Fixing device for a light supplement lamp and tripod

CN224771449UActive Publication Date: 2026-09-18DONGGUAN KING POWER DIGITAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521874845.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2026-09-18
Estimated Expiration
2035-09-01

AI Technical Summary

Technical Problem

[0003]在现有技术中,工作人员需要调节补光灯的照射角度时,通过旋转三脚架上的锁紧旋钮以松开角度调节关节而调整补光灯的角度,再通过拧紧该锁紧旋钮以锁紧角度调节关节而锁定补光灯的照射角度,使用起来较不方便;而且容易混淆锁紧旋钮的旋转方向,操作逻辑反人性化

Benefits of technology

[0015] The fixing device for the supplementary light provided by this utility model is fixedly connected to the locking member through the connecting shaft passing through the first clamping arm, the fixed arm, and the second clamping arm, so that the clamping member and the fixed arm are hinged together, and the rotating seat and the power supply unit are hinged together. Through the cooperation of the limiting block and the first clamping arm, the relative rotation of the unlocking member and the clamping member is restricted. Then, through the cooperation of the stop structure and the mating structure, the locking member locks the fixed arm, thereby restricting the rotation of the clamping member relative to the fixed arm, and thus restricting the rotation of the rotating seat relative to the power supply unit. Through the elastic connection between the pressing part and the first clamping arm, the unlocking member can drive the locking member to move closer to or away from the fixed arm, so that the stop structure and the mating structure can cooperate or separate, thereby restricting the rotation of the clamping member relative to the fixed arm or releasing the restriction of the locking member on the rotation of the clamping member relative to the fixed arm. By providing an installation interface, a charging interface, and a threaded interface on the power supply unit, the fixing and power supply of the supplementary light can be realized, and the fixing device of the supplementary light can be detachably installed on a tripod.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224771449U_ABST
    Figure CN224771449U_ABST
Patent Text Reader

Abstract

A kind of fixing device of light supplement lamp, including rotating seat, rotary adjusting unit and energy supplement unit, the upper end of rotating seat is provided with installation interface, the lower end of rotating seat is hingedly connected with energy supplement unit, rotary adjusting unit is used to adjust the rotation angle of rotating seat, and charging interface and screw thread interface are arranged on energy supplement unit;The upper surface of energy supplement unit is fixed with fixed arm, the lower end of rotating seat is provided with clamping piece, clamping piece includes first clamping arm and second clamping arm, fixed arm is clamped between first clamping arm and second clamping arm, rotary adjusting unit includes unlocking piece and locking piece, unlocking piece has pressing portion and connecting shaft, pressing portion is elastically connected with first clamping arm, connecting shaft passes through first clamping arm, fixed arm, second clamping arm and its end is fixedly connected with locking piece, locking piece is rotatably connected with fixed arm, locking piece is provided with stop structure, fixed arm is provided with matching structure, and limiting block is arranged on connecting shaft.The utility model also provides a tripod.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment technology, and in particular to a fixing device for a fill light and a tripod. Background Technology

[0002] Currently, fill lights are commonly used for supplemental lighting in photography or live streaming, and these fill lights are usually mounted on a tripod.

[0003] In the existing technology, when the staff needs to adjust the illumination angle of the fill light, they need to rotate the locking knob on the tripod to loosen the angle adjustment joint and adjust the angle of the fill light, and then tighten the locking knob to lock the illumination angle of the fill light. This is not very convenient to use; moreover, it is easy to confuse the rotation direction of the locking knob, and the operation logic is not user-friendly.

[0004] In addition, many fill lights have built-in batteries, which can work independently without an external power source, making them very suitable for outdoor and mobile shooting scenarios. However, these fill lights have relatively weak battery life, resulting in a short battery life that affects normal use. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device and tripod for a fill light, which aims to solve or at least partially solve the shortcomings of the above-mentioned background technology. It not only makes the operation of adjusting the illumination angle of the fill light simpler and more convenient, but also enables the fill light to be recharged, thus extending the battery life of the fill light.

