Self-adapting adjusting brush palm access control machine

Abstract

The utility model discloses a kind of self-adaptive adjustment formula brush palm access control machine, it is related to access control technical field, it includes bottom shell, face shell, camera main body, driving component, electromagnetic control module, multiple filter lens integrated piece, bridging rotating part and sensing switch assembly, circuit board is fixedly arranged in face shell, camera main body is fixedly arranged in circuit board side, electromagnetic control module is fixedly connected with face shell, multiple filter lens integrated piece angle adjustable setting is between camera main body and lens seal plate, bridging rotating part is fixedly arranged in multiple filter lens integrated piece end away from camera main body and is rotatably installed on face shell, bridging rotating part and electromagnetic control module are cooperated to control multiple filter lens integrated piece and driving component transmission connection to be enabled or to be cancelled, sensing switch assembly is used to trigger the conduction of driving component and electromagnetic control module Breakdown.The utility model cooperates by electromagnetic control module and bridging rotating part, realizes passive self-adaptive locking elimination standby power consumption, avoids motor long-term load risk, and reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of access control technology, and in particular to an adaptive adjustable palm-swipe access control machine. Background Technology

[0002] Palm recognition access control devices, as an emerging biometric identification technology, have shown broad application prospects in the field of access control and security due to their advantages such as non-contact and high uniqueness. Their core technical principles mainly fall into two categories: palm vein recognition, which uses near-infrared sensing of palm vein images for authentication, and palmprint recognition, which collects and matches images of the palm surface texture.

[0003] However, in actual deployment and application, the recognition performance of palm-scanning access control devices is highly susceptible to external environmental factors, with changes and interference from ambient light being the main technical challenges. Different application scenarios, such as indoor-outdoor transition areas, strong direct sunlight, dim environments, or environments with complex artificial light sources, can lead to problems such as overexposure, decreased contrast, increased noise, or blurred key features in the acquired near-infrared images of palm veins or visible light images of palm prints. Traditional palm-scanning access control devices typically have fixed optical parameters in their image acquisition modules, such as light transmittance and filtering characteristics, making it difficult to adaptively adjust to complex and changing lighting conditions. This results in unstable image quality, which in turn significantly reduces the accuracy and processing efficiency of the recognition algorithm.

[0004] To address this issue, some products on the market have attempted to incorporate switchable filters, such as filters with different transmittances, polarizers, or filters specifically designed for certain spectra, to optimize imaging performance under varying lighting conditions. However, these solutions generally suffer from the following significant drawbacks:

[0005] 1. Size and integration issues: The mechanical structure that enables the switching of filter lenses is usually quite complex and bulky, which inevitably leads to a significant increase in the size of the camera module and even the entire device. This not only limits the installation flexibility of the device, but also increases the difficulty and cost of shell design and manufacturing.

[0006] 2. Energy consumption: Existing switching mechanisms mostly rely on motor drives. To ensure that the filter lens remains stable after switching and to prevent positional displacement due to vibration or external force from affecting imaging, the motor usually needs to be continuously powered after switching to provide locking torque. This mode will lead to unnecessary continuous power consumption in scenarios where the equipment is idle for a long time or frequently used in access control, which is not conducive to the energy saving and battery life of the equipment. 3. Structural complexity and reliability: Complex mechanical structure and continuous motor load may also bring potential failure points, affecting the long-term operational reliability and maintenance costs of the equipment. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an adaptive adjustment palm-swipe access control machine, which solves the technical problems of large size, high energy consumption and poor reliability caused by the traditional filter mechanical switching structure.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] This utility model discloses an adaptive adjustable palm-swipe access control machine, comprising:

[0010] Bottom shell;

[0011] The front shell is mounted on the bottom shell and together with the bottom shell forms a receiving cavity, and a circuit board is fixedly installed inside the receiving cavity;

[0012] The camera body is fixed to the side of the circuit board and located in the accommodating cavity. The faceplate has a clearance through hole corresponding to the camera end of the camera body. A lens sealing plate is installed on the clearance through hole. The camera body is electrically connected to the circuit board.

[0013] A driving component is disposed on the side of the camera body and electrically connected to the circuit board;

[0014] An electromagnetic control module is disposed within the accommodating cavity and fixedly connected to the face shell; the electromagnetic control module is electrically connected to the circuit board.

[0015] A multi-filter assembly is adjustable in angle and positioned between the camera body and the lens cover.

[0016] A bridging rotating component is fixedly disposed at the end of the multi-filter integrated component away from the camera body. The bridging rotating component is rotatably mounted on the faceplate and cooperates with the electromagnetic control module to control the activation or deactivation of the transmission connection between the multi-filter integrated component and the driving component.

[0017] A sensing switch assembly is disposed within the accommodating cavity and electrically connected to the circuit board, used to trigger the conduction switching of the driving component and the electromagnetic control module.

