Optical axis adjusting mechanism and imaging device

Abstract

The utility model relates to the technical field of security and protection monitoring, and provides an optical axis adjusting mechanism and a camera device. The optical axis adjusting mechanism comprises a first support, a second support, an assembling rack and an adapter plate. The first support comprises a first assembling part and a second assembling part which are connected and arranged at an angle. The adapter plate is locked on the first assembly part; the second bracket is connected to the adapter plate, is provided with a first rotating shaft and is used for connecting the lens module; the assembling rack is connected to the second assembling part and provided with a second rotating shaft, and the second rotating shaft and the first rotating shaft are arranged at an angle; the first support can rotate around the second rotating shaft relative to the assembling rack, and the second support can rotate around the first rotating shaft relative to the adapter plate. The optical axis adjusting mechanism further comprises a locking assembly used for locking the second support to the adapter plate and locking the first support to the assembling rack. The optical axis adjusting mechanism provided by the utility model can meet the adjustment of the optical axis of the lens, has a relatively large adjustment range and relatively high adjustment precision, and is convenient to operate and simple in structure.

Description

Technical Field

[0001] This application relates to the field of security monitoring technology, and in particular to an optical axis adjustment mechanism and a camera device. Background Technology

[0002] In security monitoring systems, infrared cameras typically use a combination of infrared and visible light lenses. During monitoring, the target object needs to be centered within the fields of view of both lenses to achieve a satisfactory image fusion effect. However, due to assembly errors and manufacturing defects that accumulate to create optical center errors, the target object often cannot be centered within the fields of view. Therefore, it is necessary to adjust the optical axes of the lenses to best meet the image fusion requirements.

[0003] In related technologies, a nut and screw are typically used to adjust the lens mounting position, thereby achieving optical axis adjustment; alternatively, a combination of screws or bolts and springs can be used. During adjustment, the screw needs to be rotated to move the lens along its axial direction. In practical use, to ensure high connection reliability, multiple sets of nuts and screws are often used. This means that each set of screws needs to be adjusted every time, which is time-consuming and labor-intensive. Moreover, the screws constrain each other, resulting in a small adjustment range and poor accuracy. Utility Model Content

[0004] Therefore, it is necessary to provide an optical axis adjustment mechanism that, while satisfying the optical axis adjustment of the lens, also takes into account a large adjustment range and high adjustment accuracy. It is not only easy to operate and simple in structure, but also improves structural stability.

[0005] An optical axis adjustment mechanism includes a first bracket, a second bracket, an assembly frame, and an adapter plate. The first bracket includes a first assembly part and a second assembly part, which are connected and angled together. The adapter plate is locked to the first assembly part. The second bracket is connected to the adapter plate and has a corresponding first rotating shaft. The second bracket is used to connect a lens module. The assembly frame is connected to the second assembly part and has a corresponding second rotating shaft, which is angled relative to the first rotating shaft. The first bracket is rotatable relative to the assembly frame around the second rotating shaft, and the second bracket is rotatable relative to the adapter plate around the first rotating shaft. The optical axis adjustment mechanism further includes a locking component for locking the second bracket to the adapter plate and for locking the first bracket to the assembly frame.

[0006] Understandably, this optical axis adjustment mechanism utilizes the cooperation of the adapter plate and the second bracket, as well as the cooperation between the second assembly part and the assembly frame, to achieve adjustment of the lens module's pitch and yaw angles. Because the adapter plate is connected to the first assembly part, pitch and yaw angle adjustments are separated, reducing adjustment interference. Furthermore, the adapter plate isolates the rotation of the second bracket relative to the first bracket, improving structural stability. Throughout the adjustment process, the elimination of the nut and screw coupling eliminates the need for mutual constraints between multiple screws, increasing the adjustment range and improving adjustment accuracy. Moreover, the locking component only serves to lock and unlock; it does not directly affect the pitch and yaw angle adjustments. During adjustment, only the first and second brackets need to rotate around their respective first and second axes, simplifying the structure and operation.

