A calibration bracket and ADAS calibration equipment

Abstract

This invention provides a calibration bracket and ADAS calibration equipment. The calibration bracket includes: a column with a third connecting structure for connection to a first connecting structure; a crossbeam disposed on the column, the length direction of the crossbeam intersecting the length direction of the column; a slider slidably mounted on the crossbeam along its length direction, the slider having a fourth connecting structure for connection to a second connecting structure; and a horizontal adjustment structure including a bubble level module and a limiting structure. The bubble level module is disposed on the column, and the limiting structure is disposed on the column, and / or the crossbeam, and / or the slider, the limiting structure being used to limit the horizontal tilt of the target relative to the column. Multiple connection points are provided between the calibration bracket and the target, improving the connection strength between the target and the calibration bracket. During the horizontal tilt adjustment process, the horizontal tilt of the calibration bracket can be directly observed through the bubble level module, resulting in high accuracy in adjusting the overall horizontal tilt of the calibration bracket and the target.

Description

Technical Field

[0001] This utility model relates to the field of ADAS calibration equipment technology, and in particular to a calibration bracket and ADAS calibration equipment. Background Technology

[0002] Advanced Driving Assistance Systems (ADAS) utilize various sensors installed in the vehicle to continuously sense the surrounding environment while driving, collect data, identify, detect, and track static and dynamic objects, and combine this data with navigation map data for system calculations and analysis. This allows the driver to anticipate potential dangers, effectively increasing driving comfort and safety. During vehicle maintenance and repair, it is often necessary to calibrate and recalibrate the sensors of ADAS to ensure its accuracy.

[0003] In related technologies, the LAM01-29 target is often used during the calibration of ADAS systems. The process involves first setting the target holder at a predetermined position near the vehicle, then placing the LAM01-29 target on the holder, and finally making minor horizontal adjustments to the target to begin calibration. However, the target is only fixed to the crossbeam of the target holder via a connecting structure, which is not secure. Furthermore, the overall horizontal tilt of the target holder and the target is difficult to observe, leading to significant errors in horizontal tilt adjustment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a calibration bracket and ADAS calibration equipment, which aims to solve the problems of unstable fixation between the target bracket and the target and the difficulty in adjusting the horizontal tilt in the related technology.

[0005] To solve the above-mentioned technical problems, the first aspect of this utility model provides a calibration bracket for fixing a target, wherein a first connecting structure and a second connecting structure are provided on one side of the target, and the calibration bracket includes:

[0006] The column is provided with a third connecting structure for connecting to the first connecting structure;

[0007] A crossbeam is provided on the column, and the length direction of the crossbeam intersects the length direction of the column;

[0008] A slider is slidably mounted on the crossbeam along its length, and the slider is provided with a fourth connecting structure for connecting with the second connecting structure; and,

[0009] The horizontal adjustment structure includes a horizontal bubble module and a direction limiting structure. The horizontal bubble module is disposed on the column, and the direction limiting structure is disposed on the column, and / or the crossbeam, and / or the slider. The direction limiting structure is used to limit the direction of the target relative to the column when the target is connected to the calibration bracket, so that the horizontal inclination of the target relative to the column is within a preset range.

[0010] Optionally, the directional limiting structure includes a fixing member, the two ends of which are respectively connected to the crossbeam and the column in the length direction, and the length direction of the fixing member is parallel to the length direction of the column, while the length direction of the crossbeam is perpendicular to the length direction of the column; and / or,

[0011] The slider is provided with a mounting hole, and the crossbeam is slidably assembled within the mounting hole; the limiting structure further includes two first abutment portions disposed on the inner wall of the mounting hole, each of the first abutment portions contacting both sides of the crossbeam in the thickness direction of the column, and the length of each of the two first abutment portions extending along the length direction of the column; and / or,

[0012] The directional limiting structure further includes a second abutment portion disposed on the fourth connecting structure. The second abutment portion is used to contact the side of the target near the calibration bracket, and the length of the second abutment portion extends along the length direction of the column.

[0013] Optionally, the first connecting structure is engaged with the third connecting structure, and the second connecting structure is engaged with the fourth connecting structure.

[0014] Optionally, the third connecting structure includes a snap-fit ​​member disposed on the column, the snap-fit ​​member having a first snap-fit ​​groove, and the first connecting structure includes a first snap-fit ​​part disposed on the target, the first snap-fit ​​part engaging with the first snap-fit ​​groove.

