Clamping mechanism, switching disc and lighting system

Abstract

The utility model relates to a clamping mechanism, an adapter plate and a lighting system, and belongs to the technical field of photography and camera shooting equipment. The clamping mechanism comprises a panel, a positioning ring and a glass bead assembly. The positioning ring is arranged on the panel, and a positioning cavity is defined by the positioning ring and the panel; a positioning groove is formed in the inner side wall of the positioning ring. When the chuck body is contained in the positioning cavity, the first positioning protruding block is clamped into the positioning groove. The glass bead assembly comprises an abutting piece and an elastic piece, and the abutting piece is movably arranged on the panel and extends into the positioning groove; the abutting piece can move back and forth in the axis direction of the positioning ring so as to stretch out or retract to the panel. The elastic piece is arranged in the panel and is connected with the abutting piece; the elastic piece can elastically stretch out and draw back to extrude the abutting piece to stretch out of the panel, so that the abutting piece can abut against the first positioning protruding block, the first positioning protruding block of the chuck is tightly pressed in the positioning groove, then the lighting effect accessory cannot shake on the photography and video recording lamp, and the overall imaging effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic and video equipment, in particular to a clamping mechanism, a switching plate and a lighting system. Background Art

[0002] In existing photography and videography scenes, in order to achieve different lighting effects, different lighting effect accessories are generally installed on photography and videography lights according to lighting effect requirements. In order to quickly install and replace the lighting effect accessories, the lighting effect accessories and the photography and videography lights are generally installed and fixed through a snap-on mechanism.

[0003] The traditional method is to set a bayonet on the photographic light, and a chuck in the light effect accessory, and mainly clamp the chuck in the bayonet by interference fit to achieve assembly between the two.

[0004] However, since the chuck and the bayonet are generally made of plastic or metal, they are prone to deformation after long-term use; or in severe outdoor conditions, due to the different shrinkage rates of different materials, the gap between the bayonet and the chuck becomes larger, which can easily lead to the assembly between the two becoming unstable, and the light effect accessory will shake on the photographic light, affecting the imaging effect of the light effect accessory. Utility Model Content

[0005] The utility model aims to solve the technical problem that the assembly between the traditional chuck and the chuck becomes loose due to the enlarged gap between the two.

[0006] In order to solve the above technical problems, the present application provides a clamping mechanism for connecting with a chuck, wherein the chuck includes a chuck body and a first positioning protrusion arranged on the outer side wall of the chuck body; the clamping mechanism includes: a panel, on which a light-transmitting hole is opened, and the light-transmitting hole is used for the light emitted by a photographic light to pass through; a positioning ring, which is arranged on the panel, and the positioning ring and the panel are enclosed to form a positioning cavity; a positioning groove is opened on the inner side wall of the positioning ring, and when the chuck body is accommodated in the positioning cavity, the first positioning protrusion is clamped into the positioning groove; a glass bead assembly, which includes an abutment member and an elastic member , the abutment is movably arranged on the panel and can extend into the positioning groove; the abutment can reciprocate along the axial direction of the positioning ring to extend or retract to the panel; the elastic member is arranged in the panel and connected to the abutment; the elastic member can elastically expand and contract to squeeze the abutment to extend out of the panel; wherein, when the first positioning protrusion is inserted into the positioning groove, the first positioning protrusion squeezes the abutment to make the abutment retract toward the panel and compress the elastic member, thereby pressing the first positioning protrusion of the chuck tightly into the positioning groove.

[0007] Optionally, the glass bead assembly also includes a accommodating shell; a accommodating cavity with an opening at one end is provided in the accommodating shell, the opening of the accommodating cavity is located in the panel, the abutment member is arranged at the opening of the accommodating cavity and can move along the axial direction of the accommodating cavity; the elastic member is located in the accommodating cavity, and the two ends of the elastic member are respectively connected to the bottom wall of the accommodating cavity and the abutment member.

[0008] Optionally, the abutment member is a spherical structure.

[0009] Optionally, the diameter of the abutment member is greater than the diameter of the opening of the accommodating cavity, and the abutment member can partially extend out of the opening of the accommodating cavity.

