Depth camera multi-dimensional adjusting device

Abstract

The utility model provides a multi-dimensional adjusting device for a depth camera. The multi-dimensional adjusting device comprises a height adjusting mechanism, a telescopic adjusting mechanism, an angle adjusting mechanism and a rack. According to the height adjusting mechanism, a stepping motor drives a ball screw to rotate through a stepping motor connecting base, the ball screw drives a box-type sliding block to move up and down along a linear sliding rail and a vertical sliding block which are vertically arranged, and height adjustment of the camera is achieved. The telescopic adjusting mechanism comprises a T-shaped square pipe and an inner square pipe and is fixed to the height adjusting mechanism through a corner connector, and the inner square pipe can horizontally stretch out and draw back in the T-shaped square pipe to achieve adjustment in the horizontal direction. The angle adjusting mechanism is composed of a rotating support, a camera fixing support, a step screw, a fixing screw and a screw, the rotating support is fixedly connected to the inner square pipe through threads, and the camera fixing support can rotate along an arc-shaped groove to conduct angle adjustment. The three adjusting mechanisms can realize multi-dimensional adjustment of the depth camera in the vertical direction, the horizontal direction and the rotating posture, adapt to different collection scenes and improve the installation flexibility of the depth camera.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machine vision identification relates to a depth camera multidimensional adjusting device. BACKGROUND

[0002] With the rapid development of machine vision technology, depth cameras have been widely used in robot navigation, target recognition, three-dimensional reconstruction, automation detection and other fields. Depth cameras can capture three-dimensional information of a scene, providing more accurate environmental perception capabilities for intelligent systems. However, in practical applications, in order to ensure the quality and accuracy of data collected by depth cameras, their installation angles and positions need to be flexibly adjusted according to specific work scenarios.

[0003] Traditional depth camera mounting devices can usually only achieve single-direction adjustment, or have complex structures and are difficult to meet the image shooting needs of various complex scenarios. In addition, for some specific scenarios, such as the need to collect multi-angle and multi-height image data for depth learning training, existing mounting devices are difficult to quickly adjust the posture position of the camera, reducing work efficiency and data collection quality. Therefore, designing a depth camera multidimensional adjusting device that can be flexibly adjusted and stable not only meets the needs of different application scenarios, but also improves data collection efficiency and quality, has important practical value and promotional significance. SUMMARY

[0004] The purpose of the utility model is to propose a depth camera multidimensional adjusting device that can be installed on a mobile chassis to solve the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a depth camera multidimensional adjusting device is designed, which includes a height adjusting mechanism, a telescopic adjusting mechanism, an angle adjusting mechanism and a rack. The ball screw of the height adjusting mechanism is fixed on the rack through a bearing with seat, and vertical direction adjustment is realized through the ball screw; the telescopic adjusting mechanism is a telescopic structure, realizing horizontal direction movement adjustment; the angle adjusting mechanism carries a depth camera, and angle adjustment is realized through the rotation of the camera fixing support relative to the rotating support.

[0006] Furthermore, the height adjustment mechanism includes a linear slide rail, a vertical slider, a box-type slider, a ball screw, a support block, a stepper motor, and a stepper motor connecting base. The linear slide rail is fixed to the frame by bolts and is vertically positioned. The vertical slider can slide vertically on the linear slide rail, which is marked with graduations indicating the distance from the horizontal center of the depth camera to the bottom surface. The ball screw is fixed to the frame at both ends by bearings with mounting brackets. One end of the ball screw is connected to the stepper motor, which is fixed to the frame via a stepper motor connecting base and bolts. The ball screw is equipped with a box-type slider that engages with its threads. When the stepper motor drives the ball screw to rotate, the box-type slider moves vertically along the linear slide rail, thereby achieving vertical adjustment.

