CN103676437B - Suspension hanger system - Google Patents
Suspension hanger system Download PDFInfo
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- CN103676437B CN103676437B CN201210345607.4A CN201210345607A CN103676437B CN 103676437 B CN103676437 B CN 103676437B CN 201210345607 A CN201210345607 A CN 201210345607A CN 103676437 B CN103676437 B CN 103676437B
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Abstract
Description
技术领域 technical field
本发明涉及一种悬挂吊架系统及其角度调整单元,特别涉及一种投影装置的悬挂吊架系统及其角度调整单元。 The invention relates to a suspension hanger system and an angle adjustment unit thereof, in particular to a suspension hanger system of a projection device and an angle adjustment unit thereof.
背景技术 Background technique
现有的投影装置的悬挂吊架系统,一般仅提供五个自由度,并无法将投影装置的位置调整至最佳状态。此外,在现有的调校过程中,主要是以手动的方式调整两个部件之间的角度或方位,后再以螺丝进行锁固,此方式并无法提供细微的调整。并且,在螺丝锁固的过程中,原来调整好的位置容易发生微小变动,因而造成投影画面的形状变形或尺寸改变。 The suspension hanger system of the existing projection device generally only provides five degrees of freedom, and cannot adjust the position of the projection device to an optimal state. In addition, in the existing adjustment process, the angle or orientation between the two components is mainly adjusted manually, and then locked with screws, which cannot provide fine adjustments. Moreover, in the process of screw locking, the originally adjusted position is prone to slight changes, thus causing the shape deformation or size change of the projection screen.
发明内容 Contents of the invention
本发明即为了欲解决现有技术的问题而提供的一种悬挂吊架系统及其角度调整单元。 The present invention provides a suspension hanger system and an angle adjustment unit thereof in order to solve the problems of the prior art.
本发明提出一种悬挂吊架系统,包括一固定座、一基座、一Y轴平移单元、一杆体、一X轴平移单元、一伸缩杆、一Z轴平移单元以及一角度调整单元。基座连接该固定座。Y轴平移单元连接该固定座以及该基座,该基座通过该Y轴平移单元,相对该固定座沿一Y轴移动。杆体连接该基座。X轴平移单元连接该杆体以及该基座,该杆体通过该X轴平移单元,相对该基座沿一X轴移动。伸缩杆连接该杆体。Z轴平移单元连接该杆体以及该伸缩杆,该伸缩杆通过该Z轴平移单元,相对该杆体沿一Z轴移动。角度调整单元连接该伸缩杆。 The invention proposes a suspension hanger system, which includes a fixed base, a base, a Y-axis translation unit, a rod body, an X-axis translation unit, a telescopic rod, a Z-axis translation unit and an angle adjustment unit. The base is connected with the fixing seat. The Y-axis translation unit is connected to the fixed base and the base, and the base moves relative to the fixed base along a Y-axis through the Y-axis translation unit. The rod body is connected to the base. The X-axis translation unit is connected to the rod body and the base, and the rod body moves along an X-axis relative to the base through the X-axis translation unit. A telescopic rod is connected to the rod body. The Z-axis translation unit is connected to the rod body and the telescopic rod, and the telescopic rod moves along a Z-axis relative to the rod body through the Z-axis translation unit. The angle adjustment unit is connected with the telescopic rod.
本发明的实施例的角度调整单元更包括一座体、一第一钣件、一Y轴旋转单元、一第二钣件、一X轴旋转单元、一第三钣件以及一Z轴旋转单元。第一钣件连接该座体。Y轴旋转单元连接该座体以及该第一钣件,该第一钣件通过该Y轴旋转单元,相对该座体绕一Y轴转动。第二钣件连接该第一钣件。X轴旋转单元连接该第一钣件以及该第二钣件,该第二钣件通过该X轴旋转单元,相对该第一钣件绕一X轴转动。第三钣件相对该第一钣件枢转。该第三钣件通过该Z轴旋转单元,相对该第一钣件绕一Z轴转动。 The angle adjusting unit of the embodiment of the present invention further includes a base, a first plate, a Y-axis rotation unit, a second plate, an X-axis rotation unit, a third plate, and a Z-axis rotation unit. The first sheet part is connected with the seat body. The Y-axis rotation unit connects the base body and the first plate, and the first plate rotates around a Y-axis relative to the base through the Y-axis rotation unit. The second sheet part connects the first sheet part. The X-axis rotation unit connects the first sheet and the second sheet, and the second sheet rotates around an X-axis relative to the first sheet through the X-axis rotation unit. The third panel pivots relative to the first panel. The third plate is rotated around a Z axis relative to the first plate through the Z-axis rotating unit.
