A shock absorbing driving device and a stage light having the same

Abstract

The utility model discloses a shock-absorbing driving device and a stage light having the same, wherein a shock-absorbing driving device includes a driving module for providing driving force, a first mounting plate for installation, and a shock-absorbing module for movably connecting the driving module to the first mounting plate, the shock-absorbing module includes a second mounting plate and a plurality of connecting members, the driving module is rigidly connected to the second mounting plate through the connecting members, the first mounting plate and the second mounting plate are both provided with through holes for the driving rod of the driving module to pass through, and the first mounting plate and the second mounting plate are flexibly connected. When the driving module is in operation, the shock-absorbing module can allow the driving module to be slightly displaced in multiple directions, and will not transmit the vibration to other components through the first mounting plate, thereby avoiding the generation of abnormal noise. At the same time, compared with the method of rigidly connecting the driving module to other components of the lamp, this solution can effectively reduce the jamming caused by the shaking of the driving rod.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lamps, and more specifically to a shock-absorbing driving device and a stage lamp having the same. Background Art

[0002] Stage lights on the market are usually equipped with at least one set of lenses to change the divergence angle of their light beams to achieve a specific light spot effect. Driven by a motor, the lens moves back and forth along the main optical axis of the light beam. When the lens is a focusing lens, the clarity of the light spot can be adjusted; when the lens is a magnifying lens, the size of the light spot can be adjusted, etc.

[0003] There are two main ways to drive the lens. One is to use an ordinary stepper motor in conjunction with a synchronous belt, and the other is to use a lead screw motor. This method is mostly used for wash lamps with larger lenses. However, the lead screw motor fixed on the lamp bracket will shake during operation, and the shaking of the motor will be transmitted to the mounting plate connected to it, causing vibration or abnormal noise. At the same time, the lead screw of the lead screw motor may slightly offset due to its own vibration. Coupled with various other reasons, such as inaccurate processing accuracy and installation errors, the movement of the lens will be stuck or move radially, affecting the spot effect. In addition, during long-term operation, the lead screw will wear out, which will eventually lead to inaccurate control of lens movement and poor reliability. Utility Model Content

[0004] In order to overcome at least one defect of the prior art, the utility model provides a shock-absorbing driving device and a stage light having the same, wherein a shock-absorbing module is used to perform shockproof treatment on a driving module, thereby effectively reducing abnormal noise.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a shock-absorbing drive device and a stage light having the same, wherein a shock-absorbing drive device includes a drive module providing driving force, a first mounting plate for installation, and a shock-absorbing module for movably connecting the drive module to the first mounting plate, the shock-absorbing module includes a second mounting plate and a plurality of connecting members, the drive module is rigidly connected to the second mounting plate through the connecting members, the first mounting plate and the second mounting plate are both provided with through holes for the drive rod of the drive module to pass through, and the first mounting plate and the second mounting plate are flexibly connected.

[0006] The driving module and the second mounting plate are rigidly connected so that the two can be more firmly connected and not easy to fall off. Since the driving module will vibrate during operation, the first mounting plate and the second mounting plate are flexibly connected, that is, the driving module is installed on the lamp in a flexible manner. When the driving module is in operation, the shock absorbing module can allow the driving module to be slightly displaced in multiple directions, and will not transmit the vibration to other components through the first mounting plate, thereby avoiding the generation of abnormal noise. At the same time, compared with the method of rigidly connecting the driving module with other components of the lamp, this solution can effectively reduce the jamming of the driving rod caused by shaking.

[0007] Furthermore, the first mounting plate and the second mounting plate are connected by a shock-absorbing rubber. The shock-absorbing rubber has good elasticity and can effectively reduce the impact of the shaking of the driving module during operation on other components; specifically, when the driving module shakes radially during operation, the shock-absorbing rubber can offset it by compression or rebound, and when the driving module shakes along the plane of the second mounting plate, the elastic force of the shock-absorbing rubber can effectively prevent its shaking from being transmitted to the first mounting plate and then affecting other devices.

