WO2022052866A1 - 幕布固定结构、安装支架、幕布装置和投影显示*** - Google Patents

幕布固定结构、安装支架、幕布装置和投影显示*** Download PDF

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Publication number
WO2022052866A1
WO2022052866A1 PCT/CN2021/116365 CN2021116365W WO2022052866A1 WO 2022052866 A1 WO2022052866 A1 WO 2022052866A1 CN 2021116365 W CN2021116365 W CN 2021116365W WO 2022052866 A1 WO2022052866 A1 WO 2022052866A1
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WO
WIPO (PCT)
Prior art keywords
curtain
frame
adjusting
fixing
adjustment
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Application number
PCT/CN2021/116365
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English (en)
French (fr)
Inventor
严子深
陈佳男
周正平
李屹
Original Assignee
深圳光峰科技股份有限公司
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Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2022052866A1 publication Critical patent/WO2022052866A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens

Definitions

  • the present application belongs to the field of display technology, and more particularly, relates to a screen fixing structure, a mounting bracket, a screen device and a projection display system.
  • Ultra-short-focus projection screens of 100 inches and above can be supported by a high-rigidity backplane during installation.
  • the high-hardness backplane can ensure the flatness of the projection screen and ensure the projection quality.
  • the high-hardness backplane has higher requirements for installing the wall surface (such as flatness, verticality, etc.); in addition, the high-hardness backplane cannot be bent, which makes transportation and installation difficult.
  • the curtain is also supported by the combination of the frame and the elastic member.
  • a plurality of elastic pieces need to be arranged in the circumferential direction of the curtain, and the curtain and the frame are elastically connected by the elastic pieces, so as to achieve the required flatness of the curtain.
  • the installation structure can weaken the requirements for installing the wall during installation, the installation process is cumbersome and the operation is difficult, resulting in low installation efficiency.
  • the objects of the present application include, for example, to provide a screen fixing structure, a mounting bracket, a screen device and a projection display system to improve the above problems.
  • a curtain fixing structure including a frame, a fixing member and an adjusting component.
  • the frame includes an adjustment part, a supporting side and an installation side arranged opposite to each other, and a clamping part is arranged on the installation side.
  • the fixing piece is used for fixed connection with the edge of the curtain, and the fixing piece is detachably connected with the clamping part.
  • the adjustment component is arranged between the curtain and the frame, and is elastically connected with the frame.
  • the adjustment component has a fixed state and a push state. The adjustment component in the fixed state is fixedly connected to the frame, and the adjustment component in the push state pushes against the fixed state. Pieces of attached curtain to provide tension for the curtain to unfold on the support side of the frame.
  • the clamping part is provided with a clamping slot along the length direction of the frame
  • the fixing part includes a first connection part and a second connection part
  • the first connection part is used for fixed connection with the edge of the curtain
  • the second connection part is provided with a buckle.
  • the buckle is arranged in the card slot.
  • the fixing member includes a clamping rod and a fixing frame
  • the clamping rod is used for fixed connection with the edge of the curtain
  • the fixing frame is fastened on the installation side, and is enclosed with the clamping part to form a clamping space
  • the clamping rod is clamped on the installation side. Card space.
  • the fixing frame includes a buckling portion and a shielding portion connected with the buckling portion, the buckling portion is provided with a slot, the buckling portion is buckled with the buckling portion and forms a clamping space, and the shielding portion covers the frame and is connected with the frame.
  • An adjustment space for the adjustment assembly to move in a direction perpendicular to the length of the frame is formed between the adjustment parts.
  • the frame further includes a side between the support side and the installation side, and the adjusting portion is disposed on the side.
  • the adjusting assembly When the adjusting assembly is in a pushing state, the adjusting assembly has a tendency to move in a direction away from the adjusting portion.
  • the adjustment assembly includes a slider and an elastic member, the slider is matched with the adjustment portion, and the elastic member is connected between the slider and the adjustment portion, and is used to provide a thrust force to the slider.
  • the adjustment part is provided with an adjustment groove
  • the slider is embedded in the adjustment groove and protrudes from the open end of the adjustment groove
  • one end of the slider close to the adjustment groove is provided with a groove
  • one end of the elastic piece is embedded in the groove
  • the other end is embedded in the groove.
  • One end abuts against the groove bottom of the adjusting groove.
  • the adjusting part is provided with a guide piece
  • the extension direction of the guide piece has an included angle with the length direction of the frame
  • the slide block is provided with a guide hole matched with the guide piece
  • the elastic piece and the slide block are sequentially sleeved on the guide piece
  • the sliding part is slidable. The block is pressed against the elastic piece.
  • the adjusting assembly further includes a positioning member, the sliding block is provided with a first positioning hole along the thickness direction thereof, and the adjusting portion is provided with a second positioning hole corresponding to the first positioning hole.
  • the elastic member is in a compressed state and the compression amount is greater than or equal to the preset compression amount, the second positioning hole and the first positioning hole are aligned, and the positioning member is simultaneously inserted into the first positioning hole and the second positioning hole.
  • a curtain mounting bracket which includes a curtain fixing structure, the number of the curtain fixing structures is multiple, and all the frames are connected end to end in sequence and enclosed into a hollow frame structure.
  • the curtain installation bracket includes a first side and a second side opposite to each other, the first side corresponds to the support side of the frame, and the second side corresponds to the installation side of the frame.
  • a curtain device including a curtain and a curtain fixing structure, or a curtain and a curtain mounting bracket.
  • the curtain includes a curtain body and a turn-up portion connected to the edge of the curtain body.
  • the curtain body is located on the support side of the frame.
  • the turn-up portion is turned over to the adjustment component.
  • the body and the fixing piece are respectively located on opposite sides of the frame.
  • a projection display system including a projector and a screen device, where the projector is used for projecting an image to the screen.
  • the curtain fixing structure provided by the embodiment of the present application is fixedly connected with the edge of the curtain through the fixing member, the adjusting component is elastically connected with the adjusting portion of the frame, and the fixing member is detachably connected with the clamping portion on the mounting side of the frame.
  • the curtain is located on the support side of the frame, one edge is fixed, and the other edge is fixedly connected with the fixing piece; the adjustment component is assembled on the adjustment part of the frame, and the fixing piece connected with the curtain is wrapped around the adjustment component, or the curtain.
  • the edge part is detachably connected to the frame through the fixing piece after being wrapped around the adjusting component.
  • the curtain fixing structure is convenient for installation, simple in structure, reduces installation difficulty, and is beneficial to improve installation efficiency.
  • the adjustment component can move with the deformation of the screen, so that the screen can always be in a flat state, which is beneficial to compensate for the amount of deformation of the screen caused by thermal expansion and contraction.
  • FIG. 1 is a cross-sectional view of a curtain fixing structure provided by an embodiment of the present application.
  • FIG. 2 is an exploded schematic view of a curtain fixing structure provided by an embodiment of the present application.
  • Fig. 3 is the partial structure schematic diagram of the frame in Fig. 2;
  • FIG. 4 is a cross-sectional view of a structure of a curtain fixing structure provided by an embodiment of the application.
  • FIG. 5 is a cross-sectional view of another structure of the curtain fixing structure provided by the embodiment of the present application.
  • FIG. 6 is an exploded schematic view of a structure of an adjustment component and a frame in the curtain fixing structure provided by the embodiment of the present application;
  • FIG. 7 is an exploded schematic diagram of another structure of the adjustment assembly and the frame in the curtain fixing structure provided by the embodiment of the present application;
  • FIG. 8 is a cross-sectional view of a structure when the adjustment component and the frame are relatively fixed in the curtain fixing structure provided by the embodiment of the application;
  • FIG. 9 is a cross-sectional view of another structure when the adjustment component and the frame are relatively fixed in the curtain fixing structure provided by the embodiment of the present application;
  • FIG. 10 is a schematic diagram of another structure when the adjustment component and the frame are relatively fixed in the curtain fixing structure provided by the embodiment of the application;
  • FIG. 11 is a cross-sectional view of another structure when the adjustment component and the frame are relatively fixed in the curtain fixing structure provided by the embodiment of the application;
  • FIG. 12 is a schematic structural diagram of a curtain installation bracket provided by an embodiment of the application.
  • FIG. 13 is an exploded schematic diagram of the curtain device provided by the embodiment of the application.
  • FIG. 14 is a schematic diagram of a partial structure of the screen in FIG. 13 .
  • a high-hardness backplane can be used during installation, which can be assembled and fixed by lamination and other processes.
  • the high-hardness backplane can ensure the flatness of the projection screen and the display quality of the projected image.
  • the projection screen is fixed on the installation wall through the back plate, and the installation wall is also inclined.
  • the backplanes are made of honeycomb aluminum and other metal materials, the overall weight is large, and the projection screen cannot be bent when fixed on the backplane, which makes it difficult to transport and install.
  • the frame is a detachable structure, and the assembled frame serves as the support body of the projection screen.
  • a plurality of elastic pieces are arranged in the circumferential direction of the projection screen (each side of the projection screen is connected with 40 to 50 elastic pieces), which are connected to the frame through the elastic pieces. , and make the projection screen get good flatness.
  • the frame is detachable and the projection screen is a foldable curtain, which is beneficial to reduce transportation difficulties.
  • the installation method of this structure has a complicated installation process, requiring staff to connect the elastic parts around the projection screen in sequence, and the number of elastic parts is large, resulting in low installation efficiency.
  • an embodiment of the present application provides a curtain fixing structure 100 .
