Face image acquisition device

Abstract

This utility model relates to the field of facial image acquisition and discloses a facial image acquisition device, including a C-shaped bracket and an acquisition device body. The acquisition device body is mounted on the C-shaped bracket. It also includes a hydraulic cylinder mounting cavity located in the middle side of the C-shaped bracket, a sliding hole on the inner surface of the middle side of the C-shaped bracket, a height adjustment structure located in the hydraulic cylinder mounting cavity, the height adjustment structure passing through the sliding hole outside the C-shaped bracket, and an angle adjustment structure located on the height adjustment structure. The acquisition device body is mounted on the angle adjustment structure for adjusting the angle position of the acquisition device body. Through the height and angle adjustment structures, flexible and precise adjustment of the height and angle of the acquisition device is achieved, enabling rapid adaptation to the needs of people of different heights and diverse usage scenarios.

Description

Technical Field

[0001] This utility model relates to the field of facial image acquisition, specifically a facial image acquisition device. Background Technology

[0002] Facial image acquisition refers to the process of acquiring facial images through various devices (such as cameras, mobile phones, etc.). This process is commonly used in multiple application scenarios such as facial recognition, identity verification, security monitoring, and social media. Commonly used facial acquisition devices include high-resolution cameras, smartphone cameras, and professional facial recognition devices. Clarity, resolution, and color accuracy all have a significant impact on the subsequent facial recognition results. The acquired data usually needs to be preprocessed, such as noise reduction, standardization, and feature extraction, in order to be used in facial recognition algorithms.

[0003] The height adjustment function of the device has limitations. Most devices have a fixed height or a complicated adjustment method, which makes it difficult to quickly adapt to the collection needs of people of different heights. This leads to viewing angle deviations in the collected images, affecting image quality and subsequent recognition results. The angle adjustment of the collection device is not flexible enough, and it is impossible to quickly and accurately adjust the collection angle according to the actual use scenario, making it difficult to meet the requirements of diverse collection environments. The installation and disassembly process of some face image collection devices is cumbersome, which not only consumes manpower and time costs, but also makes it extremely inconvenient to maintain and replace the equipment, reducing work efficiency. Therefore, we propose a face image collection device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a facial image acquisition device that solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a face image acquisition device, comprising a C-shaped bracket and an acquisition device body, wherein one side of the symmetrical two sides of the C-shaped bracket is fixed to the ground, the acquisition device body is mounted on the C-shaped bracket, and further comprising:

[0006] A hydraulic cylinder mounting cavity is provided in the middle side of the C-shaped bracket;

[0007] A sliding hole is formed on the inner surface of the middle side of the C-shaped bracket, the sliding hole extends into the hydraulic cylinder mounting cavity, and the two ends of the sliding hole face the two symmetrical sides of the C-shaped bracket.

[0008] A height adjustment structure is installed inside the hydraulic cylinder mounting cavity. The height adjustment structure passes through the sliding hole outside the C-shaped bracket and is used to adjust the height of the data acquisition device body.

[0009] An angle adjustment structure is provided on the height adjustment structure, and the acquisition device body is mounted on the angle adjustment structure for adjusting the angle position of the acquisition device body.

[0010] Preferably, the height adjustment structure includes a double-rod hydraulic cylinder, a slider, and a support plate. The double-rod hydraulic cylinder is installed in the hydraulic cylinder mounting cavity. The piston rods at both ends of the double-rod hydraulic cylinder correspond to the sliding holes. The piston rods of the double-rod hydraulic cylinder are fixedly connected to the two side walls of the hydraulic cylinder mounting cavity. A slider is fixedly connected to the side of the cylinder body of the double-rod hydraulic cylinder opposite to the sliding hole. The other end of the slider passes through the sliding hole and is slidably connected to the sliding hole. A support plate is fixedly connected to one end of the slider outside the hydraulic cylinder mounting cavity.

