CN109973933A - A car light dimming mechanism with simple installation and low precision requirements - Google Patents

Abstract

The invention discloses a vehicle lamp dimming mechanism with simple installation and low precision requirements. The dimming mechanism includes a lampshade, a fixing component, a driving component and an adjustment mechanism. A second mounting seat is provided on the other side of the middle of the back of the lampshade, a third mounting seat is provided on one side of the bottom end of the back of the lampshade, one end of the first mounting seat is screwed with a fixing component, and one end of the second mounting seat is A drive assembly is installed, and an adjustment mechanism is installed at one end of the third installation seat. The invention is scientific and reasonable, safe and convenient to use, and the installation method of the adjustment mechanism is optimized. When the first fixing screw is installed in place, the sealing rubber ring is also The installation is in place, the sealing performance is improved, there is no water leakage, and the first fixing screw is within the visible range, it is easy to check the situation that the first adjusting screw is not installed in place, and adjustments can be made in time, which is convenient for later disassembly and replacement.

Description

A car light dimming mechanism with simple installation and low precision requirements

technical field

The invention relates to the technical field of automobile lamps, in particular to a vehicle lamp dimming mechanism with simple installation and low precision requirements.

Background technique

With the in-depth development of reform and opening up and the continuous improvement of people's income, great changes have taken place in people's consumption concepts and methods, and the increasingly perfect traffic conditions allow more people to choose cars as a means of travel, which has prompted the development of the automobile industry. With rapid development, automobile sales are increasing year by year, and at the same time, the competition among the automobile industries has also intensified. As an important part of the car, the dimming mechanism has a considerable impact on the entire light.

The current dimming mechanism has high requirements for the corresponding structural accuracy of the lamp body. If the installation is not in place, water leakage will occur, and then the whole lamp is prone to fog, which affects the light type, driving safety and driving experience. Specialized production is required. The machine tool applies pressure to force it into the structure of the lamp body. Since the installation structure is inside, it is impossible to tell whether the installation is not in place from the outside, which affects the yield of the product. In addition, during the installation process, a small amount of light will enter the inside of the lamp. Water vapor will also produce water mist in the case of strong light, which affects the appearance of the headlights.

In addition, the high installation difficulty also increases the difficulty of making prototypes in the early stage, which is not conducive to quickly responding to the needs of customers and projects. Therefore, there is an urgent need for a light dimming mechanism with simple installation and low precision requirements to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a car light dimming mechanism with simple installation and low precision requirements, so as to solve the problem that the current dimming mechanism proposed in the prior art has higher requirements on the corresponding structural accuracy of the lamp body, and the light will be damaged if the installation is not in place. Water leakage will occur, and the whole lamp is prone to fog, which will affect the light pattern, driving safety and driving experience. Since the installation structure is inside, it is impossible to distinguish whether there is improper installation from the outside, which will affect the yield of the product.

In order to achieve the above object, the present invention provides the following technical solutions: a car light dimming mechanism with simple installation and low precision requirements, the dimming mechanism includes a lampshade, a fixing component, a driving component and an adjusting mechanism;

Both ends of the back of the lampshade are provided with bulb installation holes, one side of the middle part of the back of the lampshade is provided with a first installation seat, the other side of the middle part of the back of the lampshade is provided with a second installation seat, and the bottom side of the back of the lampshade is A third mount is provided, one end of the first mount is threadedly mounted with a fixing component, one end of the second mount is mounted with a drive component, and one end of the third mount is mounted with an adjustment mechanism;

The fixing component is fixedly installed on the lamp housing, the adjusting component is fixedly installed on the vehicle lamp housing, and the adjusting mechanism is also installed on the vehicle lamp housing to realize the fixation of the axis. Adjustment of headlights.

Preferably, the fixing assembly includes a first fixing seat, a ball screw and a buckle;

The first mounting seat and the first fixing seat are fixedly connected by tightening bolts, and a ball-head screw is installed inside the first fixing seat by snapping.

