Window curtain shading edge strip

Abstract

The embodiment of the invention provides a curtain shading edge strip which comprises a first edge strip, a second edge strip and a bonding layer, the first edge strip comprises a first bonding piece and a first shading piece, and the first shading piece and the first bonding piece intersect and are connected into a whole at a preset non-zero angle; the second edge strip comprises a second sticking sheet and a second anti-dazzling screen which is intersected with the second sticking sheet at a preset non-zero angle and is connected with the second sticking sheet into a whole; the first edge strip and the second edge strip abut against each other through the first anti-dazzling screen and the second anti-dazzling screen and slide relatively in the length direction so as to adjust the overall length of the first edge strip and the second edge strip. When the overall length is adjusted to be matched with the length of a frame corresponding to the window frame, the first pasting piece and the second pasting piece are pasted to the inner side wall of the frame through the pasting layer. The device is simple in overall structure, convenient to manufacture, low in cost and convenient and fast to use and operate.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of curtains, and in particular to a curtain blackout strip. Background Art

[0002] After curtains are assembled into their corresponding window frames, gaps often exist between the top and side edges of the curtains and the corresponding borders of the window frame, allowing light to pass through. To improve light-blocking performance, these gaps require further shielding with blackout strips. Furthermore, to accommodate the varying internal dimensions of different window frames, manufacturers have introduced retractable blackout strips that can be adjusted within a certain range. Combined with a variety of design specifications, these strips can effectively meet the light-blocking needs of window frames of varying internal dimensions.

[0003] A retractable shading strip comprises a first retractable strip and a positioning ring, wherein the top of the first retractable strip is fixedly connected to a first fixed block, and a rotating shaft is provided inside the first fixed block, the positioning ring is provided on the outer wall of the rotating shaft, and the end of the positioning ring is fixedly connected to a second fixed block, the interior of the second fixed block is threadedly connected to a fixing screw, and the outer wall of the fixing screw is threadedly connected to a nut, a return spring is fixed to the top inner wall of the first retractable strip, and the bottom end of the return spring is connected to the second retractable strip, the second retractable strip is provided inside the first retractable strip, and the bottom outer wall of the second retractable strip is fixed to a base. During use, the diameter of the positioning ring is adjusted according to the thickness of the curtain rod, the fixing screw is screwed into the interior of the nut, and the fixing screw is tightened. The fixing screw makes the outer wall of the positioning ring tightly fit the outer wall of the curtain rod, the first retractable strip is level with the two sides of the curtain, and the two sides of the curtain are placed behind the first retractable strip so that the front of the first retractable strip can press against the front of the curtain, and the side of the first retractable strip can block light from the gap between the curtain and the wall, thereby achieving a shading effect without damaging the wall.

[0004] However, the inventors found during implementation that the existing retractable shading strip structure is too complex and inconvenient to use. Moreover, it relies on a curtain rod during assembly and is not applicable to other curtains without curtain rods. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a curtain blackout strip that can effectively simplify the structure, facilitate assembly, and be applicable to various curtains.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides the following technical solutions: a curtain shading edge strip, comprising: a first edge strip, a second edge strip and an adhesive layer, the first edge strip comprising a first adhesive piece and a first shading piece intersecting and connected to the first adhesive piece at a predetermined non-zero angle; the second edge strip comprising a second adhesive piece and a second shading piece intersecting and connected to the second adhesive piece at a predetermined non-zero angle; the first edge strip and the second edge strip are adjusted in overall length by the first shading piece and the second shading piece abutting against each other and sliding relative to each other in the length direction, and when the overall length is adjusted to match the length of the frame corresponding to the window frame, the first adhesive piece and the second adhesive piece are adhered to the inner wall of the frame by the adhesive layer.

[0007] Furthermore, the first light shielding sheet is formed by bending and extending from one side of the first adhesive sheet, and the second light shielding sheet is formed by bending and extending from one side of the second adhesive sheet.

