Switching device

Abstract

The utility model provides a switching device which is used for installing a first lighting effect accessory on a lamp holder of a film and television lamp or a second lighting effect accessory. The switching device comprises a cover plate, a rotating disc and a plurality of sliding blocks. A plurality of guide grooves are formed in the rotary table, and an included angle is formed between the extending track of each guide groove and the circumferential track of the rotary table. The sliding blocks are arranged in the circumferential direction of the cover plate at intervals and can move in the radial direction of the cover plate relative to the cover plate. And the end part of the sliding block convexly extends to the inner side wall, corresponding to the interface, of the cover plate along the radial direction of the cover plate. And each sliding block is connected with the turntable. When the rotating disc rotates, the sliding blocks can slide in the extending direction of the guide grooves in the rotating disc, so that the sliding blocks move in the direction away from or close to the center of the connector, the ends of the multiple sliding blocks can define assembling openings with different calibers, and the assembling openings are connected with first lighting effect accessories of different models in a matched mode. And a user can adjust the switching device to form the assembly ports with different calibers, so that the switching device is convenient to use and carry.

Description

Technical Field

[0001] The utility model relates to the field of photographic equipment, in particular to a switching device. Background Art

[0002] The lamp head of an existing film and television lamp can usually be installed with light effect accessories of different functions and structures to improve and adjust the lighting effect. The size of the lamp head is usually fixed, while the light effect accessories on the market have various models. When the model of the light effect accessory does not match the size of the lamp head, an adapter ring is usually required to achieve the connection between the light effect accessory and the lamp head. However, depending on the different models of the light effect accessory, the user needs to prepare adapter rings of different sizes, which is costly and inconvenient to carry. Therefore, it is necessary to design an adapter device that can be used for different models of light effect accessories. Utility Model Content

[0003] One purpose of the utility model is to solve the deficiencies in the prior art and provide a switching device that can adapt to connect light effect accessories of different sizes.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A switching device is used to install a first light effect accessory on a lamp head of a movie light or a second light effect accessory, the switching device comprising:

[0006] A cover plate, wherein an interface is provided on the cover plate;

[0007] A turntable, the turntable is rotatably disposed on the cover plate, a plurality of guide grooves are disposed on the turntable, and the plurality of guide grooves are spaced apart along the circumference of the turntable; an angle is formed between an extension track of each guide groove and a circumferential track of the turntable;

[0008] A plurality of sliders are arranged at intervals along the circumference of the cover plate, and each slider corresponds to a guide groove; the slider can move relative to the cover plate along the radial direction of the cover plate, and the end of the slider protrudes from the inner wall of the cover plate corresponding to the interface along the radial direction of the cover plate; each slider is connected to the turntable, and the rotation of the turntable can make the slider slide along the extension direction of the guide groove, so that the end of the slider moves in a direction away from or close to the center of the interface, so that the ends of the plurality of sliders can enclose to form assembly ports of different calibers, so as to adapt to and connect different models of the first light effect accessories.

[0009] In an exemplary embodiment, each of the sliders includes a main body and a guide column arranged on the main body, and the guide column is at least partially inserted into the guide groove; the rotation of the turntable can cause the groove wall of the guide groove to abut against the guide column, so that the guide column moves along the extension trajectory of the guide groove, so that the main body moves in a direction away from or close to the center of the interface.

[0010] In an exemplary embodiment, the outer contour of the main body is trapezoidal; the main body includes a large head end and a small head end, the large head end and the small head end are arranged opposite to each other, and the large head end is close to the turntable; the cover plate is provided with a notch on which the main body can be clamped, so that the slider can be installed on the cover plate.

[0011] In an exemplary embodiment, the adapter device includes a limiting member, and the limiting member includes a connecting end connected to the cover plate, and an abutting end arranged opposite to the connecting end, and the abutting end abuts against the turntable to fix the turntable.