Preferably, the driving assembly includes a second fixing seat, a ball-head fixing rod and a driving motor;

The second mounting seat is fixedly connected to the second fixing seat by fastening bolts, a ball head fixing rod is installed inside the second fixing seat, and a drive motor is installed at one end of the ball head fixing rod.

Preferably, the adjusting mechanism includes a fixed housing, a sealing seat, an adjusting gear seat, a first adjusting screw, a fixed slot, a sealing cover, a fixed block, a first fixing screw, a sealing rubber ring, a second adjusting screw, and a screw bracket , threaded sleeve, fixing groove, drying component, second fixing screw and third fixing seat;

The third mounting seat and the third fixing seat are fixedly connected by fastening bolts, the third fixing seat is rotatably connected with one end of the second adjusting screw, and the other end of the second adjusting screw is connected with the adjusting gear seat. The middle part of the second adjusting screw is rotatably installed with a screw support through a threaded sleeve, a fixing groove is opened on both sides of the screw support, a drying component is installed inside the fixing groove, and both sides of one end of the screw support are A fixed casing is fixedly installed by a second fixing screw, a sealing seat is installed on one side of the fixed casing, an adjusting gear seat is fixedly installed inside the sealing seat through a sealing rubber ring, and one side of the adjusting gear seat is connected by gear meshing with a A first adjusting screw, one end of the first adjusting screw is provided with a fixing slot, the top of the sealing seat is fixedly installed with a sealing cover through a first fixing screw, and a fixing block is installed on the inner side of the sealing cover, and the sealing The cover and the first adjusting screw are fixedly connected through a fixed card slot and a fixed block;

Install the adjusting gear seat into the sealing seat so that the sealing rubber ring seals the bottom of the sealing seat, insert the first adjusting screw into the inside of the sealing seat so that the first adjusting screw and the adjusting gear seat mesh with each other, and cover the sealing cover , snap the fixed block into the fixed slot, and fix the sealing seat and the sealing cover through the first fixing screw, and optimize the installation method of the adjustment mechanism. When the first fixing screw is installed in place, the sealing The rubber ring is also installed in place, which improves the sealing performance, and there is no water leakage. Moreover, the first fixing screw is within the visible range, so it is easy to check if the first adjusting screw is not installed properly, and timely adjustments can be made to facilitate later disassembly and replace;

The optimized installation method reduces the accuracy requirements of the workpiece, improves the yield rate, reduces the difficulty of making the workpiece, and improves work efficiency.

Preferably, the drying assembly includes a drying box, a moisture absorption hole, a sliding groove, a fixing hole, a fixing button, a return spring, a block and a toggle plate;

A drying box is installed inside the fixing groove, moisture absorption holes are opened at equal distances on one side of the drying box, a sliding groove is horizontally opened in the middle of one side of the drying box, and fixing holes are opened in the middle of both sides of the inner side of the fixing groove. A fixing button is embedded in the middle of both sides of the drying box, a return spring is installed between the two fixing buttons, and a clamping block is embedded and installed at both ends of the middle of the return spring, and a toggle is installed at one end of the clamping block. a plate, the toggle plate is installed through the sliding groove;

The desiccant filled inside the drying box and the moisture absorption holes can absorb a small amount of water vapor inside the lamp after the lamp is installed, avoiding the moisture adsorption inside the lamp under the condition of high temperature baking, which effectively protects the car. The complete drying of the inside of the lamp improves the appearance of the lamp. At the same time, the toggle plate is squeezed inward to make the return spring shrink. The elastic drive fixing button is snapped into the fixing hole, which is convenient for the fixed installation of the drying box, and at the same time, it is also convenient for the disassembly and replacement of the drying box.

Preferably, the width of the toggle plate is equal to the width of the sliding groove, so that the toggle plate will not be dislocated when the return spring is toggled, making the installation of the drying box more convenient.

Preferably, a limit plate is installed in the middle of the second adjusting screw, and the diameter of the limit plate is larger than the diameter of the bottom end of the adjusting gear seat. By using the limit plate, the position of the light adjustment can be limited to avoid excessive lighting of the vehicle. Adjustment results in damage to fixing components.

