Lamplight accessory zoom device and lamplight system thereof

Abstract

The utility model relates to a light accessory zoom device and a light system thereof, and belongs to the technical field of photography and camera shooting devices. The lamplight accessory zooming equipment comprises a support, a driving rod and a driving device, the support comprises a frame body and a movable plate movably arranged on the frame body, a light path channel is formed in the frame body, and light emitted by a light source can be emitted out through the light path channel. The driving rod is arranged on the bracket and extends along the light path channel; the movable plate is movably arranged on the driving rod in a penetrating mode. The moving plate is used for being connected with a lighting effect assembly, the driving device is in transmission connection with the driving rod, and the driving device can drive the driving rod to rotate so as to drive the moving plate on the driving rod to move in the axis extending direction of the driving rod. The distance between the lighting effect assembly and the light source is adjusted, so that the adjusting mode of the lighting effect assembly is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic equipment, in particular to a light accessory zoom device and a light system thereof. Background Art

[0002] In order to meet the needs of photography and video lighting effects, photography and video lighting are now equipped with lighting accessories such as projection tubes and Fresnel mirrors. In actual use, projection tubes, Fresnel mirrors and other lighting accessories often need to adjust the distance between the lens and the light source to achieve changes in lighting effects.

[0003] However, the current adjustment method of the light attachment is to manually pull or rotate the outer shell of the light attachment. When the size of the light attachment is relatively large, the adjustment is very troublesome, resulting in inconvenience for users. Utility Model Content

[0004] The utility model aims to solve the technical problem that the traditional light accessories have troublesome adjustment methods and cause inconvenience to users.

[0005] In order to solve the above technical problems, the utility model provides a light accessory zoom device for cooperating with a light source, the light accessory zoom device comprising: a bracket, comprising a bracket and a movable plate movably arranged on the bracket, the light source is arranged on one side of the bracket; an optical path channel is arranged in the bracket, the movable plate is located in the optical path channel, the movable plate is used to connect the light effect component, the light emitted by the light source can pass through the optical path channel and be emitted after being processed by the light effect component; a driving rod is arranged on the bracket and extends along the optical path channel; the movable plate is movably inserted into the driving rod; a driving device is transmission-connected with the driving rod, the driving device can drive the driving rod to rotate, so as to drive the movable plate on the driving rod to move along the axis extension direction of the driving rod, so as to make the light effect component on the movable plate move in the optical path channel in the bracket, thereby realizing that the distance between the light effect component and the light source is adjustable.

[0006] Optionally, the frame includes: a bottom plate, on which a first light-through hole is provided; a top plate, spaced apart from the bottom plate, on which a second light-through hole is provided, and the space between the first light-through hole and the second light-through hole forms the light path; a guide rail, one end of which is connected to the bottom plate, and the other end of the guide rail is connected to the top plate; a sliding hole matching the guide rail is provided on the movable plate, the guide rail is slidably inserted into the sliding hole, and the movable plate can move along the guide rail.

[0007] Optionally, the driving rod is arranged between the bottom plate and the top plate and is parallel to the guide rail; the driving rod is rotatably connected to the bottom plate and the top plate; the driving rod is provided with an external thread, and the movable plate is provided with a threaded hole, and the driving rod is passed through the threaded hole, so that the movable plate can be driven to move when the driving rod rotates.

[0008] Optionally, the lighting accessory zoom device includes a transmission assembly, which is arranged on the base plate; the transmission assembly is respectively connected to the driving device and the driving rod, so that the driving device can drive the driving rod to rotate through the transmission assembly.

[0009] Optionally, the transmission assembly includes a first transmission tooth, a second transmission tooth and a third transmission tooth; the first transmission tooth sleeve is arranged on the power output end of the driving device; the second transmission tooth sleeve is arranged on the driving rod; the third transmission tooth is provided with a plurality of third transmission teeth, and the plurality of third transmission teeth are arranged on the outer edge of the base plate in mesh with each other; the third transmission teeth are respectively meshed with the second transmission teeth on the driving rod and the first transmission teeth on the driving device, so that the driving device can drive the driving rod to rotate.

