WO2022012344A1 - Construction de montage pour écran de projection souple - Google Patents

Construction de montage pour écran de projection souple Download PDF

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Publication number
WO2022012344A1
WO2022012344A1 PCT/CN2021/103985 CN2021103985W WO2022012344A1 WO 2022012344 A1 WO2022012344 A1 WO 2022012344A1 CN 2021103985 W CN2021103985 W CN 2021103985W WO 2022012344 A1 WO2022012344 A1 WO 2022012344A1
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WO
WIPO (PCT)
Prior art keywords
screen
inner frame
installation
soft
projection screen
Prior art date
Application number
PCT/CN2021/103985
Other languages
English (en)
Chinese (zh)
Inventor
唐泽达
李士杰
王霖
李屹
Original Assignee
深圳光峰科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 WO2022012344A1 publication Critical patent/WO2022012344A1/fr

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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

Definitions

  • the utility model relates to the field of projection display equipment, in particular to a soft-screen projection screen installation member.
  • Projection screen is one of the most commonly used products in the peripheral equipment of projection display devices, and is widely used in theaters, schools, homes, large conferences and other occasions.
  • Projection screens currently on the market usually include two types of soft screens and hard screens.
  • hard screens usually rely on a high-hardness backplane to provide support, and the screen needs to be fixedly installed by an assembly process such as lamination.
  • This screen structure can ensure the flatness of the screen, thereby ensuring the viewing effect of high-quality projection display.
  • the back plate is made of metal materials such as honeycomb aluminum, the overall weight is large, and the screen cannot be bent, causing difficulties in installation and transportation. great difficulty.
  • the purpose of the utility model is to provide a soft screen projection screen installation member, which can avoid the defects that the elastic force cannot be adjusted after the spring is tightened and the elastic force cannot be adjusted.
  • the present invention provides a soft-screen projection screen installation member, comprising a soft-screen projection screen assembly and an inner frame assembly, wherein the soft-screen projection screen assembly includes a screen main body and a positioning member disposed on the periphery of the screen main body
  • the inner frame assembly includes an inner frame, a sliding member and an adjusting member, and the sliding member and the positioning member are detachable to hang the screen main body on the inner frame assembly, and the inner frame
  • a tensioning force is provided on the screen main body, an installation through hole is provided at the bottom of the installation slot, and the adjustment piece is penetrated through the installation through hole and abuts with the sliding piece, so as to make the sliding piece moving in a length direction perpendicular to the inner frame to provide tension to the screen body in a length direction perpendicular to
  • the positioning member is a PC backing plate fixed and integral with the screen main body.
  • one of the positioning member and the sliding member is provided with a positioning protrusion, and the other is provided with a positioning hole for inserting the positioning protrusion.
  • the mounting groove structure and the sliding member structure are arranged in coordination, the sliding member includes a limiting portion provided integrally and a sliding portion located above the limiting portion, and the mounting groove includes an inner cavity of the mounting groove and a mounting portion. Slot on top.
  • the sliding member includes an integrally provided limiting portion and a sliding portion located above the limiting portion, the width of the limiting portion is greater than the width of the sliding portion, and the mounting groove structure is coordinated with the sliding portion structure. set up.
  • the width of the limiting portion is greater than the width of the sliding portion, and the width of the inner cavity of the mounting groove is greater than the width of the upper opening of the mounting groove.
  • the width of the inner cavity of the installation groove and the width of the limiting portion are set according to a first preset clearance; the width of the upper opening of the installation groove and the width of the sliding portion are set according to a second preset clearance.
  • the inner cavity of the installation groove has a certain height, and the height of the inner cavity of the installation groove is greater than the height of the limiting portion.
  • the inner frame assembly includes a plurality of inner frames disposed on the sides of the screen main body and corner connectors for fixedly connecting adjacent inner frames.
  • two sliding members are provided on any of the inner frames.
  • the inner frame assembly further includes a reinforcing frame, and two ends of the reinforcing frame are respectively fixed to two opposite inner frames.
  • the soft-screen projection screen installation member further includes an outer frame assembly, and the outer frame assembly includes outer frames respectively disposed on the surrounding sides of the inner frame assembly and corner wrapping pieces for fixedly connecting adjacent outer frames.
  • the outer frame includes a first side wall, and a second bottom wall and a third bottom wall that are respectively bent and extended in the same direction from two opposite edges of the first side wall.
  • the three bottom walls and the first side wall together form a clamping groove, and the end of the third bottom wall away from the first side wall is bent to the inner side of the clamping groove, and the inner frame assembly and the soft screen projection screen are bent.
  • the peripheral edge of the component is clamped in the clamping groove.
  • a positioning boss is provided on the attachment surface of the corner wrapping piece and the outer frame for coordinating insertion into the inner side of the outer frame.
  • the soft screen projection screen installation member includes a soft screen projection screen assembly and an inner frame assembly.
  • the soft screen projection screen assembly includes a screen main body and a positioning member disposed on the periphery of the screen main body.
  • the inner frame assembly includes an inner frame, a sliding member and an adjusting member.
  • the sliding member and the positioning member are detachable to hang the screen main body on the inner frame assembly, and the inner frame has an edge along the inner frame.
  • An installation groove extending in its length direction, the sliding piece is clamped in the installation groove, and can slide along the length direction of the inner frame in the installation groove, so as to align the inner frame in the length direction of the inner frame.
  • the screen body provides tensioning force; the bottom of the installation slot is provided with an installation through hole, and the adjustment piece passes through the installation through hole and abuts with the sliding piece, so as to make the sliding piece move along the edge
  • the movement is perpendicular to the length direction of the inner frame, so as to provide a tension force to the screen main body in the length direction perpendicular to the inner frame.
  • the screen is tensioned by sliding the sliding member along the installation groove, and the sliding member is driven to move in the direction perpendicular to the inner frame of the screen in the direction of the screen plane through the structure in which the adjusting member passes through the installation hole and is in contact with the sliding member.
  • adjustable tension adjustment parts makes up for the defect that the tension cannot be adjusted by the fixed elastic force after the tension structure of the elastic part is tensioned, and can be flexibly adjusted according to needs Adjusts the tension on the screen.
