A light detector

Abstract

The utility model discloses a light detection appearance, including mobile station and screw rod reciprocating lift, the reciprocating lift board of screw rod reciprocating lift is installed with the turnover structure, and the headlamp detection appearance is fixed on the rotary mounting plate of turnover structure. Turnover structure mainly comprises transmission case, drive motor, worm wheel and worm, and the headlamp detection appearance is driven to overturn through the worm wheel and worm pair. The key improvement lies in, and the headlamp detection appearance top is provided with the dust cover, and the dust cover is fixed on the screw rod reciprocating lift rack front end top through the connecting arm. In the non - working state, can control turnover structure and turn over the lens of headlamp detection appearance to the up, and through the screw rod reciprocating lift, make the lens part embed in the dust cover, form the airtight protection. The utility model can effectively prevent the optical lens from being contaminated, reduce the maintenance workload, and the worm wheel and worm mechanism has the self - locking function, can ensure that the appearance is stable after the posture of turning over positioning.

Description

Technical Field

[0001] This utility model relates to the field of automotive headlight testing technology, specifically a headlight testing instrument. Background Technology

[0002] As a crucial component for vehicle illumination during nighttime driving and in adverse weather conditions, automotive headlights directly impact driving safety with parameters such as luminous intensity and beam direction. Headlight testers are specialized devices used to inspect the performance of automotive headlights and are widely applied in motor vehicle safety technical inspections, repair and diagnostics, and other fields to ensure that headlights comply with relevant regulations and technical standards.

[0003] Existing headlight testing instruments typically include a moving platform, a lead screw jack, and the main body of the headlight testing instrument mounted on the reciprocating lifting plate of the lead screw jack. During use, the height of the headlight testing instrument is adjusted via the lead screw jack to align it with the headlight of the vehicle under test, thereby measuring parameters such as optical axis offset and luminous intensity.

[0004] However, existing headlight testers have the following shortcomings in practical use: the optical lenses of the headlight tester are exposed to the environment for a long time, making them prone to accumulating dust, oil, or other foreign matter. To ensure testing accuracy, operators need to frequently wipe and clean them with a cloth before each use, which not only increases the workload of maintenance and affects testing efficiency, but also may cause scratches on the lenses due to improper operation during the wiping process, affecting the service life of the instrument and the accuracy of measurements.

[0005] Therefore, we propose a light detector. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a light detector. By using a liftable dust cover in conjunction with a flip mechanism with a self-locking function, the optical lens of the detector can be automatically stored inside the dust cover during non-working periods. This achieves effective dust protection for the optical lens, reduces the workload of daily maintenance, and avoids lens damage caused by frequent wiping, effectively solving the problems in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a headlight detector, comprising a moving platform and a headlight detector, wherein a screw reciprocating jack is fixedly installed on the upper outer surface of the moving platform, and a flipping structure is fixedly installed on the front outer surface of the reciprocating plate in the screw reciprocating jack. The flipping structure includes a transmission box, a drive motor, a rotating mounting plate, a driven shaft, a worm gear, and a worm. The headlight detector is fixed on the front outer surface of the rotating mounting plate in the flipping structure. A dust cover is provided on the upper part of the headlight detector. The dust cover is located on the upper part of the front end of the screw reciprocating jack. Connecting arms are fixedly installed on both the left and right sides of the rear outer surface of the dust cover. The end of the connecting arm away from the dust cover is fixedly connected to the top of the front end of the frame in the screw reciprocating jack.

[0010] Preferably, the transmission box is fixed to the outer surface of the front end of the reciprocating lifting plate in the screw reciprocating jack, and the rotating mounting plate is located at the front end of the transmission box.

[0011] Preferably, the drive motor is fixed to one end of the upper outer surface of the transmission box, the worm gear and the worm are both located inside the transmission box, a coupling is provided between the worm and the drive motor, and the upper outer surface of the worm is fixedly connected to the outer surface of one end of the output shaft of the drive motor through the coupling.

[0012] Preferably, the middle part of the outer surface of the rear end of the rotating mounting plate is fixedly connected to the outer surface of the front end of the driven shaft, and the rear end of the driven shaft extends into the interior of the transmission box, with the worm gear fixed to the outer wall of the rear end of the driven shaft.

[0013] Preferably, bearings are provided between the worm gear, the driven shaft, and the transmission box, and the worm gear and the driven shaft are rotatably connected to the transmission box through the bearings.

[0014] Preferably, the worm and the worm wheel mesh with each other, and the lead angle of the worm is less than or equal to the equivalent friction angle when it meshes with the worm wheel.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a light detector with the following advantages:

[0017] 1. This headlight detector, by setting a dust cover fixedly connected to a lead screw reciprocating lift mechanism, allows the lens to face upwards after the headlight detector is used. Then, the lifting mechanism raises the detector body with the lens end and embeds it into the dust cover, forming a sealed protective space. This effectively isolates the optical lens of the detector from the external environment during non-working periods, preventing the accumulation of dust and oil. This fundamentally reduces the frequency of daily wiping and cleaning, saving manpower and resources, reducing the risk of lens scratches caused by frequent wiping, and extending the service life of the equipment.