Preferably, the inner diameter of the fixing hole is equal to the diameter of the fixing button, so that the drying box can be fixed more stably without shaking due to the vibration during the use of the car.

Preferably, the length of the return spring in the relaxed state is equal to the width at the corresponding position of the drying box, so as to avoid the drying box being unable to be fixed by the fixing button.

Compared with the prior art, the beneficial effects of the present invention are:

1. It is equipped with a sealing seat, an adjusting gear seat, a first adjusting screw, a fixed slot, a sealing cover, a fixed block, a first fixing screw and a sealing rubber ring. Install the adjusting gear seat into the sealing seat so that the sealing rubber ring is Seal the bottom of the sealing seat, snap the first adjusting screw into the inside of the sealing seat so that the first adjusting screw and the adjusting gear seat mesh with each other, cover the sealing cover, snap the fixed block into the fixed slot, and pass The first fixing screw fixes the sealing seat and the sealing cover, and optimizes the installation method of the adjustment mechanism. When the first fixing screw is installed in place, the sealing rubber ring is also installed in place, which improves the sealing performance and prevents water leakage. phenomenon, and the first fixing screw is within the visible range, it is easy to check the situation that the installation of the first adjusting screw is not in place, and adjustments can be made in time, which is convenient for later disassembly and replacement.

2. The optimized installation method reduces the accuracy requirements of the workpiece, improves the yield rate, reduces the difficulty of making the workpiece, and improves work efficiency.

3. Equipped with a drying component, using the desiccant filled inside the drying box and using the moisture absorption hole, it can absorb a small amount of water vapor inside the car light after the car light is installed, avoiding the water vapor adsorbed on the car light when it is baked at high temperature Inside, it effectively guarantees the complete drying of the interior of the lamp and improves the appearance of the lamp. At the same time, the return spring is contracted by pressing the toggle plate inward. The moving plate uses the elastic force of the return spring to drive the fixing button into the fixing hole, which is convenient for the fixed installation of the drying box, and at the same time, it is also convenient for the disassembly and replacement of the drying box.

Description of drawings

Fig. 1 is a structural schematic diagram of a car light dimming mechanism with simple installation and low precision requirements in the present invention;

Fig. 2 is a structural schematic diagram of an adjusting mechanism of a vehicle lamp dimming mechanism with simple installation and low precision requirements according to the present invention;

Fig. 3 is a cross-sectional view of an adjusting mechanism of a vehicle lamp dimming mechanism with simple installation and low precision requirements according to the present invention;

Fig. 4 is a structural schematic diagram of a sealing cover of a car light dimming mechanism with simple installation and low precision requirements according to the present invention;

Fig. 5 is a structural schematic diagram of the first adjusting screw of the car lamp dimming mechanism with simple installation and low precision requirements according to the present invention;

Fig. 6 is a schematic diagram of the structure of the back of the lampshade of the car lamp dimming mechanism with simple installation and low precision requirements;

FIG. 7 is a schematic structural diagram of a fixing assembly of a vehicle light dimming mechanism with simple installation and low precision requirements according to the present invention;

8 is a cross-sectional view of a fixing assembly of a vehicle lamp dimming mechanism with simple installation and low precision requirements according to the present invention;

9 is a schematic diagram of the installation structure of a drying assembly of a vehicle lamp dimming mechanism with simple installation and low precision requirements according to the present invention;

FIG. 10 is a schematic diagram of the installation structure of a return spring of a vehicle lamp dimming mechanism with simple installation and low precision requirements according to the present invention.

