Multi-gear control structure

Abstract

The utility model discloses a multi-gear control structure, and belongs to the field of shooting auxiliary equipment. The shell is provided with a first limiting bulge; the shifting piece is rotationally connected to the shell and is provided with a second limiting bulge; a travel space is formed between the shell and the shifting piece, and the first limiting bulge and the second limiting bulge are both located in the travel space; the gear adjusting switch is provided with a stroke limiting part, and the stroke limiting part can movably enter and exit from the stroke space; a sensor; the gear adjusting switch moves relative to the sensor and the shifting piece, so that signal transmission of the sensor is conducted or blocked, the stroke limiting part enters or breaks away from the stroke space, the moving stroke of the shifting piece is adjusted, the first limiting protrusion and the second limiting protrusion have different moving strokes, and therefore gear switching of multiple different strokes is achieved. Parameters can be conveniently adjusted.

Description

Technical Field

[0001] The utility model belongs to the field of shooting auxiliary equipment, and in particular relates to a multi-gear control structure. Background Art

[0002] When shooting with a camera, different compositions often require different lens parameters, such as zoom, focus, and aperture, so users need to rotate the lens to adjust the lens to capture the image. To facilitate lens adjustment, focus devices such as focus handles are currently available on the market. Focus handles are usually equipped with a dial (operating element). When the user rotates the dial, the processor of the focus handle generates a corresponding signal to control the adjustment of lens parameters. However, the existing dial adjustment method is relatively simple and cannot switch between multiple gears, making it inconvenient to use. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present invention is to provide a multi-gear control structure, which can realize the switching of various strokes through multiple gears, facilitate parameter adjustment, and is more convenient to use.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model provides a multi-gear control structure, comprising:

[0006] The housing has a first limiting protrusion;

[0007] A toggle member, the toggle member being rotatably connected to the housing and having a second limiting protrusion; a travel space being defined between the housing and the toggle member, the first limiting protrusion and the second limiting protrusion both being located within the travel space;

[0008] a gear adjustment switch, disposed on the housing and having a travel limiter, the travel limiter being able to move in and out of the travel space;

[0009] The gear adjustment switch can move relative to the housing so that the travel limiter enters or leaves the travel space, thereby adjusting the movable travel of the toggle member to achieve gear switching.

[0010] Furthermore, when the travel limiting portion extends into the travel space, the travel space can be divided into a first travel space and a second travel space, and the second limiting protrusion can be located in the first travel space or the second travel space to form different gears.

[0011] Furthermore, it also includes a detection module, which includes a control circuit board and a sensor. The sensor is electrically connected to the control circuit board. When the gear adjustment switch moves to the first position, the signal transmission of the sensor is blocked. When the gear adjustment switch moves to the second position, the signal transmission of the sensor is turned on.

[0012] Furthermore, the gear adjustment switch also includes a signal blocking part, the sensor has a signal transmission channel, and the signal blocking part can move relative to the signal transmission channel; when the gear adjustment switch moves to the first position, the signal blocking part enters the signal transmission channel, so that the signal transmission of the sensor is blocked; when the gear adjustment switch moves to the second position, the signal blocking part disengages from the signal transmission channel, so that the signal transmission of the sensor is turned on.

[0013] Furthermore, the gear adjustment switch includes a gear adjustment member and a gear positioning member, the travel limit portion is arranged on the gear adjustment member, the gear positioning member has several gear positioning areas, and the gear adjustment member includes a gear positioning portion, which can switch within several of the gear positioning areas and be locked with one of the gear positioning areas, so that the gear adjustment member can achieve adjustment of multiple gears.

[0014] Furthermore, the gear positioning member is elastically connected to the housing, so that the gear positioning member can move relative to the housing, thereby facilitating the gear positioning portion to switch among the plurality of gear positioning areas.

[0015] Furthermore, the gear position positioning portion is an arc-shaped protrusion, and the gear position positioning area is an arc-shaped groove adapted to the arc-shaped protrusion.

