CN211956104U - Projection screen device - Google Patents
Projection screen device Download PDFInfo
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- CN211956104U CN211956104U CN202020165085.XU CN202020165085U CN211956104U CN 211956104 U CN211956104 U CN 211956104U CN 202020165085 U CN202020165085 U CN 202020165085U CN 211956104 U CN211956104 U CN 211956104U
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- projection screen
- hole
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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
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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
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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
Abstract
The utility model provides a projection screen device, which comprises a projection screen and a screen fixing and adjusting device; the screen fixing and adjusting device comprises a screen fixing mechanism and a connecting and adjusting mechanism; the connection adjusting mechanism is used for adjusting the displacement of the screen fixing mechanism along the second direction so as to adjust the displacement of the projection screen along the second direction, and is provided with a first elongated waist-shaped hole extending along the third direction; the screen fixing mechanism comprises an angle clamp which is abutted against the projection screen and a connecting piece which extends from the angle clamp to the direction of connecting the adjusting mechanism, and the connecting piece is inserted into the first waist-shaped hole to form sliding connection for adjusting the displacement of the projection screen along the first direction and the third direction; the first direction is perpendicular to the projection screen, and the first direction, the second direction and the third direction are mutually perpendicular in pairs. Compared with the prior art, the utility model discloses a projection screen device has that three-dimensional degree of freedom is adjustable, adjustable whole screen plane degree, light in weight and easily transportation and installation.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a projection screen technical field especially relates to a projection screen device.
[ background of the invention ]
With the continuous improvement of living standard of people, the large-size projection screen is more and more popular.
The related art projection screen assembly includes a projection screen and a fixing device to fix the projection screen to a wall.
However, the current projection screen devices are generally hard screen devices or soft screen devices. Hard screen devices such as ultra-short-focus fresnel light-resistant projection screens of 100 inches or more in size generally use a high-hardness back plate, and the fresnel screens are fixed by adopting assembly processes such as bonding and the like. The mounting mode can ensure the flatness of the screen, thereby ensuring the viewing effect of high-quality projection display, but when the wall surface is uneven or inclined, the traditional back plate mounting mode can not ensure the good flatness of the screen. In addition, the back plate is made of metal materials such as honeycomb aluminum and the like, so that the whole weight is heavy, the screen cannot be bent, and great difficulty is caused to installation and transportation. The soft screen device generally adopts the scheme of a projection screen and screen frames, the frame provides uniform force on four sides of the projection screen by virtue of springs, so that tension on the upper side, the lower side, the left side and the right side of the projection screen is provided, the upper side, the lower side, the left side and the right side of the projection screen are connected into a whole, the folding or the curling transportation cannot be realized, and the installation and the carrying process are relatively troublesome.
Therefore, there is a need to provide a new projection screen device to solve the above-mentioned technical problems.
[ Utility model ] content
The utility model aims at overcoming above-mentioned technical problem, provide a projection screen device that adjustable, the adjustable whole screen plane degree of freedom, light in weight just easily transported and installed with three-dimensional.
In order to achieve the above object, the present invention provides a projection screen device, which includes a projection screen and a screen fixing and adjusting device; the screen fixing and adjusting device comprises a screen fixing mechanism fixed on the projection screen and a connecting and adjusting mechanism connected with the screen fixing mechanism and used for being installed and fixed on a target object surface;
the connection adjusting mechanism is used for adjusting the displacement of the screen fixing mechanism along the second direction so as to adjust the displacement of the projection screen along the second direction, and is provided with a first elongated waist-shaped hole extending along the third direction;
the screen fixing mechanism comprises an angle clamp abutted to the projection screen and a connecting piece extending from the angle clamp to the direction of the connection adjusting mechanism, and the connecting piece is inserted into the first waist-shaped hole to form sliding connection for adjusting the displacement of the projection screen along the first direction and the third direction; the first direction is perpendicular to the projection screen, and the first direction, the second direction and the third direction are mutually perpendicular in pairs.
Preferably, the screen fixing mechanism further comprises a fastener, and the fastener penetrates through the angle clamp and abuts against the projection screen to fix the projection screen to the angle clamp.
Preferably, the corner clip comprises a first corner clip extending along the second direction and a second corner clip extending along the third direction, one end of the first corner clip is vertically connected to one end of the second corner clip, and the first corner clip and the second corner clip respectively fix two adjacent sides of one corner of the projection screen;
the connection adjusting mechanism comprises a fixed block which is provided with a clamping groove and is used for being fixed on the target object surface, and a sliding block which is arranged in the clamping groove and forms sliding connection, the clamping groove extends along the second direction, and the first waist-shaped hole is formed in the sliding block;
the sliding block slides and is fixed in the clamping groove along the second direction so as to adjust the displacement of the screen fixing mechanism along the second direction.
Preferably, the screen fixing mechanism further comprises a reinforcing plate respectively connected with the first angle clamp and the second angle clamp, the connecting piece is arranged on the reinforcing plate, the reinforcing plate is arranged on the same side of the first direction as the first angle clamp and the second angle clamp, and the projection screen is arranged on one side of the reinforcing plate far away from the connecting piece.