[0011] Preferably, an arc-shaped track support is fixedly connected to the top surface of the support plate, the arc-shaped track support is close to the C-shaped bracket and the arc surface of the arc-shaped track support is away from the C-shaped bracket.

[0012] Preferably, the arc-shaped track support has an arc-shaped groove inside, and the arc surface of the arc-shaped groove corresponds to the arc-shaped track support.

[0013] Preferably, the angle adjustment structure includes a motor, a connecting rod, and a locking rod. The bottom surface of the motor body is fixedly connected to the top surface of the support plate. A connecting rod is connected to the output shaft of the motor. One end of the connecting rod is fixedly connected to the motor, and the other end of the connecting rod faces the arc-shaped track support and passes through the arc-shaped track support inside the arc-shaped groove. A locking rod is fixedly connected to the side of the connecting rod inside the arc-shaped track support facing away from the support plate. The other end of the locking rod passes through the arc-shaped track support outside the arc-shaped track support.

[0014] Preferably, the arc surface of the arc-shaped track support is provided with an arc-shaped sliding hole II, which extends through the arc-shaped groove and is slidably engaged with the connecting rod.

[0015] Preferably, the arc-shaped track support has an arc-shaped sliding hole on the side away from the support plate, the arc-shaped sliding hole extends through the arc-shaped groove, and the arc-shaped sliding hole is slidably engaged with the locking rod.

[0016] Preferably, the end of the snap-fit ​​rod outside the arc-shaped track support has an external thread on the cylindrical surface.

[0017] Preferably, an installation tube is fixedly connected to the bottom surface of the acquisition device body, and the inner wall of the installation tube is provided with internal threads, and the installation tube is threadedly connected to the snap-fit ​​rod.

[0018] Compared with the prior art, the present invention provides a face image acquisition device, which has the following beneficial effects:

[0019] This facial image acquisition device, through its height and angle adjustment structure, enables flexible and precise adjustment of the device's height and angle. It can quickly adapt to the needs of people of different heights and diverse usage scenarios, effectively avoiding viewing angle deviations in the acquired images and significantly improving the quality of facial image acquisition. At the same time, the threaded connection installation method greatly simplifies the installation and disassembly process of the acquisition device itself, reduces labor and time costs, improves the efficiency of equipment maintenance and replacement, and provides a reliable guarantee for subsequent applications such as facial recognition and identity verification. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the rotating structure of this utility model;

[0022] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0023] Figure 4 This is a cross-sectional schematic diagram of the arc-shaped slide rail of this utility model.

[0024] In the diagram: 1. C-shaped bracket; 2. Arc-shaped track support; 3. Support plate; 4. Sliding hole; 5. Arc-shaped sliding hole one; 6. Arc-shaped sliding hole two; 7. Motor; 8. Connecting rod; 9. Data acquisition device body; 10. Hydraulic cylinder mounting cavity; 11. Double-rod hydraulic cylinder; 12. Slider; 13. Arc-shaped groove; 14. Clamping rod; 15. Mounting tube. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 A facial image acquisition device includes a C-shaped bracket 1 and an acquisition device body 9. One side of the symmetrical two sides of the C-shaped bracket 1 is fixed to the ground. The acquisition device body 9 is mounted on the C-shaped bracket 1. The device also includes:

[0027] Hydraulic cylinder mounting cavity 10 is located in the middle side of C-type bracket 1;

[0028] A sliding hole 4 is formed on the inner surface of the middle side of the C-type bracket 1. The sliding hole 4 extends into the hydraulic cylinder mounting cavity 10. The two ends of the sliding hole 4 face the two symmetrical sides of the C-type bracket 1.

[0029] The height adjustment structure is installed in the hydraulic cylinder mounting cavity 10. The height adjustment structure passes through the sliding hole 4 on the outside of the C-shaped bracket 1 and is used to adjust the height of the acquisition device body 9.

