WO2014026391A1 - 投影仪调节座架 - Google Patents

投影仪调节座架 Download PDF

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Publication number
WO2014026391A1
WO2014026391A1 PCT/CN2012/080330 CN2012080330W WO2014026391A1 WO 2014026391 A1 WO2014026391 A1 WO 2014026391A1 CN 2012080330 W CN2012080330 W CN 2012080330W WO 2014026391 A1 WO2014026391 A1 WO 2014026391A1
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WO
WIPO (PCT)
Prior art keywords
plate
traction
seat plate
axis
rotating
Prior art date
Application number
PCT/CN2012/080330
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English (en)
French (fr)
Inventor
吴槐
Original Assignee
Wu Huai
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Publication date
Application filed by Wu Huai filed Critical Wu Huai
Publication of WO2014026391A1 publication Critical patent/WO2014026391A1/zh

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/145—Housing details, e.g. position adjustments thereof

Definitions

  • the invention relates to a projector adjustment mount.
  • suspension and adjustment are usually performed by using a suspension adjusting device.
  • the device is advantageous for saving space for placing the devices, the current suspension adjusting devices
  • the structure is more complicated and not compact. The adjustment of each orientation during the adjustment will cause mutual interference, which requires repeated adjustments and adjustment efficiency.
  • the projector adjusting frame of the invention is characterized in that: a fixed connection positioning seat plate is included
  • the fixed connection positioning seat plate (1) is connected to an adjustable base plate (3) via a ball joint (2), and the adjustable base plate (3) comprises a connector having a ball joint.
  • a rotating plate (8) rotatably connected to the upper vertical plate (4) and the spherical joint (2) and the upper vertical plate of the upper seat plate and fixedly connected to the instrument (7), the upper seat plate (4) being fixedly connected
  • a card member with a relative rotation limit between the positioning seat plates (1) is characterized in that: the fixed connection positioning seat plate (1) is provided with a control for adjusting the adjustable base plate (3) to swing along its X axis.
  • the first set of traction end synchronous retracting and adjusting device (901) is used for control adjustable a second set of traction end synchronous retracting and adjusting device (902) swinging along the Y axis thereof, and a third set of traction end synchronous retracting and adjusting device for controlling the rotating plate to rotate along the x-axis thereof 903).
  • the first, second and third sets of traction end synchronous retracting and adjusting devices (901, 902, 903) respectively comprise a shell tube (10) and a rotating shaft (11) having a knob (12) disposed at an end of the shell tube.
  • the rotating shaft is axially distributed with a pair of left-handed threads (13) and a right-handed thread (14), and the left-handed threads and the right-handed threads are respectively screwed with a threaded sleeve (15), the left-handed rotation
  • the threaded sleeve on the thread and the threaded sleeve on the right-handed thread are respectively connected to the end portions of the two traction ropes which extend into the shell tube, and the axial limit is realized between the shaft and the shell tube by the axial limiting assembly.
  • One of the screw sleeve on the left-handed thread and the screw sleeve on the right-hand thread slides in contact with the inner surface of the upper portion of the shell tube, and the other slides in contact with the inner surface of the lower portion of the shell tube, and the traction rope (17) is threaded through In the sleeve (16), the end of the sleeve is inserted into the slot of the end face of the shell tube.
  • the outer end heads (6) of the two traction ropes of the first set of traction end synchronous retracting and adjusting devices are respectively connected with the positive coordinate position and the negative coordinate position of the upper coordinate plate (4) ⁇ coordinate axis for controlling the adjustable base plate (3) swinging along its X axis; the outer ends of the two traction ropes of the second set of traction end synchronous retracting adjustment device are respectively connected with the positive coordinate position and the negative coordinate position of the X coordinate axis of the upper seat plate (4) for use
  • the adjustable adjustable base plate (3) is swung along its yaw axis; the outer ends of the two traction ropes of the third set of traction end synchronous accommodating adjustment devices are respectively connected with the rotating plate (8) for controlling the rotating plate ( 8) Rotate along its ⁇ axis.
  • the ball joint (2) includes a downward convex spherical surface (18) disposed on a bottom side of the fixed connection positioning seat plate and a spherical concave surface (19) coupled to the lower convex spherical surface coupled to the upper seat plate.
  • One of the ball joints on the upper seat plate includes a ball crown rotating member (20) and a a rotating pin (21) connected to the rotating member of the spherical plate and having the other end passing through the upper seat plate (4) and connected to the rotating plate (8); the other connecting member of the spherical joint is sleeved on the outer surface of the rotating member of the spherical cap and A downwardly convex spherical housing (22) attached to the periphery of the rotating pin and connected to the bottom side of the fixed connecting positioning plate.
  • the fixed connection positioning seat plate is connected with an adjustable base plate via a ball joint
  • the adjustable base plate comprises an upper seat plate having a connecting piece of the ball joint and a vertical line of the opposite ball joint and the upper seat plate a rotating plate that is rotatably connected to the rotating shaft and is fixedly connected to the instrument, and a card member with a relative rotation limit between the upper seat plate and the fixed connecting positioning seat plate; therefore, in the working of the present invention, the three sets of traction ends are respectively synchronously retracted and retracted.
  • the adjustment of the adjusting device can respectively realize the rotation of the rotating plate and the device connected thereto along the X and Y thereof, and the rotation along the Z axis thereof, and the adjusting system is independent and does not interfere with each other;
  • the adjustment of each coordinate axis of the present invention is
  • There is a corresponding independent traction end synchronous retracting and adjusting device which can realize two movements of the two traction ropes by rotating the knob to rotate the screw, and the lifting and discharging actions are smooth and the force is balanced, so the invention has a simple structure. Compact, easy to adjust, fast, and highly accurate.
