CN219062964U - Tripod head device - Google Patents

Abstract

The utility model discloses a cradle head device, comprising: the seat body is equipped with the ascending movable chamber of opening, and movable intracavity is rotatable to be provided with the sphere shell, and the sphere shell is connected with the connecting rod that stretches out along the opening in movable chamber, and the opening edge in movable chamber can prevent that the sphere shell from breaking away from movable chamber, and the inside of seat body is equipped with the lower portion of holding in the palm that can contact with the internal surface in sphere shell, is equipped with the top pushing part on the seat body, and the top pushing part can support in the internal surface in sphere shell so that the opening edge in movable chamber contacts with the surface in sphere shell and order about the sphere shell centre gripping between the opening edge in movable chamber and lower portion. The cradle head device is propped against the inner surface of the spherical shell by the pushing piece, so that the outer surface of the spherical shell is tightly matched with the edge of the opening of the movable cavity, and meanwhile, the spherical shell is stressed to deform so that the inner surface of the spherical shell clamps the lower supporting part, thereby improving the locking force of the cradle head device, and the spherical shell is adopted to replace a solid sphere, so that the material cost is reduced.

Description

Tripod head device

Technical Field

The utility model relates to a holder device.

Background

In photographing or projection, a pan-tilt is often used to mount external devices such as a camera or a projector, and in order to adjust the direction of photographing or projection, a spherical pan-tilt is generally provided to adjust the angular position.

Referring to fig. 3, the conventional spherical cradle head includes a mounting seat 100, a spherical cavity with an upward opening is provided in the mounting seat 100, a ball head 600 capable of rotating at multiple angles is provided in the spherical cavity, the ball head 600 is connected with a connecting rod 400 extending along the opening of the spherical cavity, a threaded ejector rod 310 is provided at the side of the mounting seat 100, the end of the threaded ejector rod 310 extends into the spherical cavity, and an inclined push block 500 is provided in the spherical cavity between the end of the threaded ejector rod 310 and the ball head 600.

When the threaded ejector pin 310 pushes the inclined push block 500 toward the inside of the spherical cavity, the inclined push block 500 can obliquely lift up the ball head 600 so that the surface of the ball head 600 is abutted against the opening edge of the spherical cavity 101. The ball head 600 is a solid ball, so that the locking force between the surface of the ball head 600 and the opening edge of the spherical cavity 101 is small, and the working condition of large load connected by the connecting rod 400 is difficult to cope with. In addition, since the ball head 600 is a complete sphere, the height of the spherical cradle head is large, which is not only material-saving, but also convenient to carry and use.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the cradle head device which saves materials and has larger locking force.

According to an embodiment of the utility model, a cradle head device comprises: the seat body, the seat body is equipped with the ascending movable chamber of opening, movable intracavity rotatable be provided with the sphere shell, the sphere shell is connected with the edge the connecting rod that stretches out of the opening in movable chamber, the opening edge in movable chamber can prevent the sphere shell breaks away from the movable chamber, the inside of seat body be equipped with can with the interior surface of sphere shell contacts hold in the palm the portion down, be equipped with the pushing away from on the seat body, the pushing away from can the top in the interior surface of sphere shell so that the opening edge in movable chamber with the surface of sphere shell contacts and drives the sphere shell centre gripping in between the opening edge in movable chamber with hold in the palm the portion down.

According to the embodiment of the utility model, the cradle head device has at least the following beneficial effects:

when the angle position of the external equipment on the connecting rod is required to be locked, the pushing piece is abutted 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 movable cavity, meanwhile, the spherical shell is stressed to generate certain deformation, so that the part of the spherical shell below the opening edge of the movable cavity is folded inwards, the inner surface of the spherical shell is utilized to clamp the lower supporting part, namely, larger friction force exists between the lower supporting part and the inner surface of the spherical shell and between the opening edge of the movable cavity and the outer surface of the spherical shell, the locking force of the cradle head device is improved, and the spherical shell is adopted to replace a solid sphere, so that the material cost is reduced.