[0007] In one embodiment, the first assembly portion and the second assembly portion are arranged perpendicularly, and / or the first rotating shaft and the second rotating shaft are arranged perpendicularly.

[0008] In one embodiment, the adapter plate includes an assembly portion and a locking portion. The locking portion is provided with a plurality of locking portions spaced around the outer periphery of the assembly portion. The locking portion protrudes axially relative to the assembly portion along the first rotating shaft. The assembly portion is locked to the first assembly portion. The locking portion is connected to the second bracket through the locking assembly.

[0009] In one embodiment, the shape of the second bracket is adapted to the shape of the adapter plate.

[0010] In one embodiment, the optical axis adjustment mechanism further includes a fastener connected to the adapter plate and the first assembly part; the second bracket is provided with a clearance channel for the fastener to pass through, and the fastener is movable within the clearance channel.

[0011] In one embodiment, the avoidance channel is arranged in an arc shape around the first pivot.

[0012] In one embodiment, the locking assembly includes a first locking member for locking the second bracket to the adapter plate; the locking assembly also includes a second locking member for locking the second assembly part to the assembly frame.

[0013] In one embodiment, the second bracket or the adapter plate is provided with a first guide channel, the first guide channel being arc-shaped around the first rotating shaft, the first locking member passing through the first guide channel and being able to move within the first guide channel; and / or, the assembly frame or the second assembly part is provided with a second guide channel, the second guide channel being arc-shaped around the second rotating shaft, the second locking member passing through the second guide channel and being able to move within the second guide channel.

[0014] In one embodiment, the first bracket further includes an extension connected to the first assembly portion and the second assembly portion and angled to the first assembly portion, the extension being connected to the assembly frame via the second locking member.

[0015] This application also provides a camera device, including a lens module and the above-mentioned optical axis adjustment mechanism; the lens module includes a lens body and a lens mount connected to the lens body, and the lens mount is connected to the second bracket in the optical axis adjustment mechanism.

[0016] In other words, by connecting the lens mount to the second bracket, the lens module is placed on the optical axis adjustment mechanism. The optical axis of the lens body can be adjusted by the rotation of the second bracket relative to the first bracket and the rotation of the first bracket relative to the assembly frame. This method is convenient to operate, has a simple structure, and improves the adjustment range and accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A first schematic diagram showing the connection between the optical axis adjustment mechanism and the lens module according to an embodiment of this application;

[0019] Figure 2 This is a first schematic diagram of an optical axis adjustment mechanism provided in an embodiment of this application;

[0020] Figure 3 This is a second schematic diagram of an optical axis adjustment mechanism provided in an embodiment of this application;

[0021] Figure 4 This is a second schematic diagram showing the connection between the optical axis adjustment mechanism and the lens module according to an embodiment of this application;

[0022] Figure 5This is a side view of the optical axis adjustment mechanism connected to the lens module according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram illustrating the connection between the second bracket and the lens module according to an embodiment of this application;

[0024] Figure 7 An exploded view showing the connection between the second bracket and the lens module provided in one embodiment of this application.

