WO2024103514A1 - 一种云台装置 - Google Patents

一种云台装置 Download PDF

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Publication number
WO2024103514A1
WO2024103514A1 PCT/CN2023/071323 CN2023071323W WO2024103514A1 WO 2024103514 A1 WO2024103514 A1 WO 2024103514A1 CN 2023071323 W CN2023071323 W CN 2023071323W WO 2024103514 A1 WO2024103514 A1 WO 2024103514A1
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WO
WIPO (PCT)
Prior art keywords
spherical shell
pan
active cavity
opening
tilt device
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PCT/CN2023/071323
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English (en)
French (fr)
Inventor
温文辉
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中山宝益五金塑胶制品有限公司
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Publication of WO2024103514A1 publication Critical patent/WO2024103514A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand

Definitions

  • the invention relates to a pan/tilt device.
  • a pan head In photography or projection work, a pan 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 pan head is generally set up to adjust the angle position.
  • a conventional spherical head includes a mounting seat 100, wherein a spherical cavity opening upward is provided in the mounting seat 100, a ball head 600 rotatable at multiple angles is provided in the spherical cavity, the ball head 600 is connected to a connecting rod 400 extending along the opening of the spherical cavity, a threaded push rod 310 is provided on the side of the mounting seat 100, an end of the threaded push 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 push rod 310 and the ball head 600.
  • the inclined push block 500 can tilt and lift the ball head 600 upward, so that the surface of the ball head 600 is pressed tightly against the opening edge of the spherical cavity 101.
  • the ball head 600 is a solid ball, and the locking force between the surface of the ball head 600 and the opening edge of the spherical cavity 101 is small, which is difficult to cope with the working condition of a large load connected by the connecting rod 400.
  • the ball head 600 is a complete sphere, the height dimension of this spherical head is large, which neither saves materials nor is it convenient to carry and use.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pan/tilt device which saves materials and has a large locking force.
  • a pan-tilt device includes: a seat body, the seat body is provided with an active cavity opening upward, a spherical shell is rotatably arranged in the active cavity, the spherical shell is connected to a connecting rod extending along the opening of the active cavity, the opening edge of the active cavity can prevent the spherical shell from escaping from the active cavity, the interior of the seat body is provided with a lower supporting part capable of contacting the inner surface of the spherical shell, the seat body is provided with a pushing piece, the pushing piece can abut against the inner surface of the spherical shell so that the opening edge of the active cavity contacts the outer surface of the spherical shell and drives the spherical shell to be clamped between the opening edge of the active cavity and the lower supporting part.
  • a pan/tilt device according to an embodiment of the present invention has at least the following beneficial effects:
  • the pushing piece presses 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 active cavity.
  • the spherical shell is deformed to a certain extent under the force so that the part of the spherical shell located below the opening edge of the active cavity is retracted inward, so that the inner surface of the spherical shell is used to clamp the lower supporting part, that is, there is a large friction between the lower supporting part and the inner surface of the spherical shell, and between the opening edge of the active cavity and the outer surface of the spherical shell, thereby improving the locking force of the pan-tilt device.
  • using a spherical shell instead of a solid sphere is beneficial to reducing material costs.
  • the outer surface of the spherical shell is smaller than the hemispherical surface
  • the seat body is provided with a first arc surface opposite to part of the outer surface of the spherical shell, and the upper edge of the first arc surface surrounds the opening of the active cavity.
  • the seat body includes a lower connecting seat and an upper connecting seat arranged on the lower connecting seat, the first arc surface is arranged on the upper connecting seat, the active cavity is defined between the lower connecting seat and the upper connecting seat, and the lower supporting portion is formed on the lower connecting seat and extends upward from the opening of the active cavity so as to support the spherical shell.
