Three-dimensional adjustment photographic tripod head

Abstract

The utility model discloses three -dimensional adjustment photography cloud platform, including horizontal rotation subassembly, angle adjusting subassembly and pitch adjusting subassembly, the horizontal rotation subassembly includes horizontal rotation base and horizontal rotation platform, the horizontal rotation base is rotatablely connected with horizontal rotation platform through vertical shaft, the horizontal rotation base is equipped with the first locking mechanism of locking horizontal rotation platform, the angle adjusting subassembly includes fine adjustment base and fine adjustment platform, fine adjustment base is rotatablely connected with fine adjustment platform through arc guiding deputy sliding, fine adjustment base is equipped with the worm and worm wheel mechanism of drive fine adjustment platform along arc guiding deputy sliding, the pitch adjusting subassembly includes pitch base and pitch platform, the pitch base is rotatablely connected with pitch platform through the hollow shaft of horizontal arrangement, the pitch base is equipped with the second locking mechanism of locking pitch platform, fine adjustment base with horizontal rotation platform fixed connection, the pitch base with fine adjustment platform fixed connection.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment technology, specifically to a three-dimensional adjustable photographic gimbal. Background Technology

[0002] In professional photography, especially in landscape, architectural, and commercial still life shooting, photographers need to use tripod heads for precise camera angle positioning. The performance of the tripod head directly determines the efficiency of composition and shooting accuracy. Traditional 3D tripod heads typically use three mutually perpendicular worm gear mechanisms to control the azimuth, pitch, and roll dimensions respectively. While this structure allows for high-precision unidirectional adjustment and reliable locking, the adjustment process is cumbersome and slow. For example, when composing a pitch shot, the photographer must repeatedly turn the fine-tuning knob, making rapid perspective changes impossible, greatly limiting creative fluidity and making it difficult to capture dynamic light or fleeting elements in the frame. Utility Model Content

[0003] To address the technical problem that existing gimbals cannot achieve rapid perspective changes, this invention proposes a three-dimensional adjustable photography gimbal. It connects three functional modules—a horizontal rotation component, an angle adjustment component, and a pitch adjustment component—from bottom to top, allowing photographers to quickly unlock and adjust the pitch with the same hand while holding the camera. The worm gear mechanism of the angle fine-tuning module has a self-locking characteristic, maintaining a stable position without additional locking, thus enabling rapid perspective changes and ensuring smooth creative processes.

[0004] The technical solution adopted by this utility model is as follows: A three-dimensional adjustable photographic gimbal includes a horizontal rotation component, an angle adjustment component, and a pitch adjustment component. The horizontal rotation component includes a horizontal rotation base and a horizontal rotation platform. The horizontal rotation base and the horizontal rotation platform are rotatably connected via a vertical axis. The horizontal rotation base is provided with a first locking mechanism for locking the horizontal rotation platform. The angle adjustment component includes a fine-tuning base and a fine-tuning platform. The fine-tuning base and the fine-tuning platform are slidably connected via an arc-shaped guide pair. The fine-tuning base is provided with a worm gear mechanism for driving the fine-tuning platform to slide along the arc-shaped guide pair. The pitch adjustment component includes a pitch base and a pitch platform. The pitch base and the pitch platform are rotatably connected via a horizontally arranged hollow shaft. The pitch base is provided with a second locking mechanism for locking the pitch platform. The axial direction of the hollow shaft is parallel to the adjustment direction of the angle adjustment component. The fine-tuning base is fixedly connected to the horizontal rotation platform, and the pitch base is fixedly connected to the fine-tuning platform.

[0005] Optionally, the first locking mechanism includes a screw passing through the side wall of the horizontal rotating base, a first knob fixedly connected to one end of the screw, and a brake pad housed within the horizontal rotating base and movable along the screw axis. The other end of the screw movably abuts against the brake pad. When the first knob is rotated to drive the screw to move axially, the screw pushes the brake pad to press against the side wall of the horizontal rotating platform. When the first knob is rotated in the opposite direction to retract the screw, the brake pad separates from the horizontal rotating platform.