  • Fig. 1 is the front view of a kind of soft screen projection screen installation member of the present utility model
  • FIG. 2 is a front view and a side view of the soft screen projection screen assembly of the present invention
  • FIG. 3 is a front view of the inner frame assembly of the present invention.
  • FIG. 4 is a schematic structural diagram of a sliding member of the present invention.
  • Fig. 5 is the structural representation of the inner frame of the utility model
  • FIG. 6 is a side view of the inner frame assembly of the present invention.
  • FIG. 8 is a schematic diagram of the assembly structure of the soft screen projection screen assembly and the inner frame assembly of the present invention.
  • FIG. 9 is a rear view of another inner frame assembly of the present invention.
  • FIG. 10 is a front view of another soft screen projection screen installation member of the present invention.
  • FIG. 11 is a schematic structural diagram of an outer frame assembly of the present invention.
  • FIG. 13 is a schematic structural diagram of the corner wrapping piece of the present invention.
  • a soft screen projection screen installation member 1 provided by an embodiment of the present invention includes a soft screen projection screen assembly 10 and an inner frame assembly 11.
  • the soft screen projection screen assembly 10 can be suspended and fixed on the inner frame assembly 11 .
  • the soft screen projection screen assembly 10 includes a screen main body 100 and a positioning member 101 disposed on the periphery of the screen main body 100. , the screen main body 100 is fixed with the inner frame assembly 11 through the positioning member 101 .
  • the screen main body 100 and the positioning member 101 may be detachably connected, or may be integrally provided.
  • the positioning member 101 is a PC backing board, and the PC backing board is evenly bonded around the screen main body 100 , so that the screen main body 100 and the PC backing board are fixed as a whole.
  • the inner frame assembly 11 includes an inner frame 12 with an installation groove 121 extending along its length direction, a sliding member 13 and an adjustment member 14 matched with the installation groove 121 .
  • the positioning member 101 forms a detachable connection with the sliding member 13; the sliding member 13 is inserted into the installation groove 121 and forms a sliding connection with the inner frame 12; the installation groove 121 is provided with a bottom
  • the adjustment through hole 1211 is arranged in coordination with the adjustment member 14 .
  • the adjustment member 14 passes through the adjustment through hole 1211 from the side of the inner frame 12 away from the accommodating sliding member 13 to the bottom of the sliding member 13 . catch.
  • the screen main body 100 is fixed with the inner frame assembly 11 through the detachable connection between the positioning member 101 and the sliding member 13 .
  • the positioning member 101 is provided with a positioning hole 1011
  • the sliding member 13 includes an integrally provided limiting portion 130 and a positioning hole 130 located in the limiting portion.
  • the sliding part 131 above the 130 is provided with a positioning convex shaft 132 at the position corresponding to the positioning hole 1011 on the surface of the sliding part 131 close to the surface of the soft screen projection screen assembly 10, and the positioning convex shaft 132 is inserted into the positioning hole 1011 at the corresponding position.
  • the inner frame assembly 11 and the soft screen projection screen assembly 10 are detachably connected.
  • a positioning convex shaft may also be provided on the side of the positioning member 101 close to the sliding member 13 , and a positioning hole may be provided at a corresponding position of the sliding member 13 . That is, any one of the positioning member 101 and the sliding member 13 may be provided with a positioning protrusion, and the other may be provided with a positioning hole for inserting the positioning protrusion.
  • the sliding member 13 is inserted into the mounting slot 121 to slide and move parallel to the extending direction of the inner frame 12 .
  • the installation groove 121 is arranged in coordination with the sliding member 13, so that the sliding member 13 can be inserted from one end of the installation groove 121 to form a sliding connection with the installation groove 121, and at the same time the sliding member 13 is clamped on the installation groove 121.
  • the installation groove 121 restricts it from leaving the installation groove 121 .
  • the sliding member 13 includes a limiting portion 130 integrally provided and a sliding portion 131 located above the limiting portion 130 .
  • the width of the limiting portion 130 is greater than the width of the sliding portion 131 .
  • the mounting groove 121 is approximately in an inverted "T" shape.
  • the inverted "T"-shaped installation groove 121 includes an installation groove cavity 121b and an installation groove upper opening 121a.
  • the height of the inner cavity 121a of the installation groove is greater than the height of the limiting portion 120, so that the sliding member 13 clamped in the installation groove 121 can not only slide parallel to the extending direction of the inner frame 12 to generate displacement, but also can Displacement is generated in the direction perpendicular to the extending direction of the inner frame 12 .
  • the width of the inner cavity 121b of the installation groove is greater than the width of the upper opening 121a of the installation groove.
  • the width of the upper opening 121a of the installation slot and the width of the sliding portion 131 are set with a first predetermined clearance fit, and the width of the installation slot cavity 121b and the width of the limiting portion 120 are set with a second predetermined clearance fit , to limit the excessive displacement of the sliding member 13 in the direction perpendicular to the inner frame 12 , so as to be separated from the installation groove 121 .
  • both the first preset gap and the second preset gap are selected to be 0.1 mm.
  • the preset height interval is 5mm, so that the sliding member 13 can slide in the direction of the inner frame 12 in the screen plane, and move in the direction perpendicular to the inner frame 12 in the screen plane without breaking away Mounting slot 121 .
  • the sliding member is a long strip. It should be noted that the sliding member 13 and the installation groove 121 of the present invention can be arranged in different structural shapes, and the present invention is not limited to this.
  • the bottom of the installation slot 121 is also provided with an installation through hole 1211 , and the adjustment member 14 penetrates the installation through hole 1211 from the side of the inner frame 12 away from the accommodating sliding member 13 to abut against the sliding member 13 . catch.
  • An external force is applied to the adjusting member 14 , so that the adjusting member 14 is displaced in the passing direction, thereby driving the sliding member 13 to move in the screen plane perpendicular to the extending direction of the inner frame 12 .
  • the adjusting member 14 is an adjusting screw, and an adjusting handle 141 is provided at one end of the adjusting screw.
  • the through hole 1211 is in contact with the sliding member 13 , and the adjustment screw is threadedly connected to the installation through hole 1211 .
  • Rotating the adjusting handle 141 of the adjusting screw can make the adjusting screw move up and down, thereby pushing the sliding member 13 to produce displacement in the threading direction (Y direction in FIG. 6 ).
  • the inner frame assembly 11 includes an inner frame 12 disposed on each side of the inner frame assembly 11 and a corner connector 15 for fixedly connecting adjacent inner frames 12 .