[0012] In an exemplary embodiment, the limiting member includes a receiving shell, an elastic portion and a ball, one end of the receiving shell is a connecting end connected to the cover plate, the other end of the receiving shell is provided with an interface, a part of the ball and the elastic portion are located in the opening, and the other part of the ball is the abutting end, which protrudes out of the opening and abuts against the turntable.

[0013] In an exemplary embodiment, at least one locking groove is provided on the turntable, and the end of the limiting member can be locked in the locking groove to fix the turntable.

[0014] In an exemplary embodiment, the turntable includes a turntable body and an operating portion, wherein the operating portion is protrudingly disposed on an outer circumference of the turntable body, and the operating portion is operated by a user to rotate the turntable.

[0015] In an exemplary embodiment, the cover plate is provided with a plurality of through holes, and the turntable is correspondingly provided with a plurality of avoidance grooves, and the avoidance grooves extend along the circumferential trajectory of the turntable; the connecting member passes through the through holes and the avoidance grooves at the same time and is connected to the lamp holder or the second light effect accessory.

[0016] In an exemplary embodiment, a receiving groove is recessed on one side of the cover plate, and the turntable is received in the receiving groove; the cover plate also includes at least one reinforcing rib, each of which is arranged at the bottom of the receiving groove, and each of which extends along the radial direction of the cover plate.

[0017] In an exemplary embodiment, a flange is provided on the inner peripheral wall of the cover plate corresponding to the interface, and the flange extends in a direction away from the turntable. The flange is used to connect with the lamp head or the second light effect accessory to fix the cover plate to the lamp head or the second light effect accessory.

[0018] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0019] The adapter device of the utility model includes a cover plate, a turntable and a plurality of sliders. The sliders are arranged at intervals along the circumference of the cover plate and can move relative to the cover plate in the radial direction of the cover plate. The ends of the sliders protrude from the inner side wall of the cover plate corresponding to the interface in the radial direction of the cover plate. Each slider is connected to the turntable. The user only needs to turn the turntable to slide the slider along the extension direction of the guide groove on the turntable, so that the slider moves in a direction away from or close to the center of the interface, so that the ends of the plurality of sliders can be enclosed to form assembly ports of different calibers, and adapt to connect different models of first light effect accessories. It can be understood that the user does not need to prepare adapter rings of different sizes, but only needs to assemble the adapter device, and by adjusting the adapter device, it can adapt to connect different models of first light effect accessories, which is easy to carry and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of an adapter device according to one embodiment of the utility model installed on a second light effect attachment.

[0021] Figure 2 yes Figure 1 The three-dimensional structural schematic diagram of the adapter is shown.

[0022] Figure 3 yes Figure 2 An exploded view of the adapter is shown.

[0023] Figure 4 yes Figure 2 A schematic structural diagram of the cover plate in the adapter device shown.

[0024] Figure 5 yes Figure 4 A schematic structural diagram of the cover plate from another perspective is shown.

[0025] Figure 6 yes Figure 2 Cross-sectional view along the AA direction.

[0026] Figure 7 yes Figure 2 A schematic structural diagram of a turntable in the transfer device shown.

[0027] Figure 8 yes Figure 3A three-dimensional view of the limiting member in the adapter device shown.

[0028] The following are the descriptions of the reference numerals:

[0029] 10. Cover plate; 11. Plate body; 111. Through hole; 112. Interface; 12. Receiving groove; 121. Protruding edge; 13. Inner peripheral wall; 14. Outer peripheral wall; 141. Extended wall; 15. Flange; 16. Reinforcing rib; 17. Notch; 18. Notch; 19. Limiting groove;

[0030] 20. turntable; 21. avoidance groove; 22. disk body; 23. operation part; 24. guide groove; 25. positioning groove;

[0031] 30. Slider; 31. Main body; 311. Large end; 312. Small end; 32. Guide column; 33. Assembly port;

[0032] 40. Limiting member; 41. Connecting end; 42. Abutting end; 43. Accommodating shell; 44. Ball;

[0033] 50. Connectors;

[0034] 60. Second light effect attachment. DETAILED DESCRIPTION

[0035] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0036] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] The present embodiment provides a new adapter, which is easy to use and can be adapted to connect different types of first light effect accessories. The specific scheme is described through the following embodiments.