[0030] An angle adjustment structure is set on the height adjustment structure, and the acquisition device body 9 is installed on the angle adjustment structure to adjust the angle position of the acquisition device body 9.

[0031] Furthermore, the height adjustment structure includes a double-rod hydraulic cylinder 11, a slider 12, and a support plate 3. The double-rod hydraulic cylinder 11 is installed in the hydraulic cylinder mounting cavity 10. The piston rods at both ends of the double-rod hydraulic cylinder 11 correspond to the sliding holes 4. The piston rods of the double-rod hydraulic cylinder 11 are fixedly connected to the two side walls of the hydraulic cylinder mounting cavity 10. The slider 12 is fixedly connected to the side of the cylinder body of the double-rod hydraulic cylinder 11 opposite to the sliding hole 4. The other end of the slider 12 passes through the sliding hole 4 and is slidably connected to the sliding hole 4. The support plate 3 is fixedly connected to one end of the slider 12 outside the hydraulic cylinder mounting cavity 10. The double-rod hydraulic cylinder 11 is used to drive the support plate 3 to move up and down. The slider 12 is used to connect the support plate 3 and the double-rod hydraulic cylinder 11 and to ensure the stability of the lifting and lowering of the support plate 3.

[0032] Furthermore, an arc-shaped track support 2 is fixedly connected to the top surface of the support plate 3. The arc-shaped track support 2 is close to the C-shaped bracket 1 and the arc surface of the arc-shaped track support 2 is away from the C-shaped bracket 1. The arc-shaped track support 2 is used to support the arc-shaped track support 2, which is the movement track of the acquisition device body 9.

[0033] Furthermore, an arc-shaped groove 13 is provided inside the arc-shaped track support 2. The arc surface of the arc-shaped groove 13 corresponds to the arc-shaped track support 2. The arc-shaped groove 13 is used to guide the movement of the acquisition device body 9.

[0034] Furthermore, the angle adjustment structure includes a motor 7, a connecting rod 8, and a locking rod 14. The bottom surface of the main body of the motor 7 is fixedly connected to the top surface of the support plate 3. The output shaft of the motor 7 is connected to the connecting rod 8. One end of the connecting rod 8 is fixedly connected to the motor 7, and the other end of the connecting rod 8 faces the arc-shaped track support 2 and passes through the arc-shaped track support 2 inside the arc-shaped groove 13. The side of the connecting rod 8 inside the arc-shaped track support 2 away from the support plate 3 is fixedly connected to the locking rod 14. The other end of the locking rod 14 passes through the arc-shaped track support 2 outside the arc-shaped track support 2. The motor 7 is used to drive the connecting rod 8 to rotate, and the locking rod 14 is used to install the main body 9 of the acquisition device.

[0035] Furthermore, the arc surface of the arc-shaped track support 2 is provided with an arc-shaped sliding hole 6, which extends through to the arc-shaped groove 13. The arc-shaped sliding hole 6 is slidably engaged with the connecting rod 8, and the connecting rod 8 slides on the arc-shaped sliding hole 6, which enables the connecting rod 8 to slide stably within the arc-shaped track support 2.

[0036] Furthermore, the side of the arc-shaped track support 2 facing away from the support plate 3 is provided with an arc-shaped sliding hole 5, which extends through to the arc-shaped groove 13. The arc-shaped sliding hole 5 is slidably engaged with the locking rod 14, and the arc-shaped sliding hole 5 allows the locking rod 14 to slide stably within the arc-shaped track support 2.

[0037] Furthermore, the locking rod 14 has an external thread on its cylindrical surface at one end outside the arc-shaped track support 2. The external thread of the locking rod 14 is used for installation with the main body 9 of the data acquisition device.