  • the upper connecting seat is provided with a connecting channel
  • the first arc surface is formed on the inner circumferential wall of the upper part of the connecting channel
  • the inner circumferential wall of the lower part of the connecting channel is provided with an internal thread
  • the lower connecting seat is provided with an external thread matching the internal thread
  • the upper surface of the lower supporting portion is an arc support surface that matches the inner surface of the spherical shell
  • the side surface of the lower supporting portion has an angular portion that intersects with the lower edge of the arc support surface.
  • the lower supporting portion is provided with a clearance hole penetrating therein in a vertical direction
  • the pushing member is penetrated through the clearance hole via a threaded structure
  • the upper end of the pushing member is provided with a protrusion that can extend upward from the clearance hole or be received downward in the clearance hole.
  • the pushing member includes a threaded push rod threadedly connected to the seat body in a vertical direction, the lower end of the threaded push rod extends out of the seat body, the protrusion is arranged at the upper end of the threaded push rod, and a limiting platform is provided at the upper part of the yielding perforation, and the protrusion can abut against the limiting platform when it is downwardly accommodated in the yielding perforation.
  • the upper end of the push member can press upward against the inner surface of the spherical shell along the center line of the opening of the active cavity, so that the opening edge of the active cavity can completely contact the outer surface of the spherical shell.
  • the connecting rod is disposed on the outer surface of the spherical shell, and the length direction of the connecting rod extends along the radial direction of the spherical shell.
  • the spherical shell and the connecting rod are an integral structure.
  • FIG1 is a schematic diagram of the internal structure of a pan/tilt device according to an embodiment of the present invention.
  • FIG2 is a schematic diagram of the structural decomposition of the embodiment of FIG1 ;
  • FIG. 3 is a schematic diagram of a pan/tilt device in the prior art.
  • orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside”, etc. are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
  • “several” means one or more, “more” means more than two, “greater than”, “less than”, “exceed” etc. are understood to exclude the number itself, and “above”, “below”, “within” etc. are understood to include the number itself. If there is a description of "first” or “second”, it is only used for the purpose of distinguishing the technical features, and 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.
  • the terms “installed”, “connected”, and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • a pan/tilt device comprises: a seat body 100, the seat body 100 is provided with an active cavity 101 with an opening upward, a spherical shell 200 is rotatably provided in the active cavity 101, the spherical shell 200 is connected with a connecting rod 300 extending along the opening of the active cavity 101, and the end of the connecting rod 300 away from the spherical shell 200 is used to install an external photographic device or a projection device, when the spherical shell 200 rotates relative to the seat body 100, the connecting rod 300 can swing freely within the opening range of the active cavity 101, and the opening edge of the active cavity 101 can prevent the spherical shell 200 from escaping from the active cavity 101, and the interior of the seat body 100 is provided with a connecting rod 300 that can The lower supporting portion 400 contacts the inner surface of the spherical shell 200, and a pushing piece 500 is provided on the seat body 100.
  • the pushing piece 500 can push against the inner surface of the spherical shell 200 to make the opening edge of the active cavity 101 contact the outer surface of the spherical shell 200 and drive the spherical shell 200 to be clamped between the opening edge of the active cavity 101 and the lower supporting portion 400.
  • the pushing piece 500 presses 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 active cavity 101.
  • the spherical shell 200 is deformed to a certain extent by the force so that the part of the spherical shell 200 located below the opening edge of the active cavity 101 is retracted inward, so that the inner surface of the spherical shell 200 is used to clamp the lower supporting part 400, that is, there is a large friction force between the lower supporting part 400 and the inner surface of the spherical shell 200, and between the opening edge of the active cavity 101 and the outer surface of the spherical shell 200, thereby improving the locking force of the pan-tilt device, and using the spherical shell 200 instead of a solid sphere is conducive to reducing material costs.
  • the lower supporting portion 400 holds up the spherical shell 200. In the process of the pushing member 500 moving toward the inner surface of the spherical shell 200, the lower supporting portion 400 gradually separates from the inner surface of the spherical shell 200.
  • 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 be pressed tightly against part of the lower supporting portion 400.