[0018] 2. In this headlight detector, the flipping structure employs a transmission mechanism consisting of a worm gear and a worm, with the lead angle of the worm specifically limited to be less than or equal to the equivalent friction angle when it meshes with the worm gear. This ensures that the transmission pair has reliable self-locking performance. When the drive motor stops running, the inherent reverse self-locking characteristic of the worm gear transmission can effectively prevent the worm gear from rotating due to external forces, thereby ensuring that the headlight detector can remain stable after flipping to any angle, avoiding positional changes caused by structural loosening during lifting, lowering, or stationary processes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a light detector according to the present invention.

[0020] Figure 2 This is a schematic diagram of the flip structure and the headlight detector in a light detector according to the present invention.

[0021] Figure 3 This is a schematic diagram of the bottom structure of the dust cover and connecting arm in a light detector according to this utility model.

[0022] Figure 4 This is a partial structural schematic diagram of a light detector according to the present invention.

[0023] Figure 5 This is a schematic diagram of the drive motor and worm gear in a light detector according to the present invention.

[0024] In the diagram: 1. Moving platform; 2. Screw reciprocating jack; 3. Reciprocating lifting plate; 4. Headlight tester; 5. Dust cover; 6. Connecting arm; 7. Tilting structure; 8. Transmission box; 9. Drive motor; 10. Rotary mounting plate; 11. Driven shaft; 12. Worm gear; 13. Worm. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-5 As shown, this utility model provides a headlight detector, mainly used for detecting parameters such as luminous intensity and optical axis offset of automotive headlights. Figure 1 As shown, the headlight testing instrument mainly includes a moving platform 1, a screw reciprocating jack 2, and a headlight testing instrument 4. The moving platform 1 supports the entire device and facilitates its movement and positioning. The screw reciprocating jack 2 is fixedly mounted on the upper outer surface of the moving platform 1 via a mounting base at its bottom. Inside the frame of the screw reciprocating jack 2 is a screw and nut mechanism driven by a motor, which drives the reciprocating lifting plate 3 in front of it to move vertically up and down.

[0027] One of the core improvements of this utility model lies in the inclusion of a flip-up structure 7 and a dust cover 5. For example... Figure 2 and Figure 4 As shown, the flipping structure 7 is fixedly mounted on the front outer surface of the reciprocating lifting plate 3 of the screw reciprocating jack 2 via the rear end face of its transmission box 8. The headlight detector 4 is fixedly mounted on the front outer surface of the rotating mounting plate 10 of the flipping structure 7.

[0028] The specific structure of the flip structure 7 is as follows: it includes a sealed transmission box 8, a drive motor 9, a rotating mounting plate 10, a driven shaft 11, a worm gear 12, and a worm 13. The transmission box 8 serves as a housing to support and accommodate other transmission components. The drive motor 9 is fixedly mounted on one end of the upper outer surface of the transmission box 8 (e.g., ...). Figure 2 (As shown). Both the worm gear 13 and the worm wheel 12 are housed inside the transmission housing 8. The upper end of the worm gear 13 is fixedly connected to the lower end of the output shaft of the drive motor 9 via a coupling, thereby realizing power transmission. The driven shaft 11 is rotatably supported on the transmission housing 8 by bearings, and its axial direction is basically horizontal. The middle part of the rear outer surface of the rotating mounting plate 10 is fixedly connected to the front outer surface of the driven shaft 11, so that the rotation of the driven shaft 11 can directly drive the rotating mounting plate 10 to rotate synchronously. The worm wheel 12 is fixed to the rear outer wall of the driven shaft 11 located inside the transmission housing 8.

[0029] To ensure smooth transmission and a self-locking function, the worm 13 and worm wheel 12 mesh together to form a worm gear pair. Furthermore, the lead angle of the worm 13 is designed to be less than or equal to its equivalent friction angle when meshing with the worm wheel 12. This gives the worm gear pair a reliable reverse self-locking characteristic; that is, when the drive motor 9 stops working, the external torque acting on the worm wheel 12 (and the headlight detector 4 connected to it) cannot reverse the rotation of the worm 13, thus reliably locking the headlight detector 4 at any tilt angle.

[0030] like Figure 1 and Figure 3As shown, the dust cover 5 is positioned above the headlight detector 4. Its specific position corresponds to the position where, when the flip structure 7 flips the detector lens (the end containing the optical lens) of the headlight detector 4 to an upward orientation, the detector lens can be inserted into the dust cover 5 during the lifting and lowering motion. The dust cover 5 preferably adopts a hollow interior and an open bottom structure (as shown in the attached instruction manual). Figure 3 As shown in the figure, its shape is adapted to the detection head of the headlight detector 4. Connecting arms 6 are fixedly installed on both the left and right sides of the rear outer surface of the dust cover 5. The ends of these two connecting arms 6 away from the dust cover 5 are fixedly connected to the left and right sides of the top front end of the frame of the screw reciprocating jack 2, thereby stably suspending the dust cover 5 at a predetermined height.