[0008] Furthermore, the second side strip is stacked on the inner side of the first side strip, and the second light shielding sheet abuts against the first light shielding sheet, and the second adhesive sheet abuts against the first adhesive sheet.

[0009] Furthermore, the first side strip is provided with a first sliding connection portion extending along the length direction of the first side strip, and the second side strip is correspondingly provided with a second sliding connection portion extending along the length direction of the second side strip, and the first side strip and the second side strip are correspondingly slidably connected by the corresponding sliding connection of the first sliding connection portion and the second sliding connection portion.

[0010] Further, the first sliding portion is a necking groove with a slot width smaller than the slot inner width and open at both ends, and the second sliding portion is a convex rib with a cross-section adapted to the cross-section of the necking groove and a necking portion adapted to the slot of the necking groove; or, the second sliding portion is a necking groove with a slot width smaller than the slot inner width and open at both ends, and the first sliding portion is a convex rib with a cross-section adapted to the cross-section of the necking groove and a necking portion adapted to the slot of the necking groove.

[0011] Furthermore, the first sliding portion is provided at an inner corner of a connecting portion between the first light shielding sheet and the first adhesive sheet, and the second sliding portion is provided at an outer corner of a connecting portion between the second light shielding sheet and the second adhesive sheet.

[0012] Furthermore, the adhesive layer includes a first adhesive layer attached to the outer surface of the first adhesive sheet and a second adhesive layer attached to the outer surface of the second adhesive sheet, and the thickness of the second adhesive layer is the sum of the thicknesses of the first adhesive layer and the first adhesive sheet; or, the adhesive layer includes a second adhesive layer attached to the outer surface of the second adhesive sheet and the thickness of which is adapted to the thickness of the first adhesive sheet, and a first adhesive layer correspondingly attached to the outer surfaces of the first adhesive sheet and the second adhesive layer.

[0013] Furthermore, a surface of the first shading sheet facing away from the first adhesive sheet and a surface of the second shading sheet facing away from the second adhesive sheet abut against each other to form a reference surface for relative sliding, and the outer surfaces of the first adhesive sheet and the second adhesive sheet facing the inner side wall of the frame are respectively flush with each other, and the adhesive layer includes a first adhesive layer attached to the outer surface of the first adhesive sheet and a second adhesive layer attached to the outer surface of the second adhesive sheet.

[0014] Furthermore, a slot is formed inside the first side strip, which passes through the first side strip along the length direction and has a notch on the side surface of the first adhesive sheet for being pasted to the frame. The slot has a first slot portion located inside the first light-shielding sheet and a second slot portion located inside the first adhesive sheet and connected to the first slot portion and provided with the notch. The second side strip is inserted into the slot, the second light-shielding sheet is placed in the first slot portion, and the second adhesive sheet is placed in the second slot portion with its outer surface exposed from the notch and flush with the outer surface of the first adhesive sheet.

[0015] Furthermore, the first light-shielding sheet is connected to the middle part of the first adhesive sheet and the two extend in the same direction to form a T-shape as a whole, the second light-shielding sheet is connected to the middle part of the second adhesive sheet and the two extend in the same direction to form a T-shape as a whole, or the second light-shielding sheet is bent and extended from one side of the second adhesive sheet, and a slot is formed inside the first side strip, which passes through the first side strip along the length direction and has a notch on the side surface of the first adhesive sheet for being pasted to the frame, and the slot has a first slot portion located inside the first light-shielding sheet and a second slot portion located inside the first adhesive sheet and connected to the first slot portion and provided with the notch, the second side strip is inserted into the slot, the second light-shielding sheet is placed in the first slot portion, the second adhesive sheet is placed in the second slot portion and the outer surface is exposed from the notch and is flush with the outer surface of the first adhesive sheet.

