Prism focusing stroke frame of stage lamp

Abstract

The utility model provides a stage lamp prism focusing stroke rack, including mounting back plate, moving plate, lift subassembly, first motor and prism, the prism is installed on one side of moving plate and the prism is located the light path of stage lamp, lift subassembly drives moving plate up and down, lift subassembly and first motor transmission connection, and the first motor is driven by the lift subassembly. And the first motor is mounted on the mounting back plate. When the first motor is started, the lifting assembly is driven and the moving plate is driven to move up and down, the prism installed on one side of the moving plate can move up and down along with the moving plate, the current situation that the position of the prism is fixed is changed, focusing is achieved through up-down movement of the prism, and therefore the imaging range of the stage lamp is prevented from being limited.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lamps, in particular to a prism focusing travel frame of a stage lamp. Background Art

[0002] Prisms play the role of splitting or dispersing light beams in stage lights. Under the illumination of a light bulb, light is refracted through prisms, thereby reflecting brilliant light. In order to make prisms selectively used in stage lights, the positions of current prisms are mostly fixed, and the focal length of the prism cannot be adjusted, resulting in a limited imaging range of the stage lights, thus affecting the lighting effects on site. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a prism focusing travel frame for a stage light, which can adjust the focal length of the prism and avoid limiting the imaging range of the stage light.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A prism focusing travel frame for a stage lamp comprises a mounting back plate, a movable plate, a lifting assembly, a first motor and a prism. The prism is mounted on one side of the movable plate and is located on the optical path of the stage lamp. The lifting assembly drives the movable plate to move up and down. The lifting assembly is in transmission connection with the first motor, and the first motor is mounted on the mounting back plate.

[0006] Preferably, the lifting assembly includes a lead screw and a lead screw nut, the lead screw is fixed on the output shaft of the first motor, the lead screw nut is sleeved on the lead screw and cooperates with the lead screw thread, and the movable plate is fixedly connected to the lead screw nut.

[0007] Preferably, the lifting assembly includes a first driving wheel, a first driven wheel and a first synchronous belt. The first driving wheel and the first driven wheel are rotatably arranged on the upper and lower parts of the mounting back plate respectively. The first driving wheel is fixed on the output shaft of the first motor. The first driving wheel and the first driven wheel are connected through a first synchronous belt transmission. The movable plate is fixed on the first synchronous belt through a clip.

[0008] Preferably, the movable plate is an L-shaped plate, the prism is installed on the horizontal section of the movable plate, a slider is provided on the back of the vertical section of the movable plate, a vertical slide rail is provided on the mounting back plate, and the slider is slidably arranged on the vertical slide rail.

[0009] Preferably, it also includes a rotating shaft, the middle part of the rotating shaft passes through the movable plate, a prism mounting plate is installed on the upper end of the rotating shaft, a through hole is opened on the prism mounting plate, the prism is installed on the prism mounting plate and covers the through hole, a worm gear is sleeved on the lower end of the rotating shaft, a second motor is installed on the bottom side of the movable plate, the output shaft of the second motor is fixedly connected to the worm, and the worm gear and the worm are meshingly transmitted.

[0010] Preferably, the prism is rotatably mounted on a prism mounting plate, a gear ring is provided on the prism outer sleeve, a first gear is provided on the upper part of the rotating shaft and below the prism mounting plate, the first gear is meshed with the gear ring for transmission, a third motor is installed on the bottom side of the movable plate, and the output shaft of the third motor is transmission-connected with the first gear, so that the first gear rotates on the rotating shaft and drives the gear ring to rotate.

[0011] Preferably, a second gear is provided between the gear ring and the first gear, and the first gear and the gear ring are meshed and transmitted via the second gear.

[0012] Preferably, a second driving wheel is provided on the output shaft of the third motor, a second driven wheel is fixedly provided on the bottom of the first gear, the second driven wheel is sleeved on the rotating shaft, and the second driving wheel and the second driven wheel are connected through a second synchronous belt transmission.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The prism focusing travel frame of the stage light includes an installation back plate, a moving plate, a lifting assembly, a first motor and a prism. When the first motor is started, the lifting assembly is driven and the moving plate is driven to move up and down, so that the prism installed on one side of the moving plate can move up and down with the moving plate, changing the current situation that the position of the prism is fixed. The prism is focused by moving up and down, thereby avoiding the limitation of the imaging range of the stage light. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the three-dimensional structural schematic diagrams of the prism in the use state of the first embodiment of the utility model;

[0016] Figure 2 This is a second schematic diagram of the three-dimensional structure of the prism in the use state of the first embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the prism in the unused state in the first embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the prism self-rotation structure in the first embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the lifting assembly in the second embodiment of the present utility model.