[0016] Furthermore, the shell has a movable groove, the gear positioning member is movably arranged in the movable groove, and a reset elastic member is arranged in the movable groove. One end of the reset elastic member is abutted or connected to the side wall of the movable groove, and the other end is abutted or connected to the gear positioning member.

[0017] Furthermore, the dial member includes a dial wheel, which has a rotation limit groove, and the shell has a rotation limit ring adapted to the rotation limit groove, the first limit protrusion is located on the side wall of the rotation limit groove, and the second limit protrusion is located on the outer wall of the rotation limit ring.

[0018] Furthermore, it also includes a control circuit board and a magnetic part. The sensor is electrically connected to the control circuit board, the control circuit board is fixed to the shell, and the magnetic part is fixed to the toggle part. A magnetic encoder that cooperates with the magnetic part is provided on the control circuit board, and the magnetic encoder is arranged relative to the magnetic part.

[0019] Compared with the prior art, the present application sets a travel limiter on the gear adjustment switch. The movement of the gear adjustment switch can drive the travel limiter to enter or leave the travel space. When the travel limiter enters the travel space, the travel limiter and the first limiter protrusion can limit the second limiter protrusion of the toggle member. When the travel limiter exits the travel space, the travel limiter releases the limit on the second limiter protrusion, and retains the limit of the first limiter protrusion on the second limiter protrusion. In summary, by adjusting the movable travel of the toggle member through the gear adjustment switch, the gear control switching of multiple different travels can be realized, which can facilitate the adjustment of parameters and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the focus handle structure.

[0021] Figure 2 Schematic diagram of the focus handle with the toggle omitted.

[0022] Figure 3 This is a cross-sectional view of the focus handle.

[0023] Figure 4 This is a schematic diagram of the structure of the focus handle that realizes gear adjustment.

[0024] Figure 5 This is an exploded view of the focus handle structure that enables gear adjustment.

[0025] Figure 6 It is a schematic diagram of the bottom structure of the toggle member.

[0026] Figure 7 It is a structural diagram of the gear adjustment component.

[0027] Figure 8 This is a cross-sectional view of the focus handle with the gear adjustment portion of the focus handle in the first gear.

[0028] Figure 9 This is a cross-sectional view of the focus handle with the gear adjustment portion of the focus handle in the second gear.

[0029] Figure 10 This is a cross-sectional view of the focus handle with the gear adjustment portion of the focus handle in the third gear.

[0030] Explanation of reference numbers: 1. Focus handle; 11. Main body; 12. Mounting position; 13. Main control PCBA board; 2. Multi-speed control structure; 21. Control circuit board; 22. Magnetic part; 23. Housing; 231. First limiting protrusion; 2311. Rotation limiting ring; 2312. Movable groove; 232. Toggle member; 2321. Dial wheel; 2322. Rotation limiting groove; 233. Second limiting protrusion; 235. Travel space; 2351. First travel space; 2352. Second travel space; 236. Rotating shaft; 237. Bearing; 238. Gear adjustment switch; 2381. Travel limiting part; 2382. Signal blocking part; 2383. Gear adjustment member; 2384. Gear positioning part; 2385. Gear positioning member; 2386. Gear positioning area; 239. Sensor; 24. Magnetic encoder; 3. Detection module. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] To achieve the above purpose, the technical solution of the utility model is as follows:

[0033] See also Figure 1-10 As shown, this embodiment provides a multi-level control structure 2, for example, a multi-level follow focus handle 1. When the follow focus handle 1 is connected to a photographic device, the focus, aperture, focus and other parameters of the photographic device can be adjusted in multiple levels.

[0034] See also Figure 1 The main body 11 of the focus handle 1 has a mounting position 12. The toggle member 232 of the focus handle 1 can be set at the mounting position 12, connected to the main control PCBA board 13 of the focus handle 1, and exposed on the main body 11 of the focus handle 1, thereby facilitating the operation of the multi-speed control structure 2 from outside the main body 11 to adjust the focus parameters of the photographic equipment.