[0010] Optionally, the transmission assembly includes a first transmission tooth, a second transmission tooth and a synchronous belt; the first transmission tooth sleeve is arranged on the power output end of the driving device; the second transmission tooth sleeve is arranged on the driving rod; the synchronous belt is arranged on the first transmission tooth and the second transmission tooth, and the first transmission tooth on the driving device can drive the synchronous belt to rotate, and then the synchronous belt drives the second transmission tooth on the driving rod to rotate, so that the driving device can drive the driving rod to rotate.

[0011] Optionally, the light accessory zoom device includes a tensioning wheel; the tensioning wheel is movably connected to the base plate, and the tensioning wheel is located on the outside of the synchronous belt; the tensioning wheel moves toward the direction of the synchronous belt and can abut against the outer side surface of the synchronous belt so that the tensioning wheel tensions the synchronous belt.

[0012] Optionally, the driving device includes a driving motor and / or a handwheel assembly; a power output end of the driving motor and / or the handwheel assembly is transmission-connected to the driving rod to drive the driving rod to rotate.

[0013] Optionally, the handwheel assembly includes a transmission shaft connected to the drive rod, a first bevel tooth arranged on the transmission shaft, a second bevel tooth meshing with the first bevel tooth, and a handwheel fixed on the second bevel tooth; the handwheel can drive the second bevel tooth to rotate and drive the transmission shaft on the first bevel tooth to rotate.

[0014] The present application also provides a lighting system, comprising: a light source; a light effect component, used to perform light effect processing on the light emitted by the light source; the lighting accessory zoom device as described above, wherein the light effect component is fixed on the movable plate and can move with the movable plate; the light source is installed at the rear end of the lighting accessory zoom device, and the light emitted by the light source can enter the optical path channel from the rear end of the lighting accessory zoom device and be emitted after passing through the light effect component.

[0015] Optionally, the light effect component is a Fresnel mirror, and the Fresnel mirror is fixed on the movable plate.

[0016] Optionally, the light effect component is a projection tube, which includes a sleeve and a lens group, one end of the sleeve is fixed to the movable plate, and the other end of the sleeve extends out of the frame along the optical path; an opening is provided at the end of the sleeve extending out of the frame, and the lens group is connected to the sleeve through the opening.

[0017] It can be seen from the above technical solution that the beneficial effects of the utility model are:

[0018] The present application provides a light accessory zoom device and a light system, wherein the light accessory zoom device comprises a bracket, a driving rod and a driving device. The bracket comprises a frame body and a movable plate movably arranged on the frame body, wherein a light path channel is arranged in the frame body, and light emitted by the light source can be emitted through the light path channel. The driving rod is arranged on the bracket, and the movable plate is movably mounted on the driving rod, and the movable plate is located in the light path channel. The movable plate is used to connect the light effect component, and the driving device is connected to the driving rod in a transmission manner to drive the movable plate to move along the extension direction of the driving rod in the frame body, so that the light effect component moves in the light path channel in the frame body, so as to adjust the distance between the light effect component and the light source. It is no longer necessary to manually pull or rotate the outer shell of the light effect component, and the adjustment method is very simple and very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the lighting system in this embodiment.

[0020] Figure 2 for Figure 1 Side view of the lighting system.

[0021] Figure 3 for Figure 1 Schematic diagram of the connection structure between the light accessory zoom device and the light effect component.

[0022] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the light accessory zoom device and light effect components.

[0023] Figure 5It is a schematic diagram of the three-dimensional structure of the light accessory zoom device in some embodiments.

[0024] Figure 6 for Figure 5 Schematic cross-sectional view of the zoom device of the light attachment.

[0025] Figure 7 for Figure 5 Schematic diagram of the exploded structure of the light accessory zoom device.

[0026] Figure 8 for Figure 5 Schematic diagram of the installation structure of the transmission assembly on the midsole plate.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the light accessory zoom device in other embodiments.

[0028] Fig.10 for Fig. 9 Schematic diagram of the exploded structure of the light accessory zoom device.

[0029] Fig.11 for Fig.10 A schematic diagram of the front view of the base plate with a tensioning wheel installed.