[0010] Optionally, the positioning groove includes an opening portion and a snap-fit ​​portion that are connected to each other; the opening portion extends from the front end face of the positioning ring toward the panel, and the first positioning protrusion can be docked with the opening portion to allow the chuck body to enter the positioning cavity; the snap-fit ​​portion is connected to the bottom of the opening portion and extends along the circumference of the positioning ring; the first positioning protrusion can be accommodated and snap-fitted in the snap-fit ​​portion.

[0011] Optionally, the clamping mechanism also includes a locking piece; the locking piece is movably arranged on the positioning ring, and the locking piece can move radially inward along the positioning ring to extend into the opening of the positioning groove and abut the first positioning protrusion located in the clamping portion; so as to limit the rotation of the chuck on the panel.

[0012] The present application also provides an adapter plate, comprising: the clamping mechanism as described above, which is used to connect with the clamping plate; a bayonet portion, which includes a clamping ring and a second positioning protrusion; the clamping ring is arranged on the side of the panel of the clamping mechanism away from the positioning ring, the clamping ring protrudes toward the side away from the positioning ring, the second positioning protrusion is arranged on the outer side wall of the clamping ring, and the second positioning protrusion is used to connect with the clamping mechanism on the photographic light.

[0013] Optionally, the second positioning protrusion on the bayonet portion is different in size and / or distribution from the first positioning protrusion on the chuck.

[0014] The present application also provides a lighting system, including: a photographic or video light, whose end face is provided with the above-mentioned snap-in mechanism; a light effect accessory, whose side facing the photographic or video light is provided with a chuck, and the chuck can be connected to the snap-in mechanism on the photographic or video light to fix the light effect accessory to the photographic or video light.

[0015] The present application also provides another lighting system, including: a photographic or video light, whose end face is provided with the above-mentioned snap-in mechanism; the above-mentioned adapter plate, the bayonet portion on the adapter plate can be docked with the snap-in mechanism on the photographic or video light to fix the adapter plate to the photographic or video light; a light effect accessory, whose side facing the photographic or video light is provided with a snap-in mechanism, and the snap-in mechanism can be connected with the snap-in mechanism on the adapter plate to fix the light effect accessory to the adapter plate.

[0016] It can be seen from the above technical solution that the beneficial effects of the utility model are:

[0017] The present application provides a clamping mechanism, a transfer plate and a lighting system, wherein the clamping mechanism includes a panel, a positioning ring arranged on the panel and a glass bead assembly. A positioning groove is provided on the inner side wall of the positioning ring, and the first positioning protrusion on the chuck can be inserted into the positioning groove. The abutment of the glass bead assembly is arranged on the panel and can extend into the positioning groove. The abutment can reciprocate along the axial direction of the positioning ring, and the elastic member of the glass bead assembly is also arranged in the panel and connected to the abutment. The elastic member can elastically expand and contract to squeeze the abutment out of the panel.

[0018] When the chuck is not subjected to external force, the elastic member can elastically stretch and squeeze the abutment member out of the side wall of the panel to extend into the positioning groove. At this time, the abutment member presses the first positioning protrusion to press the first positioning protrusion of the chuck tightly into the positioning groove, so that the chuck can be pressed by the abutment member at all times, the chuck and the clamping mechanism always maintain a firmly assembled state, and the light effect accessory will not shake on the photographic light, which greatly ensures the overall imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the exploded structure of the transfer plate and the chuck in this embodiment.

[0020] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure after the transfer plate and the chuck are connected.

[0021] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the transfer tray.

[0022] Figure 4 for Figure 3 Schematic diagram of the side cross-sectional structure of the transfer tray.

[0023] Figure 5 for Figure 3 Schematic diagram of the transfer tray structure from top view.

[0024] Figure 6 for Figure 3 Schematic diagram of the top view cross-section structure of the transfer tray.

[0025] Figure 7 for Figure 3 Schematic diagram of the transfer tray from above.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the glass bead assembly in the transfer plate.

[0027] Fig. 9 for Figure 8 Schematic cross-sectional view of the medium glass bead assembly.

