Dimming device and dimming system

Abstract

The utility model discloses a dimming device and a dimming system, and relates to the technical field of automobile lighting, the dimming device is used for adjusting a module to be dimmed, the dimming device comprises a shell, a double-thread screw and a micro-motion component, the double-thread screw is provided with a first thread section and a second thread section, the thread pitch of the first thread section is unequal to the thread pitch of the second thread section, and the micro-motion component is arranged on the shell. The double-thread screw is in threaded connection with a first internal thread on the shell through a first thread section, the double-thread screw is in threaded connection with a second internal thread on the micro-motion component through a second thread section, a first micro-motion ball head is arranged at the end, away from the double-thread screw, of the micro-motion component, and the first micro-motion ball head is configured to be connected with a module to be dimmed. According to the dimming device, precise adjustment of the position between the micro-motion component and the shell is achieved through differential screw transmission generated by the thread pitches of the two sets of different thread sections of the double-thread screw, the adjustment precision is high, the manufacturing process is simple, and the cost is low.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of automotive lighting technology, in particular to a light adjusting device and a light adjusting system. BACKGROUND

[0002] The automobile headlamp, as the eyes of the car, not only affects the appearance of the car, but also is closely related to the driving safety in the night or bad weather conditions. In recent years, the application of multi-module form headlamps is more and more widely used. In order to align the light shapes generated by multiple modules, the modules need to be adjusted.

[0003] The existing light adjusting mechanism usually adopts light adjusting screw and fixed buckle thread cooperation to realize light adjustment. In the light adjusting process, one end of the light adjusting support is fixed with the fixed buckle, and the other end is fixed on the lamp shell through the ball joint connector. By rotating the light adjusting screw, the fixed buckle moves on the screw to drive the whole light adjusting support to rotate, thereby realizing the light adjustment of the headlamp module. However, through the thread light adjustment, the light adjustment precision is limited by the thread pitch, which will result in low light adjustment precision. If high-precision light adjustment is to be achieved, the thread pitch must be small, but small thread pitch means higher processing difficulty and processing cost. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to provide a light adjusting device and a light adjusting system, which can precisely adjust the automobile headlamp module, and has the advantages of high adjustment precision, simple manufacturing process and low cost.

[0005] Embodiments of the present disclosure are implemented as follows:

[0006] A light adjusting device for adjusting a to-be-adjusted module, comprising a housing, a double-thread screw and a micro-motion component, the double-thread screw is provided with a first thread segment and a second thread segment respectively, the thread pitch of the first thread segment is different from the thread pitch of the second thread segment, the double-thread screw is threadedly connected with the first thread hole on the housing through the first thread segment, the double-thread screw is threadedly connected with the second thread hole on the micro-motion component through the second thread segment, and the end of the micro-motion component away from the double-thread screw is provided with a first micro-motion ball head configured to be connected with the to-be-adjusted module.

[0007] Optionally, as an implementable way, the thread pitch of the first thread segment is greater than the thread pitch of the second thread segment, and the first thread segment and the second thread segment have the same rotation direction.

[0008] Optionally, as an implementable way, the first surface of the housing is provided with a mounting groove extending into the housing, the sidewall of the double-thread screw is provided with a first positioning boss, the first positioning boss is located between the first thread segment and the second thread segment, and cooperates with the mounting groove, and the first positioning boss is accommodated in the mounting groove.

[0009] Optionally, as a kind of implementable mode, the first threaded hole is arranged on the second surface of the shell opposite to the first surface and extends to the inside of the shell and is communicated with the mounting groove.

[0010] Optionally, as a kind of implementable mode, the micro-motion component further comprises a micro-motion rod, the first micro-motion ball head is arranged at the end of the micro-motion rod, and the second threaded hole is located at the end face of the micro-motion rod away from the first micro-motion ball head.

[0011] Optionally, as a kind of implementable mode, the side wall of the micro-motion rod is provided with a second positioning boss, the second positioning boss is matched with the mounting groove, and the second positioning boss is accommodated in the mounting groove.

[0012] Optionally, as a kind of implementable mode, the side wall of the micro-motion rod is further provided with a third positioning boss, the third positioning boss is located between the second positioning boss and the first micro-motion ball head, and the orthographic projection of the third positioning boss on the second positioning boss is located in the second positioning boss.