[0030] Fig.12 It is a schematic diagram of the three-dimensional structure of the transmission connection between the drive motor, the transmission assembly and the drive rod.

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of the hand wheel, the transmission assembly and the transmission connection with the drive rod.

[0032] Fig.14 It is a schematic diagram of the three-dimensional structure of the driving motor and the hand wheel being connected with the transmission assembly and the driving rod.

[0033] Fig.15 It is a schematic diagram of the connection structure between the drive motor, the synchronous belt and the drive rod.

[0034] Fig.16 It is a schematic diagram of the connection structure between the handwheel, the synchronous belt and the drive rod.

[0035] Fig.17 It is a schematic diagram of the three-dimensional structure of the driving rod and the first transmission tooth.

[0036] Fig.18 for Fig.17 Schematic diagram of the exploded structure of the middle drive rod and the first transmission tooth.

[0037] The following are the descriptions of the reference numerals:

[0038] 100, light accessory zoom device; 110, bracket; 111, bottom plate; 1111, first light hole; 112, top plate; 1121, second light hole; 113, moving plate; 1131, third light hole; 1132, raised portion; 1133, sliding hole; 1134, threaded hole; 114, guide rail; 115, driving rod; 116, bearing; 120, driving device; 121, driving motor; 122, hand wheel assembly; 1221, transmission shaft; 1 222, first bevel gear; 1223, second bevel gear; 1224, hand wheel; 130, transmission assembly; 131, first transmission gear; 132, second transmission gear; 133, third transmission gear; 134, synchronous belt; 1341, tensioning pulley; 1342, positioning bolt; 1343, adjustment slot; 200, lighting system; 210, light source; 220, light effect assembly; 221, Fresnel mirror; 222, projection tube; 2221, sleeve; 2222, lens group. DETAILED DESCRIPTION

[0039] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0040] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] See also Figures 1 to 18 This embodiment provides a lighting system 200, which includes a light source 210, a light effect component 220 and a lighting accessory zoom device 100.

[0043] See also Figures 1 to 4In some embodiments, the light source 210 may be a photography light. The photography light may be disposed at the rear end of the light attachment zoom device 100 so that the light emitted by the light source 210 can enter from the rear end of the light attachment zoom device 100 and be emitted from the front end thereof.

[0044] See also Figures 1 to 6 In some embodiments, the light effect component 220 is fixed in the light attachment zoom device 100, and the light effect component 220 can be used to change the light effect of the light passing through the light attachment zoom device 100, so that the light can adapt to different stage scenes. Among them, the light attachment zoom device 100 can drive the light effect component 220 to move along the light path direction to change the distance between the light effect component 220 and the light source 210, thereby adjusting the light effect and providing different light effects.

[0045] See also Figures 1 to 6 In some embodiments, the light accessory zoom device 100 may include a bracket 110 and a driving device 120 .

[0046] The support 110 may include a frame and a movable plate 113. A light path may be provided in the frame, and the light emitted by the light source 210 may be emitted through the light path in the frame. The movable plate 113 may be movably arranged on the frame, and the movable plate 113 is located in the light path; the movable plate 113 is used to connect the light effect component 220, so that the light emitted by the light source 210 can be emitted after passing through the light effect component 220.

[0047] In some embodiments, the driving device 120 is in transmission connection with the movable plate 113 so that the driving device 120 can drive the movable plate 113 to move along the optical path channel in the frame, so that the light effect component 220 moves in the optical path channel in the frame and adjusts the distance between the light effect component 220 and the light source 210.

[0048] The distance between the movable plate 113 and the light source 210 is adjusted by the driving device 120, so that the distance between the light effect component 220 on the movable plate 113 and the light source 210 is changed. The user no longer needs to manually pull or rotate the outer shell of the light effect component 220. The whole adjustment process is very simple and very convenient and quick to use.

