CN209801260U

CN209801260U - Zooming device for moving head lamp

Info

Publication number: CN209801260U
Application number: CN201920553325.0U
Authority: CN
Inventors: 黄荣丰; 陈志曼; 凌洋
Original assignee: Guangzhou Yajiang Photoelectric Equipment Co Ltd
Current assignee: Guangzhou Yajiang Photoelectric Equipment Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2019-12-17
Anticipated expiration: 2029-04-22

Abstract

The utility model provides a zoom device for moving head lamp, including lens group, lens cone, mounting panel, first transmission and second transmission, the mounting panel is connected with the edge of second mounting panel including the first mounting panel and the second mounting panel that are vertical setting, the edge of first mounting panel, and first mounting panel and second mounting panel mutually perpendicular. The first transmission device and the second transmission device are respectively arranged on the first mounting plate and the second mounting plate, a first sliding block of the first transmission device and a second sliding block of the second transmission device are both connected with the lens barrel, the lens group and the lens barrel are coaxial, and the lens barrel is positioned below the lens group. The utility model discloses a reduced the distance between two action points of first transmission and second transmission respectively on the lens cone, reduced the influence of assembly worker difference, the phenomenon of skew focus appears when preventing to drive the lens cone, improved light effect.

Description

Zooming device for moving head lamp

Technical Field

The utility model relates to a zoom device for moving head lamp.

Background

In the stage lighting industry, higher and higher requirements are provided for the lighting effect that the moving head lamp can realize. In the moving head lamp, the zoom device is controlled to control the light effect of the light beam and the pattern, and the current zoom device controls the moving range of the lens by the transmission device. When the camera lens is heavier, two sets of transmission parts are symmetrically arranged to drive the camera lens to move, but the arrangement can cause the influence of amplification and assembly tolerance, so that the focus is deviated, and the lighting effect is adversely affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a zoom device for moving head lamp can reduce the influence of assembly worker difference, improves light effect.

Based on the above, the utility model provides a zoom device for moving head lamp, including lens group, lens cone, mounting panel, first transmission and second transmission, the mounting panel includes first mounting panel and the second mounting panel that is vertical setting, the edge of first mounting panel is connected with the edge of second mounting panel, and first mounting panel and second mounting panel are mutually perpendicular; the first transmission device comprises a first motor, a first motion assembly, a first sliding block and a first guide rail in sliding connection with the first sliding block, the first motor and the first sliding block are connected through the first motion assembly, and the first guide rail is vertically arranged on one side, close to the second mounting plate, of the first mounting plate; the lens group is connected to the first guide rail; the second transmission device comprises a second motor, a second moving assembly, a second sliding block and a second guide rail in sliding connection with the second sliding block, the second motor is connected with the second sliding block through the second moving assembly, and the second guide rail is vertically arranged on one side, close to the first mounting plate, of the second mounting plate; the first sliding block and the second sliding block are both connected with the lens barrel, the lens group and the lens barrel are coaxial, and the lens barrel is located below the lens group.

Optionally, the first moving assembly includes a first driving wheel, a first driven wheel, a first synchronous belt and a first connecting block, the first driving wheel is connected to the first motor, the first driven wheel is mounted on the first mounting plate, the first driving wheel is connected to the first driven wheel through the first synchronous belt, the first connecting block is fixed to the first synchronous belt, and the first connecting block is further connected to the first sliding block; the second motion subassembly includes the second action wheel, the second is followed driving wheel, second hold-in range and second connecting block, the second action wheel with the second motor is connected, the second from the driving wheel install in on the second mounting panel, the second action wheel with the second passes through from the driving wheel the second hold-in range is connected, the second connecting block is fixed in on the second hold-in range, the second connecting block still with the second slider is connected.

Optionally, the first connecting block is fixedly connected with the first synchronous belt through a first connecting piece, and the second connecting block is fixedly connected with the second synchronous belt through a second connecting piece.

optionally, the lens barrel further comprises a first support plate and two connecting frames, the two connecting frames are fixedly connected to the first sliding block and the second sliding block respectively, the two connecting frames are connected with the first support plate, and the first support plate is sleeved outside the lens barrel.