本发明提出一种悬挂吊架系统,包括一固定座;一基座,连接该固定座一Y轴平移单元,连接该固定座以及该基座,该基座通过该Y轴平移单元,相对该固定座沿一Y轴移动;一杆体,连接该基座;一X轴平移单元,连接该杆体以及该基座,该杆体通过该X轴平移单元,相对该基座沿一X轴移动;一伸缩杆,连接该杆体;一Z轴平移单元,连接该杆体以及该伸缩杆,该伸缩杆通过该Z轴平移单元,相对该杆体沿一Z轴移动,该X轴、该Y轴以及该Z轴彼此代表不同方向;一角度调整单元,连接该伸缩杆,该角度调整单元包括:一座体;一第一钣件,连接该座体;一Y轴旋转单元,连接该座体以及该第一钣件,该第一钣件通过该Y轴旋转单元,相对该座体绕该Y轴转动;一第二钣件,连接该第一钣件;一X轴旋转单元,连接该第一钣件以及该第二钣件,该第二钣件通过该X轴旋转单元,相对该第一钣件绕该X轴转动;一第三钣件,相对该第一钣件枢转;以及一Z轴旋转单元,该第三钣件通过该Z轴旋转单元,相对该第一钣件绕该Z轴转动。 The present invention proposes a suspension hanger system, comprising a fixed seat; a base, connected to the fixed seat and a Y-axis translation unit, connected to the fixed seat and the base, and the base passes through the Y-axis translation unit, relative to the The fixed seat moves along a Y-axis; a rod body is connected to the base; an X-axis translation unit is connected to the rod body and the base, and the rod body moves along an X-axis relative to the base through the X-axis translation unit; A telescopic rod is connected to the rod body; a Z-axis translation unit is connected to the rod body and the telescopic rod, the telescopic rod moves along a Z-axis relative to the rod body through the Z-axis translation unit, the X-axis, the Y-axis and the Z-axis The axes represent different directions; an angle adjustment unit is connected to the telescopic rod, and the angle adjustment unit includes: a base; a first sheet piece, connected to the base; a Y-axis rotation unit, connected to the base and the first sheet, the first sheet rotates around the Y axis relative to the base through the Y-axis rotation unit; a second sheet, connected to the first sheet; an X-axis rotation unit, connected to the first sheet and the second sheet, the second sheet rotates around the X axis relative to the first sheet through the X-axis rotation unit; a third sheet pivots relative to the first sheet; and a Z axis The rotation unit, the third sheet piece rotates around the Z axis relative to the first sheet piece through the Z axis rotation unit.
应用本发明实施例的悬挂吊架系统,可以在六个自由度下(三个平移,三个旋转)对投影装置的位置进行微调,因此方便使用者简单将投影装置调整至适当位置。此外,针对平移运动,由于本发明实施例采用侧边锁附的形式固定,并采用平移微调螺丝进行微调,因此可增加结构稳定度并减少晃动。针对旋转运动,本发明实施例采用旋转微调螺丝进行微调,并使用定位螺丝进行定位,因此可降低旋转时的不稳定及晃动现象。 Using the suspension hanger system of the embodiment of the present invention, the position of the projection device can be fine-tuned in six degrees of freedom (three translations, three rotations), so it is convenient for the user to simply adjust the projection device to an appropriate position. In addition, for the translational movement, since the embodiment of the present invention adopts the side locking method to fix, and uses the translation fine-tuning screw for fine-tuning, the structural stability can be increased and the shaking can be reduced. For the rotational movement, the embodiment of the present invention adopts the rotating fine-tuning screw for fine-tuning, and uses the positioning screw for positioning, so that the instability and shaking during rotation can be reduced.