In some embodiments of the present utility model, the outer surface of the spherical shell is smaller than a hemispherical surface, a circle of first arc surface opposite to a part of the outer surface of the spherical shell is arranged in the base, and an upper edge of the first arc surface encloses an opening of the movable cavity.

In some embodiments of the present utility model, the base body includes a lower connecting base and an upper connecting base disposed on the lower connecting base, the first circular arc surface is disposed on the upper connecting base, the movable cavity is defined between the lower connecting base and the upper connecting base, and the lower supporting portion is formed on the lower connecting base and extends upwards out of an opening of the movable cavity to be capable of supporting the spherical shell.

In some embodiments of the present utility model, the upper connection seat is provided with a communication channel, the first circular arc surface is formed on an inner peripheral wall of an upper portion of the communication channel, an inner peripheral wall of a lower portion of the communication channel is provided with an inner thread, the lower connection seat is provided with an outer thread matched with the inner thread, and a height space for the spherical shell to swing is provided between an upper surface of the lower connection seat and a lower edge of the first circular arc surface.

In some embodiments of the present utility model, the upper surface of the lower support portion is an arc supporting surface matched with the inner surface of the spherical shell, the side surface of the lower support portion is provided with a corner portion intersecting with the lower edge of the arc supporting surface, and the pushing member is pushed upwards against the spherical shell to deform the spherical shell, so as to drive the inner surface of the spherical shell to abut against the corner portion.

In some embodiments of the present utility model, the lower support portion is provided with a yielding hole penetrating through the lower support portion in a vertical direction, the pushing member is penetrated through the yielding hole through a threaded structure, and the upper end of the pushing member is provided with a protrusion capable of extending upwards from the yielding hole or being accommodated downwards in the yielding hole.

In some embodiments of the present utility model, the pushing member includes a threaded ejector rod screwed to the base along a vertical direction, a lower end of the threaded ejector rod extends out of the base, the protruding portion is disposed at an upper end of the threaded ejector rod, a limiting platform is disposed at an upper portion of the yielding hole, and the protruding portion can abut against the limiting platform when being received in the yielding hole.

In some embodiments of the present utility model, the upper end of the pushing member can be abutted upward against the inner surface of the spherical shell along the center line of the opening of the movable cavity, so that the edge of the opening of the movable cavity can be fully contacted with the outer surface of the spherical shell.

In some embodiments of the present utility model, the connecting rod is disposed on an outer surface of the spherical shell, and a length direction of the connecting rod is disposed to extend in a radial direction of the spherical shell.

In some embodiments of the utility model, the spherical shell and the connecting rod are of unitary construction.

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

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view illustrating an internal structure of a cradle head device according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

fig. 3 is a schematic diagram of a holder device in the prior art.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, a cradle head device according to an embodiment of the present utility model includes: the seat body 100, the seat body 100 is equipped with the ascending movable chamber 101 of opening, the rotatable spherical shell 200 that is provided with in the movable chamber 101, the spherical shell 200 is connected with the connecting rod 300 that stretches out along the opening in movable chamber 101, the one end that the spherical shell 200 was kept away from to connecting rod 300 is used for installing external photographic arrangement or projection arrangement, when the relative seat body 100 of spherical shell 200 rotates, the connecting rod 300 can freely swing in the opening scope of movable chamber 101, the opening edge in movable chamber 101 can prevent that the spherical shell 200 breaks away from movable chamber 101, the inside of seat body 100 is equipped with the lower support 400 that can contact with the internal surface of spherical shell 200, be equipped with ejector 500 on the seat body 100, ejector 500 can support in order to make the opening edge in movable chamber 101 contact with the surface of spherical shell 200 and order to drive spherical shell 200 centre gripping between the opening edge in movable chamber 101 and lower support 400.