  • the inner frame assembly 11 has a frame shape corresponding to the outer contour of the screen.
  • the screen is a rectangle
  • the inner frame assembly 11 is also a rectangle.
  • 12a and two short frames 12b, and the adjacent long and short inner frames are tightly connected by corner connectors 15.
  • the screen can be any shape other than a rectangle
  • the corresponding inner frame assembly can also have any shape other than a rectangle.
  • the fastening connection of the adjacent inner frames can be fixed by corner connectors or directly used. The fasteners are connected, and the present invention is not limited to this.
  • the soft screen projection screen mounting member 1 of the embodiment of the present invention will be described in detail below with reference to FIG. 8 .
  • the soft screen projection screen assembly 10 is placed above the inner frame assembly 11, and a plurality of sliding members 13 are evenly distributed on the inner frame 12 arranged on each side of the inner frame assembly 11. At this time, the limit of the sliding members 13
  • the bottom surface of the part 130 is in contact with the bottom wall of the inner cavity of the installation groove 121 , that is, at this time, the position of the sliding member 13 in the installation groove 121 is at the lowest point.
  • the positioning holes 1011 on the soft screen projection screen assembly 10 are evenly distributed at certain preset intervals, and three positioning convex shafts 122 are arranged on each sliding member 13 at corresponding intervals, on the same inner frame 12
  • the plurality of sliding members 13 are evenly distributed so that any positioning hole on the soft screen projection screen assembly 10 has a positioning convex shaft 132 correspondingly connected to it.
  • any number of positioning protruding shafts 132 can be provided on each sliding member 13, the number of sliding members 13 on the same inner frame 12 can be any number greater than or equal to 2, and the selected number of sliding members 13 satisfies the The same inner frame 12 is evenly distributed, and the positioning protruding shafts 132 provided on each sliding member 13 can be inserted into the corresponding positioning holes 1011 .
  • two sliding members 13 are arranged on the same inner frame 12 , and the sliding members 13 are respectively arranged at both ends of the inner frame 12 . In this case, the number of sliding members 13 is reduced and the installation is easier.
  • a positioning convex shaft may also be provided on the side of the soft screen projection screen assembly 10 close to the inner frame 12 , and a positioning hole may be provided at a corresponding position of the sliding portion 131 . That is, one of the positioning member 101 and the sliding member 121 is provided with a positioning protrusion, and the other is provided with a positioning hole for inserting the positioning protrusion.
  • the sliding member 13 After the soft screen projection screen assembly 10 is connected and positioned to the sliding member 13, adjust the sliding members 13 adjacent to the four corners of the inner frame 12 to slide toward the corners, so as to stretch the screen in the extending direction of the inner frame 12, and simultaneously By adjusting the adjusting member 14 (not shown) disposed on the back of the screen, the sliding member 13 is driven to move in the direction perpendicular to the inner frame 12 in the screen plane, so that the screen is stretched in the direction perpendicular to the extension direction of the inner frame 12. Tighten the screen body to the required flatness, and fix the position of the adjustment member 14 to complete the installation and tension of the soft screen projection screen.
  • the adjustment member 14 in this embodiment adopts a jacking structure instead of the commonly used elastic member stretching structure, which makes up for the After the elastic tension structure is tightened, the elastic force cannot adjust the tension.
  • the tension can be adjusted according to the needs to achieve the designed flatness of the screen. Afterwards, adjust the position of the sliding member 13 at other positions on the inner frame 12 in the same way, so that the tension on each position of the entire screen is uniform, and the screen is not damaged due to excessive tension in a certain place.
  • the inner frame assembly 11 may also include a reinforcing frame 16, and the two ends of the reinforcing frame 16 are respectively connected to the two opposite inner frames 12 by fasteners, further increasing the inner frame 12 stability.
  • the soft screen projection screen installation member of the present invention further includes an outer frame assembly 17 .
  • any one of the outer frames 18 includes a first side wall 181 and a second bottom wall 182 and a third bottom wall 183 which are respectively bent and extended in the same direction by two opposite edges of the first side wall 181 .
  • the corner wrapping piece 19 is used for wrapping and connecting two adjacent outer frames 18 .
  • the outer surface of the corner wrapping piece 19 is flat with the outer surfaces of the two adjacent outer frames.
  • Attachment that is, the cross-sectional shape of the attachment surface 191 of the corner wrap 19 and any outer frame 18 is consistent with the cross-sectional shape of the outer frame 18, and a positioning boss is provided on the attachment surface 191 for coordinating and inserting the outer frame.
  • the inner side of 18 plays the role of fixed connection.
  • the adjustment member 14 is only arranged on the back of the soft screen projection screen, and most of the adjustment member 14 is arranged and accommodated in the inner frame 12, and the space design does not occupy the position of the outer frame 18, correspondingly
  • the size of the entire outer frame assembly 17 can be reduced, which is favorable for designing a narrow frame structure.
  • the utility model provides a soft screen projection screen installation member, which includes a soft screen projection screen assembly and an inner frame assembly.
  • the soft screen projection screen assembly includes a screen main body and a positioning member disposed on the periphery of the screen main body.
  • the inner frame assembly includes an inner frame, a sliding member and an adjusting member. The sliding member and the positioning member are detachable to hang the screen main body on the inner frame assembly, and the inner frame has an edge along the inner frame.
  • An installation groove extending in its length direction, the sliding piece is clamped in the installation groove, and can slide along the length direction of the inner frame in the installation groove, so as to align the inner frame in the length direction of the inner frame.
  • the screen body provides tensioning force; the bottom of the installation slot is provided with an installation through hole, and the adjustment piece passes through the installation through hole and abuts with the sliding piece, so as to make the sliding piece move along the edge
  • the movement is perpendicular to the length direction of the inner frame, so as to provide a tension force to the screen main body in the length direction perpendicular to the inner frame.
  • the screen is tensioned by sliding the sliding member along the installation groove, and the lifting structure of the adjusting member drives the sliding member to move in the direction perpendicular to the inner frame in the screen plane, so as to tension the screen to a greater extent, and obtain Higher flatness, and at the same time, the use of tension-adjustable adjustment parts makes up for the defect that the tension cannot be adjusted by the fixed elastic force after the elastic part is stretched, and the tension of the screen can be flexibly adjusted according to needs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

