Self-locking type cutting device for stage lighting

Abstract

The utility model relates to a stage lighting self-locking type cutting device which is characterized in that the stage lighting self-locking type cutting device comprises a bottom plate, an annular movable plate and an annular fixed plate which are sequentially arranged from bottom to top, the bottom plate is fixed to a stage lamp, and the bottom plate is fixedly connected with the annular fixed plate after penetrating through the annular movable plate through a plurality of connecting columns; a clearance space is formed between the bottom plate and the annular fixed plate, a first light-transmitting hole is formed in the bottom plate, a plurality of cutting blades distributed around the periphery of the first light-transmitting hole are movably arranged between the bottom plate and the annular movable plate, and the cutting blades can transversely move in the clearance space to shield or open the first light-transmitting hole; the cutting device further comprises a first pressing mechanism for driving the annular movable plate to longitudinally move in the clearance space so as to press or loosen the cutting blade, the first pressing mechanism has a pressing and locking function, the position of the adjusted cutting blade can be locked, position deviation of the cutting blade is prevented, the cutting shape is effectively kept not to deform, and the cutting efficiency is improved. And a high-quality stage effect is kept.

Description

Technical Field

[0001] The invention relates to the technical field of stage lights, and in particular to a self-locking cutting device for stage lights. Background Art

[0002] With the continuous development of stage lighting technology, the requirements for diversified stage effects are getting higher and higher. In order to meet the needs of different application occasions, a cutting device located between the light source and the light output lens is usually used to cut the light beam, and the light spot projected by the stage lamp is cut into various shapes. At present, the manually adjusted cutting blade has poor stability. After being adjusted to the predetermined position, the cutting blade is prone to move, so it cannot always maintain the preset shape, which in turn affects the stage effect. Summary of the invention

[0003] The present invention is to solve one of the above technical problems and provide a self-locking cutting device for stage lighting, which can lock the adjusted cutting blade to prevent the cutting blade from shifting and maintain a preset cutting shape.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A self-locking cutting device for stage lighting comprises a bottom plate, an annular movable plate and an annular fixed plate which are arranged in sequence from bottom to top, the bottom plate being fixed on the stage light, the bottom plate being fixedly connected to the annular fixed plate after passing through the annular movable plate via a plurality of connecting columns, a gap space being formed between the bottom plate and the annular fixed plate, a first light-transmitting hole being arranged on the bottom plate, a plurality of cutting blades distributed around the periphery of the first light-transmitting hole being movably arranged between the bottom plate and the annular movable plate, the plurality of cutting blades being able to move laterally in the gap space to cover or open the first light-transmitting hole, the cutting device further comprising a first clamping mechanism which drives the annular movable plate to move longitudinally in the gap space to clamp or loosen the cutting blades.

[0006] As a preferred embodiment, it is further defined that the first clamping mechanism includes a contact portion fixedly arranged on the annular movable plate and a rotating member rotatably arranged on the stage light, and the rotating member is provided with a driving portion. During the rotation of the rotating member, the driving portion can abut against the contact portion to drive the annular movable plate to clamp or release the cutting blade.

[0007] As a preferred embodiment, it is further defined that the driving portion is mainly composed of a first driving surface and a second driving surface with inconsistent heights, and a transition inclined surface connected between the first driving surface and the second driving surface, the first driving surface is higher than the second driving surface, and when the first driving surface of the driving portion rotates to be opposite to the contact portion, the annular movable plate releases the cutting blade; when the second driving surface of the driving portion rotates to be opposite to the contact portion, the contact portion abuts against the second driving surface and drives the annular movable plate to move longitudinally to press the cutting blade.

[0008] As a preferred embodiment, it is further defined that the contact portion is a bolt rolling bearing.

[0009] As a preferred embodiment, it is further defined that the rotating member is a rotating bearing.

[0010] As a preferred embodiment, it is further defined that a driving handle is fixedly connected to the rotating member.

[0011] As a preferred embodiment, it is further defined as: a first clamping plate and a second clamping plate are arranged between the base plate and the annular movable plate, and the connecting column passes through the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are both provided with a second light-transmitting hole corresponding to the first light-transmitting hole, and a plurality of cutting blades are arranged between the first clamping plate and the second clamping plate; the first clamping plate and the second clamping plate are each provided with a first guide groove corresponding to each cutting blade, and the first guide groove is arranged along the radial direction of the second light-transmitting hole, and a sliding column is provided on the cutting blade to slide with the first guide groove.