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

[0029] 100, adapter plate; 110, snap-fit ​​mechanism; 111, panel; 1111, light-transmitting hole; 112, positioning ring; 113, positioning groove; 1131, opening; 1132, snap-fitting portion; 114, locking member; 115, abutting member; 116, elastic member; 117, accommodating shell; 120, snap-fit ​​portion; 121, snap ring; 122, second positioning protrusion; 200, chuck; 210, chuck body; 220, first positioning protrusion. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The chuck and the bayonet on the light effect attachment of the existing photography and video lights are prone to deformation after long-term use; or in a severe cold outdoor environment, due to the different shrinkage rates of different materials, the gap between the bayonet and the chuck becomes larger, which easily leads to the assembly between the two becoming unstable, and then the light effect attachment shakes on the photography and video lights, which affects the imaging effect of the light effect attachment. This embodiment provides a pre-tightened clamping mechanism, an adapter plate and a lighting system.

[0034] See also Figures 1 to 9 This embodiment provides a transfer plate 100, which may include a clamping mechanism 110 and a clamping portion 120 connected to the clamping mechanism 110. The clamping mechanism 110 on the transfer plate 100 may be connected to a chuck 200, so that the chuck 200 can be stably connected to the clamping mechanism 110.

[0035] It should be understood that the snap-on mechanism 110 in this embodiment can be not only provided on the adapter plate 100 , but can also be provided on a photographic or video light or on a light effect accessory to connect with the chuck 200 in the form of a snap-on.

[0036] See also Figure 1 In some embodiments, the chuck 200 includes a chuck body 210 and a first positioning protrusion 220. The chuck body 210 may be annular, and its interior may be configured to form a light path channel for light to pass through. The chuck body 210 may be fixed to the light effect attachment to be connected to the clamping mechanism 110 on the photographic light. Of course, the chuck body 210 may also be fixed to the photographic light to be connected to the clamping mechanism 110 on the light effect attachment.

[0037] See also Figure 1 The first positioning protrusion 220 of the chuck 200 can be arranged on the outer side wall of the chuck body 210. The first positioning protrusion 220 can be a rectangular or cube-shaped protrusion. There can be a plurality of first positioning protrusions 220, and the plurality of first positioning protrusions 220 can be evenly spaced along the circumferential direction of the outer side wall of the chuck body 210.

[0038] In some other embodiments, only one first positioning protrusion 220 may be provided, and the chuck body 210 and the first positioning protrusion 220 may also be other structures as long as they can achieve rotational engagement with the engaging mechanism 110 .

[0039] See also Figures 2 to 4 In some embodiments, the snap-fit ​​mechanism 110 may include a panel 111 , a positioning ring 112 , and an abutment member 115 .

[0040] The panel 111 is provided with a light-transmitting hole 1111 , and the light-transmitting hole 1111 can be aligned with the light source in the photographic light so that the light emitted by the photographic light can pass through the panel 111 .

[0041] The positioning ring 112 is disposed on the panel 111 and is disposed around the light-transmitting hole 1111 on the panel 111. The positioning ring 112 protrudes from the side wall of the panel 111 so that the positioning ring 112 and the panel 111 enclose a positioning cavity. The positioning cavity can accommodate the chuck body 210. A positioning groove 113 is also provided on the inner side wall of the positioning cavity of the positioning ring 112, and the positioning groove 113 can be used to accommodate the first positioning protrusion 220 on the chuck body 210.

[0042] When the chuck body 210 is accommodated in the positioning cavity, the first positioning protrusion 220 on the chuck 200 can be engaged in the positioning groove 113 to achieve the mutual docking of the chuck 200 and the engaging mechanism 110 .

[0043] It should be understood that the size of the positioning cavity in this embodiment can match the size of the chuck body 210, and the size and number of the positioning grooves 113 can match the size and number of the first positioning protrusions 220 on the chuck 200, so that the chuck 200 can be docked with the clamping mechanism 110.

[0044] See also Figure 3 and Figure 4 In some embodiments, the positioning groove 113 on the positioning ring 112 may include an opening portion 1131 and a locking portion 1132 .