[0035] See also Figure 2-4 In some embodiments, the multi-gear control structure 2 includes a housing 23, a toggle member 232, and a gear adjustment switch 238, wherein the housing 23 has a first limiting protrusion 231;

[0036] The toggle member 232 is rotatably connected to the housing 23 and has a second limiting protrusion 233 ; a travel space 235 is defined between the housing 23 and the toggle member 232 , and the first limiting protrusion 231 and the second limiting protrusion 233 are both located within the travel space 235 ;

[0037] The gear adjustment switch 238 is arranged on the shell 23 and has a stroke limit portion 2381, which can move in and out of the stroke space 235; a bar hole can be provided on the shell 23 to facilitate the gear adjustment switch 238 to move relative to the shell 23, so that the stroke limit portion 2381 enters or exits the stroke space 235, thereby adjusting the movable stroke of the toggle member 232.

[0038] Specifically, the multi-gear control structure 2 includes a control circuit board 21, a magnetic component 22

[0039] For details, see Figure 2-4 The toggle member 232 is rotatably connected to the housing 23, the control circuit board 21 is fixed to the housing 23, the magnetic member 22 is fixed to the toggle member 232, and a magnetic encoder 24 that cooperates with the magnetic member 22 is provided on the control circuit board 21, and the magnetic encoder 24 is arranged opposite to the magnetic member 22.

[0040] For details, see Figure 3 The magnetic member 22 is a magnet. By rotating the toggle member 232 outside the main body 11 of the focus handle 1, the magnet is driven to rotate relative to the magnetic encoder 24. The control circuit board 21 can detect the rotation angle of the magnet through the magnetic encoder 24, and then obtain the adjustment angle of the toggle member 232. The adjustment angle is fed back to the main control PCBA board 13 of the focus handle 1 through the control circuit board 21. The main control PCBA board 13 issues a corresponding control command, thereby adjusting parameters such as the focus angle of the photographic equipment.

[0041] Further, see Figure 5-6 The shell 23 has a first limiting protrusion 231, and the toggle member 232 has a second limiting protrusion 233; there is a travel space 235 between the shell 23 and the toggle member 232, the second limiting protrusion 233 and the first limiting protrusion 231 are both located in the travel space 235, and there will be structural interference when the two are in contact; the toggle member 232 is rotatably connected to the shell 23, so that there is a movable stroke between the second limiting protrusion 233 and the first limiting protrusion 231; the second limiting protrusion 233 can be driven to move toward the first limiting protrusion 231 by rotating the toggle member 232, and the maximum rotation distance between the two is the maximum movable stroke of the toggle member 232.

[0042] Furthermore, the driving member 232 includes a dial wheel 2321 having a rotation limiting slot 2322 therein. The housing 23 includes a rotation limiting ring 2311 that matches the rotation limiting slot 2322. The second limiting protrusion 233 is located on the sidewall of the rotation limiting slot 2322, and the first limiting protrusion 231 is located on the outer wall of the rotation limiting ring 2311. When the dial wheel 2321 is driven from outside the main body 11 of the focus handle 1, the second limiting protrusion 233 rotates relative to the first limiting protrusion 231. The limiting ring 2311 and the rotation limiting slot 2322 cooperate to provide a position limit, thereby improving the stability of the structure.

[0043] Furthermore, a rotation shaft 236 is disposed within the rotation limit groove 2322, and the magnetic member 22 is disposed on the rotation shaft 236. A bearing 237 is disposed between the rotation shaft 236 and the rotation limit ring 2311. This configuration allows the dial 2321 to drive the magnetic member 22 to rotate, achieving synchronization between the movement of the magnetic member 22 and the second limit protrusion 233, thereby facilitating parameter identification and angle adjustment. The provision of the bearing 237 also improves the stability of the structure.

