Stage lighting cutting system convenient to position

Abstract

The invention relates to the technical field of stage lamps, in particular to a stage light cutting system convenient to position, which comprises a shell, a heat dissipation mechanism, a light source and a lens group, the heat dissipation mechanism is mounted at the bottom of a cavity of the shell, the light source is mounted on the heat dissipation mechanism, and the lens group is mounted above the light source; the LED lamp further comprises a cutting mechanism and a dimming mechanism, the cutting mechanism is installed in the cavity of the shell and located above the lens set, the cutting mechanism is used for cutting the light column so that the light column can form different light spot sections, the dimming mechanism is installed in the light outlet of the shell, and a plurality of adjustable lens units are arranged on the dimming mechanism in a matrix mode. The light beam penetrates through the plurality of lens units, and the lens units are used for diverging the passing light again, so that the light beam forms a darker spot at the corresponding position behind the lens units in the light spots on the stage; patterns projected by light columns can be edited in real time and flexibly switched, and cutting and positioning of light spots are more timely and accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of stage lights, and particularly to a stage light cutting system that is convenient for positioning. Background Art

[0002] Stage lights use condenser lenses or reflectors to converge light beams, and the light spots formed after the light beams are imaged are then cut into various different shapes such as squares, diamonds, triangles, trapezoids, etc. by a cutting mechanism, or other specific light spot patterns or patterns are projected to create a variety of different effect scenes and atmospheres. The Chinese utility model patent with the publication number CN211667742U in the prior art proposes a stage light cutting assembly. The cutting assembly includes a fixed frame and a light cutting module and a pattern color disk adjustment assembly located on the fixed frame. Both the light cutting module and the pattern color disk adjustment assembly are connected to a circuit control system. The pattern color disk adjustment assembly includes a pattern disk and a color disk rotatably connected to the frame. A number of imaging holes are evenly distributed in a circumferential manner on the pattern disk, and pattern pieces are placed in the imaging holes. A component fixing substrate rotatably connected to the fixed frame is arranged inside the fixed frame. The fixed frame includes a number of support plates horizontally arranged with the component fixing substrate. An opening for the light beam to pass through is formed in the center of the support plate. By driving the motor to drive the pattern disk and the color disk to rotate, the cutting and replacement of the light spot pattern are realized, so as to achieve the effect of having a large number of light spot patterns and being convenient for cutting and replacement.

[0003] However, the above cutting assembly can only switch the patterns preset on the pattern disk, cannot perform real-time editing on the patterns, and the number of patterns that can be switched is limited by the capacity of the pattern disk, with relatively large limitations. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a stage light cutting system that is convenient for positioning, which can perform real-time editing and flexible switching on the patterns projected by the light column, and the cutting and positioning of the light spot are more timely and accurate.

[0005] A stage lighting cutting system facilitating positioning according to the present invention comprises a housing, a heat dissipation mechanism, a light source and a lens group. A chamber is arranged inside the housing, a light outlet communicating with the chamber is arranged at the top of the housing, and a ventilation opening is arranged at the bottom of the housing. The heat dissipation mechanism is installed at the bottom of the chamber of the housing, the light source is installed on the heat dissipation mechanism, the lens group is installed above the light source, and the lens group focuses the divergent optical fibers emitted by the light source into a light column. It further comprises a cutting mechanism and a light regulating mechanism. The cutting mechanism is installed in the chamber of the housing, the cutting mechanism is located above the lens group, and the cutting mechanism is used for cutting the light column so as to form different light spot cross-sections. The light regulating mechanism is installed in the light outlet of the housing, and the light regulating mechanism is matrix-arranged with a plurality of adjustable lens units. The light column passes through the plurality of lens units, and the lens units are used for diverging the light passing through again, so that darker spots are formed at corresponding positions behind the lens units in the light spot on the stage. A roller assembly for movement and a sucker assembly for positioning are arranged at the bottom of the housing. The housing can be conveniently moved to a designated position through the roller assembly, and after reaching the designated position, the housing is fixed on the stage through the sucker assembly. During operation, the heat dissipation mechanism operates to ventilate and cool the light source, the light source is turned on to emit divergent light, the lens group converges the light into a light column and emits it towards the light outlet of the housing, the cutting mechanism acts to cut the light column, so that the cross-section of the light column changes, and the shape of the light spot on the stage changes; a plurality of designated lens units in the light regulating mechanism act, so that the lens units are converted from plane mirrors to convex lenses or concave lenses, so that the light passing through the plurality of designated lens units is diverged again, so that the light intensity of a part behind the plurality of designated lens units is weaker than that of other parts, so that bright and dark parts are formed in the cross-section of the light column. For example, when a plurality of lens units located in the center of the light regulating mechanism act, the middle part of the light column becomes darker, so as to form a light column with an annular cross-section. Similarly, more complex light spot shapes or even patterns can be realized; compared with the prior art, by controlling the actions of the designated lens units in the light regulating mechanism in real time, the pattern projected by the light column can be edited in real time, and the number of switched patterns is not limited by the capacity of the pattern disc, with better flexibility and more timely and accurate cutting and positioning of the light spots.

