Automatic dimming and calibration device for automotive headlight testing
By using the sliding support structure of the lower and upper guide pillars and the drive motor system, the problems of large storage space and dust accumulation of the headlight detector are solved, achieving space saving and ensuring light transmittance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA AUTOMOTIVE ENG RES INST
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-17
Smart Images
Figure CN224518088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive testing equipment technology, and in particular to an automatic dimming and calibration device for automotive headlight testing. Background Technology
[0002] The headlight tester can measure various parameters of automotive headlights, such as the luminous intensity of the high beam, the offset of the high beam axis, the intersection and offset of the low beam cutoff line, and the reference height of the headlight. By detecting these parameters, the headlights can be automatically dimmed and calibrated.
[0003] Most headlight testers currently in use adjust their height using a lead screw. When the headlights are finished and need to be stored, the height-adjusting column and lead screw usually cannot be folded down, which takes up a lot of vertical space and affects the placement of other items in the workshop or warehouse. Moreover, the workshop is often dusty, and the light-transmitting glass on the headlight tester is easily covered by dust, affecting the light transmittance of the test. Summary of the Invention
[0004] This utility model provides an automatic dimming and calibration device for automotive headlight detection. It saves vertical space when stored, and the rubber strip inside the protective housing can clean the dust on the light-transmitting glass on the front of the detector body, ensuring the light transmittance for the next use.
[0005] In a first aspect, this utility model provides an automatic dimming and calibration device for automotive headlight detection, specifically comprising: a base; two lower guide posts fixed to the top left side of the base by welding, and an upper guide post rotatably mounted on the top of the two lower guide posts; a protective housing also fixed to the top of the base by welding; a detector body slidably mounted on the right side of the lower and upper guide posts, a drive motor installed inside the detector body, and a gear mounted on one end of the drive motor's main shaft; and a positioning screw screwed onto the bottom of both the front and rear sides of the upper guide posts.
[0006] The upper guide post has a rectangular protrusion plate on the bottom of both the front and rear sides, and the top of one side of each of the two lower guide posts also has a corresponding rectangular notch.
[0007] The lower guide post and the upper guide post are provided with a vertical slot. The gear is located in the vertical slot. One side of the lower guide post is provided with a rack. One side of the slot in the middle of the upper guide post is also provided with a rack. The gear meshes with the racks on the lower and upper guide posts.
[0008] The protective housing has a rectangular groove with an open top on the inner side. When the detector body moves down to the bottom, it will be embedded in the rectangular groove on the inner side of the protective housing. A rubber strip is provided at the top of the front inner wall of the protective housing, and the light-transmitting glass on the front side of the detector body will be in close contact with the rubber strip when the detector body moves down.
[0009] The overall front-to-back length and left-to-right width of the lower guide post are equal to those of the upper guide post. Two L-shaped plates are provided on the left side of the main body of the detector, and the L-shaped plates on the left side of the main body of the detector can be tightly attached to the outer walls of the lower and upper guide posts.
[0010] The upper guide post has a circular groove at the bottom of both the front and rear sides, and after the positioning screw is tightened, its outer end face will be on the same vertical plane as the front and rear sides of the upper guide post.
[0011] The connecting shaft between the lower guide post and the upper guide post is located near the middle of the lower guide post and the upper guide post, and the connecting shaft is staggered with the L-shaped plate on the left side of the main body of the detector.
[0012] This utility model provides an automatic dimming and calibration device for automotive headlight detection, which has the following beneficial effects:
[0013] In this invention, the lower and upper guide columns can jointly provide sliding support for the main body of the detector. After use, the upper guide column can be rotated downwards and folded to the left side of the lower guide column, thus saving vertical space during storage. Moreover, the main body of the detector can be hidden in the protective shell for protection during storage. During the downward movement of the main body of the detector, the rubber strip on the inner side of the protective shell can also clean the dust on the light-transmitting glass on the front side of the main body of the detector, ensuring the light transmittance for the next use. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0016] In the attached diagram:
[0017] Figure 1 A schematic diagram of the overall structure of this application from the main axis side is shown;
[0018] Figure 2 A rear axle side schematic diagram of the overall structure of this application is shown;
[0019] Figure 3 A schematic diagram of the main shaft side after folding is shown;
[0020] Figure 4 This paper shows a schematic diagram of the structure of the protective casing after partial cross-section in this application;
[0021] Figure 5 A partial structural schematic diagram of the lower guide post and the upper guide post in this application is shown;
[0022] Figure 6 A partial structural schematic diagram of the upper guide post rotating in this application is shown;
[0023] List of reference numerals
[0024] 1. Base; 2. Lower guide post; 3. Upper guide post; 4. Protective housing; 5. Main body of the detector; 6. Drive motor; 7. Gear; 8. Positioning screw. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] Example 1: Please refer to Figures 1 to 6 :
[0027] This utility model proposes an automatic dimming and calibration device for automotive headlight detection, comprising: a base 1; two lower guide pillars 2 are fixed to the top left of the base 1 by welding, and a set of upper guide pillars 3 are rotatably mounted on the top of the two lower guide pillars 2. The base 1 is used to support the upper part of the device structure, and the lower guide pillars 2 and upper guide pillars 3 are used to provide sliding support for the detector body 5; a protective shell 4 is also fixed to the top of the base 1 by welding. When the detector body 5 is lowered to the bottom, it will be embedded inside the protective shell 4, thus the protective shell 4 can protect the detector body 5; the lower guide pillars 2 and upper guide pillars 3 are located on the right side. A detector body 5 is slidably mounted. Inside the detector body 5 is a drive motor 6. A gear 7 is mounted on one end of the main shaft of the drive motor 6. The detector body 5 is used to automatically adjust and calibrate the car headlights. When the height of the detector body 5 needs to be adjusted, the drive motor 6 can be controlled to drive the gear 7 to rotate. When the gear 7 rotates, it will roll on the rack surface on the lower guide post 2 and the upper guide post 3, thus driving the detector body 5 to move up and down. A positioning screw 8 is screwed to the bottom of the front and rear sides of the upper guide post 3. After the positioning screw 8 is tightened, the lower guide post 2 and the upper guide post 3 can be locked into a vertical state.
