A double-rotating prism structure and its superposition structure

Abstract

This utility model relates to the field of stage lighting equipment technology, and more particularly to a double rotating prism structure and its superposition structure. A first prism group and a second prism group are provided along the light-emitting direction. The first prism group includes a first prism base and a first support, and the second prism group includes a second prism base and a second support. This utility model allows the first and second prism groups to rotate around a fixed gear, and the fixed gear enables the first prism base of the first prism group to rotate through a first mounting hole in the first support, and the second prism base of the second prism group to rotate through a second mounting hole in the second support. Power is only required for the first prism group, the second prism group, and the fixed gear. Compared to existing technologies, this design is simpler and less expensive.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting equipment technology, and in particular to a double rotating prism structure and a superimposed structure. Background Technology

[0002] Currently, the prisms in lighting fixtures are generally stacked in pairs to form a double rotating prism. However, most double rotating prisms require four motors to achieve the cutting and rotation functions, resulting in a complex structure and high cost. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a double-rotating prism structure and a superimposed structure, which mainly solves the problems in the background art.

[0004] This invention proposes a double-rotating prism structure, comprising a first prism group and a second prism group along the light emission direction. The first prism group includes a first prism base and a first support, while the second prism group includes a second prism base and a second support. The first and second prism groups are capable of rotating around a fixed gear as an axis. The fixed gear meshes with a first transmission gear and a second transmission gear, respectively. The first transmission gear is mounted on the first support via a first connecting shaft, and the second transmission gear is mounted on the second support via a second connecting shaft. The first transmission gear drives the first prism base to rotate in a first mounting hole in the first support, and the second transmission gear drives the second prism base to rotate in a second mounting hole in the second support.

[0005] A further improvement is that the first prism seat includes a first prism and a first gear seat. The first gear seat has a first through hole. The first prism is mounted on the first gear seat and covers the first through hole. One end of the outer periphery of the first gear seat is slidably connected to a plurality of first balls. The plurality of first balls are placed in a first groove on the inner periphery of the first bracket where the first mounting hole is located. The other end of the outer periphery of the first gear seat has a first gear ring, which meshes with the first transmission gear. The second prism seat includes a second prism and a second gear seat. The second gear seat has a second through hole. The second prism is mounted on the second gear seat and covers the second through hole. One end of the outer periphery of the second gear seat is slidably connected to a plurality of second balls. The plurality of second balls are placed in the second groove on the inner periphery of the second bracket where the first mounting hole is located. The other end of the outer periphery of the second gear seat has a second gear ring, which meshes with the second transmission gear.

[0006] A further improvement is that annular grooves are provided at one end of the outer periphery of the first gear seat and one end of the outer periphery of the second gear seat, respectively. The cross-section of the annular groove is an arc-shaped structure, and the two ends of the cross-section of the annular groove are larger than the inner periphery of the first bracket and the inner periphery of the second bracket, respectively.

[0007] A further improvement is that the fixed gear is fixedly connected to the output shaft of the intermediate motor, and the output shaft of the intermediate motor is also coaxially connected to the first synchronous gear and the second synchronous gear respectively; the first synchronous gear is fixedly connected to the first bracket, the first synchronous gear is connected to the first drive gear through the first transmission belt, and the first drive gear is fixedly connected to the output shaft of the first motor; the second synchronous gear is fixedly connected to the second bracket, the second synchronous gear is connected to the second drive gear through the second transmission belt, and the second drive gear is fixedly connected to the output shaft of the second motor.

[0008] A further improvement is that the first bracket includes a first arc-shaped portion, which is fixedly connected to the first synchronous gear; the second bracket includes a second arc-shaped portion, which is fixedly connected to the second synchronous gear.

[0009] A further improvement is that there are two first arc-shaped portions, which are located at both ends of one side of the first support and form a C-shaped structure; there are also two second arc-shaped portions, which are located at both ends of one side of the second support and form a C-shaped structure.

[0010] A further improvement is that the intermediate motor, the first motor, and the second motor are respectively fixed on the side of the fixing plate away from the first prism group and the second prism group, and the fixing plate is provided with a stop post, which is located on the same side of the fixing plate as the first prism group and the second prism group.

[0011] This invention also proposes a superimposed structure, comprising at least two sets of the above-mentioned double-rotating prism structures.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention enables the first prism group and the second prism group to rotate around a fixed gear as the axis, and enables the first prism seat of the first prism group to rotate in the first mounting hole of the first bracket and the second prism seat of the second prism group to rotate in the second mounting hole of the second bracket through the fixed gear. It only requires power to the first prism group, the second prism group and the fixed gear. Compared with the prior art, it has a simple structure and lower cost. Attached Figure Description

