Gear holder with hemispherical structure

Abstract

The utility model relates to the technical field of auxiliary photographic devices, in particular to a gear holder with a hemispherical structure, which comprises a holder base, a holder center shaft and a worm gear adjusting mechanism, the holder center shaft is provided with an accommodating cavity, a hemispherical seat is inserted in the accommodating cavity, the hemispherical seat is provided with a semi-concave ball groove, the gear holder further comprises a hemisphere and a clamping seat, the hemisphere extends into the semi-concave ball groove, and the worm gear adjusting mechanism is arranged on the clamping seat. The shooting angle of the photographic equipment is adjusted by driving the hemisphere to swing in the hemisphere base, compared with a swing adjusting mechanism in the prior art, the center of gravity of the photographic equipment can be lowered, the shooting process is more stable and safer, the overall size of the holder is reduced, and storage and carrying are facilitated; the hemisphere of the holder can swing like a tumbler in the hemisphere seat, so that the camera can be adjusted to be horizontal within a certain range or the shooting angle of the camera can be adjusted through rapid rotation, and the holder is outstanding in convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary photography devices, in particular to a gear head with a hemispherical structure. Background Art

[0002] A pan head is a commonly used auxiliary photographic device for photographers. Most gear pan heads on the market are similar to the gear pan head structure disclosed in the Chinese patent document with publication number CN207179090U. The bottom of the clamp is vertically connected to a quick-release plate connector. By driving the quick-release plate connector to swing on a vertical plane with its bottom as the rotation center, the camera angle of the photographic equipment installed on the clamp can be adjusted.

[0003] However, to prevent the quick-release plate connector from colliding with the gimbal base during swinging, the geared gimbals on the market usually have a long quick-release plate connector. This results in the clamp being installed high up, making its center of gravity unstable and its bulky size inconvenient to carry.

[0004] Secondly, the swing of the quick-release plate connector is achieved through the cooperation of a worm gear, and this structure can only adjust the angle of the camera on one plane, which is not conducive to quickly adjusting the shooting angle and has certain limitations;

[0005] In addition, in some geared gimbals that can be rotated to adjust the angle immediately after unlocking, since there is no resistance at the center of rotation, you need to hold the photographic equipment with your hand to adjust it during rotation. If you are not careful, the photographic equipment may easily "nod" under the action of gravity, and there is a risk of the camera being damaged. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a hemispherical gear pan head, which has a low center of gravity, a small size and can quickly and stably adjust the angle of the photographic equipment in multiple dimensions to solve the technical problems described in the background technology.

[0007] The utility model is achieved through the following technical solutions:

[0008] A hemispherical gear pan / tilt head comprises a pan / tilt head base and a pan / tilt head central axis connected to the pan / tilt head base, wherein the pan / tilt head base is provided with a worm gear adjustment mechanism for driving the pan / tilt head central axis to perform pitching and swinging;

[0009] The top of the center axis of the pan / tilt head is provided with a receiving cavity with an opening facing upwards, a hemispherical seat is vertically inserted into the opening of the receiving cavity, and the top of the hemispherical seat is provided with a semi-concave ball groove;

[0010] It also includes a clamping seat with a hemisphere fixedly connected to the bottom, the hemisphere extends into the semi-concave ball groove, and the outer spherical surface of the hemisphere fits with the groove wall of the semi-concave ball groove.

[0011] Furthermore, the interior of the hemispherical body has an installation space, a spherical gasket is coupled and arranged in the installation space, and the installation space and the bottom of the hemispherical seat are respectively provided with through holes extending therethrough.

[0012] A connecting column is integrally formed at the center of the bottom wall of the accommodating cavity, and the top of the connecting column passes through the two through holes in sequence and extends into the spherical gasket;

[0013] The threaded connection at the top of the connecting column is used to vertically connect the spherical gasket, the hemisphere, the hemispherical seat and the central axis of the gimbal into one connecting screw.