附图说明 Description of drawings
图1A显示本发明实施例的悬挂吊架系统的立体图; Figure 1A shows a perspective view of a suspension hanger system according to an embodiment of the present invention;
图1B显示本发明实施例的悬挂吊架系统的前视图; Figure 1B shows a front view of the suspension hanger system of an embodiment of the present invention;
图1C显示本发明实施例的悬挂吊架系统的侧视图; Figure 1C shows a side view of the suspension hanger system of an embodiment of the present invention;
图2A显示本发明实施例的Y轴平移单元的细部结构; FIG. 2A shows the detailed structure of the Y-axis translation unit of the embodiment of the present invention;
图2B显示本发明实施例的X轴平移单元的细部结构; FIG. 2B shows the detailed structure of the X-axis translation unit of the embodiment of the present invention;
图2C显示本发明实施例的Z轴平移单元的细部结构; FIG. 2C shows the detailed structure of the Z-axis translation unit of the embodiment of the present invention;
图3A显示本发明实施例的Y轴旋转单元的细部结构; FIG. 3A shows the detailed structure of the Y-axis rotation unit of the embodiment of the present invention;
图3B显示本发明实施例的X轴旋转单元的细部结构; FIG. 3B shows the detailed structure of the X-axis rotation unit of the embodiment of the present invention;
图3C显示本发明实施例的Z轴旋转单元的细部结构;以及 FIG. 3C shows the detailed structure of the Z-axis rotation unit of the embodiment of the present invention; and
图4A以及图4B显示本发明实施例的Z轴旋转单元的旋转微调步骤。 4A and 4B show the rotation fine-tuning steps of the Z-axis rotation unit according to the embodiment of the present invention.
其中,附图标记说明如下: Wherein, the reference signs are explained as follows:
1~悬挂吊架 1~suspension hanger
110~固定座 110~fixed seat
120~基座 120~base
130~Y轴平移单元 130~Y-axis translation unit
131~Y轴平移微调螺丝 131 ~ Y-axis translation fine-tuning screw
140~杆体 140~rod body
150~X轴平移单元 150~X-axis translation unit
151~X轴平移微调螺丝 151~X-axis translation fine-tuning screw
160~伸缩杆 160~Telescopic rod
170~Z轴平移单元 170~Z-axis translation unit
171~Z轴平移微调螺丝 171~Z-axis translation fine-tuning screw
172~Z轴平移粗调螺丝 172~ Z-axis translation coarse adjustment screw
20~角度调整单元 20~angle adjustment unit
210~座体 210~seat body
211~X轴旋转微调槽孔 211~X-axis rotation fine-tuning slot
212~Z轴旋转微调槽孔 212~Z-axis rotation fine-tuning slot
220~第一钣件 220~the first sheet
230~Y轴旋转单元 230~Y axis rotation unit
231~Y轴旋转轴 231~Y axis rotation axis
232~Y轴旋转微调螺丝 232~Y-axis rotation fine-tuning screw
233~Y轴旋转定位螺丝 233~Y-axis rotation positioning screw
240~第二钣件 240~Second sheet
250~X轴旋转单元 250~X axis rotation unit
251~X轴旋转轴 251~X axis rotation axis
252~X轴旋转微调螺丝 252~X-axis rotation fine-tuning screw
253~X轴旋转定位螺丝 253~X-axis rotation positioning screw
260~第三钣件 260~the third sheet
270~Z轴旋转单元 270~Z axis rotation unit
271~Z轴旋转轴 271~Z axis rotation axis
272~Z轴旋转微调螺丝 272~Z-axis rotation fine-tuning screw
273~Z轴旋转定位螺丝 273~Z axis rotation positioning screw
具体实施方式 detailed description
参照图1A、图1B以及图1C,其显示本发明实施例的悬挂吊架系统1,包括一固定座110、一基座120、一Y轴平移单元130、一杆体140、一X轴平移单元150、一伸缩杆160、一Z轴平移单元170以及一角度调整单元20。 Referring to Fig. 1A, Fig. 1B and Fig. 1C, it shows that the suspension hanger system 1 of the embodiment of the present invention includes a fixed seat 110, a base 120, a Y-axis translation unit 130, a rod body 140, and an X-axis translation unit 150 , a telescopic rod 160 , a Z-axis translation unit 170 and an angle adjustment unit 20 .