Le présent modèle d'utilité consiste en une construction de montage pour écran de projection souple qui comprend un ensemble écran de projection souple et un ensemble cadre de bord interne. L'ensemble écran souple comprend un corps d'écran et des éléments de positionnement disposés au niveau de la périphérie du corps d'écran. L'ensemble cadre de bord interne comprend un cadre de bord interne, un élément coulissant et un élément de réglage. L'élément coulissant et l'élément de positionnement permettent de suspendre le corps d'écran sur l'ensemble cadre de bord interne par l'intermédiaire d'une structure détachable. Le cadre de bord interne est pourvu d'une rainure de montage s'étendant dans la direction de la longueur de celui-ci. L'élément coulissant est en prise dans la rainure de montage et coulisse dans la direction de la longueur du cadre de bord interne, fournissant ainsi au corps d'écran une force de tension dans la direction de la longueur du cadre de bord interne. Un trou traversant de montage est prévu au fond de la rainure de montage. L'élément de réglage s'étend à travers le trou traversant de montage et il est en butée contre l'élément coulissant. La construction de montage pour écran de projection souple permet d'ajuster de manière flexible le degré de tension de l'écran selon les besoins, et il fournit également une planéité accrue.
PCT/CN2021/103985 2020-07-14 2021-07-01 Construction de montage pour écran de projection souple WO2022012344A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021371459.X 2020-07-14
CN202021371459.XU CN212623557U (zh) 2020-07-14 2020-07-14 软屏投影幕安装构件

