Electric focusing device

Abstract

The utility model discloses an electric focusing device, comprising a support main body used for installing a lamp body and driving the lamp body to rotate during rotation; the adjusting assembly comprises a driving mechanism and a transmission mechanism, and the power output end of the driving mechanism is connected with the transmission mechanism so as to drive the transmission mechanism to rotate; the transmission mechanism is connected with the support body and used for driving the support body to rotate during rotation. The support body used for installing the lamp body is connected with the transmission mechanism, then the transmission mechanism is driven by the driving mechanism to rotate so as to drive the lamp body on the support body to rotate together, the angle direction of the lamp body can be intelligently adjusted, an operator does not need to manually adjust the lamp body, operation is more convenient, and the whole structure is more intelligent.

Description

Technical Field

[0001] The utility model relates to the technical field of photography, in particular to an electric focusing device. Background Art

[0002] In the process of creating film and television dramas, advertisements, and videos, lamps are often needed for lighting. Due to different usage scenarios, the angle and direction of the light often need to be adjusted, so the angle position of the lamp body needs to be adjusted from time to time. The existing method is usually manual adjustment, but when the lamp body is suspended, it is very inconvenient to adjust. In addition, some high-power lamp bodies are relatively large in size and weight, making manual adjustment difficult and inconvenient for users to operate. Utility Model Content

[0003] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides an electric focusing device, which cooperates with a driving mechanism and a transmission mechanism to drive a bracket body used to connect the lamp to rotate, thereby realizing intelligent adjustment of the angle direction of the lamp.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] An electric focusing device, comprising:

[0006] A bracket body, wherein the bracket body is used to mount the lamp body and drives the lamp body to rotate when rotating;

[0007] The adjusting component includes a driving mechanism and a transmission mechanism. The power output end of the driving mechanism is connected to the transmission mechanism to drive the transmission mechanism to rotate; the transmission mechanism is connected to the bracket body and is used to drive the bracket body to rotate when rotating.

[0008] Furthermore, the driving mechanism includes a driving motor and a reducer, the driving motor is connected to a power input end of the reducer, and the power output end of the reducer is connected to the transmission mechanism.

[0009] Furthermore, the transmission mechanism includes a first transmission member and a second transmission member, the first transmission member is connected to the reducer, one end of the second transmission member is meshed and connected to the first transmission member, the other end of the second transmission member is rotatably inserted into the top end of the bracket body, and the first transmission member and the second transmission member are arranged perpendicular to each other.

[0010] Further, the transmission mechanism includes a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear are respectively formed as the first transmission member and the second transmission member, the first bevel gear is rotatably connected to the reducer, the second bevel gear is perpendicular to and meshingly connected to the first bevel gear, and the end of the second bevel gear away from the first bevel gear is rotatably inserted into the bracket body via a rotating shaft.

[0011] Furthermore, a mounting box is provided at the top of the bracket body, and the bracket body is rotatably connected to the bottom of the mounting box; a mounting cavity is provided in the mounting box, and the driving mechanism and the transmission mechanism are both installed in the mounting cavity; one end of the rotating shaft is rotatably inserted into the second bevel gear, and the other end of the rotating shaft is rotatably inserted into the bracket body, so that the bracket body is rotatably connected to the mounting box.

[0012] Furthermore, a bearing seat is sleeved on the outer periphery of the rotating shaft, one end of the bearing seat is installed in the bracket body, and the other end of the bearing seat extends into the installation box and is connected to the rotating shaft; the bearing seat is a needle bearing.

[0013] Furthermore, there are two driving mechanisms and two transmission mechanisms respectively, and the two driving mechanisms and the two transmission mechanisms are respectively located at the top end and the bottom end of the bracket body. A connecting plate is provided at the bottom end of the bracket body, one end of the connecting plate is connected to one of the transmission mechanisms located at the bottom end of the bracket body, and the other end of the connecting plate is connected to the lamp body.

[0014] Furthermore, it also includes two sensors and a sensor sheet, the two sensors are respectively located at the bottom ends of the installation box and the bracket body, the two sensor sheets are respectively connected to the two transmission mechanisms and are arranged one-to-one with the two sensors, and the sensor sheets are used to move closer to or away from the sensors when the transmission mechanism rotates.