  • the curtain fixing structure 100 is used for fixedly connecting with the edge of the curtain 101 .
  • the curtain 101 can be unfolded into a flat state, even if the curtain 101 is under the influence of thermal expansion and cold contraction, the unfolded state can still be maintained.
  • the screen fixing structure 100 may include a frame 110 , a fixing member 120 and an adjusting component 130 .
  • the fixing member 120 is used for fixed connection with the edge of the curtain 101.
  • the fixing member 120 is detachably connected with the frame 110.
  • the adjusting component 130 is arranged between the curtain 101 and the frame 110, and is elastically connected with the frame 110, and has a fixed status and pushback status.
  • the adjusting assembly in the fixed state is fixedly connected with respect to the frame, and the adjusting assembly in the pushing state pushes against the curtain connected with the fixing member, thereby providing the screen with tension on the supporting side of the frame.
  • the adjusting assembly 130 when the screen 101 is installed with the screen fixing structure 100 or during the installation, the adjusting assembly 130 may be in a fixed state, and at this time, the adjusting assembly 130 is fixedly connected to the frame 110 .
  • the adjusting component 130 After the installation of the curtain 101 and the curtain fixing structure 100 is completed, the adjusting component 130 is in a pushing state. At this time, the adjusting component 130 pushes against the curtain 101 connected with the fixing member 120 , so as to stretch the curtain 101 into a flat state and the curtain 101
  • the light-receiving portion of the frame is located on the support side 113 of the frame 110 .
  • the frame 110 is an elongated rod-shaped structure, and each frame 110 may include an adjustment portion 111 , a support side 113 and an installation side 115 .
  • the adjusting part 111 is used to cooperate with the adjusting assembly 130 , so that the adjusting assembly 130 can move telescopically along a direction with a certain angle between the length of the frame 110 .
  • the support side 113 and the installation side 115 are disposed opposite to each other along the thickness direction of the frame 110 .
  • the installation side 115 of the frame 110 is provided with a clamping portion 1151 , which is used for detachable connection with the fixing member 120 .
  • the adjusting component 130 is elastically connected to the adjusting portion 111 of the frame 110 , the fixing member 120 is fixedly connected to the edge position of the screen 101 , and the fixing member 120 or the screen 101 is wrapped around the adjusting member 130 and can be connected to the engaging portion 1151 of the frame 110 .
  • the side of the adjustment assembly 130 away from the adjustment portion 111 pushes against the curtain 101 connected to the fixing member 120 . Since the adjustment assembly 130 has a thrust toward the side away from the frame 110 , under the pushing action of the adjustment assembly 130 , the curtain 101 It is always in a flat state, and the light-bearing part of the screen 101 is located on the supporting side 113 of the frame 110 .
  • the engaging portion 1151 on the mounting side 115 of the frame 110 can define a slot along the length of the frame 110
  • the fixing member 120 includes a first connecting portion and a second connecting portion.
  • the first connecting portion is used for fixedly connecting with the edge portion of the curtain 101.
  • the cross-sectional shape of the card slot may be a "T" shape
  • the cross-sectional shape of the clip 121 matches the cross-sectional shape of the card slot.
  • the cross-sectional shape of the buckle 121 is also set to be a "T”-shaped slot. The clip 121 is clamped in the slot, so that the curtain 101 is detachably connected to the frame 110 through the fixing member 120.
  • the shapes of the card slot and the buckle 121 are not limited to this, and can also be other shapes, as long as the fixing member 120 and the clip portion 1151 are clipped together.
  • the staff When installing, the staff only needs to snap the fixing member 120 to the frame 110, so that the installation process is simple, the installation difficulty is reduced, and the installation efficiency is improved.
  • the frame 110 may further include a side surface between the support side 113 and the installation side 115 , and the adjustment portion 111 is disposed on the side surface.
  • the side surfaces here include an inner side surface 116 and an outer side surface 117 , and the inner side surface 116 and the outer side surface 117 are disposed opposite to each other.
  • the adjustment part 111 is disposed on the outer side 117 of the frame 110 , the adjustment component 130 is elastically connected to the adjustment part 111 , and the curtain 101 is wrapped around the adjustment component 130 and fixed to the frame 110 by the fixing member 120 . connect.
  • the adjustment assembly 130 is in a pushing state.
  • the adjustment assembly 130 has a running tendency toward the direction away from the middle position of the curtain 101 , so as to apply a pushing force to the edge of the curtain 101 , thereby supporting the curtain 101 Open to the flat state.
  • the adjusting portion 111 may be disposed on the support side 113 or the installation side 115 of the frame 110 in addition to the position on the outer side surface of the frame 110 .
  • the adjusting assembly 130 can move in a direction having a certain angle with the surface of the supporting side 113 or the mounting side 115 of the frame 110 .
  • the movement direction of the adjustment assembly 130 may include movement in a direction perpendicular to the surface of the support side 113 or the mounting side 115 of the frame 110 , or may include an inclination to the surface of the support side 113 or the installation side 115 of the frame 110 As long as it can provide a component force perpendicular to the surface of the support side 113 or the installation side 115 of the frame 110 .
  • the specific setting position of the adjusting part 111 is not limited, as long as the adjusting part 130 is elastically connected to the adjusting part 111 of the frame 110 , and the curtain 101 can be supported and flattened by the telescopic movement of the adjusting part 130 relative to the frame 110 .
  • the fixing member 120 may include a clamping rod 123 and a fixing frame 125 .
  • the clamping rod 123 is used for fixed connection with the edge of the curtain 101 , and the extension direction of the clamping rod 123 is the same as the extension direction of the edge of the curtain 101 .
  • the edge portion of the curtain 101 is wrapped around the clamping rod 123, so that the size of the edge of the curtain 101 is larger.
  • the fixing frame 125 is fastened and connected to the mounting side 115 of the frame 110 , and the fixing frame 125 and the engaging portion 1151 (see FIG. 3 together) are enclosed to form a clamping space 1253 , and the clamping rod 123 is clamped in the clamping space 1253 , so that the screen 101 and the frame 110 are detachably connected.
  • the fixing frame 125 may include a buckling portion 1251 and a shielding portion 1255 connected with the buckling portion 1251 .
  • the engaging portion 1151 of the frame 110 defines a slot, and the engaging portion 1251 is engaged with the slot of the engaging portion 1151 and encloses the engaging portion 1151 to form an engaging space 1253 .
  • the shielding portion 1255 corresponds to the outer side surface of the frame 110 and the adjustment component 130 , and is used to shield the frame 110 and the adjustment component 130 . Specifically, the shielding portion 1255 is bent and formed, and an adjustment space 1257 is formed between the shielding portion 1255 and the adjustment portion 111 of the frame 110 for the adjustment component 130 to move in a direction perpendicular to the length of the frame 110 .
  • the shielding portion 1255 covers the side of the adjustment assembly 130 away from the frame 110 , the buckle portion 1251 is buckled with the engaging portion 1151 of the frame 110 , and there is a certain adjustment space 1257 between the shielding portion 1255 and the frame 110 .
  • the adjusting assembly 130 is allowed to float up and down in the adjusting space 1257, so as to stretch the screen cloth 101 into a flat state.
  • the clamping rod 123 can be an elongated rod, and the clamping rod 123 is fixedly connected with the edge of the curtain 101 . It can be understood that, in other optional embodiments, the clamping rods 123 can also be a plurality of rod-shaped structures with short lengths, and the plurality of clamping rods 123 are fixedly connected to the edge position of the screen 101 at intervals.
  • the clamping rod 123 can be a fiberglass rod.
  • Fiberglass rod is a composite material with glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as reinforcing material and synthetic resin as matrix material. Fiberglass rods have a fixed shape and can withstand tensile, flexural, compressive, and shear stresses.
  • the clamping rod 123 only needs to be clamped in the clamping space 1253, which is convenient for installation and has high installation efficiency.
  • the outer periphery of the frame 110 is shielded by the shielding portion 1255 , which not only provides an adjustment space, protects the curtain from scratches during the installation process, but also improves the aesthetics of the curtain fixing structure 100 .
  • connection between the fixing frame 125 and the frame 110 can be fixedly connected by using a locking member 127 in addition to the fastening method. That is, the fixing frame 125 and the frame 110 are provided with corresponding locking holes, and the locking members 127 are sequentially inserted into the locking holes on the fixing frame 125 and the frame 110, so as to securely connect the fixing frame 125 and the frame 110. (as shown in Figure 5).
  • the adjustment assembly 130 may include a slider 131 and an elastic member 133 .
  • the slider 131 is matched with the adjustment part 111 of the frame 110 , and the elastic member 133 is connected between the slider 131 and the adjustment part 111 .
  • the elastic member 133 is pressed by the sliding block 131 and the edge of the curtain 101 to generate a reaction force, thereby providing a thrust to the sliding block 131 away from the center of the curtain 101 .
  • the adjusting portion 111 is provided with an adjusting groove 1113 along the length direction of the frame 110 , the slider 131 is embedded in the adjusting groove 1113 and protrudes from the open end of the adjusting groove 1113 , and the elastic member 133 is connected to the adjusting groove 1113 .
  • the adjustment slot 1113 and the slider 131 are used to provide thrust to the slider 131 .
  • a groove 1313 is formed at one end of the slider 131 close to the adjustment groove 1113
  • the elastic member 133 includes a first end and a second end opposite to each other, the first end of the elastic member 133 is embedded in the groove 1313 , and the elastic member 133 The second end of , abuts the bottom of the adjusting groove 1113 .
