WO2019085257A1 - 固定装置、投影屏幕以及投影设备 - Google Patents

固定装置、投影屏幕以及投影设备 Download PDF

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Publication number
WO2019085257A1
WO2019085257A1 PCT/CN2018/071430 CN2018071430W WO2019085257A1 WO 2019085257 A1 WO2019085257 A1 WO 2019085257A1 CN 2018071430 W CN2018071430 W CN 2018071430W WO 2019085257 A1 WO2019085257 A1 WO 2019085257A1
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WO
WIPO (PCT)
Prior art keywords
fixing
projection screen
frame
fixed
driving rod
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Application number
PCT/CN2018/071430
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English (en)
French (fr)
Inventor
付锦江
黄旻
李屹
Original Assignee
深圳光峰科技股份有限公司
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Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2019085257A1 publication Critical patent/WO2019085257A1/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
    • G03B21/56—Projection screens

Definitions

  • the present invention relates to the field of mechanical fastening, and more particularly to a fixing device and a projection screen and a projection apparatus using the same.
  • the fixing device is widely used for hanging the object to be fixed on an external fixing surface such as a wall.
  • an external fixing surface such as a wall.
  • the height cannot be adjusted and cannot be Continuously adjust or adjust defects with a small range.
  • the height of the projection screen is basically determined after the mounting hole on the wall is determined, and the accuracy of the screen positioning depends on the accuracy of the punching position, which gives the screen installation and The use brings a big problem; when the screen adjustment range is small or can not be continuously adjusted, the position of the screen and the projected picture is also difficult to accurately match, and the position of the projected image deviates from the position of the screen, which seriously affects the projection effect.
  • the technical problem to be solved by the present invention is to provide a fixing device, a projection screen and a projection device, which solve the problem that the fixing of the object to be fixed in the prior art is difficult, the position of the projected image is deviated from the position of the screen, and the projection effect is affected.
  • a technical solution adopted by the present invention is to provide a fixing device including a fixing bracket for fixing to an external fixing surface, a driving rod disposed on the fixing bracket, and being fixed to the driving rod
  • the fixing bracket includes a main body portion and a fixed end bent from the main body portion to the two sides, the fixed end is used for attaching and fixing with an external fixing surface
  • the main body portion includes oppositely disposed a top wall and a bottom wall
  • the driving rod is disposed through the top wall and the bottom wall and spaced apart from the fixed end
  • the supporting structure extends from the driving rod toward a direction away from an external fixing surface
  • the supporting structure For supporting the object to be fixed, the support structure is moved between the top wall and the bottom wall by the movement of the drive rod.
  • the supporting structure is a special-shaped nut, and includes a sleeve portion that is sleeved on the driving rod, and the supporting plate and the self-supporting plate extending from the sleeve portion away from the external fixing surface are bent toward the top wall. Fold the extended baffle.
  • the method further includes a fixing structure disposed on a side of the top wall away from the bottom wall for restricting axial displacement of the driving rod.
  • the fixing structure comprises a fixing plate abutting on a side surface of the top wall away from the bottom wall and a screw hole extending from the fixing plate, and one end of the driving rod is screwed into the screw hole.
  • the fixed end is provided with a through fixing hole, and the fixing device fixes the surface with the outside by a fastener passing through the fixing hole.
  • the drive rod is a screw.
  • the present invention also provides a technical solution of providing a projection screen including a frame and a screen fixed to the frame, including the fixing device as described above, the frame being the fixed to be fixed
  • the projection screen includes a fixing rod disposed on the frame, and the fixing device cooperates with the fixing rod by the supporting structure to support the frame.