More preferably, the fastener comprises a first fastener and a second fastener;
the first corner clamp comprises a first accommodating groove extending along the second direction and a first fixing hole penetrating through the first accommodating groove, the first fixing hole is communicated with the first accommodating groove, and the first fastening piece is inserted into the first fixing hole to form a fixing structure;
the second corner clamp comprises a second accommodating groove and a second fixing hole, the second accommodating groove extends along the third direction and is communicated with the first accommodating groove, the second fixing hole penetrates through the second accommodating groove, the second fixing hole is communicated with the second accommodating groove, and the second fastening piece is inserted into the second fixing hole to form a fixing structure;
one corner of the projection screen is inserted into the first accommodating groove and the second accommodating groove respectively, the first fastening piece extends into the first accommodating groove and fixes the projection screen in the first accommodating groove, and the second fastening piece extends into the second accommodating groove and fixes the projection screen in the second accommodating groove.
Preferably, the first fastening member includes a plurality of members, and the second fastening member includes a plurality of members.
Preferably, the first corner clamp further includes a first extrusion strip, an end of the first receiving groove away from the second receiving groove is defined as a first open end, the first extrusion strip is inserted into the first receiving groove from the first open end and abuts against the projection screen, and the first fastener abuts against the first extrusion strip so that the first extrusion strip fixes the projection screen;
the second corner clamp further comprises a third extrusion strip, one end, far away from the first containing groove, of the second containing groove is defined as a second opening end, the third extrusion strip is inserted into the second containing groove from the second opening end and abuts against the projection screen, and the second fastener abuts against the third extrusion strip so that the third extrusion strip can fix the projection screen.
Preferably, the first fixing holes include two first fastening pieces, each of the first fastening pieces is inserted into one corresponding first fixing hole, the first corner clamp further includes a second extrusion strip, the first extrusion strip and the second extrusion strip are respectively inserted into the first accommodating groove from the first opening end and clamp the projection screen, and the two first fastening pieces respectively abut against the first extrusion strip and the second extrusion strip so that the first extrusion strip and the second extrusion strip generate friction force to fix the projection screen;
the second fixing hole comprises two second fastening pieces, each second fastening piece is inserted into one corresponding second fixing hole, the second corner clamp further comprises a fourth extrusion strip, the third extrusion strip and the fourth extrusion strip are inserted into the second containing groove from the second opening end respectively and clamp the projection screen, and the two second fastening pieces are abutted against the third extrusion strip and the fourth extrusion strip respectively to enable the third extrusion strip and the fourth extrusion strip to generate friction force to fix the projection screen.
Preferably, the connection adjusting mechanism further comprises a fixing block fixed on the fixing block and extending to the limiting part in the clamping groove along the second direction, and the limiting part is abutted against and fixed on one side of the sliding block close to the center of the projection screen to adjust the displacement of the screen fixing mechanism along the second direction.
Preferably, the connecting piece comprises a first connecting piece and a second connecting piece which are spaced from each other;
the sliding block comprises a first sliding block, a second sliding block arranged on one side of the first sliding block far away from the center of the projection screen, and fastening studs respectively connected with the first sliding block and the second sliding block,
the first waist-shaped hole penetrates through the first sliding block, the second sliding block is provided with a second waist-shaped hole penetrating through the second sliding block, the second waist-shaped hole extends along the third direction and is in a long strip shape, the first connecting piece is inserted into the first waist-shaped hole, and the second connecting piece is inserted into the second waist-shaped hole;
the first sliding block and the second sliding block are fixed through the fastening studs, and the fastening studs adjust the distance between the first waist-shaped holes and the second waist-shaped holes and enable the distance to be smaller than the distance between the first connecting piece and the second connecting piece so as to enable the connecting pieces to be fixed on the sliding blocks;
the depth of the first connecting piece inserted into the first waist-shaped hole along the first direction and the depth of the second connecting piece inserted into the second waist-shaped hole along the first direction are used for adjusting the displacement of the projection screen along the first direction;
the first connecting piece is inserted into the position of the first waist-shaped hole along the third direction, and the second connecting piece is inserted into the position of the second waist-shaped hole along the third direction so as to adjust the displacement of the projection screen along the third direction.
Preferably, the outer surface of at least one end of the fastening stud is provided with an external thread;
the first sliding block is also provided with a first through hole penetrating through the first sliding block along the second direction, and the inner wall of the first through hole is provided with an internal thread matched with the external thread;
the second slider is also provided with a second through hole penetrating through the second slider along the second direction, and the second through hole is opposite to the first through hole;
the fastening stud is inserted into the second through hole, the other end of the fastening stud is clamped outside the second through hole, the fastening stud penetrates through the second through hole and then is inserted into the first through hole and is meshed with the internal thread through the external thread to be fixed on the first sliding block, and the length of the fastening stud inserted into the first through hole is adjusted through forward rotation and reverse rotation so that the connecting piece is fixed on the sliding block.
Preferably, the connecting piece further comprises a third connecting piece which is spaced from the first connecting piece and the second connecting piece; the second slider still is equipped with the third waist shape hole that runs through on it, third waist shape hole edge the third direction extends and is rectangular shape, third waist shape hole with second waist shape hole interval sets up, the third connecting piece inserts third waist shape hole.