[0013] Optionally, as a kind of implementable mode, the side wall of the shell is provided with a fastening hole, the fastening hole is communicated with the mounting groove, the light adjusting device further comprises a fastening screw, the fastening screw is threadedly connected with the fastening hole and abuts against the first positioning boss.

[0014] Optionally, as a kind of implementable mode, the mounting groove and the second positioning boss are both polygonal columnar, the inner wall of the mounting groove is adapted to the outer wall of the second positioning boss.

[0015] Optionally, as a kind of implementable mode, the first positioning boss is cylindrical, and the outer wall of the first positioning boss is tangent to the inner wall of the mounting groove.

[0016] Optionally, as a kind of implementable mode, the two end faces of the double-threaded screw are respectively provided with adjusting grooves, and the adjusting grooves are configured to be adapted to the tightening tool.

[0017] A light adjusting system comprising the light adjusting device according to any one of the preceding claims.

[0018] Optionally, as a kind of implementable mode, further comprising a light adjusting support and a fulcrum screw fixed on the light adjusting support, the fulcrum screw is provided with a third threaded section and a second micro-motion ball head at the opposite end, the fulcrum screw is threadedly connected with the light module to be adjusted through the third threaded section and connected with the light adjusting support through the second micro-motion ball head; the shell of the light adjusting device is fixedly connected with the light adjusting support.

[0019] Optionally, as a kind of implementable mode, the shell is provided with a limiting boss at one end away from the micro-motion component of the light adjusting device and at least two clamping legs at one end close to the micro-motion component, the clamping legs are obliquely arranged towards the limiting boss, and the clamping legs are configured to move towards the shell after being pressed and restore after being released.

[0020] Optionally, as an implementable mode, the light-adjusting support is provided with a first through hole, the shell and the first through hole are both polygonal columns, and the outer wall of the shell is matched with the first through hole.

[0021] Optionally, as an implementable mode, the outer wall of the shell is provided with an anti-rotation rib body, the light-adjusting support is provided with a second through hole, and the inner wall of the second through hole is provided with an anti-rotation groove matched with the anti-rotation rib body.

[0022] Optionally, as an implementable mode, the light-adjusting device includes two, and the fulcrum screw and the two light-adjusting devices are distributed in a triangular shape on the light-adjusting support.

[0023] Optionally, as an implementable mode, the light-adjusting support is provided with a third through hole, and the light-adjusting module to be adjusted passes through the third through hole.

[0024] The beneficial effects of the embodiments of the present disclosure include:

[0025] The light-adjusting device provided by the embodiments of the present disclosure is used for adjusting a light-adjusting module, and includes a shell, a double-thread screw, and a micro-motion component. The double-thread screw is respectively provided with a first threaded section and a second threaded section. The thread pitch of the first threaded section is different from the thread pitch of the second threaded section. The double-thread screw is threadedly connected to a first threaded hole on the shell through the first threaded section, and is threadedly connected to a second threaded hole on the micro-motion component through the second threaded section. An end of the micro-motion component away from the double-thread screw is provided with a first micro-motion ball head configured to be connected to the light-adjusting module to be adjusted. The above light-adjusting device uses the differential screw transmission generated by the difference in thread pitch between the first threaded section and the second threaded section of the double-thread screw to achieve precise adjustment of the position between the micro-motion component and the shell, and then achieve precise adjustment of the light-adjusting module to be adjusted, with high adjustment precision, simple manufacturing process, and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 One of the structural schematic diagrams of the light-adjusting device provided by the embodiments of the present disclosure;

[0028] Figure 2 The cross-sectional view of the light-adjusting device provided by the embodiments of the present disclosure;

[0029] Figure 3 The structural schematic diagram of the double-thread screw in the light-adjusting device provided by the embodiments of the present disclosure;

[0030] Figure 4 Structure diagram of micro-motion component in dimming device provided by the embodiment of the present disclosure;

[0031] Figure 5 Structure diagram of dimming device provided by the embodiment of the present disclosure;

[0032] Figure 6 Structure diagram of dimming system provided by the embodiment of the present disclosure;

[0033] Figure 7 Sectional view of dimming system provided by the embodiment of the present disclosure.