[0016] After adopting the above technical solution, the embodiment of the present invention has at least the following beneficial effects: the embodiment of the present invention adopts a first side strip and a second side strip of relatively short length to cooperate with each other, and the first shading sheet and the second shading sheet abut against each other and slide relative to each other in the length direction to adjust the overall length of the first side strip and the second side strip. When the overall length is adapted to the frame length corresponding to the window frame, the first adhesive sheet and the second adhesive sheet are adhered to the inner wall of the frame by the adhesive layer, thereby completing the assembly of the shading side strips. Not only is the overall structure simple, easy to manufacture, and low in cost, but it is also convenient to use and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an optional embodiment of a curtain shading edge strip installed on a window frame.

[0018] Figure 2 This is a schematic structural diagram of a first side strip and a second side strip of an optional embodiment of a curtain shading side strip of the present invention being plugged into each other.

[0019] Figure 3 This is a schematic cross-sectional structural diagram of a first edge strip of an optional embodiment of a curtain shading edge strip of the present invention.

[0020] Figure 4 This is a schematic cross-sectional structural diagram of a first edge strip of an optional embodiment of a curtain shading edge strip of the present invention.

[0021] Figure 5 This is a schematic cross-sectional structural diagram of an optional embodiment of a curtain blackout strip in an assembled state.

[0022] Figure 6 It is a partially enlarged schematic diagram of an optional embodiment of the curtain blackout strip of the present invention pasted on a window frame.

[0023] Figure 7 It is a schematic cross-sectional structural diagram of another optional embodiment of the curtain blackout strip of the present invention.

[0024] Figure 8 This is a schematic cross-sectional view of another optional embodiment of the curtain blackout strip of the present invention.

[0025] Figure 9 The figure is a schematic cross-sectional view of another optional embodiment of the curtain shading edge strip of the present invention.

[0026] Figure 10 The figure is a schematic cross-sectional view of another optional embodiment of the curtain shading edge strip of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following exemplary embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. Moreover, the embodiments and features of the embodiments of the present invention may be combined with each other unless there is a conflict.

[0028] like Figures 1-10 As shown, an optional embodiment of the present invention provides a curtain blackout strip, comprising: a first strip 1, a second strip 3, and an adhesive layer 5. The first strip 1 includes a first adhesive sheet 10 and a first blackout sheet 12 intersecting and integrally connected to the first adhesive sheet 10 at a predetermined non-zero angle; the second strip 3 includes a second adhesive sheet 30 and a second blackout sheet 32 ​​intersecting and integrally connected to the second adhesive sheet 30 at a predetermined non-zero angle. The first strip 1 and the second strip 3 are configured such that the first blackout sheet 12 and the second blackout sheet 32 ​​abut against each other and slide relative to each other in the length direction, thereby adjusting the overall length of the first strip 1 and the second strip 3. When the overall length is adjusted to match the length of the frame 70 corresponding to the window frame 7, the adhesive layer 5 adheres the first strip 10 and the second strip 30 to the inner wall of the frame 70.

[0029] In the embodiment of the present invention, the first side strip 1 and the second side strip 3 of relatively short length cooperate with each other, and the first shading sheet 12 and the second shading sheet 32 ​​abut against each other and slide relative to each other in the length direction to adjust the overall length of the first side strip 1 and the second side strip 3. When the overall length matches the length of the frame corresponding to the window frame 7, the first adhesive sheet 10 and the second adhesive sheet 30 are adhered to the inner wall of the frame 70 by the adhesive layer 5, thus completing the assembly of the shading side strips. Not only is the overall structure simple, easy to manufacture, and low in cost, but it is also easy to use and operate. In specific implementation, double-sided tape or foam tape can be used as the adhesive layer 5. It can be understood that, if Figure 1 As shown, the shading strips are usually assembled between the two opposite sides of the curtain 9 and the vertical frames on the two opposite sides of the window frame 7. If necessary, they can also be set between the top of the curtain 9 and the upper frame of the top of the window frame 7. The shading strips provided in the embodiments of the present invention can be applied to various curtains such as blinds, roller blinds, Roman shades, cellular shades, etc.

