Power-off locking dimming structure and stage lamp using same

Abstract

The utility model discloses a power-off locking dimming structure and a stage lamp using the same. The dimming structure comprises a connecting platform, a fixing frame, a focusing unit and a control module. The focusing unit comprises a focusing lens module, a focusing driving piece and a focusing transmission unit; the focusing driving piece comprises a focusing motor and a focusing power-off locking module; the focusing motor comprises a focusing machine shell, a focusing rotor and a focusing output shaft. The focusing power-off locking module is installed on the focusing machine shell. When the dimming structure locked in the power-off state is powered off, the focusing power-off locking module abuts against the focusing rotor to lock and fix the focusing rotor, so that the focusing rotor cannot rotate instantly, rotation of the focusing output shaft is prevented, the focusing lens module is kept at the position unchanged at the power-off moment, and the dimming effect of the dimming structure locked in the power-off state is improved. The focusing driving piece and the focusing transmission unit are prevented from continuing to move after power failure, and the effect of locking the focal length after shutdown and power failure is achieved.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting, and in particular to a dimming structure with power-off locking and a stage light using the same. Background Technology

[0002] With the development of stage lighting technology, the structure of stage lights has become more and more precise, and the operating speed of the controlled components of stage lights has also become faster and faster, thus making the switching of light effects faster, such as the rotation of the lamp head and the focusing lens, magnifying lens, and cutter inside the lamp head.

[0003] In actual use, after the stage lights are turned off, the focusing lens unit or zoom lens unit moves under the influence of gravity, causing the previously adjusted focus or magnification to change. When the lights need to be turned on again, staff need to adjust the focus or magnification in advance, increasing their workload. Utility Model Content

[0004] The purpose of this invention is to propose a power-off locking dimming structure and a stage light using it, so as to solve the problem that the focusing lens unit or zoom lens unit moves under the action of gravity after the stage light is turned off.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a dimming structure that locks in place when power is off, including a connecting platform, a fixing frame, a focusing unit and a control module;

[0007] The focusing unit includes a focusing lens module, a focusing drive component, and a focusing transmission unit.

[0008] The focusing drive includes a focusing motor and a focusing power-off locking module; the focusing motor includes a focusing housing, a focusing rotor disposed inside the focusing housing, and a focusing output shaft connected to the focusing rotor; the focusing power-off locking module is installed on the focusing housing, and in the power-off state, the focusing power-off locking module abuts against the focusing rotor to prevent the focusing rotor from rotating.

[0009] The fixed frame and the focusing drive are respectively disposed on the connecting platform. The focusing transmission unit is disposed on the inner wall of one side of the fixed frame. The focusing output shaft of the focusing drive passes through one side of the fixed frame and is connected to the focusing transmission unit. The focusing drive drives the focusing lens module to move vertically through the focusing transmission unit.

[0010] The control module is mounted on a fixed frame and is electrically connected to the focusing motor and the focusing power-off locking module, respectively, for controlling the focusing power-off locking module to lock the focusing rotor when the power is off.

[0011] In the power-off locked dimming structure, the focusing transmission unit includes a focusing moving stage, a focusing connecting plate, a focusing driven wheel, and a focusing transmission belt. The focusing driven wheel is rotatably mounted on a fixed frame, and the focusing transmission belt is sleeved on the outer periphery of the focusing output shaft and the focusing driven wheel. One end of the focusing connecting plate is connected to the focusing transmission belt, and the other end of the focusing connecting plate is connected to the focusing moving stage. The focusing lens module is mounted on the focusing moving stage.

[0012] The dimming structure with power-off locking also includes a zoom unit, which includes a zoom lens module, a zoom drive component, and a zoom transmission unit.

[0013] The zoom drive includes a zoom motor and a zoom power-off locking module; the zoom motor includes a zoom housing, a zoom rotor disposed inside the zoom housing, and a zoom output shaft connected to the zoom rotor; the zoom power-off locking module is mounted on the zoom housing, and in the power-off state, the zoom power-off locking module abuts against the zoom rotor to prevent the zoom rotor from rotating.

[0014] The zoom drive component is mounted on the connecting platform; the zoom transmission unit is mounted on the inner wall of the other side of the fixed frame, and the zoom output shaft of the zoom drive component passes through the other side of the fixed frame and is connected to the zoom transmission unit; the zoom drive component drives the zoom lens module to move vertically through the zoom transmission unit; the zoom lens module and the focusing lens module are coaxially mounted; the control module is electrically connected to the zoom motor and the zoom power-off locking module respectively, and the control module is also used to control the zoom power-off locking module to lock the zoom rotor when power is off.

