Double-spherical-surface clamping and locking holder

Abstract

The invention discloses a double-spherical-surface clamping and locking holder, and aims to provide a double-spherical-surface clamping and locking holder which has sufficient locking force and can support heavy external equipment. The device comprises a rotary knob, a first connecting piece and a second connecting piece, the rotary knob is movably connected to the first connecting piece, a rotating piece is arranged at the lower end of the first connecting piece, an opening is formed in the lower end of the rotary knob, and a first cambered surface is arranged on the opening; the outer side of the second connecting piece is provided with a second cambered surface abutting against the first cambered surface, a first cavity is formed in the second connecting piece, the upper end of the first cavity is provided with a third cambered surface, and the rotating piece is rotationally connected into the first cavity and abuts against the third cambered surface. And the first cambered surface and the rotating piece can be respectively pressed on the second cambered surface and the third cambered surface when the knob rotates. The holder is applied to the technical field of holders.

Description

Technical Field

[0001] The invention relates to the technical field of a pan head, and in particular to a double-spherical clamping and locking pan head. Background Art

[0002] The pan / tilt head is a supporting device used to install and fix cameras, mobile phones, cameras, projectors and other equipment. It is one of the common devices in the fields of photography, film, television, security, etc.

[0003] At present, when installing the pan-tilt head, it is necessary to connect the pan-tilt head between the external device and the bottom bracket, and adjust the direction of the external device by adjusting the rotation position of the ball head of the pan-tilt head. After the adjustment is completed, the direction of the external device is locked by locking the ball head of the pan-tilt head. However, the ball-type pan-tilt head structure in the prior art tightens the ball body through the side, and the locking force is not strong enough. When the external device is a moderately heavy device, such as a heavier projector, the pan-tilt head structure in the prior art has insufficient locking force. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a double-spherical clamping and locking pan / tilt head with sufficient locking force and capable of supporting heavier external equipment.

[0005] The technical solution adopted by the present invention is: the present invention includes a knob, a first connecting member and a second connecting member, the knob is movably connected to the first connecting member, a rotating member is provided at the lower end of the first connecting member, an opening is provided at the lower end of the knob, a first arc surface is provided on the opening, a second arc surface abutting the first arc surface is provided on the outer side of the second connecting member, a first cavity is provided in the second connecting member, a third arc surface is provided at the upper end of the first cavity, the rotating member is rotatably connected in the first cavity and abuts against the third arc surface, and the first arc surface and the rotating member can be pressed against the second arc surface and the third arc surface respectively when the knob is rotated.

[0006] Furthermore, the second connecting member includes a spherical body and a connecting seat, the connecting seat is connected to the lower end of the spherical body, the first cavity is a spherical cavity formed in the spherical body, the second arc surface is formed on the outside of the spherical body, and the lower end of the connecting seat is provided with a connecting thread.

[0007] Furthermore, the second connecting member includes an arc cover body, the first cavity is formed in the arc cover body, the second arc surface is formed on the outer side of the arc cover body, and a connecting thread is provided at the lower end of the arc cover body.

[0008] Furthermore, the second connecting member includes a connecting bracket, the first cavity is formed in the connecting bracket, the second arc surface is formed at the upper end of the connecting bracket, and the first arc surface is formed at the lower end of the knob.

[0009] Further, the first connecting member includes a first screw head, a second screw head and a movable member, the movable member is arranged on the first screw head and the second screw head, the second screw head is located below the first screw head and is fixedly connected to the movable member, the rotating member is located at the lower end of the second screw head, and the knob is threadedly connected to the movable member and can rotate relative to the movable member.

[0010] Furthermore, the lower end of the knob has a top block, and the opening is formed at the lower end of the top block.

[0011] Furthermore, the radians of the rotating member, the first arc surface, the second arc surface and the third arc surface are all equal.

[0012] Furthermore, movable blocks are provided on both sides of the movable part, a first elastic part is provided between the movable block and the movable part, the two movable blocks are respectively abutted against both sides of the first screw head, and a second cavity for the movable block to move is provided in the knob.

[0013] Furthermore, the second cavity includes a third cavity and a fourth cavity, the lower end of the third cavity is connected to the upper end of the fourth cavity, a guiding inclined portion is connected between the third cavity and the fourth cavity, and the horizontal length of the third cavity is smaller than the horizontal length of the fourth cavity.

