An adjustable limit device and an automotive headlight detection device

Abstract

This utility model relates to the field of automotive headlight testing technology, and more specifically, to an adjustable limiting device and an automotive headlight testing device. It includes a base and a whiteboard, with the whiteboard connected to the base. It also includes a limiting component and a mounting component, with the limiting component connected to the base and / or the whiteboard. The mounting component is slidably connected to the whiteboard in the same vertical plane via the limiting component. This utility model overcomes the shortcomings of existing technologies where moving a handheld illuminance meter easily causes changes in the distance between the illuminance meter and the whiteboard, leading to inaccurate measurement results. By setting up a mounting component and a limiting component, the mounting component is slidably connected to the whiteboard in the same vertical plane via the limiting component. After the illuminance meter is installed on the mounting component, moving the mounting component moves the illuminance meter, maintaining a constant distance between the illuminance meter and the whiteboard. This avoids the influence of changes in the distance between the illuminance meter and the whiteboard on the measurement results, thereby eliminating measurement errors and improving the accuracy of the measurement results.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile headlamp detection, and more specifically, to an adjustable limiting device and an automobile headlamp detection device. Background Art

[0002] As a regulatory sampling inspection item, automobile manufacturers need to sample and detect the vehicles produced by their own enterprises at the specified frequency every year. During the detection process, the vehicle needs to be parked at a designated position, and the left / right front headlamps of the automobile are shielded in sequence, and the light distribution of the headlamp on the whiteboard is measured to determine whether the headlamp is qualified.

[0003] When detecting the headlamp, a light-shielding device is used to shield one side of the headlamp so that the light of the headlamp to be detected hits the whiteboard; then the detector holds the illuminometer and moves it in front of the graduated whiteboard; after finding the point with the maximum light intensity on the whiteboard, record the position coordinates of this point. If the position and numerical value of the maximum light intensity point are within a specific range, it means that the headlamp is qualified.

[0004] However, manual operation cannot ensure that the photosensitive surface of the illuminometer is parallel to the whiteboard, and it is difficult to ensure that the distance between the illuminometer and the whiteboard is the same each time during manual movement, which easily leads to errors in the coordinates of the maximum light intensity point measured and inaccurate measurement results. Summary of the Utility Model

[0005] Aiming at the problem in the above-mentioned prior art that the distance between the hand-held illuminometer and the whiteboard is likely to change during movement, resulting in inaccurate measurement results, the utility model provides an adjustable limiting device and an automobile headlamp detection device, which can ensure that the illuminometer and the whiteboard maintain a constant distance, reduce measurement errors, and improve the accuracy of measurement results.

[0006] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0007] An adjustable limiting device includes a base and a whiteboard, the whiteboard is connected to the base, and further includes a limiting component and a mounting component. The limiting component is connected to the base and / or the whiteboard; the mounting component is used for mounting the illuminometer, and the mounting component is slidably connected to the whiteboard in the same vertical plane through the limiting component.

[0008] In use, the above technical solution involves mounting the illuminance meter on the mounting assembly. The operator can manually slide the mounting assembly, thereby moving the illuminance meter. Because the mounting assembly and the limiting assembly are slidably connected on the same vertical plane, the mounting assembly maintains a constant distance from the whiteboard during sliding, thus ensuring a constant distance between the illuminance meter and the whiteboard. This avoids the influence of changes in the distance between the illuminance meter and the whiteboard on the measurement results, thereby eliminating measurement errors and improving the accuracy of the measurement results.

[0009] Preferably, the limiting component includes a longitudinal guide rod, a first transverse guide rod, and a second transverse guide rod. The top and bottom ends of the longitudinal guide rod are slidably connected to the first transverse guide rod and the second transverse guide rod, respectively, in the horizontal direction. The mounting component is slidably connected to the longitudinal guide rod in the vertical direction. During operation, the mounting component can slide up and down along the longitudinal guide rod, while the longitudinal guide rod can slide horizontally along the first and second transverse guide rods, thereby driving the mounting component to slide horizontally. This bidirectional sliding design allows for detection at any position on the whiteboard and also facilitates quick adjustment of the illuminance meter to any coordinate point on the whiteboard.