  • FIG. 1 is a schematic perspective view of an embodiment of the present invention
  • Figure 2 is an exploded view of an embodiment of the present invention
  • Figure 3 is a plan view of the present invention.
  • Figure 4 is a cross-sectional view taken along line AA of Figure 3;
  • Fig. 5 is a perspective view showing the configuration of a traction end synchronous retracting and adjusting device of the present invention. detailed description:
  • the projector adjustment mount of the present invention comprises a fixed connection positioning seat plate 1, the fixed connection positioning seat plate 1 is connected with an adjustable base plate 3 via a ball joint 2, and the adjustable base plate 3 comprises a ball joint.
  • the upper seat plate 4 of one of the connecting members and the rotating plate 8 rotatably connected to the center line of the ball joint 2 and the upper seat plate and fixedly connected to the instrument 7, the upper seat plate 4 and the fixed connection positioning seat plate 1 a card member is provided with a relative rotation limit
  • the fixed connection positioning seat plate 1 is provided with a first group of traction end synchronous retracting and adjusting device 901 for controlling the adjustable base plate 3 to swing along its X axis, A second set of traction end synchronous retracting and adjusting device 902 for controlling the adjustable base plate 3 to swing along its Y axis, and a third group of traction end synchronous retracting and adjusting devices 903 for controlling the rotating plate to rotate along its Z axis.
  • the first, second, and third sets of traction end synchronous retracting and adjusting devices 901, 902, and 903 each include a shell tube 10 and a rotating shaft 11 having a knob 12 at an end portion of the shell tube, the rotating shaft
  • a plurality of left-handed threads 13 and a right-handed thread 14 are disposed along the axial direction, and the left-handed thread and the right-handed thread are respectively screwed with a threaded sleeve 15 on the threaded sleeve and the right-handed thread on the left-handed thread
  • the threaded sleeves are respectively connected to the end portions of the two traction ropes extending into the shell tube, and the shaft and the shell tube are axially constrained by the axial limiting assembly, and the screw sleeve on the left-hand thread is
  • One of the threaded sleeves on the right-handed thread is in contact with the upper inner surface of the shell tube, and the other is in sliding contact with the inner surface of the lower portion of the shell tube.
  • the outer end of the two traction ropes of the first set of traction end synchronous retracting and adjusting device Do not connect with the positive coordinate position and the negative coordinate position of the Y coordinate axis of the upper seat plate for controlling the adjustable base plate 3 to swing along its X axis; the outer ends of the two traction ropes of the second set of traction end synchronous retracting adjustment device
  • the heads are respectively connected with the positive coordinate position and the negative coordinate position of the X coordinate axis of the upper seat plate for controlling the adjustable base plate 3 to swing along the same axis;
  • the third group of traction ends are synchronously arranged outside the two traction ropes of the traction adjusting device
  • the ends are respectively coupled to the rotating plate 8 for controlling the rotation of the rotating plate 8 along its x-axis.
  • the knob of the second traction end synchronous retracting and adjusting device 902 When it is required to realize the swinging of the adjustable base plate 3 along the yaw axis, the knob of the second traction end synchronous retracting and adjusting device 902 is rotated, and the knob drives the screw to rotate, and the two threads on the screw respectively make the two screw sleeves matched with each other in opposite directions Rotating, the traction rope connected with the corresponding screw sleeve is relaxed or tightened, because the outer end 6 of the two traction ropes are respectively connected with the positive coordinate position and the negative coordinate position of the X coordinate axis of the upper seat plate, and the two traction ropes are relaxed. Or when the tension is tightened, the swinging of the adjustable base plate 3 along the boring axis is realized;
  • the knob of the third traction end synchronous retracting and adjusting device 903 When it is required to rotate the rotating plate 8 along the cymbal axis, the knob of the third traction end synchronous retracting and adjusting device 903 is rotated, and the knob drives the screw to rotate, and the two threads on the screw rotate the two screw sleeves that cooperate with each other in opposite directions.
  • the traction rope connected to the corresponding screw sleeve is loosened or tightened, and the outer end of the two traction ropes are respectively connected with the rotating plate 8, thereby realizing the rotation.
  • the plate 8 rotates along the Z axis, so that the rotation of the knob can synchronously control the relaxation of one traction rope, and the traction rope is tightened, the movement of the receiving and discharging is smooth, the force is balanced, and the operation is very convenient.
  • the ball joint 2 includes a downwardly convex spherical surface 18 disposed on the bottom side of the fixed connection positioning seat plate and a spherical concave surface 19 coupled to the lower convex spherical surface coupled to the upper seating plate.
  • One of the ball joints on the upper seat plate includes a spherical cap rotating member 20 and a rotating shaft pin 21 whose one end is connected to the spherical rotating member and the other end passes through the upper seat plate 4 and is connected to the rotating plate 8;
  • a connecting member is a downwardly convex spherical casing 22 which is sleeved on the outer surface of the spherical cap rotating member and around the rotating shaft pin and connected to the bottom side of the fixed connecting positioning plate.
  • the upper seat plate 4 is swung around the X axis, that is, the suspension device (projector or photographic equipment) is wound.
  • the adjusting device realizes the adjustment of the rotating plate and the device connected thereto along the X and Y swings, and the rotation along the Z axis thereof, the adjusting system is independent and does not interfere with each other; in addition, the traction end synchronous retracting adjusting device of the present invention rotates the knob
  • the rotation of the screw can realize two actions of one and two traction ropes, and the movement of the receiving and discharging is smooth and the force is balanced. Therefore, the invention has the advantages of simple structure, compactness, simple and quick adjustment mode. , And adjusting high accuracy significant advantages.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Projection Apparatus (AREA)

