CN212160333U - Projection screen structure - Google Patents
Projection screen structure Download PDFInfo
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- CN212160333U CN212160333U CN202020179788.8U CN202020179788U CN212160333U CN 212160333 U CN212160333 U CN 212160333U CN 202020179788 U CN202020179788 U CN 202020179788U CN 212160333 U CN212160333 U CN 212160333U
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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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- Overhead Projectors And Projection Screens (AREA)
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Abstract
The utility model provides a projection screen structure, which comprises a projection screen, an upper frame and an installation connecting part; the projection screen is fixedly arranged on a preset mounting plane through a mounting connecting piece; the upper frame comprises a first mounting surface and a second mounting surface arranged opposite to the first mounting surface, wherein the first mounting surface is used for being mounted in a matched manner with the upper edge of the projection screen, and the second mounting surface is bent backwards to form a mounting groove; the mounting and connecting piece comprises a fixing part, a supporting part and a connecting part for connecting the fixing part and the supporting part, the fixing part is fixedly mounted at a preset mounting position of a mounting plane, and the supporting part and a second mounting surface of the upper frame are bent to form a mounting groove in a limiting and clamping manner for mounting. The utility model discloses a reach the purpose of simplifying the installation procedure with the slot of frame and the spacing installation of the supporting part of fixing at mounting surface's erection joint spare, projection screen can rely on the top frame to curl simultaneously, realizes projection screen's convenient transportation.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a projection display equipment field especially relates to a projection screen structure convenient to installation, transportation and can keep good roughness.
[ background of the invention ]
Projection screens are one of the most common products in peripheral devices of projection display devices, and are widely used in theaters, schools, homes, large conferences, and the like.
Projection screens currently on the market typically include both soft and hard screens. At present, the ultra-short-focus fresnel light-resistant projection screen with the size of 100 inches or more is used, and generally a high-hardness back plate is used for providing support, and the screen needs to be fixed by adopting assembly processes such as bonding and the like. Such a screen structure can ensure the flatness of the screen to ensure the viewing effect of high-quality projection display, but the conventional rear panel mounting structure may tilt the screen when the fixed mounting plane is not flat or tilted. 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 curtain generally provides uniform tension through the surrounding frame or the side elastic pieces when being unfolded, and the soft curtain has the advantages of being capable of being rolled up and stored and convenient to transport, but the soft curtain is not smooth enough after being unfolded and is easy to wrinkle, so that the watching effect of a user is influenced.
Therefore, there is a need to provide a new projection screen structure to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a projection screen structure can solve the transportation difficulty that traditional backplate screen structure brought, the complicated problem of installation procedure, can also keep good roughness, guarantees that the user watches the effect.
In order to achieve the above object, the present invention provides a projection screen structure, which includes a projection screen, an upper frame and a mounting connector, wherein the projection screen is fixedly mounted on a predetermined mounting plane through the mounting connector; the upper frame comprises a first mounting surface and a second mounting surface arranged opposite to the first mounting surface, wherein the first mounting surface is used for being mounted with the upper edge of the projection screen in a matched mode, and the second mounting surface is bent backwards to form a mounting groove; the mounting and connecting piece comprises a fixing part, a supporting part and a connecting part for connecting the fixing part and the supporting part, the fixing part is fixedly mounted at a preset mounting position on a mounting plane, and the supporting part and the upper frame are mounted in a limiting and clamping manner in a mounting groove formed by bending the second mounting surface.
Preferably, the projection screen comprises a screen body and a cross bar fixed on the upper edge of the screen.
Preferably, the projection screen body and the cross rod can be fixedly connected in a mode that one end of cloth is reversely wrapped on the cross rod, and the other end of the cloth is adhered to the screen body.
Preferably, the projection screen body can be fixedly connected with the cross bar by means of direct gluing.
Preferably, the first mounting surface of the upper frame is bent forwards to form an accommodating cavity, and the accommodating cavity is connected with a transverse rod fixed on the upper edge of the screen in a limiting and installing manner.
Preferably, the mounting connector is a first mounting connector.
Preferably, the first mounting connector is a support device.
Preferably, the first mounting link is a flatness adjustment device that can adjust a displacement of the flatness adjustment device in a direction perpendicular to a mounting plane with respect to an initial fixing position.
Preferably, the first mounting connector can be one or more, and is fixed at a preset mounting position of the mounting plane. Meanwhile, the first installation connecting pieces fixedly installed at the installation position points may be the same first installation connecting pieces, or may be a combination of different first installation connecting pieces.