[0006] Preferably, the light-dimming mechanism includes a surrounding frame, a plurality of partition strips, a plurality of struts, a controller, an upper light-transmitting film, and a lower light-transmitting film. The surrounding frame is installed at the light-emitting port of the housing through a bracket. The plurality of partition strips are cross-installed in the surrounding frame. The plurality of partition strips divide the interior of the surrounding frame into a plurality of cells arranged in a matrix. The plurality of struts are respectively installed at the bottoms of the plurality of cells. The plurality of struts are telescopic. The controller is installed outside the surrounding frame. The controller is used to control the telescopic movement of the plurality of struts. The upper light-transmitting film is covered and installed on the upper end face of the surrounding frame. The lower light-transmitting film is covered and installed on the lower end face of the surrounding frame. The lower light-transmitting film is made of an elastic material. The lower light-transmitting film is connected to the plurality of partition strips. The lower end faces of the plurality of struts are in contact with the upper end face of the lower light-transmitting film. The space enclosed by the surrounding frame, the upper light-transmitting film, and the lower light-transmitting film is filled with a light-transmitting liquid. The struts can be cross-shaped, water-shaped, rice-shaped, etc. The cells divided by the plurality of partition strips and the struts therein form a lens unit. The controller is provided with a processor and a control circuit. When the controller controls the plurality of struts to be in a contracted state, both the lower light-transmitting film and the upper light-transmitting film are in a horizontal state. At this time, when the optical fiber passes through the lower light-transmitting film, the light-transmitting liquid, and the upper light-transmitting film, it will not diverge again. At this time, the light column is solid without a pattern composed of bright and dark parts. When the controller controls a specified strut to extend, since the edge of the strut is fixedly connected to the cell, the middle part of the specified strut bulges downward, causing the strut to bulge the lower light-transmitting film downward to form a spherical surface. The light-transmitting liquid fills the spherical surface formed by the lower light-transmitting film, thereby forming a convex lens structure here. When the parallel light rays in the light column pass through this convex lens structure, they are first focused and then diverge after passing through the focus, so that a darker spot is formed behind this convex lens structure. When a plurality of darker spots are arranged and combined in an orderly manner, the desired pattern is formed, and the practicability is good.

[0007] Preferably, the struts are made of shape memory metal material or piezoelectric ceramic material. When the struts are made of shape memory metal material, a plurality of heater switches are set in the controller. The heater switches control the heaters in the cells divided by the plurality of partition strips to heat the struts, so that the temperature of the specified strut changes and then undergoes telescopic changes. When the struts are made of piezoelectric ceramic material, a plurality of high-voltage circuit switches are set in the controller. The high-voltage circuit switches control the circuit to make the specified strut energized or de-energized. When the specified strut is energized, it expands and extends. The control of the struts is realized to form an adjustable lens unit.

[0008] Preferably, it further includes an expansion pot and an expansion tube. The expansion pot is installed outside the surrounding frame. A storage chamber is provided inside the expansion pot. The bottom of the expansion pot is installed with an expansion tube communicated with the storage chamber. The other end of the expansion tube extends into the surrounding frame. The expansion pot stores the light-transmitting liquid, and the liquid level of the expansion pot is higher than the upper light-transmitting film, so that the space formed by the surrounding frame, the upper light-transmitting film, and the lower light-transmitting film is filled with the light-transmitting liquid, avoiding the influence of air bubbles on the light column effect. At the same time, when the temperature changes cause the light-transmitting liquid to expand or contract, the light-transmitting liquid in the expansion pot will adaptively rise and fall, avoiding excessive shape changes of the upper light-transmitting film and the lower light-transmitting film and improving the stability of light cutting.