[0015] In the power-off locking dimming structure, the zoom transmission unit includes a zoom moving stage, a zoom connecting plate, a zoom driven wheel, and a zoom transmission belt. The zoom driven wheel is rotatably mounted on a fixed frame, and the zoom transmission belt is sleeved on the outer periphery of the zoom output shaft and the zoom driven wheel. One end of the zoom connecting plate is connected to the zoom transmission belt, and the other end of the zoom connecting plate is connected to the zoom moving stage. The zoom lens module is mounted on the zoom moving stage.

[0016] The power-off locking dimming structure also includes a guide assembly, which includes a guide rail, a first slider, and a second slider.

[0017] The guide rail is vertically mounted on the fixed frame. The first slider and the second slider are slidably mounted on the guide rail, with the first slider located above the second slider. The first slider is connected to the zoom moving stage, and the second slider is connected to the focus moving stage.

[0018] In the power-off locking dimming structure, the connecting platform is provided with a clearance hole that matches the shape of the focusing lens module.

[0019] The dimming structure with power-off locking also includes a fixed lens unit, which includes a lens cover and a support frame. The support frame is mounted on the outer periphery of the fixed frame, and the lens cover is located on the top of the support frame. The lens cover, the zoom lens module, and the focus lens module are coaxially arranged.

[0020] This utility model also provides a stage light with focus locking after power failure, wherein the stage light adopts the above-mentioned power failure locking dimming structure.

[0021] One of the technical solutions of this utility model can have the following beneficial effects:

[0022] The focusing drive component in the power-off locking dimming structure includes a focusing motor and a focusing power-off locking module. When power is off, the focusing power-off locking module abuts against the focusing rotor to lock the focusing rotor, preventing it from rotating momentarily. This prevents the focusing output shaft from rotating, keeping the focusing lens module in its position at the moment of power failure. This prevents the focusing drive component and focusing transmission unit from continuing to move after power failure, achieving the effect of locking the focus after power failure. After power is turned on again, the stage light beam maintains the clarity of the light spot before power failure, eliminating the need to readjust the focus and reducing the workload of staff. Attached Figure Description

[0023] Figure 1 This is a front view of one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0025] Figure 3 This is a structural schematic diagram of one embodiment of the present utility model;

[0026] Figure 4 yes Figure 3 A schematic diagram of the structure on the other side of the embodiment;

[0027] In the attached diagram: 1. Connecting platform; 2. Mounting frame; 3. Focusing unit; 4. Control module; 5. Zoom unit; 6. Guide assembly; 7. Fixed lens unit;

[0028] Focusing lens module 31, focusing drive component 32, focusing transmission unit 33; zoom lens module 51, zoom drive component 52, zoom transmission unit 53; guide rail 61, first slider 62, second slider 63; lens cover 71, support frame 72;

[0029] Focusing motor 321, focusing power-off locking module 322; focusing moving stage 331, focusing connecting plate 332, focusing driven wheel 333, focusing transmission belt 334; zoom motor 521, zoom power-off locking module 522; zoom moving stage 531, zoom connecting plate 532, zoom driven wheel 533, zoom transmission belt 534. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Please refer to Figures 1-4 This utility model provides a dimming structure that locks when power is off, including a connecting platform 1, a fixing frame 2, a focusing unit 3 and a control module 4;

[0035] The focusing unit 3 includes a focusing lens module 31, a focusing drive component 32, and a focusing transmission unit 33.

[0036] The focusing drive component 32 includes a focusing motor 321 and a focusing power-off locking module 322; the focusing motor 321 includes a focusing housing, a focusing rotor disposed within the focusing housing, and a focusing output shaft connected to the focusing rotor; the focusing power-off locking module 322 is mounted on the focusing housing, and in the power-off state, the focusing power-off locking module 322 abuts against the focusing rotor to prevent the rotation of the focusing rotor;

[0037] The fixed frame 2 and the focusing drive component 32 are respectively disposed on the connecting platform 1. The focusing transmission unit 33 is disposed on one inner wall of the fixed frame 2. The focusing output shaft of the focusing drive component 32 passes through one side of the fixed frame 2 and is connected to the focusing transmission unit 33 in a transmission manner. The focusing drive component 32 drives the focusing lens module 31 to move in the vertical direction through the focusing transmission unit 33.