Labels in the figure: 1. Lampshade; 2. Bulb mounting hole; 3. First mounting seat; 4. Second mounting seat; 5. Third mounting seat;

6. Fixing component; 601, first fixing seat; 602, ball head screw; 603, buckle;

7. Drive assembly; 701, second fixing seat; 702, ball head fixing rod; 703, drive motor;

8. Adjustment mechanism; 801, fixed shell; 802, sealing seat; 803, adjusting gear seat; 804, first adjusting screw; 805, fixing slot; 806, sealing cover; 807, fixing block; 808, first fixing Screw; 809, sealing rubber ring; 810, second adjusting screw; 811, screw bracket; 812, threaded sleeve; 813, fixing groove;

814, drying assembly; 8141, drying box; 8142, moisture absorption hole; 8143, sliding groove; 8144, fixing hole; 8145, fixing button; 8146, return spring; 8147, block; 8148, toggle plate;

815, the second fixing screw; 816, the third fixing seat.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment: As shown in Figures 1-10, the present invention provides a technical solution, a car light dimming mechanism that is simple to install and requires low precision. The dimming mechanism includes a lampshade 1, a fixing assembly 6, a driving assembly 7 and Adjustment mechanism 8;

Both ends of the back of the lampshade 1 are provided with bulb mounting holes 2 for fixing the lamp bulbs. A first mounting seat 3 is provided on the middle side of the back of the lampshade 1 for the fixed installation of the fixing assembly 6. The back of the lampshade 1 is provided with a first mounting seat 3 The other side of the middle part is provided with a second mounting seat 4, which is used for the fixed installation of the driving assembly 7, and the third mounting seat 5 is provided on the bottom side of the back of the lampshade 1, which is used for the fixed installation of the adjusting mechanism 8. One end of the seat 3 is mounted with a fixing assembly 6 through threads, one end of the second mounting seat 4 is mounted with a driving assembly 7 , and one end of the third mounting seat 5 is mounted with an adjusting mechanism 8 .

The fixing assembly 6 includes a first fixing seat 601, a ball screw 602 and a buckle 603;

The first mounting base 3 and the first fixing base 601 are fixedly connected by fastening bolts, and the inside of the first fixing base 601 is rotatably mounted with a ball screw 602 through a buckle 603 for fixing and installing the center point of the lampshade 1 .

The driving assembly 7 includes a second fixing seat 701, a ball-head fixing rod 702 and a driving motor 703;

The second mounting base 4 and the second fixing base 701 are fixedly connected by tightening bolts. The second fixing base 701 is provided with a ball head fixing rod 702, so that different angles can be adjusted. One end of the ball head fixing rod 702 is installed with a Drive motor 703 , the input end of drive motor 703 is electrically connected with the output end of the power supply, and the model of drive motor 703 is RS-520, which is used to adjust the angle of one end of lampshade 1 .

The adjusting mechanism 8 includes a fixed casing 801, a sealing seat 802, an adjusting gear seat 803, a first adjusting screw 804, a fixing slot 805, a sealing cover 806, a fixing block 807, a first fixing screw 808, a sealing rubber ring 809, a second Adjusting screw 810, screw bracket 811, threaded sleeve 812, fixing groove 813, drying assembly 814, second fixing screw 815 and third fixing seat 816;