  • the outer surface of the spherical shell 200 is smaller than the hemispherical surface, and a first arc surface 122 is provided in the seat body 100, which is opposite to a part of the outer surface of the spherical shell 200, and the upper edge of the first arc surface 122 forms the opening of the active cavity 101. It can be understood 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.
  • the outer surface of the spherical shell 200 is smaller than the hemispherical surface, which is beneficial to further reduce the material cost, and is also beneficial to reduce the overall height size of the pan-tilt device, making it easier to carry and use the pan-tilt device.
  • the first arc surface 122 cannot limit the downward movement of the spherical shell 200, and the lower support portion 400 can play the role of supporting the spherical shell 200.
  • the outer surface of the spherical shell 200 is smaller than a hemispherical surface, which means that the area of the outer surface of the spherical shell 200 is smaller than half of a sphere with the same outer diameter, that is, the outer surface of the spherical shell 200 is in the shape of a spherical crown.
  • the seat body 100 includes a lower connecting seat 110 and an upper connecting seat 120 disposed on the lower connecting seat 110, the first arc surface 122 is disposed on the upper connecting seat 120, the lower connecting seat 110 and the upper connecting seat 120 define an active cavity 101, and the lower supporting portion 400 is formed on the lower connecting seat 110 and extends upward from the opening of the active cavity 101 to support the spherical shell 200.
  • the seat body 100 is composed of the lower connecting seat 110 and the upper connecting seat 120 which are separately disposed, which is conducive to reducing the difficulty of production and processing of the active cavity 101, and the lower supporting portion 400 is formed on the lower connecting seat 110, which is conducive to simplifying the production process.
  • the lower supporting portion 400 and the lower connecting seat 110 are an integral injection molding structure or an integral metal structure.
  • the upper connecting seat 120 is provided with a connecting channel 121, and the first arc surface 122 is formed on the inner circumferential wall of the upper part of the connecting channel 121, which is conducive to simplifying the production process.
  • the inner circumferential wall of the lower part of the connecting channel 121 is provided with an internal thread 123
  • the lower connecting seat 110 is provided with an external thread 111 matching the internal thread 123, which is convenient for assembling the upper connecting seat 120 and the lower connecting seat 110 together, and there is a height space between the upper surface of the lower connecting seat 110 and the lower edge of the first arc surface 122 for the spherical shell 200 to swing.
  • the upper surface of the lower supporting portion 400 is a circular arc support surface 410 that matches the inner surface of the spherical shell 200, and the side surface of the lower supporting portion 400 has an angular portion 420 that intersects with the lower edge of the circular arc support surface 410.
  • the pushing member 500 presses upward against the spherical shell 200 to deform the spherical shell 200, thereby driving the inner surface of the spherical shell 200 to press against the angular portion 420.
  • the lower support part 400 is provided with a clearance hole 430 penetrating the interior thereof in the vertical direction, the push piece 500 is penetrated through the clearance hole 430 through a threaded structure, and the upper end of the push piece 500 is provided with a convex portion 520 that can extend upward from the clearance hole 430 or be accommodated downward in the clearance hole 430.
  • the clearance hole 430 is arranged to penetrate up and down along the middle part of the lower support part 400, and the push piece 500 abuts against the middle part of the spherical shell 200 after passing through the clearance hole 430, which is conducive to improving the structural compactness of the pan-tilt device and also conducive to uniform force on the spherical shell 200.
  • a circle of tightly contacting friction area can be formed between the outer surface of the spherical shell 200 and the opening edge of the active cavity 101, and a circle of tightly contacting friction area can also be formed between the inner surface of the spherical shell 200 and the above-mentioned angular portion 420, which greatly improves the locking force of the pan-tilt device and ensures the stable installation of the external device on the connecting rod 300.