[0045] The opening portion 1131 of the positioning groove 113 extends from the front end face of the positioning ring 112 toward the panel 111 and extends to connect with the side wall of the panel 111, so that the first positioning protrusion 220 on the chuck 200 can dock with the opening portion 1131 and the chuck body 210 can enter the positioning cavity of the clamping mechanism 110.

[0046] The engaging portion 1132 of the positioning groove 113 is connected to the bottom of the opening 1131 near the panel 111, and the engaging portion 1132 extends along the circumferential direction of the positioning ring 112. When there are multiple positioning grooves 113, the engaging portions 1132 on the multiple positioning grooves 113 can extend around the same circumferential direction, so that the multiple first positioning protrusions 220 on the chuck 200 can rotate from the opening 1131 into the engaging portions 1132. The front side wall of the engaging portion 1132 away from the panel 111 can abut against the first positioning protrusion 220 to prevent the chuck 200 from being separated from the clamping mechanism 110 along the axial direction.

[0047] See also Figure 4 and Figure 5In some embodiments, the clamping mechanism 110 further includes a locking member 114. The locking member 114 is movably driven to penetrate the positioning ring 112 and can move radially along the positioning ring 112. One end of the locking member 114 facing the center of the positioning ring 112 can extend into the opening 1131 of the positioning ring 112; one end of the locking member 114 away from the center of the positioning ring 112 extends out of the outer wall of the positioning ring 112 for user holding. The user can achieve radial movement of the locking member 114 by pushing and pulling the end of the locking member 114 extending out of the positioning ring 112.

[0048] When the locking piece 114 moves radially inward along the positioning ring 112 to extend into the opening portion 1131 of the positioning groove 113, the portion of the locking piece 114 extending into the opening portion 1131 can be tightly pressed against the first positioning protrusion 220 located in the locking portion 1132; so as to limit the first positioning protrusion 220 on the chuck 200 in the locking portion 1132, thereby limiting the relative rotation of the chuck 200 and the locking mechanism 110, which can effectively prevent the chuck 200 from being abnormally separated from the locking mechanism 110.

[0049] When the locking member 114 moves radially outwardly along the positioning ring 112 to exit the opening 1131 of the positioning groove 113, the locking member 114 releases the contact with the first positioning protrusion 220 in the engaging portion 1132. At this time, the chuck 200 can rotate along its own axis, so that the first positioning protrusion 220 of the chuck 200 moves from the engaging portion 1132 to the opening 1131. Finally, the chuck 200 is driven to move in a direction away from the engaging mechanism 110, so that the chuck 200 and the engaging mechanism 110 can be separated from each other.

[0050] It is conceivable that one locking member 114 can be provided, which can be provided in the opening 1131 of any positioning slot 113. Of course, multiple locking members 114 can also be provided, that is, a movable locking member 114 is provided at the opening 1131 of each positioning slot 113 to enhance the locking effect.

[0051] See also Figure 2 , Figure 4 , Figure 8 and Fig. 9 In some embodiments, a glass bead assembly is provided on the clamping mechanism 110. The glass bead assembly can be provided on the panel 111 of the clamping mechanism 110, and the glass bead assembly can press the chuck 200 installed on the clamping mechanism 110 to prevent the chuck 200 from shaking.

[0052] See also Figure 2 and Fig. 9In some embodiments, the glass bead assembly may include an abutment member 115. The abutment member 115 may be movably disposed on the panel 111 and may extend into the positioning groove 113. The abutment member 115 may reciprocate along the axial direction of the positioning ring 112 to extend or retract to the panel 111.

[0053] When the abutting member 115 extends out of the panel 111 and into the interior of the positioning groove 113, the abutting member 115 can press the first positioning protrusion 220 located in the engaging portion 1132. The first positioning protrusion 220 of the chuck 200 is pressed tightly in the engaging portion 1132 of the positioning groove 113, thereby locking the first positioning protrusion 220 on the chuck 200 in the engaging portion 1132, so that the clamping mechanism 110 and the chuck 200 are fixedly connected without relative shaking.