  • the fixing rod is disposed in a horizontal direction and slidably disposed on a support structure of the fixing device.
  • the projection screen further comprises a horizontal locking device connected to the frame for restricting movement of the frame in a horizontal direction.
  • the horizontal locking device comprises a horizontal fixing portion for fixing to an external fixing surface and a top wire matching the horizontal fixing portion, the frame is provided with a threaded hole penetrating therethrough, and the top wire is worn The threaded hole is connected to the horizontal fixing portion to achieve locking and fixing with the frame.
  • the horizontal fixing portion is provided with a waist hole, and the horizontal fixing portion and the external fixing surface are fixedly connected by a fastener passing through the waist hole.
  • the frame comprises oppositely disposed outer frames and inner frames, the fixing bars are disposed at an upper edge of the inner frame, and the fixing means cooperating with the fixing bars are provided in at least two.
  • the horizontal locking device comprises at least two, respectively disposed on two sides of the projection screen in the horizontal direction, and is locked and fixed with the outer frame.
  • the present invention provides a technical solution of providing a projection apparatus including a projection screen and the projection screen according to any of the above.
  • the present invention provides a fixing device including a fixing bracket for fixing to an external fixing surface, a driving rod disposed on the fixing bracket, and being fixed in the same manner as in the prior art.
  • a supporting structure on the driving rod the supporting structure is used for supporting and fixing the object to be fixed, and the height position of the supporting structure is continuously adjustable by the rotation of the driving rod. It is not only convenient to fix, but also convenient to realize position adjustment in the height direction. When applied to the projection screen, the adjustment of the position of the projection screen can be effectively realized, thereby realizing effective adjustment of the projection effect.
  • Figure 1 is a schematic view showing the structure of a fixing device of the present invention
  • FIG. 2 is a schematic structural view of a projection screen of the present invention
  • Figure 3 is an enlarged view of a portion A shown in Figure 2;
  • Figure 4 is a cross-sectional view of the portion shown in Figure 3;
  • Figure 5 is a schematic view showing the combined structure of the portion shown in Figure 4 and the external fixed surface;
  • Figure 6 is an enlarged view of a portion B shown in Figure 2;
  • Figure 7 is an assembled view of the horizontal locking device of the projection screen of the present invention.
  • the present invention provides a fixing device and a projection screen and device using the same to solve the installation difficulty and the position deviation caused by the projection screen and the whiteboard waiting for the fixing object to be hung on the external fixing surface of the wall or the like in the prior art.
  • the fixing device 100 provided by the present invention comprises a fixing bracket 1 , a driving rod 2 , a supporting structure 3 and a fixing structure 4 .
  • the fixing bracket 1 includes a main body portion 11 and a fixed end 12 bent from the main body portion 11 to both sides.
  • the fixed end 12 is used for attaching to the external fixing surface 5 for fixing.
  • the external fixing surface 5 can be a wall or other fixed surface structure that can be used for mounting and fixing.
  • the fixing end 12 is provided with a through fixing hole 121, and the fixing device 100 is fixed to the external fixing surface 5 by a fastener passing through the fixing hole 121.
  • the fastener may be a fastening screw, that is, when the fixing device 100 is used, the fixing end 12 is abutted on the external fixing surface 5, and the fastening screw is driven into the wall through the fixing hole 121 or other external fixing. The surface thus achieves the fixation of the fixture 100.
  • the main body portion 11 includes a top wall 111, a bottom wall 112, and a connecting wall 113 connecting the top wall 111 and the bottom wall 112.
  • a receiving space is defined between the top wall 111, the bottom wall 112, the connecting wall 113 and the two fixed ends 12.