[0014] Furthermore, the height of the third cavity is greater than the maximum stroke of the first arc surface to reach the second arc surface, and the height of the movable block is equal to or less than the height of the fourth cavity.

[0015] Furthermore, the rotating member includes a sphere and a second elastic member, a push block is embedded in the sphere, the second elastic member is arranged in the sphere and located between the sphere and the push block, and the push block abuts against the lower end of the first cavity.

[0016] Furthermore, the rotating member is one of a ball head, an arc head or a cylinder.

[0017] The beneficial effects of the present invention are:

[0018] With respect to the deficiencies of the prior art, in the present invention, since the first connecting member and the second connecting member do not rotate when the knob is rotated, the knob can move downward relative to the first connecting member, so that the first arc surface located at the lower end of the knob is pressed against the second arc surface located on the outside of the second connecting member; at the same time, since the first connecting member moves upward relative to the knob, the first connecting member can drive the rotating member to move upward and press against the third arc surface, thereby realizing the double-spherical clamping and locking the direction of the gimbal. This double-spherical clamping form can improve the structural stability of the gimbal, can support heavier external equipment, and improve the stability of the gimbal after installation, so that the present invention has the advantages of structural stability and the ability to support heavier external equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0021] Figure 2 is a cross-sectional schematic diagram of embodiment 1 of the present invention;

[0022] Figure 3 is a cross-sectional schematic diagram of a second connecting member according to the first embodiment of the present invention;

[0023] Figure 4 is a cross-sectional schematic diagram of a second embodiment of the present invention;

[0024] Figure 5 is a cross-sectional schematic diagram of embodiment 3 of the present invention;

[0025] Figure 6 It is a cross-sectional schematic diagram of embodiment 4 of the present invention.

[0026] The reference numerals are as follows:

[0027] 1. Knob; 2. First connecting piece; 3. Second connecting piece; 6. Ball head; 7. Opening; 8. First arc surface; 9. Second arc surface; 10. First cavity; 11. Third arc surface; 13. First screw head; 15. Second screw head; 16. Movable part;

[0028] 18. Pad; 19. Movable block; 21. Second cavity; 22. Third cavity; 23. Fourth cavity; 26. Spherical body; 27. Connecting seat; 28. Top block; 29. ​​Arc cover; 30. Spherical body; 31. Second elastic member; 32. Push block; 41. Connecting bracket; 42. Fixed block.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Embodiment 1:

[0034] like Figures 1 to 3As shown, in this embodiment, the present invention comprises a knob 1, a first connecting member 2 and a second connecting member 3, wherein the knob 1 is movably connected to the first connecting member 2, a rotating member 6 is provided at the lower end of the first connecting member 2, an opening 7 is provided at the lower end of the knob 1, a first arc surface 8 is provided on the opening 7, a second arc surface 9 abutting against the first arc surface 8 is provided on the outer side of the second connecting member 3, a first cavity 10 is provided in the second connecting member 3, a third arc surface 11 is provided at the upper end of the first cavity 10, the rotating member 6 is rotatably connected in the first cavity 10 and abuts against the third arc surface 11, and the first arc surface 8 and the rotating member 6 can be pressed against the second arc surface 9 and the third arc surface 11 respectively when the knob 1 is rotated. Among them, the second arc surface 9 is a spherical surface formed on the outer side of the second connecting member 3; the first cavity 10 is a spherical cavity adapted to the rotating member 6, and the third arc surface 11 is formed on the inner surface of the spherical cavity; the rotating member 6 is a ball head.

[0035] When the gimbal needs to be used in conjunction with an external device, the upper and lower ends are respectively connected to the external device and the bottom bracket, and the first connecting member 2 and the second connecting member 3 are respectively connected to the external device and the bottom bracket to complete the installation of the gimbal; wherein, the direction of the gimbal can be adjusted by adjusting the rotation position of the rotating member 6 in the first cavity 10.

[0036] With respect to the deficiencies of the prior art, in the present invention, since the first connecting member 2 and the second connecting member 3 do not rotate when the knob 1 is rotated, the knob 1 can move downward relative to the first connecting member 2, so that the first arc surface 8 located at the lower end of the knob 1 is pressed against the second arc surface 9 located on the outside of the second connecting member 3; at the same time, since the first connecting member 2 moves upward relative to the knob 1, the first connecting member 2 can drive the rotating member 6 to move upward and press against the third arc surface 11, thereby realizing the double-spherical clamping to lock the direction of the gimbal. This double-spherical clamping form can improve the structural stability of the gimbal, can support heavier external equipment, and improve the stability of the gimbal after installation, so that the present invention has the advantages of sufficient locking force and the ability to support heavier external equipment.

