Zoom rotating mechanism of multi-light-source LED stage lamp and stage lamp

Abstract

The utility model discloses a kind of zooming rotating mechanism and stage lamp of multi-light source LED stage lamp, including lens assembly, light-emitting component and heat dissipation component;The light-emitting component is located between lens assembly and heat dissipation component, and is connected with the heat dissipation component, and the lens assembly is connected with heat dissipation component;The heat dissipation component includes a heat dissipation substrate, one side of the heat dissipation substrate is connected with light-emitting component, and the other side is equipped with radiator;The periphery of the heat dissipation substrate is symmetrically equipped with multiple zooming components, the zooming component includes screw rod and slide bar, the screw rod and slide bar vertically pass through the heat dissipation substrate, one end of the screw rod and slide bar close to lens assembly is equipped with connecting piece, and the tail end of screw rod and slide bar respectively extends to the connecting piece, and is connected with each other by connecting piece, and the connecting piece is also connected with lens assembly.

Description

Technical Field

[0001] This utility model belongs to the field of stage lighting technology, specifically relating to a zoom rotation mechanism and stage lighting fixture for a multi-source LED stage light. Background Technology

[0002] With the widespread adoption of LED stage lights, their advantages such as low power consumption, long lifespan, and adjustable color temperature are continuously driving the green development of stage lighting. As a crucial light source for stage lighting, LEDs are widely used due to their high luminous efficiency, excellent combined rendering effects, energy saving, environmental friendliness, and long lifespan. In recent years, multi-light source combination zoom LED stage lights have emerged. The most distinctive feature of these lights is that their light source module is encapsulated and integrated with multiple multi-color (including Red, Green, Blue, and White) LED beads. Each light source has its own independent light guide system and light emission aperture. Each LED bead in the light source module can be individually controlled in single color, or the entire module can be controlled. Furthermore, through functions such as beam zooming and beam rotation / deflection, a variety of rich and colorful lighting effects can be emitted from the lamp head, making them very popular in the market.

[0003] Existing lighting fixtures generally have a small number of light sources and lenses, and most of the light-emitting panels and lenses are integrally molded structures. The zoom and rotation structures bear relatively little volume or weight. However, for stage lighting fixtures with a large number of light sources and lenses, when the area of ​​the light-emitting surface or lens disk increases, the zoom and rotation structures of the lighting fixture may malfunction due to the increased volume or weight they bear. Furthermore, during zoom and rotation, the increased volume or weight can lead to slow movement and instability. Summary of the Invention

[0004] To address the problems in related technologies, this utility model proposes a zoom and rotation mechanism for a multi-source LED stage light and a stage lighting fixture. It is equipped with multiple zoom components, which avoids potential instability and malfunctions in lighting fixtures with a large number of light sources and lenses when the area of ​​the light-emitting surface of the light source or the lens disk becomes larger due to the increased volume or weight it bears.

[0005] This utility model is implemented as follows:

[0006] A zoom rotation mechanism for a multi-source LED stage light includes a lens assembly, a light-emitting assembly, and a heat-dissipating assembly; the light-emitting assembly is located between the lens assembly and the heat-dissipating assembly and is connected to the heat-dissipating assembly, and the lens assembly is connected to the heat-dissipating assembly.

[0007] The heat dissipation assembly includes a heat dissipation substrate, one side of which is connected to the light-emitting component, and the other side is provided with a heat sink; a plurality of zoom components are symmetrically arranged around the periphery of the heat dissipation substrate, each zoom component including a lead screw and a slide rod, the lead screw and the slide rod passing vertically through the heat dissipation substrate, and a connector provided at one end of the lead screw and the slide rod near the lens assembly, the ends of the lead screw and the slide rod extending to the connector respectively and being connected to each other through the connector, the connector also being connected to the lens assembly;

[0008] The lead screw and slide rod are respectively provided with buffer rubber pads on one side of the connector, and the slide rod is also provided with a slide rod buffer; a slide sleeve is sleeved on the outside of the slide rod, and a lead screw stepper motor is sleeved on the side of the lead screw located on the radiator.