[0006] Optionally, the arc-shaped guide pair includes an arc-shaped groove disposed on the fine-tuning base, and the bottom surface of the fine-tuning platform is provided with an arc-shaped guide rail that matches the arc-shaped groove.

[0007] Optionally, the worm gear mechanism includes a sector worm wheel and a worm meshing with the sector worm wheel. The worm is fixedly connected to a second knob, and the sector worm wheel is fixedly connected to the fine-tuning platform. When the second knob is rotated, the worm drives the sector worm wheel, and the fine-tuning platform slides along the arc-shaped groove. The axial direction of the worm is parallel to the axial direction of the hollow shaft.

[0008] Optionally, the second locking mechanism is disposed inside the hollow shaft. The second locking mechanism includes a pull rod, a conical plug, and a wedge. One end of the pull rod extends out of the hollow shaft and is rotatably connected to a third knob. The other end of the pull rod is fixed to the conical plug. One side of the wedge is fixedly connected to the hollow shaft, and the other side of the wedge is provided with an inclined surface that matches the conical surface of the conical plug. The pitch base is rotatably sleeved on the outer peripheral wall of the hollow shaft, and the pitch platform is fixedly connected to the hollow shaft.

[0009] Optionally, the hollow shaft is provided with a mounting groove, and the wedge is provided with a mounting block that cooperates with the mounting groove and moves radially along the mounting groove. The mounting block movably abuts against the inner wall of the pitch base.

[0010] Optionally, the pitch platform and the pitch base are each equipped with a level.

[0011] Optionally, the number of angle adjustment components is two sets, arranged from top to bottom. The axial direction of the worm gear in one set of angle adjustment components is parallel to the axial direction of the hollow shaft, and the axial direction of the worm gear in this set of angle adjustment components is spatially perpendicular to the axial direction of the worm gear in the other set of angle adjustment components.

[0012] The beneficial effects of this utility model are: (1) The three functional modules of horizontal rotation component, angle adjustment component and pitch adjustment component are connected from bottom to top. The horizontal calibration function that requires high precision but does not need to be adjusted frequently is handed over to the angle adjustment component, while the pitch function that requires frequent and rapid adjustment is separated into the pitch adjustment component. This makes it convenient for photographers to quickly unlock and adjust the pitch with the same hand while holding the camera. The operation path is short. After leveling, the worm gear mechanism of the angle fine adjustment module has a self-locking characteristic. It can maintain the position stably without additional locking, realizing rapid perspective change and ensuring smooth creation.

[0013] (2) The adjustment direction of the angle adjustment component, that is, the direction of the rotation of the fine adjustment platform around the rotation center of the arc guide pair, is parallel to the axis of the hollow shaft of the pitch adjustment component. This means that the angle adjustment component can perform high-precision fine compensation adjustment of the pitch angle in its dimension. Users can first use the pitch adjustment component to make rapid and wide-range perspective changes to capture the instantaneous image, and then use the angle adjustment component in the same dimension to make high-precision fine adjustments driven by the worm gear to achieve accurate positioning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the three-dimensional adjustable photographic gimbal proposed in an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the first locking mechanism of the three-dimensional adjustable camera gimbal proposed in an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the worm gear mechanism of the three-dimensional adjustable camera gimbal proposed in an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the fine-tuning base of the three-dimensional adjustable camera gimbal proposed in an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the fine-tuning platform of the three-dimensional adjustable camera gimbal proposed in an embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of the second locking mechanism of the three-dimensional adjustable camera gimbal proposed in an embodiment of this utility model.