[0034] Icon: 100-dimming device; 110-housing; 111-first surface; 112-second surface; 113-mounting groove; 114-limiting boss; 115-clamping leg; 120-double-threaded screw; 121-first threaded section; 122-second threaded section; 123-first positioning boss; 124-adjusting groove; 130-micro-motion component; 131-first micro-motion ball head; 132-micro-motion rod; 133-second positioning boss; 134-third positioning boss; 140-fastening screw; 200-dimming system; 210-dimming support; 211-third through hole; 220-fulcrum screw; 221-second micro-motion ball head; 230-ball nut; 300-module to be dimmed. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The components of the embodiments of the present disclosure described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the claimed present disclosure, but only represents selected embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative labor are within the scope of protection of the present disclosure.

[0037] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the present disclosure, it should be pointed out that the positions or position relationships indicated by the terms "in", "out" and the like are based on the positions or position relationships shown in the drawings, or the positions or position relationships commonly placed when the utility model product is used, and are only for the convenience of describing the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present disclosure, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0040] Please refer to Figures 1 to 3 The embodiment provides a light adjusting device 100 for adjusting a light module to be adjusted 300, comprising a shell 110, a double-threaded screw 120 and a micro-motion component 130, the double-threaded screw 120 is respectively provided with a first threaded section 121 and a second threaded section 122, the thread pitch of the first threaded section 121 is different from the thread pitch of the second threaded section 122, the double-threaded screw 120 is threadedly connected with a first threaded hole on the shell 110 through the first threaded section 121, the double-threaded screw 120 is threadedly connected with a second threaded hole on the micro-motion component 130 through the second threaded section 122, and the end of the micro-motion component 130 away from the double-threaded screw 120 is provided with a first micro-motion ball head 131, and the first micro-motion ball head 131 is configured to be connected with the light module to be adjusted 300.

[0041] The two sections of the double-threaded screw 120 of the light adjusting device 100 are respectively threadedly connected with the shell 110 and the micro-motion component 130; please refer to Figure 6 and Figure 7 The light adjusting device 100 is fixed on the light adjusting support 210 through the shell 110, and then the first micro-motion ball head 131 on the micro-motion component 130 is connected with the light module to be adjusted 300, the relative position of the shell 110 and the micro-motion component 130 is adjusted by rotating the double-threaded screw 120, and the position of the light module to be adjusted 300 can be adjusted.

[0042] For example, the shell 110 and the micro-motion component 130 are both made of plastic material, and polyoxymethylene or a mixture of polyoxymethylene and glass fiber is used to ensure strength. The double-threaded screw 120 is made of metal material, for example, cold-pressed carbon steel wire (SWRCH22A).

[0043] The light-adjusting device 100 includes the shell 110, the double-threaded screw 120, and the micro-motion component 130. The double-threaded screw 120 is threadedly connected with the shell 110 and the micro-motion component 130, respectively. The differential screw transmission generated by the difference in thread pitch between the first thread segment 121 and the second thread segment 122 of the double-threaded screw 120 is used to achieve precise adjustment of the position between the micro-motion component 130 and the shell 110. The adjustment precision is high, the manufacturing process is simple, and the cost is low.

[0044] Optionally, in an implementable manner of the embodiment of the present disclosure, the thread pitch of the first thread segment 121 is greater than the thread pitch of the second thread segment 122, and the first thread segment 121 and the second thread segment 122 have the same rotation direction.

[0045] The differential screw transmission generated by the difference in thread pitch between the first thread segment 121 and the second thread segment 122 is used to achieve precise adjustment of the light-adjusting module 300. The double-threaded screw 120 is connected with the micro-motion component 130 through the second thread segment 122, and the micro-motion component 130 is connected with the light-adjusting module 300. The thread pitch of the second thread segment 122 is set to be smaller than the thread pitch of the first thread segment 121, which can further improve the adjustment precision of the light-adjusting device 100. The first thread segment 121 and the second thread segment 122 have the same rotation direction, so that the relative position between the shell 110 and the micro-motion component 130 can be adjusted by rotating the double-threaded screw 120, which is simple and convenient to operate.