[0009] Preferably, it also includes a heat dissipation water tank, a circulation pipe 1 and a circulation pipe 2, the heat dissipation water tank is installed at the bottom of the heat dissipation mechanism, the input end of the circulation pipe 1 is connected to the storage chamber of the expansion pot, the output end of the circulation pipe 1 is connected to the interior of the heat dissipation water tank, the output end of the circulation pipe 2 is connected to the storage chamber of the expansion pot, and the input end of the circulation pipe 2 is connected to the interior of the heat dissipation water tank; the heat dissipation water tank is located on the cooling end of the heat dissipation mechanism to cool the light-transmitting liquid in the heat dissipation water tank, and a circulation pump is arranged on the circulation pipe 1 or the circulation pipe 2, and the circulation pump allows the light-transmitting liquid to circulate between the heat dissipation water tank and the expansion pot through the circulation pipe 1 and the circulation pipe 2, so that the light-transmitting liquid maintains a low temperature and improves reliability.

[0010] Preferably, the cutting mechanism includes two semicircular shading plates, two motors, two flip shafts and two mounting frames. The two semicircular shading plates are semicircular and are relatively arranged above the lens group. The two motors are installed in the chamber of the shell through the bracket. The two flip shafts are rotatably installed on the bracket respectively. The output shafts of the two motors are respectively connected to the two flip shafts in transmission. The two mounting frames are respectively installed on the two flip shafts, and the two semicircular shading plates are respectively installed on the two mounting frames; the two semicircular shading plates are used to block and cut the light column. The two motors drive the two flip shafts to rotate respectively, and the two flip shafts drive the two semicircular shading plates to rotate open or close through the two mounting frames, so that the light column passes through the relative gap between the two semicircular shading plates. The two semicircular shading plates cut both sides of the light column, so that the light column forms different long strip cross-sections.

[0011] Preferably, it also includes two arc tracks, four track wheels, two driving wheels and two motors II, the arc tracks are installed on the outer edges of the two semicircular shading plates, two track wheels and one driving wheel are rotatably installed on the two mounting frames, the driving wheel is located in the middle of the two track wheels, the two track wheels are rollingly connected to the outer side walls of the arc tracks, and the driving wheel is rollingly connected to the inner side walls of the arc tracks, the two motors II are respectively installed on the two mounting frames, and the output shafts of the two motors II are respectively connected to the two driving wheels in driving manner; the heights of the two semicircular shading plates are different to avoid bumps, the four track wheels and the two driving wheels respectively support the two arc tracks in a rolling manner, the two motors II respectively drive the two driving wheels to rotate, and the two driving wheels respectively drive the two arc tracks to rotate around the central axis of the lens group, so that the two semicircular shading plates perform asymmetrical cutting on the sides of the light column to form a light column with a fan-shaped cross-section, and cooperate with the pitch angles of the two semicircular shading plates to achieve a more complex light column cutting effect.

[0012] Preferably, it also includes a heat dissipation tube, which is arranged around the outside of the light source; the heat dissipation tube is arranged to reduce the outward scattering of light from the light source.

[0013] Preferably, it further includes a sleeve and a push cylinder. The sleeve is slidably sleeved on the heat dissipation cylinder, the lens group is installed on the sleeve, the fixed end of the push cylinder is connected to the heat dissipation cylinder, and the piston rod of the push cylinder is connected to the sleeve; the extension or shortening of the piston rod of the push cylinder drives the sleeve and the lens group to move up and down, adjusting the distance between the lens group and the light source to achieve different focusing effects of the light column.

[0014] Preferably, the heat dissipation mechanism includes a heat dissipation frame, a fan and a dust-proof net. The heat dissipation frame is installed at the bottom of the light source, and the fan and the dust-proof net are installed on the heat dissipation frame; the fan rotates to generate wind power, and the wind power blows on the light source to cool it down, and the dust-proof net intercepts dust and impurities to improve the heat dissipation effect of the light source.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By controlling the actions of the specified lens units in the dimming mechanism in real time, the pattern projected by the light column can be edited in real time, and the number of switched patterns is not limited by the capacity of the pattern disk, with better flexibility and more timely and accurate cutting and positioning of the light spot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a front sectional structural diagram of the present invention;

[0018] Figure 3 is an axonometric structural diagram of the present invention;

[0019] Figure 4 is a schematic structural diagram of structures such as the heat dissipation mechanism, the light source, the lens group, the cutting mechanism and the dimming mechanism;

[0020] Figure 5 is a schematic structural diagram of the heat dissipation mechanism;

[0021] Figure 6 is a schematic structural diagram of structures such as the light source, the lens group, the heat dissipation cylinder, the sleeve and the push cylinder;

[0022] Figure 7 is a schematic structural diagram of structures such as the cutting mechanism;

[0023] Figure 8 is a schematic structural diagram of the cutting mechanism in a disassembled state;

[0024] Figure 9 is a schematic structural diagram of structures such as the first motor, the turning shaft, the mounting frame, the arc track, the track wheel and the driving wheel;

[0025] Figure 10 is a schematic structural diagram of structures such as the dimming mechanism;

[0026] Figure 11 is a schematic structural diagram of the dimming mechanism in a disassembled state;

[0027] Figure 12 It is a structural schematic diagram of structures such as a surrounding frame, partition strips, support rods, and a controller, etc.