参照图2A,Y轴平移单元130连接该固定座110以及该基座120,该基座120通过该Y轴平移单元130,相对该固定座110沿Y轴移动。参照图2B,X轴平移单元150连接该杆体140以及该基座120,该杆体140通过该X轴平移单元150,相对该基座120沿X轴移动。参照图2C,Z轴平移单元170连接该杆体140以及该伸缩杆160,该伸缩杆160通过该Z轴平移单元170,相对该杆体140沿Z轴移动。角度调整单元20连接该伸缩杆160。 Referring to FIG. 2A , the Y-axis translation unit 130 is connected to the fixed base 110 and the base 120 , and the base 120 moves along the Y-axis relative to the fixed base 110 through the Y-axis translation unit 130 . Referring to FIG. 2B , the X-axis translation unit 150 is connected to the rod body 140 and the base 120 , and the rod body 140 moves along the X-axis relative to the base 120 through the X-axis translation unit 150 . Referring to FIG. 2C , the Z-axis translation unit 170 is connected to the rod body 140 and the telescopic rod 160 , and the telescopic rod 160 moves along the Z-axis relative to the rod body 140 through the Z-axis translation unit 170 . The angle adjustment unit 20 is connected with the telescopic rod 160 .
在此实施例中,该X轴、该Y轴以及该Z轴彼此垂直。 In this embodiment, the X axis, the Y axis and the Z axis are perpendicular to each other.
再参照图2A,该Y轴平移单元130包括一Y轴平移微调螺丝131,该Y轴平移微调螺丝131连接该基座120以及该固定座110,通过旋转该Y轴平移微调螺丝131,该基座120以及该固定座110在该Y轴上的相对位置被调整。 2A, the Y-axis translation unit 130 includes a Y-axis translation fine-tuning screw 131, the Y-axis translation fine-tuning screw 131 is connected to the base 120 and the fixing base 110, by rotating the Y-axis translation fine-tuning screw 131, the base The relative positions of the base 120 and the fixing base 110 on the Y-axis are adjusted.
再参照图2B,该X轴平移单元150包括一X轴平移微调螺丝151,该X轴平移微调螺丝151连接该基座120以及该杆体140,通过旋转该X轴平移微调螺丝151,该基座120以及该杆体140在该X轴上的相对位置被调整。 2B, the X-axis translation unit 150 includes an X-axis translation fine-tuning screw 151, the X-axis translation fine-tuning screw 151 is connected to the base 120 and the rod body 140, by rotating the X-axis translation fine-tuning screw 151, the base 120 and the relative positions of the rod body 140 on the X-axis are adjusted.
参照图2C,该Z轴平移单元170包括一Z轴平移微调螺丝171,该Z轴平移微调螺丝171连接该杆体140以及该伸缩杆160,通过旋转该Z轴平移微调螺丝171,该杆体140以及该伸缩杆160在该Z轴上的相对位置被调整。 Referring to FIG. 2C, the Z-axis translation unit 170 includes a Z-axis translation fine-tuning screw 171, which is connected to the rod body 140 and the telescopic rod 160. By rotating the Z-axis translation fine-tuning screw 171, the rod body 140 and the telescopic rod 160 are connected. The relative position of the telescopic rod 160 on the Z axis is adjusted.
该Z轴平移单元170更包括至少一Z轴平移粗调螺丝172,当该Z轴平移粗调螺丝172卸除时,该杆体140以及该伸缩杆160在该Z轴上的相对位置可自由被手动调整。 The Z-axis translation unit 170 further includes at least one Z-axis translation coarse adjustment screw 172. When the Z-axis translation coarse adjustment screw 172 is removed, the relative positions of the rod body 140 and the telescopic rod 160 on the Z-axis can be freely adjusted. Adjust manually.
参照图1A、图1B以及图1C,角度调整单元20包括一座体210、一第一钣件220、一Y轴旋转单元230、一第二钣件240、一X轴旋转单元250、一第三钣件260以及一Z轴旋转单元270。 1A, FIG. 1B and FIG. 1C, the angle adjustment unit 20 includes a body 210, a first plate 220, a Y-axis rotation unit 230, a second plate 240, an X-axis rotation unit 250, a third The sheet piece 260 and a Z-axis rotation unit 270 .