[0037] In this embodiment, the second connecting member 3 includes a spherical body 26 and a connecting seat 27, the connecting seat 27 is connected to the lower end of the spherical body 26, the first cavity 10 is a spherical cavity formed in the spherical body 26, the second arc surface 9 is formed on the outer side of the spherical body 26, and a connecting thread is provided at the lower end of the connecting seat 27. Specifically, the connecting seat 27 is connected to the bottom bracket through the connecting thread.

[0038] In this embodiment, the first connecting member 2 includes a first screw head 13, a second screw head 15 and a movable member 16, the first screw head 13 and the second screw head 15 are both arranged in the movable member 16, the second screw head 15 is located below the first screw head 13 and is fixedly connected to the movable member 16, the rotating member 6 is located at the lower end of the second screw head 15, and the knob 1 is threadedly connected to the movable member 16 and can rotate relative to the movable member 16. Specifically, the direction of the gimbal is adjusted by adjusting the rotational position of the rotating member 6 in the first cavity 10; further, when the direction needs to be locked, the knob 1 is rotated to move downward relative to the movable member 16. At this time, the first arc surface 8 located at the lower end of the knob 1 is pressed against the second arc surface 9 located on the outside of the second connecting member 3; at the same time, since the movable member 16 moves upward relative to the knob 1, and the second screw head 15 and the movable member 16 are fixedly connected, the rotating member 6 located at the lower end of the second screw head 15 moves upward and is tightened on the third arc surface 11, thereby realizing the double-spherical clamping and locking of the gimbal direction.

[0039] In this embodiment, the lower end of the knob 1 has a top block 28, and the opening 7 is formed at the lower end of the top block 28; the radians of the rotating member 6, the first arc surface 8, the second arc surface 9 and the third arc surface 11 are all equal.

[0040] In this embodiment, movable blocks 19 are provided on both sides of the movable member 16, a first elastic member is provided between the movable block 19 and the movable member 16, the two movable blocks 19 are respectively abutted against the two sides of the first screw head 13, and a second cavity 21 for the movable block 19 to move is provided in the knob 1; the second cavity 21 includes a third cavity 22 and a fourth cavity 23, the lower end of the third cavity 22 is connected to the upper end of the fourth cavity 23, a guiding inclined portion 25 is connected between the third cavity 22 and the fourth cavity 23, the horizontal length of the third cavity 22 is smaller than the horizontal length of the fourth cavity 23; the height of the third cavity 22 is greater than the maximum stroke of the first arc surface 8 to reach the second arc surface 9, and the height of the movable block 19 is equal to or smaller than the height of the fourth cavity 23. Among them, since the height of the third cavity 22 is greater than the maximum stroke setting of the first arc surface 8 to reach the second arc surface 9, the first screw head 13 does not reach the upper end of the first movable cavity 5, so that the movable block 19 has a movable space between it and the third cavity 22 when the double spherical clamping is performed. Specifically, when the direction of the gimbal is in an unlocked state, the movable block 19 is located in the fourth cavity 23; when the direction of the gimbal needs to be locked, the knob 1 is rotated to move relative to the movable part 16, so that the movable block 19 can be moved to the narrower third cavity 22 through the guide inclined portion 25. At this time, the two movable blocks 19 can be respectively pressed against the two sides of the first screw head 13, thereby locking the quick-release plate connection composed of the first screw head 13 and the pad 18; in addition, when the gimbal releases the direction lock, the knob 1 is rotated in the opposite direction so that the knob 1 moves upward relative to the movable part 16, so that the movable block 19 can be moved to the wider fourth cavity 23 through the guide inclined portion 25, and the movable block 19 moves in a direction away from the first screw head 13 under the elastic force of the first elastic member to release the pressure of the movable block 19 on the first screw head 13.

[0041] In some other embodiments of the present invention, the rotating member 6 may not be a solid ball head, but may include a sphere 30 and a second elastic member 31, a push block 32 is embedded in the sphere 30, the second elastic member 31 is disposed in the sphere 30 and located between the sphere 30 and the push block 32, and the push block 32 abuts against the lower end of the first cavity 10. Specifically, the push block 32 abuts against the lower end of the first cavity 10 under the elastic force of the second elastic member 31.