[0028] Figure 13 It is a structural schematic diagram of structures such as an expansion kettle, expansion pipe, radiator tank, first circulation pipe, second circulation pipe, etc.

[0029] Reference signs in the drawings: 1. housing; 2. heat dissipation mechanism; 3. light source; 4. lens group; 5. cutting mechanism; 6. light regulation mechanism; 7. surrounding frame; 8. partition strip; 9. support rod; 10. controller; 11. upper transparent film; 12. lower transparent film; 13. expansion kettle; 14. expansion pipe; 15. radiator tank; 16. first circulation pipe; 17. second circulation pipe; 18. semi-circular light-shielding plate; 19. first motor; 20. rotation shaft; 21. mounting bracket; 22. arc track; 23. track wheel; 24. driving wheel; 25. second motor; 26. heat dissipation cylinder; 27. sleeve; 28. push cylinder; 29. heat dissipation rack; 30. fan; 31. dust-proof net. Specific embodiments

[0030] For ease of understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0031] Embodiment 1, as shown in Figures 1 to 6 , Figure 10 , Figure 11 and Figure 12As shown in the figure, a stage lighting cutting system for easy positioning includes a housing 1, a heat dissipation mechanism 2, a light source 3, and a lens group 4. A chamber is provided inside the housing 1. An light outlet communicating with the chamber is provided at the top of the housing 1, and a ventilation opening is provided at the bottom of the housing 1. The heat dissipation mechanism 2 is installed at the bottom of the chamber of the housing 1. The light source 3 is installed on the heat dissipation mechanism 2. The lens group 4 is installed above the light source 3. The lens group 4 focuses the divergent optical fibers emitted by the light source 3 into a light column. It also includes a cutting mechanism 5 and a dimming mechanism 6. The cutting mechanism 5 is installed in the chamber of the housing 1. The cutting mechanism 5 is located above the lens group 4. The cutting mechanism 5 is used to cut the light column so that the light column forms different spot cross-sections. The dimming mechanism 6 is installed in the light outlet of the housing 1. The dimming mechanism 6 is matrix-arranged with a plurality of adjustable lens units. The light column passes through the plurality of lens units. The lens units are used to diverge the light passing through them again, so that darker spots are formed at corresponding positions behind the lens units in the spot on the stage. The dimming mechanism 6 includes a surrounding frame 7, a plurality of partition strips 8, a plurality of support rods 9, a controller 10, an upper transparent film 11, and a lower transparent film 12. The surrounding frame 7 is installed at the light outlet of the housing 1 through a bracket. The plurality of partition strips 8 are cross-installed in the surrounding frame 7. The plurality of partition strips 8 divide the interior of the surrounding frame 7 into a plurality of grids arranged in a matrix. The plurality of support rods 9 are respectively installed at the bottoms of the plurality of grids. The plurality of support rods 9 are telescopic. The controller 10 is installed outside the surrounding frame 7. The controller 10 is used to control the telescopic movement of the plurality of support rods 9. The upper transparent film 11 is covered and installed on the upper end face of the surrounding frame 7. The lower transparent film 12 is covered and installed on the lower end face of the surrounding frame 7. The lower transparent film 12 is made of an elastic material. The lower transparent film 12 is connected to the plurality of partition strips 8. The lower end faces of the plurality of support rods 9 are in contact with the upper end face of the lower transparent film 12. The space surrounded by the surrounding frame 7, the upper transparent film 11, and the lower transparent film 12 is filled with a light-transmitting liquid. It also includes a heat dissipation cylinder 26. The heat dissipation cylinder 26 is arranged around the outside of the light source 3. It also includes a sleeve 27 and a push cylinder 28. The sleeve 27 is slidably sleeved on the heat dissipation cylinder 26. The lens group 4 is installed on the sleeve 27. The fixed end of the push cylinder 28 is connected to the heat dissipation cylinder 26. The piston rod of the push cylinder 28 is connected to the sleeve 27. The heat dissipation mechanism 2 includes a heat dissipation frame 29, a fan 30, and a dust-proof net 31. The heat dissipation frame 29 is installed at the bottom of the light source 3. The fan 30 and the dust-proof net 31 are installed on the heat dissipation frame 29.