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WO2022012344A1 true WO2022012344A1 (fr) 2022-01-20

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PCT/CN2021/103985 WO2022012344A1 (fr) 2020-07-14 2021-07-01 Construction de montage pour écran de projection souple

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212623557U (zh) * 2020-07-14 2021-02-26 深圳光峰科技股份有限公司 软屏投影幕安装构件

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785047B1 (en) * 2002-12-20 2004-08-31 Draper, Inc. Tensioned projection screen apparatus
CN102829301A (zh) * 2012-08-20 2012-12-19 广东威创视讯科技股份有限公司 一种软幕支撑调节机构
CN208805671U (zh) * 2018-11-12 2019-04-30 西安翻译学院 一种英语慕课教学的屏幕固定装置
CN109752910A (zh) * 2017-11-03 2019-05-14 深圳光峰科技股份有限公司 固定装置、投影屏幕以及投影设备
CN110018607A (zh) * 2018-01-10 2019-07-16 深圳光峰科技股份有限公司 屏幕设备及投影系统
CN212623557U (zh) * 2020-07-14 2021-02-26 深圳光峰科技股份有限公司 软屏投影幕安装构件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785047B1 (en) * 2002-12-20 2004-08-31 Draper, Inc. Tensioned projection screen apparatus
CN102829301A (zh) * 2012-08-20 2012-12-19 广东威创视讯科技股份有限公司 一种软幕支撑调节机构
CN109752910A (zh) * 2017-11-03 2019-05-14 深圳光峰科技股份有限公司 固定装置、投影屏幕以及投影设备
CN110018607A (zh) * 2018-01-10 2019-07-16 深圳光峰科技股份有限公司 屏幕设备及投影系统
CN208805671U (zh) * 2018-11-12 2019-04-30 西安翻译学院 一种英语慕课教学的屏幕固定装置
CN212623557U (zh) * 2020-07-14 2021-02-26 深圳光峰科技股份有限公司 软屏投影幕安装构件

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