  • the push member 500 includes a threaded push rod 510 that is threadedly connected to the seat body 100 in a vertical direction, the lower end of the threaded push rod 510 extends out of the seat body 100, the convex portion 520 is provided at the upper end of the threaded push rod 510, and a limiting platform 431 is provided at the upper part of the clearance through hole 430, and the convex portion 520 can abut against the limiting platform 431 when it is received downward in the clearance through hole 430.
  • the lower end of the threaded push rod 510 is connected to a knob 511, and when the knob 511 is turned, the threaded push rod 510 moves in a vertical direction, and the convex portion 520 presses against the inner surface of the spherical shell 200 upward or moves away from the inner surface of the spherical shell 200 downward.
  • the setting of the limiting platform 431 can prevent the threaded push rod 510 from falling off the seat body 100, and can also reduce the number of turns required to tighten the threaded push rod 510 again, which is convenient for use.
  • the upper end of the push member 500 can press upward against the inner surface of the spherical shell 200 along the center line of the opening of the active cavity 101, so that the opening edge of the active cavity 101 can completely contact the outer surface of the spherical shell 200.
  • the pushing member 500 presses upward against the inner surface of the spherical shell 200 along the center line of the opening of the active cavity 101, so that the opening edge of the active cavity 101 can all contact the outer surface of the spherical shell 200, and the gaps between the outer surface of the spherical shell 200 and the opening edge of the active cavity 101 at various positions are more uniform, and the pressing force is more even.
  • a circle of tightly contacted friction area can be formed between the outer surface of the spherical shell 200 and the opening edge of the active cavity 101, so that the opening edge of the active cavity 101 is in a state of hugging the spherical shell 200, which is beneficial to improve the locking force of the spherical shell 200.