[0018] As a preferred embodiment, a first mounting plate and a second mounting plate, arranged in parallel and spaced apart, protrude from one side of the accommodating cavity. The first and second mounting plates are located beside the camera body. The driving component includes a drive motor, which is mounted on the first mounting plate. The transmission end of the drive motor passes through the first mounting plate and is fitted with a driving belt gear. A driven belt gear, which is on the same horizontal plane as the driving belt gear, is rotatably mounted on the side of the second mounting plate near the bridging rotating member. The driven belt gear is connected to the driving belt gear via a synchronous belt. The driven belt gear and the bridging rotating member are located on the same axis. The bridging rotating component is rotatably mounted on the face shell via a first rotating shaft. The electromagnetic control module is disposed between the bridging rotating component and the face shell. The multi-filter integrated component is fixedly connected to the outer periphery of the bridging rotating component. The multi-filter integrated component has a sensing clearance hole adapted to the sensing switch assembly. The sensing switch assembly includes a sensing transmitting component and a sensing receiving component. The sensing transmitting component is mounted on the side of the second mounting plate near the bridging rotating component and located next to the driven belt gear. The sensing receiving component is mounted on the face shell. The multi-filter integrated component is located between the sensing transmitting component and the sensing receiving component.

[0019] As a preferred embodiment, the bridging rotating component includes a first cover, a second cover, an elastic element, and a guide post. The first cover is fixedly mounted on the second cover. The outer periphery of the second cover is fixedly connected to the end of the multi-filter integrated component away from the camera body. Both the first and second covers have mounting through holes adapted to the first rotating shaft in their core portions. Both the first and second covers also have placement through holes, which are symmetrically arranged on both sides of the mounting through holes. The two oppositely arranged placement through holes together form a placement cavity. The cavity is provided with limiting protrusions at both ends. The guide post is movably installed in the cavity and can reciprocate along the length of the cavity. The guide post is provided with a limiting ring corresponding to the limiting protrusion in the middle. The elastic element is sleeved on the guide post. One end of the elastic element is connected to the limiting ring and the other end is connected to the limiting protrusion. The driven belt gear is provided with a snap-fit ​​ring groove corresponding to the guide post on the side near the first cover. A limiting abutment block is provided in the snap-fit ​​ring groove. The guide post is a magnetic post.

[0020] As a preferred embodiment, the elastic element is disposed on the side of the limiting protrusion ring near the second cover, the bridging rotating element has an initial state and an activated state, and the elastic element has a primary tension state and a secondary tension state;

[0021] When the bridging rotating component is in the initial state, the elastic component is in the first tension state, the elastic component has an elastic reset stress that causes the guide post to move toward the electromagnetic control module, and one end of the guide post abuts against the outer surface of the electromagnetic control module.

[0022] When the bridging rotating component is in the activated state, the electromagnetic control module is energized and has a magnetic driving force that causes the guide pin to move closer to the driven belt gear. The magnetic driving force is used to overcome the elastic reset stress and put the elastic component in the secondary tension state. One end of the guide pin passes through the first cover and is embedded in the snap ring groove.

[0023] As a preferred embodiment, the elastic element is disposed on the side of the limiting protrusion ring near the first cover body, the bridging rotating element has an initial state and an activated state, and the elastic element has a primary compression state and a secondary compression state;

[0024] When the bridging rotating member is in the initial state, the elastic member is in the first compression state, the elastic member has an elastic reset stress that causes the guide post to move toward the electromagnetic control module, and one end of the guide post abuts against the outer surface of the electromagnetic control module.

[0025] When the bridging rotating component is in the activated state, the electromagnetic control module is energized and has a magnetic driving force that causes the guide pin to move closer to the driven belt gear. The magnetic driving force is used to overcome the elastic reset stress and put the elastic component in the secondary compression state. One end of the guide pin passes through the first cover and is embedded in the snap ring groove.

[0026] As a preferred embodiment, the guide post has a rough texture at one end near the electromagnetic control module, the second cover is arranged with a gap between it and the electromagnetic control module, and a rough pad is fixed on one side of the electromagnetic control module near the guide post.

[0027] As a preferred embodiment, the multi-filter assembly includes multiple connecting fan ribs, each of which has a filter element mounted on its end away from the bridging rotating component. The multiple filter elements are of different specifications. The end of each connecting fan rib away from the filter element is fixedly connected to the bridging rotating component via a fan-shaped connecting block. Multiple sensing clearance holes are formed on the fan-shaped connecting block, and each of the multiple sensing clearance holes corresponds one-to-one with a single filter element.

[0028] As a preferred embodiment, the outer periphery of the camera body is provided with an integrated component clearance groove. The camera body includes a camera eye. The end of the multi-filter integrated component away from the bridging rotating component passes through the integrated component clearance groove and is disposed between the camera eye and the lens cover plate. The portion of the lens cover plate corresponding to the camera eye is transparent.