[0009] Preferably, the connector has two through holes; the ends of the lead screw and the slide rod are respectively provided with fixing screws; the lead screw and the slide rod are respectively fixed to the side of their corresponding through holes by fixing screws; the buffer pad includes a lead screw buffer pad and a slide rod buffer pad; the lead screw buffer pad and the slide rod buffer pad are respectively located in their corresponding through holes;

[0010] The slide bar buffer pad is located between its corresponding fixing screw and slide bar buffer component, and the slide bar buffer pad is adjacent to the slide bar buffer component and its corresponding fixing screw respectively; the end of the slide bar located on the heat sink side is provided with a slide bar limiting screw, and the sliding sleeve is located between the slide bar limiting screw and the heat sink base plate.

[0011] Specifically, the slide bar buffer is sleeved on the outside of the slide bar, and the slide bar buffer pad is sleeved on the outside of its corresponding fixing screw. Both the buffer pad and the slide bar buffer can provide a buffering effect when the slide bar moves along the lead screw for zooming.

[0012] Preferably, the end of the lead screw located on the side where the connector is located is provided with a lead screw flange; the lead screw buffer pad is located between its corresponding fixing screw and the lead screw flange, and the lead screw buffer pad is adjacent to the lead screw flange and its corresponding fixing screw respectively;

[0013] A lead screw motor mounting plate is connected to the lead screw stepper motor. The lead screw motor mounting plate is located between the lead screw stepper motor and the heat dissipation base plate and is parallel to the heat dissipation base plate. Multiple buffer and shock-absorbing columns are provided between the lead screw mounting plate and the heat dissipation base plate, and are connected to the heat dissipation base plate through the buffer and shock-absorbing columns.

[0014] Specifically, the fixing screws pass through the slide bar buffer pad and the lead screw buffer pad respectively, and fix them to the ends of the slide bar and the lead screw respectively;

[0015] The lead screw stepper motor is sleeved on the outside of the lead screw. The buffer and shock absorption column can play a role in buffering and shock absorption. When the lead screw stepper motor is working and moves along the lead screw in a zooming motion, it improves the stability of the movement process.

[0016] Preferably, the sliding sleeve is fitted onto the side of the sliding rod where the heat sink is located and passes through the heat sink substrate; the two ends of the sliding sleeve are respectively provided with a sliding bearing and a bearing retaining ring; the length of the sliding sleeve on the side where the heat sink is located is greater than its length on the side where the light-emitting component is located.

[0017] Specifically, the main body of the sliding sleeve is located on one side of the heat sink; the sliding sleeve extends from the side where the heat sink is located toward the heat dissipation substrate and is connected to the heat dissipation substrate. The outer side of the sliding sleeve has a protruding annular structure, which is located on the side where the heat sink is located and is engaged with the heat dissipation substrate through the protruding annular structure.

[0018] The buffering effect can be improved by setting buffer pads, buffer components, and sleeves on the slide rod.

[0019] Preferably, the heat dissipation substrate is further provided with a positioning plate bracket, and the positioning plate bracket is provided with a Hall positioning plate; both the positioning plate bracket and the Hall positioning plate are located on the side where the light-emitting component is located.

[0020] Specifically, the positioning plate bracket and Hall positioning plate are set on the periphery of the heat dissipation base plate; their main function is positioning.

[0021] Preferably, a limiting post is provided between the lead screw and the slide bar, and the length of the limiting post is less than the length of the lead screw and the slide bar on the side where the light-emitting component is located.

[0022] Specifically, the limiting post is mainly used to limit the movement distance of the lead screw and slide bar to prevent the lens assembly from getting too close to the light-emitting assembly and causing a collision; the limiting post is smaller than the length of the lead screw and slide bar, which can prevent the zoom movement distance from being too small.

[0023] Preferably, the lens assembly includes a lens disk and a rotating assembly. The rotating assembly includes a rotating disk fixing plate, a rotating gear plate, a rotating gear, and a rotating assembly base plate connected in sequence. The rotating disk fixing plate is connected to the lens disk. The rotating assembly base plate is connected to a connector. A rotating pulley assembly is provided on the outer side of the rotating assembly base plate. The rotating pulley assembly is engaged with the rotating disk fixing plate.