  • the pan-tilt device can be suitable for applications with large loads to ensure the stability of projection or photography.
  • the connecting rod 300 is arranged on the outer surface of the spherical shell 200, and the length direction of the connecting rod 300 extends along the radial direction of the spherical shell 200, so that the connecting rod 300 can swing in different directions at the same angle under the limiting action of the opening of the active cavity 101, so as to widen the angle adjustment range of the connecting rod 300 as much as possible.
  • the spherical shell 200 and the connecting rod 300 are an integral structure.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accessories Of Cameras (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

一种云台装置，包括：座体（100），座体（100）设有开口向上的活动腔（101），活动腔（101）内可转动设置有球面壳（200），球面壳（200）连接有沿活动腔（101）的开口伸出的连杆（300），活动腔（101）的开口边缘能够阻止球面壳（200）脱离活动腔（101），座体（100）的内部设有能够与球面壳（200）的内表面相接触的下托部（400），座体（100）上设有顶推件（500），顶推件（500）能够抵顶于球面壳（200）的内表面以使活动腔（101）的开口边缘与球面壳（200）的外表面相接触以及驱使球面壳（200）夹持于活动腔（101）的开口边缘与下托部（400）之间，从而提升云台装置的锁紧力，而且有利于降低材料成本。

Description

一种云台装置 技术领域
本发明涉及一种云台装置。
背景技术
在摄影工作或者投影工作中，经常会使用云台来安装摄影机或者投影机等外接设备，为了调整拍摄或者投影的方向，一般会设置球形云台来实现角度位置的调整。
参见图3，传统的球形云台包括安装座100，安装座100内设有开口向上的球形腔，球形腔内设有可多角度转动的球头600，球头600连接有沿球形腔的开口伸出的连杆400，安装座100的侧部设置螺纹顶杆310，螺纹顶杆310的端部伸入球形腔内，球形腔内设有位于螺纹顶杆310的端部与球头600之间的斜面推块500。
当螺纹顶杆310朝向球形腔的内部推动斜面推块500时，斜面推块500能够倾斜地向上托起球头600，以使球头600的表面顶紧于球形腔101的开口边缘。其中，球头600为实心球，球头600的表面与球形腔101的开口边缘之间的锁紧力较小，难以应对连杆400连接的载荷较大的工况。并且，由于球头600为完整的球体，导致这种球形云台的高度尺寸较大，既不节省材料，又不便于携带和使用。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种节约材料、锁紧力较大的云台装置。
根据本发明实施例的一种云台装置，包括：座体，所述座体设有开口向上的活动腔，所述活动腔内可转动设置有球面壳，所述球面壳连接有沿所述活动腔的开口伸出的连杆，所述活动腔的开口边缘能够阻止所述球面壳脱离所述活动腔，所述座体的内部设有能够与所述球面壳的内表面相接触的下托部，所述座体上设有顶推件，所述顶推件能够抵顶于所述球面壳的内表面以使所述活动腔的开口边缘与所述球面壳的外表面相接触以及驱使所述球面壳夹持于所述活动腔的开口边缘与所述下托部之间。
根据本发明实施例的一种云台装置，至少具有如下有益效果：