[0008] Furthermore, the shock-absorbing adhesive is connected to the first mounting plate and / or the second mounting plate by adhesive tape, which is convenient for installation and more conducive to establishing a flexible connection between the first mounting plate and the second mounting plate.

[0009] Furthermore, the material of the shock-absorbing rubber is nitrile rubber, which has good heat resistance and adhesion, good tensile strength, and is easy to process.

[0010] Furthermore, at least one side of the shock-absorbing rubber is provided with a clamping block, and the first mounting plate and / or the second mounting plate are provided with a mounting hole for clamping the clamping block. The clamping block cooperates with the mounting hole to make the connection between the shock-absorbing rubber and the first mounting plate and / or the second mounting plate more firmly.

[0011] Furthermore, the connecting member is a mounting screw, and the first mounting plate is provided with an avoidance hole corresponding to the mounting screw, the aperture of the avoidance hole is larger than the diameter of the screw, and the screw connects the second mounting plate and the driving module after passing through the avoidance hole. The mounting screw can be tightened from the direction of the first mounting plate, which is convenient for operation; at the same time, the aperture of the avoidance hole is larger than the diameter of the screw to avoid establishing a connection relationship between the driving module and the first mounting plate, thereby preventing the driving module from transmitting vibration to the first mounting plate during operation.

[0012] Furthermore, the driving module includes a screw motor, the driving rod is a transmission rod of the motor, and the motor housing is fixedly connected to the second mounting plate through the connecting piece. The screw motor is prone to radial vibration and axial vibration during operation, and the screw motor is installed on the lamp using the damping module to effectively reduce vibration.

[0013] Furthermore, the first mounting plate has at least one mounting flange protruding from the second mounting plate. By using the mounting flange, screws can be tightened upward from the bottom of the first mounting plate, so as to facilitate the installation of the first mounting plate and other devices.

[0014] Furthermore, the driving module includes a guide rod and a slider connected in a sliding manner, the driving rod is the guide rod, and the slider is fixedly connected to the second mounting plate via the connecting member. The damping module is used to prevent the guide rod and the slider from getting stuck during relative sliding.

[0015] The utility model also provides a stage lamp, which has any of the above-mentioned damping driving devices, and also includes a light source for generating light and a lens module arranged along the light emission direction, wherein the lens module is connected to the driving rod, and driven by the driving module, the lens module performs a reciprocating motion along the light emission direction. The driving module is mounted on the lamp using the damping module, so that the movement of the lens module is more stable, and obvious shaking is avoided during operation, thereby ensuring that the stage lamp projects an ideal optical effect.

[0016] Furthermore, it also includes a heat sink having a substrate, the substrate is close to the light source, and the first mounting plate is fixedly connected to the other side of the substrate away from the light source, so as to reasonably utilize the space inside the lamp body and make the structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the explosion structure of the first mounting plate and the shock absorbing module of the utility model.

[0018] Figure 2 It is a front view of the first mounting plate and the shock absorbing module after installation and a schematic diagram of the structure cut along the A-A' direction.

[0019] Figure 3 Schematic diagram of the structure of the second mounting plate.

[0020] Figure 4 Schematic diagram of the structure of the first mounting plate.

[0021] Figure 5 It is a structural diagram of installing the driving module to the stage light by using the first mounting plate and the shock absorbing module.

[0022] Figure 6 yes Figure 5 A partial enlarged schematic diagram of part B.

[0023] Figure 7 It is a structural schematic diagram of simultaneously connecting the lead screw motor and the first mounting plate by using the damping module.