[0024] Specifically, the outer side of the rotating gear disk is also provided with a rotating positioning magnet, a rotating Hall positioning plate and a rotating motor gear, and a rotating motor is connected to the rotating motor gear; the side of the rotating component base plate facing the heat dissipation base plate is provided with a rotating motor mounting plate corresponding to the rotating motor, and the rotating motor is connected to the rotating motor mounting plate; the side of the rotating motor facing the heat dissipation base plate is also provided with a magnetic coding positioning plate.

[0025] Preferably, the rotating pulley assembly includes a pulley base plate, a pulley central shaft, a rotating pulley, and a pulley pad connected in sequence; the outer side of the rotating pulley has a pulley groove, and the inner side of the rotating pulley has a pulley bearing.

[0026] Specifically, screws are fixed at both ends of the rotating pulley assembly; the lens disk and rotating assembly are rotated as a whole by combining the rotating motor gear transmission with the rotating pulley assembly, thereby improving the stability during rotation.

[0027] Preferably, the light-emitting component is composed of multiple light-emitting plates, the shape of which is adapted to the shape of the heat dissipation substrate, one side of the light-emitting plate is provided with a number of LED beads and a number of light guide rods, and the other side is connected to the heat dissipation substrate.

[0028] Specifically, each light plate contains multiple LED chip packages and their driving modules; the light guide rod is packaged and installed corresponding to the LED chips on the light-emitting plate, serving to focus and guide the light. The rotating gear disk has the same number of light-emitting holes as the lenses or LED light sources.

[0029] A stage lighting fixture that utilizes the zoom rotation mechanism of a multi-source LED stage light as described in any of the above claims.

[0030] Compared with the prior art, the present invention achieves the following beneficial effects:

[0031] This utility model provides a zoom and rotation mechanism for a multi-source LED stage light and a stage lighting fixture, including a lens assembly, a light-emitting assembly, and a heat dissipation assembly. The heat dissipation assembly includes a heat dissipation substrate, and multiple zoom components are symmetrically arranged on the periphery of the heat dissipation substrate. Each zoom component includes a lead screw and a slide rod, and buffer pads are also provided on the lead screw and slide rod. A sliding sleeve and a slide rod buffer are also provided on the slide rod. By symmetrically arranging multiple sets of small-volume zoom components on the periphery of the heat dissipation substrate, when the number of light sources and lenses in the lighting fixture is large, the area of ​​the light-emitting surface of the light source or the lens disk becomes larger, avoiding potential malfunctions in the zoom and rotation structure of the lighting fixture due to the increased volume or weight. The use of buffer pads, sliding sleeves, and slide rod buffers forms a multi-level buffer structure for assistance, allowing the lighting fixture to achieve rapid and smooth rotation of the zoom module within a small space. This improves the speed and stability during zoom and rotation movement and eliminates safety hazards caused by the large size and excessive weight of the lighting fixture. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a stage lighting fixture according to an embodiment of the present utility model;

[0033] Figure 2This is an exploded structural diagram of the zoom rotation mechanism of a multi-source LED stage light according to an embodiment of the present invention.

[0034] Figure 3 This is one of the exploded schematic diagrams of the lens assembly of the zoom rotation mechanism of a multi-source LED stage light according to an embodiment of the present utility model.

[0035] Figure 4 This is the second exploded view of the lens assembly of the zoom rotation mechanism of a multi-source LED stage light in an embodiment of this utility model;

[0036] Figure 5 This is an exploded structural diagram of the rotating pulley assembly of the zoom rotation mechanism of a multi-source LED stage light according to an embodiment of the present invention.

[0037] Figure 6 This is a schematic diagram of the heat dissipation component structure of the zoom rotation mechanism of a multi-source LED stage light according to an embodiment of the present invention.

[0038] Figure 7 This is a schematic diagram of the zoom component structure of a zoom rotation mechanism for a multi-source LED stage light according to an embodiment of the present invention.

[0039] Figure 8 This is a schematic diagram of the lead screw connection structure of the zoom rotation mechanism of a multi-light source LED stage light according to an embodiment of the present utility model.

[0040] Figure 9 This is a schematic diagram of the slide bar connection structure of a zoom rotation mechanism for a multi-light source LED stage light according to an embodiment of the present invention.

[0041] Figure 10 This is a schematic diagram of the exploded structure of the sliding sleeve of a zoom rotation mechanism for a multi-source LED stage light according to an embodiment of this utility model.