[0014] Furthermore, a mounting groove A is provided on the bottom end surface of the hemispherical seat, an upper plane push block is inserted into the mounting groove A, and a lower plane push block is installed below the upper plane push block;

[0015] A plurality of sloped protrusions are integrally formed on the opposite surfaces of the two planar push blocks, and matching grooves matching the shapes of the protrusions are formed between two adjacent protrusions located on the same water surface.

[0016] Furthermore, a plurality of mounting holes connected to the mounting groove A are vertically opened on the hemispherical seat, a spring is vertically fixedly connected in each mounting hole, and a positioning bead is fixedly connected to one end of the spring facing the outlet of the mounting hole;

[0017] The end surface of the upper plane push block is provided with a number of through holes corresponding to the number of the positioning beads, and the top surface of the lower plane push block is provided with a number of positioning holes. The positioning beads partially pass through the through holes and extend into the positioning holes under the action of the spring.

[0018] Furthermore, the side wall of the accommodating cavity protrudes in the center to form a clamping block, and the outer surface of the hemispherical seat has a clamping groove that cooperates with the clamping block to limit the horizontal rotation of the hemispherical seat.

[0019] Furthermore, a plurality of insertion holes are vertically opened on the bottom wall of the installation slot A, and a plurality of insertion rods are fixedly connected to the upper plane push block and cooperate with the insertion holes to limit the horizontal rotation of the upper plane push block.

[0020] Furthermore, an active space is formed between two adjacent clamping blocks, and a stop block is integrally formed on the lower plane pushing block for cooperating with the active space to limit the rotation range of the lower plane pushing block.

[0021] Furthermore, a mounting groove B is installed at the bottom of the lower planar push block, and a planar thrust bearing is installed between the mounting groove B and the bottom wall of the accommodating cavity.

[0022] Furthermore, a notch is provided on the circumferential surface of the lower plane push block, and a radial avoidance groove connected to the accommodating cavity is provided on the surface of the central axis of the gimbal. An adjustment lever is fixedly connected in the notch, and the other end of the adjustment lever extends outward through the avoidance groove.

[0023] Furthermore, a connecting portion B is integrally formed in the notch, and the adjustment lever includes a connecting portion A fixedly connected to the connecting portion B, and an operating portion is integrally formed at the other end of the connecting portion A.

[0024] The beneficial effects of the present invention are:

[0025] 1. The hemisphere extends into the semi-concave groove, and the shooting angle of the photographic device is adjusted by driving the hemisphere to swing in the hemisphere seat. Compared with the swing adjustment mechanism in the prior art, the utility model can lower the center of gravity of the photographic device, making the shooting process more stable and safe, and reducing the overall size of the pan / tilt head, which is convenient for storage and portability.

[0026] Secondly, compared with the swing adjustment mechanism in the prior art which can only swing on one plane to adjust the angle, the hemispherical body of the pan / tilt head of the present invention can make a swinging motion similar to a "tumbler" in the hemispherical seat, and can then swing or rotate within a certain range to quickly adjust the shooting angle of the photographic equipment, and the adjustment range is wider.

[0027] 2. The hemispherical seat, the hemispherical body and the spherical gasket are connected as one by cooperating with the connecting screw and the connecting column. At this time, there is a damping force between the hemispherical body and the hemispherical seat, and between the hemispherical body and the spherical gasket, which prevents the clamp from "nodding" under the action of the gravity of the camera after the pressing force of the hemispherical seat is reduced, thereby reducing the risk of damage to the photographic equipment.

[0028] 3. The hemispherical seat and the hemispherical body can be locked or unlocked by horizontally moving the adjusting lever to rotate the lower plane block, which is more convenient to operate.

[0029] Secondly, when the lower plane push block is rotating, the positioning bead cooperates with the positioning hole to prompt the rotation angle of the lower plane push block, and can also limit the free rotation of the lower plane push block. The angle of the lower plane push block can be rotated as needed to adjust the pressing force of the hemispherical seat on the hemisphere, thereby adjusting the damping force, so as to smoothly move the hemisphere to adjust the shooting angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the hemispherical gear pan head of the utility model.

[0031] Figure 2This is an exploded view of the hemispherical gear pan head of the present invention.