[0015] The fourth connecting structure includes a second slot disposed on the slider, and the second connecting structure includes a second engaging portion disposed on the target, wherein the second engaging portion engages with the second slot.

[0016] Optionally, the first card slot and the second card slot are located on the same plane, and the plane where the first card slot is located is parallel to the length direction of the column.

[0017] Optionally, two sliders are provided, and each slider is provided with the second slot;

[0018] The first slot and the second slot are distributed at intervals along the length of the column, and the first slot is located between the two sliders.

[0019] Optionally, the first slot is annular, and the bottom wall of the first slot can support the target in the length direction of the column;

[0020] The second slot extends along the length of the column, and the second slot passes through both ends of the slider in the length direction of the column.

[0021] Optionally, the opening of the first card slot is provided with a first transition surface, and the opening of the second card slot is provided with a second transition surface.

[0022] Optionally, two columns are provided, and the two columns are connected by a support beam, with the horizontal bubble module disposed on the support beam;

[0023] Two third connecting structures are provided, and the two third connecting structures are distributed at intervals along the length direction of the support beam.

[0024] The second aspect of this utility model provides an ADAS calibration device, including a calibration bracket and a target as described in any one of the above descriptions, wherein the first connecting structure is connected to the third connecting structure, and the second connecting structure is connected to the fourth connecting structure.

[0025] Compared with related technologies, the calibration bracket and ADAS calibration equipment of this utility model have the following advantages: By setting a third connecting structure on the crossbeam to connect with the first connecting structure on the target, and setting a fourth connecting structure on the slider to connect with the second connecting structure on the target, multiple connection points are provided between the calibration bracket and the target, improving the connection strength between the target and the calibration bracket. The directional limiting structure can limit the target and the column to be basically parallel, so the horizontal tilt of the target can be adjusted by adjusting the horizontal tilt of the calibration bracket; moreover, the horizontal tilt of the calibration bracket can be directly observed through the level bubble module during the horizontal tilt adjustment process, resulting in high accuracy in adjusting the overall horizontal tilt of the calibration bracket and the target. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an assembly diagram of the calibration bracket and target provided in this embodiment of the utility model;

[0028] Figure 2 yes Figure 1Enlarged view of detail A in the middle;

[0029] Figure 3 yes Figure 1 A magnified view of detail B in the middle;

[0030] Figure 4 This is a schematic diagram of the calibration bracket provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the slider provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the snap-fit ​​component provided in an embodiment of the present invention.

[0033] In the accompanying drawings, the reference numerals represent: 1. Column; 2. Horizontal beam; 3. Slider; 31. Mounting hole; 32. First abutment part; 33. Second abutment part; 34. Second slot; 35. Second transition surface; 4. Horizontal bubble module; 5. Fixing component; 6. Snap-fit ​​component; 61. First slot; 62. First transition surface; 7. Support beam; 8. Base; 9. Adjusting component; 10. Locking component; 20. Limiting sleeve; 30. Target; 301. First snap-fit ​​part; 302. Second snap-fit ​​part. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0036] 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 one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0037] Example:

[0038] Please see Figure 1 This utility model provides an ADAS calibration device, including a calibration bracket and a target 30, with the target 30 mounted on one side of the calibration bracket. In some examples, the target 30 and the calibration bracket are detachably connected.

[0039] Please see Figures 1 to 6 The target 30 has a first connecting structure and a second connecting structure on one side. The calibration support includes a column 1, a crossbeam 2, a slider 3, and a horizontal adjustment structure. The column 1 has a third connecting structure for connecting with the first connecting structure. The crossbeam 2 is set on the column 1, and the length direction of the crossbeam 2 intersects with the length direction of the column 1. The slider 3 is slidably mounted on the crossbeam 2 along the length direction of the crossbeam 2, and the slider 3 has a fourth connecting structure for connecting with the second connecting structure. The horizontal adjustment structure includes a horizontal bubble module 4 and a direction limiting structure. The horizontal bubble module 4 is set on the column 1, and the direction limiting structure is set on the column 1, and / or the crossbeam 2, and / or the slider 3. The direction limiting structure is used to limit the direction of the target 30 relative to the column 1 when the target 30 is connected to the calibration support, so that the horizontal tilt of the target 30 relative to the column 1 is within a preset range. Thus, in actual use, the horizontal tilt of the target 30 can be adjusted by observing the horizontal tilt of the horizontal bubble module 4 on the column 1, and the target 30 can be used to calibrate the object to be calibrated.