  • the elastic member 133 is first embedded in the groove 1313 of the slider 131 , and then the slider 131 and the elastic member 133 are simultaneously embedded in the adjustment groove 1113 .
  • the slider 131 includes an embedded portion 1311 and an abutting portion 1317 fixedly connected to the embedded portion 1311 .
  • the embedded portion 1311 is used to be embedded in the adjustment groove 1113
  • a groove 1313 is defined in the embedded portion 1311
  • the elastic member 133 is connected to the groove 1313 of the embedded portion 1311 .
  • the abutting portion 1317 protrudes from the opening end of the adjusting slot 1113 , and the abutting portion 1317 is used to abut the edge of the curtain 101 to stretch the curtain 101 .
  • the thickness dimension of the abutting portion 1317 is greater than the thickness dimension of the embedding portion 1311 , and both sides of the abutting portion 1317 along the thickness direction protrude from both sides of the embedding portion 1311 along the thickness direction.
  • the side of the abutting portion 1317 close to the supporting side 113 of the frame 110 protrudes from the surface of the supporting side 113 of the frame 110 , so that when the curtain 101 is installed on the curtain fixing structure 100 , The two ends of the curtain 101 are in contact with the protruding parts of the abutting part 1317 (as shown in Figure 5 ).
  • the flatness of the 101 during use avoids the influence on the flatness of the screen 101 when the supporting side 113 of the frame 110 is not flat.
  • the screen 101 is installed on the screen fixing structure 100 , and the screen 101
  • the flatness of the light-receiving portion of the screen 110 will fit with the support side 113 of the frame 110 .
  • the support side 113 of the frame 110 is convex or uneven, the flatness of the light-receiving portion of the screen 101 will be affected to a certain extent.
  • the length of the elastic member 133 in the natural state should be greater than the depth of the groove 1313. Meanwhile, after the elastic member 133 is embedded in the groove 1313, the maximum distance between the elastic member 133 and the embedded portion 1311 in the natural state should be greater than the adjustment groove. 1113 depth.
  • the elastic member 133 is embedded in the groove 1313 of the embedding portion 1311, and the elastic member 133 can protrude from the opening position of the groove 1313 in a natural state;
  • the slider 131 with the elastic member 133 installed is embedded in the In the adjustment slot 1113 of the frame 110 , in the natural state of the elastic member 133 , at least part of the embedded portion 1311 of the slider 131 can protrude from the opening position of the adjustment slot 1113 , so that the slider 131 can be adjusted under the action of the elastic member 133 .
  • the adjusting portion 111 is provided with a guide member 1115 , and the extending direction of the guide member 1115 has an included angle with the length direction of the frame 110 .
  • the elastic member 133 is sleeved on the guide member 1115 , and the embedded portion 1311 of the slider 131 is provided with a guide hole 1315 which is matched with the guide member 1115 .
  • the elastic member 133 is first sleeved on the guide rod, and then the slider 131 is sleeved on the guide member 1115 , and the slider 131 can compress the elastic member 133 .
  • the elastic member 133 is pressed to generate a reaction force, so that the slider 131 is elastically connected to the frame 110 through the elastic member 133 .
  • FIG. 7 is opposite to the perspective of FIGS. 1 to 6 described above. That is, after the installation of the curtain 101 and the curtain fixing structure 100 is completed, the light-bearing part of the curtain 101 is located on the front side (the side facing the reader) in the perspective of FIG. to the reader's side).
  • the extending direction of the guide member 1115 is perpendicular to the length direction of the frame 110 , and the guide member 1115 provides a guiding function for the movement of the adjustment assembly 130 relative to the frame 110 , so that the movement direction of the adjustment assembly 130 is perpendicular to the length direction of the frame 110 .
  • the length of the elastic member 133 , the length of the guide member 1115 and the depth of the guide hole 1315 opened by the embedding portion 1311 have the following relationship:
  • the first situation the sum of the length of the elastic member 133 in the natural state and the depth of the guide hole 1315 is greater than the length dimension of the guide member 1115 .
  • the embedded portion 1311 of the slider 131 is sleeved on the guide rod and the end surface of the embedded portion 1311 presses against the elastic member 133 .
  • the second case the length of the elastic member 133 in the natural state is greater than the depth of the guide hole 1315 opened by the embedding portion 1311 , and the length of the elastic member 133 in the natural state is greater than the length dimension of the guide member 1115 .
  • the embedded portion 1311 of the slider 131 is sleeved on the elastic member 133 and the guide member 1115 at the same time.
  • the embedded portion 1311 of the slider 131 is connected to the guide member 1115 through the elastic member 133, in the natural state of the elastic member 133, at least part of the embedded portion 1311 of the slider 131 can protrude from the opening of the adjustment groove 1113 position, so that the sliding block 131 can normally telescopically move under the action of the elastic member 133 .
  • the adjustment assembly 130 can continue to be in a compressed and locked state without artificial pressure, and will not push against the edge of the curtain 101 .
  • the adjustment component 130 can be pushed against the edge of the curtain 101 .
  • the adjusting assembly 130 may further include a positioning member 135 .
  • the slider 131 is provided with a first positioning hole 1319 along the thickness direction thereof, and the adjusting portion 111 is provided with a second positioning hole 1110 corresponding to the first positioning hole 1319 .
  • the second positioning hole 1110 and the first positioning hole 1319 are aligned, and the positioning member 135 is simultaneously inserted into the first positioning hole 1319 and the first positioning hole 1319.
  • Two positioning holes 1110 It should be noted that the preset compression amount of the elastic member 133 is set with reference to the edge position where the slider 131 will not push against the screen 101 .
  • the slider 131 compresses the elastic member 133 so that the compression amount of the elastic member 133 is equal to a certain length, the abutting portion 1317 of the slider 131 just contacts the edge position of the screen 101 but has no pushing force.
  • the compression amount is the compression amount of the critical state.
  • the preset compression amount needs to be greater than or equal to the compression amount in the critical state.
  • the positioning member 135 includes a plug-in pin.
  • the plugging pin is inserted into the first positioning hole 1319 of the slider 131 and the second positioning hole 1110 of the adjusting portion 111 at the same time, so that the slider 131 and the frame 110 are relatively fixedly connected, thereby maintaining the compressed state of the elastic member 133 .
  • the plug pin is pulled out from the slider 131 and the adjustment part 111 to release the adjustment assembly 130 , and the slider 131 faces away from the adjustment part 111 under the thrust of the elastic member 133 .
  • One side of the slider 131 slides, and the abutting portion 1317 of the slider 131 pushes against the edge of the curtain 101, so that the curtain 101 is stretched to a flat state, so as to obtain a good flatness.
  • the shape and size of the first positioning hole 1319 opened along the thickness direction of the embedded portion 1311 of the slider 131 and the second positioning hole 1110 opened along the thickness direction of the adjustment portion 111 of the frame 110 should be the same as the size and shape of the insertion pin. Pin segments to match.
  • the first positioning hole 1319 is just aligned with the second positioning hole 1110, and the pin segment of the plug-in pin is inserted into the first positioning hole 1319 and the second positioning hole 1110, the slider 131 and the frame 110 are fixedly connected, and the elastic member 133 is kept in a pressed state to generate a reaction force.
  • the positioning member 135 may comprise a screw.
  • the screw is inserted into the first positioning hole 1319 of the slider 131 and the second positioning hole 1110 of the adjusting portion 111 at the same time, so that the slider 131 and the frame 110 are relatively fixedly connected, thereby maintaining the compressed state of the elastic member 133 .
  • the first positioning hole 1319 of the slider 131 is a through hole
  • the adjusting portion 111 includes a first side wall and a second side wall on both sides of the adjusting groove 1113 .
  • the first side wall is located on the mounting side 115 of the frame 110
  • the second side wall is located on the support side 113 of the frame 110
  • the first and second side walls are provided with coaxial second positioning holes 1110 .
  • the screws are inserted into the frame 110 and the slider 131 from the mounting side 115 , the second positioning holes 1110 opened on the first side wall are through holes, and the second positioning holes 1110 opened on the second side wall are threaded holes.
  • the adjusting component 130 cooperates with the adjusting portion 111, and when the slider 131 compresses the elastic member 133 to a preset compression amount, the second positioning holes 1110 on the first side wall and the second side wall and the first A positioning hole 1319 is just aligned, and after the screw is inserted into the second positioning hole 1110 on the first side wall and the first positioning hole 1319 on the slider 131 in sequence, it is threadedly connected with the second positioning hole 1110 on the second side wall, thereby The slider 131 and the frame 110 are fixedly connected, and the elastic member 133 is kept in a pressed state to generate a reaction force.
  • the screws are disassembled, the adjustment assembly 130 is released, and the slider 131 slides toward the side away from the adjustment portion 111 under the thrust of the elastic member 133, and the slider 131 abuts The portion 1317 pushes against the edge position of the screen cloth 101, so that the screen cloth 101 is stretched into a flat state, so as to obtain a good flatness.
  • the positioning member 135 may include a rotary lock.
  • the embedded portion 1311 of the slider 131 is provided with a through hole
  • the mounting side 115 of the embedded portion 1311 close to the frame 110 is also provided with a first positioning hole 1319 communicating with the through hole
  • the side wall of the adjustment portion 111 close to the mounting side 115 is provided with a first positioning hole 1319 .
  • the second positioning hole 1110 is both oblong holes.
  • the rotary lock includes a non-circular locking segment.