[0032] Figure 3 This is a cross-sectional view of the center axis of the hemispherical gear pan head of the present invention.

[0033] Figure 4 This is a structural schematic diagram of the center axis of the hemispherical gear pan head of the utility model.

[0034] Figure 5 This is an exploded view of the hemispherical seat, upper plane push block and lower plane push block of the hemispherical gear pan head of the utility model.

[0035] Figure 6 This is an exploded view of the lower plane push block and adjustment lever of the hemispherical gear pan head of the utility model.

[0036] In the figure: 1-pan head base, 2-pan head axis, 3-worm gear adjustment mechanism, 4-accommodating chamber, 5-hemispherical seat, 6-semi-concave ball groove, 7-clamp seat, 8-hemispherical body, 9-installation space, 10-spherical gasket, 11-opening, 12-connecting column, 13-connecting screw, 14-installation slot A, 15-upper plane push block, 16-lower plane push block, 17-bump, 18-matching groove, 19-installation hole, 20-spring, 21-positioning bead, 22-through hole, 23-positioning hole, 24-block, 25-slot, 26-jack, 27-insertion rod, 28-activity space, 29-stop block, 30-installation slot B, 31-plane thrust bearing, 32-notch, 33-adjustment lever, 331-connection part A, 332-operation part, 34-avoidance groove, 35-connection part B. DETAILED DESCRIPTION

[0037] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and are not intended to limit the present invention.

[0038] In the description of this application, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0039] See also Figures 1 to 4The utility model provides a technical solution: a hemispherical gear pan-tilt head, comprising a pan-tilt head base 1 which is concave as a whole, and a pan-tilt head axis 2 which is rotatably mounted in the concave groove of the pan-tilt head base 1. The pan-tilt head base 1 is provided with a worm gear adjustment mechanism 3 for driving the pan-tilt head axis 2 to pitch and swing. The worm gear adjustment mechanism 3 can adopt the worm gear adjustment structure in the gear pan-tilt head with the publication number CN207179090U in the prior art. By rotating the worm gear, the worm gear can be driven to rotate, thereby driving the pan-tilt head axis 2 and the pan-tilt head base 1 to rotate relative to each other to adjust the angle. The specific structure and working principle are prior art, and will not be described in detail here.

[0040] The top of the pan / tilt center axis 2 has an accommodating cavity 4 with an opening 11 facing upwards, a hemispherical seat 5 is vertically inserted into the opening 11 of the accommodating cavity 4, and the top of the hemispherical seat 5 has a semi-concave ball groove 6;

[0041] The device further comprises a clamping seat 7 having a hemispherical body 8 fixedly connected to the bottom thereof, and the clamping seat 7 is used for mounting photographic equipment; the hemispherical body 8 extends into the semi-concave ball groove 6, and the outer spherical surface of the hemispherical body 8 abuts against the groove wall of the semi-concave ball groove 6. By driving the hemispherical body 8 to swing in the hemispherical seat 5, the shooting angle of the photographic equipment can be adjusted. Compared with the swing adjustment mechanism in the prior art, the present invention can lower the center of gravity of the photographic equipment, making the shooting process more stable and safe, and reducing the overall volume of the pan / tilt head, which is convenient for storage and portability.

[0042] Secondly, compared with the swing adjustment mechanism in the prior art which can only swing on one plane to adjust the angle, the hemispherical body 8 of the pan / tilt head of the present invention can make a swinging motion similar to a "tumbler" in the hemispherical seat 5, and can then swing or rotate within a certain range to quickly adjust the shooting angle of the photographic equipment, and the adjustment range is wider.

[0043] See also Figures 2 to 4 The hemispherical body 8 is thin-walled and has a hemispherical installation space 9 inside. A spherical gasket 10 is coupled to the installation space 9. A through hole 11 is provided in the installation space 9 and the bottom of the hemispherical seat 5.

[0044] A connecting post 12 is integrally formed at the center of the bottom wall of the accommodating cavity 4. The top of the connecting post 12 passes through the two through holes 11 in sequence and extends into the spherical gasket 10. The through hole 11 at the bottom of the installation space 9 is larger than the through hole 11 at the bottom of the hemispherical seat 5, providing space for the hemispherical body 8 to swing around the connecting post 12.