Optionally, the first transmission device further includes a third slider, a third moving assembly and a third motor, the third slider is slidably connected to the first guide rail, the third slider is connected to the third motor through the third moving assembly, and the lens group is fixedly connected to the third slider.

Optionally, the optical lens assembly further comprises a second support plate, the third slider is fixedly connected with the second support plate, and the lens group is fixedly connected to the second support plate.

Optionally, the first motor, the second motor and the third motor are all stepping motors.

optionally, the third motion assembly includes a third driving wheel, a third driven wheel and a third synchronous belt, the third driving wheel is connected with the third motor, the third driven wheel is installed on the first installation plate, the third driving wheel is connected with the third driven wheel through the third synchronous belt, and the third slider is fixed on the third synchronous belt.

Optionally, the third slider is fixedly connected to the third synchronous belt through a third connecting member.

Optionally, the guide rail further comprises a stopper, and the stopper is arranged at the top end of the first guide rail.

the utility model discloses a zoom for lamp of shaking head, including the lens group, the lens cone, the mounting panel, first transmission and second transmission, first mounting panel and second mounting panel are vertical setting and mutually perpendicular, first transmission and second transmission set up respectively on first mounting panel and second mounting panel, and first slider and the second slider of first transmission and second transmission hold in range the lens cone respectively and follow vertical direction linear motion, the distance between two effect points on the lens cone of first slider and second slider respectively has been reduced, reduce the influence of assembly work difference, the phenomenon of skew focus appears when preventing to drive the lens cone, light effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Description of reference numerals:

1. A lens group; 2. a lens barrel; 3. mounting a plate; 31. a first mounting plate; 32. a second mounting plate; 4. a first transmission device; 41. a first motor; 42. a first motion assembly; 421. a first drive wheel; 422. a first driven wheel; 423. a first synchronization belt; 424. a first connection block; 425. a first connecting member; 43. a first slider; 44. a first guide rail; 45. a third slider; 46. a third motion assembly; 461. a third driving wheel; 462. A third driven wheel; 463. a third synchronous belt; 464. a third connecting member; 47. a third motor; 5. a second transmission device; 51. a second motor; 52. a second motion assembly; 521. a second drive wheel; 522. a second driven wheel; 523. a second synchronous belt; 524. a second connecting block; 525. a second connecting member; 53. a second slider; 54. a second guide rail; 6. a first support plate; 7. a connecting frame; 8. a second support plate; 9. and a stop block.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 and 2, the present embodiment provides a zoom apparatus for a moving head lamp, including a lens group 1, a lens barrel 2, a mounting plate 3, a first transmission device 4 and a second transmission device 5, where the mounting plate 3 includes a first mounting plate 31 and a second mounting plate 32 both vertically disposed, an edge of the first mounting plate 31 is connected with an edge of the second mounting plate 32, and the first mounting plate 31 and the second mounting plate 32 are perpendicular to each other. The first transmission device 4 comprises a first motor 41, a first moving assembly 42, a first sliding block 43 and a first guide rail 44 connected with the first sliding block 43 in a sliding manner, the first motor 41 and the first sliding block 43 are connected through the first moving assembly 42, and the first guide rail 44 is vertically arranged on one side of the first mounting plate 31 close to the second mounting plate 32; the lens group 1 is attached to the first rail 44. The second transmission device 5 includes a second motor 51, a second moving assembly 52, a second sliding block 53 and a second guide rail 54 slidably connected to the second sliding block 53, the second motor 51 is connected to the second sliding block 53 via the second moving assembly 52, and the second guide rail 54 is vertically disposed on one side of the second mounting plate 32 close to the first mounting plate 31. The first slider 43 and the second slider 53 are both connected to the lens barrel 2, the lens group 1 and the lens barrel 2 are coaxial, and the lens barrel 2 is located below the lens group 1. During zooming, the first motor 41 starts to work, the first moving assembly 42 drives the first sliding block 43, and the first sliding block 43 drives the lens barrel 2. When the first motor 41 works, the second motor 51 also starts to work, the second moving assembly 52 drives the second sliding block 53, and the second sliding block 53 moves synchronously with the first sliding block 43, so that the first sliding block 43 and the second sliding block 53 synchronously move the lens barrel 2 in a linear motion along the vertical direction. Because first mounting panel 31 and second mounting panel 32 are mutually perpendicular, two planes of the one side that first slider 43 is connected with lens cone 2 and the one side that second slider 53 is connected with lens cone 2 are perpendicular to each other, and such structure has reduced the distance between the action point that first slider 43 and second slider 53 act on lens cone 2 respectively, reduces the influence of assembly worker difference, the problem of deviating from the focus appears when preventing to drive lens cone 2, improves light effect.