[0042] Figure label:

[0043] 1. Lens assembly; 11. Lens disk; 12. Rotating assembly; 121. Rotating disk fixing plate; 122. Rotating gear disk pad; 123. Rotating gear disk; 1231. Rotating positioning magnet; 1232. Rotating Hall positioning plate; 1233. Rotating motor gear; 124. Rotating assembly base plate; 1241. Rotating motor; 1242. Rotating motor mounting plate; 1243. Magnetic encoder positioning plate;

[0044] 2. Rotary pulley assembly; 21. Pulley base plate; 22. Pulley central shaft; 23. Rotary pulley; 231. Pulley groove; 232. Pulley bearing; 24. Pulley pad; 25. Screw;

[0045] 3. Light-emitting components; 31. Light-emitting panel; 32. Light guide rod;

[0046] 4. Heat dissipation components; 41. Heat dissipation base plate; 411. Positioning plate bracket; 412. Hall positioning plate; 42. Heat sink;

[0047] 5. Zoom assembly; 51. Lead screw; 511. Lead screw buffer pad; 512. Lead screw stepper motor; 513. Lead screw flange; 514. Lead screw motor mounting plate; 515. Buffer and shock absorption column; 52. Slide rod; 521. Slide rod buffer pad; 522. Slide rod buffer component; 523. Sliding sleeve; 5231. Sliding bearing; 5232. Bearing retaining ring; 524. Slide rod limit screw; 53. Connecting piece; 54. Fixing screw; 55. Limiting post. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] Example

[0050] like Figures 1 to 10 A zoom rotation mechanism for a multi-source LED stage light includes a lens assembly 1, a light-emitting assembly 3, and a heat dissipation assembly 4; the light-emitting assembly 3 is located between the lens assembly 1 and the heat dissipation assembly 4 and is connected to the heat dissipation assembly 4, and the lens assembly 1 is connected to the heat dissipation assembly 4.

[0051] The heat dissipation assembly 4 includes a heat dissipation substrate 41, one side of which is connected to the light-emitting assembly 3, and the other side is provided with a heat sink 42; a plurality of zoom assemblies 5 are symmetrically arranged around the heat dissipation substrate 41, each zoom assembly 5 including a lead screw 51 and a slide bar 52, the lead screw 51 and the slide bar 52 passing vertically through the heat dissipation substrate 41, and a connector 53 is provided at one end of the lead screw 51 and the slide bar 52 near the lens assembly 1, the ends of the lead screw 51 and the slide bar 52 extending to the connector 53 respectively, and being connected to each other through the connector 53, the connector 53 also being connected to the lens assembly 1;

[0052] The lead screw 51 and slide rod 52 are respectively provided with buffer rubber pads on one side of the connector 53, and the slide rod 52 is also provided with a slide rod buffer 522; a slide sleeve 523 is sleeved on the outside of the slide rod 52, and a lead screw stepper motor 512 is sleeved on one side of the lead screw 51 located on the radiator 42.

[0053] This embodiment includes four zoom components 5, each with a lead screw 51 and a slide bar 52. Each lead screw 51 corresponds to a lead screw stepper motor 512, and there are four sets of corresponding slide sleeves 523. The heat sink 42 consists of several heat sink fins.

[0054] The lens assembly 1 includes a lens disk 11 and a rotating assembly 12. The rotating assembly 12 includes a rotating disk fixing plate 121, a rotating gear plate 122, a rotating gear 123, and a rotating assembly base plate 124 connected in sequence. The rotating disk fixing plate 121 is connected to the lens disk 11. The rotating assembly base plate 124 is connected to the connector 53. A rotating pulley assembly 2 is provided on the outer side of the rotating assembly base plate 124, and the rotating pulley assembly 2 is engaged with the rotating disk fixing plate 121.

[0055] The outer side of the rotating gear disk 123 is also provided with a rotating positioning magnet 1231, a rotating Hall positioning plate 1232, and a rotating motor gear 1233, and a rotating motor 1241 is connected to the rotating motor gear 1233; the side of the rotating component base plate 124 facing the heat dissipation base plate 41 is provided with a rotating motor mounting plate 1242 corresponding to the rotating motor 1241, and the rotating motor 1241 is connected to the rotating motor mounting plate 1242; the side of the rotating motor 1241 facing the heat dissipation base plate 41 is also provided with a magnetic coding positioning plate 1243. The rotating motor mounting plate 1242 is connected to the rotating component base plate 124.