[0030] In an optional embodiment of the present invention, Figures 3 to 5As shown, the first light shielding sheet 12 is formed by bending and extending from a side edge of the first adhesive sheet 10, and the second light shielding sheet 32 ​​is formed by bending and extending from a side edge of the second adhesive sheet 30. The first side strip 1 and the second side strip 3 provided in this embodiment both have a generally L-shaped cross-section, which facilitates manufacturing and allows for stacking for easy transportation and use. In practice, the first light shielding sheet 12 and the first adhesive sheet 10, as well as the second light shielding sheet 32 ​​and the second adhesive sheet 30, are preferably designed to intersect perpendicularly. However, non-perpendicular intersections are also feasible if necessary.

[0031] In another optional embodiment of the present invention, Figure 2 and Figure 5 As shown, the second side strip 3 is stacked on the inner side of the first side strip 1, and the second light-shielding sheet 32 ​​abuts the first light-shielding sheet 12, while the second adhesive sheet 30 abuts the first adhesive sheet 10. This embodiment provides a specific combination method of forming a light-shielding side strip by cooperating with the first side strip 1 and the second side strip 3. By directly stacking the second side strip 3 on the inner side of the first side strip 1, and abutting the second light-shielding sheet 32 ​​and the second adhesive sheet 30 against the first light-shielding sheet 12 and the first adhesive sheet 10, respectively, the second side strip 3 can effectively guide the side strip during relative sliding. The structure is simple and easy to operate during assembly and adjustment.

[0032] In another optional embodiment of the present invention, Figures 3 to 5 As shown, the first side strip 1 is provided with a first sliding portion 14 extending along the length of the first side strip 1, and the second side strip 3 is correspondingly provided with a second sliding portion 34 extending along the length of the second side strip 3. The first sliding portion 14 and the second sliding portion 34 are correspondingly slidably connected, thereby slidably connecting the first side strip 1 and the second side strip 3. This embodiment also provides better guidance for the relative sliding of the first side strip 1 and the second side strip 3 by providing the mutually cooperating first sliding portion 14 and second sliding portion 34. In a specific implementation, the first sliding portion 14 can be a sliding groove with open ends, and the second sliding portion 34 can be a rib slidably placed within the sliding groove. In addition, the sliding groove and the rib can also be designed to interchange their positions.

[0033] In another optional embodiment of the present invention, Figures 3 to 5As shown, the first sliding portion 14 is a narrowing groove with a groove width smaller than the groove inner width and open at opposite ends, and the second sliding portion 34 is a convex rib with a cross-section adapted to the cross-section of the narrowing groove and a necked portion adapted to the groove opening of the narrowing groove; or the second sliding portion 34 is a narrowing groove with a groove width smaller than the groove inner width and open at opposite ends, and the first sliding portion 14 is a convex rib with a cross-section adapted to the cross-section of the narrowing groove and a necked portion adapted to the groove opening of the narrowing groove. This embodiment provides two specific structures of the first sliding portion 14 and the second sliding portion 34, respectively, which slide together through the narrowing groove and the convex rib with the necked portion, thereby not only achieving relative sliding of the first side strip 1 and the second side strip 3 in the longitudinal direction, but also preventing the convex rib from falling out through the groove opening of the narrowing groove through the cooperation between the groove opening and the necked portion of the narrowing groove, thereby effectively ensuring that the first side strip 1 and the second side strip 3 will not be loosened from each other. As for forming openings at opposite ends of the shrinking groove, it is convenient for the rib to slide out from either end of the shrinking groove to adjust the overall length, for example Figure 1 As shown, the shading strip on the left side is the second side strip 3 extending from the lower end of the first side strip 1, while the shading strip on the right side is the second side strip 3 extending from the upper end of the first side strip 1; in addition, such a design also makes it convenient to insert a second side strip 3 (or first side strip 1) with a convex rib from each opposite end of the first side strip 1 (or second side strip 3) with a shrinking groove when the length of the frame corresponding to the inner cavity of the window frame 5 is relatively large, and thus a sufficient overall length can be obtained to match the length of the frame 70 by connecting them in sequence, so that there is no need to design the first side strip 1 and the second side strip 3 to be too long, which is convenient for transportation.