[0024] In the figure:

[0025] 100, drive module; 110, lead screw motor; 111, motor housing; 112, transmission rod; 120, guide rod; 130, limiter; 200, first mounting plate; 210, through hole; 220, mounting hole; 230, avoidance hole; 240, mounting flange; 300, shock absorbing module; 310, second mounting plate; 320, connector; 330, shock absorbing glue; 331, snap-in block; 400, light source; 500, lens module; 600, radiator; 610, substrate; 620, cooling fins. DETAILED DESCRIPTION

[0026] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0027] like Figure 1 and Figure 7 As shown, a shock-absorbing drive device and a stage light having the same, wherein a shock-absorbing drive device includes a drive module 100 for providing driving force, a first mounting plate 200 for installation, and a shock-absorbing module 300 for movably connecting the drive module 100 to the first mounting plate 200, the shock-absorbing module 300 includes a second mounting plate 310 and a plurality of connecting members 320, the drive module 100 is rigidly connected to the second mounting plate 310 through the connecting members 320, the first mounting plate 200 and the second mounting plate 310 are both provided with a through hole 210 for the drive rod of the drive module 100 to pass through, and the first mounting plate 200 and the second mounting plate 310 are flexibly connected.

[0028] The driving module 100 and the second mounting plate 310 are rigidly connected so that the two can be more firmly connected and not easy to fall off. Since the driving module 100 will vibrate during operation, the first mounting plate 200 and the second mounting plate 310 are flexibly connected, that is, the driving module 100 is installed on the lamp in a flexible connection. When the driving module 100 is in operation, the shock absorbing module 300 can allow the driving module 100 to be slightly displaced in multiple directions, and will not transmit the vibration to other components through the first mounting plate 200, thereby avoiding the generation of abnormal noise. At the same time, compared with the rigid connection between the driving module 100 and other components of the lamp, this solution can effectively reduce the jamming of the driving rod due to shaking. In addition, the shock absorbing module 300 and the first mounting plate 200 are separately provided, so that the driving module 100 can be installed in a suitable position according to the actual design, and has strong versatility.

[0029] Preferably, there are at least three connecting members 320 for a more stable connection.

[0030] Preferably, the first mounting plate 200 and the second mounting plate 310 are both made of metal.

[0031] like Figures 1 to 4 As shown, in a preferred embodiment of the utility model, the first mounting plate 200 and the second mounting plate 310 are connected by a shock-absorbing rubber 330. The shock-absorbing rubber 330 has good elasticity, which can effectively reduce the influence of the shaking of the driving module 100 during operation on other components; specifically, when the driving module 100 shakes radially during operation, the shock-absorbing rubber 330 can offset it by compression or rebound, and when the driving module 100 shakes along the plane of the second mounting plate 310, the elastic force of the shock-absorbing rubber 330 can effectively prevent its shaking from being transmitted to the first mounting plate 200 and then affecting other devices.

[0032] Preferably, the shock-absorbing glue 330 covers the entire second mounting plate 310 , which is more effective in preventing shock.

[0033] Preferably, the shock-absorbing adhesive 330 is provided with a through hole for the connecting member 320 to pass through.

[0034] Optionally, the shock-absorbing glue 330 may be made of other materials with good elasticity, such as silicone, rubber, etc.

[0035] In a preferred embodiment of the present invention, the shock-absorbing adhesive 330 is connected to the first mounting plate 200 and / or the second mounting plate 310 by adhesive tape, which is convenient for installation and more conducive to establishing a flexible connection between the first mounting plate 200 and the second mounting plate 310.

[0036] Preferably, the shock-absorbing adhesive 330 is connected to the first mounting plate 200 and the second mounting plate 310 in the form of adhesive stickers.

[0037] In a preferred embodiment of the present invention, the material of the shock-absorbing rubber 330 is nitrile rubber, which has good heat resistance and adhesion, good tensile strength, and is easy to process.

[0038] Preferably, the first mounting plate 200, the second mounting plate 310 and the shock-absorbing adhesive 330 are integrally formed by heating.