[0013] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the present invention. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0014] Figure 1 This is a schematic diagram of the superimposed structure of this utility model; Figure 2 This is a schematic diagram of the connection of the fixed gear of this utility model; Figure 3 This is a schematic diagram of the first gear seat and the second gear seat of this utility model before installation; in: 11. First support; 12. First prism; 13. First gear seat; 14. First transmission gear; 111. First arc-shaped portion; 112. First mounting hole; 121. First through hole; 122. First ball; 123. First gear ring; 124. Ring groove; 21. Second support; 22. Second prism; 23. Second gear seat; 24. Second transmission gear; 211. Second arc-shaped portion; 212. Second mounting hole; 221. Second through hole; 222. Second bead; 223. Second gear ring; 3. Fixed gear; 4. First synchronous gear; 5. First drive gear; 6. First transmission belt; 7. Second synchronous gear; 8. Second drive gear; 9. Second transmission belt; 10. First motor; 20. Second motor; 30. Intermediate motor; 40. Fixing plate. Detailed Implementation

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0016] In one embodiment, a dual-rotating prism structure includes a first prism group and a second prism group along the light emission direction. The first prism group includes a first prism base and a first support 11, and the second prism group includes a second prism base and a second support 21. The first and second prism groups can rotate about a fixed gear 3 as an axis. The fixed gear 3 meshes with a first transmission gear 14 and a second transmission gear 24, respectively. The first transmission gear 14 is mounted on the first support 11 via a first connecting shaft, and the second transmission gear 24 is mounted on the second support 21 via a second connecting shaft. The first transmission gear 14 drives the first prism. The first prism seat rotates in the first mounting hole 112 of the first bracket 11, and the second transmission gear 24 drives the second prism seat to rotate in the second mounting hole 212 of the second bracket 21. The first prism group and the second prism group can rotate around the fixed gear 3 as the axis, and the first prism seat of the first prism group can rotate in the first mounting hole 112 of the first bracket 11 and the second prism seat of the second prism group can rotate in the second mounting hole 212 of the second bracket 21 through the fixed gear 3. Only the first prism group, the second prism group and the fixed gear 3 need to be powered. Compared with the prior art, the structure is simple and the cost is lower.

[0017] In one embodiment, to achieve the first transmission gear 14 driving the first prism seat to rotate in the first mounting hole 112 of the first bracket 11, and the second transmission gear 24 driving the second prism seat to rotate in the second mounting hole 212 of the second bracket 21, specifically: the first prism seat includes a first prism 12 and a first gear seat 13. The first gear seat 13 is provided with a first through hole 121. The first prism 12 is mounted on the first gear seat 13 and covers the first through hole 121. One end of the outer periphery of the first gear seat 13 is slidably connected to a plurality of first beads 122. The plurality of first beads 122 are placed in a first groove on the inner periphery of the first bracket 11 where the first mounting hole 112 is located. The other end of the outer periphery of the gear seat 13 is provided with a first gear ring 123, which meshes with the first transmission gear 14; the second prism seat includes a second prism 22 and a second gear seat 23, the second gear seat 23 is provided with a second through hole 221, the second prism 22 is installed on the second gear seat 23 and the second prism 22 covers the second through hole 221, one end of the outer periphery of the second gear seat 23 is slidably connected with a plurality of second balls 222, the plurality of second balls 222 are placed in the second groove of the inner periphery of the second bracket 21 where the first mounting hole 112 is located, the other end of the outer periphery of the second gear seat 23 is provided with a second gear ring 223, which meshes with the second transmission gear 24.

[0018] To further prevent the first beads 122 from falling off when one end of the outer periphery of the first gear seat 13 is slidably connected to the first beads 122, and the second beads 222 from falling off when one end of the outer periphery of the second gear seat 23 is slidably connected to the second beads 222, annular grooves 124 are provided at one end of the outer periphery of the first gear seat 13 and one end of the outer periphery of the second gear seat 23, respectively. The cross-section of the annular groove 124 is an arc-shaped structure, and the two ends of the cross-section of the annular groove 124 are larger than the inner periphery of the first support 11 and the inner periphery of the second support 21, respectively.

[0019] In one embodiment, the rotation of the fixed gear 3 is achieved by an intermediate motor 30, and the first prism group and the second prism group can rotate around the fixed gear 3 respectively by a first synchronous gear 4 and a second synchronous gear 7. Specifically: the fixed gear 3 is fixedly connected to the output shaft of the intermediate motor 30, and the output shaft of the intermediate motor 30 is also coaxially connected to the first synchronous gear 4 and the second synchronous gear 7 respectively; the first synchronous gear 4 is fixedly connected to the first bracket 11, the first synchronous gear 4 is connected to the first driving gear 5 through a first transmission belt 6, and the first driving gear 5 is fixedly connected to the output shaft of the first motor 10; the second synchronous gear 7 is fixedly connected to the second bracket 21, the second synchronous gear 7 is connected to the second driving gear 8 through a second transmission belt 9, and the second driving gear 8 is fixedly connected to the output shaft of the second motor 20.

[0020] Furthermore, the first bracket 11 includes a first arc-shaped portion 111, which is fixedly connected to the first synchronous gear 4, thereby improving the stability of the fixed connection between the two; the second bracket 21 includes a second arc-shaped portion 211, which is fixedly connected to the second synchronous gear 7, thereby also improving the stability of the fixed connection between the two; the fixed connection can be described as a bolt connection.