[0039] See also Figure 1 Through the adapter, the user can install the first light effect accessory on the lamp head of the movie light or on the second optical accessory 60, so as to achieve the connection and fixation between the first light effect accessory and the lamp head or the connection between the first light effect accessory and the second light effect accessory 60. This embodiment takes the installation of the adapter on the light effect accessory as an example. For the convenience of explanation, the light effect accessory is still referred to as the second light effect accessory 60.

[0040] It should be noted that the light effect accessory can be any device that can change the color of the light source, the propagation path of the light, the illumination range, the brightness or softness, etc. of the movie light. The first light effect accessory and the second light effect accessory 60 can be the same type of light effect accessories or different types of light effect accessories. The selection and combination can be based on the actual needs of the user, and there is no limitation here.

[0041] See also Figure 2 and Figure 3 The transfer device of this embodiment includes a cover plate 10, a turntable 20 and a plurality of sliders 30.

[0042] The cover plate 10 is fixed on the second light effect attachment 60. Figure 4 Combined with Figure 3 In some embodiments, the cover plate 10 includes a plate body 11. The plate body 11 is provided with a plurality of through holes 111. The plurality of through holes 111 are arranged at intervals along the circumference of the cover plate 10. Accordingly, the second light effect attachment 60 is provided with a plurality of receiving holes. The connecting member 50 passes through the through holes 111 and the receiving holes so that the cover plate 10 is fixed to the second light effect attachment 60.

[0043] This arrangement can stably connect the cover plate 10 to the second light effect accessory 60 to avoid the cover plate 10 from falling off, and can prevent the cover plate 10 from shifting along the axis direction of the second light effect accessory 60 , thereby ensuring the stability of the cover plate 10 relative to the second light effect accessory 60 .

[0044] See also Figure 5 and Figure 6 The cover plate 10 is annular in shape as a whole, and an interface 112 is formed inside the cover plate 10 . A receiving groove 12 is concavely formed on one side surface of the cover plate 10 , and the receiving groove 12 is used to accommodate the turntable 20 .

[0045] Specifically, the cover plate 10 includes an inner peripheral wall 13 and an outer peripheral wall 14. The plate body 11 is annular, and the inner peripheral wall 13 and the outer peripheral wall 14 are both circular, and the inner peripheral wall 13 and the outer peripheral wall 14 are respectively connected to the inner and outer sides of the plate body 11. The inner peripheral wall 13, the plate body 11 and the outer peripheral wall 14 together enclose a receiving groove 12 for receiving the turntable 20.

[0046] In the radial direction of the cover plate 10 , the groove wall of the receiving groove 12 is provided with a convex edge 121 . Specifically, the side of the inner peripheral wall 13 facing the outer peripheral wall 14 and the side of the outer peripheral wall 14 facing the inner peripheral wall 13 are both provided with a convex edge 121 .

[0047] The distance between the convex edge 121 and the end of the inner peripheral wall 13 or the outer peripheral wall 14 may be greater than or equal to the thickness of the turntable 20. When the turntable 20 is received in the receiving groove 12, one side of the turntable 20 contacts the convex edge 121, and the other side of the turntable 20 contacts the end surface of the second light effect attachment 60.

[0048] The protruding edge 121 can limit the swinging of the rotating disk 20 in the receiving groove 12, which helps to enhance the stability of the adapter.

[0049] In some embodiments, in the axial direction of the cover plate 10, one end of the peripheral wall 14 away from the plate body 11 extends to form an extension wall 141. When the cover plate 10 is mounted on the second light effect attachment 60, the inner side of the extension wall 141 is close to the outer side wall of the second light effect attachment 60, or directly contacts the outer side wall of the second light effect attachment 60.

