An auxiliary light-shielding device for detecting automotive headlights

Abstract

This utility model relates to the field of automotive component testing technology, and more specifically, to an auxiliary light-shielding device for automotive headlight testing. The device includes a light-shielding assembly with a front light-shielding surface and a side light-shielding surface. The front and side light-shielding surfaces together form an accommodating space that allows partial entry into the vehicle. This utility model overcomes the shortcomings of existing technologies that use cardboard for light shielding, which result in side light leakage and inaccurate headlight testing results. The light-shielding assembly of this utility model has a front and side light-shielding surface. The front light-shielding surface blocks light from the front of the vehicle body, and the side light-shielding surface blocks light from the sides of the vehicle body, preventing light leakage from the sides and thus reducing the impact of stray light on the testing results, improving the accuracy of the testing results.

Description

Technical Field

[0001] This utility model relates to the field of automotive component testing technology, and more specifically, to an auxiliary light-shielding device for testing automotive headlights. Background Technology

[0002] As a legally mandated random inspection item, vehicle manufacturers are required to conduct random inspections of their vehicles annually at a prescribed frequency. During the inspection process, the vehicle must be parked in a designated location, and the left and right headlights must be blocked in sequence. The data to be recorded is determined by analyzing the illumination images on the whiteboard and the values ​​from the testing equipment.

[0003] Headlight testing is conducted in a darkened chamber with a flat surface, equipped with a whiteboard and testing equipment. The specific testing steps are as follows: The vehicle is parked in front of the whiteboard, ensuring the vehicle's longitudinal centerline aligns with the centerline of the testing equipment. Then, both the left and right headlights are simultaneously turned on. A piece of cardboard is used to cover the right headlight, and the cutoff line of the left headlight on the whiteboard is measured. Next, the horizontal and longitudinal offsets of the low beam and the position of the maximum light intensity of the high beam are measured. Finally, the results are analyzed. After testing the left headlight, the same steps are used to test the right headlight.

[0004] However, cardboard is not very effective at blocking light. While it can block the light shining directly in front of the car, some light will still leak out from the sides, resulting in light leakage and inaccurate measurements. Furthermore, because car headlights get very hot, cardboard can easily scorch if left near the headlights for extended periods. Summary of the Invention

[0005] To address the problem in the prior art where using cardboard for light shielding results in side light leakage and inaccurate headlight testing results, this invention provides an auxiliary light shielding device for headlight testing, which can prevent light leakage and improve the accuracy of testing results.

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

[0007] An auxiliary light-shielding device for detecting automotive headlights includes a light-shielding assembly. The light-shielding assembly has a front light-shielding surface and a side light-shielding surface, which together form an accommodating space that allows partial entry into the vehicle.

[0008] When using the above-mentioned device, place it on the headlight that needs to be blocked, so that the headlight enters the accommodating space formed by the front light-blocking surface and the side light-blocking surface. The front light-blocking surface is positioned in front of the headlight, blocking the light shining towards the front of the vehicle body, while the side light-blocking surface is positioned to the side of the headlight (e.g., if the blocked headlight is the left headlight, the side light-blocking surface is on the left side of the vehicle body; if the blocked headlight is the right headlight, the side light-blocking surface is on the right side of the vehicle body). The side light-blocking surface can block light leaking from the side of the vehicle body, reducing the influence of stray light on the detection results, thereby improving the accuracy of the detection results.

[0009] Preferably, the light-shielding assembly also has a top light-shielding surface, with two sides of the top light-shielding surface connected to the top of the front light-shielding surface and the top of the side light-shielding surface, respectively. In practical applications, even with front and side light-shielding, some light may still leak from the top of the lamp, and this light leakage may be mistakenly collected by the detection equipment, affecting the detection results. However, with the top light-shielding surface, the front, side, and top sides form a light-shielding structure, completely blocking light leakage from directions other than the detection direction, ensuring that only the light from the headlight being tested enters the measurement area, thereby further improving the accuracy of the detection results.

[0010] Preferably, the light-shielding assembly includes a frame and a light-shielding cloth, the light-shielding cloth being connected to the frame, and the front light-shielding surface, the side light-shielding surfaces, and the top light-shielding surface all located on the light-shielding cloth. In practical use, the light-shielding cloth can be made of black nylon to ensure good light-shielding effect. Compared to rigid light-shielding structures, flexible light-shielding cloth will not scratch the paint surface of the vehicle body when in contact with it. Moreover, flexible light-shielding cloth is lighter, which can reduce the weight of the device.

