WO2016082064A1 - 一种弧度可调的环幕投影屏 - Google Patents

一种弧度可调的环幕投影屏 Download PDF

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Publication number
WO2016082064A1
WO2016082064A1 PCT/CN2014/091993 CN2014091993W WO2016082064A1 WO 2016082064 A1 WO2016082064 A1 WO 2016082064A1 CN 2014091993 W CN2014091993 W CN 2014091993W WO 2016082064 A1 WO2016082064 A1 WO 2016082064A1
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projection screen
cantilever
round steel
gear
elastic
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PCT/CN2014/091993
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English (en)
French (fr)
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潘有程
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潘有程
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Priority to PCT/CN2014/091993 priority Critical patent/WO2016082064A1/zh
Publication of WO2016082064A1 publication Critical patent/WO2016082064A1/zh

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    • 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
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

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  • the invention relates to a movie screen, in particular to a circular screen projection screen with adjustable curvature.
  • the present invention is directed to the problems existing in the prior art, and provides a circular screen projection screen with adjustable curvature to meet various movie screening requirements and to simplify preparations before the movie screening.
  • the object of the present invention is to realize a ring-shaped projection screen with adjustable curvature, comprising an arc-adjustable soft projection screen disposed between the vertical column and the vertical column, and the upper end and the lower end of each of the columns are respectively provided
  • a horizontal cantilever ⁇ and a pull-up bar and a pull-down bar are respectively fixed between the left and right two columns of the same height as the upper and lower cantilever arms, and each of the cantilever beams is provided with upper and lower parallel corresponding sliding grooves, between the sliding grooves
  • the cantilever beam is provided with a horizontally slidable gear and a rack that meshes with the gear and is fixed to the cantilever beam.
  • the two ends of the gear shaft of the gear are respectively slidably connected with the upper sliding groove and extend out of the cantilever arm.
  • the shaft end of the side of the pinion is connected with a driving motor, and the shaft end of the pinion of the lower side of the cantilever is rotatably connected to the roller, and the outer circumference of the roller is provided with an arc groove, between the roller grooves of the upper end and the lower end wall beam Elastically opposed to the elastic round steel with adjustable curvature, the center points of each of the elastic round steels are respectively fixed with the center of the upper pull rod or the lower pull rod, and the upper and lower elastic round steels are respectively pulled with the upper and lower sides of the soft projection screen. Tight connection Along a longitudinal gear rack engaging movement of the drive roller driven by a motor driven synchronous movement of back and forth movement and ends of the elastic bar, to vary the curvature of the elastic flexible bar so as to change the curvature of the projection screen.
  • the beneficial effect of the arc-adjustable ring screen projection screen of the invention is that the upper and lower edges of the soft projection screen are respectively connected with the corresponding elastic round steel, and the four gears of the upper, lower, left and right are respectively located at the root of the cantilever In the position of the chute, the elastic round steel is substantially in a straight state, and the two ends respectively abut against the arcuate grooves of the corresponding position of the roller; and because the center point of the elastic round steel is fixedly connected with the center of the tie rod, when four
  • the gears are synchronously meshed forward by the driving motor under the driving of the driving motor, the rollers on the respective gear shafts respectively push the two ends of the upper and lower elastic round steels to move forward, so that the elastic round steel gradually deforms in an arc shape.
  • the motor stops moving and locks the gear in the corresponding position.
  • the soft projection screen also changes with the elastic round steel to form a corresponding arc, thereby adjusting the arc
  • the soft projection screen is kept in a tension state, and the upper and lower edges of the soft projection screen are respectively distributed.
  • a hook hole the sliding sleeve of the elastic round steel is provided with a plurality of hooks, and the hook holes on the soft projection screen are respectively connected with the corresponding hook and loop, and the hook holes and the elastic ends of each of the soft projection screens are respectively
