Swing angle locking structure applied to stage lamp

Abstract

A swing angle locking structure applied to a stage lamp comprises a mounting lamp holder, a transmission groove is formed in the mounting lamp holder, and a limiting assembly and a mounting wheel are arranged in the transmission groove; a locking wheel coaxial with the mounting wheel is arranged on the mounting wheel, and a plurality of locking grooves distributed in the circumferential direction of the locking wheel are formed in the outer circumferential face of the locking wheel. The limiting assembly comprises a rotating arm rotationally installed on the installation lamp holder through a hinge shaft and an elastic clamping protrusion assembly installed on the rotating arm. The rotating arm is provided with an operation part and a clamping protrusion used for limiting rotation of the installation wheel when the rotating arm is clamped into the locking groove. A positioning hole structure corresponding to the limiting assembly is arranged in the transmission groove and comprises a locking hole and an unlocking hole which are used for being matched with the elastic clamping assembly to be clamped in to limit rotation of the rotating arm. The limiting assembly is simple in structure and few in component parts, and the production cost can be remarkably reduced while the mounting wheel can be locked and cannot rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lights, in particular to a swing angle locking structure applied to a stage light. Background Art

[0002] Stage lights play an important role in modern stage lighting. They use electric devices to precisely control the swing angle of the lamp head, so that the lamp head can project light from multiple angles and directions, adding dynamic effects to the stage and meeting various performance needs.

[0003] Referring to the stage light disclosed in the technical solution of patent number CN202420242914.8, this technical solution provides a limit assembly on the support arm to restrict the rotation of the lamp head. When the rotation of the lamp head needs to be restricted, the limit rod of the limit assembly is linked to the limit column and inserted into the limit hole of the limit wheel to lock the angle of the lamp head, effectively preventing the lamp head from rotating and being damaged by collision during transportation. However, the limit assembly structure of this technical solution is relatively complex, with many components, which is difficult to assemble, resulting in increased production costs. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a swing angle locking structure applied to a stage light.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A swing angle locking structure for a stage light includes a lamp holder, the lamp holder having a transmission slot, the transmission slot having at least one limit assembly and at least one mounting wheel rotatable relative to the lamp holder, each limit assembly corresponding to one mounting wheel; and is characterized in that:

[0007] The mounting wheel is provided with a locking wheel coaxially arranged with the mounting wheel, and the outer circumferential surface of the locking wheel is provided with a plurality of locking grooves distributed along the circumference thereof; the limiting assembly includes a rotating arm rotatably mounted on the mounting lamp holder by a hinge shaft and an elastic clamping protrusion assembly mounted on the rotating arm, the rotating arm is provided with an operating portion for controlling the rotation of the rotating arm about the hinge shaft as the center, and a clamping protrusion for limiting the rotation of the mounting wheel when the clamping protrusion is engaged with the locking groove, and an avoidance notch is provided on the outer side of the mounting lamp holder for allowing the operating portion to extend outside the mounting lamp holder;

[0008] A positioning hole structure corresponding to the limiting assembly is provided in the transmission groove, and the positioning hole structure includes an upper locking hole and an unlocking hole for cooperating with the elastic locking assembly to lock in and limit the rotation of the rotating arm.

[0009] In the present invention, the mounting wheel and the locking wheel are integrally formed.

[0010] In the present invention, a side cover for shielding the transmission groove is installed on the lamp holder.

[0011] In the present invention, a rotating mounting slot is provided on the rotating arm, and an extension hole is provided at one end of the rotating mounting slot. The elastic locking assembly is installed in the rotating mounting slot. The elastic locking assembly includes a driving spring, a clamping piece and a locking bolt. The locking bolt has at least a portion of a thread engaged in the rotating mounting slot. The two ends of the driving spring respectively rest on the clamping piece and the locking bolt. The clamping piece is used to cooperate with the locking hole and the unlocking hole. Under the action of the driving spring, the clamping piece partially protrudes from the extension hole.

[0012] In the present utility model, the clamping piece is a positioning bead.

[0013] In the present invention, an extension portion is bent on the rotating arm, and the clamping protrusion is integrally formed on the extension portion.

[0014] In the present invention, the operating portion and the hinge shaft are respectively located at two ends of the rotating arm.

[0015] In the present invention, the articulated shaft includes an articulated limit head and an articulated bolt, a articulated hole is provided on the rotating arm, a convex shaft portion is provided on the articulated limit head and passes through the articulated hole and abuts against the transmission groove surface, a articulated screw hole is provided on the convex shaft portion, and the articulated screw hole passes through the articulated limit head, the head of the articulated bolt abuts against the mounting lamp holder, and the screw end passes through the through hole of the mounting lamp holder and is threadedly connected to the articulated screw hole.