  • the adjusting assembly 130 is matched with the adjusting portion 111, and when the slider 131 compresses the elastic member 133 to a preset compression amount, the second positioning hole 1110 of the adjusting portion 111 is exactly aligned with the first positioning hole 1319 on the slider 131,
  • the locking section of the rotary lock is inserted into the first positioning hole 1319 of the slider 131 and the second positioning hole 1110 of the adjusting portion 111 at the same time, and then embedded in the through hole of the slider 131, and then rotates relative to the frame 110.
  • the locking section of the rotary lock rotates 90° to abut against the side wall of the through hole, so as to prevent the rotary lock from coming out of the through hole of the slider 131 .
  • the slider 131 is relatively fixedly connected to the frame 110 , so that the compressed state of the elastic member 133 is maintained, and the elastic member 133 generates a reaction force.
  • the rotary lock is rotated by 90°, so that the locking section of the rotary lock can be positioned from the first positioning hole 1319 on the slider 131 and the second positioning of the adjusting portion 111 Out of the hole 1110, the adjustment assembly 130 is released.
  • the slider 131 slides toward the side away from the adjusting portion 111 under the thrust of the elastic member 133, and then the abutting portion 1317 of the slider 131 pushes against the edge of the curtain 101, so that the curtain 101 is stretched into a flat state, thereby obtaining Good flatness.
  • the elastic member 133 may include a rubber strip, a strip elastic sheet, a compression spring, a rubber band, a magnetic member, and the like.
  • the elastic member 133 is one of a rubber strip, a strip elastic sheet, a compression spring and a rubber band, one end of the elastic member 133 is connected to the adjusting portion 111, and the other end is connected to the slider 131;
  • the elastic member 133 is a magnetic member
  • the magnetic member includes two opposite magnets of the same nature, one of which is fixedly arranged on the adjusting portion 111 , and the other is fixedly arranged on the slider 131 . Since the two magnets are of the same nature and opposite to each other, a repulsive force will be generated between the two magnets, so that the pushing slider 131 moves outward relative to the adjusting portion 111 .
  • the installation process of the curtain 101 on the curtain fixing structure 100 is as follows:
  • the adjustment assembly 130 is assembled on the adjustment part 111 of the frame 110, and the adjustment assembly 130 is compressed at the same time, so that the elastic member 133 in the adjustment assembly 130 is in a stable compressed state and the compression amount is greater than or equal to the preset compression amount, so that the The adjustment assembly 130 is relatively fixed relative to the frame 110 .
  • the adjusting assembly 130 is released, so that the slider 131 is pushed against the edge position of the screen cloth 101 under the pushing force of the elastic member 133 , so as to stretch the screen cloth 101 into a flat state.
  • the curtain fixing structure 100 provided in the embodiment of the present application is convenient for the installation of the curtain 101, and the structure is simple, which reduces the difficulty in the installation process, thereby helping to improve the installation efficiency.
  • the adjusting assembly 130 can move with the deformation of the screen cloth 101 , so that the screen cloth 101 can always be in a flat state, which is beneficial to compensate the deformation amount of the screen cloth 101 caused by thermal expansion and contraction.
  • an embodiment of the present application further provides a curtain mounting bracket 200
  • the curtain mounting bracket 200 may include a curtain fixing structure 100 .
  • the number of the curtain fixing structures 100 may be multiple, and all the frames 110 are connected end to end in sequence, and are enclosed into a hollow frame structure.
  • the frame 110 in each curtain fixing structure 100 includes an inner side facing the center of the frame and an outer side facing away from the center of the frame.
  • the adjusting portion 111 is located on the outer side of the frame 110 .
  • the curtain 101 is fixedly connected to the inner frame of the curtain mounting bracket 200 , and under the action of the curtain mounting bracket 200 , the curtain 101 can always be in a state of being fully expanded and not slack.
  • the frame body formed by connecting the plurality of frame frames 110 end to end in sequence has a first side and a second side along the thickness direction, wherein the first side and the second side are disposed opposite to each other.
  • the first side of the curtain mounting bracket 200 corresponds to the supporting side 113 of the frame 110
  • the second side of the curtain mounting bracket 200 corresponds to the mounting side 115 of the frame 110 .
  • the screen 101 is located on the first side of the frame body, and the fixing member 120 is detachably connected to the second side of the frame body.
  • the screen 101 is rectangular, including four sides.
  • the frame corresponding to the curtain 101 is also rectangular, that is, the number of the curtain fixing structures 100 may include four, the four frames 110 are connected end to end in sequence, and two adjacent frames 110 may be connected by corner connectors at the connection.
  • the shape of the curtain 101 is not limited to a rectangle, and the sides of the curtain 101 are not limited to four sides.
  • a set of curtain fixing structures 100 are connected to one side of the curtain 101, so as to stretch the curtain 101 from all directions.
  • the curtain mounting bracket 200 provided in the embodiment of the present application fixes the curtain 101 in the circumferential direction, so that each edge of the curtain 101 is stretched by the curtain fixing structure 100, which is beneficial to obtain good flatness.
  • the embodiment of the present application also provides a curtain device 300, the curtain device 300 may include the curtain 101 and the above-mentioned curtain fixing structure 100, or the curtain device 300 may include the curtain 101 and the above-mentioned curtain mounting bracket 200.
  • the curtain 101 may include a curtain body 102 and a turn-up cloth 103 connected to the edge of the curtain body 102 .
  • the curtain body 102 is an image receiving part of the projection device, and the curtain body 102 and the fixing member 120 are fixedly connected by the reverse wrapping cloth 103 .
  • the turn-up cloth 103 includes opposite first and second edges, the circumference of the screen body 102 is fixedly connected with the first edge of the turn-up cloth 103, and the second edge of the turn-up cloth 103 is fixedly connected with the fixing member 120 .
  • the screen body 102 is located on the support side 113 of the frame 110, and the wrapping cloth 103 is turned up on the frame 110 and the adjusting component 130, so that the screen body 102 and the fixing member 120 are located on opposite sides of the frame, and then the fixing
  • the component 120 is detachably connected to the engaging portion 1151 of the frame 110 .
  • the first edge of the turn-up cloth 103 and the screen body 102 may be fixedly connected by means of bonding. It can be understood that, in other optional embodiments, the first edge of the turn-up cloth 103 can also be fixedly connected to the edge of the curtain body 102 by means of sewing, riveting, etc., which is not limited in this application, as long as the curtain is not damaged.
  • the main display surface of the main body 102 can be in any form.
  • the fixing of the fixing member 120 to the second edge of the turn-up cloth 103 means that the fixing member 120 may be an integral structure or the number of the fixing member 120 may be multiple.
  • the fixing member 120 of the overall structure is in the shape of an elongated rod, which is fixedly connected to the entire second edge of the reverse wrapping cloth 103 along the length direction, and at least two clips can be arranged on the fixing member 120 Buckle 121, the buckle 121 is connected with the card slot of the frame 110, and the operation is convenient.
  • the fixing member 120 is in the second case, a plurality of fixing members 120 are sequentially connected to the turn-up cloth 103 at intervals, and each fixing member 120 is provided with a buckle 121 . During installation, each fixing member 120 needs to be clamped to the slot of the frame 110 .
  • the screen body 102 can be prepared by using any one or more of PC material (Polycarbonate, polycarbonate), PVC material (Polyvinyl chloride, polyvinyl chloride) or PET material (Polyethylene terephthalate, polyethylene terephthalate).
  • the screen body is a soft screen.
  • the circumferential edge of the curtain body 102 is provided with a reverse wrapping cloth 103 for connecting with the fixing member 120, and the reverse wrapping cloth 103 can be made of nylon cloth. A good flatness of the screen 101 is obtained.
  • the installation process of the curtain 101 on the curtain installation bracket 200 is simple and convenient, which reduces the difficulty of installation and is beneficial to improve the installation efficiency. The user can also install it quickly without professional staff, which weakens the professional requirements of the installer.
  • the installation process of the curtain device 300 provided in the embodiment of the present application is as follows:
  • all the frames 110 are connected end to end to form a frame body.
  • the direction pushes against the reverse wrapping cloth 103 of the screen cloth 101 .
  • the adjusting components 130 are connected to the adjusting parts 111 of the frame 110 in a one-to-one correspondence, so that the adjusting components 130 are in a compressed state and are relatively fixed to the frame 110 .
  • the adjustment assembly 130 is released, so that the adjustment assembly 130 pushes against the reverse wrapping cloth 103 fixedly connected with the screen cloth body 102 , so as to stretch the screen cloth body 102 into a flat state.
  • Embodiments of the present application further provide a projection display system, which may include a projector and the above-mentioned screen device 300 .
  • the projector is used to project an image to the screen 101, and the screen body 102 of the screen 101 can always be in a flat state, and the imaging effect is not easily affected by thermal expansion and contraction.
  • the curtain fixing structure 100 , the mounting bracket, the curtain device 300 and the projection display system provided by the embodiments of the present application have simple structures, and the curtain 101 is easy to disassemble and assemble during installation and fixing, which effectively reduces the difficulty of disassembly and assembly, and makes the curtain 101 obtain good quality.