[0015] Furthermore, the bracket body includes a first support plate and a second support plate, the first support plate and the second support plate are spaced apart to form a clamping space, and a plurality of connecting rods are provided between the first support plate and the second support plate, the plurality of connecting rods are spaced apart and distributed in the clamping space, one end of the plurality of connecting rods are connected to the first support plate, the other end of the plurality of connecting rods are connected to the second support plate, and the adjustment assembly is clamped in the clamping space; the first support plate and the second support plate are both semicircular.

[0016] Furthermore, at least one of the second bevel gears and the rotating shaft is provided with a conductor track, and the conductor track is used to pass through an external circuit.

[0017] To sum up, the electric focusing device provided by the utility model has the following technical effects: it connects the bracket main body used to install the lamp body with the transmission mechanism, and then drives the transmission mechanism to rotate through the driving mechanism, so as to drive the lamp body on the bracket main body to rotate together, thereby realizing intelligent adjustment of the angle direction of the lamp body, without the operator manually adjusting the lamp body, the operation is more convenient, and the entire structure is more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0020] Figure 3 It is a structural sectional view of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the second bevel gear in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the rotating shaft in the utility model;

[0023] The meanings of the reference numerals are as follows:

[0024] 10. Bracket body; 11. First support plate; 12. Second support plate; 13. Connecting rod; 14. Connecting plate; 15. Clamping space; 20. Driving mechanism; 21. Driving motor; 22. Reducer; 30. Transmission mechanism; 31. First bevel gear; 32. Second bevel gear; 33. Rotating shaft; 34. Bearing seat; 35. Wire guide; 40. Mounting box; 41. Hook; 50. Induction sheet; 60. Sensor. DETAILED DESCRIPTION

[0025] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] See also Figures 1 to 5 The utility model discloses an electric focusing device, including a bracket main body 10 and an adjusting component. The bracket main body 10 can be used to install a lamp body and drive the lamp body to rotate when it rotates; and the adjusting component includes a driving mechanism 20 and a transmission mechanism 30. The power output end of the driving mechanism 20 is connected to the transmission mechanism 30, thereby driving the transmission mechanism 30 to rotate, and then the transmission mechanism 30 is connected to the bracket main body 10, so that the bracket main body 10 can rotate when the transmission mechanism 30 rotates.

[0029] On the basis of the above mechanism, during assembly, the power output end of the driving mechanism 20 can be first connected to the transmission mechanism 30, and then the bracket main body 10 can be connected to the transmission mechanism 30. In this way, when the driving mechanism 20 moves, the transmission mechanism 30 can be driven to rotate, thereby driving the bracket main body 10 to rotate. Therefore, after the lamp body is installed on the bracket main body 10, the bracket main body 10 can rotate along with the bracket main body 10 during the rotation of the transmission mechanism 30, and the lamp body can continuously change the angle direction during the rotation process, that is, the angle direction of the lamp body can be adjusted through the driving mechanism 20 and the transmission mechanism 30.

[0030] During specific use, the lamp body can be fixed to the bracket body 10 through a connecting piece (such as screws or bolts, etc.), and the transmission mechanism 30 is connected to the bracket body 10. Specifically, the connection can be made by a connecting piece or a snap-on connection. When the angle of the lamp body needs to be adjusted, the driving mechanism 20 can be turned on to drive the transmission mechanism 30 to rotate, and the transmission mechanism 30 can drive the bracket body 10 to rotate during the rotation. At this time, the lamp body connected to the bracket body 10 can rotate therewith, and the angle of the lamp body can be changed at will during the rotation process, so as to realize a more intelligent adjustment of the lamp body angle, without the need for manual adjustment of the lamp body, and convenient operation.

[0031] When existing lamps are used in the photography industry, based on different usage scenarios, it is often necessary to adjust the angle direction of the lamp body. The existing method is manual adjustment, which often requires the lamp to be illuminated. Because the lamp body is suspended, it is very inconvenient to adjust, and some high-power lamps have a larger size, weight and are difficult to adjust manually. Therefore, when the electric focusing device in this embodiment is applied to the photography industry, the bracket main body 10 for installing the lamp body is connected to the transmission mechanism 30, and then the transmission mechanism 30 is driven to rotate through the driving mechanism 20 to drive the lamp body on the bracket main body 10 to rotate together, thereby realizing intelligent adjustment of the angle direction of the lamp body, without the operator manually adjusting the lamp body, and the operation is more convenient and more intelligent.

[0032] It should be noted that the driving mechanism 20 in this embodiment uses an existing driving motor 21 (such as a servo motor or a stepping motor, etc.). During assembly, the driving motor 21 is electrically connected to the background controller to control the start and stop of the driving motor 21 to achieve automation, and the transmission mechanism 30 can be a transmission shaft, which is pivotally connected to the power output end of the driving motor 21 through a coupling so that the driving motor 21 can be driven to rotate, thereby driving the bracket body 10 to rotate together.