[0006] This utility model provides a fixing device for a fill light, used to fix the fill light and adjust its illumination angle. It includes a rotating base, a rotation adjustment unit, and a power supply unit. The upper end of the rotating base has an installation interface for fixing the fill light, and the lower end of the rotating base is hinged to the power supply unit. The rotation adjustment unit is used to adjust the rotation angle of the rotating base. The power supply unit has a charging interface for charging the fill light and a threaded interface for mounting the fill light fixing device to a tripod. A fixing arm is fixed to the upper surface of the power supply unit, and a clamping member is provided at the lower end of the rotating base. The clamping member includes a first clamping arm and a second clamping arm, and the fixing arm is clamped between the first and second clamping arms. The rotation adjustment unit includes an unlocking member and a locking member. The device has a pressing part and a connecting shaft connected to the pressing part. The pressing part is elastically connected to the outer wall of the first clamping arm. The connecting shaft passes through the first clamping arm, the fixed arm, and the second clamping arm, and its end is fixedly connected to a locking member. The locking member passes through the second clamping arm and is rotatably connected to the fixed arm. The locking member has a stop structure facing the fixed arm. The fixed arm has a mating structure that cooperates with the stop structure. The connecting shaft has a limit block for limiting the rotation of the rotating seat relative to the unlocking member. When the rotation adjustment unit is locked, the stop structure cooperates with the mating structure to limit the rotation of the clamping member relative to the fixed arm. When the rotation adjustment unit is unlocked, by pressing the pressing part, the unlocking member drives the stop structure away from the mating structure to release the restriction of the locking member on the rotation of the clamping member relative to the fixed arm.

[0007] Furthermore, the stop structure is a convex tooth, and the mating structure is a tooth groove. When the rotary adjustment unit is locked, the convex tooth and the tooth groove mesh together.

[0008] Furthermore, the stopping structure is the first friction plate, and the mating structure is the second friction plate. When the rotary adjustment unit is locked, the first friction plate and the second friction plate abut against each other.

[0009] Furthermore, the first clamping arm is provided with a limiting groove that cooperates with the limiting block.

[0010] Furthermore, the locking element has a rotating cylinder that is rotatably connected to the fixed arm, and the stop structure is circumferentially distributed on the outer periphery of the end of the rotating cylinder.

[0011] Furthermore, a limiting protrusion is provided inside the rotating drum, and a mating groove that abuts against the limiting protrusion is recessed at the end of the connecting shaft. The connecting shaft passes into the rotating drum and is fixedly connected to the locking member by fasteners.

[0012] Furthermore, the charging interface is a USB interface and can be electrically connected to the fill light via a charging cable.

[0013] Furthermore, the mounting interface is either a cold shoe or a hot shoe. Furthermore, the thread specification for the threaded interface is 1 / 4-20 UNC.

[0014] This utility model also provides a tripod, including the above-mentioned fixing device for the fill light, wherein the fixing device for the fill light is screwed onto the tripod via a threaded interface.

[0015] The fixing device for the supplementary light provided by this utility model is fixedly connected to the locking member through the connecting shaft passing through the first clamping arm, the fixed arm, and the second clamping arm, so that the clamping member and the fixed arm are hinged together, and the rotating seat and the power supply unit are hinged together. Through the cooperation of the limiting block and the first clamping arm, the relative rotation of the unlocking member and the clamping member is restricted. Then, through the cooperation of the stop structure and the mating structure, the locking member locks the fixed arm, thereby restricting the rotation of the clamping member relative to the fixed arm, and thus restricting the rotation of the rotating seat relative to the power supply unit. Through the elastic connection between the pressing part and the first clamping arm, the unlocking member can drive the locking member to move closer to or away from the fixed arm, so that the stop structure and the mating structure can cooperate or separate, thereby restricting the rotation of the clamping member relative to the fixed arm or releasing the restriction of the locking member on the rotation of the clamping member relative to the fixed arm. By providing an installation interface, a charging interface, and a threaded interface on the power supply unit, the fixing and power supply of the supplementary light can be realized, and the fixing device of the supplementary light can be detachably installed on a tripod. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a fixing device for a supplementary light according to Embodiment 1 of this utility model.

[0018] Figure 2 for Figure 1 An exploded perspective view of the mounting device for the fill light shown.