[0016] In the present utility model, the hinged limiting head is a hexagonal structure.

[0017] The beneficial effects of the present invention: the limit assembly of the present invention includes a rotating arm rotatably mounted on the lamp holder by adopting a hinged shaft, and an elastic cam assembly composed of a driving spring, a clamp and a locking bolt. It has a simple structure and few components, which achieves the purpose of reducing the number of parts and simplifying the assembly steps, and significantly reduces the production cost; and the limit assembly realizes the stable fixation of the rotating arm in the locked and unlocked states through the cooperation of the elastic cam assembly and the positioning hole structure, thereby ensuring the stability of the lamp holder after locking; in addition, the unlocking and locking operations are simple, and the user can easily lock and unlock the swing angle of the lamp holder through the operating part; in addition, due to the simplified structure, maintenance also becomes easier, reducing maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 Installation diagram for wheels and limiter components Figure 1 ;

[0020] Figure 2 for Figure 1 Cross-sectional view of AA;

[0021] Figure 3 Installation diagram for wheels and limiter components Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the installation of two mounting wheels and two limit assemblies;

[0023] Figure 5 It is a three-dimensional diagram of the stage lights;

[0024] Figure 6 This is a diagram of the internal structure of a stage light. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Reference Figure 1-6A swing angle locking structure used in stage lights includes a mounting lamp holder 1, a transmission groove 10 is provided on the mounting lamp holder 1, a side cover 2 is installed on the mounting lamp holder 1 to shield the transmission groove 10, and at least one limiting component and at least one mounting wheel 3 that can rotate relative to the mounting lamp holder 1 are provided in the transmission groove 10, each limiting component corresponds to a mounting wheel 3, and the mounting wheel 3 is a synchronous pulley.

[0029] Furthermore, the mounting wheel 3 is provided with a locking wheel 31 coaxially arranged therewith, and a plurality of locking grooves 311 distributed along its circumference are provided on the outer circumference of the locking wheel 31. The limiting assembly includes a rotating arm 6 rotatably mounted on the mounting lamp holder 1 using a hinge shaft 5, and an elastic locking protrusion 62 mounted on the rotating arm 6. The rotating arm 6 is provided with an operating portion 61 for controlling the rotation of the rotating arm 6 about the hinge shaft 5, and a locking protrusion 62 for limiting the rotation of the mounting wheel 3 when the operating portion 61 is engaged with the locking groove 311. The outer side of the mounting lamp holder 1 is provided with an avoidance notch 103 for allowing the operating portion 61 to extend outside the mounting lamp holder 1.

[0030] Furthermore, a positioning hole structure corresponding to the limiting assembly is provided in the transmission groove 10, and the positioning hole structure includes an upper locking hole 101 and an unlocking hole 102 for cooperating with the elastic locking assembly to engage in limiting the rotation of the rotating arm 6. The elastic locking assembly is configured to be able to engage in the upper locking hole 101 to limit the rotation of the rotating arm 6 when the locking protrusion 62 is engaged in the locking groove 311, and to engage in the unlocking hole 102 to limit the rotation of the rotating arm 6 when the locking protrusion 62 is disengaged from the locking groove 311, thereby reducing the chance of the rotating arm 6 moving at will.

[0031] As a preferred embodiment, the mounting wheel 3 and the locking wheel 31 are integrally formed and arranged, and the structure is stable. In other embodiments, the locking wheel 31 can also be fixed to the mounting wheel 3 using mounting bolts to facilitate replacement of the locking wheel 31 or the mounting wheel 3 after damage.

[0032] As a preferred embodiment, the rotating arm 6 is provided with a rotating mounting slot, one end of which is provided with a protruding hole, and the elastic locking assembly is installed in the rotating mounting slot. The elastic locking assembly includes a driving spring 7, a clamping member 8, and a locking bolt 9. The clamping member 8 partially protrudes from the protruding hole, and the locking bolt 9 is at least partially threaded into the rotating mounting slot. The two ends of the driving spring 7 respectively abut against the clamping member 8 and the locking bolt 9. The clamping member 8 is used to cooperate with the upper locking hole 101 and the unlocking hole 102. The clamping member 8 partially protrudes from the protruding hole under the action of the driving spring 7. In this embodiment, the clamping member 8 uses a positioning ball, and the ball can roll on the groove surface of the transmission groove 10, thereby reducing damage to the groove surface of the transmission groove 10 when the clamping member 8 moves. At the same time, the spherical surface of the ball is also easy to be stuck in the upper locking hole 101 and the unlocking hole 102, thereby improving the quality of positioning.