  • the disassembly and assembly efficiency is improved; in addition, the overall weight is reduced, the transportation and installation process are convenient, the installation process is simplified, the professional requirements for the installer are reduced, and the installation cost is saved.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

本申请实施例提供了一种幕布固定结构、安装支架、幕布装置和投影显示***，涉及显示技术领域。幕布固定结构包括边框、固定件及调节组件。边框包括调节部、背对设置的支撑侧和安装侧，安装侧设有卡接部。固定件用于和幕布的边缘固定连接，且与卡接部可拆卸连接。调节组件设置于幕布和边框之间，与边框弹性连接，并具有固定状态和抵推状态，处于固定状态的调节组件相对于边框固定连接，处于抵推状态的调节组件抵推于与固定件连接的幕布，以提供幕布展开于边框的支撑侧的张力。幕布安装支架包括多个幕布固定结构，全部边框首尾依次连接且围合成中空框架结构。幕布装置包括幕布和幕布安装支架。本申请安装方便，降低安装难度，有利于提高安装效率。

Description

幕布固定结构、安装支架、幕布装置和投影显示*** 技术领域
本申请属于显示技术领域，更具体地，涉及一种幕布固定结构、安装支架、幕布装置和投影显示***。
背景技术
100寸及以上尺寸的超短焦投影屏幕在安装时，可以采用高硬度的背板作为支撑。其中，高硬度的背板可以保证投影屏幕的平面度，确保投影质量。然而，高硬度的背板对于安装墙面(例如平面度、垂直度等)有较高要求；另外，高硬度的背板由于不能弯折导致运输、安装困难。
目前，也有采用框架和弹性件结合的方式对幕布进行支撑。在安装时，需要在幕布的周向设置多个弹性件，通过弹性件将幕布与框架弹性连接，以达到幕布所需要的平整度。该安装结构虽然可以弱化安装时对安装墙面的要求，但是，安装过程繁琐，操作困难，导致安装效率低下。
实用新型内容
本申请的目的包括，例如，提供了一种幕布固定结构、安装支架、幕布装置和投影显示***，以改善上述问题。
本申请的实施例可以这样实现：
第一方面，提供一种幕布固定结构，包括边框、固定件以及调节组件。边框包括调节部、背对设置的支撑侧和安装侧，安装侧设置有卡接部。固定件用于和幕布的边缘固定连接，固定件与卡接部可拆卸连接。调节组件设置于幕布与边框之间，并与边框弹性连接，调节组件具有固定状态和抵推状态，处于固定状态的调节组件相对于边框固定连接，处于抵推状态的调节组件抵推于与固定件连接的幕布，以提供幕布展开于边框的支撑侧的张力。
进一步地，卡接部沿边框的长度方向开设有卡槽，固定件包括第一连接部和第二连接部，第一连接部用于和幕布的边缘固定连接，第二连接部设置有卡扣，卡扣卡设于卡槽。
进一步地，固定件包括卡接杆和固定框，卡接杆用于和幕布的边缘固定连接，固定框扣合于安装侧，且与卡接部围合成卡设空间，卡接杆卡接于卡设空间。
进一步地，固定框包括扣合部和与扣合部连接的遮挡部，卡接部开设有卡槽，扣合部扣合于卡接部且形成卡设空间，遮挡部遮盖于边框，且与调节部之间形成供调节组件沿垂直于边框长度的方向移动的调节空间。
进一步地，边框还包括位于支撑侧和安装侧之间的侧面，调节部设置于侧面，当调节组件处于抵推状态时，调节组件具有朝向背离调节部的方向的运动趋势。
进一步地，调节组件包括滑块和弹性件，滑块与调节部配合，弹性件连接于滑块和调节部之间，且用于向滑块提供推力。
进一步地，调节部开设有调节槽，滑块嵌设于调节槽且凸出于调节槽的开口端，滑块靠近调节槽的一端开设有凹槽，弹性件的一端嵌设于凹槽，另一端抵接于调节槽的槽底。
进一步地，调节部设置有导向件，导向件的延伸方向与边框的长度方向具有夹角，滑块开设有与导向件配合的导向孔，弹性件和滑块依次套设于导向件，且滑块抵压于弹性件。
进一步地，调节组件还包括定位件，滑块开设有沿其厚度方向的第一定位孔，调节部开设有与第一定位孔相对应的第二定位孔。当弹性件处于压缩状态，且压缩量大于或者等于预设压缩量时，第二定位孔和第一定位孔对齐，定位件同时插设于第一定位孔和第二定位孔。
第二方面，提供一种幕布安装支架，包括幕布固定结构，幕布固定结构的数量为多个，全部边框首尾依次连接且围合成中空的框架结构。幕布安装支架包括背对的第一侧和第二侧，第一侧与边框的支撑侧相对应，第二侧与边框的安装侧相对应。
第三方面，提供一种幕布装置，包括幕布和幕布固定结构，或者幕布和幕布安装支架。幕布包括幕布本体和连接于幕布本体边缘的反包部，幕布本***于边框的支撑侧，反包部反包于调节组件，反包部远离幕布本体的一侧与固定件固定连接，以使幕布本体和固定件分别位于边框背对的两侧。
第四方面，提供一种投影显示***，包括投影仪和幕布装置，投影仪用于向幕布投射图像。
本申请实施例提供的幕布固定结构，通过固定件与幕布的边缘位置固定连接，调节组件与边框的调节部弹性连接，固定件与位于边框安装侧的卡接部可拆卸连接。
安装时，幕布位于边框的支撑侧，其中一侧边缘固定，另一侧边缘与固定件固定连接；调节组件装配于边框的调节部上，连接有幕布的固定件反包于调节组件，或者幕布边缘部分反包于调节组件后，通过固定件与边框可拆卸连接。调节组件在抵推状态下，滑块抵推于幕布的边缘位置，从而将幕布撑开为平展状态。
该幕布固定结构安装方便，结构简单，降低安装难度，有利于提高安装效率。另外，调节组件可以随幕布的变形而发生移动，使得幕布可以始终处于平展状态，有利于补偿幕布由于热胀冷缩而造成的变形量。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本申请实施例提供的幕布固定结构的剖视图；
图2为本申请实施例提供的幕布固定结构的分解示意图；
图3为图2中边框的局部结构示意图；
图4为本申请实施例提供的幕布固定结构一种结构的剖视图；
图5为本申请实施例提供的幕布固定结构另一结构的剖视图；
图6为本申请实施例提供的幕布固定结构中调节组件和边框一种结构的分解示意图；
图7为本申请实施例提供的幕布固定结构中调节组件和边框另一种结构的分解示意图；
图8为本申请实施例提供的幕布固定结构中调节组件和边框相对固定时一种结构的剖视图；
图9为本申请实施例提供的幕布固定结构中调节组件和边框相对固定时另一结构的剖视图；
图10为本申请实施例提供的幕布固定结构中调节组件和边框相对固定时又一结构的示意图；
图11为本申请实施例提供的幕布固定结构中调节组件和边框相对固定时又一结构的剖视图；
图12为本申请实施例提供的幕布安装支架的结构示意图；
图13为本申请实施例提供的幕布装置的分解示意图；
图14为图13中幕布的局部结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。
在本申请的描述中，需要理解的是，术语“中心”、“长度”、“内”、“外”等指示的方位或者位置关系为基于附图所示的方位或者位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的 限制。此外，“抵推”是动词，意指直接或间接地抵接于某物体并能够向该物体提供一定的推力，能够使其运动或者具有运动的趋势。“反包于”是指幕布的边缘位置绕过边框的支撑侧后通过固定件进行固定，可以包覆于边框上。
需要说明的是，在不冲突的情况下，本申请的实施例中的特征可以相互结合。
针对100寸及以上尺寸的超短焦菲涅尔抗光投影屏幕，安装时，可以采用高硬度的背板，通过贴合等工艺组装固定。高硬度的背板可以保证投影屏幕的平面度和投影图像的显示质量。
然而，当安装墙面不平整或者倾斜时，投影屏幕通过背板固定在安装墙面上也会呈现倾斜状态。另外，由于背板大多采用了蜂窝铝等金属材料，导致整体重量大，投影屏幕固定在背板上无法弯折，进而在运输和安装过程中存在较大困难。
为了减少投影屏幕对安装墙面的要求，可以采用框架和弹性件结合的方式。框架为可拆卸结构，组装后的框架作为投影屏幕的支撑主体，投影屏幕的周向设置多个弹性件(投影屏幕的每边都连接有40～50个弹性件)，通过弹性件与框架连接，且使投影屏幕获得良好的平整度。
该安装方式由于框架可拆卸，投影屏幕为可折叠幕布，有利于降低运输困难。但是，该结构的安装方式安装过程繁琐，需要工作人员将投影屏幕周边的弹性件依次连接，弹性件数量较多，导致安装效率低下。
基于上述问题，本申请实施例提供了一种幕布固定结构100。
请参照图1，幕布固定结构100用于和幕布101的边缘位置固定连接。当幕布101的一侧边缘固定，相对的另一侧通过幕布固定结构100连接，可以将幕布101展开为平展状态，即使幕布101在热胀冷缩的影响下依旧可以保持展开状态。
请参照图1和图2，幕布固定结构100可以包括边框110、固定件120以及调节组件130。其中，固定件120用于和幕布101的边缘固定连接，安装时固定件120与边框110可拆卸连接，调节组件130设置于幕布101与边框110之间，且与边框110弹性连接，并具有固定状态和抵推状态。其 中，处于固定状态的调节组件相对于边框固定连接，处于抵推状态的调节组件抵推于与固定件连接的幕布，从而向幕布提供其展开于边框的支撑侧的张力。