[0010] Preferably, the limiting component further includes a first transverse slider group and a second transverse slider group; the top end of the longitudinal guide rod is slidably connected to the first transverse guide rod via the first transverse slider group, and the bottom end of the longitudinal guide rod is slidably connected to the second transverse guide rod via the second transverse slider group; the mounting component is connected to a lifting slider, and the mounting component is slidably connected to the longitudinal guide rod via the lifting slider; the first transverse slider group is provided with a first threaded through hole, and a first locking bolt is threadedly connected to the first threaded through hole, the first locking bolt being rotatable to abut against the first transverse guide rod; the second transverse slider group is provided with a second threaded through hole, and a second locking bolt is threadedly connected to the second threaded through hole, the second locking bolt being rotatable to abut against the second transverse guide rod; the lifting slider is provided with a third threaded through hole, and a third locking bolt is threadedly connected to the third threaded through hole, the third locking bolt being rotatable to abut against the longitudinal guide rod. It can be understood that by tightening the first locking bolt to abut against the first transverse guide rod, the first transverse slider group can be locked onto the first transverse guide rod. The operation and function of the second and third locking bolts are similar to those of the first locking bolt. Each slider is equipped with a corresponding locking bolt, which locks the mounting component in the corresponding position when the point of maximum light intensity is determined, thus confirming the coordinates of the point of maximum light intensity on the whiteboard.

[0011] Preferably, the first locking bolt has a first tightening handle at the end away from the first transverse guide rod, and the first tightening handle is located outside the first threaded through hole; the second locking bolt has a second tightening handle at the end away from the second transverse guide rod, and the second tightening handle is located outside the second threaded through hole; the third locking bolt has a third tightening handle at the end away from the longitudinal guide rod, and the third tightening handle is located outside the third threaded through hole. The first tightening handle facilitates the operator in tightening the first locking bolt. The functions of the second and third tightening handles are similar to those of the first tightening handle, and therefore will not be described further.

[0012] Preferably, the system also includes several magnetic marker blocks, all of which are attached to the side of the whiteboard closest to the longitudinal guide rod. After the illuminance meter on the mounting assembly locates the point of maximum light intensity, the operator can place a magnetic marker block at that point on the whiteboard and record its coordinates. This allows for precise location tracking of the point of maximum light intensity, avoiding errors caused by manual visual marking.

[0013] Preferably, each magnetic marker block includes a magnetic suction element and a housing connected to the magnetic suction element, and the magnetic suction element is magnetically connected to the white board. The housing can be a striking color such as red, yellow, orange, or green, so that inspectors can more intuitively identify the point of maximum light intensity. When inspecting the left and right headlights, magnetic marker blocks with housings of different colors can be used to mark the points of maximum light intensity on both sides for intuitive data confirmation and comparison.

[0014] Preferably, the mounting assembly includes a connecting structure, a first mounting structure, and a second mounting structure. The connecting structure is simultaneously connected to the lifting slider and the first mounting structure. The first mounting structure has a positioning cavity for inserting a positioning pin from the light collector housing. The second mounting structure is connected to the first mounting structure and has a limiting slot for mounting a reading display. In the prior art, lux meters generally include a light collector and a reading display. A positioning pin can be set on the back of the existing light collector, and then the positioning pin is passed through the positioning cavity to fix the light collector to the first mounting structure. However, the reading display is larger and heavier than the light collector, and the positioning pin does not provide sufficient support. Therefore, a limiting slot is provided, and the reading display is inserted into the limiting slot, which allows the reading display to be stably mounted on the second mounting structure. By mounting the entire lux meter on the mounting assembly in the above manner, the mounting assembly can easily and quickly fix and remove the lux meter.

[0015] Preferably, the second mounting structure has a window on the side away from the whiteboard, the window communicating with the limiting slot, and blocking structures on the bottom side of the window and the other two sides adjacent to the bottom side. Providing a window exposes the display screen of the reading indicator, allowing staff to directly view the readings on the display, thus eliminating the need for frequent handling of the reading indicator.

[0016] This utility model also provides an automotive headlight detection device, which includes an illuminance meter, the illuminance meter including a light collector and a reading display, the reading display being electrically connected to the light collector, and also includes the aforementioned adjustable limiting device. The back of the housing of the light collector is provided with a positioning pin, the positioning pin passing through the positioning cavity; the reading display is inserted into the limiting slot.

[0017] Preferably, the light collector is located between the reading display and the lifting slider; the top of the housing of the light collector is provided with a first sharp tooth; the side of the second mounting structure away from the light collector is provided with a second sharp tooth; the longitudinal centerline of the light collector passes through the tip of the first sharp tooth, and the transverse centerline of the light collector passes through the tip of the second sharp tooth. In the prior art, the intersection of the longitudinal and transverse centerlines of the light collector is the measurement point. The ordinate of the location of the tip of the first sharp tooth is the ordinate of the measurement point, and the abscissa of the location of the tip of the second sharp tooth is the abscissa of the measurement point. By using the first and second sharp teeth, the coordinates of the point of maximum light intensity on the whiteboard can be determined more accurately.

