CN115574230A - Spherical tripod head structure - Google Patents

Abstract

The invention discloses a spherical tripod head structure, comprising: the installation seat is provided with a spherical cavity with an upward opening, a spherical piece is rotatably arranged in the spherical cavity, the opening edge of the spherical cavity can prevent the spherical piece from being separated from the spherical cavity, the installation seat is provided with a pushing piece which is pushed against the spherical piece, and the pushing piece can push up the spherical piece upwards along the central line of the opening of the spherical cavity so as to enable the opening edge of the spherical cavity to be in full contact with the surface of the spherical piece. The spherical pan-tilt structure is characterized in that the spherical pan-tilt structure is provided with a pushing piece which is used for pushing the spherical piece upwards along the central line of the opening of the spherical cavity, so that the opening edge of the spherical cavity can be in full contact with the outer surface of the spherical piece, the contact force between the outer surface of the spherical piece and each position of the opening edge of the spherical cavity is relatively average, a circle of friction area in close contact can be formed between the outer surface of the spherical piece and the opening edge of the spherical cavity, the locking force of the spherical piece is favorably improved, and the spherical pan-tilt structure can be suitable for application occasions with larger loads.

Description

A spherical cloud platform structure

technical field

The invention relates to a spherical cloud platform structure.

Background technique

In photography work or projection work, the cloud head is often used to install external devices such as cameras or projectors. In order to adjust the direction of shooting or projection, a spherical head is generally set to adjust the angle position.

Referring to Fig. 4, a traditional ball head includes a mounting seat 100, which is provided with a spherical cavity with an upward opening, and a ball head 600 that can rotate at multiple angles is provided in the spherical cavity, and the ball head 600 is connected with an opening along the spherical cavity. The protruding connecting rod 400, the side of the mounting base 100 is provided with a threaded ejector rod 310, the end of the threaded ejector rod 310 extends into the spherical cavity, and the spherical cavity is provided with a threaded ejector rod 310 between the end of the threaded ejector rod 310 and the ball head 600. The inclined plane pushes block 500 between. When the threaded ejector rod 310 pushes the inclined-plane push block 500 toward the interior of the spherical cavity, the inclined-plane push block 500 can lift the ball head 600 obliquely upward, so that part of the surface of the ball head 600 contacts the opening edge of the spherical cavity 101 .

The force direction of the above-mentioned slope push block 500 acting on the ball head 600 is inclined upward, and the contact force between the surface of the ball head 600 and the opening edge of the spherical cavity is different at different positions, causing the opening edge of the spherical cavity to act on the ball head. The friction force on the surface of the 600 is unbalanced, and when the load connected by the connecting rod 400 is relatively large, the ball head is prone to deflection.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a spherical pan-tilt structure with large locking force and suitable for heavy loads.

A spherical pan/tilt structure according to an embodiment of the present invention, comprising: a mounting seat, the mounting seat is provided with a spherical cavity with an upward opening, a spherical member is rotatably arranged in the spherical cavity, and the opening edge of the spherical cavity can be To prevent the spherical member from falling out of the spherical cavity, the mounting base is provided with a pusher against the spherical member, and the pusher can be pushed up along the center line of the opening of the spherical cavity The spherical member is such that the opening edge of the spherical cavity can all contact the surface of the spherical member.

A spherical pan/tilt structure according to an embodiment of the present invention has at least the following beneficial effects:

The above spherical platform structure is pushed up by the push piece along the center line of the opening of the spherical cavity, so that the opening edge of the spherical cavity can all contact the outer surface of the spherical component, and the outer surface of the spherical component and the opening edge of the spherical cavity The contact force of each position of the spherical part is relatively average, and a circle of close contact friction area can be formed between the outer surface of the spherical part and the opening edge of the spherical cavity, so that the opening edge of the spherical cavity is in a state of tightly hugging the spherical part. It is beneficial to improve the locking force on the spherical member, and the spherical head structure can be applied to the application occasion with a large load, ensuring the stability of projection work or photography work.

In some embodiments of the present invention, the outer surface of the spherical member is a partial spherical surface, and a concave cavity is provided inside the spherical member, and the pushing member leans against the inner wall of the concave cavity so that the The outer surface of the spherical member is tight against the opening edge of the spherical cavity.

In some embodiments of the present invention, the spherical member is a spherical shell in the shape of a spherical segment, and the pushing member vertically abuts against the inner surface of the spherical shell so that the outer surface of the spherical shell The surface closely fits the opening edge of the spherical cavity.

In some embodiments of the present invention, the connecting rod is arranged on the outer surface of the spherical housing, and the length direction of the connecting rod extends along the radial direction of the spherical housing.

In some embodiments of the present invention, the spherical housing and the connecting rod are integrally made of aluminum.

In some embodiments of the present invention, the push piece includes a threaded ejector rod that is threadedly connected to the mounting seat, the lower end of the threaded ejector rod protrudes from the mounting seat, and the threaded ejector rod The lower end is connected with a knob portion, and the upper end of the threaded push rod has a convex portion abutting against the inner surface of the spherical shell.