[0033] Furthermore, the driving mechanism 20 includes a driving motor 21 and a reducer 22 . The driving motor 21 is connected to a power input end of the reducer 22 , and an output end of the reducer 22 is connected to the transmission mechanism 30 .

[0034] Specifically, in the existing photography industry, when some high-power lamps need to be adjusted, the weight of the lamps is relatively large. If the weight borne by the bracket main body 10 is too large, the transmission mechanism 30 may be overloaded, and the drive motor 21 may fail to operate due to the excessive load, making it impossible to drive the transmission mechanism 30 to rotate and causing structural failure. Therefore, the drive mechanism 20 in this embodiment is composed of a drive motor 21 and a reducer 22. During assembly, the power output end of the drive motor 21 is connected to the power input end of the reducer 22, and the power output end of the reducer 22 is connected to the transmission mechanism 30. Since the reducer 22 receives a large torque during transmission, the torque value transmitted to the drive motor 21 is small when overloaded, thereby avoiding failure and damage of the drive motor 21 caused by overload, thereby indirectly improving the torque of the entire structure, so that it can withstand a lamp body of relatively large weight.

[0035] Preferably, the reducer 22 in this embodiment can be a worm reducer 22, a precision planetary reducer 22 or an RV reducer 22, etc.

[0036] Furthermore, the transmission mechanism 30 in this embodiment includes a first transmission member and a second transmission member, the first transmission member is connected to the reducer 22, one end of the second transmission member is meshedly connected to the first transmission member, and the other end of the second transmission member is rotatably inserted into the top end of the bracket body 10, and the first transmission member and the second transmission member are arranged vertically to each other.

[0037] On the basis of the above structure, during assembly, the first transmission member can be connected to the power output end of the reducer 22 along the installation direction of the reducer 22, and the second transmission member is vertically arranged and meshingly connected to the first transmission member. In this way, when the reducer 22 is started, the power output thereof can be vertically decomposed to the second transmission member. In this way, the bracket body 10 with the second transmission member is vertically arranged with the reducer 22, thereby ensuring the effective transmission of energy during the transmission process, reducing energy loss, and thus improving the transmission efficiency; in addition, the vertical arrangement helps to reduce vibration and noise during the transmission process.

[0038] It should be noted that the first transmission member can be formed by a worm on the reducer 22, and the second transmission member can be a transmission gear, the two are meshingly connected and the transmission is coordinated; of course, the first transmission member and the second transmission member can also be two meshingly connected bevel gears, the two are meshingly connected to change the direction of the power output by the reducer 22.

[0039] Furthermore, the transmission mechanism 30 includes a first bevel gear 31 and a second bevel gear 32, the first bevel gear 31 and the second bevel gear 32 are respectively formed as a first transmission member and a second transmission member, the first bevel gear 31 is rotatably connected to the reducer 22, the second bevel gear 32 is perpendicular to the first bevel gear 31 and meshingly connected, and the end of the second bevel gear 32 away from the first bevel gear 31 is rotatably penetrated into the bracket body 10 via a rotating shaft 33.

[0040] On the basis of the above structure, the first transmission member and the second transmission member in the present embodiment are respectively formed by the first bevel gear 31 and the second bevel gear 32. During assembly, the first bevel gear 31 can be sleeved onto the power output shaft of the reducer 22, and the second bevel gear 32 is vertically arranged and meshingly connected with the first bevel gear 31. The rotating shaft 33 is then passed through the second bevel gear 32 and the top of the bracket body 10 in turn, so as to drive the lamp body on the bracket body 10 to rotate through the meshing transmission cooperation between the second bevel gear 32 and the first bevel gear 31.

[0041] Compared with the meshing transmission of the worm and the gear, the transmission assembly in this embodiment uses two bevel gear meshing transmission, which can provide a larger contact ratio and overlap coefficient, which means that the contact area between the gears is larger, which can reduce impact, make the transmission more stable, and reduce noise.

[0042] Furthermore, a mounting box 40 is provided at the top of the bracket body 10, and the bracket body 10 is rotatably connected to the bottom of the mounting box 40. The mounting box 40 has a mounting cavity, and the driving mechanism 20 and the transmission mechanism 30 are both installed in the mounting cavity. One end of the rotating shaft 33 is rotatably inserted into the second bevel gear 32, and the other end of the rotating shaft 33 is rotatably connected to the bracket body 10, so that the bracket body 10 and the mounting box 40 are rotatably connected.