[0046] Optionally, in an implementable manner of the embodiment of the present disclosure, the first surface 111 of the shell 110 is provided with a mounting groove 113 extending into the shell 110, the sidewall of the double-threaded screw 120 is provided with a first positioning boss 123, the first positioning boss 123 is located between the first thread segment 121 and the second thread segment 122, and cooperates with the mounting groove 113. The first positioning boss 123 can be accommodated in the mounting groove 113. Preferably, the size of the first positioning boss 123 is slightly smaller than the size of the mounting groove 113, so as to guide the installation of the double-threaded screw 120 in cooperation with the mounting groove 113. It should be understood that the mounting groove 113 should not hinder the rotation of the first positioning boss 123, so as to avoid the failure to rotate the double-threaded screw 120.

[0047] Optionally, in an implementable manner of the embodiment of the present disclosure, the first thread hole is arranged on the second surface 112 of the shell 110, the second surface 112 is opposite to the first surface 111, and the first thread hole extends into the shell 110 and communicates with the mounting groove 113.

[0048] The first threaded hole is connected with the first threaded section 121 of the double-threaded screw 120, one end of the first threaded hole is located on the second surface 112 of the shell 110, the second surface 112 is arranged opposite to the first surface 111, the first threaded hole extends to the inside of the shell 110 so that the other end of the first threaded hole is in communication with the mounting groove 113, so as to facilitate the rotation of the double-threaded screw 120 through the first threaded hole outside the shell 110. At the same time, the first threaded section 121 of the double-threaded screw 120 can extend out of the shell 110 and will not interfere with the shell 110, and the length of the first threaded section 121 can be increased to increase the adjustable range of the position of the to-be-adjusted light module 300.

[0049] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 6 Optionally, in an implementable manner of an embodiment of the present disclosure, the micro-motion component 130 further comprises a micro-motion rod 132, the first micro-motion ball head 131 is arranged at the end of the micro-motion rod 132, and the second threaded hole is located on the end face of the micro-motion rod 132 away from the first micro-motion ball head 131 and extends to the inside of the micro-motion rod 132. The first micro-motion ball head 131 and the second threaded hole are respectively located at opposite ends of the micro-motion rod 132, and respectively realize the connection with the to-be-adjusted light module 300 and the double-threaded screw 120 (i.e. the light adjustment bracket 210), so as to facilitate the adjustment of the position of the to-be-adjusted light module 300.

[0050] Optionally, in an implementable manner of an embodiment of the present disclosure, the side wall of the micro-motion rod 132 is arranged around the second positioning boss 133, and the second positioning boss 133 is matched with the mounting groove 113. The micro-motion component 130 is inserted into the mounting groove 113 and is threadedly connected with the double-threaded screw 120, and the second positioning boss 133 can be accommodated in the mounting groove 113 to cooperate with the mounting groove 113 to guide the movement of the micro-motion component 130.

[0051] Optionally, in an implementable manner of an embodiment of the present disclosure, the inner wall of the mounting groove 113 and the outer wall of the second positioning boss 133 are adapted to each other, both are polygonal columnar, and the first positioning boss 123 is cylindrical, and the outer wall of the first positioning boss 123 is tangent to the inner wall of the mounting groove 113.

[0052] Limiting the mounting groove 113 and the second positioning boss 133 to be polygonal columnar and the first positioning boss 123 to be cylindrical can not only make the micro-motion component 130 move axially in the mounting groove 113, but also realize the rotation of the double-threaded screw 120 in the mounting groove 113 and the guiding effect when the double-threaded screw 120 is mounted in the mounting groove 113.

[0053] Optionally, in an implementable manner of the embodiment of the present disclosure, the side wall of the micro-motion rod 132 further surrounds a third positioning boss 134, the third positioning boss 134 is located between the second positioning boss 133 and the first micro-motion ball head 131, and the orthographic projection of the third positioning boss 134 on the second positioning boss 133 is located in the second positioning boss 133.

[0054] The size of the third positioning boss 134 is smaller than the size of the second positioning boss 133, so as to ensure that the third positioning boss 134 can smoothly extend into the inside of the installation slot 113, and the surface of the third positioning boss 134 away from the second positioning boss 133 is a reference surface, and whether the micro-motion component 130 is installed in place is confirmed by detecting whether the reference surface is flush with the end surface of the shell 110 during installation of the micro-motion component 130.

