A light adjusting structure and a vehicle lamp thereof

Abstract

The utility model provides a kind of car light including light adjusting structure, light adjusting structure includes reflecting bowl and light source, the back of reflecting bowl is provided with a plurality of first fixed seat and second fixed seat, first fixed seat is provided with the ball head seat connected with ball head screw on car light lamp shell, second fixed seat is provided with the light adjusting mechanism connected with car light lamp shell;Light adjusting mechanism includes connecting seat, clamping part, adjusting screw rod and open blocking ring, connecting seat is installed in second fixed seat, clamping part is clamped in the clamping interface of being provided with in connecting seat, adjusting screw rod is rotatably set on car light lamp shell, and it is threadedly connected with the threaded hole of being opened in clamping part by its screw rod portion, and the end portion of screw rod portion that passes out threaded hole is provided with a circle of recess, open blocking ring is clamped in recess, rotating adjusting screw rod changes its threaded cooperation feeding depth with clamping part and drives reflecting bowl position to change, and limit and prevent from falling off by open blocking ring.The utility model can effectively solve the problems in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a dimming structure and its automotive lighting. Background Technology

[0002] The standard clearly stipulates that headlights and fog lights should have beam adjustment devices. Currently, most dimming mechanisms on the market are located at the rear of the light fixture, requiring the hood to be opened and dimming tools used to adjust the beam when adjusting the lights in a car. For example, Chinese Patent No. 2023226632159 discloses a dimming structure for a vehicle light, including a reflector and a light source. Several fixed seats connected to the headlight housing are provided on the back of the reflector, with at least one fixed seat housing a dimming mechanism. The dimming mechanism includes a connecting seat, a connecting member, and an adjusting screw. One end of the connecting seat is fixedly connected to the fixed seat, and the connecting member is located at the other end of the connecting seat. Rotating the adjusting screw changes the threaded engagement depth with the headlight housing, thereby changing the position of the reflector. The adjusting screw is indirectly connected through the connecting seat and the connecting member, providing a buffer even under vibration, avoiding wear caused by rigid connections, and offering better vibration resistance. However, this dimming structure has the following problems in use: 1. The adjusting screw head in this dimming mechanism lacks a limit function. During rotation, if the travel of the connecting part exceeds the thread travel of the adjusting screw, the adjusting screw will disengage from the connecting part. Without external force, the connecting part cannot return to the threaded area of ​​the adjusting screw, causing the lamp to fail to dim. 2. One end of the connecting seat is fixed and constrained by a single screw, while the other end moves up and down with the connecting part, transmitting force and creating a significant lever-like shear force. Long-term or frequent stress can easily lead to breakage and deformation. 3. The ball joint in this structure is designed to facilitate the ball head entering its internal ball joint cavity. However, if the ball head is subjected to excessive force during dimming, it is also prone to detaching from the ball joint. 4. For some lamps with decorative structures or signal optical units on the top, due to the large number of functions distributed on the top, the high beam optical unit, low beam optical unit, or high and low beam optical unit are all located downwards. As a result, the dimming mechanism on it is far from the top of the lamp, and there is an obstruction structure above the dimming mechanism. When adjusting the beam, it is not possible to quickly insert the dimming tool into the adjustment position, which greatly reduces the efficiency of the dimming operation. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a dimming mechanism and its vehicle headlight, which can effectively solve the problems existing in the prior art.

[0004] This utility model is achieved through the following technical solution: A dimming structure includes a reflector bowl and a light source. A light source holder is mounted on the reflector bowl, and the light source is fixed to the reflector bowl via the light source holder, with the light-emitting portion of the light source positioned on the reflective surface of the reflector bowl. Several first and second fixing seats are provided on the back of the reflector bowl. A ball-head screw connected to a head screw on a headlight housing is mounted on the first fixing seat, and a dimming mechanism connected to the headlight housing is mounted on the second fixing seat. The dimming mechanism includes a connecting seat, a snap-fit ​​component, an adjusting screw, and an open retaining ring. The connecting seat is mounted on the second fixing seat, and the snap-fit ​​component snaps into a snap-fit ​​interface on the connecting seat. The adjusting screw is rotatably mounted on the headlight housing and threadedly connected to a threaded hole in the snap-fit ​​component via its threaded rod. A groove is provided at the end of the threaded rod extending out of the threaded hole, and the open retaining ring snaps into the groove. Rotating the adjusting screw changes the feed depth of its threaded engagement with the snap-fit ​​component, causing a change in the position of the reflector bowl, which is then prevented from disengaging by the open retaining ring.