  • the driving rod 2 extends through the top wall 111 and the bottom wall 112 and is received in the receiving space, that is, spaced apart from the connecting wall 113 and the fixed end 12 .
  • the driving rod 2 is a screw threaded on both sides or a threaded bolt on one side.
  • the driving rod 2 is a bolt, and the top wall 111 and the bottom wall 112 are correspondingly provided with screw holes for the matching screw. Thereby the connection of the drive rod 2 is achieved.
  • the connecting wall 113 is provided with a hollow portion 1131 corresponding to the driving rod 2.
  • the hollow portion 1131 is a through hole disposed on the connecting wall 113, and the supporting structure 3 extends from the driving rod 2 in a direction away from the external fixing surface 5 and passes through Hollow portion 1131.
  • the support structure 3 is in contact with the object to be fixed on the side away from the accommodating space and supports the object to be fixed.
  • the connecting wall 113 may not be provided.
  • the top wall 111 and the bottom wall 112 are respectively connected with the fixed end 12 to form a ring-shaped ring on both sides.
  • the frame structure that is, the hollow portion 1131 is enlarged to the side of the fixed end 12, and the support structure 3 directly extends outside the receiving space, and can also be implemented.
  • the support structure 3 of the present invention is used for supporting and fixing the object to be fixed, and the height position of the support structure 3 is continuously adjustable by the rotation of the drive rod 2.
  • the support structure 3 is a special-shaped nut, that is, a sleeve portion 31 that is sleeved on the driving rod 2, and the support plate 32 extending from the sleeve portion 31 away from the external fixing surface 5 and The support plate 32 bends the extending baffle 33 toward the top wall 111.
  • the sleeve portion 31 and the driving rod 2 may be integrally connected to each other, or may be a split type structure.
  • the inner surface of the sleeve portion 31 is provided with a thread, and the driving rod 2 is disposed on the same. The matching thread, the sleeve portion 31 and the drive rod 2 are screwed together.
  • the fixing structure 4 is disposed on a side of the top wall 111 away from the bottom wall 112 for restricting axial displacement of the drive rod.
  • the fixing structure 4 includes a fixing plate 41 abutting on an outer surface of the side of the top wall 111 away from the bottom wall 112 and a fixing hole 42 extending from the fixing plate 41.
  • the fixing structure 4 is connected to the top wall 111 by screws on the fixing plate 41. .
  • One end of the drive rod 2 is screwed into the fixing hole 42.
  • the bolt as the driving rod 2 includes a head and a screw, and the driving rod passes through the fixing hole 42 , and the head is abutted by the two side walls of the fixing hole 42 , thereby limiting the axial direction of the driving rod. mobile.
  • the drive rod 2 is rotated during operation, and the thread on the sleeve portion 31 is caused to move relative to the axis of the drive rod 2 by the threads on the drive rod 2 engaged therewith.
  • novel fixing device provided by the present embodiment is not limited to a specific application field, that is, it can be applied to industrial production, and can also be used for daily necessities, as long as it is fixed and adjusted in the height direction. It is desirable to use the fixture of the present invention.
  • An application of the fixing device of the present invention that is, an application to an optical device, specifically, a projection screen and a projection device will be specifically described below.
  • a projection screen provided in a projection apparatus provided by the present invention includes a frame 300 and a screen fixed to the frame 300, and the above-described fixing device 100.
  • the frame 300 is a rectangular frame including an upper edge, a lower edge, and side edges.
  • the fixing device 100 is fixed on the upper edge to achieve fixation and adjustment of the projection screen in the height direction.
  • the projection screen further includes a horizontal locking device 200 for restricting movement of the projection screen in a horizontal direction.
  • a horizontal locking device 200 is provided on the side edges for achieving a fixation in the horizontal direction.