[0043] On the basis of this structure, during assembly, the driving mechanism 20 and the transmission mechanism 30 can be installed in the installation cavity of the installation box 40 to prevent dust or other impurities from entering the driving mechanism 20 or the transmission mechanism 30 and affecting the use of the two; and one end of the rotating shaft 33 can be rotatably penetrated in the second bevel gear 32 located inside the installation box 40, and the other end of the rotating shaft 33 can be penetrated in the bracket body 10, so that when the second bevel gear 32 drives the rotating shaft 33 to rotate, it can synchronously drive the bracket body 10 to rotate.

[0044] During specific installation, a bearing seat 34 can be installed on the bracket body 10 for the rotating shaft 33 to pass through. One end of the bearing seat 34 can be clamped in the bracket body 10, or it can be fixed in the bracket body 10 through a connecting piece (such as a screw or a bolt), and the other end of the bearing seat 34 can pass through the installation box 40 to be connected to the rotating shaft 33, so that the bracket body 10 and the installation box 40 can be rotatably connected. In this way, when the rotating shaft 33 rotates, it can drive the bearing seat 34 to rotate, and then drive the bracket body 10 connected to the bearing seat 34 to rotate together, so as to achieve the function of adjusting the angle direction of the lamp body on the bracket body 10.

[0045] In addition, by fitting the rotating shaft 33 with the bearing seat 34, the torque of the rotating shaft 33 can be increased, thereby indirectly increasing the load capacity of the entire structure. In order to increase the load capacity of this structure, the bearing seat 34 in this embodiment uses a needle bearing. Of course, other types of bearing seats 34 (such as ball bearings) can also be used when an extra-large load capacity is not required.

[0046] Furthermore, two driving mechanisms 20 and two transmission mechanisms 30 are respectively provided, and the two driving mechanisms 20 and the transmission mechanisms 30 are respectively located at the top and bottom ends of the bracket body 10, and a connecting plate 14 is also provided at the bottom end of the bracket body 10, and one end of the connecting plate 14 is connected to one of the transmission mechanisms 30 located at the bottom end of the bracket body 10, and the other end of the connecting plate 14 is connected to the lamp body, and can rotate together when the transmission mechanism 30 rotates.

[0047] In order to make the lamp body on the bracket main body 10 rotatable at a larger angle, two driving mechanisms 20 and two transmission mechanisms 30 are respectively provided in the present embodiment. The two driving mechanisms 20 and the two transmission mechanisms 30 are respectively installed at the top and the bottom of the bracket main body 10. Specifically, the driving mechanism 20 and the transmission mechanism 30 at the top can be installed in the installation box 40. When in use, the driving mechanism 20 and the transmission mechanism 30 located in the installation box 40 can be opened first. Through the cooperation of the two, the entire bracket main body 10 can be driven to rotate, thereby driving the lamp body to rotate at multiple angles in the circumferential direction of the bracket main body 10. If the rotation direction of the bracket main body 10 still cannot meet the user's requirements, the driving mechanism 20 and the transmission mechanism 30 located at the bottom of the bracket main body 10 can be opened. At this time, the transmission mechanism 30 can drive the connecting plate 14 to rotate, that is, the lamp body itself is driven to rotate through the rotation of the connecting plate 14, so that the angle of rotation is greater, that is, the angle range of the lamp body rotation is wider through the two sets of driving mechanisms 20 and the transmission mechanism 30.

[0048] During assembly, the two ends of the connecting plate 14 can be respectively mounted on the rotating shaft 33 in the transmission mechanism 30 located at the bottom end of the bracket body 10. In this way, when the second bevel gear 32 of the transmission mechanism 30 rotates to drive the rotating shaft 33 to rotate, the connecting plate 14 can rotate accordingly, thereby driving the lamp body itself to rotate.

[0049] Furthermore, the present invention further comprises two sensors 60 and two sensor sheets 50 . The two sensor sheets 50 can be arranged in a one-to-one correspondence with the two sensors 60 and are used to move closer to or away from the sensors 60 when the transmission mechanism 30 rotates.