[0007] Furthermore, the telescopic adjustment mechanism includes a T-shaped square tube, an inner square tube, and angle brackets. The T-shaped square tube is hollow, and the inner square tube can be inserted into it. The T-shaped square tube is horizontally fixedly connected to the vertical sliders at both ends and the box-type slider via angle brackets, and can move vertically with the box-type slider. The exposed end of the inner square tube has external threads, and is fixedly connected to the rotating bracket in the angle adjustment mechanism via threads. Inserting the inner square tube into the T-shaped square tube enables horizontal telescopic adjustment. When the inner square tube moves inside the T-shaped square tube, it is limited to prevent it from extending too far and falling out of the T-shaped square tube.

[0008] Furthermore, the angle adjustment mechanism includes a camera mounting bracket, a rotating bracket, a stepped screw, a screw, and a fixing screw. The camera mounting bracket secures the depth camera to the rotating bracket via the fixing screw. Both sides of the camera mounting bracket are connected to the rotating bracket via stepped screws. One side of the camera mounting bracket is engraved with the rotation angle. One side of the rotating bracket has an arc-shaped groove and a scale window. The camera mounting bracket can rotate within the arc-shaped groove. The screw, combined with the arc-shaped groove, can be used to fix the rotation angle. The scale window is used to observe the current angle of the depth camera.

[0009] The height adjustment mechanism is connected to the T-shaped square tube of the telescopic adjustment mechanism via a box-type slider and an angle bracket. The telescopic adjustment mechanism is connected to the rotating bracket of the angle adjustment mechanism via an inner square tube and a threaded connection. This allows the height adjustment mechanism, telescopic adjustment mechanism, and angle adjustment mechanism to be connected to each other in sequence, so that the depth camera mounted on the camera mounting bracket can be adjusted in three dimensions: vertical, horizontal, and rotation angle.

[0010] Furthermore, all the frames are constructed using aluminum profiles, and all frames are detachable. The ends of the aluminum profiles are fixedly connected by angle brackets and bolts. The bottom of the frame is equipped with two feet, which allows it to be easily installed on the chassis and also increases stability.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention provides a multi-dimensional adjustment device for a depth camera mounted on a mobile chassis, capable of adjustment in the vertical, horizontal, and rotational directions. Through its flexible multi-dimensional adjustment function, this device allows the depth camera to quickly adapt to complex acquisition environments, ensuring comprehensive coverage and accurate capture of the target area, avoiding data omissions caused by fixed viewpoints. In the field of machine vision recognition, this device significantly improves the efficiency and quality of data acquisition, providing strong support for building high-quality datasets. Particularly in dynamic environments, it enables efficient scanning and real-time adjustment of targets at multiple angles and distances, greatly enhancing the system's adaptability and practicality. Attached Figure Description

[0013] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the structure of a camera mounting bracket in an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the assembly of a camera mounting bracket according to an embodiment of the present utility model;

[0016] Figure 3 This is an assembly diagram of a camera mounting bracket and a rotating bracket according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the assembly of a height adjustment mechanism according to an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of an overall multi-dimensional adjustment device for a depth camera in an embodiment of this utility model;

[0019] Attached image caption:

[0020] 1. Camera mounting bracket; 2. Screw holes; 3. Depth camera; 4. Rotating bracket; 5. Stepped screw; 6. Arc groove; 7. Screw; 8. Scale window; 9. Fixing screw; 10. Frame; 11. Ball screw; 12. Support block; 13. Box-type slider; 14. Vertical slider; 15. Linear guide rail; 16. Stepper motor connecting base; 17. Bearing with seat; 18. Angle bracket; 19. Stepper motor; 20. Foot; 21. T-shaped square tube; 22. Inner square tube. Detailed Implementation

[0021] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0022] Please see Figures 1-5 This invention provides a multi-dimensional adjustment device for a depth camera mounted on a mobile chassis, including a height adjustment mechanism, a telescopic adjustment mechanism, and an angle adjustment mechanism, capable of adjustment in the vertical, horizontal, and rotational directions. This allows the depth camera to quickly adapt to complex acquisition environments, ensuring comprehensive coverage and accurate capture of the target area.