The zoom device for the moving head lamp of the embodiment further comprises a first support plate 6 and two connecting frames 7, the two connecting frames 7 are respectively and fixedly connected to the first sliding block 43 and the second sliding block 53, the two connecting frames 7 are both connected with the first support plate 6, and the first support plate 6 is sleeved outside the lens barrel 2. Two link 7 drive first support 6 and move along vertical direction when zooming, set up two link 7, and two link 7 are used in the action point position on first support 6, and the structure that sets up like this has reduced the distance of being used in on first support 6, reduces the influence of assembly worker difference, the problem of skew focus appears when preventing to drive lens cone 2, improves light effect. The zoom device for the moving head lamp of the embodiment further comprises a second support plate 8, the third slider 45 is fixedly connected with the second support plate 8, and the lens group 1 is fixedly connected to the second support plate 8.

referring to fig. 2, in the present embodiment, the first moving assembly 42 includes a first driving wheel 421, a first driven wheel 422, a first synchronous belt 423 and a first connecting block 424, the first driving wheel 421 is connected to the first motor 41, the first driven wheel 422 is mounted on the first mounting plate 31, the first driving wheel 421 and the first driven wheel 422 are connected through the first synchronous belt 423, the first connecting block 424 is fixed on the first synchronous belt 423, and the first connecting block 424 is further connected to the first sliding block 43; the second moving assembly 52 includes a second driving wheel 521, a second driven wheel 522, a second timing belt 523 and a second connecting block 524, the second driving wheel 521 is connected to the second motor 51, the second driven wheel 522 is mounted on the second mounting plate 32, the second driving wheel 521 is connected to the second driven wheel 522 through the second timing belt 523, the second connecting block 524 is fixed to the second timing belt 523, and the second connecting block 524 is further connected to the second slider 53. The first connecting block 424 is fixedly connected with the first synchronous belt 423 through a first connecting piece 425, and the second connecting block 524 is fixedly connected with the second synchronous belt 523 through a second connecting piece 525. When zooming, the first motor 41 drives the first driving wheel 421 to rotate, the first driving wheel 421 drives the first driven wheel 422 to rotate through the first synchronous belt 423, the first synchronous belt 423 further drives the first connecting block 424 to move linearly along the vertical direction, and therefore the first connecting block 424 drives the first sliding block 43 to slide on the first guide rail 44 through the first connecting piece 425. In this embodiment, the second moving assembly 52 has a similar structure to the first moving assembly 42, and the second connecting block 524 drives the second sliding block 53 to slide on the second guiding rail 54 through the second connecting member 525 by a similar operation principle, so as to realize the synchronous movement of the first sliding block 43 and the second sliding block 53.

In addition, the first transmission device 4 further includes a third slider 45, a third moving assembly 46 and a third motor 47, the third slider 45 is slidably connected to the first guide rail 44, the third slider 45 is connected to the third motor 47 through the third moving assembly 46, and the lens group 1 is fixedly connected to the third slider 45. The third motor 47 drives the third slider 45 to slide on the first guide rail 44 through the third moving assembly 46, so that the third slider 45 drives the lens group 1 to move linearly along the vertical direction, thereby enlarging the range of the focal length and adapting the zoom device to meet more requirements. The third moving assembly 46 includes a third driving wheel 461, a third driven wheel 462 and a third timing belt 463, the third driving wheel 461 is connected to the third motor 47, the third driven wheel 462 is mounted on the first mounting plate 31, the third driving wheel 461 is connected to the third driven wheel 462 through the third timing belt 463, and the third slider 45 is fixed to the third timing belt 463. The third slider 45 is fixedly connected to the third timing belt 463 through a third connecting member 464. Similar to the operation principle of the first moving assembly 42 and the second moving assembly 52, the third timing belt 463 drives the third sliding block 45 to move linearly in the vertical direction through the third connecting member 464. In this embodiment, the zoom apparatus for a moving head lamp of this embodiment further comprises a stopper 9, and the stopper 9 is disposed at the top end of the first guide rail 44. The stopper 9 can limit the range of movement of the third slider 45 in the vertical direction, preventing the third slider 45 from slipping off the first guide rail 44.