换句话说，当幕布101在与幕布固定结构100安装之前或者安装过程中时，调节组件130可以处于固定状态，此时，调节组件130相对于边框110固定连接。当幕布101与幕布固定结构100安装完成之后，调节组件130处于抵推状态，此时，调节组件130抵推于与固定件120连接的幕布101，从而将幕布101撑开为平展状态且幕布101的承光部分位于边框110的支撑侧113。
具体地，请参照图3，边框110为细长杆状结构，每个边框110均可以包括调节部111、支撑侧113和安装侧115。调节部111用于和调节组件130相配合，以使调节组件130可以沿与边框110长度具有一定夹角的方向伸缩运动。支撑侧113和安装侧115沿边框110的厚度方向相对设置，边框110的安装侧115设置有卡接部1151，卡接部1151用于和固定件120可拆卸连接。
安装时，调节组件130弹性连接于边框110的调节部111，固定件120固定连接于幕布101的边缘位置，固定件120或者幕布101反包于调节组件130且与边框110的卡接部1151可拆卸连接。调节组件130远离调节部111的一侧抵推于与固定件120连接的幕布101，由于调节组件130具有朝向背离边框110一侧的方向的推力，在调节组件130的抵推作用下，幕布101始终处于平展状态，且幕布101的承光部分位于边框110的支撑侧113。
请参照图3和图4所示，位于边框110安装侧115的卡接部1151可以沿边框110的长度方向开设卡槽，固定件120包括第一连接部和第二连接部。其中，第一连接部用于和幕布101的边缘部分固定连接，固定件120与边框110安装后，固定件120的第二连接部与边框110的卡槽相对应的位置可以设置卡扣121，卡扣121卡设于卡槽内。
可选地，卡槽的横截面形状可以为“T”字型，卡扣121的横截面形状与卡槽的横截面形状相匹配。当卡槽为“T”字型槽时，卡扣121的横截面形状也设置为“T”字型。通过卡扣121卡设于卡槽内，使幕布101通过固 定件120与边框110可拆卸连接。
可以理解的是，卡槽和卡扣121的形状不局限于此，也可以为其他形状，只要满足固定件120与卡接部1151卡接即可。工作人员在安装时，只需要将固定件120与边框110卡接即可，以使安装过程简单，降低安装难度，从而提高了安装效率。
进一步地，如图3，边框110还可以包括位于支撑侧113和安装侧115之间的侧面，调节部111设置于侧面上。需要注意的是，这里的侧面包括了内侧面116和外侧面117，且内侧面116和外侧面117相对设置。当幕布101安装于幕布固定结构100上后，边框110中靠近幕布101中间位置的一侧为内侧面116，远离幕布101中间位置的一侧为外侧面117。
可选地，相对于幕布101而言，调节部111设置于边框110的外侧面117，调节组件130弹性连接于调节部111，幕布101反包于调节组件130后通过固定件120与边框110固定连接。当幕布101安装完成后，调节组件130处于抵推状态，此时，调节组件130具有朝向背离幕布101中间位置的方向的运行趋势，从而向幕布101的边缘部分施加抵推力，进而将幕布101撑开为平展状态。
可以理解的是，调节部111除了位于边框110外侧面的位置，还可以设置于边框110的支撑侧113或者安装侧115。当调节部111设置于边框110的支撑侧113或者安装侧115时，调节组件130可以沿与边框110支撑侧113或者安装侧115的表面具有一定夹角的方向运动。
值得注意的是，调节组件130的运动方向，可以包括与边框110的支撑侧113或安装侧115的表面相垂直的方向运动，也可以包括与边框110的支撑侧113或安装侧115的表面倾斜的方向运动，只要可以提供与边框110的支撑侧113或安装侧115的表面相垂直的分力即可。调节部111具体的设置位置不做限制，只要满足调节组件130弹性连接于边框110的调节部111，通过调节组件130相对于边框110的伸缩运动，将幕布101支撑平展即可。
在可选的一实施例中，请参照图5，固定件120可以包括卡接杆123和固定框125。
卡接杆123用于和幕布101的边缘位置固定连接，卡接杆123的延伸方向与幕布101的边缘延伸方向相同。幕布101的边缘部分包裹于卡接杆123，以使幕布101的边缘位置尺寸较大。固定框125扣合连接于边框110的安装侧115，且固定框125与卡接部1151(一并参见图3)围合成卡设空间1253，卡接杆123卡接于该卡设空间1253内，从而将幕布101与边框110可拆卸连接。
安装时，先将调节组件130安装于边框110的调节部111，与幕布101固定连接的固定件120反包于调节组件130或者通过幕布101反包于调节组件130后，将卡接杆123卡设于边框110安装侧115的卡接部1151，然后将固定框125与边框110扣合连接，且使得卡接杆123稳固的卡接于卡设空间1253内。
进一步地，固定框125可以包括扣合部1251和与扣合部1251连接的遮挡部1255。
边框110的卡接部1151开设有卡槽，扣合部1251扣合于卡接部1151的卡槽处且与卡接部1151围合成卡设空间1253。遮挡部1255对应于边框110的外侧面和调节组件130，且用于将边框110和调节组件130进行遮挡。具体地，遮挡部1255弯折成型，且遮挡部1255与边框110的调节部111之间形成供调节组件130沿垂直于边框110长度的方向移动的调节空间1257。
安装时，遮挡部1255遮盖于调节组件130的远离边框110的一侧，扣合部1251扣合于边框110的卡接部1151，遮挡部1255与边框110之间具有一定的调节空间1257，以允许调节组件130在该调节空间1257内上下浮动，从而将幕布101撑开为平展状态。
在该结构的幕布固定结构100中，卡接杆123可以为一根细长杆，卡接杆123与幕布101的边缘位置固定连接。可以理解的是，在可选的其他实施例中，卡接杆123也可以为多根长度较短的杆状结构，多根卡接杆123依次间隔的固定连接在幕布101的边缘位置。
可选地，卡接杆123可以采用玻璃纤维杆。玻璃纤维杆是以玻璃纤维及其制品(玻璃布、带、毡、纱等)作为增强材料，以合成树脂作基体材料 的一种复合材料。玻璃纤维杆具有固定的形状，且能够承受拉应力、弯曲应力、压缩应力以及剪切应力。
安装时，只需要将卡接杆123卡接于卡设空间1253内即可，安装方便，安装效率较高。通过遮挡部1255将边框110的外周遮挡，不仅可以提供调节空间，保护幕布在安装过程中被划伤，也可以提高该幕布固定结构100的美观性。
可选地，固定框125与边框110之间的连接，除了采用扣合方式之外，还可以采用锁紧件127进行固定连接。即在固定框125和边框110上均开设有相对应的锁紧孔，锁紧件127依次穿设于固定框125和边框110上的锁紧孔内，从而将固定框125与边框110固定连接(如图5所示)。
请继续参照图2，调节组件130可以包括滑块131和弹性件133。
滑块131与边框110的调节部111配合，弹性件133连接于滑块131和调节部111之间。安装后，弹性件133受滑块131和幕布101边缘位置的压力，产生反作用力，从而向滑块131提供朝向背离幕布101的中心位置方向的推力。
可选地，请参照图6，调节部111沿边框110的长度方向开设有调节槽1113，滑块131嵌设于调节槽1113内且凸出于调节槽1113的开口端，弹性件133连接于调节槽1113和滑块131之间，且用于向滑块131提供推力。
为了使得弹性件133稳固的安装于调节槽1113和滑块131之间，以使滑块131在弹性件133作用下相对于边框110移动时，弹性件133不会出现偏斜或倾倒的现象。可选地，滑块131靠近调节槽1113的一端开设有凹槽1313，弹性件133包括相对的第一端和第二端，弹性件133的第一端嵌设于凹槽1313，弹性件133的第二端抵接于调节槽1113的槽底。
安装时，先将弹性件133嵌设于滑块131的凹槽1313内，再将滑块131和弹性件133同时嵌设于调节槽1113内。
可选地，滑块131包括嵌设部1311和与嵌设部1311固定连接的抵接部1317。嵌设部1311用于嵌设于调节槽1113，嵌设部1311开设有凹槽1313，弹性件133连接于嵌设部1311的凹槽1313内。抵接部1317凸出于调节槽1113的开口端，抵接部1317用于抵接幕布101的边缘位置以撑开幕布101。
可选地，抵接部1317的厚度尺寸大于嵌设部1311的厚度尺寸，抵接部1317沿厚度方向的两侧均凸出于嵌设部1311沿厚度方向的两侧。当滑块131嵌设于调节槽1113内时，抵接部1317靠近边框110支撑侧113的一侧凸出于边框110支撑侧113的表面，使得幕布101安装于该幕布固定结构100上时，幕布101的两端与抵接部1317的凸起部分接触(如图5)，幕布101承光部分与边框110之间具有间隙，进而使得幕布101的承光部分呈悬空状态，有利于保持幕布101在使用时的平整度，避免了边框110的支撑侧113不平整时对幕布101平面度的影响。当抵接部1317靠近边框110支撑侧113的一侧低于边框110支撑侧113的表面，或者与边框110支撑侧113的表面平齐时，幕布101安装于该幕布固定结构100上，幕布101的承光部分的平整度会与边框110的支撑侧113相贴合，当边框110支撑侧113出现凸起或不平整时，会一定程度上影响幕布101承光部分的平整度。
