CN204005752U - The eyeglass transmission component of stage lighting - Google Patents

Abstract

The lens transmission assembly of the stage light includes a frame; a mounting plate on which a light transmission hole is arranged; a first drive assembly for driving the mounting plate to move relative to the frame along the optical axis of the stage light source, the first drive assembly It includes a first motor, a transmission screw, and a screw nut; a lens pivotally connected to the mounting plate and facing the light-transmitting hole; a lens for driving the lens to rotate around the optical axis or a line parallel to the optical axis relative to the mounting plate The second drive assembly, the second drive assembly includes a second motor whose body is fixed on the mounting plate, the rotation shaft of the second motor is synchronously coupled with the lens, and the second motor and its rotation shaft are provided with a drive screw to pass through Through the pivot hole, the transmission screw rod is movably connected in the pivot hole. The utility model can arrange the two motors that drive the axial movement of the mounting plate and the rotation of the lens at different positions on the same axis, and can avoid mutual interference when the two motors work, thereby effectively reducing the volume of the stage light.

Description

Lens transmission components of stage lights

technical field

The utility model relates to the technical field of stage lighting, in particular to a lens transmission assembly of a stage light.

Background technique

At present, in order to meet the requirements of stage performances, more lenses are required inside the stage lights, and these lenses cooperate with each other to enable the stage lights to output more dazzling and diverse light and shadow effects.

When the stage light outputs light and shadow, it is usually required that the lens of the stage light can rotate and move along the optical axis of the stage light source. Therefore, it is necessary to set two driving mechanisms inside the stage light to realize the rotation and axial movement of the lens. At present, in order to To avoid mutual interference between the two driving mechanisms, the two driving mechanisms are usually installed in different positions and staggered by a certain distance from each other to avoid mutual interference between the two driving mechanisms. However, this will make the stage lights exist. Larger defects.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a lens transmission assembly of a stage light, which can effectively reduce the volume of the stage light and avoid mutual interference between different driving mechanisms.

In order to achieve the above object, the utility model adopts the following technical solutions:

The lens transmission assembly of the stage light, including,

A frame fixedly connected to the shell of the stage light;

The mounting plate that is movable installed on the frame is provided with a light-transmitting hole located outside the light emitting end of the stage light source;

The first drive assembly used to drive the mounting plate to move relative to the frame along the optical axis of the stage light source, the first drive assembly includes a first motor whose body part is fixed on the frame, and is synchronously coupled to the rotation shaft of the first motor and a driving screw parallel to the optical axis of the light source, and a matching screw nut that is sleeved on the driving screw and fixedly connected with the mounting plate;

A lens pivotally connected to the mounting plate and facing the light-transmitting hole;

A second driving assembly for driving the lens to rotate around the optical axis or a line parallel to the optical axis relative to the mounting plate. The second driving assembly includes a second motor whose body is fixed on the mounting plate. The lenses are synchronously connected, and the second motor and its rotating shaft are provided with a pivot hole for the transmission screw to pass through, and the transmission screw is movably connected in the pivot hole.

The second drive assembly also includes a drive gear synchronously coupled to the rotation shaft of the second motor, and an outer ring gear fixed on the outer periphery of the lens and meshed with the drive gear.

The outer ring gear is pivotally connected to a connecting plate, the connecting plate is provided with a through hole facing the lens, and the connecting plate is installed on the mounting plate.

The lens transmission assembly of the stage light includes at least two lenses, and the outer ring gear and the connecting plate corresponding to the at least two lenses one by one, and each connecting plate is connected to the mounting plate through a pivot parallel to the mounting plate. On the mounting plate, there are at least two third driving assemblies corresponding to the connecting plate one by one, and the third driving assembly is used to drive the free end of the connecting plate around the pivot in a closed position against the mounting plate and a Rotate between open positions away from the mounting plate.

The pivot is pivotally connected to the swivel seat arranged on the mounting plate, and the third drive assembly includes a third motor whose body part is fixed on the mounting plate, a screw synchronously connected to the rotating shaft of the third motor, and a screw synchronously connected to the pivot and the helical gear engaged with the screw rod, and the pivot is fixedly connected with the connecting plate.

A limit rod corresponding to the free end of the connecting plate is arranged on the mounting plate.

The beneficial effects of the utility model are:

Compared with the prior art, the utility model can set the two motors that drive the axis of the mounting plate to move and the two motors that drive the lens to rotate at different positions on the same axis, and can avoid the mutual interference of the two motors when they work, thereby effectively reducing the The volume of the stage light is reduced; and the lens is reversibly arranged on the mounting plate, so that the lens in the non-use state will not occupy the lateral space of the stage light, thereby further facilitating the miniaturization design of the stage light.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the sectional view of A-A among Fig. 1;

Fig. 3 is the schematic diagram of the switching structure of the lens of the utility model;