[0054] In some embodiments, the glass bead assembly further includes an elastic member 116. The elastic member 116 can be disposed in the panel 111 and connected to the abutment member 115. When the elastic member 116 elastically stretches, the abutment member 115 can be driven to extend out of the panel 111 to press the first positioning protrusion 220 in the engaging portion 1132.

[0055] Specifically, the elastic member 116 may be a device that can rebound under pressure, such as a compression spring or elastic rubber, and the elastic member 116 is located between the panel 111 and the abutment member 115. When the first positioning protrusion 220 moves from the opening 1131 of the positioning groove 113 to the engaging portion 1132, the first positioning protrusion 220 may press the abutment member 115, so that the abutment member 115 moves inward to retract into the panel 111. At this time, the elastic member 116 is compressed by force and stores elastic potential energy.

[0056] When the external force is released, the elastic member 116 recovers its elastic deformation, and pushes the abutting member 115 out of the panel 111 and into the engaging portion 1132. At this time, the abutting member 115 presses the first positioning protrusion 220 against the side wall away from the panel 111, so that the first positioning protrusion 220 is pressed tightly in the engaging portion 1132, so that the first positioning protrusion 220 cannot shake in the engaging portion 1132, thereby effectively improving the connection stability between the chuck 200 and the engaging mechanism 110.

[0057] It is conceivable that in some other embodiments, the elastic member 116 may not be used to drive the movement of the abutment member 115, but a mechanical driving structure may be directly used to achieve the movement of the abutment member 115 to retract into the panel 111 or extend out of the panel 111. For example, a small hydraulic rod, a driving motor or other device may be used to automatically drive the movement of the abutment member 115. As long as the movement of the abutment member 115 can be achieved to press the first positioning protrusion 220, it will be sufficient.

[0058] See also Figure 8and Fig. 9 In some embodiments, the glass bead assembly may further include a housing 117 for fixing the elastic member 116 and the abutment member 115. The housing 117 is disposed in the panel 111, and a housing cavity with an opening at one end is disposed in the housing 117, and the opening of the housing cavity is located in the panel 111. The abutment member 115 is disposed at the opening of the housing cavity and can move along the axial direction of the housing cavity. The elastic member 116 is located in the housing cavity, and the two ends of the elastic member 116 are respectively connected to the bottom wall of the housing cavity and the abutment member 115, so that the abutment member 115 can partially extend out of the housing cavity of the housing 117.

[0059] Specifically, a mounting hole may be provided in the panel 111, and when the accommodating shell 117 may be provided in the mounting hole, one end of the accommodating shell 117 provided with an opening is flush with the side surface of the panel 111. The abutting member 115 may be movably provided in the accommodating cavity of the accommodating shell 117, and may partially protrude from the accommodating cavity of the accommodating shell 117. The elastic member 116 is located between the bottom wall of the accommodating shell 117 and the abutting member 115, so that the abutting member 115 partially protrudes from the accommodating cavity without being subjected to external force, so as to be able to abut against the first positioning protrusion 220.

[0060] It is conceivable that in some other embodiments, the abutment member 115 and the elastic member 116 may be directly disposed in the mounting hole of the panel 111 .

[0061] See also Fig. 9 In some embodiments, the abutment member 115 may be a spherical ball structure. The abutment member 115 is spherical, which is more flexible and can prevent the first positioning protrusion 220 from getting stuck when moving between the opening 1131 and the engaging portion 1132 .

[0062] See also Fig. 9 In some embodiments, the diameter of the abutment member 115 may be slightly larger than the diameter of the opening of the accommodating cavity, so that the abutment member 115 can partially extend out of the opening of the accommodating cavity and will not be separated from the accommodating shell 117 under the pressure of the elastic member 116; this can effectively improve the stability of the overall structure of the glass bead assembly.

[0063] It is conceivable that in some other examples, the end of the abutment member 115 located in the accommodating shell 117 can be set to be cylindrical; the end of the abutment member 115 extending out of the accommodating shell 117 can be set to be hemispherical. The diameter of the cylindrical part can be larger than the opening diameter of the accommodating cavity; the diameter of the hemispherical part can be smaller than the opening diameter of the accommodating cavity, so that the abutment member 115 can partially extend out of the accommodating shell 117 and will not be separated from the accommodating shell 117.