[0050] The extension wall 141 can effectively prevent foreign matter such as dust from entering between the turntable 20 and the second light effect attachment 60 and affecting the rotation of the turntable 20 , thereby ensuring the smooth operation of the adapter device.

[0051] In some embodiments of the present application, the cover plate 10 further includes a flange 15 , and the flange 15 is disposed on the inner peripheral wall 13 of the cover plate 10 corresponding to the interface 112 .

[0052] The flange 15 extends in a direction away from the plate body 11 and is used to connect with the second light effect accessory 60 to further fix the cover plate 10 on the second light effect accessory 60 to prevent the cover plate 10 from being displaced in an axial direction perpendicular to the second light effect accessory 60, thereby further ensuring the stability of the cover plate 10 relative to the second light effect accessory 60.

[0053] Specifically, a groove is concavely provided on the end of the second light effect attachment 60. The flange 15 can be received in the groove. The arrangement of the flange 15 and the groove provides a positioning connection for the cover plate 10 to be installed on the second light effect attachment 60, which helps to achieve the fixation of the cover plate 10 and the second light effect attachment 60, and facilitates the user to quickly dock and connect the cover plate 10 and the second light effect attachment 60.

[0054] Continue to see Figure 5 The cover plate 10 further includes at least one reinforcing rib 16. The reinforcing rib 16 is disposed at the bottom of the receiving groove 12. Each reinforcing rib extends along the radial direction of the cover plate 10 to enhance the structural strength of the cover plate 10.

[0055] In some embodiments, a plurality of reinforcing ribs 16 may be provided. The plurality of reinforcing ribs 16 are arranged at intervals along the circumference of the plate body 11 to further enhance the structural strength of the cover plate 10 .

[0056] See also Figure 7 Combined with Figure 3 The turntable 20 is rotatably disposed on the cover plate 10. As mentioned above, the cover plate 10 is mounted on the second light effect attachment 60 through the connecting member 50. To facilitate the rotation of the turntable 20, a plurality of avoidance grooves 21 are provided on the turntable 20. The avoidance grooves 21 are used to avoid the connecting member 50 to prevent the connecting member 50 from interfering with the rotation of the turntable 20.

[0057] Specifically, the turntable 20 includes a disk body 22. The avoidance grooves 21 are arranged at intervals along the circumference of the disk body 22. The avoidance grooves 21 correspond to the through holes 111. The connecting member 50 passes through the through holes 111 on the cover plate 10, the avoidance grooves 21 on the turntable 20, and the receiving holes on the second light effect attachment 60 in sequence, so that the cover plate 10 is fixed to the second light effect attachment 60. Each avoidance groove 21 extends along the circumferential trajectory of the turntable 20. When the turntable 20 rotates, the connecting member 50 is equivalent to moving in the avoidance groove 21.

[0058] The turntable 20 further includes an operating portion 23 , which is protruding from the outer circumference of the turntable body 22 and is operable by a user to rotate the turntable 20 .

[0059] Correspondingly, a notch 17 is provided on the peripheral wall 14 of the cover plate 10. The extending direction of the notch 17 is the same as the circumferential direction of the turntable 20. The operating portion 23 passes through the notch 17 and is located outside the peripheral wall 14, so as to facilitate user operation.

[0060] The turntable 20 is also provided with a plurality of guide grooves 24, which are arranged at intervals along the circumference of the turntable 20. The extension track of each guide groove 24 forms an angle with the circumferential track of the turntable 20.

[0061] The number of the sliders 30 is consistent with the number of the guide slots 24. Each slider 30 is connected to the turntable 20. And through the guide slots 24 on the turntable 20, each slider 30 can move relative to the cover plate 10 along the radial direction of the cover plate 10.