  • the frame 300 may also have other shapes, such as a square structure, a polygonal structure, or an irregular structure. The principle is the same as long as it can be implemented. It is possible to perform the function of limiting the displacement in both directions.
  • the frame 300 includes an outer frame 301 and an inner frame 302 that are disposed opposite each other.
  • a fixing rod 3021 extending in the horizontal direction is disposed on the inner frame 302, and the fixing device 100 supports the projection screen through the fixing rod 3021. Drive the projection screen to adjust the position in the height direction.
  • the fixing rod 3021 is a slide bar slidably provided on the support structure 3 of the fixing device 100. That is, a card slot is formed between the support plate 32 of the support structure 3 and the baffle plate 33, and the fixing rod 3021 is locked in the card slot and can slide in the horizontal direction.
  • the fixing device 100 is fixed to the external fixing surface 5 by fasteners, and the projection screen is inserted into the card slot through the fixing rod 3021, and the balance position of the projection screen is found by moving left and right.
  • the fixing rod 3021 does not necessarily have a rod-like structure.
  • the fixing rod 3021 has a semicircular structure extending from the inner frame 302.
  • the fixing rod 3021 can also be of other constructions, as long as it can be fixed to the fixing device 100 and can be slid in the horizontal direction.
  • the fixing rod 3021 and the inner frame 302 are of a unitary structure.
  • the fixing rod 3021 may be a split structure, that is, a detachable rod-like structure fixed to the inner frame 302.
  • the horizontal locking device 200 may not be provided.
  • the fixing rod 3021 is fixed to the fixing device 100 without horizontal sliding, and the object of the present invention can also be achieved.
  • the fixing devices 100 there are two fixing devices 100 which are respectively disposed at the upper edges of the inner frame 301. And the two fixing devices 100 are symmetrically arranged along the center of gravity of the projection screen.
  • the number of the fixing devices 100 is not limited thereto, and a plurality of distributions may be provided at the upper edge of the entire inner frame 302.
  • At least two horizontal locking devices 200 are respectively disposed on both sides of the projection screen in the horizontal direction, and are locked and fixed to the outer frame 301.
  • the horizontal locking device 200 includes a horizontal fixing portion 9 for fixing to the external fixing surface 5 and a top wire 7 that is in contact with the horizontal fixing portion 9, and the frame 300 is provided with a threaded hole therethrough.
  • the screw hole 8 is provided on the outer frame 301.
  • the top wire 7 is connected to the horizontal fixing portion 9 through the threaded hole 8, thereby achieving locking and fixing of the projection screen.
  • the horizontal fixing portion 9 and the external fixing surface 5 are also fixedly connected by a fastener.
  • the horizontal fixing portion 9 is provided with a waist hole through which the fastener passes to fix the horizontal fixing portion 9 and the external fixing surface 5.
  • the fixing device 100 When the projection screen is installed, the fixing device 100 is fixed, the projection screen is fixed on the fixing device 100, the center of gravity is found, and the support structure 3 and the fixing rod 3021 are driven by the rotation of the driving rod 2 of the fixing device 100, thereby realizing the projection screen.
  • the height position is continuously adjustable. Further, the positioning of the projection screen in the horizontal direction is achieved by the horizontal locking device 200. Thereby completing the position adjustment of the projection screen.
  • the present invention provides a fixing device including a fixing bracket for fixing to an external fixing surface, a driving rod disposed on the fixing bracket, and being fixed in the same manner as in the prior art.
  • a supporting structure on the driving rod the supporting structure is used for supporting and fixing the object to be fixed, and the height position of the supporting structure is continuously adjustable by the rotation of the driving rod. It is not only convenient to fix, but also convenient to realize position adjustment in the height direction. When applied to the projection screen, the adjustment of the position of the projection screen can be effectively realized, thereby realizing effective adjustment of the projection effect.

