Smart video doorbell camera focusing mechanism
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-14
AI Technical Summary
然而,该类人工调焦方式存在明显不足:一方面,调焦质量高度依赖操作人员的经验与手工精度,容易导致成品间一致性差;另一方面,人工调焦过程耗时较长,效率低下,难以满足大规模生产的需求
1)在调焦机构中,通孔的正上方设置测试图纸,使得在摄像头组件旋转调焦过程中,摄像头能够直接对准测试图纸进行成像采集。该设置的好处在于:通过提供可供摄像头拍摄的参考标识,可以在调焦过程中实时评估焦距是否达到最佳状态,从而实现调焦效果的即时检测与验证。这不仅提高了调焦精度和一致性,也便于半自动化操作的闭环控制,减少人工判断误差,提高生产效率和产品质量的稳定性。
Smart Images

Figure CN224638123U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lighting technology, and in particular to a focusing mechanism for an intelligent video doorbell camera. Background Technology
[0002] With the widespread application of consumer electronics products such as smart video doorbells and security cameras, the image quality of camera components has become a crucial indicator of device performance. Focusing is a key aspect of ensuring image clarity; it essentially involves rotating the lens or mirror inside the camera component to precisely match its relative position to the imaging sensor, thereby achieving accurate focus adjustment. Focusing not only affects the image acquisition accuracy of the device but also directly impacts subsequent product testing, assembly, and the end-user experience.
[0003] In existing technologies, focusing of camera components largely relies on manual operation. Typically, operators need to manually power and activate the camera at a testing station, observe the image captured on the display screen, and adjust the focus by manually rotating the lens. After focusing, the lens position also needs to be manually fixed to ensure it doesn't shift during subsequent use. However, this manual focusing method has significant drawbacks: firstly, the focusing quality is highly dependent on the operator's experience and manual precision, easily leading to poor consistency between finished products; secondly, the manual focusing process is time-consuming and inefficient, making it difficult to meet the needs of large-scale production. Utility Model Content
[0004] To effectively reduce reliance on operator experience and manual precision, and improve focusing consistency, this application provides a focusing mechanism for an intelligent video doorbell camera. The technical solution provided in this application is as follows: A focusing mechanism for an intelligent video doorbell camera includes a fixed frame, a lifting module on the fixed frame, a fixed plate on the lifting module, the fixed plate being horizontally positioned, a through hole on the fixed plate, a rotary bearing at the through hole, and a gripping component floating at the bottom end of the rotary bearing.
[0005] In one specific implementation scheme, the fixed plate is further provided with a servo motor, the output end of the servo motor is connected to a first synchronous pulley, the bottom end of the rotary bearing is connected to a second synchronous pulley, the first synchronous pulley and the second synchronous pulley are connected by belt drive, and the clamping assembly is floatingly disposed at the bottom end of the second synchronous pulley.
[0006] In one specific implementation, the size of the second synchronizing pulley is larger than the size of the first synchronizing pulley.
[0007] In one specific implementation, the gripping assembly includes a drive cylinder, a first gripper, and a second gripper. The drive cylinder is floatingly disposed at the bottom end of the second synchronous pulley. The output end of the drive cylinder is connected to the first gripper and the second gripper, respectively. The first gripper and the second gripper are symmetrically arranged.
[0008] In one specific implementation, a reinforcing rib is provided between the fixing plate and the lifting module.
[0009] In one specific implementation, a test drawing is provided directly above the through hole.
[0010] In summary, the beneficial effects of this application include at least the following: 1) In the focusing mechanism, a test pattern is placed directly above the through-hole, allowing the camera to directly align with the test pattern for image acquisition during the camera assembly's rotation and focusing process. The advantage of this setup is that by providing a reference marker for the camera to capture images, the focus can be evaluated in real-time during focusing to determine if it has reached the optimal state, thus enabling immediate detection and verification of the focusing effect. This not only improves focusing accuracy and consistency but also facilitates closed-loop control of semi-automated operations, reduces human error, and enhances production efficiency and product quality stability.