The third mounting base 5 and the third fixing base 816 are fixedly connected by fastening bolts, and the third fixing base 816 is rotationally connected to one end of the second adjusting screw 810, so that the adjusting mechanism 8 can realize different adjustments for the lampshade 1. Angle adjustment is not a fixed installation, which improves the feasibility. The other end of the second adjustment screw 810 is slidingly connected to the adjustment gear seat 803, so that the second adjustment screw 810 can be stretched, and then the lampshade 1 can be adjusted. The middle part of the adjusting screw 810 is rotated by a threaded sleeve 812 to install a screw bracket 811, which is used to form a fulcrum, so that the second adjusting screw 810 can realize telescopic movement. Both sides of the screw bracket 811 are provided with fixing grooves 813 for installing a drying assembly 814. A drying assembly 814 is installed inside the fixing groove 813, which is used to dry the inside of the lamp, so as to avoid the influence of a small amount of water vapor on the inside of the lamp during installation. Both sides of one end of the screw bracket 811 are fixed with a second fixing screw 815 to install a fixed shell 801 is used to fix one end of the adjustment mechanism 8. A seal seat 802 is installed on one side of the fixed housing 801, which is used to seal the installation position of the adjustment mechanism 8 to prevent water vapor from entering the interior of the lamp. The interior of the seal seat 802 is sealed The rubber ring 809 is fixedly installed with an adjustment gear seat 803. In order to limit the position of the light adjustment and avoid damage to the fixed assembly 6 caused by excessive adjustment of the lamp, a limit plate is installed in the middle of the second adjustment screw 810. The diameter of the limit plate is Greater than the diameter of the bottom end of the adjustment gear seat 803, the sealing performance of the adjustment mechanism 8 during installation is further improved through the sealing rubber ring 809, and the meshing connection between the second adjustment screw rod 810 of the adjustment gear seat 803 is used to make the rotation of the adjustment gear seat 803, The second adjustment screw 810 can be driven to rotate, and then the angle of the lamp can be adjusted. The first adjustment screw 804 is connected to one side of the adjustment gear seat 803 through gear meshing, and is used to drive the adjustment gear seat 803 to rotate. The first adjustment screw 804 One end edge is provided with a fixed slot 805, and the top of the sealing seat 802 is fixed with a sealing cover 806 through a first fixing screw 808, and a fixed block 807 is installed on the inner side of the sealing cover 806, and the fixed slot 805 and the fixed block 807 cooperate with each other. , can make the installation of the first adjusting screw 804 more firm, and at the same time, improve the sealing performance of the installation place of the first adjusting screw 804, the sealing cover 806 and the first adjusting screw 804 are fixed by the fixing slot 805 and the fixing block 807 connect.

The drying assembly 814 includes a drying box 8141, a moisture absorption hole 8142, a sliding groove 8143, a fixing hole 8144, a fixing button 8145, a return spring 8146, a block 8147 and a toggle plate 8148;

A drying box 8141 is installed inside the fixing groove 813, which is used to store the desiccant and realize the absorption of a small amount of water vapor inside the vehicle lamp. One side of the drying box 8141 is equidistantly provided with a moisture absorption hole 8142, which is used to absorb a small amount of water vapor inside the vehicle lamp and dry it. A sliding slot 8143 is horizontally opened in the middle of one side of the box 8141, so that the toggle plate 8148 can slide inside the sliding slot 8143. The inner side of the fixing slot 813 is provided with fixing holes 8144 in the middle, and the middle of both sides of the drying box 8141 is embedded in the middle The button 8145, the fixing hole 8144 and the fixing button 8145 are used to fix the installation position of the drying box 8141. In order to make the drying box 8141 more stable, it will not shake due to vibration during the use of the car. The inner diameter is equal to the diameter of the fixing button 8145. A return spring 8146 is installed between the two fixing buttons 8145 to drive the fixing button 8145 into the fixing hole 8144. In order to avoid the failure to fix the drying box 8141 through the fixing button 8145, the return spring The length of the 8146 in the relaxed state is equal to the width of the corresponding position of the drying box 8141. The middle and both ends of the return spring 8146 are embedded with a clamping block 8147, which is used to fix the installation position of the toggle plate 8148 on the return spring 8146. The clamping block A toggle plate 8148 is installed at one end of the 8147, which is used to drive the return spring 8146 and facilitate the fixed installation and removal of the drying box 8141. When the return spring 8146 is not displaced, the installation of the drying box 8141 is more convenient, and the width of the toggle plate 8148 is equal to the width of the sliding groove 8143 .

The working principle of the present invention is as follows: firstly, the dimming mechanism needs to be fixedly installed, and the first fixing base 601 is fixedly installed on the first mounting base 3 by fastening bolts, and the second fixing base 701 is fixedly installed on the second mounting base 3 On the seat 4, fix the third fixing seat 816 on the third mounting seat 5, insert the ball screw 602 into the first fixing seat 601, fix one end of the ball screw 602 with the buckle 603, and fix the ball head One end of the rod 702 is snapped into the second fixing seat 701, and the other end of the ball head fixing rod 702 is fixed on the driving motor 703, and then the ball screw 602 and the driving motor 703 are respectively fixedly installed on the lamp housing;