[0042] Embodiment 2:

[0043] The difference between the second embodiment and the first embodiment is that the specific structure of the second connecting member 3 and the specific structure of the rotating member 6 are different, as follows:

[0044] like Figure 4As shown, in this embodiment, the second connecting member 3 includes an arc cover 29, the first cavity 10 is formed in the arc cover 29, the second arc surface 9 is formed on the outside of the arc cover 29, and the lower end of the arc cover 29 is provided with a connecting thread. Among them, the first arc surface 8 is formed at the opening 7 at the lower end of the knob 1, and the third arc surface 11 is formed at the upper end of the first cavity 10. Specifically, when the direction of the pan / tilt needs to be locked, the knob 1 is rotated so that the knob 1 moves downward relative to the first connecting member 2. At this time, the first arc surface 8 at the lower end of the knob 1 presses against the second arc surface 9 located on the outside of the arc cover 29; at the same time, the first connecting member 2 moves upward relative to the knob 1, so that the rotating member 6 can move upward and press against the third arc surface 11. Therefore, the rotating member 6 and the first arc surface 8 have a cooperative force on the second arc surface 9 and the third arc surface 11 located inside and outside the arc cover 29 to achieve clamping, thereby locking the direction of the external device.

[0045] Embodiment three:

[0046] The difference between the third embodiment and the first embodiment is that the specific structure of the second connecting member 3 is different, as follows:

[0047] like Figure 5 As shown, in this embodiment, the second connecting member 3 includes an arc cover body 29, the first cavity 10 is formed in the arc cover body 29, the second arc surface 9 is formed on the outside of the arc cover body 29, a connecting thread is provided at the lower end of the arc cover body 29, and the rotating member 6 is an arc head. Among them, the first curved surface 8 is formed at the opening 7 at the lower end of the knob 1, and the third curved surface 11 is formed at the upper end of the first cavity 10; when the gimbal needs to be used in conjunction with an external device and locked between the external device and the bottom bracket, the first connecting member 2 is driven to rotate by rotating the knob 1. At this time, the second connecting member 3 does not rotate. Specifically, the first connecting member 2 will move upward relative to the knob 1 during the connection with the external device, so that the rotating member 6 can move upward and press against the third curved surface 11, and the first curved surface 8 located at the lower end of the knob 1 presses against the second curved surface 9 located on the outside of the circular arc cover body 29, forming a cooperative force between the rotating member 6 and the first curved surface 8 on the second curved surface 9 and the third curved surface 11 located inside and outside the circular arc cover body 29 to achieve clamping, thereby locking the direction of the external device.

[0048] Embodiment 4:

[0049] The difference between the fourth embodiment and the third embodiment is that the specific structure of the second connecting member 3 is different, as follows:

[0050] like Figure 6As shown, in this embodiment, the second connecting member 3 includes a connecting bracket 41, a first cavity 10 is formed in the connecting bracket 41, a second arc surface 9 is formed at the upper end of the connecting bracket 41, a first arc surface 8 is formed at the lower end of the knob 1, and the rotating member 6 is a cylinder. Among them, the first curved surface 8 is formed at the opening 7 at the lower end of the knob 1, and the third curved surface 11 is formed at the upper end of the first cavity 10; when the gimbal needs to be used in conjunction with an external device and locked between the external device and the bottom bracket, the first screw head 13 is driven to rotate by rotating the knob 1, and at the same time, the connecting bracket 41 and the fixing block 42 located at the lower end of the knob 1 and abutting against the outer side of the connecting bracket 41 do not rotate. Specifically, the first screw head 13 and the second screw head 15 will move upward relative to the knob 1 during the connection with the external device, so that the rotating member 6 can move upward and press against the third curved surface 11, and the first curved surface 8 located at the lower end of the knob 1 presses against the second curved surface 9 located on the outer side of the connecting bracket 41, so that the rotating member 6 and the first curved surface 8 have a cooperative force on the second curved surface 9 and the third curved surface 11 located inside and outside the connecting bracket 41 to achieve clamping, thereby locking the direction of the external device.