[0011] 2) By mounting a servo motor on the top surface of the fixed plate and transmitting rotational power to the gripping assembly via the first and second synchronous pulleys and belt drive, high-precision control of the rotational focusing action of the camera assembly can be achieved. The size difference between the first and second synchronous pulleys facilitates the adjustment of speed and torque, ensuring that the grippers can output power smoothly while maintaining rotational accuracy and stability. The floating mounting and symmetrically arranged first and second grippers at the bottom of the gripping assembly can evenly grip the camera assembly, preventing offset or tilting, while adapting to components of different sizes, improving gripping reliability and focusing repeatability. The overall structure ensures the smoothness, accuracy, and consistency of the focusing action, while reducing reliance on manual operation and improving the efficiency and consistency of semi-automatic focusing.
[0012] By coordinating a fixed frame, lifting module, fixed plate, crossed roller bearings, servo motor, synchronous pulleys, and clamping components, semi-automatic rotary focusing of the camera assembly is achieved. During operation, the lifting module adjusts the height of the fixed plate to ensure precise alignment between the grippers and the camera assembly. The clamping components securely hold the camera, and the servo motor drives the rotary bearings via synchronous pulleys and belt transmission, rotating the camera assembly to complete focus adjustment. This solution effectively reduces reliance on operator experience and manual precision, improves focusing consistency, and accelerates focusing speed through semi-automatic rotation control, significantly increasing production efficiency. It solves the technical problems of low accuracy, poor efficiency, and difficulty in meeting the needs of large-scale production associated with traditional manual focusing.
[0013] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the focusing mechanism of the smart video doorbell camera in this embodiment. Figure 1 .
[0015] Figure 2 This is a schematic diagram of the focusing mechanism of the smart video doorbell camera in this embodiment. Figure 2 .
[0016] Reference numerals: 1. Fixing frame; 2. Fixing plate; 21. Reinforcing rib; 22. Rotary bearing; 3. Lifting module; 4. First synchronous pulley; 5. Second synchronous pulley; 6. Servo motor; 7. Gripping assembly; 71. First gripper; 72. Second gripper; 73. Gripping cylinder; 8. Belt. Detailed Implementation
[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0019] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.
[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0021] This application discloses a focusing mechanism for an intelligent video doorbell camera.
[0022] Reference Figure 1 The focusing mechanism of the intelligent video doorbell camera includes a fixed frame 1, a lifting module 3 vertically mounted on the top of the fixed frame 1, a fixing plate 2 horizontally mounted on the side wall of the lifting module 3, and a reinforcing rib 21 between the fixing plate 2 and the lifting module 3. The fixing plate 2 has through holes for connection. Figure 2 The inner wall of the through hole is provided with a rotary bearing 22, which is specifically a crossed roller bearing in this application.
[0023] Reference Figure 1 and Figure 2A servo motor 6 is fixedly mounted on the top surface of the fixed plate 2. The output end of the servo motor 6 is connected to a first synchronous pulley 4, and the bottom end of the rotary bearing 22 is fixedly connected to a second synchronous pulley 5. The first synchronous pulley 4 and the second synchronous pulley 5 are connected by a belt 8. In this embodiment, the first synchronous pulley 4 is a small-sized synchronous pulley, and the second synchronous pulley 5 is a large-sized synchronous pulley, that is, the size of the second synchronous pulley 5 is larger than the size of the first synchronous pulley 4. A gripping assembly 7 is floatingly mounted at the bottom end of the second synchronous pulley 5. The gripping assembly 7 includes a drive cylinder, a first gripper 71, and a second gripper 72. The drive cylinder is floatingly mounted at the bottom end of the second synchronous pulley 5, and the output end of the drive cylinder is connected to the first gripper 71 and the second gripper 72 respectively. The first gripper 71 and the second gripper 72 are symmetrically arranged. By mounting the servo motor 6 on the top surface of the fixed plate 2 and transmitting the rotational power to the gripping assembly 7 through the first synchronous pulley 4, the second synchronous pulley 5, and the belt 8, high-precision control of the rotational focusing action of the gripping camera assembly can be achieved. The size difference between the first synchronous pulley 4 and the second synchronous pulley 5 facilitates the adjustment of rotational speed and torque, ensuring that the grippers can output power smoothly while maintaining rotational accuracy and stability during rotation. The floating mounting at the bottom of the gripping assembly 7 and the symmetrically arranged first and second grippers 71 and 72 evenly grip the camera assembly, preventing offset or tilting, while also accommodating components of different sizes, improving gripping reliability and focusing repeatability. The overall structure ensures the smoothness, accuracy, and consistency of the focusing action, while reducing reliance on manual operation, improving the efficiency of semi-automatic focusing and the consistency of finished products.