[0038] Furthermore, an installation tube 15 is fixedly connected to the bottom surface of the acquisition device body 9. The inner wall of the installation tube 15 is provided with internal threads. The installation tube 15 is threadedly connected to the snap-fit ​​rod 14. The snap-fit ​​rod 14 and the installation tube 15 are threadedly connected, which facilitates disassembly and assembly and changes the angle of the acquisition device body 9.

[0039] Structural Description: C-shaped bracket 1: Shaped like a "C", with one side of the symmetrical two sides fixed to the ground, it serves as the main support structure of the device and provides an installation base for other components. At the same time, its unique C-shaped design provides a suitable working space for the main body 9 of the acquisition device, which is convenient for facial image acquisition.

[0040] Arc-shaped track support 2: It has an arc-shaped structure with the arc surface facing away from the C-shaped bracket 1 and is fixed on the top surface of the support plate 3. It is used to support the movement of the acquisition device body 9. The arc-shaped groove 13 inside provides guidance for the movement of the acquisition device body 9. The arc-shaped sliding hole 1 5 and arc-shaped sliding hole 2 6 on the outside cooperate with the angle adjustment structure to enable the acquisition device body 9 to make stable angle adjustments.

[0041] Support plate 3: It is flat and one end is fixedly connected to slider 12. In the height adjustment structure, it plays the role of bearing and transmitting motion, transmitting the lifting motion of double-rod hydraulic cylinder 11 to the upper arc-shaped track support 2 and the collection device body 9 to realize the height adjustment function.

[0042] Sliding hole 4: It is formed on the inner surface of the middle side of the C-shaped bracket 1, and has a through hole structure with both ends facing the two symmetrical sides of the C-shaped bracket 1. It provides a channel for the sliding of the slider 12, so that the slider 12 can move stably between the hydraulic cylinder mounting cavity 10 and the outside of the C-shaped bracket 1, thereby realizing the motion transmission of the height adjustment structure.

[0043] Arc-shaped sliding hole 5: It is opened on the side of the arc-shaped track support 2 away from the support plate 3. It is an arc-shaped hole that extends through the arc-shaped groove 13 and slides with the locking rod 14 to ensure that the locking rod 14 slides stably in the arc-shaped track support 2, which helps to adjust the angle of the acquisition device body 9.

[0044] Arc-shaped sliding hole 2 6: Located on the arc surface of the arc-shaped track support 2, it is also an arc-shaped hole that extends through the arc-shaped groove 13 and slides into the connecting rod 8, so that the connecting rod 8 slides stably in the arc-shaped track support 2, ensuring the smoothness of the movement during the angle adjustment process;

[0045] Motor 7: The main body is approximately cubic in shape, with its bottom surface fixed to the top surface of the support plate 3. It serves as the power source for the angle adjustment structure and drives the connecting rod 8 to rotate through the output shaft, providing power for the angle adjustment of the main body 9 of the acquisition device.

[0046] Link 8: It is rod-shaped, with one end fixedly connected to the output shaft of motor 7, and the other end passing through the arc-shaped track support 2 and entering the arc-shaped groove 13. Under the drive of motor 7, it transmits the rotational motion to the snap-fit ​​rod 14, thereby driving the main body 9 of the acquisition device to rotate.

[0047] Acquisition device body 9: Depending on the actual use requirements, it may be in the shape of various cameras or other devices, used for acquiring face images. Under the action of the height adjustment structure and the angle adjustment structure, it is adjusted to a suitable position and angle to obtain high-quality face images.

[0048] Hydraulic cylinder mounting cavity 10: It is located in the middle side of the C-type bracket 1 and is cavity-shaped. It is used to install the double-rod hydraulic cylinder 11, providing installation space for the height adjustment structure and ensuring the stable operation of the double-rod hydraulic cylinder 11.

[0049] Double-rod hydraulic cylinder 11: It is cylindrical in appearance and is installed in the hydraulic cylinder mounting cavity 10. As the core power component of the height adjustment structure, it drives the cylinder body to move relative to each other through hydraulic power, thereby driving the slider 12, support plate 3 and acquisition device body 9 to rise and fall, so as to achieve height adjustment.