[0062] Specifically, see Figure 2 and Figure 6 A plurality of sliders 30 are arranged at intervals along the circumference of the cover plate 10. Each slider 30 includes a main body 31 and a guide column 32.

[0063] The main body 31 is clamped on the cover plate 10. Specifically, a plurality of notches 18 are provided on the plate body 11 of the cover plate 10. Each slider 30 is installed in a notch 18 correspondingly.

[0064] In some embodiments of the present application, the outer contour of the main body 31 is trapezoidal. The outline of the notch 18 is trapezoidal to fit the main body 31, so as to achieve stable installation of the slider 30 on the cover plate 10 and prevent the main body 31 from falling off the cover plate 10.

[0065] Further, the main body 31 is trapezoidal, and includes a large end 311 and a small end 312 , and the large end 311 is arranged opposite to the small end 312 . The large end 311 is arranged close to the turntable 20 .

[0066] The trapezoidal outer contour of the main body 31 can ensure the guiding property of the slider 30 during movement, and effectively ensure that the slider 30 can move along the radial direction of the cover plate 10 .

[0067] One end of the guide column 32 is connected to the main body 31, and the other end is at least partially inserted into the guide groove 24. Specifically, the notch 18 is connected to the guide groove 24. The end of the guide column 32 can pass through the notch 18 in the axial direction of the cover plate 10 and be accommodated in the guide groove 24.

[0068] When the turntable 20 rotates, the guide post 32 can move in the guide slot 24. Specifically, when the turntable 20 rotates, the guide slot 24 rotates with the disk body 22, and the slot wall of the guide slot 24 abuts against the guide post 32, so that the guide post 32 moves along the extension track of the guide slot 24.

[0069] The movement of the guide post 32 in the guide groove 24 can enable the slider 30 to move in a direction away from or close to the center of the interface 112. Specifically, an angle is formed between the extension track of the guide groove 24 and the circumferential track of the turntable 20. Due to the setting of the angle, the guide post 32 can be displaced relative to the cover plate 10 in the radial direction of the cover plate 10, and drive the main body 31 connected to the guide post 32 to move in the radial direction of the cover plate 10.

[0070] The end of the slider 30 protrudes from the inner wall of the cover plate 10 corresponding to the interface 112 along the radial direction of the cover plate 10. Equivalently, the end of each body 31 protrudes from the side of the inner peripheral wall 13 on the cover plate 10 away from the outer peripheral wall 14.

[0071] When the turntable 20 rotates, the guide column 32 of the slider 30 slides along the extension direction of the guide groove 24, and the ends of the main bodies 31 of the multiple sliders 30 can enclose to form assembly openings 33 of different calibers. The assembly openings 33 of different calibers can be adapted to connect first light effect accessories of different models.

[0072] It should be noted that the larger the angle, the larger the movable distance of the slider 30 in the radial direction of the cover plate 10, and the more models of first light effect accessories that the adapter can adapt to connect. The specific size can be set according to actual needs and is not limited here.

[0073] In some embodiments, the main body 31 and the guide column 32 may be detachably connected to facilitate the disassembly and assembly between the slider and the cover plate. For example, they may be connected by threads, that is, a threaded hole is provided on the main body 31, and an outer thread is provided on the outer periphery of the guide column 32, so that the guide column 32 can be installed on the main body 31. The operation steps for installing the slider 30 on the cover plate 10 may be to first install the main body 31 on the notch 18, and then screw the guide column 32 on the main body 31.

[0074] In other embodiments, the main body 31 and the guide column 32 can also be connected by snap-fit ​​connections, fastener connections, etc., and there is no limitation here. As long as the main body 31 is connected to the guide column 32 and the main body 31 can be installed on the cover plate 10, the end of the guide column 32 can be accommodated in the guide column 32.