以上云台装置在需要锁定连杆上的外接设备的角度位置时，由顶推件抵顶在球面壳的内 表面，使得球面壳的外表面与活动腔的开口边缘相紧配，同时球面壳受力产生一定的变形以使得球面壳位于活动腔的开口边缘的下方的部分向内收拢，从而利用球面壳的内表面夹紧下托部，即下托部与球面壳的内表面之间、活动腔的开口边缘与球面壳的外表面之间均存在较大的摩擦力，从而提升云台装置的锁紧力，而且采用球面壳替代实心球体有利于降低材料成本。
在本发明的一些实施例中，所述球面壳的外表面小于半球面，所述座体内设有一圈与所述球面壳的部分外表面相对的第一圆弧面，所述第一圆弧面的上边沿围成所述活动腔的开口。
在本发明的一些实施例中，所述座体包括下连接座和设于所述下连接座的上连接座，所述第一圆弧面设于所述上连接座，所述下连接座与所述上连接座之间限定出所述活动腔，所述下托部成型于所述下连接座并向上伸出于所述活动腔的开口以能够支撑所述球面壳。
在本发明的一些实施例中，所述上连接座设有连通通道，所述第一圆弧面成型于所述连通通道的上部的内周壁，所述连通通道的下部的内周壁设有内螺纹，所述下连接座设有与所述内螺纹相配合的外螺纹，所述下连接座的上表面与所述第一圆弧面的下边沿之间具有供所述球面壳摆动的高度空间。
在本发明的一些实施例中，所述下托部的上表面为与所述球面壳的内表面相匹配的圆弧支撑面，所述下托部的侧面具有与所述圆弧支撑面的下边缘相交的棱角部，所述顶推件向上抵顶于所述球面壳以使所述球面壳变形，进而驱使所述球面壳的内表面与所述棱角部相抵靠。
在本发明的一些实施例中，所述下托部设有沿竖直方向贯穿其内部的让位穿孔，所述顶推件通过螺纹结构穿设于所述让位穿孔，所述顶推件的上端设有能够向上伸出于所述让位穿孔或者向下收容于所述让位穿孔的凸部。
在本发明的一些实施例中，所述顶推件包括沿竖直方向螺纹连接于所述座体的螺纹顶杆，所述螺纹顶杆的下端伸出于所述座体之外，所述凸部设于所述螺纹顶杆的上端，所述让位穿孔的上部设有限位平台，所述凸部向下收容于所述让位穿孔时能够抵靠于所述限位平台。
在本发明的一些实施例中，所述顶推件的上端能够沿所述活动腔的开口的中心线向上抵顶于所述球面壳的内表面，以使所述活动腔的开口边缘能够全部接触于所述球面壳的外表面。
在本发明的一些实施例中，所述连杆设于所述球面壳的外表面，所述连杆的长度方向沿所述球面壳的径向方向延伸设置。
在本发明的一些实施例中，所述球面壳和所述连杆为一体结构。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明的云台装置的一种实施例的内部结构示意图；
图2为图1实施例的结构分解示意图；
图3为现有技术的云台装置的示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，若干的含义是一个或者多个，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
参见图1和图2，本发明实施例的一种云台装置，包括：座体100，座体100设有开口向上的活动腔101，活动腔101内可转动设置有球面壳200，球面壳200连接有沿活动腔101的开口伸出的连杆300，连杆300远离球面壳200的一端用于安装外接的摄影设备或者投影设备，当球面壳200相对座体100转动时，连杆300能够在活动腔101的开口范围之内自由摆动，活动腔101的开口边缘能够阻止球面壳200脱离活动腔101，座体100的内部设有能够 与球面壳200的内表面相接触的下托部400，座体100上设有顶推件500，顶推件500能够抵顶于球面壳200的内表面以使活动腔101的开口边缘与球面壳200的外表面相接触以及驱使球面壳200夹持于活动腔101的开口边缘与下托部400之间。
以上云台装置在需要锁定连杆300上的外接设备的角度位置时，由顶推件500抵顶在球面壳200的内表面，使得球面壳200的外表面与活动腔101的开口边缘相紧配，同时球面壳200受力产生一定的变形以使得球面壳200位于活动腔101的开口边缘的下方的部分向内收拢，从而利用球面壳200的内表面夹紧下托部400，即下托部400与球面壳200的内表面之间、活动腔101的开口边缘与球面壳200的外表面之间均存在较大的摩擦力，从而提升云台装置的锁紧力，而且采用球面壳200替代实心球体有利于降低材料成本。需要说明的是，当顶推件500未抵靠在球面壳200的内表面时，下托部400托起球面壳200，在顶推件500朝向球面壳200的内表面移动的过程中，下托部400逐渐地与球面壳200的内表面相分离，当顶推件500抵顶在球面壳200的内表面并使球面壳200发生变形后，球面壳200的内表面即可顶紧于下托部400的部分位置。