[0011] Preferably, the frame also includes a support base to which it is attached. The support base helps stabilize the frame, eliminating the need for manual support.

[0012] Preferably, the bottom of the support base is equipped with multiple casters. The casters facilitate the movement and transport of the device by workers.

[0013] Preferably, the bottom end of the light-blocking cloth is lower than the bottom end of the caster, or the bottom end of the light-blocking cloth is flush with the bottom end of the caster. The bottom end of the light-blocking cloth contacting the ground prevents gaps from forming between the cloth and the ground, thus avoiding light leakage.

[0014] Preferably, the frame includes a first upright, a second upright, a third upright, a first top crossbar, and a second top crossbar; one end of the first top crossbar is connected to one end of the second top crossbar; the top end of the first upright is connected to the end of the first top crossbar away from the second top crossbar; the top end of the second upright is connected to the junction of the first and second top crossbars; and the top end of the third upright is connected to the end of the second top crossbar away from the first top crossbar. This frame structure is relatively simple and can greatly reduce the chance of contact between the car and the frame, thereby reducing the risk of a collision between the car and the frame.

[0015] Preferably, the frame is provided with a buffer layer on its exterior. When the frame accidentally collides with the vehicle body, the buffer layer can cushion the rigid impact between the rigid frame and the vehicle body, thereby reducing the risk of damage to the vehicle body. The buffer layer can be any one of a rubber layer, a silicone layer, a fleece layer, or an inflatable cushion layer.

[0016] Preferably, a reinforcing rod is provided at the top of the frame, and the two ends of the reinforcing rod are connected to the first upright and the third upright, respectively. The reinforcing rod increases the strength of the frame, making it more stable. It is understood that during use, the reinforcing rod is located above the car lights and will not collide with the car body; moreover, the reinforcing rod is relatively lightweight and will not significantly increase the weight of the device.

[0017] Preferably, the bottom ends of the first, second, and third uprights are respectively connected to the three apex corners of the support base. In use, most of the support base is hidden under the vehicle body, avoiding safety risks caused by partial protrusions. This also facilitates the installation of the sunshade cloth for mopping.

[0018] Preferably, the angle between the front light-shielding surface and the side light-shielding surface is between 80° and 100°. Within this angle range, the front light-shielding surface and the side light-shielding surface can closely fit the outer contour of the headlight, thereby improving the light-shielding effect.

[0019] The beneficial effects of this utility model are:

[0020] 1. The light-shielding assembly is equipped with a front light-shielding surface and a side light-shielding surface. The front light-shielding surface can block the light from the front of the vehicle body, and the side light-shielding surface can block the light from the side of the vehicle body, so as to avoid light leakage from the side of the vehicle body, thereby reducing the influence of stray light on the test results and improving the accuracy of the test results.

[0021] 2. The light-shielding component is also equipped with a top light-shielding surface and three-sided enclosures at the front, sides and top, which can completely block light leakage from non-detection directions and ensure that only the headlight light being tested enters the measurement area, thereby further improving the accuracy of the test results.

[0022] 3. The sunshade assembly consists of a frame and a sunshade cloth. The flexible sunshade cloth will not scratch the paint surface of the car body when it comes into contact with the car body, and it can fit closely to the car body, thereby improving the sunshade effect.

[0023] 4. The frame is connected to a support base at the bottom, which keeps the frame stable and prevents it from tipping over; and casters are installed at the bottom of the support base to facilitate the movement and handling of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an auxiliary light-shielding device used for detecting automotive headlights;

[0025] Figure 2 This is a structural diagram of the framework;

[0026] Figure 3 This is a schematic diagram of the external structure of the blackout fabric.

[0027] In the attached diagram: 1-Frame; 101-First upright; 102-Second upright; 103-Third upright; 104-First top crossbar; 105-Second top crossbar; 106-Reinforcing bar; 2-Blackout cloth; 201-Front end blackout surface; 202-Side end blackout surface; 203-Top end blackout surface; 3-Support base; 4-Cast. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0031] Example 1

[0032] This embodiment is a first embodiment of an auxiliary light-shielding device for detecting automotive headlights, such as... Figure 1 As shown, it includes a light-shielding assembly, which has a front light-shielding surface 201 and a side light-shielding surface 202. The front light-shielding surface 201 and the side light-shielding surface 202 together form an accommodating space that allows partial entry of a vehicle.