Among them: 10. Rack; 11. Guide rod; 20. First motor; 21. Rotation shaft; 22. Transmission screw; 23. Screw nut; 30. Mounting plate; 31. Rotary seat; 32. Limit rod 40, the second motor; 41, the rotating shaft; 42, the driving gear; 43, the pivot hole; 50, the third motor; 51, the screw; 52, the pivot; 53, the helical gear; 60, the lens; 61, the external gear Circle; 62, connecting plate.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

As shown in Figures 1 and 2, it is a lens transmission assembly of a stage lamp of the present utility model, which includes a frame 10, a mounting plate 30, a first drive assembly, a lens 60 and a second drive assembly, wherein the frame 10 Fixedly connected inside the housing of the stage light and positioned at the front end of the stage light source, the mounting plate 30 is movably installed on the frame 10, and the mounting plate 30 is provided with a light-transmitting hole outside the light exit end of the stage light source (Fig. Not shown), the light transmission hole is used for the light of the light source to emit therefrom, and two guide rods 11 are arranged on the frame 10, and the two guide rods 11 extend along the optical axis of the stage light source, and the two guide rods The rods 11 pass through the mounting plate 30 and the two ends are respectively fixed on the bottom and the top of the frame 10 . Under the guidance of the two guide rods 11 , the mounting plate 30 can move along the optical axis. The first driving assembly is used to drive the mounting plate 30 to move, that is, to drive the mounting plate 30 to move along the optical axis. Specifically, the first driving assembly includes a first motor 20 whose body part is fixed on the bottom of the frame 10, and synchronously connected to the second motor. A driving screw 22 on the rotating shaft 21 of the motor 20 and parallel to the optical axis of the light source, and a matching screw nut 23 sleeved on the driving screw 22 and fixedly connected with the mounting plate 30, the above-mentioned driving screw The bottom end of the rod 22 is synchronously connected to the rotating shaft 21 , and the top end is pivotally connected to an extension plate fixed on the frame 10 . The lens 60 is pivotally connected to the mounting plate 30 and is facing the light transmission hole of the mounting plate 30. The second drive assembly is used to drive the lens 60 to move so that the lens 60 can be installed relative to the optical axis or a straight line parallel to the optical axis. The plate 30 rotates, and the second drive assembly specifically includes a second motor 40 whose body is fixed on the mounting plate 30. The rotating shaft 41 of the second motor 40 is synchronously coupled with the lens 60. The second motor 40 and its rotating shaft 41 are A pivot hole 43 is provided for the transmission screw rod 22 to pass through, and the transmission screw rod 22 is movably connected in the pivot hole 43. The pivot hole 43 extends from the bottom surface where the second motor 40 and the mounting plate 30 are fixed to it. On the top end surface of the rotating shaft 41, the inner diameter of the pivot hole 43 is greater than the outer diameter of the driving screw mandrel 22, so that the pivot hole 43 and the driving screw mandrel 22 are in clearance fit. Therefore, the rotation of the driving screw mandrel 22 will not interact with the rotating shaft 41. Interference; between the rotating shaft 41 of the second motor 40 and the lens 60, a gear transmission can be used to connect the two synchronously, as shown in the figure, it can be a synchronous coupling-drive Gear 42, an outer ring gear 61 is fixed on the outer periphery of the lens 60, that is, the lens 60 is embedded inside the outer ring gear 61, and the outer ring gear 61 is pivotally connected to the mounting plate 30 and meshes with the driving gear 42; the above-mentioned rotating shaft 41 can also be synchronously connected with the lens 60 through a belt drive. In a word, it only needs to ensure that the second motor 40 can drive the lens 60 to rotate.

In the above structure, the first motor 20 is used to drive the mounting plate 30 to move along the optical axis, so that the lens 60 is close to or away from the light source of the stage light, and the second motor 40 is used to drive the lens 60 to rotate. The pivot hole 43 is provided, so that the second motor 40 and the first motor 20 can be arranged at different positions on the same axis, and on the premise that they will not interfere with each other, it can effectively save the space of the stage lamp, which is conducive to the miniaturization of the stage lamp design.

In addition, in order to further reduce the volume of the stage light, in the above-mentioned structure in which the driving gear 42 drives the outer ring gear 61 to rotate, the flip structure can also be used to switch between different lenses 60, so as to avoid the horizontal size of the stage light caused by the horizontal lens 60. Too large, specifically, as shown in Figure 3, the utility model includes two lenses 60, and two corresponding external ring gears 61 and two connecting plates 62, the external ring gears 61 are pivotally connected to each other through a bearing On the connecting plate 62, a through hole facing the lens 60 is arranged on the connecting plate 62. The connecting plate 62 is pivotally connected to the mounting plate 30 through a pivot 52 parallel to the mounting plate 30, and the pivot 52 is pivotally connected to the mounting plate 30. One is located on the swivel seat 31 on the mounting plate 30, and the mounting plate 30 is provided with two third driving assemblies, and the two third driving assemblies are used to drive the free end of the connecting plate 62 around the pivot 52 in a position against the mounting plate. Rotate between the closed position of 30 and an open position away from the mounting plate 30, so that the lens 60 on the connecting plate 62 is turned up from the working state to the non-working state, or turned down from the non-working state to the working state. The third drive assembly specifically includes a third motor 50 whose body part is fixed on the mounting plate 30 , a screw 51 synchronously connected to the rotating shaft of the third motor 50 , and a helical gear synchronously coupled to the pivot 52 and meshed with the screw 51 53, the pivot 52 is fixedly connected with the connecting plate 62, so that the third motor 50 is started, and when the third motor 50 rotates forward, it drives the lens 60 to turn down; otherwise, when the third motor 50 reverses, it drives The mirror 60 is flipped up. Certainly, the third driving assembly may also be other mechanisms capable of driving the pivot 52 to rotate around the swivel base 31 . When the above-mentioned connecting plate 62 is in the closed position (that is, when the lens 60 is in the working state), the outer ring gear 61 meshes with the driving gear 42, and the second motor 40 is started to drive the outer ring gear 61 around the optical axis of the stage light source. Rotate relative to the connecting plate 62 .