[0032] The bottom of the housing 1 is provided with a roller assembly for movement and a suction cup assembly for positioning. The housing 1 can be easily moved to a designated position through the roller assembly, and after reaching the designated position, the housing 1 is fixed on the stage through the suction cup assembly; during operation, the fan 30 rotates to generate wind force, and the wind force cools the light source 3. The dust-proof net 31 intercepts dust and impurities. The light source 3 is turned on to emit divergent light. By providing the heat dissipation cylinder 26, the light of the light source 3 is reduced from scattering outward. The piston rod of the push cylinder 28 extends or contracts to drive the sleeve 27 and the lens group 4 to lift, adjusting the distance between the lens group 4 and the light source 3 to achieve different focusing effects of the light column. The cutting mechanism 5 acts to cut the light column, changing the cross-section of the light column, so that the shape of the light spot of the light column on the stage changes; multiple specified lens units in the light regulating mechanism 6 act, causing the lens units to be converted from plane mirrors to convex lenses or concave lenses, so that the light passing through the multiple specified lens units diverges again, so that the light intensity of the part behind the multiple specified lens units is weaker than other parts, so that different bright and dark parts are formed in the cross-section of the light column. For example, when multiple lens units located in the center of the light regulating mechanism 6 act, the middle part of the light column becomes darker, thus forming a light column with an annular cross-section. Similarly, more complex light spot shapes or even patterns can be achieved; compared with the prior art, by controlling the action of the specified lens units in the light regulating mechanism 6 in real time, the pattern projected by the light column can be edited in real time, and the number of switched patterns is not limited by the capacity of the pattern disk, with better flexibility and more timely and accurate cutting and positioning of the light spot.

[0033] Specifically, the support rod 9 can be cross-shaped, water-shaped, rice-shaped, etc. The grids divided by the multiple partition bars 8 and the support rod 9 therein constitute the lens unit. The controller 10 is provided with a processor and a control circuit. When the controller 10 controls the multiple support rods 9 to be in a contracted state, both the lower permeable membrane 12 and the upper permeable membrane 11 are in a horizontal state. At this time, when the optical fiber passes through the lower permeable membrane 12, the light-transmitting liquid and the upper permeable membrane 11, it will not diverge again. At this time, the light column is a solid pattern without bright and dark parts; the controller 10 controls the specified support rod 9 to extend. Since the edge of the support rod 9 is fixedly connected to the grid, the middle part of the specified support rod 9 bulges downward, causing the support rod 9 to bulge the lower permeable membrane 12 downward to form a spherical surface. The light-transmitting liquid fills the spherical surface formed by the lower permeable membrane 12, thus forming a convex lens structure here. When the parallel light rays in the light column pass through this convex lens structure, they are first focused, and then diverge after passing through the focus, so that a darker spot is formed behind this convex lens structure. When multiple darker spots are arranged and combined in an orderly manner, the desired pattern is formed, with good practicability.

[0034] Further, the support rod 9 is made of shape memory metal or piezoelectric ceramic material; when the support rod 9 is made of shape memory metal material, multiple heater switches are set in the controller 10, and the heater switches control the heaters in the grids divided by the multiple partitions 8 to heat the support rod 9, so that the temperature of the specified support rod 9 changes and then expands and contracts; when the support rod 9 is made of piezoelectric ceramic material, multiple high-voltage circuit switches are set in the controller 10, and the high-voltage circuit switches control the circuit to make the specified support rod 9 energized or de-energized. When the specified support rod 9 is energized, it expands and elongates; the control of the support rod 9 is realized to form an adjustable lens unit.

[0035] Embodiment 2, as Figure 10 and Figure 13 shown, on the basis of Embodiment 1, it further includes an expansion pot 13 and an expansion tube 14. The expansion pot 13 is installed on the outside of the frame 7. A storage chamber is arranged inside the expansion pot 13. The bottom of the expansion pot 13 is installed with an expansion tube 14 communicated with the storage chamber, and the other end of the expansion tube 14 extends into the frame 7; it further includes a heat dissipation water tank 15, a first circulation pipe 16 and a second circulation pipe 17. The heat dissipation water tank 15 is installed at the bottom of the heat dissipation mechanism 2. The input end of the first circulation pipe 16 is communicated with the storage chamber of the expansion pot 13, the output end of the first circulation pipe 16 is communicated with the inside of the heat dissipation water tank 15, the output end of the second circulation pipe 17 is communicated with the storage chamber of the expansion pot 13, and the input end of the second circulation pipe 17 is communicated with the inside of the heat dissipation water tank 15.