[0049] See also Figures 1 to 4In some embodiments, the light effect component 220 may be a projection tube 222. The projection tube 222 may include a sleeve 2221 and a lens group 2222; one end of the sleeve 2221 may be fixed on the movable plate 113 to move with the movable plate 113. The other end of the sleeve 2221 may extend out of the frame along the optical path, and an opening may be provided at one end of the sleeve 2221 extending out of the frame, and different types of lens groups 2222 may be installed in the sleeve 2221 through the opening on the sleeve 2221. When the driving device 120 drives the movable plate 113 to move, the projection tube 222 on the movable plate 113 may also move along the optical path to change the distance between the lens group 2222 and the light source 210, thereby achieving a change in the light effect.

[0050] See also Figure 5 and Figure 6 In some embodiments, the light effect component 220 may be a Fresnel mirror 221, which may be directly mounted on the moving plate 113 in the light accessory zoom device 100. The light emitted by the light source 210 can pass through the Fresnel mirror 221 on the moving plate 113 to effectively control the direction and focus of the light, thereby achieving the desired optical effect to adapt to some large stages.

[0051] It is conceivable that, in some other embodiments, the light effect component 220 may also be a light-focusing or light-transmitting device such as a diffuser or polarizer disposed on the movable plate 113 .

[0052] See also Figures 5 to 7 In some embodiments, the frame body of the bracket 110 includes a bottom plate 111 and a top plate 112 , and the top plate 112 is spaced apart from the bottom plate 111 .

[0053] The bottom plate 111 is located on a side close to the light source 210, and a first light hole 1111 is provided on the bottom plate 111. Light emitted from the light source 210 enters from the first light hole 1111 of the bottom plate 111. The top plate 112 is located on a side away from the light source 210. The top plate 112 is arranged opposite to the bottom plate 111, and a second light hole 1121 driving device 120 is provided on the top plate 112. The interval space between the first light hole 1111 and the second light hole 1121 driving device 120 forms a light path channel, and light is emitted from the second light hole 1121 driving device 120 after passing through the light path channel.

[0054] See also Figure 7 In some embodiments, a third light hole 1131 is provided on the movable plate 113 , and the third light hole 1131 corresponds to the first light hole 1111 and the second light hole 1121 , so that light can pass through the optical path channel in the bracket 110 .

[0055] In some embodiments, the bottom plate 111 may be composed of two plates spaced apart from each other, and the space between the two plates may be constructed to form a sandwich space to facilitate the installation of the transmission assembly.

[0056] It should be understood that in some embodiments, the shapes of the bottom plate 111, the top plate 112 and the movable plate 113 can be changed according to the type of the light effect component 220 to be connected, or the size of the light source 210 to be matched; they can be in the shape of a ring or other shapes with through holes. In addition, the shapes of the through holes between the bottom plate 111, the top plate 112 and the movable plate 113 can also be adjusted accordingly, and no specific limitation is made here.

[0057] See also Figure 6 and Figure 7 In some embodiments, the frame of the bracket 110 further includes a guide rail 114. One end of the guide rail 114 is connected to the bottom plate 111, and the other end of the guide rail 114 is connected to the top plate 112, so that the bottom plate 111 and the top plate 112 are connected and fixed to each other.

[0058] In some embodiments, a plurality of guide rails 114 may be provided, and the plurality of guide rails 114 may be spaced apart along the outer circumference of the bottom plate 111 and the top plate 112 so that the frame body forms a laterally extending columnar structure.

[0059] See also Figure 7 In some embodiments, a sliding hole 1133 matching the guide rail 114 is provided on the movable plate 113 , and the guide rail 114 is slidably inserted into the sliding hole 1133 , so that the movable plate 113 can move along the guide rail 114 .

[0060] Specifically, a plurality of protrusions 1132 are provided on the outer periphery of the moving plate 113, and the plurality of protrusions 1132 are arranged at intervals around the outer periphery of the moving plate 113. Slide sleeves matching the guide rails 114 are provided on some of the protrusions 1132 of the moving plate 113, and slide holes 1133 extending along the optical path are provided in the slide sleeves, and the inner wall of the slide holes 1133 is an optical hole. The guide rails 114 are inserted into the slide holes 1133 on the moving plate 113 to guide the sliding of the moving plate 113, so that the direction of the moving plate 113 will not deviate when it moves.