When the holder device needs to lock the angle position of the external equipment on the connecting rod 300, the pushing piece 500 is propped against the inner surface of the spherical shell 200, so that the outer surface of the spherical shell 200 is tightly matched with the opening edge of the movable cavity 101, meanwhile, the spherical shell 200 is stressed to generate certain deformation, so that the part of the spherical shell 200 below the opening edge of the movable cavity 101 is folded inwards, the inner surface of the spherical shell 200 is utilized to clamp the lower support 400, namely, larger friction force exists between the lower support 400 and the inner surface of the spherical shell 200 and between the opening edge of the movable cavity 101 and the outer surface of the spherical shell 200, and the locking force of the holder device is improved. It should be noted that, when the pushing member 500 does not abut against the inner surface of the spherical shell 200, the lower supporting portion 400 supports the spherical shell 200, and during the process of moving the pushing member 500 towards the inner surface of the spherical shell 200, the lower supporting portion 400 is gradually separated from the inner surface of the spherical shell 200, and when the pushing member 500 abuts against the inner surface of the spherical shell 200 and deforms the spherical shell 200, the inner surface of the spherical shell 200 can abut against a portion of the position of the lower supporting portion 400.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the outer surface of the spherical shell 200 is smaller than a hemispherical surface, and a circle of first circular arc surfaces 122 opposite to a part of the outer surface of the spherical shell 200 is provided in the base 100, and an upper edge of the first circular arc surfaces 122 encloses an opening of the movable cavity 101. It can be appreciated that, when the angle of the connecting rod 300 is adjusted, the outer surface of the spherical shell 200 rotates relatively on the first arc surface 122, and for the situation that the angle adjustment range of the connecting rod 300 is smaller, the outer surface of the spherical shell 200 is smaller than the hemispherical surface, which is beneficial to further reducing the material cost, reducing the overall height dimension of the cradle head device, and being convenient for carrying and using the cradle head device. The outer surface of the spherical shell 200 is smaller than a hemispherical surface, the first arc surface 122 cannot limit the spherical shell 200 to move downward, and the lower support portion 400 can function to support the spherical shell 200. The meaning that the outer surface of the spherical shell 200 is smaller than the hemispherical surface is: the outer surface of the spherical shell 200 has an area smaller than half of a sphere of the same outer diameter size, i.e., the outer surface of the spherical shell 200 is spherical in a crown shape.

Referring to fig. 2, in some embodiments of the present utility model, the base body 100 includes a lower connecting base 110 and an upper connecting base 120 disposed on the lower connecting base 110, the first arc surface 122 is disposed on the upper connecting base 120, a movable cavity 101 is defined between the lower connecting base 110 and the upper connecting base 120, and a lower supporting portion 400 is formed on the lower connecting base 110 and extends upward from an opening of the movable cavity 101 to be capable of supporting the spherical shell 200. The base body 100 is composed of the lower connecting base 110 and the upper connecting base 120 which are separately arranged, so that the production and processing difficulty of the movable cavity 101 is reduced, the lower supporting portion 400 is formed on the lower connecting base 110, the production process is simplified, and preferably, the lower supporting portion 400 and the lower connecting base 110 are of an integral injection molding structure or an integral metal structure.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the upper connection socket 120 is provided with a communication channel 121, the first circular arc surface 122 is formed on the inner circumferential wall of the upper portion of the communication channel 121, which is advantageous in simplifying the manufacturing process, the inner circumferential wall of the lower portion of the communication channel 121 is provided with an internal thread 123, and the lower connection socket 110 is provided with an external thread 111 matched with the internal thread 123, which facilitates assembling the upper connection socket 120 and the lower connection socket 110 together, and a height space for the spherical shell 200 to swing is provided between the upper surface of the lower connection socket 110 and the lower edge of the first circular arc surface 122.