  • the two ends of the round steel are respectively connected by elastic tensioning members to ensure that the two ends of the hook ring are always pulled outward to the soft projection screen when the arc of the elastic round steel changes.
  • the bottom plates of the two columns are horizontally provided with a bottom plate for fixing the columns, and the bottom plate is evenly spaced two or more rows of mounting holes, the column
  • the bottom plate is provided with a connecting plate, and the connecting plate is also provided with a mounting hole.
  • the mounting pitch of the column is adjustable on the bottom plate by connecting mounting holes at different positions, and the connecting rod is a telescopic rod with adjustable length.
  • FIG. 1 is a top plan view showing the structure of a circular-curtain annular screen projection screen of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • the arc-shaped projection screen of the invention has an arc-adjustable soft projection screen 5 disposed between the vertical column 3 and the column 3, and the upper end of each column 3 is provided.
  • a horizontal cantilever ⁇ 6 is respectively provided at the lower end, and in this embodiment, the cantilever ⁇ is an open-inward channel steel, and the upper and lower two-column 3 are respectively fixed between the left and right two columns 3 of the same height as the upper and lower cantilever ⁇ 6, and each of the upper and lower two rods 3 is fixedly disposed.
  • the cantilever beam 6 is provided with upper and lower parallel corresponding sliding grooves.
  • the cantilever beam 6 between the sliding grooves is provided with a horizontally sliding gear 11 and a rack 7 meshing with the gear 11 and fixed to the cantilever beam 6, the teeth of the gear 11
  • the two ends of the shaft are respectively slidably connected with the upper sliding groove and extend out of the cantilever ⁇ 6.
  • the shaft end of the upper side of the cantilever ⁇ 6 is connected with a driving motor 10, and the shaft end of the lower side of the cantilever ⁇ 6 is rotatably connected to the roller 12, and the roller 12 is provided with an arc-shaped groove on the outer circumference, and the roller grooves on the upper and lower end wall beams 6 are respectively elastically abutted against the elastic round steel 4 with adjustable curvature, and the center points of each elastic round steel 4 are respectively
  • the center of the upper and lower rods 3 is fixed, and the upper and lower elastic round steels 4 are respectively connected with the upper side of the soft projection screen 5 While tightening the connection, the gear 11 is driven by the motor to move along the rack 7 to drive the roller 12 to move back and forth and push the two ends of the elastic round steel 4 to move back and forth to change the bending curvature of the elastic round steel 4 to change the soft projection screen 5.
  • the soft projection screen 5 is kept in a tension state, and the upper and lower edges of the soft projection screen 5 are respectively provided with a plurality of hook holes, and the sliding sleeve of the elastic round steel 4 is provided with a plurality of hook rings 9 and hooks on the soft projection screen 5.
  • the holes are respectively connected to the corresponding shackles 9 , and the hook holes 9 and the ends of the elastic round steel 4 of each of the flexible projection screens are respectively connected by the elastic tensioning members 8 to ensure the elastic circular steel 4 arcs.
  • the hook loops at both ends always tighten the soft projection screen 5 to the outside.
  • the two columns 1 are horizontally arranged for fixing the column 1
  • the bottom plate 2 and the bottom plate 2 are evenly arranged with two rows or more rows of mounting holes, and the bottom of the column 1 is provided with a connecting plate, and the connecting plate is also provided with a mounting hole, and the mounting pitch of the column 1 is connected to different positions on the bottom plate 2
  • the mounting holes are adjustable
  • the connecting rod 3 is a telescopic rod with an adjustable length.
  • the arc-adjustable annular screen projection screen of the present invention is respectively connected to the corresponding elastic round steel 4 by the upper edge and the lower edge of the soft projection screen 5, and the four gears 11 on the upper and lower left and right cantilever beams 6 are respectively located on the cantilever
  • the elastic round steel 4 is substantially in a straight state, and the two ends respectively abut against the arcuate grooves of the roller 12 at the corresponding position; and because of the center point of the elastic round bar 4 and the tie rod 3 The center is fixedly connected.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