[0061] It is conceivable that, in some other embodiments, the sliding hole 1133 can be directly opened on the protrusion 1132 of the movable plate 113 , or directly opened on the plate body of the movable plate 113 , as long as it can achieve a sliding connection with the guide rail 114 .

[0062] See also Figure 7 and Fig.10In some embodiments, the light attachment zoom device 100 further includes a driving rod 115. The driving rod 115 is disposed between the bottom plate 111 and the top plate 112, and the driving rod 115 is rotatably connected to the bottom plate 111 and the top plate 112, and is parallel to the guide rail 114. The moving plate 113 is disposed on the driving rod 115, and can move along the extension direction of the driving rod 115.

[0063] The driving device 120 is connected to the driving rod 115 , and the driving device 120 can drive the driving rod 115 to rotate, so as to drive the moving plate 113 on the driving rod 115 to move along the axis extension direction of the driving rod 115 , thereby changing the distance between the light effect component 220 on the moving plate 113 and the light source 210 .

[0064] Furthermore, the driving rod 115 may be provided with an external thread, and the moving plate 113 may be provided with a threaded hole 1134. The driving rod 115 may be inserted into the threaded hole 1134 of the moving plate 113 and threadedly connected with the threaded hole 1134, so that when the driving rod 115 rotates, the moving plate 113 can be driven to move along the extension direction of the axis of the driving rod 115.

[0065] It is conceivable that the threaded hole 1134 on the moving plate 113 can be provided on the protrusion 1132 on the outer edge of the moving plate 113. Alternatively, a screw nut can be provided on the protrusion 1132, and the threaded hole 1134 can be provided on the screw nut on the protrusion 1132; or the threaded hole 1134 can be directly provided on the plate body of the moving plate 113. It is sufficient as long as the threaded connection between the moving plate 113 and the driving rod 115 can be achieved.

[0066] In some embodiments, at least two driving rods 115 are provided, and multiple driving rods 115 are circumferentially spaced around the outer edge of the bottom plate 111 or the top plate 112, and the movable plate 113 is penetrated by multiple driving rods 115, so that the driving rods 115 drive the movable plate 113 to move more stably.

[0067] See also Figures 11 to 16 In some embodiments, the light attachment zoom device 100 may further include a transmission assembly 130. The transmission assembly 130 is connected to the driving device 120 and the driving rod 115 respectively, so that the driving device 120 can drive the driving rod 115 to rotate through the transmission assembly 130.

[0068] It is conceivable that in some other embodiments, the driving device 120 can directly drive the driving rod 115 to rotate. For example, a servo motor is provided at one end of each driving rod 115, and multiple servo motors rotate synchronously to drive the moving plate 113 on the driving rod 115 to rotate. In other embodiments, the driving device 120 can also be directly set as a hydraulic cylinder, and the hydraulic cylinder directly pushes the moving plate 113 to move left and right on the guide rail 114.

[0069] See also Figure 12 to Figure 14 In some embodiments, the transmission assembly 130 includes a first transmission tooth 131 , a second transmission tooth 132 , and a third transmission tooth 133 .

[0070] The first transmission teeth 131 are sleeved on the power output end of the driving device 120. The second transmission teeth 132 are sleeved on the driving rod 115. A plurality of third transmission teeth 133 may be provided, and the plurality of third transmission teeth 133 are arranged on the outer periphery of the bottom plate 111 in meshing relationship with each other. The plurality of meshing third transmission teeth 133 are respectively meshed with the second transmission teeth 132 on the driving rod 115 and the first transmission teeth 131 on the driving device 120, so that the driving device 120 can sequentially drive the first transmission teeth 131, the third transmission teeth 133 and the second transmission teeth 132, thereby causing the plurality of driving rods 115 to rotate synchronously.

[0071] This embodiment uses a plurality of mutually meshing third transmission teeth 133 to mesh the first transmission teeth 131 on the driving device 120 with the second transmission teeth 132 on the driving rod 115, and the transmission process is stable and can adapt to high temperature environments. When it is used in some high-power photography lights, it can effectively prevent the high heat generated by the high-power light source 210 from causing deformation or damage to the transmission component 130, thereby increasing the service life of the device.