When the spherical shell 200 is assembled, the spherical shell 200 is placed on the lower support 400, then the upper connecting seat 120 is assembled on the lower connecting seat 110 by matching the internal thread 123 and the external thread 111, and meanwhile, the connecting rod 300 passes through the upper end of the communication channel 121 upwards, namely, the connecting rod 300 stretches out of the opening of the movable cavity 101 upwards, the first arc surface 122 can be contacted with the outer surface of the spherical shell 200, and the spherical shell 200 can universally rotate in the movable cavity 101.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the upper surface of the lower support portion 400 is a circular arc supporting surface 410 matching with the inner surface of the spherical shell 200, the side surface of the lower support portion 400 has a corner 420 intersecting with the lower edge of the circular arc supporting surface 410, and the pushing member 500 pushes up against the spherical shell 200 to deform the spherical shell 200, so as to drive the inner surface of the spherical shell 200 to abut against the corner 420. It will be appreciated that when the pushing member 500 does not contact the spherical shell 200, the inner surface of the spherical shell 200 is placed on the circular arc supporting surface 410, a space for the spherical shell 200 to deform is provided between the side surface of the lower supporting portion 400 and the inner surface of the spherical shell 200, and when the pushing member 500 is pushed up against the spherical shell 200 to deform the spherical shell 200, the outer surface of the spherical shell 200 is pushed against the opening of the movable cavity 101, and the lower portion of the spherical shell 200 is folded inward to clamp the corner 420, so that the spherical shell 200 is clamped between the corner 420 and the opening edge of the movable cavity 101.

Referring to fig. 2, in some embodiments of the present utility model, the lower support portion 400 is provided with a yielding hole 430 penetrating through the lower support portion in a vertical direction, the pushing member 500 is threaded through the yielding hole 430, and a protrusion 520 capable of extending upward from the yielding hole 430 or being received in the yielding hole 430 is provided at an upper end of the pushing member 500. Wherein, the hole 430 is penetrated from top to bottom along the middle of the lower support 400, the pushing member 500 is propped against the middle of the spherical shell 200 after passing through the hole 430, which is favorable to improving the compactness of the cradle head device, and is also favorable to the uniform stress of the spherical shell 200, a circle of friction area in close contact can be formed between the outer surface of the spherical shell 200 and the opening edge of the movable cavity 101, a circle of friction area in close contact can also be formed between the inner surface of the spherical shell 200 and the corner 420, thus greatly improving the locking force of the cradle head device and ensuring the stable installation of external devices on the connecting rod 300.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the pushing member 500 includes a threaded rod 510 screwed to the base 100 along a vertical direction, a lower end of the threaded rod 510 extends out of the base 100, a protrusion 520 is disposed at an upper end of the threaded rod 510, a limiting platform 431 is disposed at an upper portion of the yielding hole 430, and the protrusion 520 can abut against the limiting platform 431 when being received in the yielding hole 430. Wherein, the lower end of the screw push rod 510 is connected with a knob member 511, and when the knob member 511 is rotated, the screw push rod 510 moves in a feeding direction up and down, and the convex part 520 pushes up against the inner surface of the spherical shell 200 or moves away from the inner surface of the spherical shell 200 downward. The setting of spacing platform 431 can prevent that screw ejector 510 from coming off from pedestal 100, also can reduce the number of turns that screw ejector 510 required again, facilitates the use.

Referring to fig. 1, in some embodiments of the present utility model, the upper end of the pushing member 500 can be pushed up against the inner surface of the spherical shell 200 along the center line of the opening of the movable chamber 101, so that the opening edge of the movable chamber 101 can be entirely contacted with the outer surface of the spherical shell 200.

The pushing piece 500 is propped against the inner surface of the spherical shell 200 upwards along the center line of the opening of the movable cavity 101, so that the opening edge of the movable cavity 101 can be completely contacted with the outer surface of the spherical shell 200, the contact gap between the outer surface of the spherical shell 200 and each position of the opening edge of the movable cavity 101 is more uniform, the propping force is more even, a circle of friction area in tight contact can be formed between the outer surface of the spherical shell 200 and the opening edge of the movable cavity 101, the opening edge of the movable cavity 101 is in a state of tightly clasping the spherical shell 200, the locking force on the spherical shell 200 is improved, and the cradle head device can be suitable for application occasions with larger loads, and ensures the stability of projection work or photographic work.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the connecting rod 300 is provided at an outer surface of the spherical shell 200, and a length direction of the connecting rod 300 is extended along a radial direction of the spherical shell 200, so that the connecting rod 300 can swing the same angle toward different directions under a limit action of an opening of the movable chamber 101 to widen an angle adjustment range of the connecting rod 300 as much as possible.