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

Abstract

一种固定装置及应用该固定装置的投影屏幕及投影设备，固定装置（100）包括用于与外界固定面（5）固定的固定支架（1），设置在所述固定支架上的驱动杆（2）以及固定在所述驱动杆上的支撑结构（3），所述支撑结构用于支撑待固定物，通过所述驱动杆的旋转实现所述支撑结构的高度位置连续可调。不仅方便固定，而且方便实现沿高度方向上的位置调节，当应用于投影屏幕时，可以有效实现对于投影屏幕位置的调节，从而实现对投影效果的有效调节。

Description

固定装置、投影屏幕以及投影设备 技术领域
本发明涉及机械固定领域，尤其涉及一种固定装置以及应用该固定装置的投影屏幕以及投影设备。
 
 背景技术
固定装置被广泛用于将待固定物的悬挂在例如为墙体的外界固定面上，举例来说，目前作为待固定物的投影屏幕、白板被固定装置固定时，存在高度上不能调整、不能连续调整或调整范围较小的缺陷。
 技术问题
对于投影屏幕来说，当屏幕高度不能调整时，墙上的安装孔确定后，投影屏幕的高度也就基本确定，屏幕定位的准确性依赖于打孔位置的准确性，这给屏幕的安装和使用带来很大的问题；当屏幕调整范围小或不能连续调整时，屏幕与投影画面的位置也很难精确匹配，投影图像位置与屏幕位置产生偏差，严重影响投影效果。
因此，实有必要提供一种新的固定装置、投影屏幕以及投影设备以解决上述问题。
 技术解决方案
本发明主要解决的技术问题是提供一种固定装置及投影屏幕和投影设备，以解决现有技术中的待固定物安装困难，投影图像位置与屏幕位置产生偏差，影响投影效果的问题。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种固定装置，包括用于与外界固定面固定的固定支架，设置在所述固定支架上的驱动杆以及固定在所述驱动杆上的支撑结构，所述固定支架包括主体部以及自所述主体部向两侧弯折延伸的固定端，所述固定端用于与外界固定面相贴合并固定，所述主体部包括相对设置的顶壁和底壁，所述驱动杆贯穿所述顶壁与所述底壁并与所述固定端间隔设置，所述支撑结构自所述驱动杆向远离外界固定面方向延伸，所述支撑结构用于支撑待固定物，通过所述驱动杆的移动驱动支撑结构在顶壁和底壁之间移动。
优选的，所述支撑结构为异形螺母，包括套设在所述驱动杆上的套设部，自所述套设部向远离外界固定面方向延伸的支撑板和自支撑板向顶壁方向弯折延伸的挡板。
优选的，还包括设置在所述顶壁远离所述底壁的一侧，用于限制所述驱动杆沿轴向位移的固定结构。
优选的，所述固定结构包括抵接在所述顶壁远离底壁的一侧表面的固定板和自固定板延伸的螺孔，所述驱动杆的一端旋入所述螺孔内。
优选的，所述固定端上设置有贯穿的固定孔，所述固定装置通过穿过所述固定孔的紧固件与外界固定面。
优选的，所述驱动杆为螺杆。
为解决上述技术问题，本发明还提供一个技术方案是：提供一种投影屏幕，其包括框架和固定在所述框架上的屏幕，包括如上所述的固定装置，所述框架为所述待固定物，所述投影屏幕包括设置在所述框架上的固定杆，所述固定装置通过所述支撑结构与固定杆的配合以支撑所述框架。
优选的，所述固定杆沿水平方向设置并可滑动地设置在所述固定装置的支撑结构上。
优选的，所述投影屏幕还包括与所述框架相连的用于限制所述框架沿水平方向移动的水平锁紧装置。
优选的，所述水平锁紧装置包括用于与外界固定面固定的水平固定部以及与所述水平固定部相匹配的顶丝，所述框架上设置有贯穿的螺纹孔，所述顶丝穿过所述螺纹孔与所述水平固定部相连实现与所述框架的锁紧固定。
优选的，所述水平固定部上设置有腰形孔，所述水平固定部与外界固定面通过穿过腰形孔的紧固件固定连接。
优选的，所述框架包括相对设置的外框架和内框架，所述固定杆设置在所述内框架的上边缘，与所述固定杆配合的所述固定装置设置为至少两个。
优选的，所述水平锁紧装置包括至少两个，分别设置在所述投影屏幕沿水平方向的两侧，并与所述外框架锁紧固定。
为解决上述技术问题，本发明还提供一个技术方案是：提供一种投影设备，包括投影屏幕和如上任意一项所述的投影屏幕。
 有益效果
本发明的有益效果是：区别于现有技术的情况，本发明提供一种固定装置，包括用于与外界固定面固定的固定支架，设置在所述固定支架上的驱动杆以及固定在所述驱动杆上的支撑结构，所述支撑结构用于支撑固定待固定物，通过所述驱动杆的旋转实现所述支撑结构的高度位置连续可调。不仅方便固定，而且方便实现沿高度方向上的位置调节，当应用于投影屏幕时，可以有效实现对于投影屏幕位置的调节，从而实现对投影效果的有效调节。
 附图说明
图1是本发明固定装置的结构示意图；
图2是本发明投影屏幕的结构示意图；
图3是图2所示的A部分放大图；
图4是图3所示的部分的剖视图；
图5是图4所示的部分与外界固定面的组合结构示意图；
图6是图2所示的B部分放大图；
图7是本发明投影屏幕水平锁紧装置的组装示意图。
 