[0044] Further, see Figure 7 The multi-gear control structure 2 also includes a gear adjustment switch 238 and a sensor 239. The sensor 239 is electrically connected to the control circuit board 21 to form a detection module 3. The gear adjustment switch 238 includes a travel limiter 2381. The gear adjustment switch 238 can move relative to the sensor 239 and the toggle member 232, so that after the signal transmission of the sensor 239 is turned on or off, it will be fed back to the control circuit board 21, so that the control circuit board 21 can understand the current gear state of the toggle member 232. At the same time, when the toggle member 232 moves, the travel limiter 2381 can enter or exit the travel space 235 to adjust the active travel of the toggle member 232. The gear switching is realized through the cooperation between the sensor 239 and the travel limiter 2381.

[0045] In this embodiment, when the travel limit portion 2381 extends into the travel space 235, it can separate the travel space 235 into a first travel space 2351 and a second travel space 2352. The first limit protrusion 231 can be located in the first travel space 2351 or the second travel space 2352 to form different gears.

[0046] Specifically, the gear adjustment switch 238 can move up and down, and has two control positions for realizing gear switching, namely the first position and the second position; when the gear adjustment switch 238 moves to the first position, it can block the signal transmission of the sensor 239, and its stroke limit part 2381 will be out of the stroke space 235; when the gear adjustment switch 238 moves to the second position, it moves away from the sensor 239, the signal transmission of the sensor 239 is turned on, the stroke limit part 2381 enters the stroke space 235, and generates structural interference with the second limit protrusion 233, thereby limiting the movement of the second limit protrusion 233 in the stroke space 235, thereby realizing the adjustment of the movable stroke of the toggle member 232.

[0047] Furthermore, sensor 239 employs a through-beam photoelectric switch, a reflective photoelectric switch, or a proximity switch. Each of these through-beam photoelectric switch, reflective photoelectric switch, or proximity switch includes a transmitter and a receiver, with a gap provided between the transmitter and the receiver to form a signal transmission channel. When a foreign object enters the signal transmission channel, the signal transmission channel is blocked, thereby preventing signal transmission between the transmitter and the receiver. The control circuit board 21 can detect the signal transmission status of sensor 239, thereby determining the position of travel limiter 2381.

[0048] Furthermore, the gear adjustment switch 238 includes a gear adjustment member 2383 and a gear positioning member 2385, and the gear adjustment member 2383 moves relative to the sensor 239 and the toggle member 232; the gear adjustment member 2383 includes a signal blocking part 2382 and a gear positioning part 2384, and the stroke limit part 2381, the signal blocking part 2382, and the gear positioning part 2384 are fixedly connected; the signal blocking part 2382 can move relative to the signal transmission channel, and the gear adjustment member 2383 is exposed outside the shell 23.

[0049] In this embodiment, when the user uses the multi-position control structure 2 to adjust the lens parameters, the multi-position control structure 2 can be used to control three gears to achieve the switching of three movable strokes of the second limit protrusion 233, specifically:

[0050] See also Figure 8When the gear adjustment member 2383 moves to the first position, the signal blocking portion 2382 enters the signal transmission channel, blocking the signal transmission between the transmitting end and the receiving end of the sensor 239, so that the signal transmission of the sensor 239 is blocked. At this time, the travel limit portion 2381 will also be separated from the travel space 235, and the second limit protrusion 233 can move from one end of the first limit protrusion 231 to the other end of the first limit protrusion 231 without any hindrance. The second limit protrusion 233 has the maximum active stroke; at the software level, when the signal transmission channel is blocked, the single chip microcomputer can also obtain the status of the sensor 239, thereby knowing that the active stroke of the toggle member 232 is the maximum stroke at this time, and determining it as the first gear.