Abstract

投影仪调节座架，包括一固定连接定位座板（1）。所述固定连接定位座板通过球形接头（2）与一可调节底座板（3）连接。所述可调节底座板（3）包括上座板（4）和转动板（8），所述上座板具有球形接头（2）中的一个连接件，所述转动板相对于球形接头及上座板的中垂线转轴旋转连接，并与投影仪（7）固定连接。上座板与固定连接定位板之间设有可相对旋转的限位卡件（5）。固定连接板上设置有用于控制可调节底座板沿其X轴摆动并旋转的第一组牵引端同步收放调节装置（901）、用于控制可调节底座板沿其Y轴摆动并旋转的第二组牵引端同步收放调节装置（902）、用于控制可调节底座板沿其Z轴摆动并旋转的第三组牵引端同步收放调节装置（903）。牵引端同步收放调节装置通过旋转旋钮带动螺杆旋转，从而实现通过牵引绳（17）实现收放的效果。

Description

投影仪调节座架 技术领域：
本发明涉及一种投影仪调节座架。 背景技术- 人们为了使用、操作投影或摄影等设备的方便，通常会采用悬吊 调节装置进行悬挂、调节， 虽然该装置有利于节省放置该些设备的空 间， 但目前的该些悬吊调节装置结构较复杂、 不紧凑， 在调节时各个 方位的调节会产生相互干扰， 造成需要多次反复调节， 调节效率低。 发明内容：
本发明的目的在于提供一种投影仪调节座架，该投影仪调节座架 不仅结构简单、 设计合理， 而且调节简便、 效率高。
本发明投影仪调节座架， 其特征在于： 包括一固定连接定位座板
( 1 )， 所述固定连接定位座板（1 )经球形接头 （2 )与一可调节底座 板（3)连接， 所述可调节底座板（3)包括具有球型接头之一连接件 的上座板（4)和相对球型接头（2 )及上座板的中垂线转轴旋转连接 的并用于与仪器（7) 固定连接的转动板（8)， 所述上座板（4) 与固 定连接定位座板 （1 ) 之间设有相对旋转限位的卡件， 其特征在于： 所述固定连接定位座板 （1 ) 上设置有用于控制可调节底座板 （3 )沿 其 X轴摆转的第一组牵引端同步收放调节装置（901 )， 用于控制可调 节底座板（3)沿其 Y轴摆转的第二组牵引端同步收放调节装置 (902)， 和用于控制转动板沿其 Ζ轴旋转的第三组牵引端同步收放调节装置 (903)。
上述第一、 二、 三组牵引端同步收放调节装置（901、 902、 903) 均包括一壳管（ 10 )和穿设于壳管内的端部带有旋钮（ 12)的转轴（11)， 所述转轴沿轴向分布有相互隔开的一段左旋螺紋（13)和一段右旋螺 紋（14)， 所述左旋螺紋和右旋螺紋上分别螺接有螺套（15)， 所述左 旋螺紋上的螺套和右旋螺紋上的螺套分别与两根伸入壳管内的牵引 绳的端头部相连接，所述转轴与壳管之间通过轴向限位组件实现轴向 限位，所述左旋螺紋上的螺套与右旋螺紋上的螺套其中之一与壳管上 部内表面接触滑行， 另一个与壳管下部内表面接触滑行， 所述牵引绳 (17)穿设于绳套（16)内，所述绳套的端头***壳管端面的孔槽内。
上述第一组牵引端同步收放调节装置的两牵引绳的外端头 （6) 分别与上座板 （4) Υ坐标轴的正坐标位置和负坐标位置连接， 以用 于控制可调节底座板 （3) 沿其 X轴摆转； 第二组牵引端同步收放调 节装置的两牵引绳的外端头分别与上座板 （4) X坐标轴的正坐标位 置和负坐标位置连接， 以用于控制可调节底座板（3)沿其 Υ轴摆转； 第三组牵引端同步收放调节装置的两牵引绳的外端头分别与转动板 (8) 连接， 以用于控制转动板 （8) 沿其 Ζ轴旋转。