[0024] Reference Figure 1 and Figure 2 In actual operation, the camera component to be focused is first conveyed to the working position of the focusing mechanism. The lifting module 3 adjusts the height of the fixing plate 2 as needed to maintain a suitable relative position between the fixing plate 2 and the camera component. Then, the drive cylinder is activated, causing the first gripper 71 and the second gripper 72 at its output end to symmetrically clamp the camera component, ensuring its stability during focusing. Next, the servo motor 6 is activated, driving the first synchronous pulley 4 at its output end to rotate. The first synchronous pulley 4 drives the connected second synchronous pulley 5 to rotate via the belt 8. The second synchronous pulley 5, under the rotation of the upper rotary bearing 22, drives the grippers and the clamped camera component to achieve rotational focusing. During focusing, the rotary bearing 22 supports the smooth rotation of the camera component and ensures rotational accuracy.
[0025] Reference Figure 1 and Figure 2A test pattern is positioned directly above the through-hole in the focusing mechanism. This allows the camera to directly align with the test pattern for image acquisition during the camera assembly's rotation and focusing process. The advantage of this setup is that by providing a reference marker for the camera to capture images, the focus can be evaluated in real-time during focusing to determine if it has reached the optimal state, thus enabling immediate detection and verification of the focusing effect. This not only improves focusing accuracy and consistency but also facilitates closed-loop control of semi-automated operations, reduces human error, and enhances production efficiency and product quality stability.
[0026] In summary, through the coordinated operation of the fixed frame 1, lifting module 3, fixed plate 2, cross roller bearing, servo motor 6, synchronous pulley, and clamping assembly 7, semi-automatic rotary focusing of the camera assembly is achieved. During operation, the lifting module 3 adjusts the height of the fixed plate 2 to ensure precise alignment between the gripper and the camera assembly, the clamping assembly 7 securely holds the camera, and the servo motor 6 drives the rotary bearing 22 to rotate the camera assembly via the synchronous pulley and belt 8, thereby completing the focus adjustment. This solution effectively reduces reliance on operator experience and manual precision, improves focusing consistency, and accelerates focusing speed through semi-automatic rotation control, significantly improving production efficiency and solving the technical problems of low accuracy, poor efficiency, and difficulty in meeting the needs of large-scale production in traditional manual focusing.
[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An intelligent visual doorbell camera focusing mechanism, characterized in that, The utility model provides fixing frame is equipped with lifting module on it, be equipped with fixed plate on lifting module, fixed plate horizontal setting, be equipped with rotating bearing in the through -hole of fixed plate, the bottom of rotating bearing is floatingly provided with clamping component.
2. The intelligent video doorbell camera focusing mechanism of claim 1, wherein, The utility model also provides servo motor on fixed plate, the output of servo motor is connected with first synchronous wheel, the bottom of rotating bearing is connected with second synchronous wheel, first synchronous wheel and second synchronous wheel are connected through belt drive, and clamping component is floatingly arranged at the bottom of second synchronous wheel.
3. The intelligent video doorbell camera focusing mechanism of claim 2, wherein, The size of the second synchronous wheel is larger than that of the first synchronous wheel.
4. The intelligent video doorbell camera focusing mechanism of claim 2, wherein, The clamping component includes a drive cylinder, a first clamp jaw, and a second clamp jaw. The drive cylinder is floatingly arranged at the bottom of the second synchronous wheel. The output of the drive cylinder is connected with the first clamp jaw and the second clamp jaw respectively. The first clamp jaw and the second clamp jaw are symmetrically arranged.
5. The intelligent video doorbell camera focusing mechanism of claim 1, wherein, A reinforcing rib is arranged between the fixed plate and the lifting module.
6. The intelligent video doorbell camera focusing mechanism of claim 1, wherein, A test drawing is arranged directly above the through-hole.