[0055] Please refer to Figure 2 and Figure 5 Optionally, in an implementable manner of the embodiment of the present disclosure, the side wall of the shell 110 is provided with a fastening hole, the fastening hole is in communication with the installation slot 113, and the light adjusting device 100 further includes a fastening screw 140, the fastening screw 140 is threadedly connected with the fastening hole and abuts against the first positioning boss 123.

[0056] The fastening screw 140 limits the movement of the double-threaded screw 120, so as to prevent the double-threaded screw 120 from rotating when the double-threaded screw 120 is vibrated after the light adjusting module 300 completes light adjustment. For example, the fastening screw 140 is a self-tapping screw.

[0057] Please refer to Figure 3 Optionally, in an implementable manner of the embodiment of the present disclosure, the opposite two end surfaces of the double-threaded screw 120 are respectively provided with an adjusting groove 124, the adjusting groove 124 is configured to be adapted to a tightening tool, so as to facilitate installation or rotation of the double-threaded screw 120 by using the tightening tool during light adjustment.

[0058] For example, the adjusting groove 124 is in the shape of a straight line or a cross, so as to adapt to most of the tightening tools on the market.

[0059] The installation steps of the above light adjusting device 100 are as follows: firstly, the double-threaded screw 120 is installed into the installation slot 113 of the shell 110, the first threaded section 121 is screwed into the first threaded hole in communication with the installation slot 113 through the adjusting groove 124 close to the second threaded section 122; then, the second positioning boss 133 of the micro-motion component 130 is extended into the installation slot 113, and the second threaded section 122 is screwed into the second threaded hole of the micro-motion component 130 through the adjusting groove 124 close to the first threaded section 121; finally, the double-threaded screw 120 is adjusted through the adjusting groove 124 close to the first threaded section 121, so that the upper surface of the third positioning boss 134 of the micro-motion component 130 is flush with the first surface 111 of the shell 110.

[0060] Please refer to Figure 6 The embodiment of the present disclosure further discloses a dimming system 200, which comprises the dimming device 100 according to any one of the preceding embodiments.

[0061] The dimming system 200 comprises the same structure and advantages as the dimming device 100 in the preceding embodiments. The structure and advantages of the dimming device 100 have been described in detail in the preceding embodiments, and will not be described here.

[0062] Please refer to Figure 7 Optionally, in an implementable manner of the embodiment of the present disclosure, the dimming system 200 further comprises a dimming support 210 and a fulcrum screw 220 fixed on the dimming support 210, the fulcrum screw 220 is provided with a third threaded section and a second micro-motion ball head 221 opposite to each other, the fulcrum screw 220 is connected with the to-be-dimmed module 300 through the third threaded section and connected with the dimming support 210 through the second micro-motion ball head 221, and the housing 110 of the dimming device 100 is fixedly connected with the dimming support 210.

[0063] For example, the second micro-motion ball head 221 and the dimming support 210 are connected through a ball head nut 230, the to-be-dimmed module 300 is provided with a third threaded hole, and the third threaded section is threadedly connected with the third threaded hole.

[0064] By arranging the dimming device 100 and the fulcrum screw 220, the connection between the dimming support 210 and the to-be-dimmed module 300 is achieved, and the dimming device 100 and the fulcrum screw 220 are respectively provided with the first micro-motion ball head 131 and the second micro-motion ball head 221, so that the to-be-dimmed module 300 can rotate around the connecting line between the fulcrum screw 220 and another dimming device 100 under the rotation adjustment of the dimming device 100, and dimming is achieved. It should be noted that the to-be-dimmed module 300 is provided with at least two dimming devices 100.

[0065] Please refer to Figure 5 and Figure 7 Optionally, in an implementable manner of the embodiment of the present disclosure, the housing 110 is provided with a limiting boss 114 around one end of the micro-motion component 130 of the dimming device 100, and is provided with at least two clamping legs 115 close to one end of the micro-motion component 130, the clamping legs 115 are arranged to be inclined to the limiting boss 114, and the clamping legs 115 are configured to move towards the housing 110 under stress and can recover after the external force disappears.