[0036] The expansion pot 13 stores a light-transmitting liquid, and the liquid level of the expansion pot 13 is higher than the upper permeable membrane 11, so that the space formed by the frame 7, the upper permeable membrane 11 and the lower permeable membrane 12 is filled with the light-transmitting liquid to avoid the influence of air bubbles on the light column effect; at the same time, when the temperature changes and the light-transmitting liquid expands or contracts, the light-transmitting liquid in the expansion pot 13 will adaptively rise and fall, avoiding excessive shape changes of the upper permeable membrane 11 and the lower permeable membrane 12 and improving the stability of light cutting. The heat dissipation water tank 15 is located at the refrigerating end of the heat dissipation mechanism 2 to cool the light-transmitting liquid in the heat dissipation water tank 15. A circulation pump is arranged on the first circulation pipe 16 or the second circulation pipe 17, and the circulation pump makes the light-transmitting liquid circulate between the heat dissipation water tank 15 and the expansion pot 13 through the first circulation pipe 16 and the second circulation pipe 17, so that the light-transmitting liquid maintains a lower temperature and improves the reliability.

[0037] Embodiment 3, as Figure 1 、 Figure 4 、 Figure 7 、 Figure 8 and Figure 9As shown in the figure, on the basis of Embodiment 1, the cutting mechanism 5 includes two semi-circular light-shielding plates 18, two first motors 19, two turning shafts 20 and two mounting brackets 21. The two semi-circular light-shielding plates 18 are semi-circular. The two semi-circular light-shielding plates 18 are oppositely arranged above the lens group 4. The two first motors 19 are mounted in the chamber of the housing 1 through brackets. The two turning shafts 20 are respectively rotatably mounted on the brackets. The output shafts of the two first motors 19 are respectively drivingly connected to the two turning shafts 20. The two mounting brackets 21 are respectively mounted on the two turning shafts 20. The two semi-circular light-shielding plates 18 are respectively mounted on the two mounting brackets 21. It further includes two arc-shaped tracks 22, four track wheels 23, two driving wheels 24 and two second motors 25. Arc-shaped tracks 22 are mounted on the outer edges of the two semi-circular light-shielding plates 18. Two track wheels 23 and one driving wheel 24 are respectively rotatably mounted on the two mounting brackets 21. The driving wheel 24 is located between the two track wheels 23. The two track wheels 23 are in rolling connection with the outer side wall of the arc-shaped track 22. The driving wheel 24 is in rolling connection with the inner side wall of the arc-shaped track 22. The two second motors 25 are respectively mounted on the two mounting brackets 21. The output shafts of the two second motors 25 are respectively drivingly connected to the two driving wheels 24.

[0038] The two semi-circular light-shielding plates 18 are used to block the cutting light beam. The two first motors 19 respectively drive the two turning shafts 20 to rotate. The two turning shafts 20 respectively drive the two semi-circular light-shielding plates 18 to rotate and open or close through the two mounting brackets 21, so that the light beam passes through the gap between the two opposite semi-circular light-shielding plates 18. The two semi-circular light-shielding plates 18 cut both sides of the light beam, so that the light beam forms different strip-shaped cross-sections. The heights of the two semi-circular light-shielding plates 18 are different to avoid bumping. The four track wheels 23 and the two driving wheels 24 respectively roll and support the two arc-shaped tracks 22. The two second motors 25 respectively drive the two driving wheels 24 to rotate. The two driving wheels 24 respectively drive the two arc-shaped tracks 22 to rotate around the central axis of the lens group 4, so that the two semi-circular light-shielding plates 18 asymmetrically cut the side of the light beam to form a light beam with a fan-shaped cross-section, and cooperate with the pitching angle of the two semi-circular light-shielding plates 18 to achieve a more complex light beam cutting effect.