[0029] As a preferred embodiment, a first waterproof sealing ring is provided between the front shell and the bottom shell. A horn component is also provided inside the accommodating cavity. A mounting groove adapted to the horn component is opened on the side of the bottom shell near the front shell. The horn component is installed on the mounting groove and is electrically connected to the circuit board. A mounting base plate is also installed on the side of the bottom shell away from the front shell. A power-conducting core is fixed on the side of the circuit board near the mounting base plate. The power-conducting core passes through the bottom shell and extends to the outside. A tail wire connector is sleeved on the power-conducting core. A second waterproof sealing ring is also fixed between the tail wire connector and the bottom shell. A connector clearance groove corresponding to the tail wire connector is opened on the mounting base plate.

[0030] As a preferred option, the adaptive adjustable palm-swipe access control machine also includes:

[0031] A touch screen is mounted on the housing and electrically connected to the circuit board. The touch screen has an avoidance notch corresponding to the lens cover plate.

[0032] An NFC antenna is integrated on the touchscreen and electrically connected to the touchscreen.

[0033] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves passive adaptive locking of the multi-filter integrated component through the synergistic effect of the electromagnetic control module and the bridging rotating component, eliminating continuous power consumption. The bridging rotating component, as the power transmission hub, only forms a mechanical coupling transmission connection with the driving component when the electromagnetic control module is triggered. This greatly simplifies the mechanical mechanism, reduces the module size, and avoids the failure risk of long-term motor load, enhancing reliability while ensuring stable improvement in imaging quality. To more clearly illustrate the structural features and effects of this invention, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of an adaptive adjustable palm-swipe access control machine according to an embodiment of this application;

[0035] Figure 2 This is an exploded view of the adaptive adjustment palm-swipe access control machine according to an embodiment of this application;

[0036] Figure 3 This is an exploded view of the adaptive adjustment palm-swipe access control machine structure from another perspective of an embodiment of this application;

[0037] Figure 4 This is an exploded view of the adaptive adjustment palm-swipe access control machine according to an embodiment of this application;

[0038] Figure 5 This is an embodiment of the present application. Figure 2 Enlarged view of point A;

[0039] Figure 6 This is an embodiment of the present application. Figure 3 Enlarged view of point B;

[0040] Figure 7 This is an embodiment of the present application. Figure 4 Enlarged view at point C;

[0041] Figure 8 This is a cross-sectional view of the bridging rotating member in the enabled state according to Embodiment 1 of this application;

[0042] Figure 9 This is a cross-sectional view of the bridging rotating member in the enabled state according to Embodiment 2 of this application.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10. Base shell; 11. Mounting slot; 12. Speaker component;

[0045] 20. Faceplate; 21. Receiving cavity; 22. Circuit board; 221. Power-conducting core; 222. Tail wire connector; 223. Second waterproof sealing ring; 23. Clearance through hole; 24. Lens sealing plate; 25. First mounting plate; 26. Second mounting plate; 27. First pivot; 28. First waterproof sealing ring; 29. ​​Touch screen; 291. Clearance notch; 292. NFC antenna;

[0046] 30. Camera body; 31. Integrated component clearance groove; 32. Camera eye;

[0047] 40. Drive component; 41. Drive motor; 42. Driving belt gear; 43. Driven belt gear; 431. Engaging ring groove; 432. Limiting block; 44. Synchronous belt;

[0048] 50. Electromagnetic control module;

[0049] 60. Multi-filter assembly; 61. Sensor clearance hole; 62. Connecting fan rib; 63. Filter sheet; 64. Fan-shaped connecting block;

[0050] 70. Bridging rotating component; 71. First cover; 72. Second cover; 73. Elastic component; 74. Guide pin; 741. Limiting protrusion; 75. Mounting through hole; 76. Housing through cavity; 761. Housing through hole; 77. Limiting protrusion;