[0072] In some other embodiments, the first transmission teeth 131 , the second transmission teeth 132 and the third transmission teeth 133 may also be arranged on one side of the top plate 112 , as long as they can realize the transmission between the driving device 120 and the driving rod 115 .

[0073] See also Fig.15 and Fig.16 In some embodiments, the transmission assembly 130 may include a first transmission tooth 131 , a second transmission tooth 132 , and a synchronous belt 134 .

[0074] The first transmission teeth 131 are sleeved on the power output end of the driving device 120. The second transmission teeth 132 are sleeved on the driving rod 115. The synchronous belt 134 is arranged on the first transmission teeth 131 and the second transmission teeth 132. The inner side of the synchronous belt 134 is provided with synchronous teeth, which mesh with the first transmission teeth 131 and the second transmission teeth 132. The first transmission teeth 131 on the driving device 120 can drive the synchronous belt 134 to move, and then the synchronous belt 134 drives the second transmission teeth 132 on the driving rod 115 to rotate, so that the driving device 120 can drive multiple driving rods 115 to rotate synchronously.

[0075] In this embodiment, the synchronous belt 134 is used to drive the multiple driving rods 115 to rotate synchronously, so that the assembly structure of the transmission assembly 130 is simpler, the production cost is low, and the competitiveness of the product can be effectively improved.

[0076] It should be understood that, in some embodiments, the bottom plate 111 may be provided with an additional steering wheel, which may be disposed on the top of the bottom plate 111. The synchronous belt 134 may be sleeved on the first transmission gear 131, the second transmission gear 132 and the steering wheel, so that the synchronous belt 134 can be arranged around the first light-through hole 1111 of the bottom plate 111 to prevent the synchronous belt 134 from blocking the first light-through hole 1111 on the bottom plate 111.

[0077] See also Figures 9 to 11 In some embodiments, the light accessory zoom device 100 includes a tensioning wheel 1341. The tensioning wheel 1341 is movably connected to the bottom plate 111 and is located outside the synchronous belt 134.

[0078] When the tensioning wheel 1341 moves toward the synchronous belt 134 and squeezes the outer side of the synchronous belt 134, the tensioning wheel 134 tensions the synchronous belt 134; when the tensioning wheel 1341 moves toward a direction away from the synchronous belt 134, the tension on the synchronous belt 134 can be released.

[0079] Specifically, see Fig.10 and Fig.11, the movable plate 113 is provided with an adjustment groove 1343, which is a waist-shaped groove and extends in the horizontal direction. The tensioning wheel 1341 is movably fixed in the adjustment groove 1343 by a positioning bolt 1342, and the positioning bolt 1342 can drive the tensioning wheel 1341 to move along the adjustment groove 1343 and lock the tensioning wheel 1341 on the bottom plate 111. When the tensioning wheel 1341 moves toward the direction close to the synchronous belt 134, the tensioning wheel 1341 abuts against the outer side of the synchronous belt 134 to tension the synchronous belt 134, so that the synchronous belt 134 can drive the first transmission teeth 131 on the multiple driving rods 115 to rotate synchronously. When the tensioning wheel 1341 moves toward the direction away from the synchronous belt 134, the synchronous belt 134 is in a relaxed state, which can facilitate the user to install or remove the synchronous belt 134.

[0080] See also Fig.12 and Fig.15 In some embodiments, the driving device 120 may be a driving motor 121 .

[0081] The power output end of the driving motor 121 can be connected to the first transmission tooth 131. The driving motor 121 can drive the first transmission tooth 131 to rotate, and the first transmission tooth 131 can drive the third transmission tooth 133 or the synchronous belt 134 to rotate, and the third transmission tooth 133 or the synchronous belt 134 can drive the second transmission tooth 132 connected to the driving rod 115 to rotate, so that the driving rod 115 rotates around its own axis. By controlling the driving rod 115 through the driving motor 121, the movement of the moving plate 113 can be made more convenient.

[0082] It is conceivable that, in some other embodiments, the power output end of the driving motor 121 can be directly connected to the third transmission tooth 133, and then the second transmission tooth 132 is directly driven to rotate through the third transmission tooth 133, thereby causing the multiple driving rods 115 to rotate synchronously.