[0020] Figure ID:

[0021] 1-mounting back plate; 2-moving plate; 3-lifting assembly; 31-screw; 32-screw nut; 33-first driving wheel; 34-first driven wheel; 35-first synchronous belt; 4-first motor; 5-prism; 6-slider; 7-vertical slide rail; 8-rotating shaft; 9-prism mounting plate; 91-through hole; 10-worm gear; 11-worm; 12-second motor; 13-gear ring; 14-first gear; 15-third motor; 16-second gear; 17-second driving wheel; 18-second driven wheel; 19-second synchronous belt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Embodiment 1

[0025] See also Figures 1 to 3The utility model provides a prism focusing travel frame for a stage light, comprising a mounting back plate 1, a moving plate 2, a lifting assembly 3, a first motor 4 and a prism 5. The prism 5 is mounted on one side of the moving plate 2 and is located on the optical path of the stage light. The lifting assembly 3 drives the moving plate 2 to move up and down. The lifting assembly 3 is in transmission connection with the first motor 4, and the first motor 4 is mounted on the mounting back plate 1. When in use, the prism focusing travel frame for the stage light is mounted in the stage light. When the first motor 4 is started, the lifting assembly 3 is driven and drives the moving plate 2 to move up and down, so that the prism 5 mounted on one side of the moving plate 2 can move up and down with the moving plate 2, changing the current situation that the position of the prism 5 is fixed. The prism 5 is focused by moving up and down, thereby avoiding the limitation of the imaging range of the stage light.

[0026] Specifically, in this embodiment, the lifting assembly 3 includes a lead screw 31 and a lead screw nut 32. The lead screw 31 is fixed on the output shaft of the first motor 4. The lead screw nut 32 is sleeved on the lead screw 31 and is threadedly matched with the lead screw 31. The moving plate 2 is fixedly connected to the lead screw nut 32. When the first motor 4 is started, the lead screw 31 is driven to rotate. The rotation of the lead screw 31 drives the lead screw nut 32 to move up and down, thereby causing the moving plate 2 fixedly connected to the lead screw nut 32 to move up and down, thereby achieving the focusing of the prism 5.

[0027] Preferably, see Figure 2 The movable plate 2 is an L-shaped plate, the prism 5 is mounted on the horizontal section of the movable plate 2, a slider 6 is provided on the back of the vertical section of the movable plate 2, a vertical slide rail 7 is provided on the mounting back plate 1, and the slider 6 is slidably arranged on the vertical slide rail 7. By providing the vertical slide rail 7 and the slider 6, the slider 6 is connected to the movable plate 2, so that the movable plate 2 slides along the vertical slide rail 7 when the lifting assembly 3 drives the movable plate 2 to move upward and downward, so as to avoid the movable plate 2 from being offset when being lifted and downward, thereby ensuring that the prism 5 moves along the optical path direction.

[0028] Preferably, it also includes a rotating shaft 8, the middle part of which passes through the movable plate 2, a prism mounting plate 9 is installed on the upper end of the rotating shaft 8, a through hole 91 is opened on the prism mounting plate 9, the prism 5 is installed on the prism mounting plate 9, the prism 5 covers the through hole 91, and the function of the through hole 91 is to allow light to pass through the prism 5, a worm gear 10 is sleeved on the lower end of the rotating shaft 8, and a second motor 12 is installed on the bottom side of the movable plate 2, the output shaft of the second motor 12 is fixedly connected to the worm 11, and the worm gear 10 and the worm 11 are meshed for transmission. When the second motor 12 is started, the rotating shaft 8 is driven to rotate through the transmission action of the worm gear 10 and the worm 11, and the rotating shaft 8 rotates while driving the prism mounting plate 9 thereon, and the prism mounting plate 9 can rotate horizontally around the rotating shaft 8, thereby changing the position of the prism 5 on the prism mounting plate 9. See Figure 1 When the prism 5 is needed, the second motor 12 drives the rotating shaft 8 to rotate, and the prism mounting plate 9 and the prism 5 rotate horizontally around the rotating shaft 8 to the optical path; see Figure 3When the prism 5 is not needed, the second motor 12 drives the rotating shaft 8 to rotate, and the prism mounting plate 9 and the prism 5 rotate horizontally around the rotating shaft 8 to leave the light path. By setting the rotating shaft 8, the prism mounting plate 9, the worm gear 10, the worm 11 and the second motor 12, the prism 5 can be selectively applied to the light path to achieve the refraction effect and non-refraction switching of the stage light, thereby increasing the functionality of the stage light.