[0020] The labels in the attached figures are as follows: 100, horizontal rotation assembly; 101, horizontal rotation base; 102, horizontal rotation platform; 103, vertical axis; 104, screw; 105, first knob; 106, brake pad; 200, angle adjustment assembly; 201, fine-tuning base; 202, fine-tuning platform; 203, arc-shaped slide; 204, arc-shaped guide rail; 205, sector-shaped worm gear; 206, worm; 207, second knob; 300, pitch adjustment assembly; 301, pitch base; 302, pitch platform; 303, hollow shaft; 3031, mounting slot; 304, pull rod; 305, third knob; 306, conical plug; 307, wedge; 400, level. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 6 As shown, this embodiment discloses a three-dimensional adjustable camera gimbal, which is composed of a horizontal rotation component 100, an angle adjustment component 200, and a pitch adjustment component 300 connected from bottom to top. The horizontal rotation component 100 includes a horizontal rotation base 101 and a horizontal rotation platform 102, which achieve relative rotation through a precision bearing and a vertical axis 103. The first locking mechanism includes a screw 104, a first knob 105, and a brake pad 106. The screw 104 passes through a screw hole in the side wall of the horizontal rotation base 101. One end of the screw 104 is fixed to the first knob 105, and the other end movably abuts against the brake pad 106 housed in the base. The screw 104 and the screw hole in the side wall of the horizontal rotation base 101 are threaded together. When the first knob 105, which is fixedly connected to the screw 104, is rotated, the screw 104 moves axially due to the side effect of the thread, thereby pushing the brake pad 106. Inside the horizontal rotating base 101, a specially machined receiving groove is provided to match the shape of the brake pad 106. A small clearance is maintained between the receiving groove and the brake pad 106. This clearance ensures smooth axial sliding of the brake pad while preventing excessive play that could cause shaking or abnormal noise. The brake pad 106 is made of copper-based powder metallurgy material, possessing a stable coefficient of friction and wear resistance. Tightening the first knob 105 clockwise pushes the screw 104 to press the brake pad 106 against the side wall of the horizontal rotating platform 102, generating friction to lock it in place. Loosening it counterclockwise separates the brake pad 106 from the platform, allowing it to rotate freely for orientation adjustment. The bottom of the horizontal rotating base 101 has a threaded hole for connecting a tripod.

[0023] See Figure 3-5The angle adjustment assembly 200 includes a fine-tuning base 201 and a fine-tuning platform 202. The fine-tuning base 201 has an arc-shaped groove 203 machined on it, and the bottom surface of the fine-tuning platform 202 has an arc-shaped guide rail 204 that matches the arc-shaped groove 203. The worm gear mechanism includes a sector worm wheel 205, a worm 206, and a second knob 207. The sector worm wheel 205 is fixed to the fine-tuning platform 202 with screws. One or more bearing seats are provided on the fine-tuning base 201, in which rolling bearings or sliding bearings are installed. The journals at both ends of the worm 206 are supported in the inner holes of these bearings. One end of the journal of the worm 206 passes through the bearing on the fine-tuning base 201 and extends out to be fixedly connected to the second knob 207. The fixing method can be a keyway or screws. When the second knob 207 is rotated, the worm gear 206 drives the sector worm wheel 205 to rotate. Due to the constraint of the arc-shaped guide rail 204 and the slide groove 203, the fine-tuning platform 202 slides relative to the fine-tuning base 201 along an arc-shaped trajectory, achieving high-precision angle fine-tuning. The fine-tuning base 201 is fixedly connected to the horizontal rotating platform 102 below by multiple bolts. The adjustment direction of the angle adjustment component 200, that is, the direction in which the fine-tuning platform 202 rotates around the rotation center of the arc-shaped guide pair, is parallel to the axial direction of the hollow shaft 303 in the pitch adjustment component 300. This means that the angle adjustment component 200 can perform high-precision fine compensation adjustment of the pitch angle in its own dimension.