[0019] Figure 3 for Figure 2 A perspective view of the unlocking component shown.

[0020] Figure 4 for Figure 5 A perspective view of the locking element shown.

[0021] Figure 5 for Figure 2 A perspective view of the rotating base shown.

[0022] Figure 6 for Figure 2 The magnified 3D image at point A in the middle.

[0023] Figure 7 for Figure 2 A three-dimensional view of the energy replenishment unit shown.

[0024] Figure 8 for Figure 1 Partial cross-sectional view of the fixing device for the fill light shown in the locked state.

[0025] Figure 9 for Figure 1 Partial cross-sectional view of the mounting device for the fill light shown in the unlocked state.

[0026] Figure 10 This is a partial cross-sectional view of a fixing device for a supplementary light in the locked state, according to Embodiment 2 of this utility model.

[0027] Figure 11 This is a partial cross-sectional view of a fixing device for a supplementary light in the locked state, according to Embodiment 2 of this utility model.

[0028] The attached diagram lists the components represented by each number as follows: 10. Rotary seat; 11. Mounting interface; 12. First clamping arm; 121. First connecting hole; 122. Limiting groove; 123. Mounting groove; 13. Second clamping arm; 131. Second connecting hole; 132. Dust cover; 20. Rotation adjustment unit; 21. Unlocking component; 211. Pressing part; 212. Connecting shaft; 213. Limiting block; 214. Mating groove; 215. Screw hole; 22. Locking component; 221. Raised tooth; 222. Rotary cylinder; 223. Limiting protrusion; 224. First friction plate; 23. Elastic component; 24. Fastener; 30. Power supply unit; 31. Charging interface; 32. Housing; 321. Fixing arm; 322. Threaded interface; 323. Tooth groove; 324. Shaft hole; 325. Second friction plate; 326. Clearance hole. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] The directional terms such as "up," "down," "left," "right," "front," "back," "top," and "bottom" (if present) used in the specification and claims of this utility model are defined according to the position of the structures in the drawings and the relative positions of the structures, and are only for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this application.

[0032] Example 1: Please see Figures 1-3 and Figures 7-9 A fixing device for a fill light, which can be used alone or mounted on a tripod, is used to fix the fill light and adjust the illumination angle of the fill light. It includes a rotating base 10, a rotation adjustment unit 20 and a power replenishment unit 30.

[0033] The upper end of the rotating base 10 is provided with an installation interface 11 for fixing the fill light, and the lower end of the rotating base 10 is hinged to the power supply unit 30; the rotation adjustment unit 20 is used to adjust the rotation angle of the rotating base 10; the power supply unit 30 is provided with a charging interface 31 for charging the fill light and a threaded interface 322 reserved for mounting the fill light fixing device on the tripod.

[0034] A fixed arm 321 is fixed on the upper surface of the energy replenishment unit 30, and a clamping member is provided at the lower end of the rotating seat 10. The clamping member includes a first clamping arm 12 and a second clamping arm 13, and the fixed arm 321 is clamped between the first clamping arm 12 and the second clamping arm 13.

[0035] The rotation adjustment unit 20 includes an unlocking member 21 and a locking member 22. The unlocking member 21 has a pressing part 211 and a connecting shaft 212 connected to the pressing part 211. The pressing part 211 is elastically connected to the outer side wall of the first clamping arm 12. The connecting shaft 212 passes through the first clamping arm 12, the fixed arm 321, and the second clamping arm 13, and its end is fixedly connected to the locking member 22. The locking member 22 passes through the second clamping arm 13 and is rotatably connected to the fixed arm 321. The locking member 22 is provided with a stop structure facing the fixed arm 321. The fixed arm 321 is provided with a mating structure that cooperates with the stop structure. The connecting shaft 212 is provided with a limiting block 213 for limiting the rotation of the rotating seat 10 relative to the unlocking member 21.

[0036] When the rotary adjustment unit 20 is locked, the stop structure cooperates with the mating structure to restrict the rotation of the clamping member relative to the fixed arm 321; when the rotary adjustment unit 20 is unlocked, by pressing the pressing part 211, the unlocking member 21 drives the stop structure away from the mating structure to release the restriction of the locking member 22 on the rotation of the clamping member relative to the fixed arm 321.