[0051] When the gear adjustment member 2383 moves to the second position, the signal blocking portion 2382 disengages from the signal transmission channel, and the signal transmission between the transmitting end and the receiving end of the sensor 239 is smooth, so that the signal transmission of the sensor 239 is turned on, and the single chip microcomputer can obtain the state of the sensor 239 and obtain the current angle of the dial 2321 with the help of the magnetic encoder 24; at this time, the travel limit portion 2381 will also enter the travel space 235, which can interfere with the movement of the second limit protrusion 233, thereby limiting the movable travel of the second limit protrusion 233 and preventing it from moving smoothly from one end of the first limit protrusion 231 to the other end of the first limit protrusion 231 to have an active travel of another gear. It should be noted that when the gear adjustment member 2383 moves to the second position, there are the following two situations:

[0052] 1. See Figure 9 When the gear adjustment member 2383 moves to the second position, the travel limit portion 2381 enters the travel space 235. At this time, if the second limit protrusion 233 is on the left side of the travel limit portion 2381, the second limit protrusion 233 can only move between the travel limit portion 2381 and the first limit protrusion 231 on the left side of the travel limit portion 2381. This is the second gear position.

[0053] 2. See Figure 10 When the gear adjustment member 2383 moves to the second position, the travel limit portion 2381 enters the travel space 235. At this time, if the second limit protrusion 233 is on the right side of the travel limit portion 2381, the second limit protrusion 233 can only move between the travel limit portion 2381 and the first limit protrusion 231 on the right side of the travel limit portion 2381. This is the third gear position.

[0054] It should be noted that, at the software level, the travel origin of the second limit protrusion 233 is calibrated, and the single-chip microcomputer can know the origin position of the second limit protrusion 233, and obtain the rotation angle of the second limit protrusion 233 through the magnetic encoder 24, and then obtain the rotation angle of the dial 2321; because the angle range of the position of the second limit protrusion 233 relative to the origin is different in the second gear and the third gear, and there is no intersection, so at this time the single-chip microcomputer can obtain which gear the dial 2321 is in through the real-time position of the second limit protrusion 233.

[0055] Further, see Figure 7 The gear adjustment member 2383 also includes a gear positioning portion 2384. The shell 23 has a movable groove 2312, and a gear positioning member 2385 is movably arranged in the movable groove 2312. The gear positioning member 2385 has two gear positioning areas 2386 that are compatible with the gear positioning portion 2384. The two gear positioning areas 2386 are connected up and down, and the gear positioning portion 2384 can be snapped into any one of the gear positioning areas 2386; when the gear adjustment member 2383 is active, it can trigger the gear positioning member 2385 to move, so that the gear positioning portion can switch between the two gear positioning areas 2386 to realize the positioning of the gear adjustment member 2383 under different gears. Specifically, when the gear adjustment member 2383 is in the first position, the gear adjustment member 2383 will move to the bottom, and the gear positioning portion 2384 will be engaged in the gear positioning area 2386 below; when the gear adjustment member 2383 is in the first position, the gear adjustment member 2383 will move to the top, and the gear positioning portion 2384 will be engaged in the gear positioning area 2386 above, thereby realizing the limiting and fixing of the gear adjustment member 2383 in three gear situations.

[0056] Furthermore, the gear positioning portion 2384 is an arc-shaped protrusion, and the gear positioning area 2386 is an arc-shaped groove that matches the arc-shaped protrusion. The arc-shaped structure cooperates to prevent the gear positioning portion 2384 from being completely stuck in the gear positioning area 2386, and the gear positioning portion 2384 can be easily switched between the two gear positioning areas 2386.

[0057] Furthermore, an elastic member is provided in the movable groove 2312 for resetting the gear positioning member 2385. One end of the elastic member abuts or connects to the side wall of the movable groove 2312, and the other end abuts or connects to the gear positioning member 2385. When the gear adjustment member 2383 is moved up and down to switch the gear positioning area 2386, the gear positioning member 2385 moves in the movable groove 2312 under the triggering of the gear adjustment member 2383. The elastic member can assist the gear positioning member 2385 in resetting by elastic drive, thereby achieving a tight engagement between the gear positioning portion 2384 and the gear positioning area 2386.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-gear control structure, characterized in that: include: The housing (23) has a first limiting protrusion (231); A toggle member (232), the toggle member (232) is rotatably connected to the housing (23) and has a second limiting protrusion (233); a travel space (235) is provided between the housing (23) and the toggle member (232), and the first limiting protrusion (231) and the second limiting protrusion (233) are both located in the travel space (235); A gear adjustment switch (238) is provided on the housing (23) and has a travel limit portion (2381), wherein the travel limit portion (2381) is movable in and out of the travel space (235); the gear adjustment switch (238) is movable relative to the housing (23) so that the travel limit portion (2381) enters or exits the travel space (235), thereby adjusting the movable travel of the toggle member (232).