[0012] As a preferred embodiment, it is further defined that each cutting piece is hinged with a light cutting piece through two connecting rods, the light cutting piece has a second guide groove arranged along the radial direction of the second light-transmitting hole, and a rivet column passing through the second guide groove is fixedly provided on the bottom plate.

[0013] As a preferred embodiment, it is further defined that a second pressing mechanism is further provided between the annular fixed plate and the annular movable plate, for driving the annular movable plate to move longitudinally in the gap space to press the cutting blade.

[0014] As a preferred embodiment, it is further defined that the second clamping mechanism includes a guide column fixedly arranged on the annular movable plate, a first through hole arranged on the annular fixed plate and for the guide column to pass through, and two fixed columns fixedly arranged on the annular fixed plate and located beside the first through hole, a spring baffle is connected between the two fixed columns, the spring baffle is provided with a second through hole for the guide column to pass through, a spring is sleeved on the guide column, one end of the spring is abutted against the spring baffle, and the other end of the spring passes through the first through hole and abuts against the annular movable plate.

[0015] After adopting the above technical solution, the invention has at least the following beneficial effects:

[0016] 1. The cutting device includes a first clamping mechanism that drives the annular movable plate to move longitudinally in the gap space to compress or loosen the cutting blade. The first clamping mechanism has a clamping and locking function, which can lock the position of the cutting blade after adjustment to prevent it from positional displacement, effectively maintain the cutting shape from deformation, and maintain high-quality stage effects.

[0017] 2. A second clamping mechanism is also provided between the annular fixed plate and the annular movable plate to drive the annular movable plate to move longitudinally in the gap space to clamp the cutting blade. The spring in the second clamping mechanism acts on the annular movable plate to enable the annular movable plate to maintain a certain locking force on the cutting blade, thereby preventing the cutting blade from being too loose when the first clamping mechanism fails to clamp the cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram showing the cutting device installed on the stage light;

[0019] Figure 2 is an exploded view of the cutting device;

[0020] Figure 3 is a cross-sectional view of the cutting device;

[0021] Figure 4 is a structural diagram of a rotating part;

[0022] Figure 5 is a structural diagram in which a cutting blade is arranged between a first clamping plate and a second clamping plate;

[0023] Figure 6 The structure diagram of the contact part and the second driving surface abutting against the cutting blade

[0024] Figure 7 It is a structural diagram showing that the contact portion abuts against the first driving surface but fails to press the cutting blade. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments in the present application and the features described in the embodiments may be combined with each other. The present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0026] As attached Figure 1 To Attachment Figure 3 As shown, a cutting device for stage lighting comprises a bottom plate 1, an annular movable plate 2 and an annular fixed plate 3 which are arranged in sequence from bottom to top, the bottom plate 1 being fixed on the stage light, the bottom plate 1 being fixedly connected to the annular fixed plate 3 after passing through the annular movable plate 2 through a plurality of connecting columns 4, a gap space being formed between the bottom plate 1 and the annular fixed plate 3, a first light-transmitting hole 10 being arranged on the bottom plate 1, a plurality of cutting blades 5 distributed around the periphery of the first light-transmitting hole 10 being movably arranged between the bottom plate 1 and the annular movable plate 2, the plurality of cutting blades 5 being able to move laterally in the gap space to block or open the first light-transmitting hole 10, the cutting device further comprises a first clamping mechanism for driving the annular movable plate 2 to move longitudinally in the gap space to compress or loosen the cutting blade 5, a plurality of first clamping mechanisms are arranged, the first clamping mechanisms corresponding to the cutting blades one by one, the first clamping mechanism having a clamping and locking function, which can lock the position of the cutting blade after adjustment to prevent it from positional displacement, effectively maintain the cutting shape from deformation, and maintain a high-quality stage effect.

[0027] As attached Figure 2 As shown, the first clamping mechanism includes a contact portion 21 fixedly arranged on the annular movable plate 2 and a rotating member 6 rotatably arranged on the stage light. Specifically, the rotating member 6 is fixedly connected to the bridge plate 101 above it, and the positioning column 102 on the stage light passes through the bottom plate 1 and is fixedly connected to the bridge plate 101, or / and the annular fixed plate 3 is fixedly connected to the bridge plate 101 through a threaded column 103. The rotating member 6 is provided with a driving portion 61. During the rotation of the rotating member 6, the driving portion 61 can abut against the contact portion 21 to drive the annular movable plate 2 to press or release the cutting blade 5.