[0064] See also Figure 2 and Figure 4In this embodiment, the bayonet portion 120 on the adapter plate 100 includes a snap ring 121 and a second positioning protrusion 122 .

[0065] The snap ring 121 is disposed on a side of the panel 111 of the snap mechanism 110 away from the positioning ring 112, and the snap ring 121 protrudes toward the side away from the positioning ring 112. The second positioning protrusion 122 is disposed on the outer side wall of the snap ring 121, and the second positioning protrusion 122 can be connected to the positioning groove 113 on another snap mechanism 110, so that the adapter plate 100 can achieve the conversion between the light effect accessory and the photographic light.

[0066] In some embodiments, Figure 2 The second positioning protrusion 122 on the bayonet portion 120 is Figure 1 Specifically, the shape, size, number and / or distribution of the second positioning protrusions 122 on the bayonet portion 120 can be different from the first positioning protrusions 220 on the chuck 200, so that the adapter plate 100 can transfer chucks 200 of different specifications to the clamping mechanism 110.

[0067] In some embodiments, a lighting system is also provided, which includes a photographic or video light and a lighting effect accessory.

[0068] A clamping mechanism 110 is provided on the end surface of the photographic light, and the clamping mechanism 110 can be formed integrally with the housing of the photographic light. A chuck 200 can be provided on the side of the light effect accessory facing the photographic light, and the chuck 200 can also be formed integrally with the housing of the light effect accessory. The chuck 200 on the light effect accessory can be connected with the clamping mechanism 110 on the photographic light to fix the light effect accessory to the photographic light. Then, the first positioning protrusion 220 on the chuck 200 is pressed by the glass bead assembly on the clamping mechanism 110, so that the light effect accessory will not shake when connected to the photographic light.

[0069] In some embodiments, another lighting system is provided, which includes a photographic or video light, an adapter plate 100 and a light effect accessory.

[0070] A clamping mechanism 110 is provided on the end surface of the photographic light, and the clamping mechanism 110 on the photographic light can be docked with the bayonet portion 120 on the adapter plate 100, so that the adapter plate 100 is fixed to the photographic light. A clamping disk 200 is provided on the side of the light effect accessory facing the photographic light, and the clamping disk 200 can be connected with the clamping mechanism 110 on the adapter plate 100, so as to fix the light effect accessory to the adapter plate 100, thereby realizing the transfer between the light effect accessory and the photographic light.

[0071] In addition, the clamping mechanism 110 on the photographic light can lock the clamping portion 120 on the adapter plate 100 to prevent the adapter plate 100 from shaking. The clamping mechanism 110 on the adapter plate 100 can lock the clamping plate 200 on the light effect accessory to prevent the light effect accessory from shaking, thereby achieving a stable connection between the light effect accessory and the photographic light, thereby ensuring the overall imaging effect of the light.

[0072] In summary, this embodiment provides a clamping mechanism 110, a chuck 200 and a lighting system, wherein the clamping mechanism 110 includes a panel 111, a positioning ring 112 disposed on the panel 111, an abutment member 115 and an elastic member 116. A positioning groove 113 is provided on the inner side wall of the positioning ring 112, and the first positioning protrusion 220 on the chuck 200 can be inserted into the positioning groove 113. The abutment member 115 is disposed on the panel 111 and is disposed toward the positioning groove 113; and the abutment member 115 can reciprocate along the axial direction of the positioning ring 112. When the abutment 115 extends out of the side wall of the panel 111 to the inside of the positioning groove 113 driven by the elastic member 116, the abutment 115 presses the first positioning protrusion 220 to press the first positioning protrusion 220 of the chuck 200 into the positioning groove 113, so that the chuck 200 can be pressed by the abutment 115 at all times, so that the chuck 200 and the clamping mechanism 110 can always maintain a firmly assembled state, and then the light effect accessory will not shake on the photographic light, which greatly guarantees the overall imaging effect.