[0005] Furthermore, according to a dimming structure of the present invention, the first fixing seat is integrally disposed on the back of the reflector bowl. The first fixing seat includes a screw post and a limiting ring. The screw post is used to fix the ball head seat on the first fixing seat, and the limiting ring is used to radially limit the outer periphery of the ball head seat.

[0006] Furthermore, according to a dimming structure of this utility model, the connecting seat is rectangular and made of plastic material, with a snap-fit ​​interface in the middle and mounting holes at all four corners; the second fixing seat is integrally disposed on the back of the reflector bowl, the second fixing seat includes a support foot and a mounting frame, the support foot is disposed on the back of the reflector bowl, the support foot has a horizontal mounting surface, the mounting frame is disposed on the horizontal mounting surface, and each of the four corners has a fixing post corresponding to the mounting hole, a screw is used to pass through the mounting hole and connect to the fixing post, thereby fixing the connecting seat to the mounting frame; the mounting frame has a first clearance opening, the first clearance opening is used to expose the groove for the insertion of the opening retaining ring.

[0007] Furthermore, according to a dimming structure of the present invention, the horizontal mounting surface is provided with a second clearance opening, and the inner diameter of the second clearance opening is larger than the outer diameter of the opening retaining ring.

[0008] Furthermore, according to a dimming structure of the present invention, the dimming mechanism further includes an adjustment adapter mechanism, which includes an adapter shaft, a first fixing plate, and a second fixing plate. One end of the adapter shaft is provided with an adjustment wheel, and the other end of the adapter shaft is provided with an adapter gear. The adapter gear is used to mesh with an adjustment screw, and the adjustment wheel is used to connect with an external dimming tool. The first fixing plate and the second fixing plate are used to rotatably mount the adapter shaft on the headlight housing.

[0009] Furthermore, according to a dimming structure of this utility model, the adapter shaft is a split component consisting of an adjusting wheel, an adapter gear, and a shaft body. One end of the shaft body is fixedly mounted with the adjusting wheel via an interference fit, and the other end is fixedly mounted with the adapter gear via an interference fit. The first fixing plate is used to rotatably mount the adapter gear on the headlight housing, and the second fixing plate is used to rotatably mount the adjusting wheel on the headlight housing.

[0010] Furthermore, according to a dimming structure of this utility model, the first fixing plate is composed of an upper fixing plate and a lower fixing plate with identical structures. The upper fixing plate covers the upper fixing plate to form a tubular structure, and extension platforms are distributed on both sides of the tubular structure. Connection holes are provided on the extension platforms. A limiting boss is provided on the inner wall of the tubular structure. One end of the adapter gear connected to the shaft is located in the tubular structure, and the adapter gear cooperates with the limiting boss through a positioning groove provided on its outer periphery, limiting the axial movement of the adapter gear, thereby rotatably mounting the adapter gear on the first fixing plate.

[0011] Furthermore, according to a dimming structure of this utility model, the upper fixing plate covers the lower fixing plate, and the two are connected by a limiting mechanism. The limiting mechanism includes a limiting post and a limiting hole. The limiting post is inserted into the limiting hole, thereby limiting the upper fixing plate above the lower fixing plate. The upper fixing plate and the lower fixing plate are connected by a snap-fit ​​mechanism. The snap-fit ​​mechanism includes a snap-fit ​​buckle and a snap-fit ​​groove. The snap-fit ​​buckle is engaged in the snap-fit ​​groove, thereby snapping the upper fixing plate above the lower fixing plate.