In the present embodiment, the first motor 41, the second motor 51, and the third motor 47 are all stepping motors.

The zooming device for the moving head lamp of the embodiment reduces the influence of assembly tolerance by reducing the distance between action points on the lens cone 2, prevents the phenomenon of deviating focus when the lens cone 2 is driven, and improves the light effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A zooming device for a moving head lamp is characterized by comprising a lens group, a lens cone, a mounting plate, a first transmission device and a second transmission device;

The mounting plates comprise a first mounting plate and a second mounting plate which are vertically arranged, the edge of the first mounting plate is connected with the edge of the second mounting plate, and the first mounting plate and the second mounting plate are perpendicular to each other;

The first transmission device comprises a first motor, a first motion assembly, a first sliding block and a first guide rail in sliding connection with the first sliding block, the first motor and the first sliding block are connected through the first motion assembly, and the first guide rail is vertically arranged on one side, close to the second mounting plate, of the first mounting plate; the lens group is connected to the first guide rail;

The second transmission device comprises a second motor, a second moving assembly, a second sliding block and a second guide rail in sliding connection with the second sliding block, the second motor is connected with the second sliding block through the second moving assembly, and the second guide rail is vertically arranged on one side, close to the first mounting plate, of the second mounting plate;

The first sliding block and the second sliding block are both connected with the lens barrel, the lens group and the lens barrel are coaxial, and the lens barrel is located below the lens group.

2. The zoom apparatus for moving head light according to claim 1, wherein the first motion assembly comprises a first driving wheel, a first driven wheel, a first synchronous belt and a first connecting block, the first driving wheel is connected with the first motor, the first driven wheel is mounted on the first mounting plate, the first driving wheel and the first driven wheel are connected through the first synchronous belt, the first connecting block is fixed on the first synchronous belt, and the first connecting block is further connected with the first sliding block; the second motion subassembly includes the second action wheel, the second is followed driving wheel, second hold-in range and second connecting block, the second action wheel with the second motor is connected, the second from the driving wheel install in on the second mounting panel, the second action wheel with the second passes through from the driving wheel the second hold-in range is connected, the second connecting block is fixed in on the second hold-in range, the second connecting block still with the second slider is connected.

3. Zoom apparatus for moving head light according to claim 2, wherein the first connecting block is fixedly connected to the first timing belt through a first connecting member, and the second connecting block is fixedly connected to the second timing belt through a second connecting member.

4. The zoom device for moving head light according to claim 1, further comprising a first support plate and two connecting frames, wherein the two connecting frames are respectively and fixedly connected to the first slider and the second slider, the two connecting frames are both connected to the first support plate, and the first support plate is sleeved outside the lens barrel.

5. The zoom apparatus for moving head light according to claim 1, wherein the first transmission further comprises a third slider, a third moving assembly and a third motor, the third slider is slidably connected to the first rail, the third slider is connected to the third motor through the third moving assembly, and the lens assembly is fixedly connected to the third slider.

6. the zoom apparatus for a moving head lamp as claimed in claim 5, further comprising a second support plate, wherein said third slider is fixedly connected to said second support plate, and said lens group is fixedly connected to said second support plate.

7. Zoom apparatus for moving head lamps according to claim 5, characterized in that the first motor, the second motor and the third motor are all stepper motors.

8. Zoom apparatus for moving head light according to claim 5, wherein said third moving assembly comprises a third driving wheel, a third driven wheel and a third synchronous belt, said third driving wheel is connected to said third motor, said third driven wheel is mounted on said first mounting plate, said third driving wheel is connected to said third driven wheel through said third synchronous belt, and said third sliding block is fixed on said third synchronous belt.

9. Zoom apparatus for moving head light according to claim 8, wherein the third slider is fixedly connected to the third timing belt through a third connecting member.

10. Zoom apparatus for moving head light according to claim 1, further comprising a stopper disposed at a top end of the first guide rail.