Preferably, the projection screen structure further includes a lower frame, and the lower frame has a symmetrical structure with the upper frame.
Preferably, the mounting connector is a second mounting connector.
Preferably, the second mounting connector may be a support device.
Preferably, the second mounting attachment may be a flatness adjustment means, which can adjust the displacement of the flatness adjustment means relative to the initial fixing position in a direction perpendicular to the mounting plane.
Preferably, the second mounting connection may be a tensioning device, which may adjust the displacement of the tensioning device relative to the initial fixing position in a direction parallel to the mounting plane.
Preferably, the second mounting connector is a flatness and tension adjustment device, the height of the flatness and tension adjustment device in the direction perpendicular to the mounting plane can be adjusted, and the displacement of the flatness and tension adjustment device relative to the initial fixing position in the direction parallel to the mounting plane can also be adjusted.
Preferably, the number of the second mounting connectors can be one or more, and the second mounting connectors are fixed at preset mounting positions of a mounting plane; the second installation connecting pieces fixedly installed at the installation position points can be the same second installation connecting pieces or the combination of different second installation connecting pieces, wherein the installation number of the tension adjusting devices must be an even number, and the installation positions of the tension adjusting devices are symmetrically distributed in the horizontal direction.
Preferably, the number of the second mounting connectors is four, and the second mounting connectors are fixed at four preset mounting positions on a mounting plane, and the four mounting positions are horizontally distributed in the transverse direction and vertically distributed in the longitudinal direction.
More preferably, the four mounting positions are 0.8-1.5 m apart.
Preferably, the installation connecting pieces fixedly installed at the installation position point may be the same installation connecting piece, or may be a combination of different installation connecting pieces.
Preferably, the projection screen structure further comprises a left frame and a right frame, and more preferably, the left frame and the right frame are the same as the upper frame and the lower frame in width and material, and the left frame and the right frame are not directly connected.
Preferably, the connection part of the left frame, the right frame and the upper frame and the lower frame is installed in an interference fit mode through a blank cap.
Compared with the prior art, the utility model discloses a projection screen structure includes projection screen, upper frame and erection joint spare, and projection screen passes through erection joint spare fixed mounting is on predetermined mounting plane, and the upper frame includes first installation face and the second installation face that sets up opposite to first installation face, and wherein first installation face is used for with the cooperation of the last border of projection screen is installed, and the second installation face is buckled backward and is formed the installation slot; the mounting and connecting piece comprises a fixing part, a supporting part and a connecting part for connecting the fixing part and the supporting part, the fixing part is fixedly mounted at a preset mounting position of a mounting plane, and the supporting part and a second mounting surface of the upper frame are bent to form a mounting groove in a limiting and clamping manner for mounting. In the structure, the purpose of simplifying the installation steps is achieved by limiting and installing the groove of the frame and the supporting part fixed on the installation connecting part on the installation plane, and meanwhile, the projection screen can be curled by depending on the upper frame, so that the projection screen is convenient to transport.
[ 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 front view of a projection screen structure according to the present invention;
fig. 2 is a side view of a projection screen structure according to the present invention;
fig. 3 is an installation diagram of a projection screen structure according to the present invention;
fig. 4 is a schematic view of the fixing structure of the projection screen body and the cross bar of the present invention;
FIG. 5 is a side view of the upper frame structure of the present invention;
FIG. 6 is a schematic structural diagram of a first mounting connector of the projection screen structure of the present invention;
FIG. 7 is a schematic structural diagram of another first mounting connector of the projection screen structure of the present invention;
FIG. 8 is a side view of another projection structure of the present invention
FIG. 9 is a schematic structural diagram of a second mounting connector of the projection screen structure of the present invention;
FIG. 10 is a schematic structural diagram of another second mounting connector of the projection screen structure of the present invention;
FIG. 11 is a schematic view of the installation and positioning of the installation and connection member of the projection screen structure of the present invention;
fig. 12 is an installation schematic view of the longitudinal tension adjusting mechanism of the projection screen structure of the present invention;
fig. 13 is a front view of another projection configuration of the present invention;
fig. 14 is a schematic view illustrating the assembly of the peripheral frame corner of the projection structure of the present invention;
fig. 15 is a schematic view of the projected structure of the present invention of a rolled package;
[ 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.