Then install the adjusting mechanism 8. First, insert the adjusting gear seat 803 into the inside of the sealing seat 802, use the sealing rubber ring 809 to initially seal the installation of the adjusting gear seat 803, and then snap the first adjusting screw rod 804 into the sealing seat 802 side, so that the meshing connection between the adjustment gear seat 803 and the first adjustment screw 804 is made, then the sealing cover 806 is covered above the sealing seat 802, and the fixed block 807 at one end of the sealing cover 806 is snapped into one end of the first adjustment screw 804 inside of the fixing slot 805, and then use the first fixing screw 808 to fix between the sealing seat 802 and the sealing cover 806, and then pass the second adjusting screw 810 through the threaded sleeve 812 in the middle of the screw bracket 811, so that the second adjusting Screw rod 810 is threadedly connected with threaded sleeve 812, and then one end of second adjusting screw rod 810 is inserted into the third fixed seat 816, and then the other end of second adjusting screw rod 810 is inserted into the bottom end of adjusting gear seat 803, so that the adjusting gear seat 803 is meshed with the second adjusting screw 810, and then the second fixing screw 815 is used to fix the screw bracket 811 on the fixed shell 801, that is, the fixed installation of the adjusting mechanism 8 is completed;

Then it is necessary to fix the drying assembly 814, add desiccant to the inside of the drying box 8141, and then pinch the toggle plate 8148 with fingers to make the toggle plate 8148 move toward each other, and use the block 8147 to drive the return spring 8146 to contract, so that the fixing button 8145 Put the drying box 8141 into the inside of the drying box 8141, then align the drying box 8141 with the fixing groove 813 and snap it into the fixing groove 813. When the drying box 8141 is completely inserted into the fixing groove 813, loosen the toggle plate 8148 and use the elastic force of the return spring 8146 to drive it. The fixing button 8145 moves outward, so that the fixing button 8145 is snapped into the fixing hole 8144, and the fixed installation of the drying assembly 814 is completed;

When the angle of the vehicle lamp needs to be adjusted by the adjusting mechanism 8, the first adjusting screw 804 is manually driven to rotate, the rotation of the first adjusting screw 804 is used to drive the adjusting gear base 803 to rotate, and the rotation of the adjusting gear base 803 is used to drive the second adjusting screw 803 to rotate. The adjustment screw 810 rotates, because the second adjustment screw 810 and the screw bracket 811 are connected by the threaded sleeve 812, and the screw bracket 811 is fixedly connected with the fixed housing 801, so that the length of the second adjustment screw 810 changes, pushing The lower end of the lampshade 1 is moved to realize the adjustment of the lamp;

The desiccant filled in the drying box 8141 and the moisture absorption hole 8142 can be used to absorb a small amount of water vapor inside the lamp after the lamp is installed, effectively ensuring the complete drying of the interior of the lamp and improving the appearance of the lamp. , the drying box 8141 can also be quickly disassembled and replaced by the way of installing the drying box 8141 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (9)