[0066] At least two clamping legs 115 are arranged around the shell 110, a first end of the clamping leg 115 is connected with an end of the shell 110, and a second end opposite to the first end extends towards the limiting boss 114 and is inclined outwards to be separated from the side wall of the shell 110. The clamping leg 115 is elastically deformed and stores energy under force, and under the driving of an external force, the second end of the clamping leg 115 moves towards the shell 110, and the clamping leg 115 restores after the external force disappears. The clamping leg 115 cooperates with the limiting boss 114, and the shell 110 of the light adjusting device 100 can be clamped on the light adjusting support 210.

[0067] Optionally, in an implementable manner of an embodiment of the present disclosure, the light adjusting support 210 is provided with a first through hole, and the shell 110 and the first through hole are both polygonal columns, and the outer wall of the shell 110 cooperates with the first through hole.

[0068] The size of the outer wall of the shell 110 is equal to or slightly smaller than the size of the first through hole, so as to ensure that the shell 110 can be smoothly installed in the first through hole; the shell 110 and the first through hole are both polygonal columns, which can prevent the shell 110 from rotating in the first through hole.

[0069] Optionally, in an implementable manner of an embodiment of the present disclosure, the outer wall of the shell 110 is provided with an anti-rotation rib, the light adjusting support 210 is provided with a second through hole, and the inner wall of the second through hole is provided with an anti-rotation groove cooperating with the anti-rotation rib.

[0070] The size of the outer wall of the shell 110 is equal to or slightly smaller than the size of the second through hole, so as to ensure that the shell 110 can be smoothly installed in the second through hole. The extension directions of the anti-rotation rib and the anti-rotation groove are both parallel to the axis of the shell 110, and when installed, the anti-rotation rib can be inserted into the second through hole by aligning the anti-rotation groove; the anti-rotation rib is limited by the anti-rotation groove, which can prevent the shell 110 from rotating in the second through hole.

[0071] Optionally, in an implementable manner of an embodiment of the present disclosure, the light adjusting device 100 includes two, the fulcrum screw 220 and the two light adjusting devices 100 are distributed in a triangular shape on the light adjusting support 210, and when one of the light adjusting devices 100 is adjusted, the other light adjusting device 100 is taken as a rotation axis, so that the to-be-adjusted light module 300 can rotate around the rotation axis to realize up-down and left-right direction light adjustment of the to-be-adjusted light module 300.

[0072] Optionally, in an implementable manner of an embodiment of the present disclosure, the light adjusting support 210 is provided with a third through hole 211, and the to-be-adjusted light module 300 passes through the third through hole 211, so as to prevent the to-be-adjusted light module 300 from interfering with the light adjusting support 210 when installed in the light adjusting system 200.

[0073] The light adjusting method of the light adjusting system 200 is as follows: first, the fulcrum screw 220 is installed on the light adjusting support 210 through the ball nut 230, and the light adjusting device 100 is installed into the mounting hole (the first through hole or the second through hole) of the light adjusting support 210; the installation is completed when the clamping leg 115 of the light adjusting device 100 completely passes through the mounting hole, at this time, the clamping leg 115 is clamped with the limiting boss 114 of the mounting hole, so that the light adjusting device 100 cannot move axially, and the light adjusting device 100 cannot rotate axially due to the anti-rotation structure between the housing 110 of the light adjusting device 100 and the mounting hole. Then, the light module to be adjusted 300 is connected with the first micro-motion ball head 131 of the micro-motion component 130 through the ball nut 230, and the light module to be adjusted 300 is connected with the fulcrum screw 220. Finally, the adjusting groove 124 close to the first threaded section 121 is adjusted, so that the light module to be adjusted 300 reaches the required optical position, and the fastening screw 140 is screwed into the first positioning boss 123 to prevent the double-threaded screw 120 from rotating when the light module to be adjusted 300 is vibrated.