上述球型接头 （2) 包括设置在固定连接定位座板底侧的向下凸 起球面（18)和连接在上座板上与向下凸起球面配合的球型凹面（19)。
上述上座板上的球型接头之一连接件包括球冠转动件（20)和一 端与球冠转动件相连接， 另一端穿过上座板 （4) 并与转动板 （8 )连 接的转轴销 （21 ); 球型接头另一连接件为套在球冠转动件外表面及 转轴销***且连接在固定连接定位座板底侧上的向下凸起球面壳体 ( 22 )。
本发明的工作原理：固定连接定位座板经球形接头与一可调节底 座板连接，可调节底座板包括具有球型接头之一连接件的上座板和相 对球型接头及上座板的中垂线转轴旋转连接的并用于与仪器固定连 接的转动板，上座板与固定连接定位座板之间设有相对旋转限位的卡 件； 所以在本发明工作时， 分别通过三组牵引端同步收放调节装置的 调节， 可分别实现调节转动板及与其连接的设备沿其 X、 Y的摆转， 以及沿其 Z轴的旋转， 调节***独立， 互不干扰； 本发明每个坐标轴 的调节都有相应的独立牵引端同步收放调节装置，该调节装置通过旋 转旋钮带动螺杆旋转可实现两牵引绳一收一放两个动作， 收、放动作 顺畅、 施力均衡， 所以本发明具有结构简单、 紧凑， 调节方式简便、 快捷， 以及调节精度高等显著优点。 下面结合附图对本发明进行具体说明。
附图说明：
图 1是本发明实施例的立体构造示意图;
图 2是本发明实施例的的***图；
图 3是本发明的俯视图；
图 4是图 3的 A-A剖面图； 图 5是本发明牵引端同步收放调节装置的立体图构造示意图。 具体实施方式：
本发明投影仪调节座架， 包括一固定连接定位座板 1， 所述固定 连接定位座板 1经球形接头 2与一可调节底座板 3连接，所述可调节 底座板 3包括具有球型接头之一连接件的上座板 4和相对球型接头 2 及上座板的中垂线转轴旋转连接的并用于与仪器 7固定连接的转动 板 8， 所述上座板 4与固定连接定位座板 1之间设有相对旋转限位的 卡件，所述固定连接定位座板 1上设置有用于控制可调节底座板 3沿 其 X轴摆转的第一组牵引端同步收放调节装置 901， 用于控制可调节 底座板 3沿其 Y轴摆转的第二组牵引端同步收放调节装置 902， 和用 于控制转动板沿其 Z轴旋转的第三组牵引端同步收放调节装置 903。
为了调节方便， 上述第一、 二、 三组牵引端同步收放调节装置 901、 902、 903均包括一壳管 10和穿设于壳管内的端部带有旋钮 12 的转轴 11， 所述转轴沿轴向分布有相互隔开的一段左旋螺紋 13和一 段右旋螺紋 14， 所述左旋螺紋和右旋螺紋上分别螺接有螺套 15， 所 述左旋螺紋上的螺套和右旋螺紋上的螺套分别与两根伸入壳管内的 牵引绳的端头部相连接，所述转轴与壳管之间通过轴向限位组件实现 轴向限位，所述左旋螺紋上的螺套与右旋螺紋上的螺套其中之一与壳 管上部内表面接触滑行， 另一个与壳管下部内表面接触滑行， 所述牵 引绳 17穿设于绳套 16内， 所述绳套的端头***壳管端面的孔槽内。