[0018] The beneficial effects of this utility model are:

[0019] 1. By setting up an installation component and a limiting component, the installation component is slidably connected to the whiteboard on the same vertical plane via the limiting component. After the illuminance meter is installed onto the installation component, the illuminance meter can be moved by moving the installation component, maintaining a constant distance between the illuminance meter and the whiteboard. This avoids the influence of changes in the distance between the illuminance meter and the whiteboard on the measurement results, thereby eliminating measurement errors and improving the accuracy of the measurement results.

[0020] 2. The mounting components can slide in both horizontal and vertical directions, enabling detection at any position on the whiteboard and facilitating quick positioning of the illuminance meter at any coordinate point on the whiteboard. The sliders on the limit components are all locking sliders, which can lock the mounting components when the maximum light intensity point is determined, so as to confirm the coordinates of the maximum light intensity point on the whiteboard.

[0021] 3. The mounting components are compatible with the structure of the illuminance meter, which can stabilize the illuminance meter on the mounting components and facilitate quick removal and placement of the illuminance meter.

[0022] 4. By setting a first sharp tooth on the light collector housing of the illuminance meter and a second sharp tooth on one side of the mounting component, the coordinates of the point of maximum light intensity on the whiteboard can be determined more accurately. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an adjustable limit device.

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle;

[0025] Figure 3 This is a structural diagram of the base, whiteboard, and limiting components.

[0026] Figure 4 for Figure 3 A magnified schematic diagram of part B in the middle;

[0027] Figure 5 for Figure 3 A magnified schematic diagram of part C in the middle;

[0028] Figure 6 This is a schematic diagram of the installation components after the illuminance meter has been placed.

[0029] Figure 7 This is a schematic diagram of the limiting ring structure;

[0030] Figure 8 This is a schematic diagram of the structure of a magnetic marker block;

[0031] Figure 9 This is a schematic diagram of the installation components before the illuminance meter is placed.

[0032] Figure 10 This is a schematic diagram of the rear structure of the mounting components.

[0033] In the attached diagram: 1-Base; 2-Whiteboard; 3-Mounting assembly; 301-Connecting structure; 302-First mounting structure; 3021-Positioning cavity; 303-Second mounting structure; 3031-Limiting slot; 3032-Window; 3033-Blocking structure; 3034-Second sharp tooth; 4-Longitudinal guide rod; 5-First transverse guide rod; 6-Second transverse guide rod; 7-First transverse slider assembly; 701-First threaded through hole; 8-Second transverse slider assembly; 801-Second threaded through hole; 9-Lifting slider Block; 10-First locking bolt; 1001-First turning handle; 11-Second locking bolt; 1101-Second turning handle; 12-Third locking bolt; 1201-Third turning handle; 13-Limiting ring; 1301-Opening; 1302-Fourth threaded through hole; 1303-Threaded blind hole; 14-Fourth locking bolt; 1401-Fourth turning handle; 15-Magnetic marking block; 16-Light collector; 1601-Positioning pin; 1602-First sharp tooth; 17-Reading display. Detailed Implementation

[0034] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0035] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0037] Example 1

[0038] This embodiment is a first embodiment of an adjustable limiting device, such as... Figure 1 and Figure 2As shown, it includes a base 1, a whiteboard 2, a limiting component, and a mounting component 3. A bracket (not shown) is mounted on the base 1. The whiteboard 2 is connected to the base 1 via the bracket, and the limiting component is also connected to the base 1 via the bracket. The limiting component is connected to the bracket, meaning it is connected to the base 1 via the bracket. The mounting component 3 is used to mount the lux meter, and it is slidably connected to the whiteboard 2 in the same vertical plane via the limiting component.

[0039] The working principle or workflow of this embodiment is as follows: During implementation, the illuminance meter is installed on the mounting assembly 3. The operator can manually slide the mounting assembly 3, thereby moving the illuminance meter. Since the mounting assembly 3 and the limiting assembly are slidably connected on the same vertical plane, the mounting assembly 3 maintains a constant distance from the whiteboard 2 during sliding, thus ensuring a constant distance between the illuminance meter and the whiteboard 2. This avoids the influence of changes in the distance between the illuminance meter and the whiteboard 2 on the measurement results, thereby eliminating measurement errors and improving the accuracy of the measurement results.

