Curtain and operation process thereof

Abstract

The invention discloses a curtain and an operation process thereof, and relates to the field of home furnishing.The technical scheme is characterized in that the curtain comprises a guide module and a shading module, the guide module comprises a shell and a guide rail, a light transmitting opening is formed in the bottom face of the shell, and a mirror board is arranged in a cavity of the shell; the mirror board is obliquely arranged so that light entering the shell along the opening can be refracted by the mirror board and then emitted to the light transmitting opening, the shading module comprises a plurality of sliding rings and curtain cloth detachably connected with the sliding rings, the curtain cloth comprises a surface layer and an inner layer, and a light reflecting layer is arranged on the side, close to the inner layer, of the surface layer. When an observer outside the window sees indoors, the outer layer has good light reflection performance and blocks sight lines, light rays are refracted multiple times and then incline to bypass the outer layer, the view field of seeing indoors from the opening is small, and indoor privacy is protected, so that consideration on privacy protection can be reduced when the light transmission coefficient of the one-way film is selected, and the privacy protection effect is improved. And further, the light transmission coefficient of the one-way film is improved to ensure the indoor lighting brightness.

Description

Technical Field

[0001] The invention relates to the field of home furnishings, and more particularly to a curtain and an operating procedure thereof. Background Art

[0002] Curtains are household items mainly used to change indoor lighting. At the same time, due to different needs, curtains can also have a series of functions such as noise reduction, heat preservation, and privacy shielding. Among the existing curtains, there is a type of one-way perspective curtains, which utilize a one-way film with a certain reflection and transmission ratio. When the outdoor brightness is greater than the indoor brightness, the indoor light can be seen through the transmitted light, and when the outdoor looks into the indoor, the light transmitted from the indoor is masked by the reflected outdoor light, so the outdoor cannot see the indoor. Through this type of curtains, the indoor lighting brightness is guaranteed and the indoor privacy leakage can be avoided.

[0003] However, the ratio of indoor and outdoor brightness is not constant. When light is emitted to the one-way film from both sides of the one-way film, the reflection and transmission ratios of the light are essentially the same. Therefore, when the indoor and outdoor brightness are close or even the indoor brightness is greater than the outdoor brightness, the effect of the curtain will be affected, and the transmittance coefficient of the one-way film is difficult to adjust subsequently. In this case, it becomes difficult to choose the transmittance coefficient of the one-way film. If the transmittance coefficient is too high, it will be difficult to protect privacy, and if the transmittance coefficient is too low, it will be difficult to meet the lighting requirements.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a curtain and an operation process thereof.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a curtain, comprising a guide module and a shading module; The guide module includes a shell and a guide rail, the shell and the guide rail are both arranged horizontally, the guide rail includes two straight line segments parallel to each other, the length direction of the straight line segment is the same as the length direction of the shell, the straight line segment is located in the shell, one end of the straight line segment is fixedly connected to the shell, the bottom surface of the shell is penetrated with a light-transmitting opening, the light-transmitting opening is located between the two straight line segments, the side wall of the shell close to the window is penetrated with an opening, a mirror panel is arranged in the cavity of the shell, and the mirror panel is inclined so that the light entering the shell along the opening is refracted by the mirror panel and then emitted to the light-transmitting opening; The shading module includes a plurality of sliding rings sleeved on guide rails and curtains detachably connected to the plurality of sliding rings, the curtains include a surface layer and an inner layer, the surface layer and the inner layer are respectively connected to two straight line segments through sliding rings, the two ends of the surface layer and the inner layer are fixedly connected, a refractive cavity is formed between the surface layer and the inner layer, the surface layer is located on a side of the inner layer close to the window, a reflective layer is provided on a side of the surface layer close to the inner layer, the inner layer is made of transparent material, and a one-way film is provided on one side of the inner layer.

[0007] The present invention is further configured as follows: the guide rail also includes a collecting section located on one side of the shell, the collecting section is U-shaped, and the two ends of the collecting section are respectively connected to a straight line segment, a winding shaft is provided on the side of the shell away from the collecting section, the length direction of the winding shaft is perpendicular to the length direction of the straight line segment, a blackout cloth is wound on the winding shaft, the end of the blackout cloth is fixedly connected to the curtain, the blackout cloth located between the curtain and the winding shaft covers the light-transmitting port, a cover plate is fixedly connected to the inner side of the collecting section, and the sliding ring is slidably connected to the cover plate.