[0051] 81. Sensor transmitting component; 82. Sensor receiving component; 90. Mounting base plate; 91. Connector clearance groove. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0053] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0054] Please see Figures 1 to 9This utility model provides an adaptive adjustable palm-swipe access control machine, including a bottom shell 10, a front shell 20, a camera body 30, a drive component 40, an electromagnetic control module 50, a multi-filter integrated component 60, a bridging rotating component 70, and a sensor switch assembly. The front shell 20 is mounted on the bottom shell 10 and together with the bottom shell 10 forms a cavity 21, providing a stable installation and operating space for the internal components. A circuit board 22 is fixed inside the cavity 21, serving as the carrier of the core control component and realizing signal transmission and control between the components. The camera body 30 is fixed to the side of the circuit board 22 and located within the accommodating cavity 21, ensuring a fixed position for stable image acquisition. The faceplate 20 has a clearance through-hole 23 corresponding to the camera end of the camera body 30, providing a channel for image acquisition and preventing obstruction. A lens sealing plate 24 is installed on the clearance through-hole 23 to protect the camera body 30, preventing dust and other foreign objects from entering and maintaining optical transparency. The camera body 30 is electrically connected to the circuit board 22, enabling signal transmission between them to transfer acquired image data to the circuit board 22 for processing, thus achieving image data transmission and control signal interaction. The drive component 40 is located beside the camera body 30 and electrically connected to the circuit board 22, optimizing the spatial layout while providing power for the adjustment of the multi-filter integration component 60. The circuit board 22 also controls the drive component 40. The electromagnetic control module 50 is housed within the accommodating cavity 21 and fixedly connected to the faceplate 20, ensuring a stable installation and facilitating its normal operation. The electromagnetic control module 50 is electrically connected to the circuit board 22, enabling signal interaction between them for control by the circuit board 22. The multi-filter integration component 60 is angle-adjustable between the camera body 30 and the lens cover plate 24, allowing for angle adjustment and filter switching based on varying lighting conditions or scene changes, thereby optimizing imaging effects and achieving rapid optical characteristic switching. A bridging rotating component 70 is fixed at the end of the multi-filter integration component 60 furthest from the camera body 30, connecting the multi-filter integration component 60 to the faceplate 20, enabling rotational installation of the multi-filter integration component 60 while ensuring effective torque transmission. The bridging rotating component 70 is rotatably mounted on the housing 20, providing stable rotational support. It works in conjunction with the electromagnetic control module 50 to control the activation or deactivation of the transmission connection between the multi-filter integrated component 60 and the drive component 40, achieving dynamic coupling control. Specifically, by cooperating with the electromagnetic control module 50, it precisely controls the mechanical transmission connection state between the multi-filter integrated component 60 and the drive component 40, enabling flexible adjustment of the angle of the multi-filter integrated component 60 to adapt to different lighting conditions. A sensor switch assembly is disposed within the accommodating cavity 21 and electrically connected to the circuit board 22. It is used to trigger the on / off conduction of the drive component 40 and the electromagnetic control module 50, thereby achieving intelligent control of the adjustment of the multi-filter integrated component 60.

[0055] It should be noted that the electromagnetic control module 50 is a controllable electromagnet component, and the bridging rotating component 70 works in conjunction with the electromagnetic control module 50 to have an adaptive locking function.

[0056] Specifically, please refer to Figures 2 to 6 A first mounting plate 25 and a second mounting plate 26, arranged in parallel intervals, protrude from one side of the accommodating cavity 21 to provide stable mechanical support and mounting reference for the drive component 40. The first mounting plate 25 and the second mounting plate 26 are located beside the camera body 30, ensuring sufficient working space for collaboration with the camera module. The drive component 40 includes a drive motor 41, which is mounted on the first mounting plate 25 to ensure stable installation. The transmission end of the drive motor 41 passes through the first mounting plate 25 and is fitted with a driving belt gear 42, transmitting power from the drive motor 41 to the driving belt gear 42, achieving initial power conversion. A driven belt gear 43, on the same horizontal plane as the driving belt gear 42, is rotatably mounted on the side of the second mounting plate 26 near the bridging rotating component 70, ensuring the coaxiality and synchronization of the transmission system and guaranteeing smooth transmission between the driven belt gear 43 and the driving belt gear 42, achieving effective power transmission. Driven belt gear 43 is connected to driving belt gear 42 via synchronous belt 44. The synchronous belt 44 enables slip-free power transmission, ensuring synchronous rotation of driving belt gear 42 and driven belt gear 43, guaranteeing transmission stability and accuracy. Driven belt gear 43 and bridging rotating component 70 are located on the same axis, facilitating the driven belt gear 43 to drive the bridging rotating component 70, ensuring linear torque transmission and precise power delivery. Bridging rotating component 70 is rotatably mounted on face shell 20 via first rotating shaft 27, providing a low-friction rotational support structure, allowing flexible rotation and providing conditions for angle adjustment of multi-filter integrated component 60. Electromagnetic control module 50 is located between bridging rotating component 70 and face shell 20, optimizing space utilization and ensuring the effectiveness of electromagnetic action, enabling or disabling the transmission connection between multi-filter integrated component 60 and drive component 40. Multi-filter integrated component 60 is fixedly connected to the outer periphery of bridging rotating component 70, realizing the conversion from rotational motion to filter switching. The multi-filter assembly 60 has a sensing clearance hole 61 adapted to the sensing switch assembly to avoid obstructing the optical sensing path and ensure the normal sensing operation of the sensing switch assembly. The sensing switch assembly includes a sensing transmitter 81 and a sensing receiver 82. The sensing transmitter 81 is mounted on the side of the second mounting plate 26 near the bridging rotating member 70 and located next to the driven belt gear 43, achieving a compact spatial layout. The sensing receiver 82 is mounted on the housing 20, forming a stable signal receiving end. The multi-filter assembly 60 is located between the sensing transmitter 81 and the sensing receiver 82. By changing the position of the multi-filter assembly 60, the sensing switch assembly is triggered, thereby controlling the driving member 40 and the electromagnetic control module 50, ensuring the accuracy of filter switching.