上述第一组牵引端同步收放调节装置的两牵引绳的外端头 6分 别与上座板 Y坐标轴的正坐标位置和负坐标位置连接，以用于控制可 调节底座板 3沿其 X轴摆转；第二组牵引端同步收放调节装置的两牵 引绳的外端头分别与上座板 X坐标轴的正坐标位置和负坐标位置连 接， 以用于控制可调节底座板 3沿其 Υ轴摆转； 第三组牵引端同步收 放调节装置的两牵引绳的外端头分别与转动板 8连接，以用于控制转 动板 8沿其 Ζ轴旋转。
如图 2、 4所示， 当需要实现可调节底座板 3沿 X轴摆转： 旋转 第一牵引端同步收放调节装置 901的旋钮 12， 旋钮带动螺杆旋转， 螺杆上的两段螺紋使与其配合的两螺套分别往相对方向旋动，与相应 螺套连接的两牵引绳即被放松或被收紧，由于两牵引绳外端头 6分别 与上座板 Υ坐标轴的正坐标位置和负坐标位置连接，在两牵引绳被放 松或被收紧时即实现了可调节底座板 3沿 X轴的摆转；
当需要实现可调节底座板 3沿 Υ轴摆转，旋转第二牵引端同步收 放调节装置 902的旋钮， 旋钮带动螺杆旋转， 螺杆上的两段螺紋使与 其配合的两螺套分别往相对方向旋动，与相应螺套连接的牵引绳即被 放松或被收紧，由于两牵引绳外端头 6分别与上座板 X坐标轴的正坐 标位置和负坐标位置连接，在两牵引绳被放松或被收紧时即实现了可 调节底座板 3沿 Υ轴的摆转；
当需要实现转动板 8沿 Ζ轴旋转，旋转第三牵引端同步收放调节 装置 903的旋钮， 旋钮带动螺杆旋转， 螺杆上的两段螺紋使与其配合 的两螺套分别往相对方向旋动，与相应螺套连接的牵引绳即被放松或 被收紧， 由于两牵引绳的外端头分别与转动板 8连接， 即实现了转动 板 8沿 Z轴旋转， 这样通过旋钮的旋转动作， 可同步控制一个牵引绳 放松， 一个牵引绳收紧， 收、放动作顺畅、施力均衡， 操作十分便捷。
上述球型接头 2包括设置在固定连接定位座板底侧的向下凸起 球面 18和连接在上座板上与向下凸起球面配合的球型凹面 19。
上述上座板上的球型接头之一连接件包括球冠转动件 20和一端 与球冠转动件相连接，另一端穿过上座板 4并与转动板 8连接的转轴 销 21 ; 球型接头另一连接件为套在球冠转动件外表面及转轴销*** 且连接在固定连接定位座板底侧上的向下凸起球面壳体 22。
如图 1、 2、 4所示， 当动作第一组牵引端同步收放调节装置 901 时， 即调整了上座板 4绕 X轴摆转，即实现了悬挂设备 （投影仪或摄 影设备)绕 X轴转动；当动作第二组牵引端同步收放调节装置 902时， 即调整了上座板 4绕 Y轴摆转，即实现了悬挂设备 （投影仪或摄影设 备）绕 Y轴转动； 当第三组牵引端同步收放调节装置 903时， 即调整 了转动板绕 Z轴转动， 实现了悬挂设备（投影仪或摄影设备）绕 Z轴 转动；所以本发明分别通过上述三组牵引端同步收放调节装置实现调 节转动板及与其连接的设备沿其 X、 Y的摆转， 以及沿其 Z轴的旋转， 调节***独立， 互不干扰； 另外本发明牵引端同步收放调节装置通过 旋转旋钮带动螺杆旋转可实现两牵引绳一收一放两个动作， 收、放动 作顺畅、施力均衡，所以本发明具有结构简单、紧凑，调节方式简便、 快捷， 以及调节精度高等显著优点。
以上所述仅为本发明的实施例，凡依本发明申请专利范围所做的 均等变化或修饰， 皆应属本发明的涵盖范围。