The utility model discloses a projection screen structure includes projection screen, upper frame and erection joint spare, projection screen passes through erection joint spare fixed mounting is on predetermined mounting plane, the upper frame includes first installation face and the second installation face that sets up opposite to first installation face mutually, wherein first installation face be used for with projection screen's top edge cooperation installation, the second installation face is buckled backward and is formed the installation slot; the mounting and connecting piece comprises a fixing part, a supporting part and a connecting part for connecting the fixing part and the supporting part, the fixing part is fixedly mounted at a preset mounting position of a mounting plane, and the supporting part and a second mounting surface of the upper frame are bent to form a mounting groove in a limiting and clamping manner for mounting.
Referring to fig. 1-2, a projection screen structure 100 according to an embodiment of the present invention includes a projection screen 110, an upper frame 120, and a first mounting connector 130, wherein the projection screen 110 is fixedly mounted on a predetermined mounting plane through the first mounting connector 130.
The upper frame 120 has a first mounting surface 121 (reference numeral given in the figure) for mating connection with the projection screen 110 and a second mounting surface 122 (reference numeral given in the figure) opposite to the first mounting surface 121.
In the present invention, the first mounting surface 121 is used for cooperating with the projection screen 110 to provide a lateral tension to the projection screen 110. Specifically, in this embodiment: the physical form of the first mounting surface 121 may be a plane as shown in fig. 2, which may be fixedly engaged with the upper edge of the projection screen 110 by direct gluing or the like to provide a lateral tension to the projection screen 110; the physical form of the first mounting surface 121 may also be a receiving cavity as shown in fig. 3, which may be fixedly engaged with the upper edge of the projection screen 110 by a snap-fit manner, so as to provide a lateral tension to the projection screen 110.
It is understood that the first mounting surface 121 is not detachably connected to the projection screen 110 in a manner of directly attaching to the projection screen 110, and for convenience of detachment, it is preferable that the first mounting surface 121 adopts a receiving cavity structure to fixedly mate with the upper edge of the projection screen 110.
It can be understood that, in the present invention, the physical form of the first mounting surface 121 is not limited to the two methods listed above, the physical form of the first mounting surface 121 can be designed according to different product design requirements, and the structural design that can provide the projection screen 110 with the transverse tension can be applied to the present invention as the first mounting surface 121.
Referring to fig. 3, in order to enable the upper edge of the projection screen 110 and the accommodating cavity to be mounted in a limited manner, the projection screen 110 of the present embodiment includes a screen body 111 and a cross bar 112; the cross bar 112 is fixedly connected with the upper edge of the screen body 111, so that certain transverse tension is ensured, and the screen is kept flat in the transverse direction; fig. 4 schematically illustrates a fixing manner of the screen 111 and the cross bar 112, wherein fig. 4(a) adopts a fixing manner of a reverse wrapping of cloth 113, the screen 111 is adhered to one end of the cloth 113, the cloth 113 is reversely folded to form a hollow accommodating space, and the screen cross bar 112 is placed in the hollow accommodating space formed by the cloth 113 in a penetrating manner, so that a load in a longitudinal direction of the screen can be effectively borne; fig. 4(b) and 4(c) illustrate a fixing manner of directly gluing the screen 111 and the cross bar 112, wherein the cross bar 112 in fig. 4(b) includes a head portion 1121 and an extended tail portion 1122 connected to the head portion, and the tail portion 1122 is glued to the screen 111, so as to increase the contact area between the cross bar 112 and the screen 113; the cross bar 112 in fig. 4(c) is an integral structure, one side of the cross bar 112 is connected with the screen 111 by gluing, a transverse tension is applied to the screen 111 in advance during the gluing process, and the screen 111 can maintain the effective transverse tension after the gluing and fixing. Preferably, the material of the cross bar 112 is rigid plastic or metal.
It should be noted that, in this embodiment, the fixing manner of the upper edge of the screen and the cross bar 112 may be selected from any one of the three fixing manners, but is not limited thereto.
Referring to fig. 5 again, the first mounting surface 121 and the second mounting surface 122 of the upper frame 120 are disposed opposite to each other, so that the upper frame 120 is substantially in a "T" shape. The first mounting surface 121 is bent forwards to form a through accommodating cavity 123, and the first mounting surface and the upper edge of the projection screen 111 are mounted in a limiting manner through a cross bar 112 fixedly connected with the first mounting surface; the second mounting surface 122 is bent backwards to form a mounting groove 124, and the mounting groove 124 is used for being clamped with a first mounting connector 130 fixed on the mounting plane in advance, so as to realize the mounting and fixing of the screen structure 100 of the embodiment.