When in use, different lenses 60 can be switched according to needs, and the lenses 60 in the non-use state can be turned over to be vertical to the mounting plate 30, so as not to occupy the horizontal space of the stage light. Of course, they can also be used at the same time To use two lenses 60, as long as the mounting heights of the two pivots 52 are staggered from each other, and the staggered height is not less than the thickness of the outer ring gear 61, so that the two lenses 60 will not interfere with each other when they are in the working state at the same time The two superimposed lenses 60 can provide more brilliant light and shadow effects. Because the utility model adopts the way of turning over the connecting plate 62 to switch the lens 60, as long as the lens 60 is turned over to a state parallel to the mounting plate 30, the central axis of the lens 60 can coincide with the optical axis of the light source or an axis parallel to the optical axis , so as to realize the precise positioning of the lens 60, the lens 60 will not deviate from the light transmission hole of the mounting plate 30, in order to better achieve this purpose, the mounting plate 30 is also provided with a limit rod corresponding to the free end of the connecting plate 62 32. When the connecting plate 62 rotates to the above-mentioned closed position, the limit rod 32 just supports the free end of the connecting plate 62, preventing the free end of the connecting plate 62 from continuing to rotate downward.

The above-mentioned technical scheme of the utility model only takes two lenses 60 as an example. Of course, the utility model can be provided with three or more lenses 60 as required, and all lenses 60 are installed on the mounting plate 30 in the above-mentioned manner. , these lenses 60 will not occupy the lateral space of the stage light, thereby reducing the volume of the stage light, which is beneficial to the miniaturization design of the stage light.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (6)

1. The lens transmission assembly of the stage light, characterized in that it includes, A frame fixedly connected to the shell of the stage light; The mounting plate that is movable installed on the frame is provided with a light-transmitting hole located outside the light emitting end of the stage light source; The first drive assembly used to drive the mounting plate to move relative to the frame along the optical axis of the stage light source, the first drive assembly includes a first motor whose body part is fixed on the frame, and is synchronously coupled to the rotation shaft of the first motor and a driving screw parallel to the optical axis of the light source, and a matching screw nut that is sleeved on the driving screw and fixedly connected with the mounting plate; A lens pivotally connected to the mounting plate and facing the light-transmitting hole; A second driving assembly for driving the lens to rotate around the optical axis or a line parallel to the optical axis relative to the mounting plate. The second driving assembly includes a second motor whose body is fixed on the mounting plate. The lenses are synchronously connected, and the second motor and its rotating shaft are provided with a pivot hole for the transmission screw to pass through, and the transmission screw is movably connected in the pivot hole. 2. The lens transmission assembly of the stage light as claimed in claim 1, wherein the second drive assembly also includes a drive gear synchronously coupled to the second motor shaft, and is fixed on the outer periphery of the lens and meshes with the drive gear the outer ring gear. 3. The lens transmission assembly of the stage light as claimed in claim 2, wherein the outer ring gear is pivotally connected to a connecting plate, and the connecting plate is provided with a through hole facing the lens, and the connecting plate is installed on mounting plate. 4. The lens transmission assembly of the stage light as claimed in claim 3, characterized in that, the lens transmission assembly of the stage light comprises at least two lenses, and an outer ring gear and a connecting plate corresponding to the at least two lenses one by one , each connecting plate is connected to the mounting plate through a pivot parallel to the mounting plate, and at least two third drive assemblies corresponding to the connecting plate are arranged on the mounting plate, and the third drive assembly is used for The free end of the connecting plate is driven to rotate around the pivot between a closed position close to the mounting plate and an open position away from the mounting plate. 5. The lens transmission assembly of a stage light as claimed in claim 4, wherein the pivot is pivotally connected to a swivel seat provided on the mounting plate, and the third drive assembly includes a third drive assembly whose body part is fixed on the mounting plate. The motor, the screw rod synchronously connected to the rotation shaft of the third motor, and the helical gear synchronously connected to the pivot shaft and meshed with the screw rod, the pivot shaft is fixedly connected to the connecting plate. 6. The lens transmission assembly of a stage light according to claim 5, wherein a limit rod corresponding to the free end of the connecting plate is provided on the mounting plate.