In some embodiments of the present utility model, in order to simplify the manufacturing and assembling process while improving the connection strength between the connecting rod 300 and the spherical shell 200, the spherical shell 200 and the connecting rod 300 are integrally constructed.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cradle head device, comprising:

pedestal (100), pedestal (100) are equipped with ascending movable chamber (101) of opening, rotatable be provided with spherical shell (200) in movable chamber (101), spherical shell (200) are connected with along connecting rod (300) that the opening of movable chamber (101) stretches out, the opening edge of movable chamber (101) can prevent spherical shell (200) break away from movable chamber (101), the inside of pedestal (100) be equipped with can with lower support portion (400) that the internal surface of spherical shell (200) contacted, be equipped with on pedestal (100) and push away piece (500), push away piece (500) can support in the internal surface of spherical shell (200) so that the opening edge of movable chamber (101) with the surface of spherical shell (200) contacts and drives spherical shell (200) centre gripping in between the opening edge of movable chamber (101) and lower support portion (400).

2. The holder device of claim 1, wherein:

the outer surface of the spherical shell (200) is smaller than a hemispherical surface, a circle of first arc surface (122) opposite to part of the outer surface of the spherical shell (200) is arranged in the base body (100), and the upper edge of the first arc surface (122) encloses an opening of the movable cavity (101).

3. A holder apparatus according to claim 2, wherein:

the pedestal (100) comprises a lower connecting seat (110) and an upper connecting seat (120) arranged on the lower connecting seat (110), the first arc surface (122) is arranged on the upper connecting seat (120), the movable cavity (101) is defined between the lower connecting seat (110) and the upper connecting seat (120), and the lower supporting part (400) is formed on the lower connecting seat (110) and extends upwards out of an opening of the movable cavity (101) so as to support the spherical shell (200).

4. A holder apparatus according to claim 3, wherein:

the upper connecting seat (120) is provided with a communication channel (121), a first arc surface (122) is formed on the inner peripheral wall of the upper portion of the communication channel (121), an inner thread (123) is arranged on the inner peripheral wall of the lower portion of the communication channel (121), the lower connecting seat (110) is provided with an outer thread (111) matched with the inner thread (123), and a height space for the spherical shell (200) to swing is formed between the upper surface of the lower connecting seat (110) and the lower edge of the first arc surface (122).

5. The holder device of claim 1, wherein:

the upper surface of the lower support part (400) is an arc supporting surface (410) matched with the inner surface of the spherical shell (200), the side surface of the lower support part (400) is provided with a corner part (420) intersected with the lower edge of the arc supporting surface (410), and the pushing part (500) is propped against the spherical shell (200) upwards to deform the spherical shell (200) so as to drive the inner surface of the spherical shell (200) to prop against the corner part (420).

6. The holder device of claim 5, wherein:

the lower support part (400) is provided with a yielding hole (430) penetrating through the lower support part in the vertical direction, the pushing piece (500) penetrates through the yielding hole (430) through a threaded structure, and the upper end of the pushing piece (500) is provided with a convex part (520) which can extend upwards out of the yielding hole (430) or be contained downwards in the yielding hole (430).

7. The holder device of claim 6, wherein:

the pushing piece (500) comprises a threaded ejector rod (510) which is in threaded connection with the base body (100) along the vertical direction, the lower end of the threaded ejector rod (510) extends out of the base body (100), the convex part (520) is arranged at the upper end of the threaded ejector rod (510), a limiting platform (431) is arranged at the upper part of the yielding hole (430), and the convex part (520) can be propped against the limiting platform (431) when being downwards contained in the yielding hole (430).

8. The holder device of claim 1, wherein:

the upper end of the pushing piece (500) can be propped against the inner surface of the spherical shell (200) upwards along the central line of the opening of the movable cavity (101), so that the opening edge of the movable cavity (101) can be fully contacted with the outer surface of the spherical shell (200).

9. The holder device of claim 1, wherein:

the connecting rod (300) is arranged on the outer surface of the spherical shell (200), and the length direction of the connecting rod (300) is extended along the radial direction of the spherical shell (200).

10. The holder device of claim 9, wherein:

the spherical shell (200) and the connecting rod (300) are of an integrated structure.

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