[0083] See also Fig.13 and Fig.16 In some embodiments, the driving device 120 may be a handwheel assembly 122 .

[0084] The hand wheel assembly 122 may include a transmission shaft 1221, a first bevel tooth 1222 disposed on the transmission shaft 1221, a second bevel tooth 1223 meshing with the first bevel tooth 1222, and a hand wheel 1224 fixed on the second bevel tooth 1223. The hand wheel 1224 may drive the second bevel tooth 1223 to rotate, and drive the transmission shaft 1221 on the first bevel tooth 1222 to rotate, and then drive the first transmission tooth 131 connected to the transmission shaft 1221 to rotate, so that the multiple driving rods 115 rotate synchronously.

[0085] It is conceivable that in some other embodiments, the transmission shaft 1221 may also be directly connected to the third transmission tooth 133. Alternatively, the hand wheel 1224 may be directly connected to the third transmission tooth 133, and the third transmission tooth 133 may be directly driven to rotate by rotating the hand wheel 1224, thereby rotating the second transmission tooth 132 on the driving rod 115, so that the multiple driving rods 115 rotate synchronously.

[0086] By rotating the hand wheel assembly 122 to drive the moving plate 113 to rotate, the entire design structure is simpler and the cost is lower. Compared with the solution of the drive motor 121, its cost is more competitive in the market. Compared with the traditional push-pull moving method, the method of moving by rotating the hand wheel 1224 has higher adjustment accuracy and is more labor-saving.

[0087] See also Fig.14 In some embodiments, the driving device 120 may include a driving motor 121 and a handwheel assembly 122. The driving motor 121 may be provided with a first transmission tooth 131, and the transmission shaft 1221 on the handwheel assembly 122 may be connected to the third transmission tooth 133, so that the driving motor 121 and the handwheel assembly 122 can simultaneously control the driving rod 115, so that it can be applied in different environments, thereby improving the universal performance of the device.

[0088] See also Fig.17 and Fig.18 In some embodiments, one end of the driving rod 115 is fixedly connected to the first transmission tooth 131 through a flat key pin, so that the first transmission tooth 131 is fixed to the driving rod 115, so that the first transmission tooth 131 can drive the driving rod 115 to rotate. Bearings 116 are also fixed at both ends of the driving rod 115, which are used to be rotatably connected to the bottom plate 111 and the top plate 112, so that the driving rod 115 can rotate around its own axis.

[0089] In summary, the present embodiment provides a light accessory zoom device 100 and a light system 200. The light accessory zoom device 100 includes a bracket 110 and a driving device 120. The bracket 110 includes a frame and a movable plate 113 movably disposed on the frame. An optical path is disposed in the frame, and light emitted by a light source 210 can be emitted through the optical path. The movable plate 113 is located in the optical path. The movable plate 113 is used to connect the light effect component 220. The driving device 120 is connected to the movable plate 113 to drive the movable plate 113 to move along the optical path in the frame, so that the light effect component 220 moves in the optical path in the frame to adjust the distance between the light effect component 220 and the light source 210. It is no longer necessary to manually pull or rotate the outer shell of the light effect component 220, and the adjustment method is very simple and very convenient to use.

[0090] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A light accessory zoom device, used to cooperate with a light source, characterized in that: The light attachment zoom device comprises: The bracket comprises a frame body and a movable plate movably arranged on the frame body, the light source is arranged on one side of the frame body; a light path channel is arranged in the frame body, the movable plate is located in the light path channel, the movable plate is used to connect the light effect component, and the light emitted by the light source can pass through the light path channel and be emitted after being processed by the light effect component; A driving rod is arranged on the bracket and extends along the optical path; the movable plate is movably arranged on the driving rod; A driving device is connected to the driving rod in a transmission manner. The driving device can drive the driving rod to rotate to drive the movable plate on the driving rod to move along the axis extension direction of the driving rod, so that the light effect component on the movable plate moves in the light path channel in the frame, thereby achieving an adjustable distance between the light effect component and the light source.