[0033] As a preferred embodiment, an extension portion 63 is bent on the rotating arm 6 , and the latching protrusion 62 is integrally formed on the extension portion 63 , thereby ensuring the structural stability between the latching protrusion 62 and the rotating arm 6 .

[0034] In this embodiment, the rotating arm 6 is a metal sheet, with the operating portion 61 and the hinge shaft 5 located at either end of the rotating arm 6. This allows for a large swing range, making locking and unlocking the rotating arm 6 quicker. A first reinforcement block is fixed to the rotating arm 6, and the rotating mounting slot extends onto the first reinforcement block, thereby increasing the length of the rotating mounting slot to meet the installation requirements of the limit assembly.

[0035] In this embodiment, the articulation shaft 5 includes an articulation limit head 51 and an articulation bolt 52. The rotating arm 6 is provided with a articulation hole. The articulation limit head 51 is a hexagonal structure to facilitate cooperation with a wrench. The articulation limit head 51 is provided with a convex shaft portion that passes through the articulation hole and abuts against the groove surface of the transmission groove 10. The convex shaft portion is provided with a articulation screw hole. The articulation screw hole is set through the articulation limit head 51. The head of the articulation bolt 52 abuts on the mounting lamp holder 1, and the screw end passes through the through hole of the mounting lamp holder 1 and is threadedly connected to the articulation screw hole, thereby locking the articulation limit head 51 and the articulation bolt 52, and limiting the rotating arm 6 between the transmission groove 10 and the articulation limit head 51, thereby realizing the articulated installation of the rotating arm 6.

[0036] When it is necessary to lock the mounting wheel 3 to fix the angle of the lamp head 200, the electronic control device is first used to control the mounting wheel 3 to rotate to the rotation angle required to lock the lamp head 200. Then the user uses the operating part 61 to drive the rotating arm 6 to rotate along the first direction with the hinge axis 5 as the center. At this time, the latch 62 moves synchronously with the rotating arm 6 to approach the mounting wheel 3. When the clamp 8 moves to the upper locking hole 101, the clamp 8 is stuck in the upper locking hole 101 under the action of the driving spring 7. The user understands that the latch 62 is stuck in the locking groove 311 based on the resistance generated after the clamp 8 is stuck in the upper locking hole 101 at this time, thereby stopping the operation of the rotating arm 6 and completing the action of locking the mounting wheel 3. Moreover, under the action of the mutual cooperation between the clamp 8 and the upper locking hole 101, the rotating arm 6 is not easy to rotate when the user is not operating, thereby ensuring the stability after locking the lamp head 200.

[0037] When it is necessary to unlock the mounting wheel 3 to release the lamp head 200, the user uses the operating part 61 to drive the rotating arm 6 to rotate in the second direction around the hinge shaft 5. At this time, the latch 62 moves synchronously with the rotating arm 6 away from the mounting wheel 3. When the latch 8 moves to the unlocking hole 102, the latch 8 is stuck in the unlocking hole 102 under the action of the driving spring 7. The user understands that the latch 62 has disengaged from the locking groove 311 based on the resistance generated after the latch 8 is stuck in the unlocking hole 102, and thus stops operating the rotating arm 6 to complete the action of unlocking the mounting wheel 3; and under the action of the mutual cooperation between the latch 8 and the unlocking hole 102, the rotating arm 6 is not easy to rotate when the user is not operating, thereby effectively preventing the rotating arm 6 from shaking at will and interfering with the rotation of the mounting wheel 3 after unlocking the lamp head 200.

[0038] As a preferred embodiment, the mounting lamp holder 1 is U-shaped, and the mounting lamp holder 1 includes a rotating base 11 and mounting arms 12 arranged at the left and right ends of the rotating base 11, and the transmission groove 10 is provided on the lower end of the rotating base 11 and the outer side of the mounting arm 12.

[0039] Furthermore, there are two mounting wheels 3, one of which is rotatably mounted on the rotating base 11 and has its lower end fixed on the lamp base 100, and the other mounting wheel 3 is rotatably mounted on one of the mounting arms 12 and is fixedly connected to one side of the lamp head 200. A horizontal mating wheel is fixed to the other side of the lamp head 200, and the horizontal mating wheel is rotatably mounted on the other mounting arm 12, so that the lamp head 200 is installed between the two mounting arms 12.