Y轴旋转单元230连接该座体210以及该第一钣件220,该第一钣件220通过该Y轴旋转单元230,相对该座体210绕Y轴转动。X轴旋转单元250连接该第一钣件220以及该第二钣件240,该第二钣件240通过该X轴旋转单元250,相对该第一钣件220绕X轴转动。第三钣件260相对该第一钣件220枢转。该第三钣件260通过该Z轴旋转单元270,相对该第一钣件220绕Z轴转动。 The Y-axis rotation unit 230 is connected to the base 210 and the first sheet 220 , and the first sheet 220 rotates around the Y-axis relative to the base 210 through the Y-axis rotation unit 230 . The X-axis rotation unit 250 connects the first sheet 220 and the second sheet 240 , and the second sheet 240 rotates around the X-axis relative to the first sheet 220 through the X-axis rotation unit 250 . The third plate 260 pivots relative to the first plate 220 . The third sheet part 260 is rotated around the Z axis relative to the first sheet part 220 through the Z-axis rotating unit 270 .
参照图3A,该Y轴旋转单元230包括一Y轴旋转轴231、一Y轴旋转微调螺丝232以及一Y轴旋转定位螺丝233,该Y轴旋转轴231穿过该第一钣件220以及该座体210,该Y轴旋转微调螺丝232穿过该第一钣件220并连接该第一钣件220以及该座体210,通过旋转该Y轴旋转微调螺丝232,该第一钣件220相对该座体210绕该Y轴旋转轴231旋转,该Y轴旋转定位螺丝233抵接该第一钣件220,以定位该第一钣件220。 3A, the Y-axis rotation unit 230 includes a Y-axis rotation shaft 231, a Y-axis rotation fine-tuning screw 232 and a Y-axis rotation positioning screw 233, and the Y-axis rotation shaft 231 passes through the first plate 220 and the The base 210, the Y-axis rotating fine-tuning screw 232 passes through the first sheet 220 and connects the first sheet 220 and the seat 210, by rotating the Y-axis rotating fine-tuning screw 232, the first sheet 220 is relatively The seat body 210 rotates around the Y-axis rotation axis 231 , and the Y-axis rotation positioning screw 233 abuts against the first plate 220 to position the first plate 220 .
参照图3B,该X轴旋转单元250包括一X轴旋转轴251、一X轴旋转微调螺丝252以及一X轴旋转定位螺丝253,该X轴旋转轴251穿过该第一钣件220以及该第二钣件240,该X轴旋转微调螺丝252穿过该第二钣件240并连接该第一钣件220以及该第二钣件240,通过旋转该X轴旋转微调螺丝252,该第二钣件240相对该第一钣件220绕该X轴旋转轴251旋转,该X轴旋转定位螺丝253抵接该第二钣件240,以定位该第二钣件240。 3B, the X-axis rotation unit 250 includes an X-axis rotation shaft 251, an X-axis rotation fine-tuning screw 252 and an X-axis rotation positioning screw 253, and the X-axis rotation shaft 251 passes through the first plate 220 and the The second sheet 240, the X-axis rotation fine-tuning screw 252 passes through the second sheet 240 and connects the first sheet 220 and the second sheet 240, by rotating the X-axis rotation fine-tuning screw 252, the second The sheet part 240 rotates around the X-axis rotation axis 251 relative to the first sheet part 220 , and the X-axis rotation positioning screw 253 abuts against the second sheet part 240 to position the second sheet part 240 .
该座体210上形成有X轴旋转微调槽孔211,该X轴旋转微调螺丝252以及X轴旋转定位螺丝253分别穿过X轴旋转微调槽孔211。在此实施例中,该X轴旋转微调槽孔211呈弧状。 The base body 210 is formed with an X-axis rotation fine-tuning slot 211 , and the X-axis rotation fine-tuning screw 252 and the X-axis rotation positioning screw 253 respectively pass through the X-axis rotation fine-tuning slot 211 . In this embodiment, the X-axis fine-tuning slot 211 is arc-shaped.
参照图3C,该Z轴旋转单元270包括一Z轴旋转轴271、一Z轴旋转微调螺丝272以及一Z轴旋转定位螺丝273,该Z轴旋转轴271穿过该第二钣件240以及该第三钣件260,该Z轴旋转微调螺丝272穿过该第三钣件260并连接该第一钣件220以及该第三钣件260,通过旋转该Z轴旋转微调螺丝272,该第三钣件260相对该第一钣件220绕该Z轴旋转轴271旋转,该Z轴旋转定位螺丝273抵接该第三钣件260,以定位该第三钣件260。 3C, the Z-axis rotation unit 270 includes a Z-axis rotation shaft 271, a Z-axis rotation fine-tuning screw 272 and a Z-axis rotation positioning screw 273, and the Z-axis rotation shaft 271 passes through the second plate 240 and the The third sheet 260, the Z-axis rotation fine-tuning screw 272 passes through the third sheet 260 and connects the first sheet 220 and the third sheet 260, by rotating the Z-axis rotation fine-tuning screw 272, the third The sheet part 260 rotates around the Z-axis rotation axis 271 relative to the first sheet part 220 , and the Z-axis rotation positioning screw 273 abuts against the third sheet part 260 to position the third sheet part 260 .