[0012] Furthermore, according to a dimming structure of this utility model, a bushing is provided in the middle of the second fixed plate, and extension wings are provided on both sides of the outer periphery of the bushing, with connecting holes provided on the extension wings; a plurality of ring-shaped buckles are provided at one end of the inner surface of the bushing, which are used to fit into a ring of grooves provided on the outer periphery of the adjusting wheel, thereby rotatably mounting the adjusting wheel on the second fixed plate; a ring of support platforms is provided at the other end of the inner surface of the bushing, which are used to support the shaft.

[0013] A vehicle headlight, including the dimming structure described above.

[0014] This utility model features a simple structure and convenient, quick installation. The adjusting screw, secured by an open retaining ring within a groove, abuts against the retaining element during dimming, preventing the threaded rod from detaching and avoiding dimming failure. The connecting seat is fixed to the second fixing seat via mounting holes at the four corners and screws, ensuring balanced force distribution and preventing damage caused by deformation during dimming due to uneven installation, thus further extending the lifespan of the connecting seat. During dimming, the ball head screw pulls on the ball head, and the ball head seat experiences an outward force. This outward force is counteracted by a limiting ring, ensuring the ball head seat maintains its clamping hold on the ball head, reducing the risk of detachment. The adjustable adapter mechanism addresses the problem of the dimming mechanism being too far from the top of the lamp and having an obstruction above it, making it difficult to quickly insert the dimming tool to the adjustment position when adjusting the beam, significantly reducing the efficiency of dimming operations.

[0015] It can effectively solve the problems existing in the current technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rear structure of the vehicle light in this utility model.

[0017] Figure 2 This is a schematic diagram of the dimming structure in this utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the dimming structure in this utility model. Figure 2 .

[0019] Figure 4 This is an exploded view of the dimming structure in this utility model.

[0020] Figure 5 This is a schematic diagram of the adjusting and connecting mechanism in this utility model.

[0021] Figure 6 This is an exploded view of the adjusting and connecting mechanism in this utility model.

[0022] Figure 7 This is a partial cross-sectional view of the dimming structure of this utility model when it is installed inside the headlight housing.