[0039] As Figures 1 to 13As shown in the figure, a stage lighting cutting system that is convenient for positioning according to the present invention, during its operation, first, the housing 1 is conveniently moved to a designated position through the roller assembly, and after reaching the designated position, the housing 1 is fixed on the stage through the suction cup assembly; then during operation, the heat dissipation mechanism 2 operates to ventilate and cool the light source 3, the light source 3 is turned on to emit divergent light, the lens group 4 converges the light into a light column and emits it towards the light outlet of the housing 1, the push cylinder 28 acts to adjust the focusing effect of the lens group 4 to achieve different light column effects; then two motors 19 respectively drive two turning shafts 20 to rotate, and the two turning shafts 20 respectively drive two semi-circular light shielding plates 18 to rotate and open or close through two mounting brackets 21, so that the light column passes through the gap between the two opposite semi-circular light shielding plates 18, and the two semi-circular light shielding plates 18 cut the two sides of the light column, two motors 25 respectively drive two driving wheels 24 to rotate, and the two driving wheels 24 respectively drive two arc-shaped tracks 22 to rotate around the central axis of the lens group 4, so that the two semi-circular light shielding plates 18 asymmetrically cut the side surface of the light column, changing the cross-section of the light column, and changing the shape of the light spot of the light column on the stage; finally, the controller 10 controls the designated support rod 9 to extend. Since the edge of the support rod 9 is fixedly connected to the grid, the middle of the designated support rod 9 bulges downward, causing the support rod 9 to bulge the lower permeable membrane 12 downward to form a spherical surface, and the light-transmitting liquid fills the spherical surface formed by the lower permeable membrane 12, thereby forming a convex lens structure here. When the parallel light rays in the light column pass through this convex lens structure, they are first focused, diverge again after passing through the focus, so that a darker spot is formed behind this convex lens structure, and multiple darker spots are arranged in an orderly manner and combined to form a pattern.

[0040] The main functions achieved by the present invention are:

[0041] 1. By controlling the actions of the designated lens units in the dimming mechanism 6 in real time, the pattern projected by the light column can be edited in real time, with better flexibility and more timely and accurate cutting and positioning of the light spot;

[0042] 2. The number of switched patterns is not limited by the capacity of the pattern disk;

[0043] 3. The semi-circular light shielding plates 18 that can be flipped to adjust the tilt angle and rotate along the arc-shaped track are used to cut the light column to form light columns with different cross-sections;

[0044] 4. The focal length can be adjusted to achieve different light column diameters.

[0045] A stage lighting cutting system facilitating positioning according to the present invention has an installation method, a connection method or a setting method that are all common mechanical methods, and any implementation that can achieve its beneficial effects is acceptable; the housing 1, the heat dissipation mechanism 2, the light source 3, the lens group 4, the cutting mechanism 5, the spacer 8, the support rod 9, the controller 10, the upper permeable film 11, the lower permeable film 12, the expansion kettle 13, the heat dissipation water tank 15, the first circulation pipe 16, the second circulation pipe 17, the expansion pipe 14, the semi-circular light-shielding plate 18, the first motor 19, the turning shaft 20, the arc-shaped track 22, the track wheel 23, the driving wheel 24, the second motor 25, the heat dissipation cylinder 26, the sleeve 27, the push cylinder 28, the heat dissipation frame 29, and the fan 30, and the dust-proof net 31 of the stage lighting cutting system facilitating positioning according to the present invention are purchased on the market. Those skilled in the art only need to install and operate according to the attached operation manual, and there is no need for those skilled in the art to perform creative labor.

[0046] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A stage lighting cutting system convenient for positioning, comprising a housing (1), a heat dissipation mechanism (2), a light source (3) and a lens group (4). A chamber is arranged inside the housing (1). An light outlet communicating with the chamber is arranged at the top of the housing (1), and a ventilation opening is arranged at the bottom of the housing (1). The heat dissipation mechanism (2) is installed at the bottom of the chamber of the housing (1), the light source (3) is installed on the heat dissipation mechanism (2), the lens group (4) is installed above the light source (3), and the lens group (4) focuses the divergent optical fibers emitted by the light source (3) into a light column; characterized in that, It further includes a cutting mechanism (5) and a light-dimming mechanism (6). The cutting mechanism (5) is installed in the chamber of the housing (1). The cutting mechanism (5) is located above the lens group (4). The cutting mechanism (5) is used to cut the light column so that the light column forms different light spot cross-sections. The light-dimming mechanism (6) is installed in the light-emitting port of the housing (1). The light-dimming mechanism (6) is matrix-arranged with a plurality of adjustable lens units. The light column passes through the plurality of lens units. The lens units are used to diverge the light passing through them again, so that darker spots are formed at corresponding positions behind the lens units in the light spot on the stage.