[0045] The top of the connecting column 12 is threadedly connected to a connecting screw 13 for vertically connecting the spherical gasket 10, the hemisphere 8, the hemispherical seat 5 and the gimbal center axis 2. By screwing the connecting screw 13, the damping force between the spherical gasket 10, the hemisphere 8 and the hemispherical seat 5 in the initial state can be adjusted.

[0046] See also Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The bottom end surface of the hemispherical seat 5 is provided with a mounting groove A14, in which an upper plane push block 15 is inserted, and a lower plane push block 16 is installed below the upper plane push block 15. The two plane push blocks are both mounted on the outside of the connecting column 12, and the opposite surfaces of the two plane push blocks are respectively integrally formed with a plurality of sloped protrusions 17. A matching groove 18 adapted to the shape of the protrusion 17 is formed between two adjacent protrusions 17 located on the same water surface. Specifically:

[0047] When the lower plane push block 16 rotates so that the protrusion 17 thereon extends into the matching groove 18 of the upper plane push block 15 and completely overlaps with it, the distance between the upper plane push block 15 and the lower plane push block 16 is minimized, and they are spliced ​​to form a cylindrical structure. At this time, the hemisphere 8 is in an unlocked state; when the lower plane push block 16 rotates so that the protrusion 17 thereon disengages from the matching groove 18 above, the distance between the upper plane push block 15 and the lower plane push block 16 changes accordingly. At this time, the lower plane push block 16 can push the hemispherical seat 5 to abut against the hemisphere 8 through the upper plane push block 15, lock the hemisphere 8, and fix the shooting angle of the rear photographic equipment.

[0048] See also Figure 2 、 Figure 4 、 Figure 5 and Figure 6 The side wall of the accommodating cavity 4 protrudes in the center to form a card block 24, and the outer surface of the hemispherical seat 5 has a card groove 25 that cooperates with the card block 24 to limit the horizontal rotation of the hemispherical seat 5; a plurality of sockets 26 are vertically opened on the bottom wall of the mounting groove A14, and a plurality of plug rods 27 are fixedly connected to the upper plane push block 15 to cooperate with the sockets 26 to limit the horizontal rotation of the upper plane push block 15, thereby ensuring that the rotation of the lower plane push block 16 will not drive the upper plane push block 15 and the hemispherical seat 5 to rotate, so that the protrusion 17 pushes the upper plane push block 15 and the hemispherical seat 5 to cooperate to lock the hemispherical body 8.

[0049] See also Figure 2 、 Figure 5 and Figure 6, the hemispherical seat 5 is vertically provided with a plurality of mounting holes 19 connected to the mounting groove A14, each of the mounting holes 19 is vertically fixedly connected to a spring 20, and one end of the spring 20 facing the outlet of the mounting hole 19 is fixedly connected to a positioning bead 21;

[0050] The end surface of the upper plane push block 15 is provided with a number of through holes 22 corresponding to the number of the positioning beads 21, and the top surface of the lower plane push block 16 is provided with a number of positioning holes 23. The positioning beads 21 partially extend into the positioning holes 23 through the through holes 22 under the action of the spring 20. When the lower plane push block 16 rotates under the action of an external force, the protrusion 17 squeezes the positioning beads 21 upward into the through holes 22. When the protrusion 17 rotates to a certain angle with the lower plane push block 16, the positioning beads 21 and the positioning beads 21 are aligned with each other. When the positioning holes 23 at other positions are aligned, the positioning beads 21 are pushed out of the through hole 22 again under the force generated by the deformation of the spring 20, and extend downward into the positioning holes 23 at the corresponding position on the protrusion 17, and then collide to produce a prompt sound, prompting the rotation angle of the lower plane push block 16, and the positioning beads 21 cooperate with the positioning holes 23 to limit the rotation of the lower plane push block 16, so as to adjust the size of the pressing force of the hemispherical seat 5 on the hemispherical body 8 according to the need to rotate the angle of the lower plane push block 16.