[0057] Please see Figure 7 The bridging rotating component 70 includes a first cover 71, a second cover 72, an elastic element 73, and a guide post 74. The second cover 72 cooperates with the first cover 71 to form an internal receiving space. The elastic element 73 provides a reset force, and the guide post 74 enables mechanical coupling, separation, and locking. The first cover 71 is fixedly mounted on the second cover 72, forming the basic structure of the bridging rotating component 70. The outer periphery of the second cover 72 is fixedly connected to the end of the multi-filter integrated component 60 away from the camera body 30, ensuring effective torque transmission so that the bridging rotating component 70 can drive the multi-filter integrated component 60 to rotate, achieving angle adjustment. Both the first cover 71 and the second cover 72 have mounting through holes 75 adapted to the first rotating shaft 27, providing an installation position for the first rotating shaft 27 and ensuring that the bridging rotating component 70 can rotate flexibly around the first rotating shaft 27. Both the first cover 71 and the second cover 72 are provided with mounting through holes 761. These holes 761 are symmetrically positioned on both sides of the mounting through hole 75, and the two opposing mounting through holes 761 together form a mounting cavity 76, providing a stable guiding channel for the reciprocating movement of the guide pin 74. Limiting protrusions 77 protrude from both ends of the mounting cavity 76 to restrict the movement range of the guide pin 74, preventing it from dislodging and limiting its stroke. The guide pin 74 is movably installed within the mounting cavity 76 and can reciprocate along the length of the mounting cavity 76, achieving axial displacement to meet the requirements of engaging or disengaging with the driven belt gear 43. A limiting protrusion ring 741 corresponding to the limiting protrusion 77 protrudes from the middle of the guide pin 74, cooperating with the limiting protrusion 77 to further precisely control the movement range of the guide pin 74. The elastic element 73 is sleeved and installed on the guide post 74. One end of the elastic element 73 is connected to the limiting protrusion 741, and the other end is connected to the limiting protrusion 77. Through the connection of the elastic element 73, the elastic force is accurately transmitted to the guide post 74. The driven belt gear 43 has a snap-fit ​​ring groove 431 corresponding to the guide post 74 on the side near the first cover 71, providing a snap-fit ​​position for the guide post 74 and realizing the precise mechanical transmission coupling between the bridging rotating part 70 and the driven belt gear 43. A limiting abutment block 432 protrudes in the snap-fit ​​ring groove 431, which cooperates with the guide post 74 and plays a role in positioning and stabilizing the connection during snap-fit. The guide post 74 is a magnetic post, realizing a fast response under electromagnetic control, which facilitates the electromagnetic control module 50 to attract or release the guide post 74, thereby realizing the activation or deactivation of the transmission connection between the bridging rotating part 70 and the driven belt gear 43.

[0058] In Example 1, please refer to Figure 8The elastic element 73 is located on the side of the limiting protrusion 741 near the second cover 72, which optimizes the force distribution and improves the structural stability. The bridging rotating element 70 has an initial state and an activated state. The initial state is the standby non-working state, and the activated state is the working transmission state. The elastic element 73 has a primary tension state and a secondary tension state.

[0059] When the bridging rotating member 70 is in the initial state, the elastic member 73 is in a tension state, maintaining the basic preload. The elastic member 73 has an elastic reset stress that causes the guide pin 74 to move toward the electromagnetic control module 50. One end of the guide pin 74 abuts against the outer surface of the electromagnetic control module 50, forming a stable physical limit.

[0060] When the bridging rotating component 70 is in the activated state, the electromagnetic control module 50 is energized and has a magnetic driving force that causes the guide pin 74 to move closer to the driven belt gear 43, realizing non-contact power coupling. The magnetic driving force is used to overcome the elastic reset stress and put the elastic component 73 in a secondary tension state, completing the displacement required for power transmission. One end of the guide pin 74 passes through the first cover 71 and is embedded in the snap ring groove 431. When the driven belt gear 43 rotates, the guide pin 74 abuts against the limiting abutment block 432, thereby establishing a reliable mechanical transmission connection and realizing the transmission connection between the bridging rotating component 70 and the driven belt gear 43, so that the bridging rotating component 70 can drive the multi-filter integrated component 60 to rotate.

[0061] In Example 2, please refer to Figure 9 The elastic element 73 is disposed on the side of the limiting protrusion 741 near the first cover 71. The bridging rotating element 70 has an initial state and an activated state. The elastic element 73 has a primary compression state and a secondary compression state.

[0062] When the bridging rotating component 70 is in the initial state, the elastic component 73 is in a compressed state, maintaining the basic preload. The elastic component 73 has an elastic reset stress that causes the guide pin 74 to move toward the electromagnetic control module 50, ensuring the safety and self-locking mechanism of automatic separation when power is off. One end of the guide pin 74 abuts against the outer surface of the electromagnetic control module 50, forming a reliable mechanical limit.

[0063] When the bridging rotating component 70 is in the activated state, the electromagnetic control module 50 is energized and has a magnetic driving force that causes the guide pin 74 to move closer to the driven belt gear 43, providing precise electromagnetic drive control. The magnetic driving force is used to overcome the elastic reset stress and put the elastic component 73 in a secondary compression state, thereby achieving stable pressure maintenance in the working state. One end of the guide pin 74 passes through the first cover 71 and is embedded in the snap ring groove 431. When the driven belt gear 43 rotates, the guide pin 74 abuts against the limit abutment block 432, thereby establishing a reliable mechanical transmission connection and realizing the transmission connection between the bridging rotating component 70 and the driven belt gear 43, so that the bridging rotating component 70 can drive the multi-filter integrated component 60 to rotate.