[0023] In the picture: The components include: a dimming structure 10, a reflector bowl 1, a light source holder 11, a reflective surface 12, a first fixing seat 13, a screw post 131, a limiting ring 132, a second fixing seat 14, a support foot 141, a horizontal mounting surface 1411, a mounting frame 142, a fixing post 1421, a light source 2, a ball head screw 3, a ball head seat 4, a dimming mechanism 5, a connecting seat 51, a snap-fit ​​interface 511, a mounting hole 512, a snap-fit ​​component 52, an adjusting screw 53, a threaded rod portion 531, a groove 5311, a mounting portion 532, a rotating gear disc 533, an open retaining ring 54, a connecting rib 6, a first clearance opening 7, and a second clearance opening 8. Adjustable adapter mechanism 9, adapter shaft 91, adjusting wheel 911, slot 9111, adapter gear 912, positioning slot 9121, shaft body 913, first fixing plate 92, upper fixing plate 921, longitudinal half tube 9211, extension platform 9212, limiting boss 9213, lower fixing plate 922, second fixing plate 93, bushing 931, extension wing 932, buckle 9311, support platform 9312, connecting hole 10, vehicle lamp housing 20, connecting post 201, limiting mechanism 30, limiting post 301, limiting hole 302, snap-fit ​​mechanism 40, snap-fit ​​buckle 401, snap-fit ​​groove 402. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] according to Figures 1-7As shown, a vehicle headlight includes a dimming structure 10; the dimming structure 10 referred to here is the dimming structure of this utility model. The dimming structure 10 includes a reflector bowl 1 and a light source 2. A light source holder 11 is provided on the reflector bowl 1, and the light source 2 is fixed on the reflector bowl 1 through the light source holder 11, such that the light-emitting part of the light source 2 is located at the position of the reflective surface 12 on the front of the reflector bowl 1. Several first fixing seats 13 and second fixing seats 14 are provided on the back of the reflector bowl 1. A ball head seat 4 connected to the ball head screw 3 on the headlight housing 20 is provided on the first fixing seat 13, and a dimming mechanism 5 connected to the headlight housing 20 is provided on the second fixing seat 14. The dimming mechanism 5 includes a connecting seat 51, a snap-fit ​​part 52, an adjusting screw 53, and an opening. A retaining ring 54 and a connecting seat 51 are installed on the second fixed seat 14. A snap-fit ​​member 52 snaps into the snap-fit ​​interface 511 provided on the connecting seat 51. An adjusting screw 53 is rotatably mounted on the headlight housing 20 and is threadedly connected to the threaded hole of the snap-fit ​​member 52 through its threaded rod portion 531. A groove 5311 is provided at the end of the threaded rod portion 531 that protrudes from the threaded hole. An open retaining ring 54 is snapped into the groove 5311. Rotating the adjusting screw 53 changes the feed depth of its threaded engagement with the snap-fit ​​member 52, thereby changing the position of the reflector bowl 1. The open retaining ring 54 limits and prevents it from falling off. Specifically, the reflector bowl 1 can be a high beam function, a low beam function, a combination of high and low beam functions, and a front fog light function. When it is a front fog light function, two first fixed seats 13 and one second fixed seat 14 are provided on the back of the reflector bowl 1. The first fixed seat 13 is provided with a ball joint seat 4, and the second fixed seat 14 is provided with a dimming mechanism 5. When the high beam, low beam, or both high and low beam functions are activated, a first fixing seat 13 and two second fixing seats 14 are provided on the back of the reflector bowl 1. The first fixing seat 13 is provided with a ball head seat 4, and the second fixing seats 14 are provided with a dimming mechanism 5. In this embodiment, the adjusting screw 53 is an integral part including a threaded rod portion 531, a mounting portion 532, and a rotating gear 533. The rotating gear 533 is located at the top of the mounting portion 532, and the threaded rod portion 531 is located at the bottom of the mounting portion 532. The adjusting screw 53 is rotatably mounted on the headlight housing 20 through the mounting portion 532. This is prior art and will not be described in detail here. The adjusting screw 53 is threadedly connected to the threaded hole of the snap-fit ​​member 52 through the threaded rod portion 531. A groove 5311 is provided at the end of the threaded rod portion 531 that protrudes from the threaded hole. An open retaining ring 54 is snapped into the groove 5311. The open retaining ring 54 is a stainless steel E-shaped open retaining ring. Rotating the adjusting screw 53 causes it to contact the retaining ring 54, preventing the threaded rod 531 from disengaging from the retaining ring 52 and avoiding dimming failure.

[0026] To prevent the ball head on the ball head screw 3 from detaching from the ball head seat 4 due to stress during dimming, a first fixing seat 13 is integrally disposed on the back of the reflector bowl 1. The first fixing seat 13 includes a screw post 131 and a limiting ring 132. The screw post 131 is used to fix the ball head seat 4 on the first fixing seat 13, and the limiting ring 132 is used to radially limit the outer periphery of the ball head seat 4. In this embodiment, the first fixing seat 13 is integrally disposed on the back of the reflector bowl 1. The first fixing seat 13 includes a screw post 131 and a limiting ring 132. The screw post 131 is disposed inside the limiting ring 132, and the two are coaxial. The height of the screw post 131 is lower than that of the limiting ring 132, thereby forming a recessed structure at the top of the limiting ring 132. The ball head seat 4 is placed in the recessed structure and fixed to the screw post 131 by screws. The limiting ring 132 radially limits the ball head seat 4. During dimming, the ball head screw 3 is pulled by force, and the ball head seat 4 is subjected to an outward force. At this time, the limiting ring 132 restrains and counteracts this outward force, so that the ball head seat 4 always keeps clamping the ball head, thereby reducing the risk of the ball head separating from the ball head seat 4. In order to improve the structural strength of the screw post 131 and the limiting ring 132, several connecting ribs 6 are provided between the screw post 131 and the limiting ring 132. The connecting ribs 6 increase the structural strength of both and further improve the stability of the structure.