 本发明的实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种固定装置及应用该固定装置的投影屏幕和设备，以解决现有技术中投影屏幕、白板等待固定物悬挂在墙体等的外界固定面时产生的安装困难，位置产生偏差，影响使用效果的技术问题。
如图1所示，本发明提供的固定装置100，包括固定支架1、驱动杆2、支撑结构3和固定结构4。
其中固定支架1包括主体部11以及自主体部11向两侧弯折延伸的固定端12。固定端12用于与外界固定面5贴合并进行固定。其中外界固定面5可以为墙体或其他可用于安装固定的固定面结构。
具体的，固定端12上设置有贯穿的固定孔121，固定装置100通过穿过固定孔121的紧固件与外界固定面5固定。具体的，紧固件可以为紧固螺丝，即在使用固定装置100时，将固定端12抵接在外界固定面5上，并将紧固螺丝通过固定孔121打入墙体或其他外界固定面上从而实现固定装置100的固定。
主体部11包括相对间隔设置的顶壁111、底壁112和连接顶壁111和底壁112的连接壁113。顶壁111、底壁112、连接壁113和两固定端12之间围成一收容空间。驱动杆2贯穿顶壁111与底壁112并收容在该收容空间内，即与连接壁113及固定端12间隔设置。驱动杆2为两侧均加工有螺纹的螺杆或一侧加工有螺纹的螺栓，具体在本实施方式中，驱动杆2为螺栓，顶壁111、底壁112上对应设置有配合螺杆的螺纹孔，从而实现驱动杆2的连接。
连接壁113上设置有对应驱动杆2的中空部1131，具体的，中空部1131为设置在连接壁113上的通孔，支撑结构3自驱动杆2向远离外界固定面5方向延伸并穿过中空部1131。支撑结构3在远离收容空间的一侧与待固定物相接触并支撑待固定物。当然，这仅是一种较优的实施方式，在可选择的其他实施方式中，也可以不设置连接壁113，顶壁111和底壁112分别与固定端12相连形成两侧贯通的环状框架结构，即将中空部1131扩大到固定端12一侧，支撑结构3直接延伸至收容空间外，也是可以实施的。本发明的支撑结构3用于支撑固定待固定物，通过驱动杆2的旋转实现支撑结构3的高度位置连续可调。
具体在本实施方式中，支撑结构3为异形螺母，即包括套设在驱动杆2上的套设部31，自所述套设部31向远离外界固定面5方向延伸的支撑板32和自支撑板32向顶壁111方向弯折延伸的挡板33。套设部31与驱动杆2可以为一体的固定连接，也可以为分体式结构，具体在本实施方式中，为套设部31的内表面设置有螺纹，驱动杆2上设置于与之相匹配的螺纹，套设部31与驱动杆2通过螺纹连接在一起。
固定结构4设置在顶壁111远离底壁112的一侧，用于限制所述驱动杆沿轴向的位移。固定结构4包括抵接在顶壁111远离底壁112的一侧的外表面的固定板41和自固定板41延伸的固定孔42，固定结构4通过固定板41上的螺钉与顶壁111相连。驱动杆2的一端旋入固定孔42内。具体在本实施方式中，作为驱动杆2的螺栓包括头部和螺杆，驱动杆穿过固定孔42，头部被固定孔42的两侧壁抵接限位，从而限制了驱动杆的轴向移动。这样，在工作过程中驱动杆2转动，套设部31上的螺纹在与之配合的驱动杆2上的螺纹的带动下，产生相对于驱动杆2轴线上的运动。
需要说明的是，本实施方式提供的新型的固定装置并不限于具体的应用领域，即可以应用于工业生产，也可以用于日常生活用品，只要是有实现固定并进行在高度方向上调整的需求，即是可以使用本发明的固定装置的。
下面将以本发明固定装置的一种应用，即应用于光学设备，具体为应用于投影屏幕和投影设备为例来具体说明。