Preferably, the upper frame 120 has a better bending strength due to its supporting and tensioning function for the projection screen 110, and further, the upper frame 120 may be made of a metal material with a lower density in consideration of the ease of installation, transportation and operation.
Referring to fig. 6, the first mounting connector 130 includes a supporting portion 131 and a fixing portion 132, the supporting portion 131 and the fixing portion 132 are connected in a bending manner, wherein the supporting portion 131 is used for implementing coordination clamping installation with the frame groove 124; the fixing portion 132 includes two through fixing holes 1321 and 1322, and the fixing portion 132 is fixed to a predetermined installation position of the installation plane by two fasteners (not shown) passing through the through fixing holes 1321 and 1322. It should be noted that, the number of the first installation connecting pieces 130 is not limited, the positions of the first installation connecting pieces 130 and the number of the used first installation connecting pieces 130 are preset according to the size of the projection screen and the position of the projection screen away from the projector, the corresponding number of first installation connecting pieces 130 are installed at the installation positions of the installation planes of the preset certain number, and the fixed support of the projection screen 110 is realized by the coordination clamping installation of the supporting parts 131 of the plurality of first installation connecting pieces 130 and the upper frame groove 124. In the present invention, when the projection screen structure 100 is engaged with the ultra-short focus projector, the optimum vertical distance between the opening position of the first installation connection member 130 of the projection screen structure 100 and the projector is H1Therefore, the screen mounting position needs to be accurately preset in advance and the screen is kept horizontal. Preferably, two points spaced apart from each other in the horizontal direction are selected as the predetermined mounting positions of the first mounting connectors 130, and further, the interval between the two horizontally arranged first mounting connectors 130 is 0.8 to 1.5 m.
Preferably, in order to maintain the aesthetic appearance of the front view screen, the mounting position of the first mounting connector 130 needs to ensure that the entire structure of the first mounting connector 130 is completely hidden behind the projection screen 110.
It should be noted that, the fixing portion 132 of the first mounting connector 130 of the present embodiment is fixed on the mounting plane through a fastener, the frame groove 124 on the screen is installed in coordination and suspension with the supporting portion 131 of the first mounting connector 130, the first mounting connector 130 can only achieve the fixing and supporting function for the projection screen 110, when the mounting plane is uneven, the first mounting connector 130 of the present embodiment cannot adaptively adjust the height of the mounting position according to the uneven condition of the mounting plane to ensure the flatness of the screen 110, that is, the first mounting connector 130 of the present embodiment is suitable for the case when the mounting plane of the mounting screen is even.
To the uneven condition of the installation plane, the utility model provides another embodiment of the first installation connecting piece of projection screen structure, its structure is seen in fig. 7, fig. 7(a) is the schematic structural diagram of the first installation connecting piece 140 of this embodiment, the first installation connecting piece 140 of this embodiment includes supporting part 141 and fixed part 142, and supporting part 141 and fixed part 142 pass through threaded connection. The first mounting connector 140 is fixedly mounted on the mounting plane by a fixing portion 142 thereof through a fastener (not shown), the supporting portion 141 of the first mounting connector 140 is used for realizing coordination and clamping mounting with the frame groove 124, the height of the supporting portion 141 relative to the fixing portion 142 in the direction perpendicular to the mounting plane can be adjusted through the screw connection rotation design between the supporting portion 141 and the fixing portion 142, that is, the supporting portion 141 can be far away from or close to the mounting plane mounting position in the direction perpendicular to the mounting plane by rotating the screw thread between the supporting portion 141 and the fixing portion 142, and based on this structure, the first mounting connector 140 of the present embodiment can perform corresponding flatness adjustment according to the concave-convex condition of the mounting wall surface.
It should be noted that the number of the first installation connecting pieces 140 is not limited, the position of fixing the first installation connecting pieces 140 and the number of the used first installation connecting pieces 140 are preset according to the size of the projection screen and the position of the projection screen away from the projector, the corresponding number of first installation connecting pieces 140 are installed at the installation positions of the installation planes of the preset certain number, and the fixed support of the projection screen 110 is realized by the coordination clamping installation of the supporting parts 141 of the plurality of first installation connecting pieces 140 and the upper frame groove 124.