[0056] The rotating pulley assembly 2 includes a pulley base plate 21, a pulley central shaft 22, a rotating pulley 23, and a pulley pad 24 connected in sequence; the outer side of the rotating pulley 23 has a pulley groove 231, and the inner side of the rotating pulley 23 has a pulley bearing 232.

[0057] Screws 25 are fixed at both ends of the rotating pulley assembly 2; the lens disk 11 and the rotating assembly 12 are rotated as a whole by combining the rotation of the rotating motor gear 1233 with the rotating pulley assembly 2, thereby improving the stability during rotation.

[0058] The light-emitting component 3 is composed of multiple light-emitting plates 31. The shape of the multiple light-emitting plates 31 is adapted to the shape of the heat dissipation substrate 41. One side of the light-emitting plate 31 is provided with a number of LED beads and a number of light guide rods 32, and the other side is connected to the heat dissipation substrate 41.

[0059] Each light plate has multiple LED bead packages and their driving modules; the light guide rod 32 is used to package and install the LED beads corresponding to the light-emitting plate 31, serving to focus and guide the light. The rotating gear disk 123 has the same number of light-emitting holes as the lenses or LED light sources.

[0060] In this embodiment, the lens disk 11 is also composed of multiple lenses.

[0061] The connector 53 has two through holes; the ends of the lead screw 51 and the slide rod 52 are respectively provided with fixing screws 54; the lead screw 51 and the slide rod 52 are respectively fixed to the side of their corresponding through holes by fixing screws 54; the buffer pad includes lead screw buffer pad 511 and slide rod buffer pad 521; the lead screw buffer pad 511 and the slide rod buffer pad 521 are respectively located in their corresponding through holes;

[0062] The slide bar buffer pad 521 is located between its corresponding fixing screw 54 and slide bar buffer 522, and the slide bar buffer pad 521 is adjacent to the slide bar buffer 522 and its corresponding fixing screw 54 respectively; the end of the slide bar 52 located on one side of the heat sink 42 is provided with a slide bar limiting screw 524, and the sliding sleeve 523 is located between the slide bar limiting screw 524 and the heat sink base plate 41.

[0063] The slide bar buffer 522 is sleeved on the outside of the slide bar 52, and the slide bar buffer pad 521 is sleeved on the outside of its corresponding fixing screw 54. Both the buffer pad and the slide bar buffer 522 can provide a buffering effect when the slide bar moves along the lead screw 51 for zooming.

[0064] The outer ring of the slide bar buffer pad 521 is provided with a locking mounting groove.

[0065] The end of the lead screw 51 located on the side where the connector 53 is located is provided with a lead screw flange 513; the lead screw buffer pad 511 is located between its corresponding fixing screw 54 and the lead screw flange 513, and the lead screw buffer pad 511 is adjacent to the lead screw flange 513 and its corresponding fixing screw 54 respectively.

[0066] A lead screw motor mounting plate 514 is connected to the lead screw stepper motor 512. The lead screw motor mounting plate 514 is located between the lead screw stepper motor 512 and the heat dissipation base plate 41 and is parallel to the heat dissipation base plate 41. A plurality of buffer and shock-absorbing columns 515 are provided between the lead screw 51 mounting plate and the heat dissipation base plate 41 and are connected to the heat dissipation base plate 41 through the buffer and shock-absorbing columns 515.

[0067] Four sets of lead screw stepper motors 512 are provided, along with a total of 12 buffer and shock-absorbing columns 515.

[0068] The fixing screws 54 pass through the slide rod buffer pad 521 and the lead screw buffer pad 511 respectively, and fix them to the ends of the slide rod 52 and the lead screw 51 respectively;

[0069] The lead screw stepper motor 512 is sleeved on the outside of the lead screw 51. The buffer and shock absorption column 515 can play a role in buffering and shock absorption. When the lead screw stepper motor 512 is working and moving along the lead screw 51 for zooming, it improves the stability of the movement process.