Compared with the prior art, the utility model discloses a projection screen device is fixed in the target object face through connecting the adjustment mechanism installation, fixes projection screen and tightly flattens projection screen for a plane along second direction and third direction respectively through screen fixed establishment. This structure realizes the plane that the projection screen installation is fit for watching, simple structure and easily installation, and the projection screen can curl the packing to make projection screen device light in weight and easily transport. Preferably, the connecting piece of the screen fixing mechanism is fixedly installed in the first waist-shaped hole of the connection adjusting mechanism, so that the screen fixing mechanism and the connection adjusting mechanism form sliding connection for adjusting the displacement of the projection screen along the first direction and the third direction. The structure realizes the adjustability of three-dimensional freedom degree and the whole screen planeness through the connecting piece and the first waist-shaped hole.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic view of a projection screen apparatus according to the present invention in an installed state;
FIG. 2 is a schematic view from another angle of FIG. 1;
FIG. 3 is a schematic diagram of a rolled state of the projection screen apparatus according to the present invention;
fig. 4 is a schematic perspective view of a screen fixing and adjusting device of the screen projection screen apparatus of the present invention;
fig. 5 is a schematic view of a partial three-dimensional structure of a screen fixing mechanism of the screen projection screen device of the present invention;
FIG. 6 is a schematic view of a partial three-dimensional structure of another angle of the screen fixing mechanism of the screen projection screen device of the present invention;
FIG. 7 is a schematic view of a partial three-dimensional structure of a connection adjustment mechanism of a screen projection screen apparatus according to the present invention;
FIG. 8 is a schematic view of a screen projection screen of the present invention being fixed to a screen fixing mechanism;
FIG. 9 is a schematic view of a second embodiment of the screen projection screen of the present invention being fixed to the screen fixing mechanism;
FIG. 10 is a schematic view of a screen projection screen of the present invention being fixed to a screen fixing mechanism;
FIG. 11 is a fourth schematic view of the screen projection screen of the present invention being fixed to the screen fixing mechanism;
fig. 12 is a fifth schematic view of the screen projection screen of the present invention fixed to the screen fixing mechanism;
fig. 13 is a six schematic views illustrating the screen fixing mechanism of the present invention fixing the screen projection screen to the screen fixing mechanism.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a projection screen device 300. The projection screen apparatus 300 includes a projection screen 200 having a rectangular shape and a screen fixing-adjusting apparatus 100.
For better description, the directions of two sides of the plane of the projection screen 200, on which the installation has been completed, are defined as a second direction X and a third direction Y, respectively, while the direction from the projection screen 200 to the object plane (not shown) is the first direction Z, and the second direction X is the direction in which the long side of the projection screen 200 extends; the third direction Y is a direction in which a short side of the projection screen 200 extends. In this embodiment, the first direction Z is perpendicular to the projection screen 200, and the first direction Z, the second direction X and the third direction Y are perpendicular to each other.
The screen fixing and adjusting device 100 includes a screen fixing mechanism 1 and a connection adjusting mechanism 2. The screen fixing mechanism 1 is connected with the connection adjusting mechanism 2. Wherein, the connection adjusting mechanism 2 is used for being installed and fixed on the surface of the target object. The screen fixing mechanism 1 is used to adjust the displacement of the projection screen 200 in one direction.
In this embodiment, the screen fixing mechanisms 1 include four, and the connection adjusting mechanisms 2 include four. The four screen fixing mechanisms 1 are fixed at the positions of the four corners of the projection screen 200, respectively. The four screen fixing mechanisms 1 fix and tension the projection screen 200 to be flat. Wherein, each screen fixing mechanism 1 tensions the projection screen 200 in a direction away from the center of the projection screen 200 along the second direction X and the third direction Y, respectively. This arrangement is advantageous in maintaining the flatness of projection screen 200 and parallel to the ideal viewing plane.
Specifically, the screen fixing mechanism 1 includes an angle clamp 11 abutting against the projection screen 200 and a link 12 extending from the angle clamp 11 in a direction of connecting the adjustment mechanism 2.
The corner clip 11 is used to fix the projection screen 200, and in order to better fix the projection screen 200 to the corner clip 11 and to facilitate assembly, in the present embodiment, the screen fixing mechanism 1 further includes a fastener 13. Specifically, the fastening member 13 passes through the corner clip 11 and abuts against the projection screen 200 to fix the projection screen 200 to the corner clip 11. Wherein the fastening member 13 includes a first fastening member 131 and a second fastening member 132.
The corner clip 11 includes a first corner clip 111 extending along the second direction X and a second corner clip 112 extending along the third direction Y, one end of the first corner clip 111 is perpendicularly connected to one end of the second corner clip 112, and the first corner clip 111 and the second corner clip 112 respectively fix two adjacent sides of one corner of the projection screen 200.
The first corner clip 111 includes a first receiving groove 1111 extending along the second direction X and a first fixing hole 1112 penetrating therethrough. The first fixing hole 1112 is communicated with the first receiving groove 1111. The first fastening member 131 is inserted into the first fixing hole 1112 to form a fixing structure.
The second corner clip 112 includes a second receiving groove 1121 extending in the third direction Y and communicating with the first receiving groove 1111, and a second fixing hole 1122 penetrating therethrough. The second fixing hole 1122 communicates with the second receiving groove 1121. The second fastening member 132 is inserted into the second fixing hole 1122 to form a fixing structure.
One corner of the projection screen 200 is inserted into the first receiving groove 1111 and the second receiving groove 1121, respectively. The first fastening member 131 extends into the first receiving groove 1111 and fixes the projection screen 200 in the first receiving groove 1111. The second fastening member 132 extends into the second receiving slot 1121 and fixes the projection screen 200 in the second receiving slot 1121. The structure adopts a structure of a detachable installation mode, is favorable for reuse adjustment, has a simple structure, is favorable for more firm installation of the projection screen 200, and improves the reliability.