Preferably, different first mounting connectors may be selected and used for the concave-convex condition of different mounting positions of the mounting plane, the first mounting connector 140 in the present embodiment may be selected and used for the mounting position with concave-convex unevenness, and the first mounting connector 140 in the present embodiment or the first mounting connector 130 in the previous embodiment may be selected and used for the mounting position with flat mounting plane, that is, the combination of the first mounting connectors is not limited, the same first mounting connector may be selected and used, or the combination of different first mounting connectors may be selected and used.
Maintaining the flatness of the projection screen 110 requires uniform projection screen tension, which is divided into lateral tension and longitudinal tension, the lateral tension is currently provided by the tension fixation of the cross bar 112 and the upper frame 120, and the longitudinal tension is provided only by the gravity of the projection screen 110 itself, and further, in order to maintain the flatness of the projection screen 110 when unfolded, as a more preferred embodiment, the projection screen structure 200 further includes a lower frame 250, see fig. 8. Preferably, the lower frame 250 and the upper frame 220 have a symmetrical design structure, the first installation plane of the lower frame 250 is also bent forwards to form an accommodation cavity, and the accommodation cavity is limited and installed with a cross bar fixed at the lower edge of the projection screen 210, so as to further ensure the transverse flatness of the projection screen 210, and meanwhile, a corresponding number of second installation connecting pieces 230 are installed at a predetermined number of installation plane installation positions according to the size of the projection screen 210 and the distance between the projection screen 210 and the projector, wherein the second installation connecting pieces 230 comprise second installation connecting pieces 231 for the upper frame 220 and second installation connecting pieces 232 for the lower frame 250, wherein the support parts of the second installation connecting pieces 231 for the upper frame 220 are clamped and installed with the upper frame groove to realize the fixed support of the projection screen 210, and the support parts of the second installation connecting pieces 232 for the lower frame are clamped and installed with the lower frame groove to realize the further fixation of the screen, while providing for retention of longitudinal tension.
Further, the lower frame 250 may be added with a weight member to provide a stronger longitudinal tension to the projection screen 210.
Similarly, the number of the second installation connectors 230 is not limited, the position of fixing the second installation connectors 230 and the number of the used second installation connectors 230 are preset according to the size of the projection screen 210 and the position of the projection screen 210 from the projector, the corresponding number of second installation connectors 230 are installed at the installation positions of the installation planes of the preset certain number, and the fixed support of the screen 210 is realized by the coordination clamping installation of the support parts of the plurality of second installation connectors 230 and the upper frame groove or the lower frame groove. Meanwhile, the combination of the second mounting connectors 230 is not limited to the difference of the concave-convex condition of the mounting plane, and the same second mounting connectors 230 may be selected and used, or different combinations of the second mounting connectors 230 may be selected and used. Preferably, the second mounting connector 231 for the upper frame 220 and the second connector 232 for the lower frame 250 may share the same structure, but have different mounting orientations, so that the types of parts are reduced, and the mounting difficulty is reduced.
Preferably, when the installation plane is flat, the second installation connecting member 230 is selected to be a supporting device having the same structure as the first installation connecting member 130. For the case of uneven mounting plane, the second mounting connector 230 may be a flatness adjusting device having the same structure as the first mounting connector 140, and the specific structure and the adjusting principle are the same as those of the foregoing embodiments, and will not be described herein again.
When the installation plane is uneven, the flatness of the installed projection screen 210 is affected, and the heights of the left side and the right side of the screen 210 are inconsistent, so that the screen 210 is not perpendicular to the main sight direction, the installation and positioning requirements for the second installation connecting piece 230 are very accurate, and great inconvenience is brought to installation and operation. Therefore, in order to better adapt to different mounting plane conditions, the utility model provides a can realize carrying out the second erection joint 260 that adjusts to the longitudinal tension that screen 210 applyed, can provide the longitudinal tension of adaptability according to the position difference of the screen frame of connection and adjust. Referring to fig. 9, the second mounting connector 260 for adjusting longitudinal tension includes a supporting portion 261 and a fixing portion 262, the supporting portion 261 and the fixing portion 262 are elastically connected to each other, the fixing portion 262 includes two fixing holes 2621 and 2622, the fixing portion 262 is fixed to a predetermined mounting position of a mounting plane by two fasteners (not shown) passing through the fixing holes 2621 and 2622, and the bezel mounting groove and the supporting portion 261 are limitedly mounted while applying pressure to the supporting portion 261 by the elastic connection portion 263, so as to provide adjustable longitudinal pressure to the screen. That is, the supporting portion 261 of the second mounting connector 260 is used for realizing coordination clamping mounting with the upper frame groove or the lower frame groove, the height of the supporting portion 261 relative to the fixing portion 262 in the direction parallel to the mounting plane can be adjusted through the design of the elastic connection between the supporting portion 261 and the fixing portion 2622, that is, the supporting portion 261 can be far away from or close to the mounting plane mounting position in the direction parallel to the mounting plane through the elastic connection between the supporting portion 261 and the fixing portion 262.
