 104 to move back and forth together. The slide rail 106 and the slider 107 can make the movement of the horizontal moving platform 104 more stable and smooth.

[0036] The height adjustment mechanism 101 allows for the height adjustment of the unlocking clamp 103 and the unlocking servo motor 100, aligning the key held by the unlocking clamp 103 with the lock cylinder. The dual-path motion platform 4 / single-path motion platform 7 further drives the connected height adjustment mechanism 101 to move back and forth, thereby causing the corresponding unlocking servo motor 100 and unlocking clamp 103 to move towards the corresponding dual-path lock 2 / single-path lock 10, inserting the key held by the unlocking clamp 103 into the lock cylinder of the dual-path lock 2 / single-path lock 10. By driving the unlocking clamp 103 to rotate, the unlocking servo motor 100 enables the key held by the unlocking clamp 103 to complete the unlocking and locking test process.

[0037] In this embodiment, both the motion servo motor 112 and the unlocking servo motor 100 are high-precision AC servo motors, which have high positioning accuracy, fast response, and accurate speed, ensuring that the key on the unlocking clamp can accurately and reliably enter and exit the lock cylinder of the lock and complete the unlocking and locking actions.

[0038] In this embodiment, both the output shaft of the motion servo motor 112 and the unlocking servo motor 100 are equipped with encoders, and the unlocking servo motor, the motion servo motor, the encoders and the human-machine interface are all connected to the control system.

[0039] In this embodiment, as Figure 4 As shown, the vertical adjustment mechanism 101 includes a lead screw 118, an upper bracket 113, a vertical moving platform 119, a limiting sleeve 114, a vertical adjustment slide rail 115, a vertical adjustment slider 116, and a lower bracket 117. The lead screw 118 and the vertical adjustment slide rail 115 are both vertically arranged and parallel to each other. The vertical adjustment slider 116 is slidably mounted on the vertical adjustment slide rail 115. The upper and lower ends of the lead screw 118 are rotatably connected to the upper bracket 113 and the lower bracket 117, respectively. The upper and lower ends of 15 are fixedly connected to the upper bracket 113 and the lower bracket 117, respectively; the limiting sleeve 114 is threadedly engaged with the lead screw 118 and can move up and down along the lead screw 118; the upper and lower moving platform 119 is fixedly connected to the upper and lower adjusting slider 116 and the limiting sleeve 114, respectively; the unlocking servo motor 100 is fixed to the upper and lower moving platform 119; the lower brackets 117 of the two-way unlocking mechanism 5 and the one-way unlocking mechanism 9 are fixed to the two-way motion platform 7 and the one-way motion platform 4 (specifically, the horizontal moving platform 104), respectively.

[0040] A handwheel is mounted on the top of the lead screw 118. When the lead screw 118 is rotated by the handwheel, the limit sleeve 114 and the vertical moving platform 119 can be moved up and down together, thereby adjusting the height position of the unlocking servo motor 100 and the unlocking clamp 103. The vertical adjustment slider 116 and the vertical adjustment slide rail 115 make the movement of the vertical moving platform smoother and more stable.

[0041] In this embodiment, as Figure 5As shown, the testing device also includes a door handle testing mechanism 11, which is located on the side of one lock 10 away from one unlocking mechanism 9. The door handle testing mechanism 11 includes a vertical movement drive mechanism 200, a test support 201, a door handle pressing and lifting clamp 202, a rotary servo motor 203, a reducer 204, and a fixed support 205. The vertical movement drive mechanism 200 is located on top of the fixed support 205, which is fixed to the frame 1. The vertical movement drive mechanism 200 is connected to the test support 201 and is used to drive the test support 201 to move up and down. The rotary servo motor 203 is fixed to the test support 201, and its output shaft is connected to the door handle pressing and lifting clamp 202 through the reducer 204. The door handle pressing and lifting clamp 202 is 7-shaped, and one end of its vertical part is connected to the reducer 204.