参见图1和图2，在本发明的一些实施例中，球面壳200的外表面小于半球面，座体100内设有一圈与球面壳200的部分外表面相对的第一圆弧面122，第一圆弧面122的上边沿围成活动腔101的开口。可以理解的是，当连杆300角度调节时，球面壳200的外表面在第一圆弧面122上相对转动，对于连杆300的角度调节幅度较小的情况，球面壳200的外表面小于半球面有利于进一步降低用料成本，也有利于减小云台装置的整体的高度尺寸，便于携带和使用云台装置。其中，由于球面壳200的外表面小于半球面，第一圆弧面122无法限制球面壳200向下移动，而下托部400则能够起到承托球面壳200的作用。需要说明的是，球面壳200的外表面小于半球面的意思为：球面壳200的外表面的面积小于同等外径尺寸的球体的一半，即球面壳200的外表面呈球冠状。
参见图2，在本发明的一些实施例中，座体100包括下连接座110和设于下连接座110的上连接座120，第一圆弧面122设于上连接座120，下连接座110与上连接座120之间限定出活动腔101，下托部400成型于下连接座110并向上伸出于活动腔101的开口以能够支撑球面壳200。座体100由分体设置的下连接座110和上连接座120组成有利于降低活动腔101的生产加工难度，下托部400成型于下连接座110有利于简化生产工序，优选地，下托部400和下连接座110为一体注塑结构或者一体金属结构。
参见图1和图2，在本发明的一些实施例中，上连接座120设有连通通道121，第一圆弧面122成型于连通通道121的上部的内周壁有利于简化生产工序，连通通道121的下部的内 周壁设有内螺纹123，下连接座110设有与内螺纹123相配合的外螺纹111，便于将上连接座120和下连接座110组装在一起，下连接座110的上表面与第一圆弧面122的下边沿之间具有供球面壳200摆动的高度空间。
组装球面壳200时，先将球面壳200放在下托部400上，然后利用内螺纹123和外螺纹111相配合将上连接座120组装在下连接座110上，同时令连杆300向上穿过连通通道121的上端，即连杆300向上伸出于活动腔101的开口，第一圆弧面122即可与球面壳200的外表面相接触，球面壳200即可在活动腔101内万向转动。
参见图1和图2，在本发明的一些实施例中，下托部400的上表面为与球面壳200的内表面相匹配的圆弧支撑面410，下托部400的侧面具有与圆弧支撑面410的下边缘相交的棱角部420，顶推件500向上抵顶于球面壳200以使球面壳200变形，进而驱使球面壳200的内表面与棱角部420相抵靠。可以理解的是，当顶推件500未接触球面壳200时，球面壳200的内表面放置在圆弧支撑面410上，下托部400的侧面和球面壳200的内表面之间具有可供球面壳200变形的空间，当顶推件500向上抵顶于球面壳200以使球面壳200变形时，球面壳200的外表面抵顶在活动腔101的开口处，球面壳200的下部向内收拢而夹紧棱角部420，从而形成球面壳200被夹持在棱角部420和活动腔101的开口边缘之间的情况。
参见图2，在本发明的一些实施例中，下托部400设有沿竖直方向贯穿其内部的让位穿孔430，顶推件500通过螺纹结构穿设于让位穿孔430，顶推件500的上端设有能够向上伸出于让位穿孔430或者向下收容于让位穿孔430的凸部520。其中，让位穿孔430沿下托部400的中部上下贯穿设置，顶推件500穿过让位穿孔430后抵靠在球面壳200的中部，有利于提高云台装置的结构紧凑度，也有利于球面壳200受力均匀，球面壳200的外表面与活动腔101的开口边缘之间能够形成一圈紧密接触的摩擦区域，球面壳200的内表面与上述棱角部420之间也能够形成一圈紧密接触的摩擦区域，极大地提高了云台装置的锁紧力，确保连杆300上的外接设备安装稳定。
参见图1和图2，在本发明的一些实施例中，顶推件500包括沿竖直方向螺纹连接于座体100的螺纹顶杆510，螺纹顶杆510的下端伸出于座体100之外，凸部520设于螺纹顶杆510的上端，让位穿孔430的上部设有限位平台431，凸部520向下收容于让位穿孔430时能够抵靠于限位平台431。其中，螺纹顶杆510的下端连接有旋钮件511，转动旋钮件511时，螺纹顶杆510沿上下方向进给运动，凸部520向上顶紧球面壳200的内表面或者向下远离球面壳200的内表面。限位平台431的设置能够防止螺纹顶杆510从座体100上脱落，也能够减少再次拧紧螺纹顶杆510所需的圈数，方便使用。
参见图1，在本发明的一些实施例中，顶推件500的上端能够沿活动腔101的开口的中心线向上抵顶于球面壳200的内表面，以使活动腔101的开口边缘能够全部接触于球面壳200的外表面。
顶推件500沿活动腔101的开口的中心线向上抵顶于球面壳200的内表面，使得活动腔101的开口边缘能够全部接触于球面壳200的外表面，球面壳200的外表面与活动腔101的开口边缘的各个位置相接触的间隙更加均匀、抵紧力更加平均，球面壳200的外表面与活动腔101的开口边缘之间能够形成一圈紧密接触的摩擦区域，使得活动腔101的开口边缘呈抱紧球面壳200的状态，有利于提高对球面壳200的锁紧力，该云台装置能够适用于载荷较大的应用场合，确保投影工作或者摄影工作的稳定性。