[0040] It is understood that the horizontal direction mentioned in this utility model specifically refers to the direction parallel to the working surface or ground when the calibration bracket is set on the working surface or ground during use. The horizontal inclination of the target 30 relative to the column 1 specifically refers to the angle between the width direction of the target 30 and the width direction of the column 1 during use.

[0041] In some embodiments, the preset range is preferably 0, that is, the limiting structure is preferably used to limit the target 30 to be parallel to the column 1 in the horizontal direction. In actual use, the horizontal tilt of the target 30 can be directly obtained by observing the horizontal tilt of the horizontal bubble module 4 on the column 1.

[0042] Of course, in some other embodiments, the preset range can also be ±1°. This not only avoids the influence of production errors and facilitates mass production, but also ensures that the horizontal tilt of both objects is within a controllable range (e.g., the sensor of the object to be calibrated can be error compensated), thus not affecting the subsequent calibration accuracy. Alternatively, in some other embodiments, the calibration bracket can be marked with the horizontal tilt of the target 30 relative to the column 1 to avoid the influence of tilt errors. For example, if the target 30 is tilted 1° relative to the column 1, the "1°" marking can be placed near the level bubble module 4. In actual use, adjusting the level bubble module 4 to a horizontal tilt of "-1°" will make the horizontal tilt of the target 30 relative to the horizontal plane 0.

[0043] By setting a third connecting structure on the crossbeam 2 to connect with the first connecting structure on the target 30, and setting a fourth connecting structure on the slider 3 to connect with the second connecting structure on the target 30, multiple connection points are provided between the calibration bracket and the target 30, improving the connection strength between the target 30 and the calibration bracket. The directional limiting structure can limit the target 30 to be set parallel to the column 1, so the horizontal tilt of the target 30 can be adjusted by adjusting the horizontal tilt of the calibration bracket; moreover, the horizontal tilt of the calibration bracket can be directly observed through the level bubble module 4 during the horizontal tilt adjustment process, so that the overall horizontal tilt adjustment of the calibration bracket and the target 30 is highly accurate, thereby improving the calibration accuracy.

[0044] In some embodiments, the level bubble module 4 is an instrument component for measuring the level of an object. Specifically, it can be a closed arc-shaped container filled with a liquid that has good fluidity and strong stability, and the liquid is not completely filled, leaving an air bubble.

[0045] Please see Figure 1 and Figure 4 In some embodiments, the directional limiting structure includes a fixing member 5, with its two ends connected to the crossbeam 2 and the column 1 respectively along its length. The length direction of the fixing member 5 is parallel to the length direction of the column 1, while the length direction of the crossbeam 2 is perpendicular to the length direction of the column 1. This ensures that the plane containing the crossbeam 2 is parallel to the length direction of the column 1, which helps to ensure the vertical distribution of the target 30 when it is fixed on the crossbeam 2 and the column 1, i.e., ensuring that the target 30 is parallel to the length direction of the column 1 after being fixed to one side of the calibration bracket. The parallelism and perpendicularity are preferred embodiments, and in practical applications, the angular error can be ±1°.

[0046] In some embodiments, the crossbeam 2 is disposed on one end of the column 1. Both the crossbeam 2 and the column 1 are provided with mounting holes 31. The mounting holes 31 on the crossbeam 2 are through holes, and the mounting holes 31 on the column 1 are threaded holes. The fastener 5 can be a screw. The screw is assembled on the crossbeam 2 through the through hole on the crossbeam 2 and connected to the column 1 through the threaded hole on the column 1, so that the fixing method between the crossbeam 2 and the column 1 is a detachable connection, which facilitates the disassembly and assembly of the calibration bracket.

[0047] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 In some embodiments, the slider 3 is provided with a mounting hole 31, and the crossbeam 2 is slidably fitted into the mounting hole 31, that is, the slider 3 is sleeved on the outside of the crossbeam 2, so that the crossbeam 2 can guide the sliding of the slider 3 and improve the smoothness of the sliding of the slider 3. The directional limiting structure also includes a first abutment part 32 provided on the inner wall of the mounting hole 31. There are two first abutment parts 32, and the two first abutment parts 32 contact the two sides of the crossbeam 2 in the thickness direction of the column 1. The length of the two first abutment parts 32 extends along the length direction of the column 1. In this way, the plane where the slider 3 is located can be parallel to the length direction of the column 1, which is beneficial to ensure that the target 30 is vertically distributed when it is fixed on the slider 3 and the column 1. That is, after the target 30 is fixed on one side of the calibration bracket, it is parallel to the length direction of the column 1, and the target 30 is perpendicular to the horizontal plane, ensuring the calibration effect. Among them, the parallelism and perpendicularity are preferred embodiments, and the angle error can be ±1° in actual application.