[0040] Example 2

[0041] This embodiment is a second embodiment of an adjustable limiting device. This embodiment is similar to embodiment 1, except that it combines... Figures 1 to 6 As shown, the limiting assembly includes a longitudinal guide rod 4, a first transverse guide rod 5, and a second transverse guide rod 6. The top and bottom ends of the longitudinal guide rod 4 are slidably connected to the first transverse guide rod 5 and the second transverse guide rod 6 in the horizontal direction, respectively, and the longitudinal guide rod 4 maintains a certain distance from the whiteboard 2. The mounting assembly 3 is slidably connected to the longitudinal guide rod 4 in the vertical direction. During operation, the mounting assembly 3 can slide up and down along the longitudinal guide rod 4, while the longitudinal guide rod 4 can slide horizontally along the first transverse guide rod 5 and the second transverse guide rod 6, thereby driving the mounting assembly 3 to slide horizontally. This bidirectional sliding design allows for detection at any position on the whiteboard 2 and also facilitates quick adjustment of the illuminance meter to any coordinate point on the whiteboard 2.

[0042] Furthermore, the limiting assembly also includes a first transverse slider group 7 and a second transverse slider group 8; the top end of the longitudinal guide rod 4 is slidably connected to the first transverse guide rod 5 through the first transverse slider group 7, and the bottom end of the longitudinal guide rod 4 is slidably connected to the second transverse guide rod 6 through the second transverse slider group 8; the mounting assembly 3 is connected to a lifting slider 9, and the mounting assembly 3 is slidably connected to the longitudinal guide rod 4 through the lifting slider 9; the first transverse slider group 7 is provided with a first threaded through hole 701, and a first locking bolt 10 is threadedly connected to the first threaded through hole 701, and the first locking bolt 10 can be rotated to abut against the first transverse guide rod 5; the second transverse slider group 8 is provided with a second threaded through hole 801, and a second locking bolt 11 is threadedly connected to the second threaded through hole 801, and the second locking bolt 11 can be rotated to abut against the second transverse guide rod 6; the lifting slider 9 is provided with a third threaded through hole (not shown in the figure), and a third locking bolt 12 is threadedly connected to the third threaded through hole, and the third locking bolt 12 can be rotated to abut against the longitudinal guide rod 4. Understandably, by tightening the first locking bolt 10 to press it against the first transverse guide rod 5, the first transverse slider assembly 7 can be locked onto the first transverse guide rod 5. The operation and function of the second locking bolt 11 and the third locking bolt 12 are similar to those of the first locking bolt 10. Each slider has a corresponding locking bolt, which allows the mounting assembly 3 to be locked in the corresponding position when the point of maximum light intensity is determined, thus confirming the coordinates of the point of maximum light intensity on the whiteboard 2.

[0043] Furthermore, the first locking bolt 10 has a first tightening handle 1001 at the end away from the first transverse guide rod 5, and the first tightening handle 1001 is located outside the first threaded through hole 701; the second locking bolt has a second tightening handle 1101 at the end away from the second transverse guide rod 6, and the second tightening handle 1101 is located outside the second threaded through hole 801; the third locking bolt 12 has a third tightening handle 1201 at the end away from the longitudinal guide rod 4, and the third tightening handle 1201 is located outside the third threaded through hole. The first tightening handle 1001 facilitates the operator in tightening the first locking bolt 10. The functions of the second tightening handle 1101 and the third tightening handle 1201 are similar to those of the first tightening handle 1001, and therefore will not be described further.

[0044] Furthermore, combined Figure 1 , Figure 2 and Figure 7As shown, it also includes a limiting ring 13 and a fourth locking bolt 14. The limiting ring 13 is sleeved on the longitudinal guide rod 4 and located below the lifting slider 9, abutting against the lifting slider 9. The limiting ring 13 has an opening 1301, thus forming two connecting ends on the limiting ring 13. One connecting end of the limiting ring 13 has a fourth threaded through hole 1302, and the other connecting end has a threaded blind hole 1303. The fourth locking bolt 14 is threadedly connected to both the fourth threaded through hole 1302 and the threaded blind hole 1303. The end of the fourth locking bolt 14 away from the threaded blind hole 1303 has a fourth turning handle 1401, which is located outside the fourth threaded through hole 1302. It can be understood that the fourth locking bolt 14 can lock the limiting ring 13 onto the longitudinal guide rod 4, so that the limiting ring 13 can support the lifting slider 9 and reduce the risk of the lifting slider 9 sliding down.