[0042] After the locks for which the handle pressing and lifting life test needs to be performed are clamped and fixed as a lock 10, the test support 201 is moved up and down by the up-and-down movement drive mechanism 200. The height of the rotation servo motor 203, reducer 204, and door handle pressing and lifting clamp 202 can be adjusted to accommodate different door handle heights. When the rotation servo motor drives the door handle pressing and lifting clamp 202 to rotate downward, the door handle can be pressed down. When the door handle pressing and lifting clamp 202 is driven to rotate upward, the door handle can be lifted, thus completing the lock handle pressing and lifting life test.

[0043] It should be noted that in this embodiment, the structure of the up-down movement drive mechanism 200 is the same as the structure of the up-down position adjustment mechanism 101, see [link to documentation]. Figure 4 This will not be elaborated further here. The function of the test support 201 is the same as that of the vertical moving platform 119 of the vertical position adjustment mechanism.

[0044] Similarly, in this embodiment, the rotary servo motor 203 is a high-precision AC servo motor and is equipped with an encoder. Both the rotary servo motor 203 and its encoder are connected to the control system.

[0045] In this embodiment, the frame 1 consists of a metal frame and a top plate. The metal frame is powder-coated and painted, ensuring structural stability and reliability. The top plate is machined from 45# steel, and the dual-lock mechanism 2, dual-motion platform 4, dual-unlocking mechanism 5, single-lock mechanism 10, single-motion platform 7, single-unlocking mechanism 9, door handle testing mechanism 11, and lock clamping mechanism 12 are all integrated on the top plate.

[0046] In this embodiment, the detection device further includes a two-way camera system 3 and a one-way camera system 8; the frame 1 is provided with an upright support 14, and the two-way camera system 3 and the one-way camera system 8 are fixed to the upper part of the upright support. The two-way camera system 3 is used to capture images of two locks 2 and two unlocking mechanisms 5, and the one-way camera system 8 is used to capture images of one lock 10 and one unlocking mechanism 9.

[0047] In this embodiment, the detection device further includes a main lock tongue opening and closing monitoring camera system 13, which is located on the outside of the door handle testing mechanism 11 and is used to capture images of the main lock tongue of the lock 10.

[0048] In this embodiment, the dual-camera system 3, the single-camera system 8, and the main lock tongue opening and closing monitoring camera system 13 are all connected to the server.

[0049] The two-way camera system 3, the one-way camera system 8, and the main bolt opening and closing monitoring camera system 13 transmit the captured videos / images to the server. The server monitors the test status of the two-way unlocking mechanism 5 and the one-way unlocking mechanism 9 and the key through the two-way camera system 3 and the one-way camera system 8, and monitors the extension and retraction status of the main bolt through the main bolt opening and closing monitoring camera system 13. When the lock is locked, the main bolt is fully extended, and when the lock is unlocked, the main bolt is fully retracted.

[0050] Specifically, both the two-channel camera system 3 and the one-channel camera system 8 consist of a bullet camera, a camera adjustment bracket, and a camera system support 15. The camera adjustment bracket includes a universal joint 16 and a telescopic rod 17. The universal joint 16 is fixed to the front end of the telescopic rod 17, and the bullet camera is mounted on the universal joint 16 and can rotate on it. The rear end of the telescopic rod 17 is fixed to the upright support 14 via the camera system support 15. The bullet camera is an 8-megapixel, zoom camera. The universal joint and telescopic rod allow for adjustments to the camera's zoom, rotation, and tilt, enabling the camera to reach an optimal measurement position. The camera system support is made of aluminum alloy profiles, making it lightweight and sturdy.