[0064] Here, to achieve a more robust self-locking effect, the electromagnetic control module 50 can remain energized without considering additional power consumption, causing a mutual attraction force to be generated between the guide post 74 and the electromagnetic control module 50.

[0065] Furthermore, the guide post 74 has a rough texture at the end near the electromagnetic control module 50 to increase the coefficient of friction and ensure contact locking stability. The second cover 72 is arranged with a gap between it and the electromagnetic control module 50 to allow space for thermal expansion and prevent movement interference. A rough pad is fixed on the side of the electromagnetic control module 50 near the guide post 74 to improve contact reliability during locking.

[0066] Please see Figure 5 The multi-filter assembly 60 includes multiple connecting fan ribs 62, realizing a fan-shaped distribution structure of multiple filters. The connecting fan ribs 62 are made of lightweight thin sheet material. Filter lenses 63 are installed at the ends of the multiple connecting fan ribs 62 away from the bridging rotating component 70. The multiple filter lenses 63 are lenses of different specifications to adapt to diverse lighting environment requirements, improving image quality and adaptability. The ends of the connecting fan ribs 62 away from the filter lenses 63 are fixedly connected to the bridging rotating component 70 through fan-shaped connecting blocks 64. Multiple sensing clearance holes 61 are all formed on the fan-shaped connecting blocks 64 to achieve precise position detection. The multiple sensing clearance holes 61 correspond one-to-one with the multiple filter lenses 63, establishing a correspondence between the position of the filter lens 63 and the sensing signal. This ensures that each filter lens 63 can accurately correspond to the sensing clearance hole 61 when rotated to a specific position, enabling the sensing switch assembly to normally sense the position status of the filter lens 63 and achieve precise control of the multi-filter assembly 60.

[0067] The camera body 30 also has an integrated component clearance groove 31 on the outer periphery of the camera end, providing space for the rotation and position adjustment of the multi-filter integrated component 60, preventing collisions between the multi-filter integrated component 60 and the camera body 30, and ensuring that both the camera body 30 and the multi-filter integrated component 60 can work normally. The camera body 30 includes a camera eye 32. The end of the multi-filter integrated component 60 away from the bridging rotating component 70 passes through the integrated component clearance groove 31 and is positioned between the camera eye 32 and the lens cover plate 24, so that the multi-filter integrated component 60 can be accurately positioned on the imaging path of the camera body 30, realizing the filtering and adjustment of the light entering the camera eye 32. At the same time, the lens cover plate 24 can protect the camera eye 32 and the multi-filter integrated component 60. The corresponding part of the lens cover plate 24 and the camera eye 32 is transparent, ensuring that light can pass smoothly through the lens cover plate 24 and enter the camera eye 32 without affecting the normal imaging of the camera body 30.

[0068] Furthermore, please refer to Figures 1 to 3 A first waterproof sealing ring 28 is provided between the front shell 20 and the bottom shell 10 to effectively prevent external moisture from entering the accommodating cavity 21, protecting the internal circuit board 22, camera body 30, and other electronic components from the influence of a humid environment, improving the waterproof performance and service life of the access control machine. A speaker 12 is also provided inside the accommodating cavity 21, which can be used to play prompts, alarms, and other information, enhancing the interactivity and functionality of the access control machine. A mounting groove 11 adapted to the speaker 12 is provided on the side of the bottom shell 10 near the front shell 20, providing a stable mounting position for the speaker 12, ensuring its secure installation, and facilitating the connection between the speaker 12 and the circuit board 22. The speaker 12 is mounted on the mounting groove 11 and electrically connected to the circuit board 22, enabling the circuit board 22 to control the speaker 12 and make it emit corresponding sounds as needed. A mounting base plate 90 is also installed on the side of the bottom shell 10 away from the front shell 20, providing mounting support for the access control machine and facilitating its fixation to a wall or other location. A power-conducting core 221 is fixedly mounted on the side of the circuit board 22 near the mounting plate 90, serving as an interface for connecting the access control machine to an external power source, thus enabling the access control machine to be powered on. The power-conducting core 221 passes through the bottom shell 10 and extends to the outside. A tail wire connector 222 is fitted onto the power-conducting core 221 for easy connection to an external power cord, and the tail wire connector 222 protects the power-conducting core 221 from damage. A second waterproof sealing ring 223 is also fixed between the tail wire connector 222 and the bottom shell 10, further enhancing the waterproof performance of the access control machine and preventing moisture from entering the receiving cavity 21 from the connection between the tail wire connector 222 and the bottom shell 10. The mounting plate 90 has a connector clearance groove 91 corresponding to the tail wire connector 222, providing installation and connection space for the tail wire connector 222, avoiding interference between the tail wire connector 222 and the mounting plate 90, and ensuring the overall compact structure of the access control machine.