[0027] Furthermore, the connecting seat 51 is rectangular and made of plastic material, with a card interface 511 in the middle and mounting holes 512 at each of the four corners; the second fixing seat 14 is integrally set on the back of the reflector bowl 1. The second fixing seat 14 includes a support foot 141 and a mounting frame 142. The support foot 141 is set on the back of the reflector bowl 1 and extends to one side. A horizontal mounting surface 1411 is provided on the support foot 141. The mounting frame 142 is set on the horizontal mounting surface 1411, and a fixing post 1421 corresponding to the mounting hole 512 is provided at each of the four corners. Screws are used to pass through the mounting hole 512 and connect to the fixing post 1421, thereby fixing the connecting seat 51 to the mounting frame 142; the mounting frame 142 is provided with a first clearance opening 7, which is used to expose the groove 5311 to facilitate the insertion of the opening retaining ring 54. The connecting seat 51 is fixed to the second fixed seat 14 by screws through the mounting holes 512 at the four corners, so that the force is evenly distributed around the four sides, preventing damage caused by deformation of the connecting seat 51 during dimming due to single installation, and further improving the service life of the connecting seat 51. In this embodiment, in order to improve the structural strength of the second fixed seat 14, the height of the mounting frame 142 is set to be relatively short. During dimming, the horizontal mounting surface 1411 may come into contact with the end of the adjusting screw 53, resulting in insufficient dimming angle. A second clearance opening 8 is provided on the horizontal mounting surface 1411, and the inner diameter of the second clearance opening 8 is larger than the outer diameter of the opening retaining ring 54, so that the opening retaining ring 54 can smoothly enter and exit the second clearance opening 8 when the position of the reflector bowl 1 changes. The snap-fit ​​part 52 is made of nylon material, which has better stability when snap-fitted with the connecting seat 51.

[0028] To address the problem that the dimming mechanism 5 is far from the top of the lamp and has an obstruction structure above it, making it difficult to quickly insert the dimming tool into the adjustment position when adjusting the beam, thus greatly reducing the efficiency of the dimming operation, the dimming mechanism 5 also includes an adjustment adapter mechanism 9. The adjustment adapter mechanism 9 includes an adapter shaft 91, a first fixing plate 92, and a second fixing plate 93. One end of the adapter shaft 91 is provided with an adjustment wheel 911, and the other end of the adapter shaft 91 is provided with an adapter gear 912. The adapter gear 912 is used to mesh with the adjustment screw 53, and the adjustment wheel 911 is used to connect with an external dimming tool. The first fixing plate 92 and the second fixing plate 93 are used to rotatably mount the adapter shaft 91 on the lamp housing 20. Specifically, to facilitate adaptation to different distances, the adapter shaft 91 is a split component consisting of an adjusting wheel 911, an adapter gear 912, and a shaft body 913. The shaft body 913 can be selected in length as needed. One end of the shaft body 913 is fixedly mounted with the adjusting wheel 911 by interference fit, and the other end is fixedly mounted with the adapter gear 912 by interference fit. The first fixing plate 92 is used to rotatably mount the adapter gear 912 on the headlight housing 20, and the second fixing plate 93 is used to rotatably mount the adjusting wheel 911 on the headlight housing 20. In this embodiment, the drive shaft 913 is made of stainless steel, and the adjusting wheel 911 and the adapter gear 912 are both made of nylon. The ends of the adjusting wheel 911 and the adapter gear 912 connected to the drive shaft 913 are provided with inner holes. The two ends of the drive shaft 913 are respectively interference-fitted with the inner holes on the adapter gear 912 and the drive shaft 913, thereby fixing them on the drive shaft 913. The drive shaft 913 meshes with the rotating gear 533 on the adjusting screw 53 through the adapter gear 912. It is connected to the external dimming tool through the screw groove provided in the adjusting wheel 911.