[0034] In another optional embodiment of the present invention, Figures 3 to 5 As shown, the first sliding portion 14 is disposed at the inner corner of the junction between the first light-shielding sheet 12 and the first adhesive sheet 10, and the second sliding portion 34 is disposed at the outer corner of the junction between the second light-shielding sheet 32 ​​and the second adhesive sheet 30. By disposing the first sliding portion 14 and the second sliding portion 34 at the inner corner of the junction between the first light-shielding sheet 12 and the first adhesive sheet 10 and the outer corner of the junction between the second light-shielding sheet 32 ​​and the second adhesive sheet 30, respectively, this embodiment effectively utilizes the relatively thick nature of these junctions, ensuring sufficient structural strength to achieve a sliding connection between the first sliding portion 14 and the second sliding portion 34.

[0035] In another optional embodiment of the present invention, Figure 6As shown, the adhesive layer 5 includes a first adhesive layer 50 attached to the outer surface of the first adhesive sheet 10 and a second adhesive layer 52 attached to the outer surface of the second adhesive sheet 30. The thickness of the second adhesive layer 52 is the sum of the thicknesses of the first adhesive layer 50 and the first adhesive sheet 10. Alternatively, as Figure 4 As shown, the adhesive layer 5 includes a second adhesive layer 52 attached to the outer surface of the second adhesive sheet 30 and having a thickness that matches the thickness of the first adhesive sheet 10, and a first adhesive layer 50 attached to the outer surfaces of the first adhesive sheet 10 and the second adhesive layer 52, respectively. This embodiment provides two structural designs for the adhesive layer 5, allowing for flexible selection during implementation. Both solutions can effectively adhere the first adhesive sheet 10 and the second adhesive sheet 30 to the corresponding frame 70.

[0036] In another optional embodiment of the present invention, Figure 7 As shown, the surface of the first light-shielding sheet 12 facing away from the first adhesive sheet 10 and the surface of the second light-shielding sheet 32 ​​facing away from the second adhesive sheet 30 abut against each other to form a reference surface for relative sliding. The outer surfaces of the first adhesive sheet 10 and the second adhesive sheet 32, respectively, facing the inner sidewall of the frame 70, are flush with each other. The adhesive layer 5 includes a first adhesive layer 50 affixed to the outer surface of the first adhesive sheet 10 and a second adhesive layer 52 affixed to the outer surface of the second adhesive sheet 32. In this embodiment, the first adhesive sheet 10 and the second adhesive sheet 30 are respectively on opposite sides of the reference surface. After being affixed to the frame 70, the structural stability is improved. When the first light-shielding sheet 12 and / or the second light-shielding sheet 32 ​​are pushed by an external force, they are less likely to become loose. Moreover, the structures of the first side strip 1 and the second side strip 3 can be identical, thereby facilitating manufacturing and reducing costs.