[0050] Slider 12: Shaped like a rectangular block, one end is fixed to the cylinder body of the double-rod hydraulic cylinder 11, and the other end passes through the sliding hole 4. During the height adjustment process, it connects the double-rod hydraulic cylinder 11 and the support plate 3, transmits the movement of the hydraulic cylinder to the support plate 3, and ensures the stability of the lifting and lowering of the support plate 3.

[0051] Arc groove 13: It is formed inside the arc track support 2 and is shaped as an arc groove. The arc surface corresponds to the arc track support 2. It provides guidance for the movement of the collection device body 9, so that it can move along a specific arc trajectory and facilitate angle adjustment.

[0052] Clip rod 14: It is rod-shaped, with one end fixed to the connecting rod 8 in the arc groove 13, and the other end has an external thread on the outer cylindrical surface of the arc track support 2. It is used to install the acquisition device body 9. It rotates under the drive of the connecting rod 8, thereby driving the acquisition device body 9 to rotate around the corresponding axis to achieve multi-angle adjustment.

[0053] Mounting tube 15: It is tubular in shape with internal threads on the inner wall. It is fixed to the bottom surface of the acquisition device body 9 and is connected to the snap-fit ​​rod 14 by thread to realize the installation and disassembly of the acquisition device body 9. At the same time, when adjusting the angle, it can rotate with the snap-fit ​​rod 14 to change the angle of the acquisition device body 9.

[0054] Working principle: When the height of the acquisition device body 9 needs to be adjusted, the double-rod hydraulic cylinder 11 is activated. Since the piston rods at both ends are fixedly connected to the two side walls of the hydraulic cylinder mounting cavity 10, the cylinder body moves relative to the hydraulic force. The slider 12, fixedly connected to the side of the cylinder body opposite to the sliding hole 4, slides within the sliding hole 4 as the cylinder body moves. The support plate 3, fixedly connected to the end of the slider 12 outside the hydraulic cylinder mounting cavity 10, also rises and falls synchronously. The height of the subsequent structures associated with the support plate 3 and the acquisition device body 9 is thus adjusted, meeting the acquisition needs of people of different heights and avoiding image quality issues caused by viewing angle deviations. In the angle adjustment stage, after the motor 7 is started, its output shaft drives the connecting rod 8 to rotate. One end of the connecting rod 8 passes through the arc-shaped track support 2 and enters the arc-shaped groove 13. Because the arc-shaped sliding hole 6 on the arc surface of the arc-shaped track support 2 slides and engages with the connecting rod 8, the connecting rod... The connecting rod 8 can slide stably on the arc-shaped sliding hole 6, and then make circular motion in the arc-shaped groove 13. The locking rod 14, which is fixedly connected to one end of the connecting rod 8 in the arc-shaped track support 2, will also move with the rotation of the connecting rod 8. The locking rod 14 is slidably locked with the arc-shaped sliding hole 5 opened on the side of the arc-shaped track support 2 away from the support plate 3, to ensure the stability of its movement. The acquisition device body 9 is threadedly connected to the locking rod 14 through the mounting tube 15. Therefore, the rotation of the locking rod 14 can drive the acquisition device body 9 to rotate around the corresponding axis, realize multi-angle adjustment, and accurately adapt to different usage scenarios to obtain the best acquisition angle. Through the cooperation of the height adjustment structure and the angle adjustment structure, this device can flexibly and efficiently adjust the height and angle of the acquisition device body 9 according to the actual acquisition needs, to ensure the acquisition of high-quality face images, and provide reliable data support for subsequent face recognition, identity verification and other applications.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A face image acquisition device, comprising a C-shaped support (1) and an acquisition device body (9), one side of the C-shaped support (1) is fixed on the ground, and the acquisition device body (9) is installed on the C-shaped support (1), characterized in that, Also includes: Hydraulic cylinder mounting cavity (10) is opened in the middle side of the C-type bracket (1); A sliding hole (4) is formed on the inner surface of the middle side of the C-shaped bracket (1). The sliding hole (4) extends through the hydraulic cylinder mounting cavity (10). The two ends of the sliding hole (4) face the two symmetrical sides of the C-shaped bracket (1). The height adjustment structure is set in the hydraulic cylinder mounting cavity (10), and the height adjustment structure passes through the sliding hole (4) outside the C-type bracket (1) to adjust the height of the acquisition device body (9); An angle adjustment structure is provided on the height adjustment structure, and the acquisition device body (9) is installed on the angle adjustment structure to adjust the angle position of the acquisition device body (9).