[0075] See also Figure 8 Combined with Figure 3 , Figure 5 The adapter device further includes a stopper 40. The stopper 40 can be used to fix the turntable 20 to position and fix the sliders 30, so that the multiple sliders 30 are kept at the positions where the assembly openings 33 of corresponding calibers are enclosed, thereby firmly connecting the first light effect attachment.

[0076] Specifically, the limiting member 40 includes a connecting end 41 connected to the cover plate 10 , and an abutting end 42 arranged opposite to the connecting end 41 , and the abutting end 42 abuts against the turntable 20 to fix the turntable 20 .

[0077] In some embodiments of the present application, the limiting member 40 includes a receiving shell 43 , an elastic portion (not shown) and a ball 44 .

[0078] One end of the receiving shell 43 is a connection end 41 connected to the cover plate 10. In some embodiments, a limiting groove 19 is provided on one side of the plate body 11 of the cover plate 10 facing the turntable 20. The receiving shell 43 is at least partially clamped in the limiting groove 19.

[0079] The other end of the receiving shell 43 is provided with an opening, a part of the ball 44 and the elastic part are located in the opening, and the other part of the ball 44 is the abutment end 42, which protrudes out of the opening and abuts against the rotating disk 20. It can be understood that one end of the elastic part abuts against the receiving shell 43, and the other end abuts against the ball 44.

[0080] It should be noted that when the adapter is installed on the second light effect attachment 60 , the elastic portion is in an elastically compressed state.

[0081] When the turntable 20 rotates, rolling friction occurs between the ball 44 and the turntable 20, so that the ball 44 does not have a significant impact on the rotation of the turntable. The elastic part can abut the ball 44 when the turntable 20 stops rotating, so that the ball 44 abuts against the turntable 20, so that the turntable 20 is closely attached to the end surface of the second light effect attachment 60, thereby ensuring the fixation of the turntable 20.

[0082] See Figure 7 and Figure 8 At least one latching groove 25 is provided on the turntable 20 , and a plurality of latching grooves 25 are arranged at intervals along the circumference of the turntable 20 .

[0083] The end of the stopper 40 can be clamped in the clamping groove 25 to further fix the turntable 20. Specifically, the abutting end 42 of the stopper 40, that is, the part of the ball 44 protruding out of the opening, can be accommodated in the clamping groove 25.

[0084] When the turntable 20 rotates, the groove wall of the locking groove 25 abuts against the ball 44, causing the elastic portion to be elastically compressed, and the ball 44 moves away from the turntable 20, so that the ball 44 can move out of the locking groove 25 and abut against the surface of the disk body 22.

[0085] In some embodiments of the present application, a plurality of limit members 40 may be provided. The plurality of limit members 40 are arranged at intervals along the circumference of the plate body 11. The plurality of limit members 40 work together to ensure the stability of the rotation of the turntable 20 and effectively enhance the fixing effect of the turntable 20.

[0086] There may be more than one positioning slot 25 . The number of positioning slots 25 may be greater than the number of limiting slots 19 , so that the positioning slots 25 can lock the limiting member 40 to keep the assembly openings 33 of different diameters formed by the multiple sliders 30 at the corresponding diameter.

[0087] For the adapter device of the present application, by setting the structure of the cover plate 10, the slider 30 and the turntable 20, the user only needs to rotate the turntable 20 to slide the slider 30 along the extension direction of the guide groove 24 on the turntable 20, so that the slider 30 moves in the direction away from or close to the center of the interface 112, so that the ends of multiple sliders 30 can enclose and form assembly ports 33 of different calibers, and adapt to connect different models of first light effect accessories. The user can form assembly ports of different calibers by adjusting the adapter device itself, without carrying multiple adapter rings of different calibers, which is easy to carry and use. The adapter device also includes a limiter 40. When the turntable 20 loses external force and stops rotating, the limiter 40 can fix the turntable 20 to position and fix the slider 30, so that the multiple sliders 30 remain at the position where they enclose the assembly ports 33 of corresponding calibers, thereby firmly connecting the first light effect accessory.