一种弧度可调的环幕投影屏，包括左右两立柱（1）和软投影屏（5）。立柱（1）上端和下端分别设有水平的悬臂梁（6），与上下的悬臂梁（6）同高的左右两立柱（1）之间分别固定设有上拉杆（3）和下拉杆（3）。每个悬臂梁（6）上设有上下平行的滑槽，悬臂梁（6）内设有齿条（7）和与齿条（7）啮合的齿轮（11），齿轮（11）轴两端伸出悬臂梁（6）外。悬臂梁（6）上侧的齿轮（11）轴连接有驱动电机（10），悬臂梁（6）下侧的齿轴（11）轴端转动连接滚轮（12）。滚轮（12）外周设有弧形凹槽，两上端和下端悬臂梁（6）的滚轮（12）凹槽之间分别弹性抵靠安装有弹性圆钢（4）。弹性圆钢（4）的中心点分别与对应的拉杆（3）固定，上下弹性圆钢（4）分别与软投影屏（5）的上下边连接。齿轮（11）沿齿条（7）啮合运动并带动滚轮（12）前后运动并推动弹性圆钢（4）两端同步前后运动，以改变弹性圆钢（4）的弯曲弧度从而改变软投影屏（5）的弧度。

Description

一种弧度可调的环幕投影屏 技术领域
本发明涉及电影屏幕，特别涉及一种弧度可调的环幕投影屏。
背景技术
随着人们生活水平的提高，电影事业非速发展。观众对电影的放映效果要求越来越高，特别是3D或特效电影等的视野效果与投影屏有很大的关系。有些特效电影需要具有一定弧度的宽屏或超宽屏的环幕投影屏。针对此类电影，电影院放映前都需要人工临时调整投影屏，给电影放映带来了诸多不便。
发明内容
本发明针对现有技术存在的问题，提供一种弧度可调的环幕投影屏，以适应各类电影放映要求，并简化电影放映前的准备工作。
本发明的目的是这样实现的，一种弧度可调的环幕投影屏，包括左右垂直设置的立柱和立柱之间设置的弧度可调的软投影屏，每个所述立柱上端和下端分别设有水平的悬臂粱，与上下的悬臂粱同高的左右两立柱之间分别固定设有上拉杆和下拉杆，每个所述悬臂梁上设有上下平行对应的滑槽，滑槽之间的悬臂梁内设有可水平滑动的齿轮和与齿轮啮合并与悬臂梁固定的齿条，所述齿轮的齿轴两端分别与上下滑槽滑动连接并伸出悬臂粱外，所述悬臂粱上侧的齿轴轴端连接有驱动电机，所述悬臂粱下侧的齿轴轴端转动连接滚轮，所述滚轮外周设有弧形凹槽，两上端和下端悬壁梁的滚轮凹槽之间分别弹性抵靠安装有弧度可调的弹性圆钢，每个所述弹性圆钢的中心点分别与上拉杆或下拉杆的中心固定，上下两弹性圆钢分别与软投影屏的上边和下边拉紧连接，所述齿轮通过电机驱动沿齿条啮合运动带动滚轮前后运动并推动弹性圆钢两端同步前后运动，以改变弹性圆钢的弯曲弧度从而改变软投影屏的弧度。
本发明的弧度可调的环幕投影屏的有益效果是：因软投影屏的上边缘和下边缘分别与相应的弹性圆钢拉紧连接，当上下左右的四个齿轮分别位于悬臂粱根部的滑槽位置时，弹性圆钢基本处于平直状态，并且两端分别抵靠对应位置的滚轮的弧形凹槽内；又因弹性圆钢的中心点与拉杆的中心是固定连接的，当四个齿轮分别在驱动电机的驱动下沿齿条同步向前啮合运动时，各齿轮轴上的滚轮分别同步推动上下两弹性圆钢的两端向前运动，使弹性圆钢逐步呈弧形变形，直至达到设定的弧度电机停止运动，并将齿轮锁定在相应的位置，此时，软投影屏也随弹性圆钢变形成相应的弧度，从而实现环幕投影屏弧度的调整。
为便于弧度调节时，软投影屏保持拉紧状态，所述软投影屏上下边缘分别均布有若 干钩孔，所述弹性圆钢上滑动套设有若干钩环，所述软投影屏上的钩孔分别与对应的钩环拉紧连接，每个所述软投影屏两端的钩孔与弹性圆钢的两端分别通过弹性张紧部件连接，以保证弹性圆钢弧度变化时两端钩环始终向外侧拉紧软投影屏。