[0023] Figure 1 This is a schematic diagram of a fixing bracket according to an embodiment of the present utility model. Figure 1 As can be seen, the camera mounting bracket 1 has a concave structure with four screw holes 2 on the rear side. These screw holes 2 are used to secure the depth camera 3 to the camera mounting bracket 1. The size of the screw holes 2 matches the mounting and positioning holes of the depth camera 3, and screws of different sizes such as M2, M3, and M4 can be used for fixing. A slot is designed at the rear of the camera mounting bracket 1 to facilitate the cable routing of the depth camera 3, supporting shooting control and data transmission. Furthermore, this slot not only serves as a cable routing area but also allows for the installation of a wireless transmission module, enabling wireless control of the depth camera and wireless data transmission.

[0024] Figure 2 This is a schematic diagram illustrating the assembly of a camera mounting bracket according to an embodiment of this utility model. Figure 2 As can be seen, the camera mounting bracket 1 fixes the depth camera 3 in the groove. Figure 2 The image shows one form of a depth camera. It is understood that all types of depth cameras are suitable for mounting on the camera mounting bracket 1.

[0025] Figure 3 This is a schematic diagram illustrating the assembly of a camera mounting bracket and a rotating bracket according to an embodiment of this utility model. Figure 3As can be seen, the camera mounting bracket 1 is fixedly connected to the depth camera 3 by four fixing screws 9. The rotating bracket 4 has stepped screws 5, arc-shaped grooves 6, screws 7, and scale windows 8. There is a stepped screw 5 on each side of the rotating bracket 4, which is used to rotate the camera mounting bracket 1 and the rotating bracket 4, but not completely lock them. The arc-shaped grooves 6 and screws 7 are used together to rotate, realizing the angle adjustment function, with a rotation range of 0 degrees to 60 degrees. There is a hole on the camera mounting bracket 1 at the same position as the stepped screws 5 for installing the screws 7. When the screws 7 are tightened, the positions of the camera mounting bracket 1 and the rotating bracket 4 are locked, thereby fixing the angle of the depth camera 3. The rotating bracket 4 has scale windows 8 for observing the current rotation angle of the depth camera 3. The 0-degree positions of the stepped screws 5, screws 7, and scale windows 8 are on the same straight line. There is space between the top of the depth camera 3 and the rotating bracket 4 to prevent interference between the depth camera 3 and the rotating bracket 4 when rotating. The rotating bracket 4 has a threaded hole on one side of its top for threaded connection with the inner square tube 22; the inner square tube 22 has a cylindrical external thread at one exposed end, and the inner square tube 22 is threadedly fixed to the threaded hole of the rotating bracket 4 through the external thread.

[0026] Figure 4 This is a schematic diagram of the assembly of a height adjustment mechanism according to an embodiment of the present invention. Figure 4 As can be seen, the ball screw 11 is fixed to the frame 10 by a bearing 17, and a box-type slider 13 is mounted on the ball screw 11. The linear guide rail 15 is fixed to the frame 10 by a support block 12, and the vertical slider 14 can slide linearly on the linear guide rail 15. The stepper motor 19 rotates to drive the box-type slider 13 of the ball screw 11 to move vertically, thereby achieving the height adjustment function. The frame is constructed of aluminum profiles and fixed by angle brackets 18, and the bottom of the frame is equipped with two feet 20.