[0050] On the basis of the above structure, during assembly, one of the sensors 60 and the sensor sheet 50 can be installed in the installation box 40. The sensor 60 can be fixed at a position close to the second bevel gear 32 in the installation box 40 by a connecting piece or a fixing plate, and the corresponding sensor sheet 50 can be installed on the outer periphery of the second bevel gear 32, so that the sensor sheet 50 can approach the sensor 60 once during each rotation of the second bevel gear 32, triggering the switch signal of the sensor 60 to issue an alarm, prompting the operator of the rotation angle of the bracket body 10, and recording the current position signal through the sensor 60 to accurately accumulate errors and transmit the data to the background data terminal.

[0051] Similarly, a sensor sheet 50 can be set on the outer periphery of another second bevel gear 32 located at the bottom, and a sensor 60 is set at the bottom end of the bracket body 10 near the second bevel gear 32. Through the cooperation of the two, it is possible to prompt whether the rotation angle of the lamp body reaches the upper limit, so as to record data and transmit it to the terminal, and the whole structure is more intelligent.

[0052] Preferably, the sensor 60 in this embodiment can be a Hall sensor, an infrared sensor, or a switch sensor, and the sensor sheet 50 can be a corresponding sensing part selected to match it, such as an infrared probe or an electric sensor sheet, etc. Both are connected to the base and the conveying seat by threaded connection or other methods such as snap connection.

[0053] Furthermore, the bracket body 10 includes a first support plate 11 and a second support plate 12, the first support plate 11 and the second support plate 12 are arranged at intervals to form a clamping space 15, and a plurality of connecting rods 13 are provided between the first support plate 11 and the second support plate 12, the plurality of connecting rods 13 are distributed at intervals in the clamping space 15, one end of the plurality of connecting rods 13 are connected to the first support plate 11, and the other ends of the plurality of connecting rods 13 are connected to the second support plate 12, and the adjustment component is clamped in the clamping space 15.

[0054] Specifically, the bracket body 10 in this embodiment is composed of a first support plate 11 and a second support plate 12. During assembly, the two support plates can be arranged opposite to each other and spaced apart, and then connected through a plurality of connecting columns to form a semi-open clamping space 15 between the two support plates. Then, the driving mechanism 20 and the transmission mechanism 30 at the bottom can be clamped in the clamping space 15, which is convenient for installation and wiring.

[0055] It should be noted that the connecting column can be a screw or a rod-shaped connecting piece, which is connected to the first support plate 11 and the second support plate 12 by plugging or welding.

[0056] Preferably, in order to improve the bearing capacity of the entire bracket, the first support plate 11 and the second support plate 12 are both semicircular. The semicircular shape can more evenly disperse the pressure acting thereon. This design makes the force points of the bracket body 10 more dispersed, thereby reducing the concentrated stress at a single point and improving the overall load capacity.

[0057] In addition, the semicircular shape itself has a higher structural stability, and its continuous curve shape enables the bracket to better resist bending and deformation when subjected to external forces, thereby maintaining its stability. Therefore, the entire bracket body 10 is composed of two semicircular support plates connected together, so that the load-bearing capacity of the entire structure is greater and the stability is higher.

[0058] Furthermore, a plurality of hooks 41 are provided on the bracket body 10 , and the plurality of hooks 41 are distributed at intervals on the top of the bracket body 10 .

[0059] In order to facilitate the hoisting and use of the bracket, a plurality of hooks 41 are provided on the bracket body 10. The plurality of hooks 41 are spaced apart on the top of the bracket body 10 to disperse the load through the plurality of hooks 41. When the lamp body hung on the bracket body 10 is heavy, the plurality of hooks 41 can share the load together, reduce the force on a single hook 41, and improve the load-bearing capacity and stability of the entire bracket body 10.

[0060] Furthermore, at least one of the second bevel gears 32 and the rotating shaft 33 is provided with a wire channel 35 , and the wire channel 35 is used to pass through an external circuit.

[0061] In addition, since the driving mechanism 20 and the lamp body need to be connected to the power cord, and when the angle of the lamp body is adjusted, the bracket body 10 and the transmission mechanism 30 need to rotate. If the power cord is directly routed from the outside, it is easy for the power cord to be entangled during the rotation process, affecting its use. Therefore, in this embodiment, the second bevel gear 32 and the rotating shaft 33 are designed to be hollow so that wiring channels can be formed inside them respectively. When routing the wires, the power cords of the lamp body and the driving mechanism 20 can be passed through the rotating shaft 33 or the bevel gear. When the entire mechanism rotates, since the rotating shaft 33 and the second bevel gear 32 will rotate accordingly, when the line passed through the rotating shaft 33 or the second bevel gear 32 rotates, it will also rotate together, which is not easy to get entangled, and the structure is more practical.