[0048] Furthermore, in some embodiments, two sliders 3 can be sleeved on the outside of the crossbeam 2, and the target 30 can be provided with two first connecting structures on both sides. Due to the action of the fixing member 5 and the first abutting part 32, the crossbeam 2 and the column 1 are basically parallel in the horizontal direction (the error can be ±1°), so that the line connecting the two sliders 3 is also basically parallel in the horizontal direction to the column 1. Therefore, when the target 30 is subsequently connected to a slider 3 on both sides, the target 30 is also limited to be basically parallel in the horizontal direction to the column 1.

[0049] Please see Figure 2 and Figure 5 In some embodiments, the directional limiting structure further includes a second abutment 33 disposed on the fourth connecting structure. The second abutment 33 is used to contact the side of the target 30 near the calibration bracket, and the length of the second abutment 33 extends along the length direction of the column 1. Thus, the second abutment 33 ensures that the target 30, after being fixed to one side of the calibration bracket, is parallel to the length direction of the column 1. Parallelism and perpendicularity are preferred embodiments, and in practical applications, the angular error can be ±1°.

[0050] It should be noted that, compared to a single directional limiting component, the arrangement of multiple directional limiting components in the directional limiting structure, such as the fixing part 5, the first abutment part 32, the slider 3, and the second abutment part 33, significantly improves the horizontal accuracy of the target 30 by cooperating with it to limit its orientation. For example, during production testing, the horizontal error of the target 30 is ±1° when a single directional limiting component is used, while the horizontal error of the target 30 is much less than ±0.1° when multiple directional limiting components cooperate to limit its orientation.

[0051] In some embodiments, the first connecting structure and the third connecting structure engage in a snap-fit ​​configuration, and the second connecting structure and the fourth connecting structure engage in a snap-fit ​​configuration. This snap-fit ​​fixing method provides a secure hold and also allows for a detachable connection between the calibration bracket and the target 30.

[0052] In some embodiments, the connection between the first and third connecting structures, as well as between the second and fourth connecting structures, can be a magnetic connection, a snap-fit ​​connection, an adhesive connection, etc.

[0053] Please see Figure 1 , Figure 3 , Figure 4 and Figure 6 In some embodiments, the third connecting structure includes a snap-fit ​​member 6 disposed on the column 1, the snap-fit ​​member 6 having a first snap-fit ​​groove 61, and the first connecting structure including a first snap-fit ​​portion 301 disposed on the target 30, the first snap-fit ​​portion 301 engaging with the first snap-fit ​​groove 61; the fourth connecting structure includes a second snap-fit ​​groove 34 disposed on the slider 3, and the second connecting structure including a second snap-fit ​​portion 302 disposed on the target 30, the second snap-fit ​​portion 302 engaging with the second snap-fit ​​groove 34. Thus, the snap-fit ​​portion and the snap-fit ​​groove engage to achieve a snap-fit ​​connection between the target 30 and the calibration bracket.

[0054] In some embodiments, a snap-fit ​​portion may be provided on the snap-fit ​​member 6 and the slider 3, and a slot may be provided on the target 30, with the snap-fit ​​portion engaging with the slot.

[0055] Please see Figure 1 and Figure 4 In some embodiments, the first slot 61 and the second slot 34 are on the same plane (with an error of ±9mm), and the plane containing the first slot 61 is parallel to the length direction of the column 1. This ensures that when the first engaging part 301 is engaged in the first slot 61 and the second engaging part 302 is engaged in the second slot 34, the target 30 is parallel to the length direction of the column 1, so that the target 30 is vertically distributed when the calibration bracket is horizontally placed, i.e., the target 30 is perpendicular to the horizontal plane, ensuring the calibration effect. The parallelism and perpendicularity are preferred embodiments; in practical applications, the angular error can be ±1°.