[0045] Furthermore, combined Figure 1 and Figure 8 As shown, the device also includes several magnetic marker blocks 15. The whiteboard 2 is a conventional magnetic whiteboard, and the magnetic marker blocks 15 are all attached to the side of the whiteboard 2 closest to the longitudinal guide rod 4. After the illuminance meter on the mounting assembly 3 finds the point of maximum light intensity, the operator can place the magnetic marker block 15 on the whiteboard 2 at that point and then record the position coordinates of the magnetic marker block 15. This can lock the precise position of the point of maximum light intensity and avoid offset errors when manually marking.

[0046] Specifically, each magnetic marker block 15 includes a magnetic suction element and a plastic shell connected to the magnetic suction element. The magnetic suction element is magnetically connected to the white board 2. The shell can be made of eye-catching colors such as red, yellow, orange, and green, so that the inspectors can more intuitively identify the point of maximum light intensity. When inspecting the left and right headlights, magnetic marker blocks 15 with shells of different colors can be used to mark the points of maximum light intensity on both sides for intuitive data confirmation and comparison [g1][2].

[0047] Furthermore, combined Figure 1 , Figure 2 , Figure 6 , Figure 9 and 10As shown, the mounting assembly 3 includes a connecting structure 301, a first mounting structure 302, and a second mounting structure 303. The connecting structure 301 is connected to both the lifting slider 9 and the first mounting structure 302. The first mounting structure 302 has a positioning cavity 3021 for inserting a positioning pin 1601 from the housing of the light collector 16. The second mounting structure 303 is connected to the first mounting structure 302 and has a limiting slot 3031 for mounting a reading display 17. In the prior art, lux meters generally include a light collector 16 and a reading display 17. A positioning pin 1601 can be provided on the back of the existing light collector 16, and then the positioning pin 1601 can be passed through the positioning cavity 3021 to fix the light collector 16 to the first mounting structure 302. However, the reading display 17 is larger and heavier than the light collector 16, and the positioning pin 1601 provides insufficient support. Therefore, a limiting slot 3031 is provided, and the reading display 17 is inserted into the limiting slot 3031, so that the reading display 17 can be stably mounted on the second mounting structure 303. The entire illuminance meter is mounted on the mounting assembly 3 in the above manner, and the mounting assembly 3 can easily and quickly fix the illuminance meter and remove it.

[0048] Furthermore, the second mounting structure 303 has a window 3032 on the side away from the whiteboard 2. The window 3032 communicates with the limiting slot 3031. A blocking structure 3033 is provided on the bottom side of the window 3032 and on the other two sides adjacent to the bottom side. The window 3032 exposes the display screen of the reading display 17 so that the staff can directly view the reading on the reading display 17, thus eliminating the need to frequently pick up and put down the reading display 17.

[0049] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1.

[0050] Example 3

[0051] This embodiment is a first embodiment of an automotive headlight detection device, combined with... Figures 1 to 10 As shown, it includes an illuminance meter, which includes a light collector 16 and a reading display 17. The reading display 17 is electrically connected to the light collector 16 and also includes the aforementioned adjustable limiting device. The back of the housing of the light collector 16 is provided with a positioning pin 1601, which passes through the positioning cavity 3021. The reading display 17 is inserted into the limiting slot 3031.

[0052] Furthermore, the light collector 16 is located between the reading display 17 and the lifting slider 9; the top of the housing of the light collector 16 is provided with a first sharp tooth 1602; the second mounting structure 303 is provided with a second sharp tooth 3034 on the side away from the light collector 16; the longitudinal centerline of the light collector 16 passes through the tip of the first sharp tooth 1602, and the transverse centerline of the light collector 16 passes through the tip of the second sharp tooth 3034. In the prior art, the cosine corrector of the light collector 16 is circular, and the intersection of its longitudinal centerline and transverse centerline is the measurement point. The ordinate of the location of the tip of the first sharp tooth 1602 is the ordinate of the measurement point, and the abscissa of the location of the tip of the second sharp tooth 3034 is the abscissa of the measurement point. By using the first sharp tooth 1602 and the second sharp tooth 3034, the coordinates of the point of maximum light intensity on the whiteboard 2 can be determined more accurately.

[0053] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 2.

[0054] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description, and it is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An adjustable limiting device, comprising a base (1) and a whiteboard (2), the whiteboard (2) being connected with the base (1), characterized in that, It also includes a limiting component and an installation component (3), the limiting component being connected to the base (1) and / or the whiteboard (2); the installation component (3) is used to install a lux meter, and the installation component (3) is slidably connected to the whiteboard (2) in the same vertical plane through the limiting component.