[0062] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electric focusing device, characterized in that: include: A bracket body (10), the bracket body (10) being used to mount the lamp body and driving the lamp body to rotate when rotating; An adjustment component, the adjustment component comprising a driving mechanism (20) and a transmission mechanism (30), wherein a power output end of the driving mechanism (20) is connected to the transmission mechanism (30) to drive the transmission mechanism (30) to rotate; the transmission mechanism (30) is connected to the support body (10) and is used to drive the support body (10) to rotate when rotating.

2. The electric focusing device according to claim 1, characterized in that: The driving mechanism (20) comprises a driving motor (21) and a reducer (22); the driving motor (21) is connected to a power input end of the reducer (22); and the power output end of the reducer (22) is connected to the transmission mechanism (30).

3. The electric focusing device according to claim 2, characterized in that: The transmission mechanism (30) comprises a first transmission member and a second transmission member, the first transmission member is connected to the reducer (22), one end of the second transmission member is meshedly connected to the first transmission member, and the other end of the second transmission member is rotatably inserted into the top end of the bracket body (10), and the first transmission member and the second transmission member are arranged perpendicular to each other.

4. The electric focusing device according to claim 3, characterized in that: The transmission mechanism (30) comprises a first bevel gear (31) and a second bevel gear (32), wherein the first bevel gear (31) and the second bevel gear (32) are respectively formed as the first transmission member and the second transmission member, wherein the first bevel gear (31) is rotatably connected to the reducer (22), the second bevel gear (32) and the first bevel gear (31) are perpendicular to each other and meshingly connected, and an end of the second bevel gear (32) away from the first bevel gear (31) is rotatably inserted into the bracket body (10) via a rotating shaft (33).

5. The electric focusing device according to claim 4, characterized in that: A mounting box (40) is provided at the top of the bracket body (10), and the bracket body (10) is rotatably connected to the bottom of the mounting box (40); a mounting cavity is provided in the mounting box (40), and the driving mechanism (20) and the transmission mechanism (30) are both installed in the mounting cavity; one end of the rotating shaft (33) is rotatably inserted into the second bevel gear (32), and the other end of the rotating shaft (33) is rotatably inserted into the bracket body (10), so that the bracket body (10) and the mounting box (40) are rotatably connected.

6. The electric focusing device according to claim 4, characterized in that: A bearing seat (34) is sleeved on the outer periphery of the rotating shaft (33); one end of the bearing seat (34) is installed in the bracket body (10), and the other end of the bearing seat (34) extends into the installation box (40) and is connected to the rotating shaft (33); the bearing seat (34) is a needle bearing.

7. The electric focusing device according to any one of claims 1 to 6, characterized in that: The driving mechanism (20) and the transmission mechanism (30) are provided with two, respectively. The two driving mechanisms (20) and the two transmission mechanisms (30) are respectively located at the top end and the bottom end of the bracket body (10). A connecting plate (14) is provided at the bottom end of the bracket body (10). One end of the connecting plate (14) is connected to one of the transmission mechanisms (30) located at the bottom end of the bracket body (10), and the other end of the connecting plate (14) is connected to the lamp body.

8. The electric focusing device according to claim 5, characterized in that: It also includes two sensors (60) and a sensor sheet (50), wherein the two sensors (60) are respectively located at the bottom ends of the installation box (40) and the bracket body (10), and the two sensor sheets (50) are respectively connected to the two transmission mechanisms (30) and are arranged one-to-one with the two sensors (60), and the sensor sheets (50) are used to move closer to or away from the sensors (60) when the transmission mechanism (30) rotates.

9. The electric focusing device according to claim 1, characterized in that: The bracket body (10) comprises a first support plate (11) and a second support plate (12); the first support plate (11) and the second support plate (12) are arranged at intervals to form a clamping space (15); a plurality of connecting rods (13) are arranged between the first support plate (11) and the second support plate (12); the plurality of connecting rods (13) are distributed at intervals in the clamping space (15); one end of the plurality of connecting rods (13) is connected to the first support plate (11), and the other end of the plurality of connecting rods (13) is connected to the second support plate (12); the adjustment component is clamped in the clamping space (15); the first support plate (11) and the second support plate (12) are both semicircular.

10. The electric focusing device according to claim 6, characterized in that: At least one of the second bevel gears (32) and the rotating shaft (33) is provided with a conductor track (35), and the conductor track (35) is used to pass through an external circuit.

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