[0025] Reference numerals: 100, Optical axis adjustment mechanism; 110, First bracket; 111, First assembly part; 112, Second assembly part; 113, Extension part; 120, Second bracket; 121, Connecting hole; 122, Clearance channel; 123, First guide channel; 130, Assembly frame; 131, Assembly boss; 132, Second rotating hole; 141, First rotating shaft; 142, Second rotating shaft; 143, Bushing; 150, Locking assembly; 151, First locking element; 152, Second locking element; 160, Adapter plate; 161, Assembly part; 162, Locking part; 170, Fastener; 200, Lens module; 210, Lens body; 220, Lens holder; 230, Lens screw; 300, Target plate; 410, Horizontal axis; 420, Vertical axis; 1110, First rotating hole; 1121, Second guide channel. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when a component is referred to as being "fixed to" or "attached to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figures 1 to 3 This application provides an optical axis adjustment mechanism 100, including a first bracket 110, a second bracket 120, and an assembly frame 130. The first bracket 110 includes a first assembly portion 111 and a second assembly portion 112, which are connected and angled together. The second bracket 120 is connected to the first assembly portion 111 and has a corresponding first rotating shaft 141, and is used to connect a lens module 200. The assembly frame 130 is connected to the second assembly portion 112 and has a corresponding second rotating shaft 142, which is angled relative to the first rotating shaft 141. The first bracket 110 can rotate relative to the assembly frame 130 around the second rotating shaft 142, and the second bracket 120 can rotate relative to the first bracket 110 around the first rotating shaft 141. The optical axis adjustment mechanism 100 also includes a locking component 150, which is used to lock the first bracket 110 and the second bracket 120, and can also be used to lock the first bracket 110 and the assembly frame 130.

[0032] Understandably, the optical axis of the lens module 200 often uses a crosshair as a reference, with the target plate 300 as the adjustment reference. The target plate 300 also has a corresponding crosshair. Both crosshairs have a horizontal axis 410 and a vertical axis 420. When the horizontal axis 410 and vertical axis 420 on the lens are aligned with the horizontal axis 410 and vertical axis 420 on the target plate 300, optical axis adjustment is achieved. Figure 1 For example, regarding the horizontal axis 410, the pitch angle of the lens module 200 needs to be adjusted to ensure that the horizontal axis 410 of the lens module 200 coincides with the horizontal axis 410 on the target plate 300. Regarding the vertical axis 420, the yaw angle of the lens module 200 on the horizontal plane needs to be adjusted to ensure that the vertical axis 420 of the lens module 200 coincides with the vertical axis 420 on the target plate 300.

[0033] Therefore, regarding the optical axis adjustment mechanism 100 in this embodiment, the tilt and yaw angles of the lens module 200 can be adjusted by utilizing the cooperation between the first assembly part 111 and the second bracket 120, and the cooperation between the second assembly part 112 and the assembly frame 130. In actual use, the rotation of the second bracket 120 relative to the first assembly part 111 is used for yaw angle adjustment, and the rotation of the first bracket 110 relative to the assembly frame 130 via the second assembly part 112 is used for tilt angle adjustment. First, the locking component 150 locked between the second bracket 120 and the first bracket 110 is unlocked, and the second bracket 120 is rotated around the first rotating shaft 141 to adjust the position of the vertical axis 420 so that the two vertical axes 420 coincide; after coincidence, the locking component 150 is used to lock the second bracket 120 relative to the first bracket 110. Then, the locking assembly 150, which is locked between the first bracket 110 and the assembly frame 130, is unlocked, causing the first bracket 110 to rotate around the second pivot 142 via the second assembly part 112, adjusting the position of the horizontal axis 410 so that the two horizontal axes 410 coincide. After they coincide, the locking assembly 150 is used to lock the first bracket 110 relative to the assembly frame 130. In this way, the optical axis adjustment can be satisfied, ensuring that the target object can be placed in the center of the lens's field of view to meet the image fusion requirements.

[0034] Throughout the adjustment process, the placement of the first assembly part 111 and the second assembly part 112 facilitates the separation of pitch angle adjustment and yaw angle adjustment, reducing adjustment interference. Furthermore, by eliminating the need for a nut and screw coupling adjustment method, the mutual constraints between multiple screws are eliminated, increasing the adjustment range and thus improving adjustment accuracy. Moreover, the locking component 150 only serves to lock and unlock; it does not directly affect the pitch and yaw angle adjustments. During adjustment, only the first bracket 110 and the second bracket 120 need to rotate around their respective first and second rotating axes 141 and 142, simplifying the structure and operation.