Claims

权利要求书
1、 一种投影仪调节座架， 其特征在于： 包括一固定连接定位座 板（1)， 所述固定连接定位座板（1)经球形接头 （2) 与一可调节底 座板（3)连接， 所述可调节底座板（3)包括具有球型接头之一连接 件的上座板（4)和相对球型接头（2)及上座板的中垂线转轴旋转连 接的并用于与仪器 （7) 固定连接的转动板 （8)， 所述上座板 （4)与 固定连接定位座板 （1) 之间设有相对旋转限位的卡件 （5)， 其特征 在于： 所述固定连接定位座板 （1) 上设置有用于控制可调节底座板
(3) 沿其 X轴摆转的第一组牵引端同步收放调节装置 （901)， 用于 控制可调节底座板 （3) 沿其 Y轴摆转的第二组牵引端同步收放调节 装置（902)， 和用于控制转动板沿其 Z轴旋转的第三组牵引端同步收 放调节装置 (903)。
2、 根据权利要求 1所述的投影仪调节座架， 其特征在于： 所述 第一、 二、 三组牵引端同步收放调节装置（901、 902、 903)均包括一 壳管 （10) 和穿设于壳管内的端部带有旋钮 （12) 的转轴 （11)， 所 述转轴沿轴向分布有相互隔开的一段左旋螺紋（13)和一段右旋螺紋
(14)， 所述左旋螺紋和右旋螺紋上分别螺接有螺套（15)， 所述左旋 螺紋上的螺套和右旋螺紋上的螺套分别与两根伸入壳管内的牵引绳
(17)的端头部相连接， 所述转轴与壳管之间通过轴向限位组件实现 轴向限位，所述左旋螺紋上的螺套与右旋螺紋上的螺套其中之一与壳 管上部内表面接触滑行， 另一个与壳管下部内表面接触滑行， 所述牵 引绳 （17) 穿设于绳套（16) 内， 所述绳套的端头***壳管端面的孔 槽内。
3、 根据权利要求 1或 2所述的投影仪调节座架， 其特征在于： 所述第一组牵引端同步收放调节装置（901)的两牵引绳的外端头（6) 分别与上座板 （4) Y坐标轴的正坐标位置和负坐标位置连接， 以用 于控制可调节底座板 （3) 沿其 X轴摆转； 第二组牵引端同步收放调 节装置 （902) 的两牵引绳的外端头分别与上座板 （4) X坐标轴的正 坐标位置和负坐标位置连接， 以用于控制可调节底座板 （3) 沿其 Y 轴摆转；第三组牵引端同步收放调节装置的两牵引绳的外端头分别与 转动板 （8) 连接， 以用于控制转动板 （8) 沿其 Z轴旋转。
4、 根据权利要求 3所述的投影仪调节座架， 其特征在于： 所述 球型接头（2)包括设置在固定连接定位座板底侧的向下凸起球面（18) 和连接在上座板上与向下凸起球面配合的球型凹面 （19)。
5、 根据权利要求 4所述的投影仪调节座架， 其特征在于： 所述 上座板上的球型接头之一连接件包括球冠转动件（20)和一端与球冠 转动件相连接， 另一端穿过上座板（4)并与转动板（8)连接的转轴 销 （21); 球型接头另一连接件为套在球冠转动件外表面及转轴销外 围且连接在固定连接定位座板底侧上的向下凸起球面壳体 （22)。
PCT/CN2012/080330 2012-08-16 2012-08-20 投影仪调节座架 WO2014026391A1 (zh)

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