[0074] The above only describes the preferred embodiments of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A light adjusting device for adjusting a light adjusting module, characterized in that, The light adjusting device comprises a housing, a double-threaded screw, and a micro-motion component. The double-threaded screw is provided with a first thread segment and a second thread segment respectively. The thread pitch of the first thread segment is different from that of the second thread segment. The double-threaded screw is threadedly connected with the housing through the first thread segment, and is threadedly connected with the micro-motion component through the second thread segment. The micro-motion component is provided with a first micro-motion ball head at the end away from the double-threaded screw. The first micro-motion ball head is configured to be connected with the light module to be adjusted.

2. The dimming device of claim 1, wherein, The thread pitch of the first thread segment is greater than that of the second thread segment. The first thread segment and the second thread segment have the same rotation direction.

3. The dimming device according to claim 1 or 2, characterized in that The first surface of the housing is provided with a mounting groove extending into the housing. The sidewall of the double-threaded screw is provided with a first positioning boss. The first positioning boss is located between the first thread segment and the second thread segment, is matched with the mounting groove, and is accommodated in the mounting groove.

4. The dimming device of claim 3, wherein, The first thread hole is provided on the second surface of the housing opposite to the first surface and extends into the housing to communicate with the mounting groove.

5. The dimming device of claim 3, wherein, The micro-motion component further comprises a micro-motion rod. The first micro-motion ball head is provided at the end of the micro-motion rod. The second thread hole is located at the end face of the micro-motion rod away from the first micro-motion ball head and extends into the micro-motion rod.

6. The dimming device of claim 5, wherein, The sidewall of the micro-motion rod is provided with a second positioning boss. The second positioning boss is matched with the mounting groove, and the second positioning boss is accommodated in the mounting groove.

7. The dimming device of claim 6, wherein, The sidewall of the micro-motion rod is further provided with a third positioning boss. The third positioning boss is located between the second positioning boss and the first micro-motion ball head. The orthographic projection of the third positioning boss on the second positioning boss is located in the second positioning boss.

8. The dimming device of claim 3, wherein, The sidewall of the housing is provided with a fastening hole. The fastening hole communicates with the mounting groove. The light adjusting device further comprises a fastening screw. The fastening screw is threadedly connected with the fastening hole and abuts against the first positioning boss.

9. The dimming device of claim 6, wherein, The mounting groove and the second positioning boss are both polygonal columns. The inner wall of the mounting groove is adapted to the outer wall of the second positioning boss.

10. The dimming device of claim 9, wherein, The first positioning boss is a cylindrical column. The outer wall of the first positioning boss is tangent to the inner wall of the mounting groove.

11. The light adjusting device according to any one of claims 1 to 2, 4 to 10, wherein The opposite end faces of the double-threaded screw are respectively provided with adjusting grooves. The adjusting grooves are configured to be adapted to the tightening tool.

12. A dimming system characterized by, The light adjusting device comprises the light adjusting device as claimed in any one of claims 1 to 11.

13. The dimming system of claim 12, wherein, The light adjusting device further comprises a light adjusting support and a fulcrum screw fixed on the light adjusting support. The fulcrum screw is provided with a third thread segment and a second micro-motion ball head at the opposite end. The fulcrum screw is threadedly connected with the light module to be adjusted through the third thread segment and is connected with the light adjusting support through the second micro-motion ball head. The housing of the light adjusting device is fixedly connected with the light adjusting support.

14. The dimming system of claim 13, wherein, The housing is provided with a limiting boss at one end away from the micro-motion component of the light adjusting device, and at least two clamping legs are provided at one end close to the micro-motion component, the clamping legs are obliquely arranged towards the limiting boss, and the clamping legs are configured to move towards the housing after being pressed and to restore after pressure release.

15. The dimming system of claim 13, wherein, The light adjusting support is provided with a first through hole, the housing and the first through hole are both polygonal columns, and the outer wall of the housing cooperates with the first through hole.

16. The dimming system of claim 13, wherein, The outer wall of the housing is provided with an anti-rotation rib body, the light adjusting support is provided with a second through hole, and the inner wall of the second through hole is provided with an anti-rotation groove cooperating with the anti-rotation rib body.

17. The dimming system of claim 13, wherein, The light adjusting device includes two, the fulcrum screw and two light adjusting devices are distributed in a triangular shape on the light adjusting support.

18. The dimming system of claim 13, wherein, The light adjusting support is provided with a third through hole, and the light module to be adjusted passes through the third through hole.

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