[0021] Furthermore, in order to improve the stability of the fixation, there are two first arc-shaped portions 111, which are located at both ends of one side of the first support 11 and form a C-shaped structure; there are two second arc-shaped portions 211, which are located at both ends of one side of the second support 21 and form a C-shaped structure.

[0022] In one embodiment, the intermediate motor 30, the first motor 10, and the second motor 20 are respectively fixed on the side of the fixing plate 40 away from the first prism group and the second prism group to prevent mutual interference. The fixing plate 40 is provided with a stop post, which is located on the same side of the fixing plate 40 as the first prism group and the second prism group to prevent it from acting as a stop when cutting out.

[0023] In one embodiment, the present invention also proposes a superposition structure, including at least two sets of the above-mentioned double-rotation prism structures, to achieve free superposition.

[0024] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting the present invention. Clearly, the above embodiments of the present invention are merely examples to clearly illustrate the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A double-rotating prism structure, characterized in that, A first prism group and a second prism group are provided along the light output direction. The first prism group includes a first prism base and a first support (11). The second prism group includes a second prism base and a second support (21). The first prism group and the second prism group can rotate around a fixed gear (3) as the axis. The fixed gear (3) meshes with a first transmission gear (14) and a second transmission gear (24) respectively. The first transmission gear (14) is mounted on the first support (11) through a first connecting shaft. The second transmission gear (24) is mounted on the second support (21) through a second connecting shaft. The first transmission gear (14) drives the first prism base to rotate in the first mounting hole (112) of the first support (11). The second transmission gear (24) drives the second prism base to rotate in the second mounting hole (212) of the second support (21).

2. The dual-rotating prism structure according to claim 1, wherein, The first prism seat includes a first prism (12) and a first gear seat (13). The first gear seat (13) is provided with a first through hole (121). The first prism (12) is mounted on the first gear seat (13) and the first prism (12) covers the first through hole (121). One end of the outer periphery of the first gear seat (13) is slidably connected to a plurality of first balls (122). The plurality of first balls (122) are placed in the first groove on the inner periphery of the first bracket (11) where the first mounting hole (112) is located. The other end of the outer periphery of the first gear seat (13) is provided with a first gear ring (123). The first gear ring (123) meshes with the first transmission gear (14). The second prism seat includes a second prism (22) and a second gear seat (23). The second gear seat (23) is provided with a second through hole (221). The second prism (22) is mounted on the second gear seat (23) and the second prism (22) covers the second through hole (221). One end of the outer periphery of the second gear seat (23) is slidably connected to a plurality of second balls (222). The plurality of second balls (222) are placed in the second groove on the inner periphery of the second bracket (21) where the first mounting hole (112) is located. The other end of the outer periphery of the second gear seat (23) is provided with a second gear ring (223). The second gear ring (223) meshes with the second transmission gear (24).

3. The dual-rotating prism structure according to claim 2, wherein, One end of the outer periphery of the first gear seat (13) and one end of the outer periphery of the second gear seat (23) are respectively provided with annular grooves (124). The cross-section of the annular groove (124) is an arc-shaped structure. The two ends of the cross-section of the annular groove (124) are larger than the inner periphery of the first support (11) and the inner periphery of the second support (21), respectively.

4. The dual-rotating prism structure of claim 1, wherein, The fixed gear (3) is fixedly connected to the output shaft of the intermediate motor (30), and the output shaft of the intermediate motor (30) is also coaxially connected to the first synchronous gear (4) and the second synchronous gear (7); the first synchronous gear (4) is fixedly connected to the first bracket (11), the first synchronous gear (4) is connected to the first driving gear (5) through the first transmission belt (6), and the first driving gear (5) is fixedly connected to the output shaft of the first motor (10); the second synchronous gear (7) is fixedly connected to the second bracket (21), the second synchronous gear (7) is connected to the second driving gear (8) through the second transmission belt (9), and the second driving gear (8) is fixedly connected to the output shaft of the second motor (20).

5. The dual-rotating prism structure according to claim 4, wherein, The first bracket (11) includes a first arc-shaped portion (111), and the first arc-shaped portion (111) of the first bracket (11) is fixedly connected to the first synchronous gear (4); the second bracket (21) includes a second arc-shaped portion (211), and the second arc-shaped portion (211) of the second bracket (21) is fixedly connected to the second synchronous gear (7).

6. The dual-rotating prism structure according to claim 5, wherein, There are two first arc-shaped portions (111), which are located at both ends of one side of the first support (11) and form a C-shaped structure; there are two second arc-shaped portions (211), which are located at both ends of one side of the second support (21) and form a C-shaped structure.

7. The dual-rotating prism structure of claim 4, wherein, The intermediate motor (30), the first motor (10) and the second motor (20) are respectively fixed on the side of the fixing plate (40) away from the first prism group and the second prism group. The fixing plate (40) is provided with a stop post, which is located on the same side of the fixing plate (40) as the first prism group and the second prism group.

8. A superposition structure, characterized by It includes at least two sets of the dual rotating prism structures described in any one of claims 1-7.

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