The number of the second installation connecting members 260 which can be used for adjusting the longitudinal tension applied to the screen determines the upper and lower support tension of the screen, each second installation connecting member 260 provides an elastic force of 10-100N, preferably, the combination of the second installation connecting members 230 is not limited according to different application situations, the same second installation connecting member 230 can be selected to be used in the upper frame 220 or the lower frame 250, or different combinations of the second installation connecting members 230 can be selected to be used, it should be noted that the number of the second installation connecting members 260 which are selected to be used must be an even number and be symmetrically distributed in the horizontal direction.
For example, when the installation plane is uneven and the screen tension needs to be adjusted at the same time, the present invention provides a combination of the second installation connection member 230 capable of adjusting the flatness and the second installation connection member 260 capable of adjusting the longitudinal tension to maintain the effective and proper flatness of the screen, and it is worth mentioning that, the elastic connection portion 263 of the second mounting connection member 260 for adjusting longitudinal tension exerts a certain elastic force on the clamped frame through the support portion 261, and the frame can therefore move in the longitudinal direction, and if the frame is combined with the second mounting connection member 230 for adjusting flatness or/and the second mounting connection member 230 for supporting to adjust the support of the screen, it is ensured that the frame cannot leave the support stressed surface of the second mounting connection member 230 for adjusting flatness or the second mounting connection member 230 for supporting due to the movement of the frame caused by the second mounting connection member 260 for adjusting tension.
In order to reduce the implementation difficulty, the utility model provides a projection screen structure 200's another embodiment of second erection joint spare can adjust roughness and tension simultaneously, and the structure is seen in fig. 10, and second erection joint spare 270 of this embodiment includes supporting part 271 and fixed part 272, realizes connecting through adjustment mechanism 273 between supporting part 271 and the fixed part 272, and adjustment mechanism 273 includes adjusting screw 2731, adjusting block 2732 and adjusts slide-shaft 2733. The second mounting connector 270 is fixedly mounted on the mounting plane by a fastener (not shown) with its fixing portion 272 as much as possible to keep the second mounting connector 270 aligned in the horizontal and vertical directions, the supporting portion 271 of the second mounting connector 270 includes a supporting element 2711, a fixing base plate 2712 and a nut 2713, the supporting element 2711 is used for coordinate clamping mounting with the bezel groove, the base plate 2712 is fixedly connected with the adjusting slider 2732 on the adjusting mechanism 273, and changing the distance between the supporting element 2711 and the fixing base plate 2712 in the direction perpendicular to the mounting plane can be realized by rotating the nut 2713. Through the rotation adjusting screw 2731, because the adjusting screw 2731 meets with the adjusting slider 2732 screw thread, change the up-and-down slip that the supporting part 271 can be driven to the adjusting slider 2732 position, nut 2713 and adjusting slider 2732 swivelling joint simultaneously, the change of adjusting slider 2732 position and then drive the rotation of nut 2713, thereby make supporting component 2711 be close to or keep away from fixed base plate 2712 on the perpendicular to mounting plane direction, supporting component 2711 is the back-and-forth movement on the direction of perpendicular to mounting plane promptly. The present embodiment can simultaneously achieve the adjustment of the flatness of the screen 210 and the longitudinal tension applied to the screen 210 by one adjusting mechanism 273 of the second mounting link 270, and has few mounting parts and simple implementation operation.
The mounting position and the installation number of second erection joint spare 230 have decided the screen 210 and have supported tension from top to bottom the utility model discloses in, when projection curtain and super short-focus projector cooperate, the best vertical distance of trompil position distance projector of second erection joint spare 230 of projection screen structure 200 is H1Therefore, the screen mounting position needs to be accurately preset in advance and the screen 210 needs to be kept horizontal. Preferably, the installation position preselects four-point positioningReferring to fig. 11, the four-point mounting positions are horizontal and vertical, so that the mounting parts are reduced to the greatest extent and the mounting difficulty is reduced on the premise that the flatness of the screen 210 can be maintained after the screen 210 is stably mounted.