[0035] Alternatively, the second bracket 120 can be rotated relative to the first assembly part 111 for pitch angle adjustment, and the first bracket 110 can be rotated relative to the assembly frame 130 for yaw angle adjustment. This is just an example.

[0036] Please see Figure 1 and Figure 5 In actual use, the first assembly part 111 and the second assembly part 112 are arranged vertically. This arrangement ensures that the assembly references of the second bracket 120 and the first assembly part 111, and the assembly references of the assembly frame 130 and the second assembly part 112, are perpendicular to each other, and are adapted to the vertical horizontal axis 410 and vertical axis 420. It is understood that the vertical arrangement of the horizontal axis 410 and the vertical axis 420 forms a symmetrical structure. If the horizontal axis 410 and the vertical axis 420 are not symmetrical, i.e., not perpendicular, it may affect image quality. Therefore, utilizing the verticality of the first assembly part 111 and the second assembly part 112 not only adapts to the cross-shaped symmetrical arrangement at the optical axis, but also facilitates the assembly of the lens module 200, simplifying operation.

[0037] Furthermore, the first rotating shaft 141 and the second rotating shaft 142 are arranged perpendicularly. The first rotating shaft 141 is arranged perpendicularly to the first assembly part 111, and the second rotating shaft 142 is arranged perpendicularly to the second assembly part 112. This improves the adjustment accuracy.

[0038] like Figure 1 and Figure 2 As shown, in some specific embodiments, the axial direction of the first rotating shaft 141 is along the Z-axis, the axial direction of the second rotating shaft 142 is along the X-axis, and the optical axis is along the Y-axis. The first assembly part 111 and the second assembly part 112 are L-shaped, and multiple reinforcing ribs spaced apart along the Y-axis are provided at the included angle between them to improve the connection strength. The first assembly part 111 and the second assembly part 112 can be welded or integrally formed, for example, by bending sheet metal; or, the first assembly part 111 and the second assembly part 112 can be bonded together.

[0039] Please continue reading. Figures 1 to 3 As one of the exemplary cases, the optical axis adjustment mechanism 100 also includes an adapter plate 160, which is connected to and locked to the first assembly part 111. The first rotating shaft 141 passes through the adapter plate 160 and is connected to the second bracket 120. The locking component 150 is capable of locking the second bracket 120 to the adapter plate 160.

[0040] In other words, the second bracket 120 is connected to the first assembly part 111 of the first bracket 110 via the adapter plate 160, thereby improving the protection of the first bracket 110 and facilitating the adjustment of the assembly of the second bracket 120 relative to the first bracket 110. Since the second bracket 120 cooperates with the adapter plate 160, when adjusting the rotation of the second bracket 120, it is only necessary to unlock or lock the second bracket 120 and the adapter plate 160, reducing wear on the first bracket 110. Furthermore, this design allows the adapter plate 160 to directly bear the bending moment and other loads during connection before transferring them to the first bracket 110, improving structural stability. Simultaneously, due to the adapter plate 160, if the size of the lens module 200 changes or the target installation position changes, the thickness or thinning of the adapter plate 160 can be adjusted to adapt to different installation requirements. For example, when the size of the lens module 200 is reduced, the lens module 200 can be raised as a whole by thickening the adapter plate 160; or, when the size of the lens module 200 is increased, the lens module 200 can be lowered as a whole by thinning the adapter plate 160.

[0041] like Figure 2 and Figure 3 As shown, optionally, the optical axis adjustment mechanism 100 also includes fasteners 170, which are connected to the adapter plate 160 and the first assembly part 111. This satisfies the assembly requirements of the adapter plate 160 relative to the first bracket 110, maintaining the stability of the adapter plate 160's position. Multiple fasteners 170 are arranged at intervals to improve the reliability of the connection between the adapter plate 160 and the first bracket 110. Simultaneously, as mentioned earlier, the adapter plate 160 directly bears the bending moment generated during lens module assembly, which can then be transmitted to the first bracket 110 through the fasteners 170. The multiple, spaced-apart fasteners 170 effectively distribute the force evenly, ensuring the overall structural stability.