The first fastening member 131 includes a plurality, and the second fastening member 132 includes a plurality. The plurality of first fastening members 131 and the plurality of second fastening members 132 facilitate the projection screen 200 to be more securely mounted, thereby improving reliability.
To better fix the projection screen 200 in the first receiving groove 1111 and the second receiving groove 1121. The first corner clamp 111 further includes a first extruded strip 1113. The end of the first receiving slot 1111 away from the second receiving slot 1121 is defined as a first open end. The first pressing bar 1113 is inserted into the first receiving slot 1111 from the first opening end and abuts against the projection screen 200, and the first fastening member 131 abuts against the first pressing bar 1113 so that the first pressing bar 1113 fixes the projection screen 200. The second corner clip 112 further includes a third extruded strip 1123 defining a second open end at an end of the second receiving slot 1121 remote from the first receiving slot 1111. The third pressing bar 1123 is inserted into the second receiving slot 1121 from the second opening end and abuts against the projection screen 200, and the second fastening member 132 abuts against the third pressing bar 1123 so that the third pressing bar 1123 fixes the projection screen 200.
In this embodiment, the first angle clamp 111 further includes a second pressing strip 1114. The first pressing bar 1113 and the second pressing bar 1114 are used to better fix the projection screen 200 in the first receiving slot 1111. In addition, the second corner clip 112 also includes a fourth extruded strip 1125. The third pressing bar 1123 and the fourth pressing bar 1125 are used to fix the projection screen 200 in the second receiving slot 1121.
In this embodiment, the first fixing holes 1112 include two. The first fastening member 131 includes two. Each of the first fastening members 131 is inserted into a corresponding one of the first fastening holes 1112. The first pressing strip 1113 and the second pressing strip 1114 are respectively inserted into the first receiving slot 1111 from the first opening end and sandwich the projection screen 200. The two first fasteners 131 abut against the first extruded strip 1113 and the second extruded strip 1114 respectively to generate friction force between the first extruded strip 1113 and the second extruded strip 1114 to fix the projection screen 200. This structure is advantageous to the easy operation of installing the projection screen 200, and improves the reliability of fixing the projection screen 200.
In the present embodiment, the second fixing hole 1122 includes two holes. The second fastening member 132 includes two. Each of the second fastening members 132 is inserted into a corresponding one of the second fixing holes 1122. The third extrusion bar 1123 and the fourth extrusion bar 1125 are respectively inserted into the second receiving slot 1121 from the second opening end and sandwich the projection screen 200. The two second fasteners 132 abut against the third extruded strip 1123 and the fourth extruded strip 1125 respectively to generate a friction force between the third extruded strip 1123 and the fourth extruded strip 1125 to fix the projection screen 200. This structure is advantageous to the easy operation of installing the projection screen 200, and improves the reliability of fixing the projection screen 200.
In the present embodiment, the first fastening member 131 is a stud, and the second fastening member 132 is a stud.
In this embodiment, the first receiving groove 1111 and the second receiving groove 1121 are respectively wedge-shaped in the shape perpendicular to the cross section thereof, and the shape of the first pressing strip 1113 and the shape of the second pressing strip 1114 integrated with the first receiving groove 1111 after being inserted into the first receiving groove 1111 are matched with the shape of the first receiving groove 1111; the third extruded strip 1123 and the fourth extruded strip 1125 are inserted into the second receiving slot 1121 to form a whole, and the shape of the whole matches with the shape of the second receiving slot 1121.
Preferably, the screen fixing mechanism 1 further includes a reinforcing plate 113 connected to the first corner clip 111 and the second corner clip 112, respectively. The connecting member 12 is provided to the reinforcing plate 113. The reinforcing plate 113 is disposed on the same side of the first corner clip 111 and the second corner clip 112 along the first direction Z. The projection screen 200 is mounted on the side of the stiffener 113 remote from the connector 12. This arrangement is advantageous in making the outer appearance area of the first and second corner clips 111 and 112 smaller. The structure of the reinforcing plate 113 behind the projection screen 200 is advantageous for improving the strength of the screen fixing mechanism 1 and for mounting the projection screen 200. So that the area of the screen holding mechanism 1 is larger than that of the front structure.
Preferably, the screen fixing and adjusting device 100 has an ultra-narrow side structure. In this embodiment, the width of the screen fixing and adjusting device 100 is less than 10 mm. This configuration maximizes the viewing area of projection screen 200.
The connector 12 includes a first connector 121 and a second connector 122 spaced apart from each other. The connecting member 12 is used for forming a sliding connection with the connection adjusting mechanism 2, so that the screen fixing mechanism 1 and the connection adjusting mechanism 2 form a sliding connection for adjusting the displacement of the projection screen 200 along the first direction Z and the third direction Y.
The operation of installing the projection screen 200 specifically includes: the screen fixing mechanism 1 is disposed at a curtain corner of the projection screen 200, and fixes one long side and adjacent short sides of the projection screen 200. When fixing the curtain of the projection screen 200, a corner of the curtain of the projection screen 200 is inserted into the first corner clip 111 and the second corner clip 112 to make the two sides fit together, that is, the corner of the curtain of the projection screen 200 is inserted into the first receiving slot 1111 and the second receiving slot 1121, respectively. Then, the first extruded strip 1113 and the second extruded strip 1114 are inserted into the first receiving slot 1111 to sandwich the projection screen 200, the third extruded strip 1123 and the fourth extruded strip 1125 are inserted into the second receiving slot 1121 to sandwich the projection screen 200, and the two first fasteners 131 respectively abut against the first extruded strip 1113 and the second extruded strip 1114 to generate a friction force between the first extruded strip 1113 and the second extruded strip 1114 to fix the projection screen 200. The two second fasteners 132 abut against the third extruded strip 1123 and the fourth extruded strip 1125 respectively to generate a friction force between the third extruded strip 1123 and the fourth extruded strip 1125 to fix the projection screen 200.