参见图1和图2，在本发明的一些实施例中，连杆300设于球面壳200的外表面，连杆300的长度方向沿球面壳200的径向方向延伸设置，使得连杆300能够在活动腔101的开口的限位作用下朝向不同的方向摆动相同的角度，以尽可能地拓宽连杆300的角度调节的范围。
在本发明的一些实施例中，为了简化生产组装工序，同时提高连杆300与球面壳200之间的连接强度，球面壳200和连杆300为一体结构。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种云台装置，其特征在于，包括：
    座体(100)，所述座体(100)设有开口向上的活动腔(101)，所述活动腔(101)内可转动设置有球面壳(200)，所述球面壳(200)连接有沿所述活动腔(101)的开口伸出的连杆(300)，所述活动腔(101)的开口边缘能够阻止所述球面壳(200)脱离所述活动腔(101)，所述座体(100)的内部设有能够与所述球面壳(200)的内表面相接触的下托部(400)，所述座体(100)上设有顶推件(500)，所述顶推件(500)能够抵顶于所述球面壳(200)的内表面以使所述活动腔(101)的开口边缘与所述球面壳(200)的外表面相接触以及驱使所述球面壳(200)夹持于所述活动腔(101)的开口边缘与所述下托部(400)之间。
  2. 根据权利要求1所述的一种云台装置，其特征在于：
    所述球面壳(200)的外表面小于半球面，所述座体(100)内设有一圈与所述球面壳(200)的部分外表面相对的第一圆弧面(122)，所述第一圆弧面(122)的上边沿围成所述活动腔(101)的开口。
  3. 根据权利要求2所述的一种云台装置，其特征在于：
    所述座体(100)包括下连接座(110)和设于所述下连接座(110)的上连接座(120)，所述第一圆弧面(122)设于所述上连接座(120)，所述下连接座(110)与所述上连接座(120)之间限定出所述活动腔(101)，所述下托部(400)成型于所述下连接座(110)并向上伸出于所述活动腔(101)的开口以能够支撑所述球面壳(200)。
  4. 根据权利要求3所述的一种云台装置，其特征在于：
    所述上连接座(120)设有连通通道(121)，所述第一圆弧面(122)成型于所述连通通道(121)的上部的内周壁，所述连通通道(121)的下部的内周壁设有内螺纹(123)，所述下连接座(110)设有与所述内螺纹(123)相配合的外螺纹(111)，所述下连接座(110)的上表面与所述第一圆弧面(122)的下边沿之间具有供所述球面壳(200)摆动的高度空间。
  5. 根据权利要求1所述的一种云台装置，其特征在于：
    所述下托部(400)的上表面为与所述球面壳(200)的内表面相匹配的圆弧支撑面(410)，所述下托部(400)的侧面具有与所述圆弧支撑面(410)的下边缘相交的棱角部(420)，所述顶推件(500)向上抵顶于所述球面壳(200)以使所述球面壳(200)变形，进而驱使所述球面壳(200)的内表面与所述棱角部(420)相抵靠。
  6. 根据权利要求5所述的一种云台装置，其特征在于：
    所述下托部(400)设有沿竖直方向贯穿其内部的让位穿孔(430)，所述顶推件(500) 通过螺纹结构穿设于所述让位穿孔(430)，所述顶推件(500)的上端设有能够向上伸出于所述让位穿孔(430)或者向下收容于所述让位穿孔(430)的凸部(520)。
  7. 根据权利要求6所述的一种云台装置，其特征在于：
    所述顶推件(500)包括沿竖直方向螺纹连接于所述座体(100)的螺纹顶杆(510)，所述螺纹顶杆(510)的下端伸出于所述座体(100)之外，所述凸部(520)设于所述螺纹顶杆(510)的上端，所述让位穿孔(430)的上部设有限位平台(431)，所述凸部(520)向下收容于所述让位穿孔(430)时能够抵靠于所述限位平台(431)。
  8. 根据权利要求1所述的一种云台装置，其特征在于：
    所述顶推件(500)的上端能够沿所述活动腔(101)的开口的中心线向上抵顶于所述球面壳(200)的内表面，以使所述活动腔(101)的开口边缘能够全部接触于所述球面壳(200)的外表面。
  9. 根据权利要求1所述的一种云台装置，其特征在于：
    所述连杆(300)设于所述球面壳(200)的外表面，所述连杆(300)的长度方向沿所述球面壳(200)的径向方向延伸设置。
  10. 根据权利要求9所述的一种云台装置，其特征在于：
    所述球面壳(200)和所述连杆(300)为一体结构。
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