[0029] Furthermore, the first fixing plate 92 is composed of an upper fixing plate 921 and a lower fixing plate 922 with the same structure. The upper fixing plate 921 covers the lower fixing plate 922, and a tubular structure is formed between the two. Extension platforms 9212 are distributed on both sides of the tubular structure, and connection holes 10 are provided on the extension platforms 9212. A limiting boss 9213 is provided on the inner wall of the tubular structure. One end of the adapter gear 912 connected to the shaft 913 is located in the tubular structure, and the adapter gear 912 cooperates with the limiting boss 9213 through a positioning groove 9121 provided on the outer periphery, which limits the axial movement of the adapter gear 912, thereby rotatably mounting the adapter gear 912 on the adapter shaft 91 to the first fixing plate 92. Specifically, a longitudinal half-tube 9211 is provided in the middle of the upper fixing plate 921. The two sides of the top opening of the longitudinal half-tube 9211 extend outward to form extension platforms 9212. A connecting hole 10 is provided on the extension platform 9212. A limiting boss 9213 is provided on the inner surface of the longitudinal half-tube 9211. In order to improve the accuracy of the installation position and the installation efficiency, the upper fixing plate 921 covers the lower fixing plate 922. The two are connected by a limiting mechanism 30. The limiting mechanism 30 includes a limiting post 301 and a limiting hole 302. The limiting post 301 is inserted into the limiting hole 302, thereby limiting the upper fixing plate 921 above the lower fixing plate 922. The upper fixing plate 921 and the lower fixing plate 922 are connected by a snap-fit ​​mechanism 40. The snap-fit ​​mechanism 40 includes a snap-fit ​​buckle 401 and a snap-fit ​​groove 402. The snap-fit ​​buckle 401 is snapped into the snap-fit ​​groove 402, thereby snapping the upper fixing plate 921 onto the lower fixing plate 922. In this embodiment, one end of the adapter gear 912 connected to the shaft 913 is located in the longitudinal half-tube 9211 inside the lower fixed plate 922. The upper fixed plate 921 covers the upper fixed plate 922. At this time, the upper fixed plate 921 and the lower fixed plate 922 are limited by the limiting mechanism 30 and connected by the snap-fit ​​mechanism 40, thereby fixing the upper fixed plate 921 on the lower fixed plate 922. The adapter gear 912 cooperates with the limiting boss 9213 through the positioning groove 9121 to limit axial movement, thereby rotatably mounting the adapter gear 912 on the adapter shaft 91 onto the first fixed plate 92. At the same time, the toothed portion of the adapter gear 912 that meshes with the rotating gear disk 533 is exposed on the first fixed plate 92, which facilitates meshing with the rotating gear disk 533.

[0030] Furthermore, a bushing 931 is provided in the middle of the second fixing plate 93, and extension wings 932 are provided on both sides of the outer periphery of the bushing 931. Connection holes 10 are provided on the extension wings 932. One end of the inner surface of the bushing 931 is provided with a plurality of ring-shaped buckles 9311, which are used to fit with a ring of grooves 9111 provided on the outer periphery of the adjusting wheel 911, so that the adjusting wheel 911 on the adapter shaft 91 can be rotatably installed on the second fixing plate 93. The other end of the inner surface of the bushing 931 is also provided with a ring of support platform 9312, which supports the shaft 913 to prevent shaking. In this embodiment, both the first fixing plate 92 and the second fixing plate 93 can be first installed on the adapter shaft 91 to form a complete adjustment adapter mechanism 9. Later, when installed on the headlight housing 20, it is only necessary to use screws to pass through the connecting hole 10 and connect to the connecting post 201 provided on the headlight housing 20 to complete the installation of the adjustment adapter mechanism 9. The installation is convenient and quick.

Claims

1. A dimming structure, comprising a reflector bowl and a light source, wherein a light source holder is disposed on the reflector bowl, the light source is fixed on the reflector bowl via the light source holder, and the light-emitting portion of the light source is located at the reflective surface of the front of the reflector bowl; characterized in that, The back of the reflector is provided with several first and second fixing seats. The first fixing seat is provided with a ball head seat that is connected to the ball head screw on the headlight housing. The second fixing seat is provided with a dimming mechanism connected to the headlight housing. The dimming mechanism includes a connecting seat, a snap-fit ​​component, an adjusting screw, and an open retaining ring. The connecting seat is installed on the second fixing seat. The snap-fit ​​component snaps into a snap-fit ​​interface provided on the connecting seat. The adjusting screw is rotatably mounted on the headlight housing and is threadedly connected to a threaded hole in the snap-fit ​​component through its threaded rod. The end of the threaded rod that protrudes from the threaded hole is provided with a groove. The open retaining ring is snapped into the groove. Rotating the adjusting screw changes the feed depth of its threaded engagement with the snap-fit ​​component, thereby changing the position of the reflector. The open retaining ring limits and prevents it from falling off.