[0051] In this embodiment, the control system employs a programmable logic controller (PLC), which has 5 high-speed pulse outputs, 5 high-speed pulse inputs, and several I / O ports. The unlocking servo motor, motion servo motor, and rotation servo motor are all connected to the control system via high-speed pulse outputs. Each encoder is connected to the control system via high-speed pulse inputs. The human-machine interface (HMI) 6 is connected to the control system via I / O ports. The high-speed pulse outputs are used to control the AC servo motors, the high-speed pulse inputs are used to acquire single-phase and AB-phase pulse signals to provide feedback on position and speed information, and the I / O ports are used to acquire digital sensor signals and output digital control signals. The PLC is an industrial-grade design, stable and reliable, with strong anti-interference capabilities.

[0052] In this embodiment, the human-machine interface 6 uses a color LCD display and a touch screen. It exchanges data with the control system through an RS232 serial port, and the communication protocol adopts the industry standard Modbus ASCII communication protocol.

[0053] The core of each lock life test is to control the position and speed of the AC servo motor. The control system can accurately and reliably control the AC servo motor to complete a series of position controls such as absolute positioning, relative positioning, and origin return. At the same time, the encoder on the AC servo motor feeds back position information. The control system judges whether the given position information and the position information fed back by the encoder exceed the position control tolerance, thereby judging whether the lock is abnormal.

[0054] The programmable logic controller (PLC) converts Modbus RTU protocol data into Modbus TCP protocol data via a serial port server, enabling Ethernet data exchange. The serial port server supports multiple network protocols, such as TCP, UDP, ARP, ICMP, HTTP, DNS, DHCP, SNMP, Telnet, and SSH; it has comprehensive management functions, supporting access control, rapid configuration, and online upgrades; each serial port supports four TCP or UDP session connections, supporting various operating modes including Modbus TCP, TCP Server, TCP Server, TCP Client, UDP Server, and UDP Client; and it supports web access. Additionally, a supporting management and configuration tool allows for immediate network connection of serial devices through simple settings. The network management system has a user-friendly interface and is easy to operate.

[0055] For those skilled in the art, various corresponding changes and modifications can be made based on the above technical solutions and concepts, and all such changes and modifications should be included within the protection scope of the claims of this utility model.

Claims

1. A testing device with multi-channel lock opening and closing testing function, characterized in that, The system includes a frame and, mounted on the frame, two-way locks, two-way motion platforms, two-way unlocking mechanisms, a human-machine interface, a single lock, a single motion platform, a single unlocking mechanism, and a lock clamping mechanism. The single and double motion platforms are respectively connected to the single and double unlocking mechanisms. The single motion platform drives the single unlocking mechanism to move back and forth, causing it to move closer to or away from the single lock. The double motion platform drives the double unlocking mechanism to move back and forth, causing it to move closer to or away from the double lock. The single and double locks are detachably clamped and fixed to the frame via the lock clamping mechanism. The two-way unlocking mechanism and the one-way unlocking mechanism have the same structure, both including an unlocking servo motor, a vertical position adjustment mechanism, an unlocking support, and an unlocking clamp. The unlocking support is connected to the vertical position adjustment mechanism, which drives the unlocking support to move up and down. The unlocking servo motor is fixed to the unlocking support, and the output shaft of the unlocking servo motor is driven to the unlocking clamp and drives the unlocking clamp to rotate axially. In the two-way unlocking mechanism, the unlocking clamp is used to hold and fix the keys of the two locks; in the one-way unlocking mechanism, the unlocking clamp is used to hold and fix the key of the one lock. The unlocking servo motor and its configured encoder, human-machine interface, one motion platform and two motion platforms are all connected to the control system.