[0039] In a preferred embodiment of the utility model, at least one side of the shock-absorbing rubber 330 is provided with a clamping block 331, and the first mounting plate 200 and / or the second mounting plate 310 is provided with a mounting hole 220 for clamping the clamping block 331. The coupling of the clamping block 331 and the mounting hole 220 makes the connection between the shock-absorbing rubber 330 and the first mounting plate 200 and / or the second mounting plate 310 more secure. Preferably, two clamping blocks 331 are provided on both sides of the shock-absorbing rubber 330, and the first mounting plate 200 and the second mounting plate 310 are correspondingly provided with the mounting holes 220.

[0040] In a preferred embodiment of the utility model, the connecting member 320 is a mounting screw, and the first mounting plate 200 is provided with an avoidance hole 230 corresponding to the mounting screw, and the aperture of the avoidance hole 230 is larger than the diameter of the screw, and the screw connects the second mounting plate 310 and the driving module 100 after passing through the avoidance hole 230. The mounting screw can be tightened from the direction of the first mounting plate 200, which is convenient for operation; at the same time, the aperture of the avoidance hole 230 is set larger than the diameter of the screw to avoid establishing a connection relationship between the driving module 100 and the first mounting plate 200, thereby preventing the driving module 100 from transmitting vibration to the first mounting plate 200 during operation.

[0041] Preferably, the difference between the diameter of the avoidance hole 230 and the diameter of the end of the mounting screw is in the range of 0.05 mm to 0.2 mm, which can be set according to design requirements.

[0042] like Figure 1 and Figures 5 to 7As shown, in a preferred embodiment of the utility model, the driving module 100 includes a screw motor 110, the driving rod is a transmission rod 112 of the motor, and the motor housing 111 is fixedly connected to the second mounting plate 310 through the connecting member 320. The screw motor 110 is prone to radial vibration and axial vibration during operation, and the screw motor 110 is installed on the lamp using the damping module 300, which can effectively reduce vibration.

[0043] In a preferred embodiment of the present invention, the first mounting plate 200 has at least one mounting flange 240 protruding from the second mounting plate 310. With the mounting flange 240, screws can be tightened upward from the bottom of the first mounting plate 200 to facilitate the installation of the first mounting plate 200 and other devices.

[0044] In an optional embodiment of the utility model, the driving module 100 includes a guide rod 120 and a slider that are slidably connected, the driving rod is the guide rod 120, and the slider is fixedly connected to the second mounting plate 310 through the connecting member 320. The damping module 300 is used to prevent the guide rod 120 and the slider from getting stuck during the relative sliding process.

[0045] Preferably, the slider is connected to other components in the lamp, such as the lens module 500, through the shock absorbing module 300 and the first mounting plate 200, so that the lens module 500 can move back and forth smoothly along the main optical axis of the lamp.

[0046] In another embodiment of the utility model, a stage lamp is provided, which has the damping driving device described in any of the above items, and also includes a light source 400 for generating light and a lens module 500 arranged along the light emission direction, wherein the lens module 500 is connected to the driving rod, and under the drive of the driving module 100, the lens module 500 performs a reciprocating motion along the light emission direction. The driving module 100 is mounted on the lamp using the damping module 300, so that the movement of the lens module 500 is more stable, and the lens module 500 is prevented from vibrating significantly during operation, thereby ensuring that the stage lamp projects an ideal optical effect.

[0047] Preferably, the stage light is a wash light, and the light source 400 is a light board composed of a plurality of LED lamp beads.

[0048] Preferably, the lens module 500 can be a magnifying lens or a focusing lens. The lens module 500 includes a plurality of small lenses corresponding to the LED lamp beads one by one.

[0049] In a preferred embodiment of the utility model, a heat sink 600 having a substrate 610 is further included. The substrate 610 is close to the light source 400, and the first mounting plate 200 is fixedly connected to the other side of the substrate 610 away from the light source 400. The space inside the lamp body is reasonably utilized to make the structure more compact.