参照图2所示，为本发明提供的应用于投影设备中的投影屏幕包括框架300和固定在所述框架300上的屏幕、上述的固定装置100。在本实施方式中，框架300为长方形框架，包括上边缘、下边缘和侧边缘。固定装置100固定在上边缘上实现投影屏幕在高度方向上的固定和可调节。
优选的，投影屏幕还包括用于限制投影屏幕沿水平方向移动的水平锁紧装置200。水平锁紧装置200设置在侧边缘上用于实现在水平方向上的固定。当然，这仅是一种较优的实施方式，在可选择的其他实施方式中，框架300也可以为其他形状，例如正方形结构、多边形结构或不规则结构，其原理是一致的，只要能够实现在两个方向上起到限制位移的作用，均是可以实施的。
框架300包括相对设置的外框架301和内框架302。如图3和图4所示，在框架300上，具体在本实施方式中，为在内框架302上设置有沿水平方向延伸的固定杆3021，固定装置100通过固定杆3021支撑投影屏幕，并带动投影屏幕在高度方向上调整位置。具体在本实施方式中，固定杆3021为可滑动地设置在固定装置100的支撑结构3上的滑杆。即支撑架构3的支撑板32和挡板33之间形成卡槽，固定杆3021卡设在该卡槽内，并可以沿水平方向滑动。
参照图5所示，固定装置100通过紧固件固定在外界固定面5上，投影屏幕通过固定杆3021卡入卡槽内，并通过左右移动找到投影屏幕的平衡位置。需要说明的是，固定杆3021并不必然是杆状结构，例如在本实施方式中，为自内框架302延伸而成的半圆形的结构。事实上，固定杆3021也可以为其他结构，只要可以固定在固定装置100上并可实现水平方向上的滑动，即是可以实施的。在本实施方式中，固定杆3021与内框架302为一体结构，在可选择的其他实施方式中，也可以为分体式结构，即为固定在内框架302上的可拆卸的杆状结构。在可选择的其他实施方式中，也可以不设置水平锁紧装置200，对应的，固定杆3021固定在固定装置100上而不进行水平方向的滑动，也是可以达到本发明目的的。
在本实施方式中，固定装置100有两个，分别设置在内框架301的上边缘。且两固定装置100沿投影屏幕的重心对称设置。当然，固定装置100的数量并不限于此，也可以设置多个分布在整个内框架302的上边缘。水平锁紧装置200至少两个，分别设置在投影屏幕沿水平方向的两侧，并与外框架301锁紧固定。
如图6和图7所示，水平锁紧装置200包括用于与外界固定面5固定的水平固定部9以及与水平固定部9相抵触的顶丝7，框架300上设置有贯穿的螺纹孔8，，具体在本实施方式中，螺纹孔8设置在外框架301上。顶丝7穿过螺纹孔8与水平固定部9相连，从而实现投影屏幕的锁紧固定。其中水平固定部9与外界固定面5也通过紧固件固定连接。具体的，水平固定部9上设置有腰形孔，紧固件穿过该腰形孔实现水平固定部9与外界固定面5的固定。
在安装投影屏幕时，先固定好固定装置100，将投影屏幕固定在固定装置100上，找好重心，通过固定装置100的驱动杆2的旋转带动支撑结构3和固定杆3021，从而实现投影屏幕的高度位置连续可调。进一步的，通过水平锁紧装置200实现投影屏幕水平方向上的定位。从而完成投影屏幕的位置调节。
本发明的有益效果是：区别于现有技术的情况，本发明提供一种固定装置，包括用于与外界固定面固定的固定支架，设置在所述固定支架上的驱动杆以及固定在所述驱动杆上的支撑结构，所述支撑结构用于支撑固定待固定物，通过所述驱动杆的旋转实现所述支撑结构的高度位置连续可调。不仅方便固定，而且方便实现沿高度方向上的位置调节，当应用于投影屏幕时，可以有效实现对于投影屏幕位置的调节，从而实现对投影效果的有效调节。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
 