[0037] In another optional embodiment of the present invention, Figure 8As shown, a slot 16 is formed inside the first side strip 1, which passes through the first side strip 1 along the length direction and has a notch on the side surface of the first adhesive sheet 10 for being pasted to the frame. The slot 16 has a first groove portion 160 located inside the first light-shielding sheet 12 and a second groove portion 162 located in the first adhesive sheet 10 and connected to the first groove portion 160 and provided with the notch. The second side strip 3 is inserted into the slot 16, the second light-shielding sheet 32 ​​is placed in the first groove portion 160, and the second adhesive sheet 30 is placed in the second groove portion 162 with the outer surface exposed from the notch and flush with the outer surface of the first adhesive sheet 10. In this embodiment, a slot 16 is formed inside the first side strip 1 to open a notch on one side surface of the first adhesive sheet 10 for adhering to the frame, thereby facilitating the insertion of the second side strip 3 into the slot 16 and realizing relative sliding adjustment between the first side strip 1 and the second side strip 3. The second adhesive sheet 30 is exposed from the notch of the second groove portion 162 and is flush with the outer surface of the first adhesive sheet 10, and it is also convenient to use the adhesive layer 5 to perform the adhering operation.

[0038] In another optional embodiment of the present invention, the first light shielding sheet 12 is connected to the middle of the first adhesive sheet 10 and the two extend in the same direction to form a T-shape as a whole, and the second light shielding sheet 32 ​​is connected to the middle of the second adhesive sheet 30 and the two extend in the same direction to form a T-shape as a whole (such as Figure 9 As shown) or the second light shielding sheet 32 ​​is formed by bending and extending from one side of the second adhesive sheet 30 (as shown Figure 10As shown), a slot 16 is formed inside the first side strip 1, which passes through the first side strip 1 along the length direction and has a notch on the side surface of the first adhesive sheet 10 for being pasted to the frame. The slot 16 has a first groove portion 160 located inside the first light-shielding sheet 12 and a second groove portion 162 located in the first adhesive sheet 10 and connected to the first groove portion 160. The second side strip is inserted into the slot 16, the second light-shielding sheet 32 ​​is placed in the first groove portion 160, and the second adhesive sheet 30 is placed in the second groove portion 162 with its outer surface exposed from the notch and flush with the outer surface of the first adhesive sheet 10. In this embodiment, the first side strip 1 is designed to be T-shaped, and the second side strip 3 can also be T-shaped or L-shaped, formed by the second shading sheet 32 ​​being bent and extended from one side of the second adhesive sheet 30, and a slot 16 is formed inside the first side strip 1, so as to facilitate the insertion of the second side strip 3 into the slot 16 and realize the relative sliding adjustment of the first side strip 1 and the second side strip 3. The second adhesive sheet 30 is exposed from the notch of the slot 16 and the outer surface is flush with the outer surface of the first adhesive sheet 10, thereby facilitating the use of the adhesive layer 5 for pasting; moreover, the first side strip 1 is T-shaped, and the first shading sheet 12 is connected to the middle part of the first adhesive sheet 10, so the structural stability is better. When the first shading sheet 12 and / or the second shading sheet 32 ​​are pushed by external force, they are not easy to loosen.

[0039] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many variations without departing from the creative purpose of the present invention and the scope of protection of the claims, which all fall within the scope of protection of the present invention.

Claims

1. A curtain shading edge strip, comprising a first edge strip and a second edge strip, characterized in that: The first side strip includes a first adhesive sheet and a first shading sheet that is connected to the first adhesive sheet at a predetermined non-zero angle; the second side strip includes a second adhesive sheet and a second shading sheet that is connected to the second adhesive sheet at a predetermined non-zero angle; the first side strip and the second side strip are adjusted in overall length by the first shading sheet and the second shading sheet abutting against each other and sliding relative to each other in the length direction, and the curtain shading side strip also includes an adhesive layer that sticks the first adhesive sheet and the second adhesive sheet to the inner side wall of the frame when the overall length is adjusted to match the length of the frame corresponding to the window frame.

2. The curtain blackout strip according to claim 1, wherein: The first light shielding sheet is formed by bending and extending from one side of the first adhesive sheet, and the second light shielding sheet is formed by bending and extending from one side of the second adhesive sheet.

3. The curtain blackout strip according to claim 2, wherein: The second side strip is stacked on the inner side of the first side strip, and the second light shielding sheet abuts against the first light shielding sheet, and the second adhesive sheet abuts against the first adhesive sheet.