[0033] The working principle or workflow of this embodiment is as follows: During implementation, the device is placed at the headlight that needs to be blocked, so that the headlight enters the accommodating space formed by the front light-blocking surface 201 and the side light-blocking surface 202. The front light-blocking surface 201 is located in front of the headlight, blocking the light shining towards the front of the vehicle body. The side light-blocking surface 202 is located beside the headlight (e.g., if the blocked light is the left headlight, the side light-blocking surface is located on the left side of the vehicle body; if the blocked light is the right headlight, the side light-blocking surface is located on the right side of the vehicle body). The side light-blocking surface 202 can block light leaking from the side of the vehicle body, reducing the influence of stray light on the detection results, thereby improving the accuracy of the detection results.

[0034] The beneficial effects of this embodiment are: the light-shielding component is provided with a front light-shielding surface and a side light-shielding surface. The front light-shielding surface can block the light from the front of the vehicle body, and the side light-shielding surface can block the light from the side of the vehicle body, thereby avoiding light leakage from the side of the vehicle body, reducing the influence of stray light on the detection results, and improving the accuracy of the detection results.

[0035] Example 2

[0036] This embodiment is a second embodiment of an auxiliary light-shielding device for detecting automotive headlights. This embodiment is similar to Embodiment 1, except that it combines... Figures 1 to 3 As shown, the light-shielding assembly also includes a top light-shielding surface 203, with two sides of the top light-shielding surface 203 connected to the top of the front light-shielding surface 201 and the top of the side light-shielding surface 202, respectively. In practical applications, even with front and side light-shielding, some light may still leak from the top of the lamp, and this light leakage may be mistakenly collected by the detection equipment, affecting the detection results. However, with the top light-shielding surface 203, the front, side, and top sides form a light-shielding structure, completely blocking light leakage from directions other than the detection direction, ensuring that only the light from the headlight being tested enters the measurement area, thereby further improving the accuracy of the detection results.

[0037] Furthermore, the light-shielding assembly includes a frame 1 and a light-shielding cloth 2. The light-shielding cloth 2 is connected to the frame 1, and the front light-shielding surface 201, the side light-shielding surface 202, and the top light-shielding surface 203 are all located on the light-shielding cloth 2. In this embodiment, the light-shielding cloth 2 is made of black nylon fabric, which ensures that the device has a good light-shielding effect. Compared with a rigid light-shielding structure, the flexible light-shielding cloth 2 will not scratch the paint surface of the vehicle body when it comes into contact with the vehicle body. Moreover, the flexible light-shielding cloth 2 is lighter, which can reduce the weight of the device.

[0038] Furthermore, it also includes a square support base 3, to which the frame 1 is connected. The support base 3 can keep the frame 1 stable, thus eliminating the need for manual support of the frame 1.

[0039] Furthermore, the bottom of the support base 3 is equipped with four casters 4, which are located at the four corners of the support base 3. The casters 4 facilitate the movement of the device by the staff.

[0040] Furthermore, the bottom of the blackout cloth 2 is lower than the bottom of the caster 4, meaning the blackout cloth 2 drags on the floor. The bottom of the blackout cloth 2 touching the ground prevents gaps from forming between the cloth and the ground, thus avoiding light leakage.

[0041] Furthermore, the frame 1 includes a first upright 101, a second upright 102, a third upright 103, a first top crossbar 104, and a second top crossbar 105; one end of the first top crossbar 104 is connected to one end of the second top crossbar 105; the top end of the first upright 101 is connected to the end of the first top crossbar 104 away from the second top crossbar 105; the top end of the second upright 102 is connected to the junction of the first top crossbar 104 and the second top crossbar 105; and the top end of the third upright 103 is connected to the end of the second top crossbar 105 away from the first top crossbar 104. This frame 1 structure is relatively simple and can greatly reduce the chance of contact between the car and the frame 1, thereby reducing the risk of a collision between the car and the frame 1.

[0042] Furthermore, a reinforcing rod 106 is provided at the top of the frame 1, with its two ends connected to the first upright 101 and the third upright 103, respectively. The reinforcing rod 106 increases the strength of the frame 1, making it more stable. It is understood that during use, the reinforcing rod 106 is located above the car lights and will not collide with the car body; moreover, the reinforcing rod 106 is relatively lightweight and will not significantly increase the weight of the device.

[0043] Furthermore, the bottom ends of the first upright 101, the second upright 102, and the third upright 103 are respectively connected to the three apex corners of the support base 3. In use, most of the support base 3 is hidden under the vehicle body, avoiding safety risks caused by partial protrusion of the support base 3. This also facilitates the mopping of the sunshade cloth 2.