[0038] The control module 4 is mounted on the fixed frame 2, and is electrically connected to the focusing motor 321 and the focusing power-off locking module 322 respectively, for controlling the focusing power-off locking module 322 to lock the focusing rotor when the power is off.

[0039] The focusing drive 32 in the power-off locking dimming structure includes a focusing motor 321 and a focusing power-off locking module 322. When power is off, the focusing power-off locking module 322 abuts against the focusing rotor to lock the focusing rotor, preventing it from rotating momentarily. This prevents the focusing output shaft from rotating, keeping the focusing lens module 31 in the same position at the moment of power failure. This prevents the focusing drive 32 and the focusing transmission unit 33 from continuing to move after power failure, achieving the effect of locking the focus after power failure. After power is turned on again, the stage light beam maintains the clarity of the light spot before power failure, eliminating the need to readjust the focus and reducing the workload of the staff.

[0040] The focusing transmission unit 33 is connected to the focusing lens module 31 via a transmission. The focusing drive unit 32 drives the focusing lens module 31 to move vertically through the focusing transmission unit 33, thereby achieving the purpose of focusing. The connecting platform 1 is used to connect the focusing drive unit 32 and the fixing frame 2. The fixing frame 2 is used to connect the control module 4 and the focusing transmission unit 33.

[0041] Furthermore, in some embodiments of this utility model, the focusing power-off locking module 322 is an electromagnetic brake, and the focusing drive 32 is specifically a motor; in the power-off state, the electromagnetic brake, which is the focusing power-off locking module 322, abuts against the focusing rotor to prevent the focusing rotor from rotating relative to the stator of the focusing drive 32.

[0042] Furthermore, the electromagnetic brake can be an electromagnetic holding brake. When power is off, the electromagnetic holding brake uses the elastic force of its own spring to hold and press the focusing rotor, preventing the focusing rotor from rotating and also preventing the focusing output shaft connected to the focusing rotor from rotating, thus locking the focusing output shaft. When power is on, the electromagnet inside the electromagnetic holding brake generates magnetic force to overcome the elastic force of the spring, causing the brake shoes to separate from the focusing rotor, allowing the focusing rotor to operate normally.

[0043] Specifically, the focusing transmission unit 33 includes a focusing moving stage 331, a focusing connecting plate 332, a focusing driven wheel 333, and a focusing transmission belt 334. The focusing driven wheel 333 is rotatably mounted on the fixed frame 2, and the focusing transmission belt 334 is sleeved on the outer periphery of the focusing output shaft and the focusing driven wheel 333. One end of the focusing connecting plate 332 is connected to the focusing transmission belt 334, and the other end of the focusing connecting plate 332 is connected to the focusing moving stage 331. The focusing lens module 31 is mounted on the focusing moving stage 331.

[0044] The focusing output shaft drives the focusing driven wheel 333 to rotate via the focusing transmission belt 334, which in turn moves the focusing connecting plate 332. This, in turn, causes the focusing moving stage 331 and the focusing lens module 31 to rise or fall vertically via the focusing connecting plate 332 on the focusing transmission belt 334, thus achieving the focusing purpose. This transmission method offers high transmission accuracy, a compact structure, and reliable operation.

[0045] In a specific embodiment of this utility model, the focusing driven wheel 333 is located directly above or below the focusing output shaft, so that the focusing connecting plate 332 can move in the vertical direction.

[0046] Specifically, it also includes a zoom unit 5, which includes a zoom lens module 51, a zoom drive component 52, and a zoom transmission unit 53;

[0047] The zoom drive component 52 includes a zoom motor 521 and a zoom power-off locking module 522; the zoom motor 521 includes a zoom housing, a zoom rotor disposed inside the zoom housing, and a zoom output shaft connected to the zoom rotor; the zoom power-off locking module 522 is mounted on the zoom housing, and in the power-off state, the zoom power-off locking module 522 abuts against the zoom rotor to prevent the zoom rotor from rotating;

[0048] The zoom drive component 52 is disposed on the connecting platform 1; the zoom transmission unit 53 is disposed on the inner wall of the other side of the fixed frame 2, and the zoom output shaft of the zoom drive component 52 passes through the other side of the fixed frame 2 and is connected to the zoom transmission unit 53 in a transmission manner; the zoom drive component 52 drives the zoom lens module 51 to move in the vertical direction through the zoom transmission unit 53; the zoom lens module 51 and the focusing lens module 31 are coaxially disposed; the control module 4 is electrically connected to the zoom motor 521 and the zoom power-off locking module 522 respectively, and the control module 4 is also used to control the zoom power-off locking module 522 to lock the zoom rotor when the power is off.