2. The multi-gear control structure according to claim 1, characterized in that: When the travel limit portion (2381) extends into the travel space (235), the travel space (235) can be divided into a first travel space (2351) and a second travel space (2352), and the second limit protrusion (233) can be located in the first travel space (2351) or the second travel space (2352) to form different gears.

3. A multi-gear control structure according to claim 2, characterized in that: The device further comprises a detection module (3), wherein the detection module (3) comprises a control circuit board (21) and a sensor (239), wherein the sensor (239) is electrically connected to the control circuit board (21), and when the gear adjustment switch (238) moves to a first position, signal transmission of the sensor (239) is blocked, and when the gear adjustment switch (238) moves to a second position, signal transmission of the sensor (239) is turned on.

4. A multi-gear control structure according to claim 3, characterized in that: The gear adjustment switch (238) further includes a signal blocking portion (2382), the sensor (239) has a signal transmission channel, and the signal blocking portion (2382) can move relative to the signal transmission channel; when the gear adjustment switch (238) moves to the first position, the signal blocking portion (2382) enters the signal transmission channel, so that the signal transmission of the sensor (239) is blocked; when the gear adjustment switch (238) moves to the second position, the signal blocking portion (2382) disengages from the signal transmission channel, so that the signal transmission of the sensor (239) is turned on.

5. A multi-gear control structure according to any one of claims 1 to 4, characterized in that: The gear adjustment switch (238) includes a gear adjustment member (2383) and a gear positioning member (2385), the travel limit portion (2381) is arranged on the gear adjustment member (2383), the gear positioning member (2385) has a plurality of gear positioning areas (2386), and the gear adjustment member (2383) includes a gear positioning portion (2384), and the gear positioning portion (2384) can switch within the plurality of gear positioning areas (2386) and be locked with one of the gear positioning areas (2386), so that the gear adjustment member (2383) can achieve the adjustment of multiple gears.

6. The multi-gear control structure according to claim 5, characterized in that: The gear positioning member (2385) is elastically connected to the housing (23), so that the gear positioning member (2385) can move relative to the housing (23), facilitating the gear positioning portion (2384) to switch within the plurality of gear positioning areas (2386).

7. The multi-gear control structure according to claim 5, characterized in that: The gear position positioning portion (2384) is an arc-shaped protrusion, and the gear position positioning area (2386) is an arc-shaped groove adapted to the arc-shaped protrusion.

8. The multi-gear control structure according to claim 5, characterized in that: The housing (23) has a movable groove (2312), the gear positioning member (2385) is movably arranged in the movable groove (2312), and a reset elastic member is arranged in the movable groove (2312), one end of the reset elastic member is abutted against or connected to the side wall of the movable groove (2312), and the other end is abutted against or connected to the gear positioning member (2385).

9. The multi-gear control structure according to claim 3, characterized in that: The toggle member (232) includes a dial wheel (2321), a rotation limiting groove (2322) is provided in the dial wheel (2321), the housing (23) has a rotation limiting ring (2311) adapted to the rotation limiting groove (2322), the first limiting protrusion (231) is located on the side wall of the rotation limiting groove (2322), and the second limiting protrusion (233) is located on the outer wall of the rotation limiting ring (2311).

10. The multi-gear control structure according to claim 9, characterized in that: The invention also includes a magnetic component (22), wherein the control circuit board (21) is fixed to the housing (23), the magnetic component (22) is fixed to the toggle component (232), and a magnetic encoder (24) is provided on the control circuit board (21) and matches the magnetic component (22), and the magnetic encoder (24) is arranged relative to the magnetic component (22).

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