To illustrate the specific manner in which the screen projection screen 200 is secured to the screen holding mechanism 1, the following description is made in detail by way of six embodiments:
the first embodiment is as follows:
referring to fig. 8, the fastening member 13 fixes the screen projection screen 200 in the first direction Z. Specifically, taking the first corner clip 111 as an example, one corner of the projection screen 200 is inserted into the first receiving slot 1111, and the first fastening member 131 extends into the first receiving slot 1111 along the first direction Z to fix the projection screen 200 in the first receiving slot 1111.
Example two:
referring to fig. 9, two opposite fasteners 13 clamp and fix the screen projection screen 200 along the first direction Z. Specifically, taking the first corner clip 111 as an example, one corner of the screen of the projection screen 200 is inserted into the first receiving slot 1111, and the two opposite first fasteners 131 extend into the first receiving slot 1111 along the first direction Z, respectively, and clamp and fix the projection screen 200 in the first receiving slot 1111.
Example three:
referring to fig. 10, the two fasteners clamp and fix the screen projection screen 200 by two pressing bars. Specifically, taking the first corner clip 111 as an example, a corner of the screen of the projection screen 200 is inserted into the first receiving slot 1111. Then, the first extruded strip 1113 and the second extruded strip 1114 are inserted into the first receiving slot 1111 to clamp the projection screen 200, and the two first fasteners 131 respectively abut against the first extruded strip 1113 and the second extruded strip 1114 to generate a friction force between the first extruded strip 1113 and the second extruded strip 1114 to fix the projection screen 200.
Example four:
referring to fig. 11, the fourth embodiment is basically the same as the third embodiment, and the difference between the fourth embodiment and the third embodiment is: the fourth embodiment has only one first fastener 131 and second extruded strip 1114, and one first extruded strip 1113 is absent. The first fastening member 131 abuts against the second pressing strip 1114 so that the second pressing strip 1114 presses and fixes the projection screen 200 in the first receiving slot 1111.
Example five:
referring to fig. 12, the fifth embodiment is basically the same as the third embodiment, and the fourth embodiment is different from the third embodiment in that: the first corner clip 111 further has two first fastening members 131 and two first fixing holes 1112 extending along the first direction Z, and the two opposite first fastening members 131 respectively extend into the first receiving slot 1111 along the first direction Z and respectively abut against the first pressing strip 1113 and the second pressing strip 1114 to generate friction between the first pressing strip 1113 and the second pressing strip 1114 to fix the projection screen 200. That is, the four first fasteners 131 jointly press the first pressing bar 1113 and the second pressing bar 1114 to fix the projection screen 200.
Example six:
referring to fig. 13, a sixth embodiment is substantially the same as the fourth embodiment, and the sixth embodiment is different from the fourth embodiment in that: the first corner clip 111 further has a first fixing hole 1112 extending along the first direction Z and a first fastening member 131, wherein the first fastening member 131 extends into the first receiving slot 1111 along the first direction Z and abuts against the second pressing strip 1114 to generate a friction force on the second pressing strip 1114 to fix the projection screen 200. That is, the two first fastening members 131 together press the second pressing bar 1114 to fix the projection screen 200.
The connection adjusting mechanism 2 is used for adjusting the displacement of the screen fixing mechanism 1 along the second direction X, so as to adjust the displacement of the projection screen 200 along the second direction X. Specifically, the connection adjusting mechanism 2 includes a fixed block 21 having a slot 210 for being fixed to the target surface, a slider 22 installed in the slot 210 and forming a sliding connection, and a limiting member 23 fixed to the fixed block 21 and extending into the slot 210 along the second direction X. The limiting member 23 is abutted and fixed on one side of the slider 22 close to the center of the projection screen 200 to adjust the displacement of the screen fixing mechanism 1 along the second direction X.
The card slot 210 extends along the second direction X.
The slider 22 slides and is fixed in the card slot 210 in the second direction X to adjust the displacement of the screen fixing mechanism 1 in the second direction X. The connecting member 12 is installed and fixed at the depth of the slider 22 along the first direction Z and the position along the third direction Y to adjust the displacement of the projection screen 200 along the first direction Z and the third direction Y, respectively.
Specifically, the slider 22 includes a first slider 221, a second slider 222 disposed on a side of the first slider 221 away from the center of the projection screen 200, and fastening studs 223 respectively connected to the first slider 221 and the second slider 222.
The first slider 221 is provided with a first kidney-shaped hole 2211 penetrating therethrough. The first waist-shaped hole 2211 extends along the third direction Y and is in a long strip shape. The first connector 121 is inserted into the first waist-shaped hole 2211.
The second slider 222 is provided with a second waist-shaped hole 2221 penetrating through the second slider, and the second waist-shaped hole 2221 extends along the third direction Y and is in a long strip shape. The second connector 122 is inserted into the second waist-shaped hole 2221.