[0027] Figure 5 This is a schematic diagram of an overall depth camera multi-dimensional adjustment device according to an embodiment of this utility model. Figure 5As can be seen, the T-shaped square tube 21 is fixedly connected to the vertical sliders 14 at both ends and the box-type slider 13 via angle brackets 18. The T-shaped square tube 21 is hollow, and the inner square tube 22 can be inserted into the T-shaped square tube 21 for telescopic movement, thereby realizing the horizontal adjustment function. A notch is cut out on each side of the T-shaped square tube 21 to prevent interference between the T-shaped square tube 21 and the support block 12 during vertical adjustment. The exposed end of the inner square tube 22 has a cylindrical thread for fixed connection with the rotating bracket 4. Through the fixed connection between the T-shaped square tube 21 and the box-type slider 13 and the fixed connection between the inner square tube 22 and the rotating bracket 4, the entire mechanism can be adjusted vertically, horizontally, and at the rotation angle simultaneously. The linear slide rail 15 is marked with a scale that indicates the distance from the horizontal center position of the depth camera 3 to the bottom surface of the foot 20, with a scale range from 20cm to 65cm. The bottom of the device is provided with a foot 20, which is fixedly connected to the movable chassis by bolts to bear the weight of the device. Meanwhile, the frame 10, support block 12, vertical slider 14, linear slide rail 15, corner bracket 18, and base 20 of the overall device are all symmetrically arranged to maintain the balance and stability of the device.

[0028] The working principle of this utility model is as follows: During installation, the base 20 of this utility model is fixed to the movable chassis using bolts. The working process is as follows: When acquiring data and taking pictures of a designated area, first, the stepper motor 19 is driven to rotate the ball screw 11 according to the target height to adjust the height of the box-type slider 13 in the height adjustment mechanism. After the telescopic adjustment mechanism is at a suitable height, the stepper motor 19 is no longer driven, and this height is fixed. Then, the inner square tube 22 is manually extended and retracted for horizontal adjustment. Finally, the screw 7 in the arc groove of the rotating bracket 4 is rotated to adjust the angle. The selection of the height distance, telescopic distance, and rotation angle needs to be determined according to the field of view of the depth camera 3 and the specific target shooting requirements. The depth camera 3 is connected to a computer, and the computer controls the depth camera 3 to take clear pictures of the entire target area. The chassis fixed to this utility model is then moved to the next shooting area, and the above working process is repeated.

[0029] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "angle", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-dimensional adjustment device for a depth camera, characterized in that, The system includes a height adjustment mechanism, a telescopic adjustment mechanism, an angle adjustment mechanism, and a frame (10). The height adjustment mechanism includes a linear slide rail (15), a vertical slider (14), a box slider (13), a ball screw (11), a support block (12), a stepper motor (19), and a stepper motor connecting base (16). The linear slide rail (15) is vertically set and connected to the frame (10). The vertical slider (14) can move vertically along the linear slide rail (15). The box slider (13) is threadedly engaged with the ball screw (11) to achieve height adjustment. The telescopic adjustment mechanism includes a T-shaped square tube (21), an inner square tube (22), and an angle bracket (18). The T-shaped square tube (21) is connected to the height adjustment mechanism. The structure is connected by a corner bracket (18). The inner square tube (22) is inserted into the T-shaped square tube (21) and can move horizontally relative to the T-shaped square tube (21). The angle adjustment mechanism includes a camera fixing bracket (1), a rotating bracket (4), a step screw (5), a screw (7), and a fixing screw (9). The rotating bracket (4) is provided with an arc groove (6). The camera fixing bracket (1) is rotatably connected to the rotating bracket (4) and can rotate along the arc groove (6) to achieve angle adjustment. The rotating bracket (4) is threadedly fixed to the inner square tube (22). The above three adjustment mechanisms are connected to each other in sequence, so that the depth camera can achieve multi-dimensional adjustment of vertical adjustment, horizontal adjustment and angle adjustment.

2. The multi-dimensional adjustment device for a depth camera according to claim 1, characterized in that, The ball screw (11) of the height adjustment mechanism is fixed to the frame (10) by a bearing seat. One end of the ball screw (11) is connected to the stepper motor (19). The stepper motor (19) is fixed to the frame (10) by the stepper motor connection base (16) and bolts. The ball screw (11) is equipped with a box-type slider (13). The box-type slider (13) is connected to the linear slide rail (15) by a vertical slider (14). The linear slide rail (15) is fixed to the frame (10) by bolts and a support block (12). The vertical slider (14) can slide linearly on the linear slide rail (15). The linear slide rail (15) is marked with a scale, which can indicate the distance between the horizontal center position of the depth camera (3) and the bottom surface of the foot (20). The scale range is from 20cm to 65cm.