[0037] As described above, the fixing device for the supplementary light provided by this utility model is fixedly connected to the locking member 22 via the connecting shaft 212 passing through the first clamping arm 12, the fixed arm 321, and the second clamping arm 13, so that the clamping member is hinged to the fixed arm 321, thereby realizing the hinged connection between the rotating seat 10 and the supplementary energy unit 30; through the cooperation of the limiting block 213 and the first clamping arm 12, the relative rotation between the unlocking member 21 and the clamping member is restricted; and through the cooperation of the stop structure and the cooperating structure, the locking member 22 locks the fixed arm 321, thereby restricting the rotation of the clamping member relative to the fixed arm 321, thus restricting the rotation of the rotating seat 10. The rotation of the 0 relative to the power replenishment unit 30; through the elastic connection between the pressing part 211 and the first clamping arm 12, the unlocking part 21 can drive the locking part 22 to move closer to or away from the fixed arm 321, thereby enabling the stop structure to engage or disengage with the mating structure, thereby restricting the rotation of the clamping part relative to the fixed arm 321 or releasing the restriction of the locking part 22 on the rotation of the clamping part relative to the fixed arm 321; by providing the mounting interface 11, charging interface 31, and threaded interface 322 on the power replenishment unit 30, the fixation and power replenishment of the fill light can be realized, and the fixing device of the fill light can be mounted on a tripod.

[0038] Please see Figure 4 , Figure 6 and Figure 8 The stop structure is a tooth 221, and the mating structure is a tooth groove 323. When the rotation adjustment unit 20 is locked, the tooth 221 and the tooth groove 323 mesh together to limit the rotation of the clamping member relative to the fixed arm 321, thereby locking the rotating seat 10.

[0039] Please see Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 The first clamping arm 12, the second clamping arm 13, and the fixing arm 321 are respectively provided with a first connecting hole 121, a second connecting hole 131, and a shaft hole 324, which are coaxially arranged. The connecting shaft 212 passes through the first connecting hole 121, the shaft hole 324, and the second connecting hole 131 in sequence and is fixedly connected to the locking member 22. A dust cover 132 is detachably installed on the second connecting hole 131. Gear grooves 323 are distributed in a ring around the outer periphery of the shaft hole 324.

[0040] More specifically, the first connecting hole 121 of the first clamping arm 12 is provided with a limiting groove 122 that cooperates with the limiting block 213. The limiting block 213 and the limiting groove 122 cooperate to restrict the relative rotation of the unlocking member 21 and the clamping member.

[0041] More specifically, an elastic element 23 is provided between the pressing part 211 and the first clamping arm 12. The first clamping arm 12 is recessed with a mounting groove 123 for mounting the elastic element 23. The two ends of the elastic element 23 abut against the inner side of the pressing part 211 and the groove wall of the mounting groove 123, respectively. In this embodiment, the elastic element 23 is a spring.

[0042] Please see Figure 3 , Figure 4 and Figure 8 The locking element 22 has a rotating cylinder 222, which is rotatably connected to the fixed arm 321. More specifically, the rotating cylinder 222 is rotatably disposed within the shaft hole 324. The protruding teeth 221 are evenly distributed circumferentially on the outer periphery of the end of the rotating cylinder 222.

[0043] Furthermore, a limiting protrusion 223 is provided inside the rotating drum 222, and a mating groove 214 is recessed at the end of the connecting shaft 212 to abut against the limiting protrusion 223. The connecting shaft 212 passes into the rotating drum 222 and is fixedly connected to the locking member 22 by a fastener 24. More specifically, the connecting shaft 212 has a screw hole 215 for screwing into the fastener 24.

[0044] The above structure enables the unlocking member 21 and the locking member 22 to be fixed together, forming a whole. The locking member 22 can move back and forth along the axial direction with the unlocking member 21. At the same time, the cooperation between the limiting protrusion 223 and the mating groove 214 can prevent the relative rotation between the connecting shaft 212 and the rotating drum 222 from causing the rotating seat 10 to fail to lock.