2. The light attachment zoom device according to claim 1, characterized in that: The frame comprises: A bottom plate, on which a first light-through hole is provided; A top plate is spaced apart from the bottom plate, a second light-through hole is provided on the top plate, and a space between the first light-through hole and the second light-through hole forms the light path channel; A guide rail, one end of which is connected to the bottom plate, and the other end of which is connected to the top plate; a sliding hole matching the guide rail is provided on the movable plate, the guide rail is slidably inserted into the sliding hole, and the movable plate can move along the guide rail.

3. The light attachment zoom device according to claim 2, characterized in that: The driving rod is arranged between the bottom plate and the top plate and is parallel to the guide rail; the driving rod is rotatably connected with the bottom plate and the top plate; the driving rod is provided with an external thread, and the movable plate is provided with a threaded hole, and the driving rod is inserted into the threaded hole, so that the movable plate can be driven to move when the driving rod rotates.

4. The light attachment zoom device according to claim 2, characterized in that: The light accessory zoom device comprises a transmission assembly, which is arranged on the bottom plate; the transmission assembly is respectively connected to the driving device and the driving rod, so that the driving device can drive the driving rod to rotate through the transmission assembly.

5. The light attachment zoom device according to claim 4, characterized in that: The transmission assembly includes a first transmission tooth, a second transmission tooth and a third transmission tooth; The first transmission gear sleeve is arranged on the power output end of the driving device; the second transmission gear sleeve is arranged on the driving rod; the third transmission teeth are provided in plurality, and the plurality of third transmission teeth are arranged in mesh with each other on the outer edge of the bottom plate; the third transmission teeth are respectively meshed with the second transmission teeth on the driving rod and the first transmission teeth on the driving device, so that the driving device can drive the driving rod to rotate.

6. The light attachment zoom device according to claim 4, characterized in that: The transmission assembly includes a first transmission tooth, a second transmission tooth and a synchronous belt; The first transmission gear sleeve is arranged on the power output end of the driving device; the second transmission gear sleeve is arranged on the driving rod; the synchronous belt is arranged on the first transmission gear and the second transmission gear, and the first transmission gear on the driving device can drive the synchronous belt to rotate, and then the synchronous belt drives the second transmission gear on the driving rod to rotate, so that the driving device can drive the driving rod to rotate.

7. The light attachment zoom device according to claim 6, characterized in that: The light accessory zoom device includes a tensioning wheel; the tensioning wheel is movably connected to the base plate, and the tensioning wheel is located on the outside of the synchronous belt; the tensioning wheel moves toward the direction of the synchronous belt and can abut against the outer side surface of the synchronous belt so that the tensioning wheel tensions the synchronous belt.

8. The light attachment zoom device according to claim 1, characterized in that: The driving device includes a driving motor and / or a handwheel assembly; the power output end of the driving motor and / or the handwheel assembly is transmission-connected to the driving rod to drive the driving rod to rotate.

9. The light attachment zoom device according to claim 8, characterized in that: The handwheel assembly includes a transmission shaft connected to the driving rod, a first bevel tooth arranged on the transmission shaft, a second bevel tooth meshing with the first bevel tooth, and a handwheel fixed on the second bevel tooth; the handwheel can drive the second bevel tooth to rotate and drive the transmission shaft on the first bevel tooth to rotate.

10. A lighting system, characterized in that: include: light source; A light effect component, used for performing light effect processing on the light emitted by the light source; According to the light accessory zoom device as described in any one of claims 1-9, the light effect component is fixed on the movable plate and can move with the movable plate; the light source is installed at the rear end of the light accessory zoom device, and the light emitted by the light source can enter the optical path channel from the rear end of the light accessory zoom device and be emitted after passing through the light effect component.

11. The lighting system according to claim 10, characterized in that: The light effect component is a Fresnel mirror, and the Fresnel mirror is fixed on the movable plate.

12. The lighting system according to claim 10, characterized in that: The light effect component is a projection tube, which includes a sleeve and a lens group. One end of the sleeve is fixed to the movable plate, and the other end of the sleeve extends out of the frame along the optical path. An opening is provided at one end of the sleeve extending out of the frame, and the lens group is connected to the sleeve through the opening.

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