[0051] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A double spherical clamping and locking pan / tilt head, characterized in that: The invention comprises a knob (1), a first connecting member (2) and a second connecting member (3); the knob (1) is movably connected to the first connecting member (2); a rotating member (6) is provided at the lower end of the first connecting member (2); an opening (7) is provided at the lower end of the knob (1); a first arc surface (8) is provided on the opening (7); a second arc surface (9) abutting against the first arc surface (8) is provided on the outer side of the second connecting member (3); a first cavity (10) is provided in the second connecting member (3); a third arc surface (11) is provided at the upper end of the first cavity (10); the rotating member (6) is rotatably connected in the first cavity (10) and abuts against the third arc surface (11); the first arc surface (8) and the rotating member (6) can be pressed against the second arc surface (9) and the third arc surface (11) respectively when the knob (1) is rotated.

2. The double-spherical clamping and locking pan / tilt head according to claim 1, characterized in that: The second connecting member (3) comprises a spherical body (26) and a connecting seat (27), wherein the connecting seat (27) is connected to the lower end of the spherical body (26), the first cavity (10) is a spherical cavity formed in the spherical body (26), the second arc surface (9) is formed on the outer side of the spherical body (26), and the lower end of the connecting seat (27) is provided with a connecting thread.

3. The double-spherical clamping and locking pan / tilt head according to claim 1, characterized in that: The second connecting member (3) comprises a circular arc cover body (29), the first cavity (10) is formed in the circular arc cover body (29), the second arc surface (9) is formed on the outer side of the circular arc cover body (29), and a connecting thread is provided at the lower end of the circular arc cover body (29).

4. The double spherical clamping and locking pan / tilt head according to claim 1, characterized in that: The second connecting member (3) comprises a connecting bracket (41), the first cavity (10) is formed in the connecting bracket (41), the second arc surface (9) is formed at the upper end of the connecting bracket (41), and the first arc surface (8) is formed at the lower end of the knob (1).

5. The double spherical clamping and locking pan / tilt head according to any one of claims 1 to 4, characterized in that: The first connecting member (2) comprises a first screw head (13), a second screw head (15) and a movable member (16); the movable member (16) is arranged on the first screw head (13) and the second screw head (15); the second screw head (15) is located below the first screw head (13) and is fixedly connected to the movable member (16); the rotating member (6) is located at the lower end of the second screw head (15); the knob (1) is threadedly connected to the movable member (16) and can rotate relative to the movable member (16).

6. The double-spherical clamping and locking pan / tilt head according to claim 1, characterized in that: The lower end of the knob (1) is provided with a top block (28), and the opening (7) is formed at the lower end of the top block (28).

7. The double-spherical clamping and locking pan / tilt head according to claim 1, characterized in that: The radians of the rotating member (6), the first arc surface (8), the second arc surface (9) and the third arc surface (11) are all equal.

8. The double-spherical clamping and locking pan / tilt head according to claim 5, characterized in that: Movable blocks (19) are provided on both sides of the movable member (16), a first elastic member is provided between the movable block (19) and the movable member (16), the two movable blocks (19) are respectively abutted against both sides of the first screw head (13), and a second cavity (21) for the movable block (19) to move is provided in the knob (1).

9. The double-spherical clamping and locking pan / tilt head according to claim 8, characterized in that: The second cavity (21) comprises a third cavity (22) and a fourth cavity (23); the lower end of the third cavity (22) is connected to the upper end of the fourth cavity (23); a guiding inclined portion (25) is connected between the third cavity (22) and the fourth cavity (23); and the horizontal length of the third cavity (22) is smaller than the horizontal length of the fourth cavity (23).

10. The double-spherical clamping and locking pan / tilt head according to claim 9, characterized in that: The height of the third cavity (22) is greater than the maximum stroke of the first curved surface (8) reaching the second curved surface (9), and the height of the movable block (19) is equal to or less than the height of the fourth cavity (23).

11. The double spherical clamping and locking pan / tilt head according to any one of claims 1 to 4, characterized in that: The rotating member (6) comprises a sphere (30) and a second elastic member (31); a push block (32) is embedded in the sphere (30); the second elastic member (31) is arranged in the sphere (30) and located between the sphere (30) and the push block (32); the push block (32) abuts against the lower end of the first cavity (10).

12. The double spherical clamping and locking pan / tilt head according to any one of claims 1 to 4, characterized in that: The rotating member (6) is one of a spherical head, an arc head or a cylinder.

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