The first slider 221 and the second slider 222 are fixed by a fastening stud 223, and the fastening stud 223 adjusts the distance between the first kidney-shaped hole 2211 and the second kidney-shaped hole 2221 to be smaller than the distance between the first connecting member 121 and the second connecting member 122 so as to fix the connecting member 12 to the slider 22. This arrangement makes it possible to fix the screen fixing mechanism 1 to the connection adjusting mechanism 2 by fixing the first link 121 and the second link 122 by the first slider 221 and the second slider 222 through friction.
How the connecting member 12 and the slider 22 specifically adjust the position of the screen fixing mechanism 1 along the first direction Z, the second direction X and the third direction Y is described below.
(1) Adjusting the position of the screen fixing mechanism 1 in the first direction Z: the depth of the first connector 121 inserted into the first waist-shaped hole 2211 along the first direction Z and the depth of the second connector 122 inserted into the second waist-shaped hole 2221 along the first direction Z are used for adjusting the displacement of the projection screen 200 along the first direction Z. That is, the flatness of the projection screen 200 in the first direction Z by the four screen fixing mechanisms 1 is achieved by adjusting the first and second connectors 121 and 122, so that the projection screen 200 can be adjusted to a plane suitable for viewing, thereby adjusting the body screen flatness.
(2) Adjusting the position of the screen fixing mechanism 1 in the second direction X: the link 12 is connected to the slider 22. Specifically, the first connecting member 121 is inserted into the first waist-shaped hole 2211. The second connector 122 is inserted into the second waist-shaped hole 2221. After the position of the sliding block 22 in the second direction X is determined, and the position-limiting member 23 is abutted and fixed to one side of the sliding block 22 close to the center of the projection screen 200 to adjust the displacement of the screen fixing mechanism 1 in the second direction X. Thereby achieving adjustment and fixing of the position of the screen fixing mechanism 1 in the second direction X. The position of the slider 22 in the second direction X is limited by the limiting member 23, so that the screen fixing mechanism 1 can apply a flat tension to the projection screen 200 in the second direction X.
(3) Adjusting the position of the screen fixing mechanism 1 in the third direction Y: the first waist-shaped hole 2211 extends along the third direction Y and is long-strip-shaped; the second waist-shaped hole 2221 extends along the third direction Y and is long. The position of the first connecting piece 121 inserted into the first waist-shaped hole 2211 along the third direction Y and the position of the second connecting piece 122 inserted into the second waist-shaped hole 2221 along the third direction Y are used to adjust the displacement of the projection screen 200 along the third direction Y, so that the position of the screen fixing mechanism 1 in the third direction Y can be adjusted, and the stretching tension applied to the projection screen 200 in the third direction Y by the screen fixing mechanism 1 can be achieved.
In this embodiment, the connecting member 12 further includes a third connecting member 123 spaced apart from the first connecting member 121 and the second connecting member 122. The second slider 222 is further provided with a third waist-shaped hole 2223 penetrating therethrough. Third waist-shaped hole 2223 extends in third direction Y and is elongated. The third waist-shaped hole 2223 is spaced apart from the second waist-shaped hole 2221, and the third connecting member 123 is inserted into the third waist-shaped hole 2223. The first slot 2211 is arranged on the first slider 221, and the second slot 2221 and the third slot 2223 are arranged on the second slider 222, so that the rotation of the screen fixing mechanism 1 is prevented from being dislocated. Thereby making the installation and assembly of the screen fixing and adjusting device 100 simpler and also improving the reliability. Of course, without being limited thereto, a configuration in which the first slider 221 is provided with two waist-shaped holes and the second slider 222 is provided with one waist-shaped hole is also possible, and it is also possible to achieve prevention of rotational misalignment of the screen fixing mechanism 1. That is, at least one of the first slider 221 and the second slider 222 may be provided with two or more slots. Accordingly, the number of connectors should also match the corresponding slotted holes.
In some embodiments, a plurality of slotted holes of the same slider may also be a slotted hole with a greater length along the third direction Y, and the number of connecting pieces matching with the slotted hole is at least two, so as to prevent the screen fixing mechanism 1 from rotating and dislocating. For example, the first slider 221 is provided with a first waist-shaped hole 2211, the second slider 222 is provided with a second waist-shaped hole 2221, the first connecting member 121 is inserted into the first waist-shaped hole 2211, and the second connecting member 122 and the third connecting member 123 are inserted into the second waist-shaped hole 2221. It should be understood that the number of the waist-shaped holes and the number of the connecting pieces are not limited as long as the screen fixing mechanism is not rotationally dislocated after all the connecting pieces are inserted into the waist-shaped holes.
Preferably, the first slider 221 and the second slider 222 are fixed for better fixing, and the connecting member 12 is fixed to the slider 22. The outer surface of at least one end of the fastening stud 223 is provided with an external thread (not shown).
The first slider 221 further has a first through hole 2212 penetrating therethrough along the second direction X, and an inner wall of the first through hole 2212 is provided with an internal thread (not shown) engaged with the external thread.
The second slider 222 is further provided with a second through hole 2222 penetrating through the second slider in the second direction X, and the second through hole 2222 is opposite to the first through hole 2212.
The fastening stud 223 is inserted into the second through hole 2222, the other end of the fastening stud 223 is clamped outside the second through hole 2222, the fastening stud 223 is inserted into the first through hole 2212 after passing through the second through hole 2222 and is fixed to the first slider 221 by engaging the external thread with the internal thread, and the length of the fastening stud 223 inserted into the first through hole 2212 is adjusted by forward rotation and backward rotation so that the connecting member 12 is fixed to the slider 22.