[0045] Please see Figure 2 and Figure 7 The power replenishment unit 30 includes a housing 32 and a rechargeable battery (not shown). The rechargeable battery is housed in the housing 32. The fixing arm 321 and the threaded interface 322 are respectively located on the upper and lower surfaces of the housing 32. The housing 32 also has a clearance hole 326 that exposes the charging interface 31. The charging interface 31 is electrically connected to the rechargeable battery.

[0046] Furthermore, the charging port 31 is a USB port and can be electrically connected to the fill light via a charging cable.

[0047] Furthermore, in this embodiment, the mounting interface 11 is a cold shoe connector, compatible with fill lights of different power levels. This cold shoe connector mates with the cold shoe plug of the fill light to fix the fill light in place. Additionally, devices such as wireless microphones and small stabilizers can also be mounted on this cold shoe connector.

[0048] Mounting interface 11 can also be a hot shoe interface, suitable for lower-power fill lights. This hot shoe interface is electrically connected to the rechargeable battery of the power unit, allowing direct power supply without the need for a charging cable to connect the fill light. Additionally, flash units, triggers, and other devices can also be mounted on this hot shoe interface.

[0049] More specifically, the thread specification of the threaded interface 322 is 1 / 4-20 UNC, which means that the fixing device of the fill light can be compatible with tripods on the market, improving its versatility.

[0050] The usage process of the fixing device for the supplementary light in this embodiment: (1) Please refer to Figure 8 In the initial state, the rotation adjustment unit 20 is locked, the convex tooth 221 and the tooth groove 323 are engaged, the clamping member cannot rotate relative to the fixed arm 321, and the rotating seat 10 is locked.

[0051] (2) Please refer to Figure 9 When it is necessary to adjust the angle of the rotating seat 10, press the pressing part 211 by hand and do not release it. The elastic member 23 is compressed, the unlocking member 21 drives the locking member 22 and causes the protrusion 221 to disengage from the tooth groove 323, thereby releasing the restriction of the locking member 22 on the rotation of the rotating seat 10 relative to the energy replenishment unit 30.

[0052] (3) Please refer to Figure 8 Press the pressing part 211 continuously, rotate the rotating seat 10 to adjust to a suitable angle, and then release the pressing part 211. The elastic element 23 will reset so that the protrusion 221 and the groove 323 will mesh again, and the rotating seat 10 will be locked.

[0053] Example 2: A fixing device for a supplementary light, the structure of which is similar to that of the fixing device for the supplementary light in Embodiment 1, the difference being: Please see Figure 10 The stopping structure is the first friction plate 224, and the cooperating structure is the second friction plate 325. When the rotation adjustment unit 20 is locked, the first friction plate 224 and the second friction plate 325 abut against each other to form static friction, thereby limiting the rotation of the clamping member relative to the fixed arm 321 and realizing the locking of the rotating seat 10.

[0054] More specifically, the first friction plate 224 is circumferentially distributed on the outer periphery of the end of the rotating drum 222.

[0055] The usage process of the fixing device for the supplementary light in this embodiment: (1) Please refer to Figure 10 In the initial state, the rotation adjustment unit 20 is locked, the first friction plate 224 and the second friction plate 325 abut against each other, the clamping member cannot rotate relative to the fixed arm 321, and the rotating seat 10 is locked.

[0056] (2) Please refer to Figure 11When it is necessary to adjust the angle of the rotating seat 10, press the pressing part 211 by hand and do not release it. The elastic element 23 is compressed, the unlocking element 21 drives the locking element 22 and causes the first friction plate 224 to disengage from the second friction plate 325, thereby releasing the restriction of the locking element 22 on the rotation of the rotating seat 10 relative to the energy replenishment unit 30.

[0057] (3) Please refer to Figure 10 Press the pressing part 211 continuously, rotate the rotating seat 10 to adjust to a suitable angle, and then release the pressing part 211. The elastic element 23 will reset so that the first friction plate 224 and the second friction plate 325 will abut against each other again, and the rotating seat 10 will be locked.