[0042] like Figure 2As shown, the second bracket 120 further includes a clearance channel 122 for the fastener 170 to pass through, allowing the fastener 170 to move within the clearance channel 122. This arrangement reduces the rotational interference of the fastener 170 on the second bracket 120. The clearance channel 122 is arc-shaped, surrounding the first pivot 141. Thus, when the second bracket 120 rotates around the first pivot 141, the fastener 170 can move within the clearance channel 122, guiding the rotation of the second bracket 120. Furthermore, the cooperation between the clearance channel 122 and the fastener 170 also limits the rotation angle of the second bracket 120. It is understandable that the optical axis adjustment of the lens module is usually fine-tuned, meaning the rotation angle is often small; and the second bracket 120 can rotate after the locking component 150 is unlocked. Without a limit, the second bracket 120 might deviate excessively. Therefore, in this embodiment, the fastener 170 and the clearance channel 122 are used to constrain the rotation range of the second bracket 120 around the first rotating shaft 141, so as to avoid affecting the adjustment accuracy or causing unnecessary trouble due to excessive offset of the second bracket 120.

[0043] In practical use, multiple fasteners 170 are provided, each corresponding to a clearance channel 122 to improve the guiding effect. The portion of the fastener 170 that passes through the clearance channel 122 may also be fitted with a rolling element, allowing the rolling element to roll against the channel wall of the clearance channel 122 to reduce friction. The rolling element can be a ball, roller, or bearing, etc. The fastener 170 can be a screw.

[0044] Furthermore, the second bracket 120 is provided with an arc-shaped hole that extends through the first rotating shaft 141 along its axial direction, serving as a clearance channel 122. Alternatively, the second bracket 120 may be provided with an arc-shaped groove, as long as it can reduce the rotational interference of the second bracket 120 and guide and limit the rotation of the second bracket 120.

[0045] In some specific embodiments, the first rotating shaft 141 is located at one end of the second bracket 120 along the Y-axis, and the clearance channel 122 is located on one side of the first rotating shaft 141 along the Y-axis. Taking four clearance channels 122 as an example, two of the clearance channels 122 can be located on the same circumference surrounding the first rotating shaft 141, with the two circumferences arranged alternately from the inside to the outside and from small to large diameter, to ensure that the four fasteners 170 are distributed.

[0046] In some specific embodiments, the first rotating shaft 141 can be a pin, rotatably connected to the second bracket 120. The second bracket 120 is provided with a third rotating hole that mates with the first rotating shaft 141, and a bushing is fitted between the hole wall of the third rotating hole and the first rotating shaft 141 to reduce wear. Alternatively, the first rotating shaft 141 can be fixed to the second bracket 120 and rotatably connected to the adapter plate 160 and the first assembly part 111.

[0047] Please see Figure 2 and Figure 3 For example, the adapter plate 160 includes an assembly portion 161 and a locking portion 162. Multiple locking portions 162 are provided and spaced apart around the outer periphery of the assembly portion 161. The locking portions 162 protrude axially relative to the assembly portion 161 along the first rotating shaft 141. The assembly portion 161 locks with the first assembly portion 111, and the locking portions 162 are connected to the second bracket 120 via a locking assembly 150. In other words, the arrangement of the locking portions 162 and the assembly portion 161 separates the area on the adapter plate 160 used for locking with the first bracket 110 and the area on the adapter plate 160 used for locking with the second bracket 120, reducing assembly interference. Furthermore, since the locking portions 162 are located on the outer periphery of the assembly portion 161, they effectively add a lever arm, improving the connection reliability between the adapter plate 160 and the second bracket 120. The arrangement of multiple locking portions 162 further improves the connection reliability between the adapter plate 160 and the second bracket 120. Furthermore, because each locking part 162 protrudes relative to the assembly part 161 along the first rotating shaft 141, the assembly references of the adapter plate 160 and the second bracket 120, and the assembly references of the adapter plate 160 and the first bracket 110 are located in different planes. Therefore, when force is transmitted, it can generate component forces in other directions, thereby improving structural stability.