[0056] Please see Figure 1 and Figure 4 In some embodiments, two sliders 3 are provided, each with a second slot 34. The first slot 61 and the second slot 34 are spaced apart along the length of the column 1, with the first slot 61 positioned between the two sliders 3. Thus, the second slots 34 on the two sliders 3 cooperate with the two second engaging portions 302 on the target 30, clamping and fixing the target 30 onto the crossbeam 2. This not only further improves the stability of the target 30 on the calibration bracket but also limits the horizontal inclination of the target 30 relative to the column 1 through the groove walls of the second slots 34. Furthermore, the first slot 61 positioned between the two sliders 3 creates a triangle at the three connection points between the target 30 and the calibration bracket, which further enhances the stability of the target 30 on the calibration bracket.

[0057] Please see Figure 2 and Figure 5 In some embodiments, two sliders 3 are located at both ends of the crossbeam 2 along its length, and the column 1 is located in the middle of the crossbeam 2. Each slider 3 is provided with two second slots 34, which are located on both sides of the slider 3 along the length of the crossbeam 2. The two second slots 34 on the slider 3 can engage with different second engaging parts 302 on the same target 30, thereby improving the adaptability of the calibration bracket to the second engaging parts 302 of different specifications on the target 30.

[0058] Please see Figure 2 and Figure 5 In some embodiments, the calibration bracket further includes a locking member 10. The slider 3 has a connecting hole communicating with the mounting hole 31, and the locking member 10 is threaded into the connecting hole. The locking member 10 can be a screw, and the connecting hole can be a threaded hole. When the screw is tightened, the locking member 10 can extend into the mounting hole 31 and abut against the crossbeam 2, thereby locking and fixing the slider 3 to the crossbeam 2.

[0059] Please see Figure 1 , Figure 2 and Figure 4 In some embodiments, a limiting sleeve 20 is provided at the end of the crossbeam 2, which can prevent the slider 3 from sliding off the crossbeam 2.

[0060] Please see Figure 3 and Figure 6In some embodiments, the first slot 61 is annular, and its bottom wall can support the target 30 along the length of the column 1; the second slot 34 extends along the length of the column 1 and passes through both ends of the slider 3 along the length of the column 1. Thus, the target 30 can be supported by the snap-fit ​​member 6, improving the stability of the target 30 on the calibration bracket. Furthermore, the second slot 34 is a through slot, facilitating the insertion of the second snap-fit ​​member 302, thereby improving the ease of fixing the target 30 on the calibration bracket.

[0061] Please see Figure 5 and Figure 6 In some embodiments, the opening of the first slot 61 is provided with a first transition surface 62, and the opening of the second slot 34 is provided with a second transition surface 35. The first transition surface 62 and the second transition surface 35 can be arc surfaces or inclined surfaces, thereby guiding the first snap-fit ​​part 301 into the first slot 61 and the second snap-fit ​​part 302 into the second slot 34, reducing the snap-fit ​​difficulty.

[0062] Please see Figure 1 and Figure 4 In some embodiments, two columns 1 are provided, connected by a support beam 7, and the horizontal bubble module 4 is mounted on the support beam 7; two third connecting structures are provided, spaced apart along the length of the support beam 7. Thus, the two columns 1 can enhance the support capacity for the crossbeam 2, and the horizontal bubble module 4 is mounted on the support beam 7, facilitating its installation. At least two snap-fit ​​components 6 are provided, which not only improves the support capacity of the snap-fit ​​components 6 for the target 30, but also enhances the connection strength between the calibration bracket and the target 30.

[0063] In some embodiments, the snap-fit ​​member 6 can be a cylinder, and the first slot 61 is formed on the peripheral surface of the cylinder.

[0064] Furthermore, at least two snap-fit ​​pieces 6 can be mounted on the support beam 7 via plug-in connectors. During production, at least two first plug-in holes can be spaced apart approximately along the length of the support beam 7, with a second plug-in hole at the center of each snap-fit ​​piece 6. The center of each snap-fit ​​piece 6 is used as the center of a first slot 61, and the first slot 61 is formed along the circumferential surface of the snap-fit ​​piece 6. This ensures that the line connecting the centers of the multiple first slots 61 is substantially parallel to the support beam 7. Therefore, when the target 30 is mounted on the snap-fit ​​piece 6, the target 30 is positioned substantially parallel to the support beam 7 in the horizontal direction. The horizontal parallelism of the target 30 to the support beam 7 is a preferred embodiment; in practical applications, the angular error can be ±1°.