In this embodiment, the fastening studs 223 include two, the first through holes 2212 include two, the two first through holes 2212 are respectively disposed at two ends of the first slider 221 along the third direction Y, the two second through holes 2222 include two, the two second through holes 2222 are respectively disposed at two ends of the second slider 222 along the third direction Y, and each second through hole 2222 is opposite to the corresponding first through hole 2212. This symmetrical configuration facilitates fastener stud 223 to better secure first slider 221 and second slider 222.
Compared with the prior art, the utility model discloses a projection screen device is fixed in the target object face through connecting the adjustment mechanism installation, fixes projection screen and tightly flattens projection screen for a plane along second direction and third direction respectively through screen fixed establishment. This structure realizes the plane that the projection screen installation is fit for watching, simple structure and easily installation, and the projection screen can curl the packing to make projection screen device light in weight and easily transport. Preferably, the connecting piece of the screen fixing mechanism is fixedly installed in the first waist-shaped hole of the connection adjusting mechanism, so that the screen fixing mechanism and the connection adjusting mechanism form sliding connection for adjusting the displacement of the projection screen along the first direction and the third direction. The structure realizes the adjustability of three-dimensional freedom degree and the whole screen planeness through the connecting piece and the first waist-shaped hole.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (12)
1. A projection screen device is characterized by comprising a projection screen and a screen fixing and adjusting device; the screen fixing and adjusting device comprises a screen fixing mechanism fixed on the projection screen and a connecting and adjusting mechanism connected with the screen fixing mechanism and used for being installed and fixed on a target object surface;
the connection adjusting mechanism is used for adjusting the displacement of the screen fixing mechanism along the second direction so as to adjust the displacement of the projection screen along the second direction, and is provided with a first elongated waist-shaped hole extending along the third direction;
the screen fixing mechanism comprises an angle clamp abutted to the projection screen and a connecting piece extending from the angle clamp to the direction of the connection adjusting mechanism, and the connecting piece is inserted into the first waist-shaped hole to form sliding connection for adjusting the displacement of the projection screen along the first direction and the third direction; the first direction is perpendicular to the projection screen, and the first direction, the second direction and the third direction are mutually perpendicular in pairs.
2. The projection screen device of claim 1, wherein the screen securing mechanism further comprises a fastener that passes through the corner clip and abuts the projection screen and secures the projection screen to the corner clip.
3. The projection screen device of claim 2, wherein the corner clip comprises a first corner clip extending in the second direction and a second corner clip extending in the third direction, one end of the first corner clip being perpendicularly connected to one end of the second corner clip, the first corner clip and the second corner clip respectively securing two adjacent sides of one corner of the projection screen;
the connection adjusting mechanism comprises a fixed block which is provided with a clamping groove and is used for being fixed on the target object surface, and a sliding block which is arranged in the clamping groove and forms sliding connection, the clamping groove extends along the second direction, and the first waist-shaped hole is formed in the sliding block;
the sliding block slides and is fixed in the clamping groove along the second direction so as to adjust the displacement of the screen fixing mechanism along the second direction.
4. The projection screen device of claim 3, wherein the screen securing mechanism further comprises a stiffener plate coupled to the first and second corner clips, respectively, the coupler is disposed on the stiffener plate, the stiffener plate is disposed on a same side of the first and second corner clips along the first direction, and the projection screen is mounted on a side of the stiffener plate away from the coupler.
5. The projection screen device of claim 3, wherein the fastener comprises a first fastener and a second fastener;
the first corner clamp comprises a first accommodating groove extending along the second direction and a first fixing hole penetrating through the first accommodating groove, the first fixing hole is communicated with the first accommodating groove, and the first fastening piece is inserted into the first fixing hole to form a fixing structure;
the second corner clamp comprises a second accommodating groove and a second fixing hole, the second accommodating groove extends along the third direction and is communicated with the first accommodating groove, the second fixing hole penetrates through the second accommodating groove, the second fixing hole is communicated with the second accommodating groove, and the second fastening piece is inserted into the second fixing hole to form a fixing structure;
one corner of the projection screen is inserted into the first accommodating groove and the second accommodating groove respectively, the first fastening piece extends into the first accommodating groove and fixes the projection screen in the first accommodating groove, and the second fastening piece extends into the second accommodating groove and fixes the projection screen in the second accommodating groove.
6. The projection screen device of claim 5, wherein the first fastener comprises a plurality and the second fastener comprises a plurality.
7. The projection screen device of claim 6, wherein the first corner clip further comprises a first squeeze bar, an end of the first receiving slot away from the second receiving slot is defined as a first open end, the first squeeze bar is inserted into the first receiving slot from the first open end and abuts against the projection screen, and the first fastening member abuts against the first squeeze bar so that the first squeeze bar fixes the projection screen;
the second corner clamp further comprises a third extrusion strip, one end, far away from the first containing groove, of the second containing groove is defined as a second opening end, the third extrusion strip is inserted into the second containing groove from the second opening end and abuts against the projection screen, and the second fastener abuts against the third extrusion strip so that the third extrusion strip can fix the projection screen.