[0048] The first rotating shaft 141 is located on one side of the assembly portion 161 along the Y-axis. The aforementioned four fasteners 170 are located on the assembly portion 161. In some specific embodiments, each locking part 162 is L-shaped, with its vertical side perpendicular to the assembly portion 161 and connected to the edge of the assembly portion 161, and its horizontal side parallel to the assembly portion 161. Each locking part 162 is integrally formed with the assembly portion 161, for example, by bending sheet metal.

[0049] Furthermore, the shape of the second bracket 120 is adapted to the shape of the adapter plate 160, which facilitates the assembly of the second bracket 120 and the adapter plate 160.

[0050] Please see Figure 1 , Figure 2 and Figure 4In some embodiments, the locking assembly 150 includes a first locking member 151 for locking the second bracket 120 to the adapter plate 160. In actual use, multiple first locking members 151 are provided and spaced apart to improve the connection reliability between the second bracket 120 and the adapter plate 160. The multiple first locking members 151 are spaced apart from the aforementioned multiple fasteners 170 to reduce assembly interference.

[0051] Optionally, the second bracket 120 is provided with a first guide channel 123, which is arc-shaped and surrounds the first rotating shaft 141. A first locking member 151 passes through the first guide channel 123 and can move within it. That is, the cooperation between the first locking member 151 and the first guide channel 123 guides the rotation of the second bracket 120. Multiple first locking members 151 are provided, each corresponding to one first guide channel 123. The first locking member 151 passes through the first guide channel 123 and is threadedly connected to the adapter plate 160. When adjustment is needed, the first locking member 151 is loosened; after adjustment, it is tightened. The second bracket 120 is provided with a hole structure extending axially along the first rotating shaft 141, serving as the first guide channel 123.

[0052] In some specific embodiments, three locking portions 162 are provided. Two locking portions 162 are located on the side of the assembly portion 161 along the Y-axis direction near the first rotating shaft 141, and the two locking portions 162 are arranged opposite each other along the X-axis direction and extend backwards. Each locking portion 162 is provided with a corresponding first locking member 151. The third locking portion 162 is located on the side along the Y-axis direction away from the first rotating shaft 141, and the length of this locking portion 162 is adapted to the assembly portion 161, and it is provided with two first locking members 151 spaced apart along the X-axis direction.

[0053] Alternatively, the adapter plate 160 may have a first guide channel 123, through which the first locking member 151 passes and is threadedly connected to the second bracket 120. This is only necessary to satisfy the rotational adjustment of the second bracket 120 and the locking of the second bracket 120 to the adapter plate 160.

[0054] Please see Figures 1 to 5In some embodiments, the locking assembly 150 further includes a second locking member 152 for locking the second assembly portion 112 to the assembly frame 130. In actual use, multiple second locking members 152 are provided and spaced apart to improve the reliability of the connection between the second assembly portion 112 and the assembly frame 130. The assembly frame 130 has an assembly boss 131 protruding along the X-axis towards the first assembly portion 111. The second assembly portion 112 is pressed against the assembly boss 131 and secured by multiple second locking members 152. The second locking members 152 are screws.

[0055] Furthermore, the first bracket 110 also includes an extension 113, which connects to the first assembly portion 111 and the second assembly portion 112, and is angled to the first assembly portion 111. The extension 113 is connected to the assembly frame 130 via a second locking member 152. The extension 113 is located below the first assembly portion 111 along the Z-axis and connects to the intersection of the first assembly portion 111 and the second assembly portion 112. The extension 113 increases the assembly area between the first bracket 110 and the assembly frame 130, thereby improving connection reliability. Multiple reinforcing ribs are provided at intervals along the Y-axis at the angle between the extension 113 and the first assembly portion 111 to improve the structural strength at the angle.