[0049] The structure of the zoom drive 52 is the same as that of the focus drive 32. The working principle of the zoom drive 52 is the same as that of the focus drive 32. It can keep the zoom lens module 51 in the same position at the moment of power failure and prevent the zoom drive 52 and the zoom transmission unit 53 from continuing to move after power failure. The zoom drive 52 drives the zoom lens module 51 to move vertically through the zoom transmission unit 53, thereby achieving the purpose of zoom.

[0050] Specifically, the zoom transmission unit 53 includes a zoom moving stage 531, a zoom connecting plate 532, a zoom driven wheel 533, and a zoom transmission belt 534. The zoom driven wheel 533 is rotatably mounted on the fixed frame 2, and the zoom transmission belt 534 is sleeved on the outer periphery of the zoom output shaft and the zoom driven wheel 533. One end of the zoom connecting plate 532 is connected to the zoom transmission belt 534, and the other end of the zoom connecting plate 532 is connected to the zoom moving stage 531. The zoom lens module 51 is mounted on the zoom moving stage 531.

[0051] The structure of the zoom transmission unit 53 is the same as that of the focusing transmission unit 33. The zoom drive unit 52 drives the zoom lens module 51 to rise or fall in the vertical direction through the zoom transmission unit 53, thereby achieving the purpose of zooming. This will not be elaborated here.

[0052] Specifically, it also includes a guide component 6, which includes a guide rail 61, a first slider 62, and a second slider 63;

[0053] The guide rail 61 is vertically mounted on the fixed frame 2. The first slider 62 and the second slider 63 are slidably mounted on the guide rail 61, and the first slider 62 is located above the second slider 63. The first slider 62 is connected to the zoom moving stage 531, and the second slider 63 is connected to the focusing moving stage 331.

[0054] The cooperation of guide rail 61, first slider 62 and second slider 63 ensures that zoom moving stage 531 and focus moving stage 331 can move vertically along guide rail 61, avoids deviation in other directions during movement, reduces errors caused by vibration, and improves motion accuracy and stability.

[0055] In one specific embodiment of this utility model, the upper end of the fixing frame 2 is provided with an opening, the zoom transmission unit 53 is disposed on the left inner wall of the fixing frame 2, and the zoom drive component 52 is disposed on the left side of the fixing frame 2; the focusing transmission unit 33 is disposed on the right inner wall of the fixing frame 2, and the focusing drive component 32 is disposed on the right side of the fixing frame 2. The guide rail 61 is centrally disposed on the rear inner wall of the fixing frame 2, and the control module 4 is disposed on the rear outer wall of the fixing frame 2.

[0056] Preferably, the connecting platform 1 is provided with a clearance hole that is adapted to the shape of the focusing lens module 31.

[0057] When the zoom transmission unit 53 moves the focusing lens module 31 to its lowest point, the focusing lens module 31 passes through the clearance hole. This structure avoids interference between the focusing lens module 31 and the connecting platform 1, preventing damage to the focusing lens module 31. Simultaneously, it effectively reduces the overall length of the dimming structure, making better use of space and resulting in a smaller overall size and more compact structure for the lamp.

[0058] Specifically, it also includes a fixed lens unit 7, which includes a lens cover 71 and a support frame 72. The support frame 72 is mounted on the outer periphery of the fixed frame 2, and the lens cover 71 is disposed on the top of the support frame 72. The lens cover 71, the zoom lens module 51 and the focusing lens module 31 are coaxially arranged.

[0059] The support bracket 72 positions the lens cover 71 above the zoom lens module 51. The lens cover 71 helps to focus or adjust the direction of light propagation, making the light more concentrated or diffused. Moreover, in practical applications, the lens cover 71, in conjunction with the housing, can protect the internal structure of the lamp from the intrusion of external substances such as dust and dirt, thereby keeping the internal structure of the lamp clean and extending its service life.