2. The detection device according to claim 1, characterized in that, The two-way motion platform and the one-way motion platform have the same structure, both including a horizontal moving platform, a transmission rack, a slide rail, a slider, a transmission gear, a driving synchronous pulley, a driven synchronous pulley, a transmission synchronous belt, and a motion servo motor. The output shaft of the motion servo motor is coaxially fixed with the driving synchronous pulley. The driving synchronous pulley and the driven synchronous pulley are connected by a transmission synchronous belt. The driven synchronous pulley and the transmission gear are coaxially fixed and can drive the transmission gear to rotate axially. The transmission rack is horizontally arranged in the front-back direction and meshes with the transmission gear. When the transmission gear rotates, it can drive the transmission rack to move back and forth. The slide rail is parallel to the transmission rack, and the slider is slidably mounted on the slide rail. The horizontal moving platform is fixedly connected to the transmission rack and the slider respectively. The vertical position adjustment mechanism of the two-way unlocking mechanism is connected to the horizontal moving platform of the two-way motion platform, and the vertical position adjustment mechanism of the one-way unlocking mechanism is connected to the horizontal moving platform of the one-way motion platform.

3. The detection device according to claim 1, characterized in that, The vertical position adjustment mechanism includes a lead screw, an upper bracket, a vertical moving platform, a limiting sleeve, a vertical adjusting slide rail, a vertical adjusting slider, and a lower bracket. The lead screw and the vertical adjusting slide rail are both vertically arranged and parallel to each other. The vertical adjusting slider is slidably mounted on the vertical adjusting slide rail. The upper and lower ends of the lead screw are rotatably connected to the upper and lower brackets, respectively, and the upper and lower ends of the vertical adjusting slide rail are fixedly connected to the upper and lower brackets, respectively. The limiting sleeve is threadedly engaged with the lead screw and can move vertically along the lead screw. The vertical moving platform is fixedly connected to the vertical adjusting slider and the limiting sleeve, respectively. The unlocking servo motor is fixed to the vertical moving platform. The lower brackets of the two-way unlocking mechanism and the one-way unlocking mechanism are respectively fixed to the two-way moving platform and the one-way moving platform.

4. The detection device according to claim 2, characterized in that, The door handle testing mechanism is located on the side of one lock away from one unlocking mechanism; the door handle testing mechanism includes a vertical movement drive mechanism, a test support, a door handle pressing and lifting fixture, a rotary servo motor, a reducer, and a fixed support; the vertical movement drive mechanism is located on top of the fixed support, which is fixed to the frame; the vertical movement drive mechanism is connected to the test support and is used to drive the test support to move up and down; the rotary servo motor is fixed to the test support, and its output shaft is connected to the door handle pressing and lifting fixture through the reducer; the door handle pressing and lifting fixture is 7-shaped, and one end of its vertical part is connected to the reducer.

5. The detection device according to claim 1, characterized in that, It also includes a two-way camera system and a one-way camera system; the frame is provided with an upright support, and the two-way camera system and the one-way camera system are fixed to the upper part of the upright support. The two-way camera system is used to film two locks and two unlocking mechanisms, and the one-way camera system is used to film one lock and one unlocking mechanism.

6. The detection device according to claim 1, characterized in that, It also includes a camera system for monitoring the opening and closing of the main bolt of the lock, which is located on the outside of the door handle testing mechanism and is used to capture images of the main bolt of one lock.

7. The detection device according to claim 5, characterized in that, Both the two-channel and one-channel camera systems consist of a bullet camera, a camera adjustment bracket, and a camera system support. The camera adjustment bracket includes a universal joint and a telescopic rod. The universal joint is fixed to the front end of the telescopic rod, and the bullet camera is mounted on the universal joint and can rotate on it. The rear end of the telescopic rod is fixed to the vertical support via the camera system support.

8. The detection device according to claim 4, characterized in that, The control system adopts a programmable logic controller (PLC), which has high-speed pulse output, high-speed pulse input, and I / O ports. The unlocking servo motor, motion servo motor, and rotation servo motor are all connected to the control system through high-speed pulse output. The encoders configured on the unlocking servo motor, motion servo motor, and rotation servo motor are respectively connected to the control system through high-speed pulse input. The human-machine interface is connected to the control system through I / O ports.

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