[0044] Furthermore, the angle between the front light-shielding surface 201 and the side light-shielding surface 202 is 90°. At this angle, the front light-shielding surface 201 and the side light-shielding surface 202 can closely fit the outer contour of the headlight, thereby improving the light-shielding effect.

[0045] The advantages of this embodiment compared to Embodiment 1 are as follows:

[0046] 1. The light-shielding component is also equipped with a top light-shielding surface and three-sided enclosures at the front, sides and top, which can completely block light leakage from non-detection directions and ensure that only the headlight light being tested enters the measurement area, thereby further improving the accuracy of the test results.

[0047] 2. The sunshade assembly consists of a frame and a sunshade cloth. The flexible sunshade cloth will not scratch the paint surface of the car body when it comes into contact with the car body, and it can fit closely to the car body, thereby improving the sunshade effect.

[0048] 3. The frame is connected to a support base at the bottom, which keeps the frame stable and prevents it from tipping over; and casters are installed at the bottom of the support base to facilitate the movement and handling of the device.

[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 third embodiment of an auxiliary light-shielding device for detecting automotive headlights. This embodiment is similar to embodiment 2, except that, see [reference needed]. Figure 2 The frame 1 is equipped with a buffer layer (not shown in the figure) on its exterior, meaning a buffer layer is installed on the exterior of each member of the frame. When the frame 1 accidentally collides with the vehicle body, the buffer layer can cushion the rigid impact between the rigid frame 1 and the vehicle body, thereby reducing the risk of damage to the vehicle body. The buffer layer can be any one of the following: a rubber layer, a silicone layer, a fleece layer, or an inflatable air cushion layer.

[0052] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 2.

[0053] 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.

[0054] 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 auxiliary shade device for automotive headlamp detection, characterized in that, The device includes a light-shielding assembly, which has a front light-shielding surface (201) and a side light-shielding surface (202). The front light-shielding surface (201) and the side light-shielding surface (202) together form an accommodating space that allows partial entry of a vehicle.

2. The auxiliary shade device for detecting the automobile headlamp according to claim 1, wherein The light-shielding component is also provided with a top light-shielding surface (203), and two sides of the top light-shielding surface (203) are respectively connected to the top of the front light-shielding surface (201) and the top of the side light-shielding surface (202).

3. The auxiliary shade device for detecting the automobile headlamp according to claim 2, wherein The light-shielding assembly includes a frame (1) and a light-shielding cloth (2), the light-shielding cloth (2) being connected to the frame (1), and the front light-shielding surface (201), the side light-shielding surface (202), and the top light-shielding surface (203) being located on the light-shielding cloth (2).

4. The auxiliary shade device for detecting the automobile headlamp according to claim 3, wherein It also includes a support base (3), to which the frame (1) is connected.

5. The auxiliary shade device for detecting the automobile headlamp according to claim 4, wherein The bottom of the support base (3) is provided with multiple casters (4).

6. The auxiliary shade device for automotive headlamp detection according to claim 5, wherein The bottom end of the light-blocking cloth (2) is lower than the bottom end of the caster (4), or the bottom end of the light-blocking cloth (2) is flush with the bottom end of the caster (4).

7. The auxiliary shade device for automotive headlamp detection according to claim 4, wherein The frame (1) includes a first upright (101), a second upright (102), a third upright (103), a first top crossbar (104), and a second top crossbar (105); one end of the first top crossbar (104) is connected to one end of the second top crossbar (105); the top end of the first upright (101) is connected to the end of the first top crossbar (104) away from the second top crossbar (105); the top end of the second upright (102) is connected to the connection between the first top crossbar (104) and the second top crossbar (105); the top end of the third upright (103) is connected to the end of the second top crossbar (105) away from the first top crossbar (104).

8. The auxiliary shade device for automotive headlamp detection according to claim 7, wherein The top of the frame (1) is provided with a reinforcing rod (106), and the two ends of the reinforcing rod (106) are respectively connected to the first upright (101) and the third upright (103).

9. The auxiliary shade device for automotive headlamp detection according to claim 8, wherein The bottom ends of the first upright (101), the second upright (102) and the third upright (103) are respectively connected to the three apex corners of the support base (3).

10. The auxiliary shade device for detecting the automobile headlamp according to any one of claims 1 to 9, characterized in that, The angle between the front light-shielding surface (201) and the side light-shielding surface (202) is between 80° and 100°.

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