1. A car light dimming mechanism with simple installation and low precision requirements, characterized in that: the dimming mechanism includes a lampshade (1), a fixing component (6), a driving component (7) and an adjusting mechanism (8); Both ends of the back of the lampshade (1) are provided with bulb installation holes (2), the middle side of the back of the lampshade (1) is provided with a first mounting seat (3), and the other side of the middle of the back of the lampshade (1) is A second mounting seat (4) is provided, a third mounting seat (5) is provided on the bottom side of the back of the lampshade (1), and a fixing assembly (6) is installed on one end of the first mounting seat (3) through threads , a drive assembly (7) is mounted on one end of the second mount (4), and an adjustment mechanism (8) is mounted on one end of the third mount (5). 2. A car lamp dimming mechanism with simple installation and low precision requirements according to claim 1, characterized in that: the fixing assembly (6) includes a first fixing seat (601), a ball screw (602) and Buckle(603); The first mounting base (3) is fixedly connected to the first fixing base (601) by fastening bolts, and a ball screw (602) is installed inside the first fixing base (601) through a buckle (603). ). 3. A car light dimming mechanism with simple installation and low precision requirements according to claim 1, characterized in that: the driving assembly (7) includes a second fixing seat (701), a ball head fixing rod (702 ) and drive motor (703); The second mounting base (4) is fixedly connected with the second fixing base (701) by fastening bolts, and a ball head fixing rod (702) is installed inside the second fixing base (701), and the ball head A driving motor (703) is installed at one end of the fixed rod (702). 4. A car lamp dimming mechanism with simple installation and low precision requirements according to claim 1, characterized in that: the adjusting mechanism (8) includes a fixed housing (801), a sealing seat (802), an adjusting gear Seat (803), first adjusting screw (804), fixing slot (805), sealing cover (806), fixing block (807), first fixing screw (808), sealing rubber ring (809), second Adjusting screw (810), screw bracket (811), threaded sleeve (812), fixing groove (813), drying assembly (814), second fixing screw (815) and third fixing seat (816); The third mounting seat (5) and the third fixing seat (816) are fixedly connected by fastening bolts, and the third fixing seat (816) is rotatably connected with one end of the second adjusting screw (810), so The other end of the second adjusting screw (810) is slidably connected with the adjusting gear seat (803). The middle of the second adjusting screw (810) is rotatably installed with a screw support (811) through a threaded sleeve (812). Both sides of the bracket (811) are provided with fixing grooves (813), a drying component (814) is installed in the fixing groove (813), and a second fixing screw (815) passes through one end of the screw bracket (811) on both sides. A fixed casing (801) is fixedly installed, a sealing seat (802) is installed on one side of the fixed casing (801), and an adjusting gear seat (803) is fixedly installed inside the sealing seat (802) through a sealing rubber ring (809). One side of the adjusting gear seat (803) is connected with a first adjusting screw (804) through gear meshing, and one end of the first adjusting screw (804) is provided with a fixing slot (805), the sealing seat (805) 802) A sealing cover (806) is fixedly installed at the top through a first fixing screw (808), a fixing block (807) is installed inside the sealing cover (806), and the sealing cover (806) is connected with the first adjusting screw (806). 804) are fixedly connected through the fixed card slot (805) and the fixed card block (807). 5. A car lamp dimming mechanism with simple installation and low precision requirements according to claim 4, characterized in that: the drying assembly (814) includes a drying box (8141), a moisture absorption hole (8142), and a sliding groove (8143), fixing hole (8144), fixing button (8145), return spring (8146), block (8147) and toggle plate (8148); A drying box (8141) is installed inside the fixing groove (813), and moisture absorption holes (8142) are equidistantly provided on one side of the drying box (8141), and a sliding groove is opened horizontally in the middle of one side of the drying box (8141) (8143), the middle of both sides of the fixing groove (813) is provided with fixing holes (8144), the middle of both sides of the drying box (8141) is embedded with fixing buttons (8145), and the two fixing buttons A return spring (8146) is installed between (8145), and both ends of the middle part of the return spring (8146) are embedded with blocks (8147), and one end of the block (8147) is equipped with a toggle plate (8148), The toggle plate (8148) is installed through the slide groove (8143). 6. A car lamp dimming mechanism with simple installation and low precision requirements according to claim 5, characterized in that: the width of the toggle plate (8148) is equal to the width of the sliding groove (8143). 7 . The dimming mechanism for a vehicle lamp with simple installation and low precision requirements according to claim 4 , wherein a limit plate is installed in the middle of the second adjusting screw (810 ), and the diameter of the limit plate Greater than the diameter of the bottom end of the adjusting gear seat (803). 8. A car light dimming mechanism with simple installation and low precision requirements according to claim 5, characterized in that: the inner diameter of the fixing hole (8144) is equal to the diameter of the fixing button (8145). 9. A car light dimming mechanism with simple installation and low precision requirements according to claim 5, characterized in that: the length of the return spring (8146) in a relaxed state is equal to the length of the corresponding position of the drying box (8141). width.