[0029] In this embodiment, the prism 5 is mounted on the bottom surface of the prism mounting plate 9, and can actually be installed on the top surface of the prism mounting plate 9. The prism 5 can be fixedly mounted on the bottom of the prism mounting plate 9, or can be rotatably set on the bottom of the prism mounting plate 9.

[0030] Furthermore, a prism self-rotation structure is provided on the focusing travel frame, which can realize the self-rotation of the prism, so that the refracted light has the effect of self-rotation, further increasing the functionality of the stage light, and the emitted light is not dull, and the prism self-rotation function can be used according to needs. Specifically, the prism 5 is rotatably mounted on the prism mounting plate 9, and a gear ring 13 is provided on the outer sleeve of the prism 5. A first gear 14 is provided on the upper part of the rotating shaft 8 and located below the prism mounting plate 9. The first gear 14 is meshed with the gear ring 13 for transmission. A third motor 15 is installed on the bottom side of the moving plate 2, and the output shaft of the third motor 15 is connected to the first gear 14 for transmission, so that the first gear 14 rotates on the rotating shaft 8 and drives the gear ring 13 to rotate. Start the third motor 15, the third motor 15 drives the first gear 14 to rotate on the rotating shaft 8, and the first gear 14 is meshed with the gear ring 13, so that the gear ring 13 and the prism 5 rotate on the prism mounting plate 9, thereby making the refracted light have the effect of self-rotation.

[0031] Preferably, see Figure 4 , a second gear 16 is provided between the gear ring 13 and the first gear 14, and the first gear 14 and the gear ring 13 are meshed and transmitted through the second gear 16. By providing the second gear 16, the transmission efficiency between the gear ring 13 and the first gear 14 is improved, and the provision of the second gear 16 is conducive to achieving the same direction rotation of the output shaft of the third motor 15 and the prism 5, the output shaft of the third motor 15 and the gear ring 1, the prism 5, and the first gear 14 have the same rotation direction, and the second gear 16 and the first gear 14 have opposite rotation directions. If only the gear ring 13 and the first gear 14 are provided, and the second gear 16 is not provided, the gear ring 13 and the first gear 14 have opposite rotation directions.

[0032] Preferably, a second driving wheel 17 is provided on the output shaft of the third motor 15, a second driven wheel 18 is fixedly provided at the bottom of the first gear 14, the second driven wheel 18 is sleeved on the rotating shaft 8, and the second driving wheel 17 and the second driven wheel 18 are connected by a second synchronous belt 19. The second driving wheel 17 is driven to rotate by the third motor 15, and the second driven wheel 18 is synchronized with the second driving wheel 17 through the second synchronous belt 19. Since the second driven wheel 18 is fixed to the bottom of the first gear 14 and sleeved on the rotating shaft 8, the first gear 14 rotates together when the second driven wheel 18 rotates, thereby driving the gear ring 1 and the prism 5 to rotate.