2. The dimming structure according to claim 1, characterized in that, The first fixing seat is integrally disposed on the back of the reflector bowl. The first fixing seat includes a screw post and a limiting ring. The screw post is used to fix the ball head seat on the first fixing seat, and the limiting ring is used to radially limit the outer periphery of the ball head seat.

3. The dimming structure according to claim 1, characterized in that, The connecting base is rectangular and made of plastic, with a snap-fit ​​interface in the center and mounting holes at all four corners. The second fixing base is integrally mounted on the back of the reflector bowl. The second fixing base includes a support foot and a mounting frame. The support foot is located on the back of the reflector bowl and has a horizontal mounting surface. The mounting frame is located on the horizontal mounting surface and has fixing posts at each of the four corners corresponding to the mounting holes. Screws are passed through the mounting holes and connected to the fixing posts to fix the connecting base to the mounting frame. The mounting frame has a first clearance opening for exposing the groove for inserting the opening retaining ring.

4. The dimming structure according to claim 3, characterized in that, The horizontal mounting surface has a second clearance opening, and the inner diameter of the second clearance opening is larger than the outer diameter of the opening retaining ring.

5. A dimming structure according to claim 1, characterized in that, The dimming mechanism further includes an adjustment adapter mechanism, which includes an adapter shaft, a first fixing plate, and a second fixing plate. One end of the adapter shaft is provided with an adjustment wheel, and the other end of the adapter shaft is provided with an adapter gear. The adapter gear is used to mesh with an adjustment screw, and the adjustment wheel is used to connect to an external dimming tool. The first fixing plate and the second fixing plate are used to rotatably mount the adapter shaft on the headlight housing.

6. A dimming structure according to claim 5, characterized in that, The adapter shaft is a split component consisting of an adjusting wheel, an adapter gear, and a shaft body. The adjusting wheel is fixedly mounted on one end of the shaft body with an interference fit, and the adapter gear is fixedly mounted on the other end with an interference fit. The first fixing plate is used to rotatably mount the adapter gear on the headlight housing, and the second fixing plate is used to rotatably mount the adjusting wheel on the headlight housing.

7. A dimming structure according to claim 6, characterized in that, The first fixing plate is composed of an upper fixing plate and a lower fixing plate with identical structures. The upper fixing plate covers the lower fixing plate to form a tubular structure, and extension platforms are distributed on both sides of the tubular structure. Connection holes are provided on the extension platforms. A limiting boss is provided on the inner wall of the tubular structure. One end of the adapter gear connected to the shaft is located in the tubular structure, and the adapter gear cooperates with the limiting boss through a positioning groove provided on its outer periphery, which limits the axial movement of the adapter gear, thereby rotatably mounting the adapter gear on the first fixing plate.

8. A dimming structure according to claim 7, characterized in that, The upper fixing plate covers the lower fixing plate, and the two are connected by a limiting mechanism. The limiting mechanism includes a limiting post and a limiting hole. The limiting post is inserted into the limiting hole to limit the upper fixing plate above the lower fixing plate. The upper fixing plate and the lower fixing plate are connected by a snap-fit ​​mechanism. The snap-fit ​​mechanism includes a snap-fit ​​buckle and a snap-fit ​​groove. The snap-fit ​​buckle is engaged in the snap-fit ​​groove to engage the upper fixing plate above the lower fixing plate.

9. A dimming structure according to claim 7, characterized in that, A bushing is provided in the middle of the second fixing plate, and extension wings are provided on both sides of the outer periphery of the bushing. The extension wings are provided with connecting holes. One end of the inner surface of the bushing is provided with a plurality of ring-shaped buckles, which are used to fit into a ring of grooves on the outer periphery of the adjusting wheel, thereby rotatably installing the adjusting wheel on the second fixing plate. The other end of the inner surface of the bushing is provided with a ring of support platforms, which are used to support the shaft.

10. A vehicle light, characterized in that, Includes the dimming structure described in any one of claims 1-9.

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