[0070] The sliding sleeve 523 is sleeved on the side of the sliding rod 52 where the heat sink 42 is located, and passes through the heat sink substrate 41; the two ends of the sliding sleeve 523 are respectively provided with a sliding bearing 5231 and a bearing retaining ring 5232; the length of the sliding sleeve 523 on the side where the heat sink 42 is located is greater than its length on the side where the light-emitting component 3 is located.

[0071] The main body of the sliding sleeve 523 is located on one side of the heat sink 42; the sliding sleeve 523 extends from the side where the heat sink 42 is located toward the heat dissipation substrate 41 and is connected to the heat dissipation substrate 41. The outer side of the sliding sleeve 523 has a protruding annular structure, which is located on the side where the heat sink 42 is located and is engaged with the heat dissipation substrate 41 through the protruding annular structure; the sliding sleeve 523 is fixed on the heat dissipation substrate 41.

[0072] The buffering effect is improved by setting a slide rod buffer pad 521, a slide rod buffer component 522, and a slide sleeve 523 on the slide rod 52.

[0073] The heat dissipation substrate 41 is also provided with a positioning plate bracket 411, and a Hall positioning plate 412 is provided on the positioning plate bracket 411; both the positioning plate bracket 411 and the Hall positioning plate 412 are located on the side where the light-emitting component 3 is located.

[0074] The positioning plate bracket 411 and the Hall positioning plate 412 are arranged on the periphery of the heat dissipation base plate 41; they mainly serve a positioning function.

[0075] A limiting post 55 is also provided between the lead screw 51 and the slide bar 52. The length of the limiting post 55 is less than the length of the lead screw 51 and the slide bar 52 on the side where the light-emitting component 3 is located.

[0076] This embodiment has four sets of limiting posts 55. The limiting posts 55 are mainly used to limit the movement distance of the lead screw 51 and the slide bar 52 to prevent the lens assembly 1 from being too close to the light-emitting assembly 3 and causing a collision; the limiting posts 55 are smaller than the length of the lead screw 51 and the slide bar 52, which can avoid the zoom movement distance being too small.

[0077] A stage lighting fixture that utilizes the zoom rotation mechanism of a multi-source LED stage light as described above.

[0078] This invention provides a zoom rotation mechanism and stage lighting fixture for a multi-source LED stage light. The light-emitting component 3 consists of multiple light-emitting plates 31, and the lens component 1 consists of multiple lenses, forming a lighting fixture with a relatively large number of light sources and lenses. In this embodiment, it has 37 LED beads, i.e., light sources. The light-emitting surface of the light source and the lens disk 11 have a large area and weight. By symmetrically arranging four sets of small-volume zoom components 5, the lead screw stepper motor 512 first starts working, driving the lead screw 51 to rotate. The lead screw 51 drives the lens component 1 to move along the slide bar 52, moving closer to or away from the light-emitting component 3 to achieve a zoom effect. A multi-level buffer auxiliary structure is formed by using a lead screw buffer pad 511, a slide rod buffer pad 521, a slide rod buffer component 522, a sliding sleeve 523, and a buffer shock-absorbing column 515, allowing the luminaire to achieve rapid and smooth rotation of the zoom module within a small space. The overall rotation of the luminaire lens disk 11 assembly is achieved by combining the rotary motor gear 1233 transmission with the rotary pulley assembly 2, improving the stability during rotation. The dynamic effects of zoom and beam shift are achieved by driving the light-emitting component 3, the zoom component 5, and the lens assembly 1.

[0079] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A zoom rotation mechanism for a multi-source LED stage light, comprising a lens assembly, a light-emitting assembly, and a heat-dissipating assembly; the light-emitting assembly is located between the lens assembly and the heat-dissipating assembly and is connected to the heat-dissipating assembly, the lens assembly being connected to the heat-dissipating assembly; characterized in that, The heat dissipation assembly includes a heat dissipation substrate, one side of which is connected to the light-emitting component, and the other side is provided with a heat sink; a plurality of zoom components are symmetrically arranged around the periphery of the heat dissipation substrate, each zoom component including a lead screw and a slide rod, the lead screw and the slide rod passing vertically through the heat dissipation substrate, and a connector provided at one end of the lead screw and the slide rod near the lens assembly, the ends of the lead screw and the slide rod extending to the connector respectively and being connected to each other through the connector, the connector also being connected to the lens assembly; The lead screw and slide rod are respectively provided with buffer rubber pads on one side of the connector, and the slide rod is also provided with a slide rod buffer; a slide sleeve is sleeved on the outside of the slide rod, and a lead screw stepper motor is sleeved on the side of the lead screw located on the radiator.