In some embodiments of the present invention, the convex part has a convex arc surface opposite to the inner surface of the spherical shell, and the curvature radius of the convex arc surface is larger than the curvature radius of the inner surface of the spherical shell.

In some embodiments of the present invention, the mounting seat includes a lower connecting seat and an upper connecting seat provided on the lower connecting seat, and the lower connecting seat is provided with a circular arc recess matching the outer surface of the spherical member. Groove, the upper connecting seat has a circular arc channel matching the outer surface of the spherical member, the opening of the spherical cavity is arranged on the upper connecting seat and communicates with the arc channel, the arc channel The spherical cavity is defined together with the arc groove.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the internal structure schematic diagram of a kind of embodiment of spherical head structure of the present invention;

Fig. 2 is the schematic diagram after the spherical member and the connecting rod of the embodiment of Fig. 1 rotate a certain angle;

Fig. 3 is the structural exploded schematic diagram of Fig. 2 embodiment;

Fig. 4 is a schematic diagram of a spherical pan/tilt structure in the prior art.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that when referring to orientation descriptions, such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" ", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, several means one or more, and multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Referring to Fig. 1 to Fig. 3, a kind of spherical head structure of the embodiment of the present invention, comprises: mounting seat 100, and mounting seat 100 is provided with the spherical cavity 101 that opens upward, and spherical member 200 is rotatably arranged in spherical cavity 101, spherical The edge of the opening of the cavity 101 can prevent the spherical member 200 from coming out of the spherical cavity 101. The mounting seat 100 is provided with a pusher 300 against the spherical member 200, and the pusher 300 can push upward along the center line of the opening of the spherical cavity 101. The spherical member 200 is lifted so that the opening edge of the spherical cavity 101 can fully contact the surface of the spherical member 200 .

The above spherical platform structure pushes up the spherical member 200 upwards along the central line of the opening of the spherical cavity 101 by the pushing member 300, so that the opening edge of the spherical cavity 101 can all contact the outer surface of the spherical member 200, and the outer surface of the spherical member 200 The gaps in contact with each position of the opening edge of the spherical cavity 101 are more uniform, and the pressing force is more average. A circle of closely contacting friction areas can be formed between the outer surface of the spherical member 200 and the opening edge of the spherical cavity 101, so that the spherical The edge of the opening of the cavity 101 is in a state of tightly hugging the spherical member 200, which is conducive to improving the locking force on the spherical member 200. The spherical head structure can be applied to applications with large loads to ensure the stability of projection work or photography work. .

1 and 2, in some embodiments of the present invention, the outer surface of the spherical member 200 is a partial spherical surface, the interior of the spherical member 200 is provided with a cavity 210, and the pusher 300 is against the inner wall of the cavity 210 Such that the outer surface of the spherical member 200 is tightly pressed against the opening edge of the spherical cavity 101 . It can be understood that, compared with the traditional method of using an inclined-plane push block to act on the outer surface of the ball head, the position where the push piece 300 acts on the inner wall of the concave cavity 210 has a shorter distance from the edge of the opening of the spherical cavity 101, which is beneficial to The upward thrust is transmitted between the outer surface of the spherical member 200 and the opening edge of the spherical cavity 101 .

Referring to Fig. 1 and Fig. 2, in some embodiments of the present invention, the spherical member 200 is a spherical shell in the shape of a spherical segment, and the pushing member 300 vertically abuts against the inner surface of the spherical shell to make the spherical shell The outer surface closely matches the opening edge of the spherical cavity 101 . It should be noted that the inner surface and the outer surface of the spherical shell are concentrically arranged spherical surfaces. No matter the spherical shell rotates to any angular position, the pusher 300 only needs to be displaced upward by the same distance to press the spherical shell tightly. On the edge of the opening of the spherical cavity 101, the material cost can also be reduced. In addition, it can be understood that when the outer surface of the spherical shell abuts against the opening edge of the spherical cavity 101, a slight deformation can occur, so that the outer surface of the spherical shell and the opening edge of the spherical cavity 101 can achieve a better relationship. Tight fit effect.

Referring to Fig. 1, in some embodiments of the present invention, the connecting rod 400 is arranged on the outer surface of the spherical housing, and the length direction of the connecting rod 400 extends along the radial direction of the spherical housing, so that the connecting rod 400 can be placed in the spherical cavity The opening of the opening 101 swings at the same angle in different directions under the limiting action, so as to broaden the range of angle adjustment of the connecting rod 400 as much as possible.

Referring to FIG. 1 , in some embodiments of the present invention, in order to simplify the production and assembly process and improve the connection strength between the connecting rod 400 and the spherical housing, the spherical housing and the connecting rod 400 are integrally made of aluminum.