2. The face image acquisition device according to claim 1, characterized in that, The height adjustment structure includes a double-rod hydraulic cylinder (11), a slider (12), and a support plate (3). The double-rod hydraulic cylinder (11) is installed in the hydraulic cylinder mounting cavity (10). The piston rods at both ends of the double-rod hydraulic cylinder (11) correspond to the sliding hole (4). The piston rods of the double-rod hydraulic cylinder (11) are fixedly connected to the two side walls of the hydraulic cylinder mounting cavity (10). The slider (12) is fixedly connected to the side of the cylinder body of the double-rod hydraulic cylinder (11) opposite to the sliding hole (4). The other end of the slider (12) passes through the sliding hole (4) and is slidably connected to the sliding hole (4). The support plate (3) is fixedly connected to one end of the slider (12) outside the hydraulic cylinder mounting cavity (10).

3. The face image acquisition apparatus according to claim 2, characterized in that, The top surface of the support plate (3) is fixedly connected to an arc-shaped track support (2), which is close to the C-shaped bracket (1) and the arc surface of the arc-shaped track support (2) is away from the C-shaped bracket (1).

4. The face image acquisition apparatus according to claim 3, characterized in that, The arc-shaped track support (2) has an arc-shaped groove (13) inside, and the arc surface of the arc-shaped groove (13) corresponds to the arc-shaped track support (2).

5. The face image acquisition apparatus according to claim 4, characterized in that, The angle adjustment structure includes a motor (7), a connecting rod (8), and a locking rod (14). The bottom surface of the main body of the motor (7) is fixedly connected to the top surface of the support plate (3). The output shaft of the motor (7) is connected to the connecting rod (8). One end of the connecting rod (8) is fixedly connected to the motor (7). The other end of the connecting rod (8) faces the arc-shaped track support (2) and passes through the arc-shaped track support (2) inside the arc-shaped groove (13). The side of the connecting rod (8) inside the arc-shaped track support (2) away from the support plate (3) is fixedly connected to the locking rod (14). The other end of the locking rod (14) passes through the arc-shaped track support (2) outside the arc-shaped track support (2).

6. The face image acquisition apparatus according to claim 5, characterized in that, The arc surface of the arc-shaped track support (2) is provided with an arc-shaped sliding hole (6), which extends through the arc-shaped groove (13) and is slidably engaged with the connecting rod (8).

7. The face image acquisition apparatus according to claim 5, wherein The arc-shaped track support (2) has an arc-shaped sliding hole (5) on the side away from the support plate (3). The arc-shaped sliding hole (5) extends through the arc-shaped groove (13) and is slidably engaged with the locking rod (14).

8. A face image acquisition device according to claim 5, characterized in that, The snap-fit ​​rod (14) has an external thread on its cylindrical surface at one end outside the arc-shaped track support (2). 9.The face image acquisition device according to claim 6, characterized in that, The bottom surface of the main body (9) of the acquisition device is fixedly connected to the mounting tube (15), the inner wall of the mounting tube (15) is provided with internal thread, and the mounting tube (15) is threadedly connected to the snap rod (14).

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