[0024] See Figure 1 and 6The pitch adjustment assembly 300 includes a pitch base 301 and a pitch platform 302. The pitch base 301 is rotatably fitted onto the outer peripheral wall of the hollow shaft 303 via a pair of angular contact bearings. The pitch platform 302 is connected and fixed to the hollow shaft 303 via a keyway. A second locking mechanism is disposed inside the hollow shaft 303 and includes a pull rod 304, a third knob 305, a conical plug 306, and a wedge 307. One end of the pull rod 304 is machined with an external thread, which mates with the internal thread of the third knob 305 at that end to form a threaded transmission pair. The other end of the pull rod 304 is fixed with the conical plug 306. The side wall of the hollow shaft 303 has a mounting groove 3031, and the wedge 307 is detachably engaged in the mounting groove via a mounting block on it, allowing it to slide radially. The top surface of the wedge 307 is machined with a 45-degree bevel that mates with the conical plug 306. A retaining ring groove (not shown in the figure) is machined on the outer circle of one end of the hollow shaft. An elastic retaining ring is placed in the retaining ring groove. An inner step is provided in the inner hole of the third knob. After assembly, the inner step is locked from the outside by the elastic retaining ring, thereby preventing the third knob from falling outward. The inward movement of the third knob is restricted by a shoulder on the hollow shaft, thereby restricting the axial movement of the third knob. The pull rod 304 is restricted by the inclined surface cooperation between the conical plug 306 and the wedge block 307 and cannot rotate. Therefore, through the threaded transmission, the pull rod 304 is pulled backward, driving the conical plug 306 to move backward. Its conical surface presses against the inclined surface of the wedge block 307. As the contact area between the conical surface and the inclined surface increases, the wedge block 307 is forced to extend radially outward, pressing against the inner hole wall of the pitch base 301 to achieve locking. The cone angle of the conical surface of the conical plug 306 is designed to be 45°, which is a non-locking inclined surface. When the third knob 305 is rotated in the opposite direction, the pull rod 304 is pushed forward, which drives the conical plug 306 to move forward and release the pressure on the wedge block 307. At this time, when the user tries to rotate the camera, a small sliding friction force will be generated between the inner wall of the pitch base 301 and the surface of the wedge block 307 that has not been fully reset. Since the cone angle (45°) of the conical plug is much larger than the friction angle, this small friction force will generate a component force pointing towards the inclined surface on the wedge block. Once there is a tendency to rotate, the wedge block will immediately retract completely, realizing smooth rotation with zero friction. This allows the pitch platform 302 to rotate relative to the pitch base 301 which is fixed to the fine adjustment platform 202, thereby realizing pitch angle adjustment. The axial direction of the worm gear 206 is parallel to the axial direction of the hollow shaft 303, ensuring that the fine-tuning input of the angle adjustment component 200, i.e., the action of rotating the second knob 207, is completely aligned in space with the coarse-tuning dimension of the pitch adjustment component 300, i.e., the rotation around the hollow shaft 303, providing users with an intuitive and coordinated operating experience.

[0025] Furthermore, a high-precision bubble level 400 is embedded in the pitch platform 302 and the pitch base 301 respectively, with an accuracy of ±0.5 degrees, to assist in judging the camera attitude.

[0026] Furthermore, the angle adjustment components can be stacked into two sets, with the fine-tuning base 201 of the upper set fixed to the fine-tuning platform 202 of the lower set. The worm gear axis of the lower set of angle adjustment components 200 is parallel to the axis of the hollow shaft 303, specifically for fine adjustment of the pitch angle; while the worm gear axis of the upper set of angle adjustment components 200 is perpendicular to the lower set, used for fine adjustment of the roll angle. The lower set of angle adjustment components is used for fine adjustment of the pitch angle, and the upper set is used for fine adjustment of the roll angle, together achieving precise leveling in all directions. In use, first mount the gimbal to the tripod through the screw holes at the bottom of the horizontal rotating base 101, and mount the camera on the pitch platform 302. Loosen the first knob 105, manually rotate the entire upper part of the gimbal to the target position, and then lock the first knob 105. Observe the level indicator, rotate the second knob of the next set of angle adjustment components 200 to adjust the roll angle, and then rotate the second knob of the previous set of angle adjustment components 200 to adjust the pitch angle until the camera is completely level. Release the third knob 305 and manually push the camera to make a quick rough pitch adjustment to achieve the approximate composition; after locking the third knob 305, if fine adjustments to the composition are needed, the second knob of the next set of angle adjustment components 200 can be finely adjusted.