[0040] Furthermore, the rotating base 11 is equipped with two driving motors that respectively drive two mounting wheels 3. The driving pulleys of the driving motors are connected to the corresponding mounting wheels 3 through a transmission belt. When the driving pulleys of the driving motors rotate, the transmission belts can be used to cooperate with the corresponding mounting wheels 3 to adjust the angle of the lamp head 200.

[0041] In this embodiment, the outer sides of the two mounting arms 12 are each equipped with a side cover 2 for shielding the transmission groove 10. The side cover 2 can protect the mounting wheel 3 and the limiting assembly on the mounting arm 12, reducing the risk of them being damaged by external debris.

[0042] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A swing angle locking structure for a stage lamp, comprising a mounting lamp holder (1), wherein the mounting lamp holder (1) is provided with a transmission groove (10), wherein the transmission groove (10) is provided with at least one limiting component and at least one mounting wheel (3) rotatable relative to the mounting lamp holder (1), wherein each limiting component corresponds to one mounting wheel (3); characterized in that: The mounting wheel (3) is provided with a locking wheel (31) coaxially arranged with the mounting wheel (3), and the outer circumferential surface of the locking wheel (31) is provided with a plurality of locking grooves (311) distributed along the circumference thereof; the limiting assembly comprises a rotating arm (6) rotatably mounted on the mounting lamp holder (1) by using a hinge shaft (5) and an elastic clamping protrusion (62) assembly mounted on the rotating arm (6); the rotating arm (6) is provided with an operating portion (61) for controlling the rotating arm (6) to rotate around the hinge shaft (5) and a clamping protrusion (62) for limiting the rotation of the mounting wheel (3) when the operating portion (61) is clamped into the locking groove (311); and an avoidance notch (103) is provided on the outer side of the mounting lamp holder (1) for allowing the operating portion (61) to extend outside the mounting lamp holder (1); A positioning hole structure corresponding to the limiting assembly is provided in the transmission groove (10), and the positioning hole structure comprises an upper locking hole (101) and an unlocking hole (102) for engaging with the elastic locking assembly to limit the rotation of the rotating arm (6).

2. The swing angle locking structure for a stage light according to claim 1, characterized in that: The mounting wheel (3) and the locking wheel (31) are integrally formed.

3. The swing angle locking structure for a stage light according to claim 1, characterized in that: A side cover (2) for shielding the transmission groove (10) is installed on the lamp holder (1).

4. The swing angle locking structure for a stage light according to claim 1, characterized in that: The rotating arm (6) is provided with a rotating mounting groove, one end of which is provided with a protruding hole, and the elastic locking assembly is installed in the rotating mounting groove, and the elastic locking assembly comprises a driving spring (7), a clamping member (8) and a locking bolt (9), at least part of which is threadedly engaged in the rotating mounting groove, and the two ends of the driving spring (7) respectively abut against the clamping member (8) and the locking bolt (9), and the clamping member (8) is used to cooperate with the locking hole (101) and the unlocking hole (102), and the clamping member (8) partially protrudes from the protruding hole under the action of the driving spring (7).

5. The swing angle locking structure for a stage light according to claim 4, characterized in that: The clamping member (8) adopts a positioning bead.

6. The swing angle locking structure for a stage light according to claim 1, characterized in that: An extension portion (63) is bent on the rotating arm (6), and the clamping protrusion (62) is integrally formed and arranged on the extension portion (63).

7. The swing angle locking structure for a stage light according to claim 1, characterized in that: The operating portion (61) and the hinge shaft (5) are respectively located at two ends of the rotating arm (6).

8. The swing angle locking structure for a stage light according to claim 1, characterized in that: The hinge shaft (5) includes a hinge limit head (51) and a hinge bolt (52); the rotating arm (6) is provided with a hinge hole; the hinge limit head (51) is provided with a convex shaft portion that passes through the hinge hole and abuts against the groove surface of the transmission groove (10); the convex shaft portion is provided with a hinge screw hole; the hinge screw hole passes through the hinge limit head (51); the head of the hinge bolt (52) abuts against the mounting lamp holder (1); the screw end passes through the through hole of the mounting lamp holder (1) and is threadedly connected to the hinge screw hole.

9. The swing angle locking structure for a stage light according to claim 8, characterized in that: The hinged limiting head (51) is a hexagonal structure.

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