[0031] The working principle and usage process of this utility model are as follows:

[0032] In the detection working state:

[0033] First, the screw reciprocating jack 2 is controlled to operate, driving the reciprocating lifting plate 3, the tilting structure 7 mounted on it, and the headlight tester 4 to descend as a whole, so that the testing head of the headlight tester 4 is removed from the dust cover 5. Then, the drive motor 9 of the tilting structure 7 is started, driving the worm gear 13 to rotate. Through the meshing transmission of the worm wheel 12, the driven shaft 11 and the rotating mounting plate 10 are driven to rotate, thereby tilting the headlight tester 4 to the required testing posture (usually the testing lens is horizontally facing forward, aligned with the headlight of the vehicle under test). Due to the self-locking effect of the worm gear pair, the headlight tester 4 can be stably maintained at this working angle. Subsequently, the position of the equipment can be adjusted by the moving table 1, and the height of the headlight tester 4 can be finely adjusted using the screw reciprocating jack 2 to align it with the headlight under test, so that various optical parameters can be tested.

[0034] In non-working (stored or standby) state:

[0035] After the test is completed, the drive motor 9 of the flipping structure 7 is first reversed. Through the transmission of the worm gear 12 and worm 13, the rotating mounting plate 10 is driven to rotate the headlight detector 4 by about 90 degrees, so that its detection lens (optical lens end) is turned vertically upward. Then, the lead screw reciprocating lift 2 is controlled to run, driving the reciprocating lift plate 3 to rise, which moves the headlight detector 4, which is in the flipped position, upward until its detection head (lens part) is completely embedded and accommodated in the internal cavity of the dust cover 5. At this time, the dust cover 5 acts like a "hat" to cover the most critical optical components of the headlight detector 4, effectively isolating it from dust, oil, moisture and other potential pollutants in the external environment.

[0036] Through the above operations, this utility model provides active and reliable protection for the optical lens of the headlight tester 4 during non-use periods, reducing the frequency and workload of daily maintenance and cleaning, while avoiding the risk of lens scratches caused by frequent or improper wiping, which helps to maintain the measurement accuracy of the test instrument and extend its service life in the long term.

[0037] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A headlight detector, comprising a moving platform (1) and a headlight detector (4), wherein a screw reciprocating lift (2) is fixedly mounted on the upper outer surface of the moving platform (1), characterized in that: A flipping structure (7) is fixedly installed on the front outer surface of the reciprocating lifting plate (3) in the screw reciprocating jack (2). The flipping structure (7) includes a transmission box (8), a drive motor (9), a rotating mounting plate (10), a driven shaft (11), a worm gear (12), and a worm (13). The headlight detector (4) is fixed on the front outer surface of the rotating mounting plate (10) in the flipping structure (7). A dust cover (5) is provided on the upper part of the headlight detector (4). The dust cover (5) is located on the upper part of the front end of the screw reciprocating jack (2). Connecting arms (6) are fixedly installed on both the left and right sides of the rear outer surface of the dust cover (5). The end of the connecting arm (6) away from the dust cover (5) is fixedly connected to the top of the front end of the frame in the screw reciprocating jack (2).

2. The light detector according to claim 1, characterized in that: The transmission box (8) is fixed on the front end outer surface of the reciprocating lifting plate (3) in the screw reciprocating jack (2), and the rotating mounting plate (10) is located at the front end of the transmission box (8).

3. A light detector according to claim 2, characterized in that: The drive motor (9) is fixed at one end of the upper outer surface of the transmission box (8). The worm wheel (12) and the worm (13) are both located inside the transmission box (8). A coupling is provided between the worm (13) and the drive motor (9). The upper outer surface of the worm (13) is fixedly connected to the outer surface of one end of the output shaft of the drive motor (9) through the coupling.

4. A light detector according to claim 3, characterized in that: The middle part of the outer surface of the rear end of the rotating mounting plate (10) is fixedly connected to the outer surface of the front end of the driven shaft (11), and the rear end of the driven shaft (11) extends into the interior of the transmission box (8), and the worm gear (12) is fixed to the outer wall of the rear end of the driven shaft (11).

5. A light detector according to claim 4, characterized in that: Bearings are provided between the worm (13), the driven shaft (11) and the transmission box (8), and the worm (13) and the driven shaft (11) are rotatably connected to the transmission box (8) through the bearings.

6. A light detector according to claim 5, characterized in that: The worm (13) meshes with the worm wheel (12), and the lead angle of the worm (13) is less than or equal to the equivalent friction angle when it meshes with the worm wheel (12).

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