[0056] Of course, the extension 113 may be connected only to the first assembly part 111, or it may be connected to the second assembly part 112, as long as it can maintain high structural strength, connection reliability, and stability.

[0057] Optionally, the second assembly part 112 is provided with a second guide channel 1121, which is arc-shaped and surrounds the second rotating shaft 142. A second locking member 152 passes through the second guide channel 1121 and can move within it. That is, the cooperation between the second locking member 152 and the second guide channel 1121 guides the rotation of the first bracket 110. Multiple second locking members 152 are provided, each corresponding to one second guide channel 1121. The second locking member 152 passes through the second guide channel 1121 and is threadedly connected to the assembly frame 130. When adjustment is required, the second locking member 152 is loosened; after adjustment, it is tightened. The first assembly part 111 and the extension part 113 of the first bracket 110 both have holes extending axially along the second rotating shaft 142, serving as the second guide channel 1121.

[0058] The engagement of the first locking member 151 with the first guide channel 123, and the engagement of the second locking member 152 with the second guide channel 1121, can also limit the rotation of the second bracket 120 and the first bracket 110, respectively. For details, refer to the aforementioned engagement of the fastener 170 with the clearance channel 122; further details will not be provided here.

[0059] like Figures 1 to 4 As shown, the first assembly part 111 has a first rotating hole 1110 for the second rotating shaft 142 to pass through, and the assembly frame 130 has a second rotating hole 132 for the second rotating shaft 142 to pass through. The diameter of the first rotating hole 1110 is larger than the diameter of the second rotating hole 132, and the assembly frame 130 protrudes along the X-axis on the side of the second rotating hole 132 away from the first assembly part 111 to increase the assembly area with the second rotating shaft 142. The second rotating shaft 142 is a stepped shaft, including a large-diameter section and a small-diameter section. The large-diameter section mates with the first rotating hole 1110, and the small-diameter section mates with the second rotating hole 132. An assembly end face is provided between the large-diameter section and the small-diameter section. The assembly end face is pressed against the assembly frame 130, and the second rotating shaft 142 is fastened to the assembly frame 130 using screws. A bushing 143 is provided in the first rotating hole 1110, and the bushing 143 is fitted onto the first rotating shaft 141 to reduce wear.

[0060] Alternatively, the assembly frame 130 may be provided with a second guide channel 1121. The second locking member 152 passes through the second guide channel 1121 and is threadedly connected to the first bracket 110. It is only necessary to satisfy the rotational adjustment of the first bracket 110 and the locking of the first bracket 110 to the assembly frame 130.

[0061] Please see Figure 1 , Figure 4 , Figure 6 and Figure 7 Another embodiment of this application provides a camera device, including a lens module 200 and the aforementioned optical axis adjustment mechanism 100. The lens module 200 includes a lens body 210 and a lens holder 220 connected to the lens body 210. The lens holder 220 is connected to the second bracket 120 in the optical axis adjustment mechanism 100. In actual use, the lens holder 220 is fastened to the second bracket 120 using multiple lens screws 230. The lens screws 230 can be threaded through corresponding connecting holes 121 to the lens holder 220. The connecting holes 121 are countersunk holes, and the lens screws 230 are countersunk screws to reduce assembly interference between the second bracket 120 and the adapter plate 160. In this embodiment, the camera device can achieve adjustment of the pitch and yaw angles of the lens module 200 by utilizing the cooperation of the first assembly part 111 and the second bracket 120, and the cooperation of the second assembly part 112 and the assembly frame 130.