[0069] In addition, the adaptive palm-swipe access control machine also includes a touch screen 29 and an NFC antenna 292. The touch screen 29 is mounted on the faceplate 20 and electrically connected to the circuit board 22. The touch screen 29 can be used to display the operation interface, prompts, etc., to facilitate users' palm-swipe operation and obtain relevant information. At the same time, it realizes information interaction with the circuit board 22. The touch screen 29 has an avoidance notch 291 corresponding to the lens cover plate 24 to prevent the touch screen 29 from blocking the lens cover plate 24 and ensure that the camera body 30 can normally capture images. The NFC antenna 292 is integrated on the touch screen 29 and electrically connected to the touch screen 29, enabling the access control machine to have NFC function and interact with NFC-enabled devices, thus expanding the application scenarios and functions of the access control machine. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adaptive adjustable palm-swipe access control machine, characterized in that, include: Bottom shell (10); The front shell (20) is mounted on the bottom shell (10) and together with the bottom shell (10) forms a receiving cavity (21), and a circuit board (22) is fixedly disposed in the receiving cavity (21); The camera body (30) is fixedly mounted on the side of the circuit board (22) and located in the accommodating cavity (21). The face shell (20) has a clearance through hole (23) corresponding to the camera end of the camera body (30). A lens sealing plate (24) is installed on the clearance through hole (23). The camera body (30) is electrically connected to the circuit board (22). A driving component (40) is disposed on the side of the camera body (30) and electrically connected to the circuit board (22); An electromagnetic control module (50) is disposed in the accommodating cavity (21) and fixedly connected to the face shell (20). The electromagnetic control module (50) is electrically connected to the circuit board (22). A multi-filter assembly (60) is angle-adjustably disposed between the camera body (30) and the lens cover plate (24); A bridging rotating component (70) is fixedly disposed at one end of the multi-filter integrated component (60) away from the camera body (30). The bridging rotating component (70) is rotatably mounted on the face shell (20) and cooperates with the electromagnetic control module (50) to control the activation or deactivation of the transmission connection between the multi-filter integrated component (60) and the driving component (40). A sensing switch assembly is disposed in the accommodating cavity (21) and electrically connected to the circuit board (22) for triggering the conduction switching of the driving member (40) and the electromagnetic control module (50).

2. The adaptive adjustable palm-swipe access control machine according to claim 1, characterized in that: The accommodating cavity (21) has a first mounting plate (25) and a second mounting plate (26) arranged in parallel intervals on one side. The first mounting plate (25) and the second mounting plate (26) are located beside the camera body (30). The driving component (40) includes a driving motor (41). The driving motor (41) is mounted on the first mounting plate (25). The transmission end of the driving motor (41) passes through the first mounting plate (25) and is equipped with a driving belt gear (42). The second mounting plate (26) is rotatably mounted with a driven belt gear (43) on the same horizontal plane as the driving belt gear (42) on the side near the bridging rotating member (70). The driven belt gear (43) is connected to the driving belt gear (42) through a synchronous belt (44). The driven belt gear (43) and the bridging rotating member (70) are located on the same axis. The bridging rotating component (70) is rotatably mounted on the face shell (20) via the first rotating shaft (27). The electromagnetic control module (50) is disposed between the bridging rotating component (70) and the face shell (20). The multi-filter integrated component (60) is fixedly connected to the outer periphery of the bridging rotating component (70). The multi-filter integrated component (60) has a sensing clearance hole (61) adapted to the sensing switch assembly. The sensing switch assembly includes a sensing transmitting component (81) and a sensing receiving component (82). The sensing transmitting component (81) is mounted on the side of the second mounting plate (26) near the bridging rotating component (70) and located next to the driven belt gear (43). The sensing receiving component (82) is mounted on the face shell (20). The multi-filter integrated component (60) is located between the sensing transmitting component (81) and the sensing receiving component (82).

3. The adaptive adjustable palm-swipe access control machine according to claim 2, characterized in that: The bridging rotating component (70) includes a first cover (71), a second cover (72), an elastic element (73), and a guide post (74). The first cover (71) is fixedly mounted on the second cover (72). The outer periphery of the second cover (72) is fixedly connected to the end of the multi-filter integrated component (60) away from the camera body (30). The first cover (71) and the second cover (72) are both provided with mounting through holes (75) adapted to the first rotating shaft (27) in their center. The first cover (71) and the second cover (72) are also provided with placement through holes (761). The placement through holes (761) are arranged on both sides of the mounting through holes (75). The two oppositely arranged placement through holes (761) together form a placement cavity (76). The cavity (76) has limiting protrusions (77) at both ends. The guide post (74) is movably installed in the cavity (76) and can reciprocate along the length of the cavity (76). The guide post (74) has a limiting ring (741) corresponding to the limiting protrusion (77) in the middle. The elastic element (73) is sleeved on the guide post (74). One end of the elastic element (73) is connected to the limiting ring (741), and the other end is connected to the limiting protrusion (77). The driven belt gear (43) has a snap ring groove (431) corresponding to the guide post (74) on the side near the first cover (71). A limiting abutment block (432) is protruding in the snap ring groove (431). The guide post (74) is a magnetic post.