为使环幕投影屏适应不同宽度的软投影屏，两个所述立柱之间水平设有用于固定立柱的底板，所述底板上等距离均布两排或两排以上安装孔，所述立柱底部设有连接盘，所述连接盘上也对应设有安装孔，所述立柱安装间距在底板上通过连接不同位置的安装孔可调，所述连杆为长度可调的伸缩杆。本结构，可以通过改变立柱的安装距离，从而通过更换不同宽度的软投影屏，实现环幕投影屏更大的的弧度调整和宽度调整。
附图说明
图1为本发明的弧度可调的环幕投影屏结构示意图的俯视图。
图2为图1的A—A剖面图。
其中，1立柱；2底座；3拉杆；4弹性圆钢；5软投影屏；6悬臂梁；7齿条；8弹性张紧部件；9钩环；10驱动电机；11齿轮；12滚轮。
具体实施方式
如图1和图2所示，本发发明的弧度可调的环幕投影屏，包括左右垂直设置的立柱3和立柱3之间设置的弧度可调的软投影屏5，每个立柱3上端和下端分别设有水平的悬臂粱6，本实施例中悬臂粱为开口向内侧的槽钢，与上下悬臂粱6同高的左右两立柱3之间分别固定设有上下两拉杆3，每个悬臂梁6上设有上下平行对应的滑槽，滑槽之间的悬臂梁6内设有可水平滑动的齿轮11和与齿轮11啮合并与悬臂梁6固定的齿条7，齿轮11的齿轴两端分别与上下滑槽滑动连接并伸出悬臂粱6外，悬臂粱6上侧的齿轴轴端连接有驱动电机10，悬臂粱6下侧的齿轴轴端转动连接滚轮12，滚轮12外周设有弧形凹槽，两上端和下端悬壁梁6上的滚轮凹槽之间分别弹性抵靠安装有弧度可调的弹性圆钢4，每个弹性圆钢4的中心点分别与上下拉杆3的中心固定，上下两弹性圆钢4分别与软投影屏5的上边和下边拉紧连接，齿轮11通过电机驱动可沿齿条7啮合运动带动滚轮12前后运动并推动弹性圆钢4两端同步前后运动，以改变弹性圆钢4的弯曲弧度从而改变软投影屏5的弧度。
为便于弧度调节时，软投影屏5保持拉紧状态，软投影屏5上下边缘分别均布有若干钩孔，弹性圆钢4上滑动套设有若干钩环9，软投影屏5上的钩孔分别与对应的钩环9拉紧连接，与每个软投影屏两端的钩孔连接钩环9与弹性圆钢4的两端分别通过弹性张紧部件8连接，以保证弹性圆钢4弧度变化时两端钩环始终向外侧拉紧软投影屏5。
为使环幕投影屏适应不同宽度的软投影屏，两个立柱1之间水平设有用于固定立柱1 的底板2，底板2上等距离均布两排或两排以上安装孔，立柱1底部设有连接盘，连接盘上也对应设有安装孔，立柱1安装间距在底板2上通过连接不同位置的安装孔可调，连杆3为长度可调的伸缩杆。本结构，可以通过改变立柱1的安装距离，从而通过更换不同宽度的软投影屏5，实现环幕投影屏更大的的弧度调整和宽度调整。
本发明的弧度可调的环幕投影屏，因软投影屏5的上边缘和下边缘分别与相应的弹性圆钢4拉紧连接，当上下左右的悬臂梁6上四个齿轮11分别位于悬臂粱6根部的滑槽位置时，弹性圆钢4基本处于平直状态，并且两端分别抵靠对应位置的滚轮12的弧形凹槽内；又因弹性圆钢4的中心点与拉杆3的中心是固定连接的，当四个齿轮11分别在驱动电机10的驱动下沿齿条7同步向前啮合运动时，各齿轮轴上的滚轮12分别同步推动上下两弹性圆钢4的两端向前运动，使弹性圆钢4逐步呈弧形变形，直至达到设定的弧度电机停止运动，并将齿轮11锁定在相应的位置，此时，软投影屏5也随弹性圆钢4变形成相应的弧度，从而实现环幕投影屏弧度的调整。
本发明并不局限于上述实施例，凡是在本发明公开的技术方案的基础上，本领域的技术人员根据所公开的技术内容，不需要创造性的劳动就可以对其中的一些技术特征作出一些替换和变形，这些替换和变形均在本发明保护的范围内。