[0028] As attached Figure 4As shown, the driving portion 61 is mainly composed of a first driving surface 611 and a second driving surface 612 of inconsistent heights, and a transition inclined surface 613 connected between the first driving surface 611 and the second driving surface 612. The first driving surface 611 is higher than the second driving surface 612. When the first driving surface 611 of the driving portion 61 rotates to be opposite to the contact portion 21, the annular movable plate 2 releases the cutting blade 5; when the second driving surface 612 of the driving portion 61 rotates to be opposite to the contact portion 21, the contact portion 21 abuts against the second driving surface 612 and drives the annular movable plate 2 to move longitudinally to press the cutting blade 5; specifically, the rotating member 6 is a rotating bearing, and the contact portion 21 is a bolt rolling bearing, so that the contact portion 21 of the rotating member 6 can smoothly slide on the first driving surface 611, the second driving surface 612 and the transition inclined surface 613 when the rotating member 6 rotates.

[0029] As attached Figure 6 and attached Figure 7 As shown, the specific working principle is as follows: since the first driving surface 611 is higher than the second driving surface 612, the distance between the first driving surface 611 and the contact portion 21 is also greater than the distance between the second driving surface 612 and the contact portion 21. When the rotating member 6 rotates, the position of the first driving surface 611 and the contact portion 21 is switched to the position of the second driving surface 612 and the contact portion 21. Therefore, during the switching process, the distance between the driving portion 61 and the contact portion 21 gradually decreases until the driving portion 61 abuts against the contact portion 21, and drives the annular movable plate 2 to move downward in the gap space to press the cutting blade 5, thereby realizing the position locking of the cutting blade 5.

[0030] As attached Figure 4 As shown, a driving handle 62 is fixedly connected to the rotating member 6, and the rotation of the rotating member 6 can be controlled by operating the driving handle 62, thereby controlling the locking and unlocking states of the cutting blade.

[0031] As attached Figure 5 As shown, a first clamping plate 71 and a second clamping plate 72 are arranged between the bottom plate 1 and the annular movable plate 2, and the connecting column 4 passes through the first clamping plate 71 and the second clamping plate 72. The first clamping plate 71 and the second clamping plate 72 are both provided with a second light-transmitting hole 70 corresponding to the first light-transmitting hole 10. A plurality of cutting blades 5 are arranged between the first clamping plate 71 and the second clamping plate 72; the first clamping plate 71 and the second clamping plate 72 are each provided with a first guide groove 73 corresponding to each cutting blade 5, and the first guide groove 73 is arranged along the radial direction of the second light-transmitting hole 70. The cutting blade 5 is provided with a sliding column 51 that slidably cooperates with the first guide groove 73, which facilitates the cutting blade 5 to slide to cut out light beams of different shapes.

[0032] As attached Figure 5 As shown, each cutting blade 5 is hinged with a light cutting blade 9 through two connecting rods 8, and the light cutting blade 9 has a second guide groove 91 arranged along the radial direction of the second light-transmitting hole 70. A rivet column 11 penetrating through the second guide groove 91 is fixedly arranged on the base plate 1. The light cutting blade 9 is manually operated to link the cutting blade 5 to move radially.

[0033] As attached Figure 7 As shown, a second clamping mechanism is also provided between the annular fixed plate 3 and the annular movable plate 2 to drive the annular movable plate 2 to move longitudinally in the gap space to clamp the cutting blade 5. There are multiple second clamping mechanisms, and each second clamping mechanism corresponds to the cutting blade one by one.