[0065] Please see Figure 1 and Figure 4In some embodiments, the calibration bracket further includes a base 8 and an adjusting member 9. The end of the column 1 away from the crossbeam 2 is disposed on the base 8, and the adjusting member 9 is disposed on the base 8. Multiple adjusting members 9 are provided, and the adjusting members 9 are used to adjust the horizontal tilt of the calibration bracket relative to the working surface. The adjusting member 9 can be a foot cup, which can adjust the horizontal tilt of the calibration bracket relative to the working surface, thereby adjusting the horizontal tilt of the mounted target 30 during calibration to calibrate the ADAS sensor.

[0066] Specifically, the base 8 can be triangular, or a heart-shaped, arc-triangular, or similar triangular plate. Each of the two adjacent corners of the base 8 can be equipped with an adjustable foot cup, and the other end can be equipped with a non-adjustable foot cup, with three adjustable foot cups arranged opposite each other. This way, only two adjustable foot cups need to be adjusted, making the horizontal adjustment more efficient. Moreover, since one end is equipped with a non-adjustable foot cup, the height is fixed, avoiding accidental adjustment of the height of the calibration bracket during the horizontal adjustment process, effectively ensuring that the calibration height of the target 30 is fixed.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 calibration bracket for fixing a target, wherein a first connecting structure and a second connecting structure are provided on one side of the target, characterized in that, The calibration bracket includes: The column is provided with a third connecting structure for connecting to the first connecting structure; A crossbeam is provided on the column, and the length direction of the crossbeam intersects the length direction of the column; A slider is slidably mounted on the crossbeam along its length, and the slider is provided with a fourth connecting structure for connecting with the second connecting structure; and, The horizontal adjustment structure includes a horizontal bubble module and a direction limiting structure. The horizontal bubble module is disposed on the column, and the direction limiting structure is disposed on the column, and / or the crossbeam, and / or the slider. The direction limiting structure is used to limit the direction of the target relative to the column when the target is connected to the calibration bracket, so that the horizontal inclination of the target relative to the column is within a preset range.

2. The calibration bracket according to claim 1, characterized in that, The directional limiting structure includes a fixing member, the two ends of which are respectively connected to the crossbeam and the column in the length direction. The length direction of the fixing member is parallel to the length direction of the column, and the length direction of the crossbeam is perpendicular to the length direction of the column; and / or, The slider is provided with a mounting hole, and the crossbeam is slidably assembled within the mounting hole; the limiting structure further includes two first abutment portions disposed on the inner wall of the mounting hole, each of the first abutment portions contacting both sides of the crossbeam in the thickness direction of the column, and the length of each of the two first abutment portions extending along the length direction of the column; and / or, The directional limiting structure further includes a second abutment portion disposed on the fourth connecting structure. The second abutment portion is used to contact the side of the target near the calibration bracket, and the length of the second abutment portion extends along the length direction of the column.

3. The calibration bracket according to claim 1, characterized in that, The first connecting structure engages with the third connecting structure, and the second connecting structure engages with the fourth connecting structure.

4. The calibration bracket according to claim 3, characterized in that, The third connecting structure includes a snap-fit ​​component disposed on the column, the snap-fit ​​component having a first snap-fit ​​groove, and the first connecting structure includes a first snap-fit ​​part disposed on the target, the first snap-fit ​​part engaging with the first snap-fit ​​groove. The fourth connecting structure includes a second slot disposed on the slider, and the second connecting structure includes a second engaging portion disposed on the target, wherein the second engaging portion engages with the second slot.

5. The calibration bracket according to claim 4, characterized in that, The first card slot and the second card slot are on the same plane, and the plane where the first card slot is located is parallel to the length direction of the column.

6. The calibration bracket according to claim 4, characterized in that, Two sliders are provided, and the second slot is provided on both sliders; The first slot and the second slot are distributed at intervals along the length of the column, and the first slot is located between the two sliders.

7. The calibration bracket according to claim 6, characterized in that, The first slot is annular, and the bottom wall of the first slot can support the target along the length of the column; The second slot extends along the length of the column, and the second slot passes through both ends of the slider along the length of the column.

8. The calibration bracket according to claim 4, characterized in that, The opening of the first card slot is provided with a first transition surface, and the opening of the second card slot is provided with a second transition surface.

9. The calibration bracket according to claim 1, characterized in that, Two columns are provided, and the two columns are connected by a support beam. The horizontal bubble module is set on the support beam. Two third connecting structures are provided, and the two third connecting structures are distributed at intervals along the length direction of the support beam.

10. An ADAS calibration device, characterized in that, Includes the calibration bracket and target as described in any one of claims 1-9, wherein the first connecting structure is connected to the third connecting structure, and the second connecting structure is connected to the fourth connecting structure.

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