2. The stage lighting cutting system for easy positioning according to claim 1, wherein, The light-dimming mechanism (6) includes a surrounding frame (7), a plurality of partition bars (8), a plurality of support rods (9), a controller (10), an upper transparent film (11) and a lower transparent film (12). The surrounding frame (7) is installed at the light-emitting port of the housing (1) through a bracket. The plurality of partition bars (8) are cross-installed in the surrounding frame (7). The plurality of partition bars (8) divide the interior of the surrounding frame (7) into a plurality of grids arranged in a matrix. The plurality of support rods (9) are respectively installed at the bottoms of the plurality of grids. The plurality of support rods (9) are telescopic. The controller (10) is installed outside the surrounding frame (7). The controller (10) is used to control the telescopic movement of the plurality of support rods (9). The upper transparent film (11) is covered and installed on the upper end face of the surrounding frame (7). The lower transparent film (12) is covered and installed on the lower end face of the surrounding frame (7). The lower transparent film (12) is made of an elastic material. The lower transparent film (12) is connected to the plurality of partition bars (8). The lower end faces of the plurality of support rods (9) are in contact with the upper end face of the lower transparent film (12). The space enclosed by the surrounding frame (7), the upper transparent film (11) and the lower transparent film (12) is filled with a light-transmitting liquid.

3. A stage lighting cutting system that is easy to position as described in claim 2, characterized in that, The support rod (9) is made of a shape memory metal material or a piezoelectric ceramic material.

4. A stage lighting cutting system that is convenient for positioning according to claim 2, wherein, It further includes an expansion pot (13) and an expansion tube (14). The expansion pot (13) is installed outside the surrounding frame (7). A storage chamber is provided inside the expansion pot (13). The bottom of the expansion pot (13) is installed with an expansion tube (14) communicated with the storage chamber. The other end of the expansion tube (14) extends into the surrounding frame (7).

5. The stage lighting cutting system for easy positioning according to claim 4, characterized in that, It further includes a heat dissipation water tank (15), a first circulation pipe (16) and a second circulation pipe (17). The heat dissipation water tank (15) is installed at the bottom of the heat dissipation mechanism (2). The input end of the first circulation pipe (16) is communicated with the storage chamber of the expansion pot (13). The output end of the first circulation pipe (16) is communicated with the inside of the heat dissipation water tank (15). The output end of the second circulation pipe (17) is communicated with the storage chamber of the expansion pot (13). The input end of the second circulation pipe (17) is communicated with the inside of the heat dissipation water tank (15).

6. The stage lighting cutting system for easy positioning according to claim 1, characterized in that The cutting mechanism (5) includes two semi-circular light-shielding plates (18), two first motors (19), two turning shafts (20) and two mounting brackets (21). The two semi-circular light-shielding plates (18) are semi-circular. The two semi-circular light-shielding plates (18) are arranged oppositely above the lens group (4). The two first motors (19) are mounted in the chamber of the housing (1) through brackets. The two turning shafts (20) are respectively rotatably mounted on the brackets. The output shafts of the two first motors (19) are respectively in transmission connection with the two turning shafts (20). The two mounting brackets (21) are respectively mounted on the two turning shafts (20). The two semi-circular light-shielding plates (18) are respectively mounted on the two mounting brackets (21).

7. The stage lighting cutting system facilitating positioning according to claim 6, characterized in that, It further includes two arc-shaped tracks (22), four track wheels (23), two driving wheels (24) and two second motors (25). Arc-shaped tracks (22) are mounted on the outer edges of the two semi-circular light-shielding plates (18). Two track wheels (23) and one driving wheel (24) are respectively rotatably mounted on the two mounting brackets (21). The driving wheel (24) is located between the two track wheels (23). The two track wheels (23) are in rolling connection with the outer side wall of the arc-shaped track (22). The driving wheel (24) is in rolling connection with the inner side wall of the arc-shaped track (22). The two second motors (25) are respectively mounted on the two mounting brackets (21). The output shafts of the two second motors (25) are respectively in transmission connection with the two driving wheels (24).

8. The stage lighting cutting system for easy positioning according to claim 1, wherein It further includes a heat dissipation cylinder (26). The heat dissipation cylinder (26) is arranged annularly outside the light source (3).

9. A stage lighting cutting system that is convenient for positioning as described in claim 8, characterized in that, It further includes a sleeve (27) and a push cylinder (28). The sleeve (27) is slidably sleeved on the heat dissipation cylinder (26). The lens group (4) is mounted on the sleeve (27). The fixed end of the push cylinder (28) is connected to the heat dissipation cylinder (26). The piston rod of the push cylinder (28) is connected to the sleeve (27).

10. A stage lighting cutting system that is convenient for positioning according to claim 1, characterized in that, The heat dissipation mechanism (2) includes a heat dissipation frame (29), a fan (30) and a dust-proof net (31). The heat dissipation frame (29) is mounted at the bottom of the light source (3). The fan (30) and the dust-proof net (31) are mounted on the heat dissipation frame (29).

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