[0058] In addition, this utility model also provides a tripod, including a fixing device for the fill light as described in any of the above embodiments, wherein the fixing device for the fill light is screwed onto the tripod via a threaded interface 322.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A fixing device for a supplementary light, used to fix the supplementary light and adjust the illumination angle of the supplementary light, characterized in that, The device includes a rotating base (10), a rotation adjustment unit (20), and a power replenishing unit (30). The upper end of the rotating base (10) is provided with an installation interface (11) for fixing the fill light. The lower end of the rotating base (10) is hinged to the power replenishing unit (30). The rotation adjustment unit (20) is used to adjust the rotation angle of the rotating base (10). The power replenishing unit (30) is provided with a charging interface (31) for charging the fill light and a threaded interface (322) reserved for mounting the fill light fixing device on a tripod. The upper surface of the energy replenishment unit (30) is fixed with a fixing arm (321), and the lower end of the rotating seat (10) is provided with a clamping member. The clamping member includes a first clamping arm (12) and a second clamping arm (13). The fixing arm (321) is clamped between the first clamping arm (12) and the second clamping arm (13). The rotation adjustment unit (20) includes an unlocking member (21) and a locking member (22). The unlocking member (21) has a pressing part (211) and a connecting shaft (212) connected to the pressing part (211). The pressing part (211) is elastically connected to the outer wall of the first clamping arm (12). The connecting shaft (212) passes through the first clamping arm (12), the fixed arm (321), and the second clamping arm (13), and its end is fixedly connected to the locking member (22). The locking member (22) passes through the second clamping arm (13) and is rotatably connected to the fixed arm (321). The locking member (22) is provided with a stop structure facing the fixed arm (321). The fixed arm (321) is provided with a mating structure that cooperates with the stop structure. The connecting shaft (212) is provided with a limiting block (213) for limiting the rotation of the rotating seat (10) relative to the unlocking member (21). When the rotation adjustment unit (20) is locked, the stop structure cooperates with the mating structure to restrict the rotation of the clamping member relative to the fixed arm (321); When the rotation adjustment unit (20) is unlocked, by pressing the pressing part (211), the unlocking member (21) drives the stop structure away from the mating structure to release the restriction of the locking member (22) on the rotation of the clamping member relative to the fixed arm (321).

2. The fixing device for the supplementary light as described in claim 1, characterized in that, The stop structure is a tooth (221), the mating structure is a tooth groove (323), and when the rotation adjustment unit (20) is locked, the tooth (221) and the tooth groove (323) mesh together.

3. The fixing device for the supplementary light as described in claim 1, characterized in that, The stop structure is a first friction plate (224), the mating structure is a second friction plate (325), and when the rotation adjustment unit (20) is locked, the first friction plate (224) and the second friction plate (325) abut against each other.

4. The fixing device for the supplementary light as described in claim 1, characterized in that, The first clamping arm (12) is provided with a limiting groove (122) that cooperates with the limiting block (213).

5. The fixing device for the supplementary light as described in claim 1, characterized in that, The locking member (22) has a rotating cylinder (222) which is rotatably connected to the fixed arm (321), and the stop structure is circumferentially distributed on the outer periphery of the end of the rotating cylinder (222).

6. The fixing device for the supplementary light as described in claim 5, characterized in that, The rotating drum (222) is provided with a limiting protrusion (223), and the end of the connecting shaft (212) is recessed with a mating groove (214) that abuts against the limiting protrusion (223). The connecting shaft (212) passes into the rotating drum (222) and is fixedly connected to the locking member (22) by a fastener (24).

7. The fixing device for the supplementary light as described in claim 1, characterized in that, The charging interface (31) is a USB interface and can be electrically connected to the fill light via a charging cable.

8. The fixing device for the supplementary light as described in claim 1, characterized in that, The mounting interface (11) is either a cold shoe interface or a hot shoe interface.

9. The fixing device for the supplementary light as described in claim 1, characterized in that, The thread specification of the threaded interface (322) is 1 / 4-20 UNC.

10. A tripod, characterized in that, Includes a fixing device for a fill light as described in any one of claims 1 to 9, wherein the fixing device for the fill light is screwed onto the tripod via the threaded interface (322).