[0073] 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 clamping mechanism, used for connecting with a chuck, the chuck comprising a chuck body and a first positioning protrusion arranged on the outer side wall of the chuck body; characterized in that: The clamping mechanism comprises: A panel having a light-transmitting hole formed thereon, wherein the light emitted by a photographic or video lamp passes through the light-transmitting hole; A positioning ring is arranged on the panel, and the positioning ring and the panel are combined to form a positioning cavity; a positioning groove is provided on the inner side wall of the positioning ring, and when the chuck body is accommodated in the positioning cavity, the first positioning protrusion is inserted into the positioning groove; A glass bead assembly, comprising an abutment member and an elastic member, wherein the abutment member is movably arranged on the panel and can extend into the positioning groove; the abutment member can reciprocate along the axial direction of the positioning ring to extend or retract to the panel; the elastic member is arranged in the panel and connected to the abutment member; the elastic member can elastically expand and contract to squeeze the abutment member out of the panel; When the first positioning protrusion is inserted into the positioning groove, the first positioning protrusion presses the abutment member to make the abutment member retract toward the panel and compress the elastic member, thereby pressing the first positioning protrusion of the chuck tightly into the positioning groove.

2. The clamping mechanism according to claim 1, characterized in that: The glass bead assembly also includes a accommodating shell; a accommodating cavity with an opening at one end is provided in the accommodating shell, the opening of the accommodating cavity is located in the panel, the abutment member is arranged at the opening of the accommodating cavity and can move along the axial direction of the accommodating cavity; the elastic member is located in the accommodating cavity, and the two ends of the elastic member are respectively connected to the bottom wall of the accommodating cavity and the abutment member.

3. The clamping mechanism according to claim 2, characterized in that: The abutment member is a spherical structure.

4. The clamping mechanism according to claim 3, characterized in that: The diameter of the abutment member is greater than the diameter of the opening of the accommodating cavity, and the abutment member can partially extend out of the opening of the accommodating cavity.

5. The clamping mechanism according to claim 1, characterized in that: The positioning groove includes an opening portion and a snap-fitting portion which are connected to each other; the opening portion extends from the front end surface of the positioning ring toward the panel, and the first positioning protrusion can be docked with the opening portion to allow the chuck body to enter the positioning cavity; the snap-fitting portion is connected to the bottom of the opening portion and extends along the circumference of the positioning ring; the first positioning protrusion can be accommodated and snap-fitted in the snap-fitting portion.

6. The clamping mechanism according to claim 5, characterized in that: The clamping mechanism also includes a locking piece; the locking piece is movably arranged on the positioning ring, and the locking piece can move radially inward along the positioning ring to extend into the opening of the positioning groove and abut the first positioning protrusion located in the clamping part to limit the rotation of the chuck on the panel.

7. A transfer plate, characterized in that: include: The clamping mechanism according to any one of claims 1 to 6, wherein the clamping mechanism is used to connect with a chuck; The bayonet portion includes a snap ring and a second positioning protrusion; the snap ring is arranged on the side of the panel of the snap mechanism away from the positioning ring, the snap ring protrudes toward the side away from the positioning ring, the second positioning protrusion is arranged on the outer side wall of the snap ring, and the second positioning protrusion is used to connect with the snap mechanism on the photographic or video light.

8. The adapter plate according to claim 7, characterized in that: The second positioning protrusions on the bayonet portion are different in size and / or distribution from the first positioning protrusions on the chuck.

9. A lighting system, characterized in that: include: A photographic light, wherein the end surface of the light is provided with a clamping mechanism as claimed in any one of claims 1 to 6; The light effect accessory has a chuck on the side facing the photographic light, and the chuck can be connected with the clamping mechanism on the photographic light to fix the light effect accessory to the photographic light.

10. A lighting system, characterized in that: include: A photographic light, wherein the end surface of the light is provided with a clamping mechanism as claimed in any one of claims 1 to 6; The adapter plate according to claim 7 or 8, wherein the bayonet portion on the adapter plate can be docked with the bayonet mechanism on the photographic light, so that the adapter plate is fixed to the photographic light; The light effect accessory has a chuck on the side facing the photographic light, and the chuck can be connected with the clamping mechanism on the adapter plate to fix the light effect accessory to the adapter plate.

Images