Claims (14)

  1. 一种固定装置，其特征在于，包括用于与外界固定面固定的固定支架，设置在所述固定支架上的驱动杆以及固定在所述驱动杆上的支撑结构，所述固定支架包括主体部以及自所述主体部向两侧弯折延伸的固定端，所述固定端用于与外界固定面相贴合并固定，所述主体部包括相对设置的顶壁和底壁，所述驱动杆贯穿所述顶壁与所述底壁并与所述固定端间隔设置，所述支撑结构自所述驱动杆向远离外界固定面方向延伸，所述支撑结构用于支撑待固定物，通过所述驱动杆的移动驱动支撑结构在顶壁和底壁之间移动。
  2. 根据权利要求1所述的固定装置，其特征在于，所述支撑结构为异形螺母，包括套设在所述驱动杆上的套设部、自所述套设部向远离外界固定面方向延伸的支撑板和自支撑板向顶壁方向弯折延伸的挡板。
  3. 根据权利要求2所述的固定装置，其特征在于，还包括设置在所述顶壁远离所述底壁的一侧，用于限制所述驱动杆沿轴向位移的固定结构。
  4. 根据权利要求3所述的固定装置，其特征在于，所述固定结构包括抵接在所述顶壁远离底壁的一侧表面的固定板和自固定板延伸的螺孔，所述驱动杆的一端旋入所述螺孔内。
  5. 根据权利要求1所述的固定装置，其特征在于，所述固定端上设置有贯穿的固定孔，所述固定装置通过穿过所述固定孔的紧固件与外界固定面。
  6. 根据权利要求1所述的固定装置，其特征在于，所述驱动杆为螺杆。
  7. 一种投影屏幕，其包括框架和固定在所述框架上的屏幕，其特征在于，包括如权利要求1到6中任意一项所述的固定装置，所述框架为所述待固定物，所述投影屏幕包括设置在所述框架上的固定杆，所述固定装置通过所述支撑结构与固定杆的配合以支撑所述框架。
  8. 根据权利要求7所述的投影屏幕，其特征在于，所述固定杆沿水平方向设置并可滑动地设置在所述固定装置的支撑结构上。
  9. 根据权利要求8所述的投影屏幕，其特征在于，所述投影屏幕还包括与所述框架相连的用于限制所述框架沿水平方向移动的水平锁紧装置。
  10. 根据权利要求9所述的投影屏幕，其特征在于，所述水平锁紧装置包括用于与外界固定面固定的水平固定部以及与所述水平固定部相匹配的顶丝，所述框架上设置有贯穿的螺纹孔，所述顶丝穿过所述螺纹孔与所述水平固定部相连实现与所述框架的锁紧固定。
  11. 根据权利要求10所述的投影屏幕，其特征在于，所述水平固定部上设置有腰形孔，所述水平固定部与外界固定面通过穿过腰形孔的紧固件固定连接。
  12. 根据权利要求11所述的投影屏幕，其特征在于，所述框架包括相对设置的外框架和内框架，所述固定杆设置在所述内框架的上边缘，与所述固定杆配合的所述固定装置设置为至少两个。
  13. 根据权利要求12所述的投影屏幕，其特征在于，所述水平锁紧装置包括至少两个，分别设置在所述投影屏幕沿水平方向的两侧，并与所述外框架锁紧固定。
  14. 一种投影设备，其特征在于，包括投影屏幕和如权利要7至11任意一项所述的投影屏幕。
     
     
PCT/CN2018/071430 2017-11-03 2018-01-04 固定装置、投影屏幕以及投影设备 WO2019085257A1 (zh)

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