弹性件133在自然状态下的长度应大于凹槽1313的深度，同时，弹性件133嵌设于凹槽1313内后，弹性件133在自然状态下与嵌设部1311的最大距离应大于调节槽1113的深度。换句话说，弹性件133嵌设于嵌设部1311的凹槽1313内，弹性件133在自然状态下能够凸出于凹槽1313的开口位置；安装有弹性件133的滑块131嵌设于边框110的调节槽1113内，弹性件133在自然状态下，滑块131的至少部分嵌设部1311能够凸出于调节槽1113的开口位置，以使滑块131在弹性件133的作用下可以正常的伸缩运动。
在可选的一实施例中，请参照图7，调节部111设置有导向件1115，导向件1115的延伸方向与边框110的长度方向具有夹角。弹性件133套设于导向件1115上，滑块131的嵌设部1311开设有与导向件1115配合的导向孔1315。安装时，先将弹性件133套设于导向杆，再将滑块131套设于导向件1115，且滑块131能够压缩弹性件133。弹性件133受压产生反作用力，以使滑块131通过弹性件133与边框110弹性连接。
值得注意的是，图7的视角与上述图1至图6的视角相反。即：当幕布101与该幕布固定结构100安装完成后，幕布101的承光部分在图7视 角中位于前侧(朝向读者的一侧)，在图1至图6视角中位于后侧(背对读者的一侧)。
可选地，导向件1115的延伸方向与边框110的长度方向垂直，导向件1115为调节组件130相对于边框110的运动提供导向作用，以使调节组件130的运动方向与边框110的长度方向垂直。
可选地，在图7所示的结构中，弹性件133的长度、导向件1115的长度以及嵌设部1311开设的导向孔1315的深度之间具有如下关系：
第一种情况：弹性件133在自然状态下的长度与导向孔1315的深度之和大于导向件1115的长度尺寸。在该情况下，滑块131的嵌设部1311套设于导向杆且嵌设部1311的端面抵压弹性件133。
第二种情况：弹性件133在自然状态下的长度大于嵌设部1311开设的导向孔1315的深度，同时，弹性件133在自然状态下的长度大于导向件1115的长度尺寸。在该情况下，滑块131的嵌设部1311同时套设于弹性件133和导向件1115。换句话说，滑块131的嵌设部1311通过弹性件133与导向件1115连接后，弹性件133在自然状态下，滑块131的至少部分嵌设部1311能够凸出于调节槽1113的开口位置，以使滑块131在弹性件133的作用下可以正常的伸缩运动。
为了使得幕布101与幕布固定结构100在安装过程中，调节组件130可以在不需要人为施压时依然能够持续的处于压缩的固锁状态，且不会抵推于幕布101的边缘位置。当幕布101与幕布固定结构100安装完成且解锁后，调节组件130就可以抵推于幕布101的边缘位置。进一步地，请参照图8，调节组件130还可以包括定位件135。
具体地，滑块131开设有沿其厚度方向的第一定位孔1319，调节部111开设有与第一定位孔1319相对应的第二定位孔1110。当弹性件133处于压缩状态且弹性件133的压缩量大于或者等于预设压缩量时，第二定位孔1110和第一定位孔1319对齐，定位件135同时插设于第一定位孔1319和第二定位孔1110。需要注意的是，弹性件133的预设压缩量是以滑块131不会抵推幕布101的边缘位置为参考设定的。换句话说，当滑块131压缩弹性件133，使得弹性件133的压缩量等于一定长度时，滑块131的抵接部1317 正好与幕布101的边缘位置接触但没有抵推力，该情况下的压缩量为临界状态的压缩量。设定预设压缩量时，需要满足预设压缩量大于或者等于该临界状态的压缩量。用户或者工作人员在安装时，没有调节组件130对幕布101的抵推力，有利于与幕布101的边缘位置连接的固定件120和边框110的卡接部1151可拆卸连接，安装、拆卸方便，省力，减小装拆难度，有利于提高装拆效率。
请参照图8，定位件135包括插拔销。插拔销同时插设于滑块131的第一定位孔1319和调节部111的第二定位孔1110，以使滑块131与边框110相对固定连接，从而保持了弹性件133的压缩状态。
当幕布101与幕布固定结构100组装完成之后，再将插拔销从滑块131和调节部111中拔出，以释放调节组件130，滑块131在弹性件133的推力下朝向背离调节部111的一侧滑动，进而滑块131的抵接部1317抵推幕布101的边缘位置，以使幕布101被撑开为平展状态，从而获得良好的平面度。
可选地，滑块131的嵌设部1311沿厚度方向开设的第一定位孔1319，和边框110的调节部111沿厚度方向开设的第二定位孔1110的形状、大小应与插拔销的销钉段相匹配。当调节组件130与调节部111配合，且滑块131压缩弹性件133至预设压缩量时，第一定位孔1319正好与第二定位孔1110对齐，插拔销的销钉段***第一定位孔1319和第二定位孔1110内，将滑块131和边框110固定连接，且弹性件133保持于受压状态产生反作用力。
在可选的一实施例中，请参照图9，定位件135可以包括螺钉。螺钉同时插设于滑块131的第一定位孔1319和调节部111的第二定位孔1110，以使滑块131与边框110相对固定连接，从而保持了弹性件133的压缩状态。
具体地，滑块131的第一定位孔1319为通孔，调节部111包括位于调节槽1113两侧的第一侧壁和第二侧壁。其中，第一侧壁位于边框110的安装侧115，第二侧壁位于边框110的支撑侧113，且第一侧壁和第二侧壁上开设有同轴的第二定位孔1110。螺钉从安装侧115***边框110和滑块131，第一侧壁上开设的第二定位孔1110为通孔，第二侧壁上开设的第二定位孔1110为螺纹孔。
安装时，调节组件130与调节部111配合，且滑块131压缩弹性件133至预设压缩量时，第一侧壁和第二侧壁上的第二定位孔1110与滑块131上的第一定位孔1319正好对齐，螺钉依次***第一侧壁上的第二定位孔1110和滑块131上的第一定位孔1319后，与第二侧壁上的第二定位孔1110螺纹连接，从而将滑块131和边框110固定连接，且弹性件133保持于受压状态产生反作用力。当幕布101与幕布固定结构100组装完成之后，再将螺钉拆卸下来，释放调节组件130，滑块131在弹性件133的推力下朝向背离调节部111的一侧滑动，进而滑块131的抵接部1317抵推幕布101的边缘位置，以使幕布101被撑开为平展状态，从而获得良好的平面度。
在可选的一实施例中，请参照图7、图10和图11，定位件135可以包括旋转锁扣。滑块131的嵌设部1311开设有贯通孔，嵌设部1311靠近边框110的安装侧115还开设有与贯通孔连通的第一定位孔1319，调节部111靠近安装侧115的侧壁开设有第二定位孔1110。其中，第一定位孔1319和第二定位孔1110均为长圆孔。与长圆孔相对应的，旋转锁扣包括非圆形的锁紧段。
安装时，调节组件130与调节部111配合，且滑块131压缩弹性件133至预设压缩量时，调节部111的第二定位孔1110与滑块131上的第一定位孔1319正好对齐，旋转锁扣的锁紧段同时插设于滑块131的第一定位孔1319和调节部111的第二定位孔1110后嵌设于滑块131的贯通孔内，然后相对于边框110旋转该旋转锁扣，以使旋转锁扣的锁紧段旋转90°与贯通孔的侧壁抵持，防止旋转锁扣从滑块131的贯通孔内脱出。滑块131与边框110相对固定连接，从而保持了弹性件133的压缩状态，且弹性件133产生反作用力。
当幕布101与幕布固定结构100组装完成之后，再将旋转锁扣旋转90°，以使旋转锁扣的锁紧段可以从滑块131上的第一定位孔1319和调节部111的第二定位孔1110中退出，释放调节组件130。滑块131在弹性件133的推力下朝向背离调节部111的一侧滑动，进而滑块131的抵接部1317抵推幕布101的边缘位置，以使幕布101被撑开为平展状态，从而获得良好的平面度。
可选地，弹性件133可以包括橡胶条、条形弹片、压簧、橡皮筋以及磁性件等。当弹性件133为橡胶条、条形弹片、压簧以及橡皮筋中的其中一种时，弹性件133的一端与调节部111连接，另一端与滑块131连接；当弹性件133为磁性件时，磁性件包括相对设置的两个同性磁铁，其中一个磁铁固定设置于调节部111，另外一个磁铁固定设置于滑块131。由于两个磁铁同性且相对设置，该两个磁铁之间会产生排斥力，从而抵推滑块131相对于调节部111向外运动。
幕布101安装于本申请实施例提供的幕布固定结构100的安装过程如下：
首先，将幕布101的一侧边缘固定，幕布101另一侧的边缘位置与固定件120固定连接；
然后，将调节组件130装配于边框110的调节部111上，同时压缩调节组件130，以使调节组件130中的弹性件133处于稳定的受压状态且压缩量大于或者等于预设压缩量，使调节组件130相对于边框110相对固定。
再次，将连接有幕布101的固定件120反包于调节组件130后与边框110的安装侧115的卡接部1151可拆卸连接。
最后，释放调节组件130，以使滑块131在弹性件133的推力下抵推于幕布101的边缘位置，从而将幕布101撑开为平展状态。
本申请实施例提供的幕布固定结构100便于幕布101安装，且结构简单，降低了安装过程中的难度，从而有利于提高安装效率。另外，调节组件130可以随幕布101的变形而发生移动，从而使得幕布101可以始终处于平展状态，有利于补偿幕布101由于热胀冷缩而造成的变形量。
请参照图12，本申请实施例还提供了一种幕布安装支架200，幕布安装支架200可以包括幕布固定结构100。其中，幕布固定结构100的数量可以为多个，全部边框110首尾依次连接，且围合成中空的框体结构。每个幕布固定结构100中的边框110均包括朝向框体的中心位置的内侧面和背离框体的中心位置的外侧面，调节部111位于边框110的外侧面。