[0028] In this embodiment, as Figures 1-3 and Figure 5 and Figure 6 As shown, a rectangular protrusion plate is provided on the bottom of the front and rear sides of the upper guide post 3, and a corresponding rectangular notch is provided on the top of one side of the two lower guide posts 2. When in use, the upper guide post 3 can be rotated upward to a vertical position. At this time, the rectangular protrusion plate on the bottom of the front and rear sides of the upper guide post 3 will be embedded in the rectangular notch on the top of one side of the two lower guide posts 2. Then, the positioning screw 8 is passed through the round hole on the bottom of the front and rear sides of the upper guide post 3 and screwed into the threaded hole on the lower guide post 2. Thus, the lower guide post 2 and the upper guide post 3 can be locked in a vertical position.
[0029] In this embodiment, as Figure 1 and Figure 2 As shown, a vertical slot is provided between the lower guide posts 2 and between the upper guide posts 3. The gear 7 is located in the vertical slot. A rack is provided on one side of one of the lower guide posts 2, and a rack is also provided on one side of the slot in the middle of the upper guide post 3. The gear 7 meshes with the racks on the lower guide posts 2 and the upper guide posts 3. When it is necessary to adjust the height of the detector body 5, the drive motor 6 can be controlled to drive the gear 7 to rotate. When the gear 7 rotates, it will roll on the surface of the racks on the lower guide posts 2 and the upper guide posts 3, thus driving the detector body 5 to move up and down.
[0030] In this embodiment, as Figures 1-4 As shown, the inner side of the protective housing 4 is provided with a rectangular groove with an opening at the top. When the detector body 5 moves down to the bottom, it will be embedded in the rectangular groove inside the protective housing 4. A rubber strip is provided at the top of the front inner wall of the protective housing 4. When the detector body 5 moves down, the light-transmitting glass on its front side will be in close contact with the rubber strip. When the detector body 5 moves down, the rubber strip on the front inner wall of the protective housing 4 will contact the light-transmitting glass on the front side of the detector body 5. Therefore, the dust on the light-transmitting glass on the front side of the detector body 5 can be cleaned. Moreover, the protective housing 4 can protect the detector body 5.
[0031] In this embodiment, as Figures 1-4 As shown, the overall front-to-back length and left-to-right width of the lower guide post 2 are equal to the overall front-to-back length and left-to-right width of the upper guide post 3. Two L-shaped plates are provided on the left side of the main body 5 of the detector. The L-shaped plates on the left side of the main body 5 of the detector can be tightly attached to the outer walls of the lower guide post 2 and the upper guide post 3. When the main body 5 of the detector moves up and down, the two L-shaped plates on the left side will slide up and down on the outside of the lower guide post 2 and the upper guide post 3. Moreover, the L-shaped plates will always be tightly attached to the outer walls of the lower guide post 2 and the upper guide post 3, ensuring the stability of the main body 5 of the detector when it moves up and down.
[0032] In this embodiment, as Figure 1 , Figure 2 and Figure 5As shown, the connecting shaft between the lower guide post 2 and the upper guide post 3 is located near the middle of the lower guide post 2 and the upper guide post 3, and the connecting shaft is staggered with the L-shaped plate on the left side of the detector body 5. Therefore, when the detector body 5 moves up and down, the L-shaped plate on its left side will not collide with the connecting shaft, ensuring that the detector body 5 can be adjusted up and down normally.
[0033] Example 2, based on Example 1, such as Figures 1-6 As shown, a circular groove is provided at the bottom of the front and rear sides of the upper guide post 3. After the positioning screw 8 is tightened, its outer end face will be on the same vertical plane as the front and rear sides of the upper guide post 3. In use, the upper guide post 3 can be rotated upward to a vertical state, and then the positioning screw 8 can be passed through the circular holes at the bottom of the front and rear sides of the upper guide post 3 and screwed into the threaded holes on the lower guide post 2. Thus, the lower guide post 2 and the upper guide post 3 can be locked in a vertical state. At this time, one end of the positioning screw 8 will be located in the circular groove at the bottom of the front and rear sides of the upper guide post 3 and will not protrude outward. Therefore, it will not affect the L-shaped plate on the left side of the detector body 5 from sliding up and down on the outside of the lower guide post 2 and the upper guide post 3.