[0051] See also Figure 4 、 Figure 5 and Figure 6 A movable space 28 is formed between two adjacent blocking blocks 24, and a stop block 29 is integrally formed on the lower plane push block 16 for cooperating with the movable space 28 to limit the rotation range of the lower plane push block 16, so that the lower plane push block 16 can rotate within a certain angle range, thereby ensuring the effectiveness of the action of the lower plane push block 16 on the upper plane push block 15.

[0052] See also Figure 3 and Figure 5 A mounting groove B30 is installed at the bottom of the lower planar push block 16, and a planar thrust bearing 31 is installed between the mounting groove B30 and the bottom wall of the accommodating cavity 4. The planar thrust bearing 31 is used to bear axial loads to provide rolling or sliding contact, which significantly reduces the friction caused by the axial load and helps to improve the efficiency and user experience of the system.

[0053] See also Figure 2 、 Figure 5 and Figure 6A notch 32 is provided on the circumferential surface of the lower flat push block 16, and a radial avoidance groove 34 communicating with the accommodating cavity 4 is provided on the surface of the pan / tilt center axis 2. An adjusting lever 33 is fixedly connected to the notch 32, and the other end of the adjusting lever 33 extends outward through the avoidance groove 34;

[0054] A connecting portion B35 is integrally formed in the notch 32, and the adjusting lever 33 includes a connecting portion A331 fixedly connected to the connecting portion B35 by bolts. An operating portion 332 is integrally formed at the other end of the connecting portion A331. The cooperation of the two connecting portions facilitates the connection and installation of the adjusting lever 33 and the lower plane push block 16. By moving the operating portion 332, the lower plane push block 16 can be rotated.

[0055] The working principle of the present utility model is as follows: when it is necessary to adjust the shooting angle of the photographic equipment, the adjusting lever 33 is moved in accordance with the rotation indication direction of the outer surface of the pan / tilt base 1. When the adjusting lever 33 rotates the lower plane push block 16 so that the protrusion 17 thereon tends to coincide with the matching groove 18 on the upper plane push block 15, the distance between the upper and lower plane push blocks 16 decreases. At this time, the upper plane push block 15 moves downward under the action of gravity, thereby reducing the upward pressing force on the hemispherical seat 5. At this time, the clamping seat 7 is toggled, and the clamping seat 7 can make a swinging motion similar to a "tumbler" in the hemispherical seat 5 through the hemispherical body 8, thereby being able to swing or rotate within a certain range to quickly adjust the shooting angle of the photographic equipment.

[0056] Specifically, when the lower plane push block 16 is rotating, the protrusion 17 squeezes the positioning bead 21 upward into the through hole 22. When the protrusion 17 rotates to a certain angle with the lower plane push block 16 so that the positioning bead 21 is aligned with the positioning holes 23 at other positions, the positioning bead 21 is pushed out of the through hole 22 again under the force generated by the deformation of the spring 20, and extends downward into the positioning hole 23 at the corresponding position on the protrusion 17, thereby playing the role of prompting the rotation angle of the lower plane push block 16, and the cooperation between the positioning bead 21 and the positioning hole 23 can play the role of limiting the rotation of the lower plane push block 16, so as to realize the adjustment of the pressing force of the hemispherical seat 5 on the hemispherical body 8 according to the angle of the lower plane push block 16 as needed;

[0057] After the pressing force on the hemispherical seat 5 is reduced, the connecting screw 13 cooperates with the connecting column 12 to connect the hemispherical seat 5, the hemispherical body 8 and the spherical gasket 10 into one body. At this time, there is a damping force between the hemispherical body 8 and the hemispherical seat 5, and between the hemispherical body 8 and the spherical gasket 10. This prevents the gimbal from "nodding" under the action of the camera's gravity after the pressing force on the hemispherical seat 5 is reduced, thereby reducing the risk of damage to the photographic equipment.