Referring to fig. 12, on the premise that the flatness of the screen 210 is ensured by using a four-point positioning installation fixing connection piece, the maintenance of longitudinal tension can also be provided by adding a longitudinal tension adjusting mechanism 280 fixed at any position of the installation plane, wherein the longitudinal tension adjusting mechanism 280 is elastically connected with the upper frame 220 and the lower frame 250. Preferably, the longitudinal tension adjusting mechanism 280 is installed at a position such that the whole longitudinal tension adjusting mechanism is hidden at any position behind the screen 210, and may be installed at both the upper and lower frames or at one side, and the number of the longitudinal tension adjusting mechanisms 280 used at the same time may be one or more, which is not limited thereto.
In order to keep the aesthetic property of the projection screen of openly watching, the reinforcing user's experience of watching, it is preferred, the utility model discloses projection screen structure 300 still can include left frame 360 and right frame 370, see fig. 13, it is further, it is unanimous to control the frame structure, it is more excellent, control the frame and can design for the same width with last lower frame, the narrow frame of same material, frame has not only improved projection screen's aesthetic property about increasing, because the installation of frame about projection screen embedding, to the projection screen of marginal unevenness, can keep its corner level and smooth, the effect of improving the whole roughness of screen has been played. It should be noted that, in this embodiment, the left and right frames and the upper and lower frames are not directly connected, so as to facilitate the discrete packaging and compact transportation.
Further, in consideration of the installation accuracy and the effect of expansion with heat and contraction with cold, the four corners of the peripheral frame of the projection screen of the embodiment are installed in an interference fit manner by using the blank caps 380 and the cross bars 312 fixed on the upper edge of the screen, and the schematic view of the installation structure is as shown in fig. 14.
The utility model provides a projection screen structure is through when packing the transportation, can rely on the top frame and or the lower frame curls, and the schematic diagram that curls is shown as figure 15, and left and right sides frame, erection joint spare and other part length are shorter, during the packing put the screen after curling hollow region can, reduce the transportation volume, reduce cost of transportation.
Compared with the prior art, the utility model discloses a projection screen structure includes projection screen, upper frame and erection joint spare, and projection screen passes through erection joint spare fixed mounting is on predetermined mounting plane, and the upper frame includes first installation face and the second installation face that sets up opposite to first installation face, and wherein first installation face is used for with the cooperation of the last border of projection screen is installed, and the second installation face is buckled backward and is formed the installation slot; the mounting and connecting piece comprises a fixing part, a supporting part and a connecting part for connecting the fixing part and the supporting part, the fixing part is fixedly mounted at a preset mounting position of a mounting plane, and the supporting part and a second mounting surface of the upper frame are bent to form a mounting groove in a limiting and clamping manner for mounting. In the structure, the purpose of simplifying the installation steps is achieved by limiting and installing the groove of the frame and the supporting part fixed on the installation connecting part on the installation plane, and meanwhile, the projection screen can be curled by depending on the upper frame, so that the projection screen is convenient to transport.
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 structure is characterized in that the projection screen structure comprises a projection screen, an upper frame and an installation connecting piece,
the projection screen is fixedly arranged on a preset mounting plane through the mounting connecting piece;
the upper frame comprises a first mounting surface and a second mounting surface arranged opposite to the first mounting surface, wherein the first mounting surface is used for being mounted with the upper edge of the projection screen in a matched mode, and the second mounting surface is bent backwards to form a mounting groove;
the mounting and connecting piece comprises a fixing part, a supporting part and a connecting part for connecting the fixing part and the supporting part, the fixing part is fixedly mounted at a preset mounting position on a mounting plane, and the supporting part and the upper frame are mounted in a limiting and clamping manner in a mounting groove formed by bending the second mounting surface.
2. The projection screen structure of claim 1, wherein the projection screen includes a screen body and a rail secured to an upper edge of the screen.
3. The projection screen structure of claim 2, wherein the fixed connection of the projection screen body and the cross bar is achieved by way of one end of cloth wrapping the cross bar in a reverse manner, and the other end of cloth being glued to the screen body;
or the projection screen body is fixedly connected with the cross rod in a direct gluing mode.
4. The projection screen structure of claim 2, wherein the first mounting surface is bent forward to form a receiving cavity, and the receiving cavity is connected with the cross bar in a limiting manner.