[0027] It is understood that the specific embodiments described above are merely for explaining the relevant utility model and not for limiting the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict with each other. All equivalent structural transformations made based on the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly included within the protection scope of this utility model.

Claims

1. A three-dimensional adjustable camera gimbal, characterized in that, Includes a horizontal rotation component, an angle adjustment component, and a pitch adjustment component. The horizontal rotation assembly includes a horizontal rotation base and a horizontal rotation platform. The horizontal rotation base and the horizontal rotation platform are rotatably connected via a vertical axis. The horizontal rotation base is provided with a first locking mechanism for locking the horizontal rotation platform. The angle adjustment component includes a fine-tuning base and a fine-tuning platform. The fine-tuning base and the fine-tuning platform are slidably connected by an arc-shaped guide pair. The fine-tuning base is provided with a worm gear mechanism that drives the fine-tuning platform to slide along the arc-shaped guide pair. The pitch adjustment assembly includes a pitch base and a pitch platform. The pitch base and the pitch platform are rotatably connected by a horizontally arranged hollow shaft. The pitch base is provided with a second locking mechanism to lock the pitch platform. The axial direction of the hollow shaft is parallel to the adjustment direction of the angle adjustment assembly. The fine-tuning base is fixedly connected to the horizontal rotation platform, and the pitch base is fixedly connected to the fine-tuning platform.

2. The three-dimensional adjustable camera gimbal according to claim 1, characterized in that, The first locking mechanism includes a screw passing through the side wall of the horizontal rotating base, a first knob fixedly connected to one end of the screw, and a brake pad housed in the horizontal rotating base and movable along the screw axis. The other end of the screw movably abuts against the brake pad. When the first knob is rotated to drive the screw to move axially, the screw pushes the brake pad to press against the side wall of the horizontal rotating platform. When the first knob is rotated in the opposite direction to retract the screw, the brake pad separates from the horizontal rotating platform.

3. The three-dimensional adjustable camera gimbal according to claim 1, characterized in that, The arc-shaped guide pair includes an arc-shaped slide groove disposed on the fine-tuning base, and the bottom surface of the fine-tuning platform is provided with an arc-shaped guide rail that matches the arc-shaped slide groove.

4. The three-dimensional adjustable camera gimbal according to claim 3, characterized in that, The worm gear mechanism includes a sector worm wheel and a worm meshing with the sector worm wheel. The worm is fixedly connected to a second knob. The sector worm wheel is fixedly connected to the fine-tuning platform. When the second knob is rotated, the worm drives the sector worm wheel, and the fine-tuning platform slides along the arc-shaped groove. The axial direction of the worm is parallel to the axial direction of the hollow shaft.

5. The three-dimensional adjustable camera gimbal according to claim 1, characterized in that, The second locking mechanism is located inside the hollow shaft. The second locking mechanism includes a pull rod, a conical plug, and a wedge. One end of the pull rod extends out of the hollow shaft and is rotatably connected to a third knob. The other end of the pull rod is fixed to the conical plug. One side of the wedge is fixedly connected to the hollow shaft, and the other side of the wedge has an inclined surface that matches the conical surface of the conical plug. The pitch base is rotatably sleeved on the outer peripheral wall of the hollow shaft, and the pitch platform is fixedly connected to the hollow shaft.

6. The three-dimensional adjustable camera gimbal according to claim 5, characterized in that, The hollow shaft is provided with a mounting groove, and the wedge is provided with a mounting block that cooperates with the mounting groove and moves radially along the mounting groove. The mounting block movably abuts against the inner wall of the pitch base.

7. The three-dimensional adjustable camera gimbal according to claim 1, characterized in that, The pitch platform and pitch base are each equipped with a level.

8. The three-dimensional adjustable camera gimbal according to claim 4, characterized in that, The angle adjustment components are arranged in two sets, from top to bottom. In one set, the worm gear axis is parallel to the hollow shaft axis, and the worm gear axis of this set is spatially perpendicular to the worm gear axis of the other set.

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