Claims (3)

  1. 一种弧度可调的环幕投影屏，包括左右垂直设置的立柱和立柱之间设置的弧度可调的软投影屏，每个所述立柱上端和下端分别设有水平的悬臂粱，与上下的悬臂粱同高的左右两立柱之间分别固定设有上拉杆和下拉杆，其特征在于，每个所述悬臂梁上设有上下平行对应的滑槽，滑槽之间的悬臂梁内设有可水平滑动的齿轮和与齿轮啮合的齿条，所述齿轮的齿轴两端分别与上下滑槽滑动连接并伸出悬臂粱外，所述悬臂粱上侧的齿轴轴端连接有驱动电机，所述悬臂粱下侧的齿轴轴端转动连接滚轮，所述滚轮外周设有弧形凹槽，两上端和下端悬壁梁的滚轮凹槽之间分别弹性抵靠安装有弧度可调的弹性圆钢，每个所述弹性圆钢的中心点分别与上拉杆或下拉杆固定，上下两弹性圆钢分别与软投影屏的上边和下边连接，所述齿轮通过电机驱动沿齿条啮合运动带动滚轮前后运动并推动弹性圆钢两端同步前后运动，以改变弹性圆钢的弯曲弧度从而改变软投影屏的弧度。
  2. 根据权利要求1所述的弧度可调的环幕投影屏，其特征在于，所述软投影屏上下边缘分别均布有若干钩孔，所述弹性圆钢上滑动套设有若干钩环，所述软投影屏上的钩孔分别与对应的钩环拉紧连接，每个所述软投影屏两端的钩孔与弹性圆钢的两端分别通过弹性张紧部件连接。
  3. 根据权利要求1所述的弧度可调的环幕投影屏，其特征在于，两个所述立柱之间水平设有用于固定立柱的底板，所述底板上等距离均布两排或两排以上安装孔，所述立柱底部设有连接盘，所述连接盘上也对应设有安装孔，所述立柱安装间距在底板上通过连接不同位置的安装孔可调，所述连杆为长度可调的伸缩杆。
PCT/CN2014/091993 2014-11-24 2014-11-24 一种弧度可调的环幕投影屏 WO2016082064A1 (zh)

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CN107885026A (zh) * 2017-12-24 2018-04-06 大连函量科技发展有限公司 一种能够调节弧度的智能幕布装置
CN109549769A (zh) * 2018-12-21 2019-04-02 山东省科学院自动化研究所 一种模块化可穿戴肢体连接固定接口装置
CN112185254A (zh) * 2020-09-28 2021-01-05 上海博泰悦臻网络技术服务有限公司 一种车载显示屏及其调节控制方法与装置
CN112435613A (zh) * 2020-12-08 2021-03-02 大连交通大学 一种具有调节机构的互联网新媒体发布展示装置
CN112762085A (zh) * 2020-12-07 2021-05-07 合肥维信诺科技有限公司 转轴组件和显示装置
CN113504269A (zh) * 2021-07-01 2021-10-15 国家电网有限公司 实验用土体电阻率测量装置及其测量方法
CN115268197A (zh) * 2022-07-26 2022-11-01 山东金东数字创意股份有限公司 一种环形双层旋转移动纱幕装置
CN107885026B (zh) * 2017-12-24 2024-05-31 大连函量科技发展有限公司 一种能够调节弧度的智能幕布装置

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CN107885026A (zh) * 2017-12-24 2018-04-06 大连函量科技发展有限公司 一种能够调节弧度的智能幕布装置
CN107885026B (zh) * 2017-12-24 2024-05-31 大连函量科技发展有限公司 一种能够调节弧度的智能幕布装置
CN109549769A (zh) * 2018-12-21 2019-04-02 山东省科学院自动化研究所 一种模块化可穿戴肢体连接固定接口装置
CN109549769B (zh) * 2018-12-21 2023-11-28 山东省科学院自动化研究所 一种模块化可穿戴肢体连接固定接口装置
CN112185254A (zh) * 2020-09-28 2021-01-05 上海博泰悦臻网络技术服务有限公司 一种车载显示屏及其调节控制方法与装置
CN112185254B (zh) * 2020-09-28 2023-09-26 上海博泰悦臻网络技术服务有限公司 一种车载显示屏及其调节控制方法与装置
CN112762085A (zh) * 2020-12-07 2021-05-07 合肥维信诺科技有限公司 转轴组件和显示装置
CN112762085B (zh) * 2020-12-07 2022-07-05 合肥维信诺科技有限公司 转轴组件和显示装置
CN112435613A (zh) * 2020-12-08 2021-03-02 大连交通大学 一种具有调节机构的互联网新媒体发布展示装置
CN113504269A (zh) * 2021-07-01 2021-10-15 国家电网有限公司 实验用土体电阻率测量装置及其测量方法
CN115268197A (zh) * 2022-07-26 2022-11-01 山东金东数字创意股份有限公司 一种环形双层旋转移动纱幕装置
CN115268197B (zh) * 2022-07-26 2024-03-29 山东金东数字创意股份有限公司 一种环形双层旋转移动纱幕装置

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