[0034] The working principle of this embodiment is as follows: When in use, the device can be placed on the ground supported by the base 1. When it is necessary to detect the headlights of a car, the upper guide post 3 can be rotated upwards to a vertical position. At this time, the rectangular protrusions on the bottom front and rear sides of the upper guide post 3 will be embedded into the rectangular notches on the top of one side of the two lower guide posts 2. Then, the positioning screws 8 are passed through the round holes on the bottom front and rear sides of the upper guide post 3 and screwed into the threaded holes on the lower guide posts 2. Thus, the lower guide posts 2 and the upper guide post 3 can be locked into a vertical position. Then, the detector body 5 is connected to an external power source, and the drive motor 6 can be controlled to drive the gear 7 to rotate forward. When the gear 7 rotates forward, it will roll upwards on the rack surfaces of the lower guide posts 2 and the upper guide posts 3, thus driving the detector body 5 to move upwards until it is adjusted to the detection height corresponding to the car headlights. Then, the drive motor 6 can be stopped. The self-locking function of the motor 6 can fix the height of the detector body 5. Then, the detector body 5 can automatically adjust and calibrate the car headlights. After use, the drive motor 6 can be controlled to drive the gear 7 to rotate in the opposite direction. When the gear 7 rotates in the opposite direction, it will roll downward on the rack surface on the lower guide post 2 and the upper guide post 3, thus driving the detector body 5 to a lower position. Finally, the detector body 5 will be embedded inside the protective shell 4. During this process, the rubber strip on the inner wall of the front side of the protective shell 4 will contact the light-transmitting glass on the front side of the detector body 5, thus cleaning the dust on the light-transmitting glass on the front side of the detector body 5. Moreover, the protective shell 4 can protect the detector body 5. Then, all two positioning screws 8 can be removed, and the upper guide post 3 can be rotated to the left to a vertical position, thereby reducing the overall height of the device for easy storage.
[0035] The following points should be noted in this article:
[0036] 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.
[0037] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.
Claims
1. An automatic dimming and calibration device for automotive light detection, comprising: The base (1) is characterized in that: two lower guide posts (2) are fixed on the top left side of the base (1) by welding, and a set of upper guide posts (3) are rotatably installed on the top of the two lower guide posts (2); a protective shell (4) is also fixed on the top of the base (1) by welding; a detector body (5) is slidably installed on the right side of the lower guide posts (2) and the upper guide posts (3), a drive motor (6) is installed inside the detector body (5), and a gear (7) is installed at one end of the main shaft of the drive motor (6); a positioning screw (8) is screwed onto the bottom of the front and rear sides of the upper guide post (3).
2. The automatic dimming and calibration device for automotive light detection according to claim 1, wherein, A vertical slot is provided between the lower guide posts (2) and between the upper guide posts (3). The gear (7) is located in the vertical slot. A rack is provided on one side of one of the lower guide posts (2), and a rack is also provided on one side of the slot in the middle of the upper guide post (3). The gear (7) meshes with the racks on the lower guide posts (2) and the upper guide posts (3).
3. The automatic dimming and calibration device for automotive light detection according to claim 1, wherein, The front-to-back overall length and left-to-right width of the lower guide post (2) are equal to the front-to-back overall length and left-to-right width of the upper guide post (3). Two L-shaped plates are provided on the left side of the main body (5) of the detector, and the L-shaped plates on the left side of the main body (5) of the detector can be tightly attached to the outer walls of the lower guide post (2) and the upper guide post (3).
4. The automatic dimming and calibration device for automotive light detection according to claim 1, wherein, The connecting shaft between the lower guide post (2) and the upper guide post (3) is located near the middle of the lower guide post (2) and the upper guide post (3), and the connecting shaft is staggered with the L-shaped plate on the left side of the detector body (5).
5. The automatic dimming and calibration device for automotive light detection according to claim 1, wherein, The upper guide post (3) has a rectangular protrusion plate on the bottom of both the front and rear sides, and the top of one side of the two lower guide posts (2) also has a corresponding rectangular notch.
6. The automatic dimming and calibration device for automotive headlight detection according to claim 1, characterized in that, The protective housing (4) has a rectangular groove with a top opening on the inner side. When the detector body (5) moves down to the bottom, it will be embedded in the rectangular groove inside the protective housing (4). A rubber strip is provided at the top of the front inner wall of the protective housing (4), and the light-transmitting glass on the front side of the detector body (5) will be in close contact with the rubber strip when it moves down.
7. The automatic dimming and calibration device for automotive light detection according to claim 1, wherein, The upper guide post (3) has a circular groove at the bottom of both the front and rear sides, and after the positioning screw (8) is tightened, its outer end face will be on the same vertical plane as the front and rear sides of the upper guide post (3).