4. The curtain blackout strip according to claim 3, wherein: The first side strip is provided with a first sliding connection portion extending along the length direction of the first side strip, and the second side strip is correspondingly provided with a second sliding connection portion extending along the length direction of the second side strip. The first sliding connection portion and the second sliding connection portion are correspondingly slidably connected to form the first side strip and the second side strip.

5. The curtain blackout strip according to claim 4, wherein: The first sliding connection portion is a necking groove with a groove opening width smaller than the groove inner width and open at both ends; the second sliding connection portion is a convex rib with a cross-section adapted to the cross-section of the necking groove and a necking portion adapted to the groove opening of the necking groove; or, the second sliding connection portion is a necking groove with a groove opening width smaller than the groove inner width and open at both ends; the first sliding connection portion is a convex rib with a cross-section adapted to the cross-section of the necking groove and a necking portion adapted to the groove opening of the necking groove.

6. The curtain blackout strip according to claim 4 or 5, characterized in that: The first sliding portion is arranged at an inner corner of a connecting portion between the first light shielding sheet and the first adhesive sheet, and the second sliding portion is arranged at an outer corner of a connecting portion between the second light shielding sheet and the second adhesive sheet.

7. The curtain blackout strip according to claim 3, wherein: The adhesive layer includes a first adhesive layer attached to the outer surface of the first adhesive sheet and a second adhesive layer attached to the outer surface of the second adhesive sheet, and the thickness of the second adhesive layer is the sum of the thicknesses of the first adhesive layer and the first adhesive sheet; or, the adhesive layer includes a second adhesive layer attached to the outer surface of the second adhesive sheet and the thickness of which is adapted to the thickness of the first adhesive sheet, and a first adhesive layer correspondingly attached to the outer surfaces of the first adhesive sheet and the second adhesive layer.

8. The curtain blackout strip according to claim 2, wherein: The side surface of the first shading sheet facing away from the first adhesive sheet and the side surface of the second shading sheet facing away from the second adhesive sheet abut against each other to form a reference surface for relative sliding. The first adhesive sheet and the second adhesive sheet are both flush with each other on the outer surfaces facing the inner side wall of the frame. The adhesive layer includes a first adhesive layer attached to the outer surface of the first adhesive sheet and a second adhesive layer attached to the outer surface of the second adhesive sheet.

9. The curtain blackout strip according to claim 2, wherein: A slot is formed inside the first side strip, which passes through the first side strip along the length direction and has a notch on the side surface of the first adhesive sheet for being pasted to the frame. The slot has a first slot portion located inside the first light-shielding sheet and a second slot portion located inside the first adhesive sheet and connected to the first slot portion and provided with the notch. The second side strip is inserted into the slot, the second light-shielding sheet is placed in the first slot portion, and the second adhesive sheet is placed in the second slot portion with its outer surface exposed from the notch and flush with the outer surface of the first adhesive sheet.

10. The curtain blackout strip according to claim 1, wherein: The first light-shielding sheet is connected to the middle part of the first adhesive sheet and the two extend in the same direction to form a T-shape as a whole. The second light-shielding sheet is connected to the middle part of the second adhesive sheet and the two extend in the same direction to form a T-shape as a whole, or the second light-shielding sheet is bent and extended from one side of the second adhesive sheet. A slot is formed inside the first side strip, which passes through the first side strip along the length direction and has a notch on the side surface of the first adhesive sheet for being pasted to the frame. The slot has a first slot portion located inside the first light-shielding sheet and a second slot portion located inside the first adhesive sheet and connected to the first slot portion and provided with the notch. The second side strip is inserted into the slot, the second light-shielding sheet is placed in the first slot portion, the second adhesive sheet is placed in the second slot portion, and the outer surface is exposed from the notch and is flush with the outer surface of the first adhesive sheet.

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