Referring to Fig. 1 and Fig. 2, in some embodiments of the present invention, the pusher 300 includes a threaded push rod 310 threadedly connected to the mount 100, the lower end of the threaded push rod 310 protrudes outside the mount 100, and the threaded push rod 310 protrudes outside the mount 100, and the threaded push rod 310 The lower end of the rod 310 is connected with a knob portion 320 , and the upper end of the threaded push rod 310 has a convex portion 330 abutting against the inner surface of the spherical shell. It should be noted that when the knob part 320 is turned, the threaded push rod 310 moves in the up and down direction, and the convex part 330 presses against the inner surface of the spherical shell upward or moves away from the inner surface of the spherical shell downward.

1 and 3, in some embodiments of the present invention, in order to obtain a better tightening effect, the convex part 330 has a convex arc surface 331 opposite to the inner surface of the spherical shell, and the curvature radius of the convex arc surface 331 greater than the radius of curvature of the inner surface of the spherical shell. It can be understood that since the radius of curvature of the convex arc surface 331 is larger than the radius of curvature of the inner surface of the spherical shell, point-to-point contact is formed between the convex arc surface 331 and the inner surface of the spherical shell, when the convex arc surface 331 wears Afterwards, the convex arc surface 331 can still form single-point or multi-point contact with the inner surface of the spherical shell. In some other embodiments, the convex portion 330 has a plane facing the inner surface of the spherical shell, so that multiple points of contact can be formed with the spherical shell.

Referring to FIG. 3 , in some embodiments of the present invention, the mounting base 100 includes a lower connecting base 110 and an upper connecting base 120 disposed on the lower connecting base 110 , and the lower connecting base 110 is provided with a circle matching the outer surface of the spherical member 200 The arc groove 111, the upper connecting seat 120 has a circular arc channel 121 that matches the outer surface of the spherical member 200, the opening of the spherical cavity 101 is located on the upper connecting seat 120 and communicates with the circular arc channel 121, the circular arc channel 121 and the circular arc channel 121 The arc grooves 111 collectively define the spherical cavity 101 . When assembling the spherical member 200, first put the spherical member 200 into the arc groove 111 of the lower connecting seat 110, then assemble the upper connecting seat 120 on the lower connecting seat 110, and at the same time make the connecting rod 400 pass through the spherical cavity 101 upwards. Opening, the inner peripheral wall of the arc channel 121 can be in contact with the outer surface of the spherical member 200 , and the spherical member 200 can rotate universally in the spherical cavity 101 .

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (8)

1. A spherical pan-tilt structure, comprising:

mount pad (100), mount pad (100) are equipped with the ascending spherical chamber of opening (101), rotatable spherical chamber (101) are provided with spherical member (200) in, spherical member (200) are connected with the edge connecting rod (400) that the opening of spherical chamber (101) stretches out, the opening edge of spherical chamber (101) can prevent spherical member (200) deviate from in spherical chamber (101), be equipped with on mount pad (100) to support in push up piece (300) of spherical member (200), push up piece (300) can be followed the central line of the opening of spherical chamber (101) upwards jack-up spherical member (200), so that the opening edge of spherical chamber (101) can all contact in the surface of spherical member (200).

2. A spherical head structure according to claim 1, characterized in that:

the outer surface of the spherical surface piece (200) is a partial spherical surface, a concave cavity (210) is formed in the spherical surface piece (200), and the pushing piece (300) abuts against the inner wall of the concave cavity (210) so that the outer surface of the spherical surface piece (200) abuts against the opening edge of the spherical cavity (101).

3. A spherical head structure according to claim 2, characterized in that:

the spherical part (200) is a spherical shell in a spherical segment shape, and the pushing part (300) vertically and upwards pushes against the inner surface of the spherical shell so that the outer surface of the spherical shell is tightly matched with the opening edge of the spherical cavity (101).

4. A spherical head structure according to claim 3, characterized in that:

the connecting rod (400) is arranged on the outer surface of the spherical shell, and the length direction of the connecting rod (400) extends along the radial direction of the spherical shell.

5. A spherical head structure according to claim 4, characterized in that:

the spherical shell and the connecting rod (400) are of an integral aluminum structure.

6. A spherical head structure according to claim 3, characterized in that:

the pushing piece (300) comprises a threaded push rod (310) in threaded connection with the mounting base (100), the lower end of the threaded push rod (310) extends out of the mounting base (100), the lower end of the threaded push rod (310) is connected with a knob portion (320), and a convex portion (330) abutted against the inner surface of the spherical shell is arranged at the upper end of the threaded push rod (310).

7. A spherical head structure according to claim 6, characterized in that:

the convex portion (330) has a convex arc surface (331) opposite to the inner surface of the spherical housing, and the radius of curvature of the convex arc surface (331) is larger than the radius of curvature of the inner surface of the spherical housing.

8. A spherical head structure according to claim 1, characterized in that:

mounting seat (100) include down connecting seat (110) and locate last connecting seat (120) of connecting seat (110) down, down connecting seat (110) be equipped with surface assorted circular arc recess (111) of sphere piece (200), go up connecting seat (120) have the round with surface assorted circular arc passageway (121) of sphere piece (200), the opening of spherical chamber (101) is located go up connecting seat (120) and communicate circular arc passageway (121), circular arc passageway (121) with circular arc recess (111) are injectd jointly spherical chamber (101).

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