3. The multi-dimensional adjustment device for a depth camera according to claim 1, characterized in that, The T-shaped square tube (21) of the telescopic adjustment mechanism is hollow, and the inner square tube (22) can be inserted into the T-shaped square tube (21). The T-shaped square tube (21) is horizontally fixedly connected to the vertical sliders (14) at both ends and the box slider (13) through the angle bracket (18), and can move vertically with the box slider (13). The inner square tube (22) has one end exposed and is threadedly connected to the angle adjustment mechanism. The insertion of the inner square tube (22) into the T-shaped square tube (21) can realize horizontal telescopic movement. The T-shaped square tube (21) is moved, and a notch is cut off on each side to prevent interference between the T-shaped square tube (21) and the support block (12) when adjusting vertically. The inner square tube (22) is limited when moving inside the T-shaped square tube (21) to prevent the inner square tube (22) from extending too far out of the T-shaped square tube (21) and falling out. The connection between the telescopic adjustment mechanism and the height adjustment mechanism is fixed by four corner brackets (18), which ensures the stability of the lifting and lowering of the mechanism and improves the overall rigidity of the device.

4. The multi-dimensional adjustment device for a depth camera according to claim 1, characterized in that, The camera mounting bracket (1) of the angle adjustment mechanism is fixed to the depth camera (3) by fixing screws (9). The two sides of the camera mounting bracket (1) are connected to the rotating bracket (4) by step screws (5), but are not completely locked. The rotation angle is engraved on one side of the camera mounting bracket (1). The rotating bracket (4) has an arc groove (6) and a scale window (8) on one side. The arc groove (6) and the screw (7) are combined to make the camera mounting bracket (1) rotate relative to the rotating bracket (4). The rotation range is from 0 degrees to 60 degrees. When the screw (7) is tightened, the positions of the camera mounting bracket (1) and the rotating bracket (4) are locked, thereby fixing the angle of the depth camera (3). The scale window (8) is used to observe the current angle of the depth camera (3). The rotating bracket (4) is connected to the inner square tube (22) of the telescopic adjustment mechanism, which can realize horizontal adjustment when the depth camera (3) rotates.

5. The depth camera multi-dimensional adjustment device according to claim 1, characterized in that, The frame (10) is constructed with aluminum profiles. The frame (10) is detachable. The ends of the aluminum profiles are fixedly connected by corner brackets (18) and bolts. The bottom of the frame is equipped with two feet (20) so that it can be easily installed on the chassis and increase stability. At the same time, the frame (10), support block (12), vertical slider (14), linear slide rail (15), corner bracket (18), and feet (20) of the whole device are symmetrically arranged to maintain the balance and stability of the device.

6. The multi-dimensional adjustment device for a depth camera according to claim 1, characterized in that, The vertical adjustment function of the device is achieved by a stepper motor (19) driving a ball screw (11) to move a box-type slider (13) vertically along a linear slide rail (15); the horizontal adjustment function of the device is achieved by the inner square tube (22) telescopically moving within a T-shaped square tube (21); the T-shaped square tube (21) of the telescopic adjustment mechanism is fixedly connected to the box-type slider (13) via a corner bracket (18), which can achieve both horizontal adjustment and vertical movement; the angle adjustment function of the device is achieved by the camera fixing bracket (1) rotating within the arc groove (6) of the rotating bracket (4); the camera fixing bracket (1) equipped with a depth camera (3) rotates within the arc groove (6) of the rotating bracket (4); through the connection between the rotating bracket (4) and the inner square tube (22), the entire mechanism can simultaneously perform vertical, horizontal, and rotation angle adjustments; the bottom of the device is provided with feet (20), which are fixedly connected to a movable chassis via bolts to bear the weight of the device.

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