4. The adaptive adjustable palm-swipe access control machine according to claim 3, characterized in that: The elastic element (73) is disposed on the side of the limiting protrusion (741) near the second cover (72), the bridging rotating element (70) has an initial state and an activated state, and the elastic element (73) has a first-stretch state and a second-stretch state. When the bridging rotating member (70) is in the initial state, the elastic member (73) is in the first tension state. The elastic member (73) has an elastic reset stress that causes the guide post (74) to move toward the electromagnetic control module (50). One end of the guide post (74) abuts against the outer surface of the electromagnetic control module (50). When the bridging rotating member (70) is in the enabled state, the electromagnetic control module (50) is energized and has a magnetic driving force that causes the guide pin (74) to move closer to the driven belt gear (43). The magnetic driving force is used to overcome the elastic reset stress and put the elastic member (73) in the secondary tension state. One end of the guide pin (74) passes through the first cover (71) and is embedded in the snap ring groove (431).

5. The adaptive adjustable palm-swipe access control machine according to claim 3, characterized in that: The elastic element (73) is disposed on the side of the limiting protrusion (741) near the first cover (71), the bridging rotating element (70) has an initial state and an activated state, and the elastic element (73) has a primary compression state and a secondary compression state. When the bridging rotating member (70) is in the initial state, the elastic member (73) is in the first compression state. The elastic member (73) has an elastic reset stress that causes the guide post (74) to move toward the electromagnetic control module (50). One end of the guide post (74) abuts against the outer surface of the electromagnetic control module (50). When the bridging rotating member (70) is in the activated state, the electromagnetic control module (50) is energized and has a magnetic driving force that causes the guide pin (74) to move closer to the driven belt gear (43). The magnetic driving force is used to overcome the elastic reset stress and put the elastic member (73) in the secondary compression state. One end of the guide pin (74) passes through the first cover (71) and is embedded in the snap ring groove (431).

6. The adaptive adjustable palm-swipe access control machine according to claim 3, characterized in that: The guide post (74) has a rough texture at one end near the electromagnetic control module (50), the second cover (72) is arranged with a gap between it and the electromagnetic control module (50), and a rough pad is fixed on one side of the electromagnetic control module (50) near the guide post (74).

7. The adaptive adjustable palm-swipe access control machine according to claim 2, characterized in that: The multi-filter assembly (60) includes multiple connecting fan ribs (62), and each of the multiple connecting fan ribs (62) is equipped with a filter lens (63) at the end away from the bridging rotating component (70). The multiple filter lenses (63) are lenses of different specifications. The end of the connecting fan rib (62) away from the filter lens (63) is fixedly connected to the bridging rotating component (70) through a fan-shaped connecting block (64). Multiple sensing clearance holes (61) are opened on the fan-shaped connecting block (64), and the multiple sensing clearance holes (61) correspond one-to-one with the multiple filter lenses (63).

8. The adaptive adjustable palm-swipe access control machine according to claim 1, characterized in that: The camera body (30) also has an integrated component clearance groove (31) on the outer periphery of the camera end. The camera body (30) includes a camera eye (32). The end of the multi-filter integrated component (60) away from the bridging rotating component (70) passes through the integrated component clearance groove (31) and is disposed between the camera eye (32) and the lens cover plate (24). The part of the lens cover plate (24) corresponding to the camera eye (32) is transparent.

9. The adaptive adjustable palm-swipe access control machine according to claim 1, characterized in that: A first waterproof sealing ring (28) is provided between the front shell (20) and the bottom shell (10). A horn component (12) is also provided in the accommodating cavity (21). A mounting groove (11) adapted to the horn component (12) is opened on the side of the bottom shell (10) near the front shell (20). The horn component (12) is installed in the mounting groove (11). The horn component (12) is electrically connected to the circuit board (22). A mounting base plate (9) is also installed on the side of the bottom shell (10) away from the front shell (20). 0), the circuit board (22) is fixedly provided with a power-conducting core (221) on the side near the mounting base plate (90). The power-conducting core (221) passes through the bottom shell (10) and extends to the outside. A tail wire connector (222) is sleeved on the power-conducting core (221). A second waterproof sealing ring (223) is also fixed between the tail wire connector (222) and the bottom shell (10). A connector clearance groove (91) corresponding to the tail wire connector (222) is opened on the mounting base plate (90).

10. The adaptive adjustable palm-swipe access control machine according to claim 1, characterized in that, Also includes: A touch screen (29) is mounted on the faceplate (20) and electrically connected to the circuit board (22). The touch screen (29) has an avoidance notch (291) corresponding to the lens cover plate (24). An NFC antenna (292) is integrated on the touch screen (29) and electrically connected to the touch screen (29).

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