安装时，幕布101固定连接于幕布安装支架200的内框中，在幕布安装支架200的作用下，幕布101可以始终处于完全展开且不松弛的状态。
可以理解的是，多个边框110依次首尾连接后形成的框体，具有沿厚度方向的第一侧和第二侧，其中，第一侧和第二侧背对设置。且幕布安装支架200的第一侧与边框110的支撑侧113相对应，幕布安装支架200的第二侧与边框110的安装侧115相对应。安装时，幕布101位于框体的第一侧，固定件120可拆卸地连接于框体的第二侧。
在一般情况下，幕布101为长方形，包括四条边。与幕布101相对应的框体也为长方形，即幕布固定结构100的数量可以包括四个，四个边框110依次首尾连接，相邻两个边框110在连接处可以通过转角连接件连接。值得注意的是，幕布101的形状不局限于长方形，幕布101的边不局限于四条边，本申请实施例提供的幕布安装支架200中的幕布固定结构100的数量与幕布101的边数相等且一一对应。一组幕布固定结构100与幕布101的一个边连接，从而将幕布101从各个方向撑开。
本申请实施例提供的幕布安装支架200通过从周向将幕布101固定，以使幕布101的每条边缘均通过幕布固定结构100撑开，有利于获得良好的平面度。
请参照图13，本申请实施例还提供了一种幕布装置300，幕布装置300可以包括幕布101和上述的幕布固定结构100，或者幕布装置300可以包括幕布101和上述的幕布安装支架200。
其中，请参照图14，幕布101可以包括幕布本体102和连接于幕布本体102边缘的反包布103。
幕布本体102为投影设备的图像承接部件，幕布本体102与固定件120之间通过反包布103固定连接。其中，反包布103包括相对的第一边缘和第二边缘，幕布本体102的周向与该反包布103的第一边缘固定连接，反包布103的第二边缘与固定件120固定连接。安装时，幕布本体102位于边框110的支撑侧113，反包布103反包于边框110和调节组件130上，以使幕布本体102和固定件120分别位于框体相对的两侧，然后将固定件120与边框110的卡接部1151可拆卸连接。
可选地，反包布103的第一边缘与幕布本体102可以通过粘接方式固定连接。可以理解的是，在可选的其他实施例中，反包布103的第一边缘 也可以采用缝合、铆接等方式与幕布本体102的边缘固定连接，本申请对此不作限制，只要不破坏幕布本体102的主显示面的方式均可。
可选地，固定件120固定于反包布103的第二边缘是指：固定件120可以为一个整体的结构和固定件120的数量为多个两种情况。当固定件120为第一种情况时，整体结构的固定件120为细长杆状，其固定连接于反包布103沿长度方向的整个第二边缘，固定件120上可以设置至少两个卡扣121，卡扣121和边框110的卡槽卡接，操作方便。当固定件120为第二种情况时，多个固定件120依次间隔连接于反包布103上，每个固定件120上均设置有卡扣121。安装时，需要将每个固定件120与边框110的卡槽卡接。
幕布本体102可以采用PC材料(Polycarbonate，聚碳酸酯)、PVC材料(Polyvinyl chloride,聚氯乙烯)或PET材料(Polyethylene terephthalate，聚乙烯对苯二酸酯)中的任意一种或多种制备而成，优选的，幕布本体为软幕。幕布本体102的周向边缘设置有用于和固定件120连接的反包布103，反包布103可以采用尼龙布，通过幕布安装支架200可以向幕布101的周向提供有效的张紧力，以使幕布101获得良好的平面度。且幕布101安装于该幕布安装支架200的安装过程简单方便，减小安装难度，有利于提高安装效率。用户自己也可以快速安装，无需专业的工作人员进行安装，弱化了安装人员的专业性要求。
本申请实施例提供的幕布装置300的安装过程如下：
首先，将全部边框110依次首尾连接形成框体，在安装过程中需要注意将每个边框110的调节部111朝向外侧，以使调节组件130安装于调节部111后可以朝向背离幕布101的中心位置的方向抵推幕布101的反包布103。
然后，将调节组件130与边框110的调节部111一一对应的连接，且使得调节组件130处于压缩状态，同时与边框110相对固定。
再次，将与幕布本体102的周向连接的反包布103与其相对应的固定件120固定连接，将反包布反包于调节组件130后，将固定件120与其相对应的边框110的卡接部1151卡接。
最后，释放调节组件130，以使调节组件130抵推与幕布本体102固定连接的反包布103，从而将幕布本体102撑开为平展状态。
本申请实施例还提供了一种投影显示***，该投影显示***可以包括投影仪和上述的幕布装置300。其中，投影仪用于向幕布101投射图像，幕布101的幕布本体102能够始终处于平展状态，不易因为热胀冷缩而影响成像效果。
本申请实施例提供的幕布固定结构100、安装支架、幕布装置300和投影显示***，结构简单，幕布101在安装固定时拆装方便，有效的降低了拆装难度，在使幕布101获得良好的平面度的基础上，提高拆装效率；另外，降低了整体重量，便于运输和安装过程，简化安装流程，降低了对安装人员的专业性要求，节省安装成本。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不驱使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (12)

  1. 一种幕布固定结构，其特征在于，包括：
    边框，所述边框包括调节部、背对设置的支撑侧和安装侧，所述安装侧上设置有卡接部；
    固定件，用于和幕布的边缘固定连接，所述固定件与所述卡接部可拆卸连接；以及
    调节组件，所述调节组件设置于所述幕布与所述边框之间，并与所述边框弹性连接，所述调节组件具有固定状态和抵推状态，处于所述固定状态的所述调节组件相对于所述边框固定连接，处于所述抵推状态的所述调节组件抵推于与所述固定件连接的幕布，以提供所述幕布展开于所述边框的支撑侧的张力。
  2. 根据权利要求1所述的幕布固定结构，其特征在于，所述卡接部沿所述边框的长度方向开设有卡槽，所述固定件包括第一连接部和第二连接部，所述第一连接部用于和幕布的边缘固定连接，所述第二连接部设置有卡扣，所述卡扣卡设于所述卡槽。
  3. 根据权利要求1所述的幕布固定结构，其特征在于，所述固定件包括卡接杆和固定框，所述卡接杆用于和幕布的边缘固定连接，所述固定框扣合于所述安装侧，且与所述卡接部围合成卡设空间，所述卡接杆卡接于所述卡设空间。
  4. 根据权利要求3所述的幕布固定结构，其特征在于，所述固定框包括扣合部和与所述扣合部连接的遮挡部，所述卡接部开设有卡槽，所述扣合部扣合于所述卡接部且形成所述卡设空间，所述遮挡部遮盖于所述边框，且与所述调节部之间形成供所述调节组件沿垂直于所述边框长度的方向移 动的调节空间。
  5. 根据权利要求1所述的幕布固定结构，其特征在于，所述边框还包括位于所述支撑侧和所述安装侧之间的侧面，所述调节部设置于所述侧面，当所述调节组件处于抵推状态时，所述调节组件具有朝向背离所述调节部的方向的运动趋势。
  6. 根据权利要求1-5任一项所述的幕布固定结构，其特征在于，所述调节组件包括滑块和弹性件，所述滑块与所述调节部配合，所述弹性件连接于所述滑块和所述调节部之间，且用于向所述滑块提供推力。
  7. 根据权利要求6所述的幕布固定结构，其特征在于，所述调节部开设有调节槽，所述滑块嵌设于所述调节槽且凸出于所述调节槽的开口端，所述滑块靠近所述调节槽的一端开设有凹槽，所述弹性件的一端嵌设于所述凹槽，另一端抵接于所述调节槽的槽底。
  8. 根据权利要求6所述的幕布固定结构，其特征在于，所述调节部设置有导向件，所述导向件的延伸方向与所述边框的长度方向具有夹角，所述滑块开设有与所述导向件配合的导向孔，所述弹性件和所述滑块依次套设于所述导向件，且所述滑块抵压于所述弹性件。
  9. 根据权利要求6所述的幕布固定结构，其特征在于，所述调节组件还包括定位件，所述滑块开设有沿其厚度方向的第一定位孔，所述调节部开设有与所述第一定位孔相对应的第二定位孔；
    当所述弹性件处于压缩状态，且压缩量大于或者等于预设压缩量时，所述第二定位孔和所述第一定位孔对齐，所述定位件同时插设于所述第一 定位孔和所述第二定位孔。
  10. 一种幕布安装支架，其特征在于，包括权利要求1-9任一项所述的幕布固定结构，所述幕布固定结构的数量为多个，全部所述边框首尾依次连接且围合成中空的框架结构；
    所述幕布安装支架包括背对的第一侧和第二侧，所述第一侧与所述边框的支撑侧相对应，所述第二侧与所述边框的安装侧相对应。
  11. 一种幕布装置，其特征在于，包括:
    权利要求1-9任一项所述的幕布固定结构，或者权利要求10所述的幕布安装支架；以及
    幕布，所述幕布包括幕布本体和连接于幕布本体边缘的反包部，所述幕布本***于所述边框的支撑侧，所述反包部反包于所述调节组件，所述反包部远离所述幕布本体的一侧与所述固定件固定连接，以使所述幕布本体和所述固定件分别位于所述边框背对的两侧。
  12. 一种投影显示***，其特征在于，包括：
    投影仪；以及
    权利要求11所述的幕布装置，所述投影仪用于向所述幕布投射图像。
PCT/CN2021/116365 2020-09-08 2021-09-03 幕布固定结构、安装支架、幕布装置和投影显示*** WO2022052866A1 (zh)

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