[0058] After the adjustment is completed, the lower plane push block 16 is rotated in the opposite direction, and the upper and lower protrusions 17 cooperate to push the upper plane push block 15 upward, thereby pushing the hemispherical seat 5 upward to press against the hemispherical body 8 to lock the hemispherical body 8. After locking, the worm gear adjustment mechanism 3 can drive the pan head center axis 2 and the pan head base 1 to rotate to further finely adjust the shooting angle of the photographic equipment.

[0059] Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A hemispherical gear pan / tilt head, characterized by: It includes a pan head base and a pan head central axis connected to the pan head base, wherein the pan head base is provided with a worm gear adjustment mechanism for driving the pan head central axis to pitch and swing; The top of the center axis of the pan / tilt head is provided with a receiving cavity with an opening facing upwards, a hemispherical seat is vertically inserted into the opening of the receiving cavity, and the top of the hemispherical seat is provided with a semi-concave ball groove; It also includes a clamping seat with a hemisphere fixedly connected to the bottom, the hemisphere extends into the semi-concave ball groove, and the outer spherical surface of the hemisphere fits with the groove wall of the semi-concave ball groove.

2. The hemispherical gear head according to claim 1, characterized in that: The interior of the hemispherical body has an installation space, a spherical gasket is coupled and arranged in the installation space, and the installation space and the bottom of the hemispherical seat are respectively provided with through holes extending therethrough. A connecting column is integrally formed at the center of the bottom wall of the accommodating cavity, and the top of the connecting column passes through the two through holes in sequence and extends into the spherical gasket; The threaded connection at the top of the connecting column is used to vertically connect the spherical gasket, the hemisphere, the hemispherical seat and the central axis of the gimbal into one connecting screw.

3. The hemispherical gear head according to claim 1, characterized in that: The bottom end surface of the hemispherical seat is provided with a mounting groove A, an upper plane push block is inserted into the mounting groove A, and a lower plane push block is installed below the upper plane push block; A plurality of sloped protrusions are integrally formed on the opposite surfaces of the two planar push blocks, and matching grooves matching the shapes of the protrusions are formed between two adjacent protrusions located on the same water surface.

4. The hemispherical gear head according to claim 3, characterized in that: The hemispherical seat is vertically provided with a plurality of mounting holes connected to the mounting groove A, each of the mounting holes is vertically fixedly connected to a spring, and one end of the spring facing the outlet of the mounting hole is fixedly connected to a positioning bead; The end surface of the upper plane push block is provided with a number of through holes corresponding to the number of the positioning beads, and the top surface of the lower plane push block is provided with a number of positioning holes. The positioning beads partially pass through the through holes and extend into the positioning holes under the action of the spring.

5. The hemispherical gear head according to claim 3, characterized in that: The side wall of the accommodating cavity protrudes in the center to form a clamping block, and the outer surface of the hemispherical seat has a clamping groove that cooperates with the clamping block to limit the horizontal rotation of the hemispherical seat.

6. The hemispherical gear head according to claim 3, characterized in that: A plurality of insertion holes are vertically opened on the bottom wall of the installation slot A, and a plurality of insertion rods are fixedly connected to the upper plane push block and cooperate with the insertion holes to limit the horizontal rotation of the upper plane push block.

7. The hemispherical gear head according to claim 5, characterized in that: An active space is formed between two adjacent clamping blocks, and a stop block is integrally formed on the lower plane pushing block for cooperating with the active space to limit the rotation range of the lower plane pushing block.

8. The hemispherical gear head according to claim 3, characterized in that: A mounting groove B is installed at the bottom of the lower plane push block, and a plane thrust bearing is installed between the mounting groove B and the bottom wall of the accommodating cavity.

9. The hemispherical gear head according to claim 3, characterized in that: A notch is provided on the circumferential surface of the lower plane push block, and a avoidance groove connected to the accommodating cavity is radially provided on the surface of the central axis of the gimbal. An adjustment lever is fixedly connected in the notch, and the other end of the adjustment lever extends outward through the avoidance groove.

10. The hemispherical gear head according to claim 9, characterized in that: A connecting portion B is integrally formed in the notch, and the adjustment lever includes a connecting portion A fixedly connected to the connecting portion B, and an operating portion is integrally formed at the other end of the connecting portion A.

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