2. An adjustable stop device according to claim 1, wherein The limiting component includes a longitudinal guide rod (4), a first transverse guide rod (5), and a second transverse guide rod (6). The top and bottom ends of the longitudinal guide rod (4) are slidably connected to the first transverse guide rod (5) and the second transverse guide rod (6) in the horizontal direction, respectively. The mounting component (3) is slidably connected to the longitudinal guide rod (4) in the vertical direction.

3. An adjustable stop device according to claim 2, wherein, The limiting component further includes a first transverse slider group (7) and a second transverse slider group (8); the top end of the longitudinal guide rod (4) is slidably connected to the first transverse guide rod (5) through the first transverse slider group (7), and the bottom end of the longitudinal guide rod (4) is slidably connected to the second transverse guide rod (6) through the second transverse slider group (8); the mounting component (3) is connected to a lifting slider (9), and the mounting component (3) is slidably connected to the longitudinal guide rod (4) through the lifting slider (9); the first transverse slider group (7) is provided with a first threaded through hole (701), and the first threaded through hole (701) is provided with a first threaded through hole (701). 1) A first locking bolt (10) is threaded on the upper part, and the first locking bolt (10) can be rotated to abut against the first transverse guide rod (5); the second transverse slider group (8) is provided with a second threaded through hole (801), and a second locking bolt (11) is threaded on the second threaded through hole (801), and the second locking bolt (11) can be rotated to abut against the second transverse guide rod (6); the lifting slider (9) is provided with a third threaded through hole, and a third locking bolt (12) is threaded on the third threaded through hole, and the third locking bolt (12) can be rotated to abut against the longitudinal guide rod (4).

4. An adjustable stop device according to claim 3, wherein The first locking bolt (10) has a first screw handle (1001) at one end away from the first transverse guide rod (5), and the first screw handle (1001) is located outside the first threaded through hole (701); the second locking bolt (11) has a second screw handle (1101) at one end away from the second transverse guide rod (6), and the second screw handle (1101) is located outside the second threaded through hole (801); the third locking bolt (12) has a third screw handle (1201) at one end away from the longitudinal guide rod (4), and the third screw handle (1201) is located outside the third threaded through hole.

5. An adjustable stop device according to claim 3, wherein, It also includes several magnetic marker blocks (15), all of which are attached to the side of the whiteboard (2) near the longitudinal guide rod (4).

6. An adjustable stop device according to claim 5, wherein, Each of the magnetic marker blocks (15) includes a magnetic chuck and a housing connected to the magnetic chuck, and the magnetic chuck is magnetically connected to the whiteboard (2).

7. An adjustable stop device according to any one of claims 3 to 6, wherein, The mounting assembly (3) includes a connecting structure (301), a first mounting structure (302), and a second mounting structure (303). The connecting structure (301) is connected to both the lifting slider (9) and the first mounting structure (302). The first mounting structure (302) is provided with a positioning cavity (3021), which is used to insert a positioning pin (1601) on the housing of the light collector (16). The second mounting structure (303) is connected to the first mounting structure (302), and the second mounting structure (303) is provided with a limiting slot (3031), which is used to install a reading display (17).

8. An adjustable stop device according to claim 7, wherein, The second mounting structure (303) has a window (3032) on the side away from the whiteboard (2), the window (3032) is connected to the limiting slot (3031), and a blocking structure (3033) is provided on the bottom side of the window (3032) and the other two sides adjacent to the bottom side.

9. A headlamp detection device for a motor vehicle, comprising a light meter comprising a light collector (16) and a reading display (17), the reading display (17) being electrically connected to the light collector (16), characterized in that, It also includes the adjustable limiting device as described in claim 8, wherein the back of the housing of the light collector (16) is provided with a positioning pin (1601), the positioning pin (1601) passes through the positioning cavity (3021); and the reading display (17) is inserted into the limiting slot (3031).

10. The automotive headlamp detection device of claim 9, wherein The light collector (16) is located between the reading display (17) and the lifting slider (9); the top of the housing of the light collector (16) is provided with a first sharp tooth (1602); the second mounting structure (303) is provided with a second sharp tooth (3034) on the side away from the light collector (16); the longitudinal centerline of the light collector (16) passes through the tip of the first sharp tooth (1602), and the transverse centerline of the light collector (16) passes through the tip of the second sharp tooth (3034).

Images