[0062] like Figure 2 , Figure 6 and Figure 7 As shown, in actual use, the second bracket 120 is provided with connection holes 121 for connecting the lens module 200, and the connection holes 121 are arranged spaced apart from the locking component 150. This arrangement, while ensuring the lens module 200 is assembled relative to the second bracket 120, reduces interference between the lens module 200 and the pose adjustment (i.e., the aforementioned yaw angle adjustment and pitch angle adjustment). Multiple connection holes 121 are provided and arranged at intervals to improve connection reliability.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An optical axis adjustment mechanism, characterized in that, include: The first bracket (110) includes a first assembly part (111) and a second assembly part (112), which are connected and set at an angle; The adapter plate (160) is locked to the first assembly part (111); A second bracket (120) is connected to the adapter plate (160) and correspondingly provided with a first rotating shaft (141). The second bracket (120) is used to connect the lens module (200); and An assembly frame (130) is connected to the second assembly part (112) and is provided with a second rotating shaft (142) thereon. The second rotating shaft (142) is set at an angle to the first rotating shaft (141). The first bracket (110) is rotatable relative to the assembly frame (130) about the second rotating shaft (142), and the second bracket (120) is rotatable relative to the adapter plate (160) about the first rotating shaft (141); the optical axis adjustment mechanism (100) further includes: A locking assembly (150) is used to lock the second bracket (120) to the adapter plate (160) and to lock the first bracket (110) to the assembly frame (130).

2. The optical axis adjustment mechanism according to claim 1, characterized in that, The first assembly part (111) and the second assembly part (112) are arranged vertically, and / or the first rotating shaft (141) and the second rotating shaft (142) are arranged vertically.

3. The optical axis adjustment mechanism according to claim 1, characterized in that, The optical axis adjustment mechanism (100) further includes a fastener (170) connected to the adapter plate (160) and the first assembly part (111); The second bracket (120) is provided with a clearance channel (122) for the fastener (170) to pass through, and the fastener (170) is movable within the clearance channel (122).

4. The optical axis adjustment mechanism according to claim 3, characterized in that, The avoidance channel (122) is arranged in an arc shape around the first rotating shaft (141).

5. The optical axis adjustment mechanism according to claim 3, characterized in that, The adapter plate (160) includes an assembly part (161) and a locking part (162). The locking part (162) is provided in a plurality of spaced areas surrounding the outer periphery of the assembly part (161). The locking part (162) protrudes axially relative to the assembly part (161) along the first rotating shaft (141). The assembly part (161) is locked to the first assembly part (111). The locking part (162) is connected to the second bracket (120) through the locking assembly (150).

6. The optical axis adjustment mechanism according to claim 5, characterized in that, The shape of the second bracket (120) is adapted to the shape of the adapter plate (160).

7. The optical axis adjustment mechanism according to claim 1, characterized in that, The locking assembly (150) includes a first locking member (151) for locking the second bracket (120) to the adapter plate (160); The locking assembly (150) includes a second locking member (152) for locking the second assembly part (112) to the assembly frame (130).

8. The optical axis adjustment mechanism according to claim 7, characterized in that, The second bracket (120) or the adapter plate (160) is provided with a first guide channel (123), the first guide channel (123) being arc-shaped around the first rotating shaft (141), the first locking member (151) passing through the first guide channel (123) and being able to move within the first guide channel (123); and / or, The assembly frame (130) or the second assembly part (112) is provided with a second guide channel (1121), the second guide channel (1121) is arranged in an arc around the second rotating shaft (142), and the second locking member (152) passes through the second guide channel (1121) and can move within the second guide channel (1121).

9. The optical axis adjustment mechanism according to claim 7, characterized in that, The first bracket (110) further includes an extension (113), which is connected to the first assembly part (111) and / or the second assembly part (112) and is angled to the first assembly part (111). The extension (113) is connected to the assembly frame (130) via the second locking member (152).

10. A camera device, characterized in that, Includes a lens module (200) and an optical axis adjustment mechanism as described in any one of claims 1 to 9; The lens module (200) includes a lens body (210) and a lens mount (220) connected to the lens body (210). The lens mount (220) is connected to the second bracket (120) in the optical axis adjustment mechanism (100).

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