该座体210上形成有Z轴旋转微调槽孔212,该Z轴旋转微调螺丝272以及该Z轴旋转定位螺丝273分别穿过Z轴旋转微调槽孔212。该Z轴旋转微调槽孔212呈弧状。 The seat body 210 is formed with a Z-axis rotation fine-tuning slot 212 , and the Z-axis rotation fine-tuning screw 272 and the Z-axis rotation positioning screw 273 respectively pass through the Z-axis rotation fine-tuning slot 212 . The Z-axis rotation fine-tuning slot 212 is arc-shaped.
参照图4A以及图4B,在此以Z轴旋转单元270为例,说明本发明的旋转微调步骤。首先,Z轴旋转定位螺丝273松开;接着,旋转Z轴旋转微调螺丝272以调整第三钣件260的方位;最后,锁紧Z轴旋转定位螺丝273以固定第三钣件260的方位。X轴旋转单元以及Y轴旋转单元的微调方式与Z轴旋转单元的微调方式相同。 Referring to FIG. 4A and FIG. 4B , taking the Z-axis rotation unit 270 as an example, the rotation fine-tuning steps of the present invention are described. First, loosen the Z-axis rotation positioning screw 273; then, rotate the Z-axis rotation fine-tuning screw 272 to adjust the orientation of the third sheet 260; finally, tighten the Z-axis rotation positioning screw 273 to fix the orientation of the third sheet 260. The fine-tuning method of the X-axis rotation unit and the Y-axis rotation unit is the same as that of the Z-axis rotation unit.
应用本发明实施例的悬挂吊架系统,可以在六个自由度下(三个平移,三个旋转)对投影装置的位置进行微调,因此方便使用者简单将投影装置调整至适当位置。此外,针对平移运动,由于本发明实施例采用侧边锁附的形式固定,并采用平移微调螺丝进行微调,因此可增加结构稳定度并减少晃动。针对旋转运动,本发明实施例采用旋转微调螺丝进行微调,并使用定位螺丝进行定位,因此可降低旋转时的不稳定及晃动现象。 Using the suspension hanger system of the embodiment of the present invention, the position of the projection device can be fine-tuned in six degrees of freedom (three translations, three rotations), so it is convenient for the user to simply adjust the projection device to an appropriate position. In addition, for the translational movement, since the embodiment of the present invention adopts the side locking method to fix, and uses the translation fine-tuning screw for fine-tuning, the structural stability can be increased and the shaking can be reduced. For the rotational movement, the embodiment of the present invention adopts the rotating fine-tuning screw for fine-tuning, and uses the positioning screw for positioning, so that the instability and shaking during rotation can be reduced.
虽然本发明已以具体的较佳实施例揭露如上,然其并非用以限定本发明,任何本领域普通技术人员,在不脱离本发明的精神和范围内,仍可作些许的更动与润饰,因此本发明的保护范围当视所附的权利要求所界定者为准。 Although the present invention has been disclosed above with specific preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can still make some changes and modifications without departing from the spirit and scope of the present invention. , so the protection scope of the present invention should be defined by the appended claims.
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CN105527785A (en) * | 2014-09-30 | 2016-04-27 | 海信集团有限公司 | Adjusting support for projection equipment and laser projection TV |
TWI567475B (en) * | 2014-12-02 | 2017-01-21 | 明基電通股份有限公司 | Projection fixing apparatus |
CN105843714B (en) * | 2015-01-15 | 2019-10-25 | 上海通用汽车有限公司 | Assess the reflective dazzling device and method of vehicle-carrying display screen |
CN105299400B (en) * | 2015-10-22 | 2018-09-21 | 青岛海信移动通信技术股份有限公司 | A kind of adjustable base and projection device of projection device |
CN206786265U (en) * | 2017-05-30 | 2017-12-22 | 浙江石井工具有限公司 | Laser pastes the hanging device for positioning and supporting of mural circle |
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