[0034] As attached Figure 7 As shown, the second clamping mechanism includes a guide column 22 fixedly arranged on the annular movable plate 2, a first through hole 31 arranged on the annular fixed plate 3 and for the guide column 22 to pass through, and two fixed columns 32 fixedly arranged on the annular fixed plate 3 and located beside the first through hole 31, a spring baffle 33 is connected between the two fixed columns 32, the spring baffle 33 is provided with a second through hole 35 for the guide column 22 to pass through, a spring 34 is sleeved on the guide column 22, one end of the spring 34 is against the spring baffle 33, and the other end of the spring 34 passes through the first through hole 31 and is against the annular movable plate 2. Specifically, when the spring 34 acts on the annular movable plate 2, the annular movable plate 2 maintains a certain locking force on the cutting blade to prevent the cutting blade from being too loose when the first clamping mechanism does not clamp the cutting blade.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various equivalent changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking cutting device for stage lighting, characterized in that: The invention comprises a bottom plate (1), an annular movable plate (2) and an annular fixed plate (3) which are arranged in sequence from bottom to top, the bottom plate (1) being fixed on the stage light, the bottom plate (1) passing through the annular movable plate (2) via a plurality of connecting columns (4) and then being fixedly connected to the annular fixed plate (3), a gap space being formed between the bottom plate (1) and the annular fixed plate (3), a first light-transmitting hole (10) being arranged on the bottom plate (1), a plurality of cutting blades (5) distributed around the periphery of the first light-transmitting hole (10) being movably arranged between the bottom plate (1) and the annular movable plate (2), the plurality of cutting blades (5) being capable of moving laterally in the gap space to cover or open the first light-transmitting hole (10), and the cutting device further comprising a first pressing mechanism for driving the annular movable plate (2) to move longitudinally in the gap space to press or release the cutting blades (5).

2. The cutting device according to claim 1, characterized in that: The first clamping mechanism comprises a contact portion (21) fixedly arranged on the annular movable plate (2) and a rotating member (6) rotatably arranged on the stage light, wherein the rotating member (6) is provided with a driving portion (61), and during the rotation of the rotating member (6), the driving portion (61) can abut against the contact portion (21) to drive the annular movable plate (2) to clamp or release the cutting blade (5).

3. The cutting device according to claim 2, characterized in that: The driving portion (61) is mainly composed of a first driving surface (611) and a second driving surface (612) of different heights, and a transition inclined surface (613) connected between the first driving surface (611) and the second driving surface (612), wherein the first driving surface (611) is higher than the second driving surface (612). When the first driving surface (611) of the driving portion (61) rotates to be opposite to the contact portion (21), the annular movable plate (2) releases the cutting blade (5); when the second driving surface (612) of the driving portion (61) rotates to be opposite to the contact portion (21), the contact portion (21) abuts against the second driving surface (612) and drives the annular movable plate (2) to move longitudinally to press the cutting blade (5).

4. The cutting device according to claim 2, characterized in that: The contact portion (21) is a bolt rolling bearing.

5. The cutting device according to claim 2, characterized in that: The rotating member (6) is a rotating bearing.

6. The cutting device according to claim 2, characterized in that: A driving handle (62) is fixedly connected to the rotating member (6).

7. The cutting device according to claim 1, characterized in that: A first clamping plate (71) and a second clamping plate (72) are arranged between the bottom plate (1) and the annular movable plate (2), the connecting column (4) passes through the first clamping plate (71) and the second clamping plate (72), the first clamping plate (71) and the second clamping plate (72) are both provided with a second light-transmitting hole (70) corresponding to the first light-transmitting hole (10), and a plurality of cutting blades (5) are arranged between the first clamping plate (71) and the second clamping plate (72); the first clamping plate (71) and the second clamping plate (72) are each provided with a first guide groove (73) corresponding to each of the cutting blades (5), the first guide groove (73) being arranged along the radial direction of the second light-transmitting hole (70), and the cutting blade (5) is provided with a sliding column (51) which is slidably matched with the first guide groove (73).

8. The cutting device according to claim 7, characterized in that: Each of the cutting blades (5) is hingedly connected to a light cutting blade (9) via two connecting rods (8); the light cutting blade (9) has a second guide groove (91) arranged along the radial direction of the second light transmission hole (70); and a rivet column (11) penetrating through the second guide groove (91) is fixedly arranged on the bottom plate (1).

9. The cutting device according to any one of claims 1 to 8, characterized in that: A second pressing mechanism is also provided between the annular fixed plate (3) and the annular movable plate (2) for driving the annular movable plate (2) to move longitudinally in the gap space to press the cutting blade (5).

10. The cutting device according to claim 9, characterized in that: The second clamping mechanism comprises a guide post (22) fixedly arranged on the annular movable plate (2), a first through hole (31) arranged on the annular fixed plate (3) and through which the guide post (22) passes, and two fixed posts (32) fixedly arranged on the annular fixed plate (3) and located beside the first through hole (31), a spring baffle (33) being connected between the two fixed posts (32), the spring baffle (33) being provided with a second through hole (35) through which the guide post (22) passes, a spring (34) being sleeved on the guide post (22), one end of the spring (34) being against the spring baffle (33), and the other end of the spring (34) passing through the first through hole (31) being against the annular movable plate (2).

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