5. The projection screen structure of claim 1, wherein the mounting connection is a first mounting connection.
6. The projection screen structure of claim 5, wherein:
the first mounting connecting piece is a supporting device;
or the first mounting connecting piece is a flatness adjusting device which can adjust the displacement of the flatness adjusting device relative to the initial fixed position in the direction vertical to the mounting plane;
the first installation connecting pieces can be one or more, and are fixed at preset installation positions of an installation plane, and meanwhile, the first installation connecting pieces fixedly installed at the installation positions are the same first installation connecting pieces or different first installation connecting pieces.
7. The projection screen structure of claim 1, further comprising a lower border having a symmetrical configuration with respect to the upper border.
8. The projection screen structure of claim 7, wherein the mounting connection is a second mounting connection.
9. The projection screen structure of claim 8, wherein the second mounting connection is a support device;
or the second mounting connecting piece is a flatness adjusting device which can adjust the displacement of the flatness adjusting device relative to the initial fixed position in the direction vertical to the mounting plane;
or the second mounting connecting piece is a tension adjusting device which can adjust the displacement of the tension adjusting device relative to the initial fixed position in the direction parallel to the mounting plane;
or the second mounting connecting piece is a flatness and tension adjusting device, the height of the flatness and tension adjusting device in the direction perpendicular to the mounting plane can be adjusted, and the displacement of the flatness and tension adjusting device relative to the initial fixing position in the direction parallel to the mounting plane can also be adjusted;
the second installation connecting pieces are one or more and fixed at preset installation positions of an installation plane, the second installation connecting pieces are fixedly installed at the installation positions and are the same or different combinations of the second installation connecting pieces, the installation number of the second installation connecting pieces is even, and the installation positions of the second installation connecting pieces are symmetrically distributed in the horizontal direction.
10. The projection screen structure of claim 9, wherein the second mounting connectors are four and are fixed to the mounting plane at four predetermined mounting locations, and the four mounting locations are horizontally distributed in a lateral direction and vertically distributed in a longitudinal direction.
11. The projection screen structure of claim 7, further comprising a left border and a right border, the left border and the right border not being directly connected.
12. The projection screen structure of claim 11, wherein the left and right frames and the upper and lower frames are attached by interference fit using a blank cap.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179788.8U CN212160333U (en) | 2020-02-18 | 2020-02-18 | Projection screen structure |
| PCT/CN2020/142115 WO2021164439A1 (en) | 2020-02-18 | 2020-12-31 | Projection screen structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179788.8U CN212160333U (en) | 2020-02-18 | 2020-02-18 | Projection screen structure |
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| Publication Number | Publication Date |
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| CN212160333U true CN212160333U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020179788.8U Active CN212160333U (en) | 2020-02-18 | 2020-02-18 | Projection screen structure |
Country Status (2)
| Country | Link |
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| CN (1) | CN212160333U (en) |
| WO (1) | WO2021164439A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021164439A1 (en) * | 2020-02-18 | 2021-08-26 | 深圳光峰科技股份有限公司 | Projection screen structure |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016200613A (en) * | 2015-04-07 | 2016-12-01 | 三菱電機株式会社 | Rear projection type video display device and screen holding structure |
| CN204717295U (en) * | 2015-04-16 | 2015-10-21 | 深圳焦点伟业科技有限公司 | A kind of novel screen hanging support |
| CN207281453U (en) * | 2017-09-29 | 2018-04-27 | 广州市雄云视听设备有限公司 | A kind of narrow side picture frame screen suitable for ultrashort burnt curtain face |
| 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 |
| CN108388074A (en) * | 2018-03-19 | 2018-08-10 | 青岛海信激光显示股份有限公司 | Projection screen and optical projection system |
| CN208239791U (en) * | 2018-03-19 | 2018-12-14 | 青岛海信激光显示股份有限公司 | projection screen |
| CN209028407U (en) * | 2018-10-31 | 2019-06-25 | 深圳博爵文创新媒体科技有限公司 | Displacement-type curtain fixes device |
| CN212160333U (en) * | 2020-02-18 | 2020-12-15 | 深圳光峰科技股份有限公司 | Projection screen structure |
-
2020
- 2020-02-18 CN CN202020179788.8U patent/CN212160333U/en active Active
- 2020-12-31 WO PCT/CN2020/142115 patent/WO2021164439A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021164439A1 (en) * | 2020-02-18 | 2021-08-26 | 深圳光峰科技股份有限公司 | Projection screen structure |
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| WO2021164439A1 (en) | 2021-08-26 |
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