[0050] Preferably, the driving module 100 includes at least two screw motors 110 , and one end of a transmission rod 112 of the screw motor 110 is fixedly connected to the lens module 500 .

[0051] Preferably, the shock absorbing module 300 is located between the substrate 610 and the housing of the lead screw motor 110 .

[0052] Preferably, it further comprises a limiter 130 for limiting the displacement of the transmission rod 112 of the screw motor 110. When the transmission rod 112 is restricted from moving by the limiter 130, the lens module 500 reaches the lowest working position.

[0053] Preferably, the driving module 100 further includes a guide rod 120 for limiting the lens module 500 to perform reciprocating motion only along the light emitting direction.

[0054] Preferably, the heat sink 600 further includes a plurality of heat dissipation fins 620 disposed in parallel below the substrate 610 , and the heat dissipation fins 620 are recessed with an accommodation cavity for accommodating the driving module 100 .

[0055] In other embodiments of the present invention, the driving module 100 can also drive other effect modules except the lens module 500 to move back and forth along the light emitting direction.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A damping drive device, characterized in that: The invention comprises a driving module (100) for providing driving force, a first mounting plate (200) for installation, and a shock absorbing module (300) for movably connecting the driving module (100) to the first mounting plate (200), wherein the shock absorbing module (300) comprises a second mounting plate (310) and a plurality of connecting members (320), wherein the driving module (100) is rigidly connected to the second mounting plate (310) via the connecting members (320), and the first mounting plate (200) and the second mounting plate (310) are both provided with a through hole (210) for a driving rod of the driving module (100) to pass through, and the first mounting plate (200) and the second mounting plate (310) are flexibly connected.

2. The damping drive device according to claim 1, characterized in that: The first mounting plate (200) and the second mounting plate (310) are connected via a shock-absorbing adhesive (330).

3. The damping drive device according to claim 2, characterized in that: The shock-absorbing adhesive (330) is connected to the first mounting plate (200) and / or the second mounting plate (310) by means of adhesive stickers.

4. The damping drive device according to claim 2, characterized in that: The material of the shock-absorbing rubber (330) is nitrile rubber.

5. The damping drive device according to claim 2, characterized in that: At least one side of the shock-absorbing rubber (330) is provided with a clamping block (331), and the first mounting plate (200) and / or the second mounting plate (310) are provided with a mounting hole (220) for clamping the clamping block (331).

6. The damping drive device according to claim 1, characterized in that: The connecting member (320) is a mounting screw, and the first mounting plate (200) is provided with an avoidance hole (230) corresponding to the mounting screw, the hole diameter of the avoidance hole (230) is larger than the diameter of the screw, and the screw passes through the avoidance hole (230) to connect the second mounting plate (310) and the driving module (100).

7. The damping drive device according to claim 1, characterized in that: The driving module (100) comprises a screw motor (110), the driving rod is a transmission rod (112) of the motor, and the motor housing (111) is fixedly connected to the second mounting plate (310) via the connecting member (320).

8. The damping drive device according to claim 1, characterized in that: The first mounting plate (200) has at least one mounting flange (240) protruding from the second mounting plate (310).

9. The damping drive device according to claim 1, characterized in that: The driving module (100) comprises a guide rod (120) and a sliding block which are slidably connected, the driving rod is the guide rod (120), and the sliding block is fixedly connected to the second mounting plate (310) via the connecting member (320).

10. A stage light, characterized in that: A damping drive device according to any one of claims 1 to 8, further comprising a light source (400) for generating light and a lens module (500) arranged along the light emitting direction, wherein the lens module (500) is connected to the driving rod, and under the drive of the driving module (100), the lens module (500) performs a reciprocating motion along the light emitting direction.

11. The stage light according to claim 10, characterized in that: It also includes a heat sink (600) having a substrate (610), wherein the substrate (610) is in close contact with the light source (400), and the first mounting plate (200) is fixedly connected to the other side of the substrate (610) away from the light source (400).

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