[0060] This utility model also provides a stage light with focus locking after power failure, wherein the stage light adopts the above-mentioned power failure locking dimming structure.

[0061] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A dimming structure with power-off locking, characterized in that, Includes a connection platform, a mounting frame, a focusing unit, and a control module; The focusing unit includes a focusing lens module, a focusing drive component, and a focusing transmission unit. The focusing drive includes a focusing motor and a focusing power-off locking module; the focusing motor includes a focusing housing, a focusing rotor disposed inside the focusing housing, and a focusing output shaft connected to the focusing rotor; the focusing power-off locking module is installed on the focusing housing, and in the power-off state, the focusing power-off locking module abuts against the focusing rotor to prevent the focusing rotor from rotating. The fixed frame and the focusing drive are respectively disposed on the connecting platform. The focusing transmission unit is disposed on the inner wall of one side of the fixed frame. The focusing output shaft of the focusing drive passes through one side of the fixed frame and is connected to the focusing transmission unit. The focusing drive drives the focusing lens module to move vertically through the focusing transmission unit. The control module is mounted on a fixed frame and is electrically connected to the focusing motor and the focusing power-off locking module, respectively, for controlling the focusing power-off locking module to lock the focusing rotor when the power is off.

2. The dimming structure with power-off locking according to claim 1, characterized in that, The focusing transmission unit includes a focusing moving stage, a focusing connecting plate, a focusing driven wheel, and a focusing transmission belt. The focusing driven wheel is rotatably mounted on a fixed frame, and the focusing transmission belt is sleeved on the outer periphery of the focusing output shaft and the focusing driven wheel. One end of the focusing connecting plate is connected to the focusing transmission belt, and the other end of the focusing connecting plate is connected to the focusing moving stage. The focusing lens module is mounted on the focusing moving stage.

3. The dimming structure with power-off locking according to claim 1, characterized in that, It also includes a zoom unit, which includes a zoom lens module, a zoom drive component, and a zoom transmission unit; The zoom drive includes a zoom motor and a zoom power-off locking module; the zoom motor includes a zoom housing, a zoom rotor disposed inside the zoom housing, and a zoom output shaft connected to the zoom rotor; the zoom power-off locking module is mounted on the zoom housing, and in the power-off state, the zoom power-off locking module abuts against the zoom rotor to prevent the zoom rotor from rotating. The zoom drive component is mounted on the connecting platform; the zoom transmission unit is mounted on the inner wall of the other side of the fixed frame, and the zoom output shaft of the zoom drive component passes through the other side of the fixed frame and is connected to the zoom transmission unit; the zoom drive component drives the zoom lens module to move vertically through the zoom transmission unit; the zoom lens module and the focusing lens module are coaxially mounted; the control module is electrically connected to the zoom motor and the zoom power-off locking module respectively, and the control module is also used to control the zoom power-off locking module to lock the zoom rotor when power is off.

4. The dimming structure with power-off locking according to claim 3, characterized in that, The zoom transmission unit includes a zoom moving stage, a zoom connecting plate, a zoom driven wheel, and a zoom transmission belt. The zoom driven wheel is rotatably mounted on a fixed frame, and the zoom transmission belt is sleeved on the outer periphery of the zoom output shaft and the zoom driven wheel. One end of the zoom connecting plate is connected to the zoom transmission belt, and the other end of the zoom connecting plate is connected to the zoom moving stage. The zoom lens module is mounted on the zoom moving stage.

5. The dimming structure with power-off locking according to claim 4, characterized in that, It also includes a guide assembly, which includes a guide rail, a first slider, and a second slider; The guide rail is vertically mounted on the fixed frame. The first slider and the second slider are slidably mounted on the guide rail, with the first slider located above the second slider. The first slider is connected to the zoom moving stage, and the second slider is connected to the focus moving stage.

6. The dimming structure with power-off locking according to claim 3, characterized in that, The connection platform is equipped with clearance holes that are adapted to the shape of the focusing lens module.

7. The dimming structure with power-off locking according to claim 1, characterized in that, It also includes a fixed lens unit, which includes a lens cover and a support frame. The support frame is mounted on the outer periphery of the fixed frame, and the lens cover is located on the top of the support frame. The lens cover, the zoom lens module, and the focus lens module are coaxially arranged.

8. A stage light with focus locking after power failure, characterized in that, The stage light adopts the power-off locking dimming structure as described in any one of claims 1 to 7.

Images