2. The zoom rotation mechanism of a multi-source LED stage light according to claim 1, characterized in that, The connector has two through holes; the ends of the lead screw and the slide rod are respectively provided with fixing screws; the lead screw and the slide rod are respectively fixed to the side of their corresponding through holes by fixing screws; the buffer pad includes a lead screw buffer pad and a slide rod buffer pad; the lead screw buffer pad and the slide rod buffer pad are respectively located in their corresponding through holes; The slide bar buffer pad is located between its corresponding fixing screw and slide bar buffer component, and the slide bar buffer pad is adjacent to the slide bar buffer component and its corresponding fixing screw respectively; the end of the slide bar located on the heat sink side is provided with a slide bar limiting screw, and the sliding sleeve is located between the slide bar limiting screw and the heat sink base plate.

3. The zoom rotation mechanism for a multi-source LED stage light according to claim 2, characterized in that, The end of the lead screw located on the side where the connector is located is provided with a lead screw flange; the lead screw buffer pad is located between its corresponding fixing screw and the lead screw flange, and the lead screw buffer pad is adjacent to the lead screw flange and its corresponding fixing screw respectively; A lead screw motor mounting plate is connected to the lead screw stepper motor. The lead screw motor mounting plate is located between the lead screw stepper motor and the heat dissipation base plate and is parallel to the heat dissipation base plate. Multiple buffer and shock-absorbing columns are provided between the lead screw mounting plate and the heat dissipation base plate, and are connected to the heat dissipation base plate through the buffer and shock-absorbing columns.

4. The zoom rotation mechanism of a multi-source LED stage light according to claim 1, characterized in that, The sliding sleeve is fitted onto the side of the sliding rod where the heat sink is located and passes through the heat sink substrate; the two ends of the sliding sleeve are respectively provided with sliding bearings and bearing retaining rings; the length of the sliding sleeve on the side where the heat sink is located is greater than its length on the side where the light-emitting component is located.

5. The zoom rotation mechanism of a multi-source LED stage light according to claim 1, characterized in that, The heat dissipation substrate is also provided with a positioning plate bracket, and a Hall positioning plate is provided on the positioning plate bracket; both the positioning plate bracket and the Hall positioning plate are located on the side where the light-emitting component is located.

6. The zoom rotation mechanism of a multi-source LED stage light according to claim 1, characterized in that, A limiting post is also provided between the lead screw and the slide bar, and the length of the limiting post is less than the length of the lead screw and the slide bar on the side where the light-emitting component is located.

7. The zoom rotation mechanism of a multi-source LED stage light according to claim 1, characterized in that, The lens assembly includes a lens disk and a rotating assembly. The rotating assembly includes a rotating disk fixing plate, a rotating gear plate, a rotating gear, and a rotating assembly base plate connected in sequence. The rotating disk fixing plate is connected to the lens disk. The rotating assembly base plate is connected to a connector. A rotating pulley assembly is provided on the outer side of the rotating assembly base plate. The rotating pulley assembly is engaged with the rotating disk fixing plate.

8. The zoom rotation mechanism of a multi-source LED stage light according to claim 7, characterized in that, The rotating pulley assembly includes a pulley base plate, a pulley central shaft, a rotating pulley, and a pulley pad connected in sequence; the outer side of the rotating pulley has a pulley groove, and the inner side of the rotating pulley has a pulley bearing.

9. The zoom rotation mechanism of a multi-source LED stage light according to claim 1, characterized in that, The light-emitting component consists of multiple light-emitting plates, the shape of which is adapted to the shape of the heat dissipation substrate. One side of each light-emitting plate is provided with several LED beads and several light guide rods, and the other side is connected to the heat dissipation substrate.

10. A stage lighting fixture, characterized in that, The zoom rotation mechanism of a multi-source LED stage light as described in any one of claims 1 to 9 is applied.

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