8. The projection screen device of claim 7, wherein the first fixing holes include two first fastening members, each of the first fastening members is inserted into a corresponding one of the first fixing holes, the first corner clip further includes a second pressing bar, the first pressing bar and the second pressing bar are respectively inserted into the first receiving groove from the first opening end and clamp the projection screen, and the two first fastening members respectively abut against the first pressing bar and the second pressing bar to generate friction force to fix the projection screen;
the second fixing hole comprises two second fastening pieces, each second fastening piece is inserted into one corresponding second fixing hole, the second corner clamp further comprises a fourth extrusion strip, the third extrusion strip and the fourth extrusion strip are inserted into the second containing groove from the second opening end respectively and clamp the projection screen, and the two second fastening pieces are abutted against the third extrusion strip and the fourth extrusion strip respectively to enable the third extrusion strip and the fourth extrusion strip to generate friction force to fix the projection screen.
9. The projection screen device of claim 3, wherein the connection adjustment mechanism further comprises a limiting member fixed to the fixed block and extending into the slot along the second direction, and the limiting member abuts against and is fixed to one side of the slider near the center of the projection screen to adjust the displacement of the screen fixing mechanism along the second direction.
10. The projection screen device of claim 9, wherein the connector comprises first and second connectors spaced apart from one another;
the sliding block comprises a first sliding block, a second sliding block arranged on one side of the first sliding block far away from the center of the projection screen, and fastening studs respectively connected with the first sliding block and the second sliding block,
the first waist-shaped hole penetrates through the first sliding block, the second sliding block is provided with a second waist-shaped hole penetrating through the second sliding block, the second waist-shaped hole extends along the third direction and is in a long strip shape, the first connecting piece is inserted into the first waist-shaped hole, and the second connecting piece is inserted into the second waist-shaped hole;
the first sliding block and the second sliding block are fixed through the fastening studs, and the fastening studs adjust the distance between the first waist-shaped holes and the second waist-shaped holes and enable the distance to be smaller than the distance between the first connecting piece and the second connecting piece so as to enable the connecting pieces to be fixed on the sliding blocks;
the depth of the first connecting piece inserted into the first waist-shaped hole along the first direction and the depth of the second connecting piece inserted into the second waist-shaped hole along the first direction are used for adjusting the displacement of the projection screen along the first direction;
the first connecting piece is inserted into the position of the first waist-shaped hole along the third direction, and the second connecting piece is inserted into the position of the second waist-shaped hole along the third direction so as to adjust the displacement of the projection screen along the third direction.
11. The projection screen device of claim 10, wherein an outer surface of at least one end of the fastening stud is externally threaded;
the first sliding block is also provided with a first through hole penetrating through the first sliding block along the second direction, and the inner wall of the first through hole is provided with an internal thread matched with the external thread;
the second slider is also provided with a second through hole penetrating through the second slider along the second direction, and the second through hole is opposite to the first through hole;
the fastening stud is inserted into the second through hole, the other end of the fastening stud is clamped outside the second through hole, the fastening stud penetrates through the second through hole and then is inserted into the first through hole and is meshed with the internal thread through the external thread to be fixed on the first sliding block, and the length of the fastening stud inserted into the first through hole is adjusted through forward rotation and reverse rotation so that the connecting piece is fixed on the sliding block.
12. The projection screen device of claim 10, wherein the connector further comprises a third connector spaced from the first connector and the second connector; the second slider still is equipped with the third waist shape hole that runs through on it, third waist shape hole edge the third direction extends and is rectangular shape, third waist shape hole with second waist shape hole interval sets up, the third connecting piece inserts third waist shape hole.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020165085.XU CN211956104U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
| CN202022258046.7U CN213457636U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
| PCT/CN2020/142114 WO2021159887A1 (en) | 2020-02-12 | 2020-12-31 | Projection screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020165085.XU CN211956104U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022258046.7U Division CN213457636U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
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| Publication Number | Publication Date |
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| CN211956104U true CN211956104U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022258046.7U Active CN213457636U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
| CN202020165085.XU Active CN211956104U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022258046.7U Active CN213457636U (en) | 2020-02-12 | 2020-02-12 | Projection screen device |
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| CN (2) | CN213457636U (en) |
| WO (1) | WO2021159887A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010102677A (en) * | 2000-05-04 | 2001-11-16 | 김판수 | Appratus for unfolding and rolling the back screen |
| CN202195242U (en) * | 2011-08-17 | 2012-04-18 | 合肥未来计算机技术开发有限公司 | Support adjusting device for large screen installation |
| CN102829301A (en) * | 2012-08-20 | 2012-12-19 | 广东威创视讯科技股份有限公司 | Supporting and adjusting mechanism for soft screen |
| CN203595889U (en) * | 2013-12-06 | 2014-05-14 | 深圳市真屏科技发展有限公司 | Installation device preventing projection screen against deformation caused by heat-expansion and cold-contraction |
| CN203759412U (en) * | 2014-03-24 | 2014-08-06 | 深圳市真屏科技发展有限公司 | Installing apparatus preventing projection screen from being deformed due to expansion with and contraction with cold |
| CN207750698U (en) * | 2017-10-23 | 2018-08-21 | 青岛海信电器股份有限公司 | A kind of wall hanging rack of projection screen |
| CN109752910B (en) * | 2017-11-03 | 2021-06-08 | 深圳光峰科技股份有限公司 | Fixing device, projection screen and projection equipment |
-
2020
- 2020-02-12 CN CN202022258046.7U patent/CN213457636U/en active Active
- 2020-02-12 CN CN202020165085.XU patent/CN211956104U/en active Active
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| CN213457636U (en) | 2021-06-15 |
| WO2021159887A1 (en) | 2021-08-19 |
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