[0088] The above embodiments are merely exemplary descriptions of the structures. The structures in the embodiments are not fixed combination structures. In the absence of structural conflicts, the structures in multiple embodiments can be used in any combination.

[0089] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A switching device for mounting a first light effect accessory on a lamp head or a second light effect accessory of a movie light, characterized in that: The switching device comprises: A cover plate, wherein an interface is provided on the cover plate; A turntable, the turntable is rotatably disposed on the cover plate, a plurality of guide grooves are disposed on the turntable, and the plurality of guide grooves are spaced apart along the circumference of the turntable; an angle is formed between an extension track of each guide groove and a circumferential track of the turntable; A plurality of sliders are arranged at intervals along the circumference of the cover plate, and each slider corresponds to a guide groove; the slider can move relative to the cover plate along the radial direction of the cover plate, and the end of the slider protrudes from the inner wall of the cover plate corresponding to the interface along the radial direction of the cover plate; each slider is connected to the turntable, and the rotation of the turntable can make the slider slide along the extension direction of the guide groove, so that the end of the slider moves in a direction away from or close to the center of the interface, so that the ends of the plurality of sliders can enclose to form assembly ports of different calibers, so as to adapt to and connect different models of the first light effect accessories.

2. The switching device according to claim 1, characterized in that: Each of the sliders includes a main body and a guide column arranged on the main body, and the guide column is at least partially inserted into the guide groove; the rotation of the turntable can make the groove wall of the guide groove abut against the guide column, so that the guide column moves along the extension trajectory of the guide groove, so that the main body moves in a direction away from or close to the center of the interface.

3. The switching device according to claim 2, characterized in that: The outer contour of the main body is trapezoidal; the main body includes a large head end and a small head end, the large head end and the small head end are arranged opposite to each other, and the large head end is close to the turntable; the cover plate is provided with a notch on which the main body can be clamped, so that the slider can be installed on the cover plate.

4. The switching device according to claim 2, characterized in that: The transfer device includes a limiting member, and the limiting member includes a connecting end connected to the cover plate, and an abutting end arranged opposite to the connecting end, and the abutting end abuts against the turntable to fix the turntable.

5. The switching device according to claim 4, characterized in that: The limiting member includes a receiving shell, an elastic portion and a ball, one end of the receiving shell is a connecting end connected to the cover plate, the other end of the receiving shell is provided with an opening, a part of the ball and the elastic portion are located in the opening, and the other part of the ball is the abutting end, which protrudes out of the opening and abuts against the turntable.

6. The switching device according to claim 4, characterized in that: At least one locking groove is provided on the rotating disk, and the end of the limiting member can be locked in the locking groove to fix the rotating disk.

7. The switching device according to claim 1, characterized in that: The turntable includes a turntable body and an operating portion. The operating portion is convexly arranged on the outer circumference of the turntable body. The operating portion is operated by a user to rotate the turntable.

8. The switching device according to claim 1, characterized in that: The cover plate is provided with a plurality of through holes, and the turntable is correspondingly provided with a plurality of avoidance grooves, and the avoidance grooves extend along the circumferential trajectory of the turntable; the connecting member penetrates the through holes and the avoidance grooves at the same time and is connected to the lamp holder or the second light effect accessory.

9. The switching device according to claim 1, characterized in that: A receiving groove is recessed on one side of the cover plate, and the turntable is received in the receiving groove; the cover plate also includes at least one reinforcing rib, each of which is arranged at the bottom of the receiving groove, and each of which extends along the radial direction of the cover plate.

10. The switching device according to claim 1, characterized in that: The cover plate is provided with a flange on the inner peripheral wall corresponding to the interface, and the flange extends in a direction away from the turntable. The flange is used to connect with the lamp holder or the second light effect accessory to fix the cover plate to the lamp holder or the second light effect accessory.

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