[0033] Embodiment 2

[0034] See also Figure 5 The prism focusing travel frame of this embodiment adopts another lifting assembly 3, which includes a first driving wheel 33, a first driven wheel 34 and a first synchronous belt 35. The first driving wheel 33 and the first driven wheel 34 are rotatably arranged on the upper part and the lower part of the mounting back plate 1 respectively. The first driving wheel 33 is fixed on the output shaft of the first motor 4. The first driving wheel 33 and the first driven wheel 34 are connected by the first synchronous belt 35. The moving plate 2 is fixed on the first synchronous belt 35 by a clip. The first driving wheel 33 is driven by the first motor 4 to rotate, and the first driven wheel 34 is synchronized with the first driving wheel 33 through the first synchronous belt 35. Since the moving plate 2 is fixed on the first synchronous belt 35 by the clip, when the first synchronous belt 35 rotates, the moving plate 2 moves up and down relative to the mounting back plate 1 to realize the lifting and lowering of the moving plate 2, thereby driving the prism 5 to move up and down to realize the focusing of the prism 5.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prism focusing travel frame for a stage lamp, characterized in that: The invention comprises a mounting back plate (1), a movable plate (2), a lifting assembly (3), a first motor (4) and a prism (5), wherein the prism (5) is mounted on one side of the movable plate (2) and the prism (5) is located on the optical path of a stage light, the lifting assembly (3) drives the movable plate (2) to move up and down, the lifting assembly (3) is in transmission connection with the first motor (4), and the first motor (4) is mounted on the mounting back plate (1).

2. The prism focusing travel frame of the stage light according to claim 1, characterized in that: The lifting assembly (3) comprises a lead screw (31) and a lead screw nut (32); the lead screw (31) is fixed on the output shaft of the first motor (4); the lead screw nut (32) is sleeved on the lead screw (31) and threadably matched with the lead screw (31); and the movable plate (2) is fixedly connected to the lead screw nut (32).

3. The prism focusing travel frame of the stage light according to claim 1, characterized in that: The lifting assembly (3) comprises a first driving wheel (33), a first driven wheel (34) and a first synchronous belt (35); the first driving wheel (33) and the first driven wheel (34) are rotatably arranged on the upper part and the lower part of the mounting back plate (1) respectively; the first driving wheel (33) is fixed on the output shaft of the first motor (4); the first driving wheel (33) and the first driven wheel (34) are connected by transmission via the first synchronous belt (35); and the moving plate (2) is fixed on the first synchronous belt (35) via a clip.

4. The prism focusing travel frame of the stage light according to claim 1, characterized in that: The movable plate (2) is an L-shaped plate, the prism (5) is mounted on the horizontal section of the movable plate (2), a slider (6) is provided on the back of the vertical section of the movable plate (2), a vertical slide rail (7) is provided on the mounting back plate (1), and the slider (6) is slidably mounted on the vertical slide rail (7).

5. The prism focusing travel frame of the stage light according to claim 1, characterized in that: The invention also comprises a rotating shaft (8), the middle part of which passes through the movable plate (2), a prism mounting plate (9) being mounted on the upper end of the rotating shaft (8), a through hole (91) being provided on the prism mounting plate (9), the prism (5) being mounted on the prism mounting plate (9) and covering the through hole (91), a worm gear (10) being sleeved on the lower end of the rotating shaft (8), a second motor (12) being mounted on the bottom side of the movable plate (2), an output shaft of the second motor (12) being fixedly connected to a worm gear (11), and the worm gear (10) and the worm gear (11) being meshed for transmission.

6. The prism focusing travel frame of the stage light according to claim 5, characterized in that: The prism (5) is rotatably mounted on the prism mounting plate (9); a gear ring (13) is provided on the outer sleeve of the prism (5); a first gear (14) is provided on the upper part of the rotating shaft (8) and below the prism mounting plate (9); the first gear (14) is meshed with the gear ring (13) for transmission; a third motor (15) is installed on the bottom side of the movable plate (2); an output shaft of the third motor (15) is transmission-connected with the first gear (14) so ​​that the first gear (14) rotates on the rotating shaft (8) and drives the gear ring (13) to rotate.

7. The prism focusing travel frame of the stage light according to claim 6, characterized in that: A second gear (16) is provided between the gear ring (13) and the first gear (14), and the first gear (14) and the gear ring (13) are meshed and transmitted via the second gear (16).

8. The prism focusing travel frame of the stage light according to claim 6, characterized in that: A second driving wheel (17) is provided on the output shaft of the third motor (15); a second driven wheel (18) is fixedly provided at the bottom of the first gear (14); the second driven wheel (18) is sleeved on the rotating shaft (8); and the second driving wheel (17) and the second driven wheel (18) are connected in transmission via a second synchronous belt (19).

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