[0008] The present invention is further configured as follows: the winding shaft is rotatably connected to the shell, the side of the winding shaft away from the window is transmission-connected with a bead chain belt, the end of the blackout cloth is fixedly connected with a slide rod, both ends of the slide rod are rotatably connected with rollers, guide grooves are opened on both side walls of the shell, the length direction of the guide grooves is the same as the length direction of the straight segment, and the rollers roll in the guide grooves.

[0009] The present invention is further configured as follows: one end of the collecting section away from the winding shaft is fixedly connected to a support rod, the support rod is fixedly connected to the building surface, and the sliding ring connected to the surface layer and the sliding ring connected to the inner layer are respectively located on both sides of the support rod.

[0010] The present invention is further configured as follows: a light collecting component is fixedly connected to the shell, the light collecting component is a columnar body with a semicircular cross-section, the length direction of the light collecting component is the same as the length direction of the straight segment, the light collecting component is made of transparent material, the straight side wall of the light collecting component fits the side wall of the shell, and the light collecting component covers the opening.

[0011] The present invention is further configured as follows: a rotating shaft is fixedly connected to the top of the mirror panel, the rotating shaft is located on the side of the top of the shell close to the light collecting component, the rotating shaft is rotatably connected to the shell, a pull rope is fixedly connected to the bottom end of the mirror panel, the pull rope is located on the side of the mirror panel away from the light collecting component, and a binding ring for fixing the pull rope is provided under the shell.

[0012] A curtain operation process, applied to the above-mentioned curtain, including a pulling-opening step and a storing step; The pulling apart step comprises: S11, pulling the bead chain belt, so that the winding shaft drives the shade cloth to be rolled up, and the shade cloth drives the curtain cloth to move in a direction close to the winding shaft until the curtain cloth is pulled to the expected position; S12, pull the drawstring to rotate the mirror panel until the brightness of the light passing through the inner layer reaches the expected brightness, and fix the drawstring on the binding ring; The storage step includes: S21, pulling the curtain to move in a direction away from the winding shaft, the curtain drives the shading cloth to cover the light-transmitting opening, until the curtain is completely hung on the collection section; S22. Release the connection between the drawstring and the binding ring and loosen the drawstring.

[0013] The present invention is further configured as follows: in said S12, the bead chain belt is tied to the binding ring to limit the rotation around the reel.

[0014] In summary, the present invention has the following beneficial effects: when an observer outside the window looks into the room, the outer layer has good reflective properties, blocking the line of sight; and because the light is refracted and tilted multiple times before bypassing the outer layer, the field of view from the opening into the room is smaller, thereby protecting the privacy of the room. Therefore, when selecting the transmittance of the one-way film, considerations for privacy protection can be reduced, thereby increasing the transmittance of the one-way film to ensure indoor lighting brightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a partial cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the partial structure of the housing and the guide rail in the present invention; Figure 4 It is a schematic diagram of the structure of the sliding ring in the present invention; Figure 5 It is a structural schematic diagram of the binding ring in the present invention; Figure 6 It is a schematic diagram of the structure of the cord fabric in the present invention; Figure 7 for Figure 3 Enlarged view of point A in the middle.

[0016] In the figure: 1. shell; 2. straight section; 3. light-transmitting port; 4. opening; 5. mirror panel; 6. surface layer; 7. inner layer; 8. refractive cavity; 9. reflective layer; 10. one-way film; 11. collecting section; 12. winding reel; 13. blackout cloth; 14. cover plate; 15. bead chain; 16. sliding rod; 17. roller; 18. guide groove; 19. support rod; 20. light collecting part; 21. rotating shaft; 22. pull rope; 23. binding ring; 24. sliding ring. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment 1: A curtain, such as Figure 1 , Figure 3 , Figure 4 , Figure 6 As shown, it includes a guiding module and a shading module; The guide module includes a shell 1 and a guide rail. The shell 1 and the guide rail are both arranged horizontally. The guide rail includes two parallel straight segments 2. The length direction of the straight segment 2 is the same as the length direction of the shell 1. The straight segment 2 is located in the shell 1. One end of the straight segment 2 is fixedly connected to the shell 1. A light-transmitting opening 3 is provided through the bottom surface of the shell 1. The light-transmitting opening 3 is located between the two straight segments 2. An opening 4 is provided through the side wall of the shell 1 near the window. A mirror panel 5 is provided in the cavity of the shell 1. The mirror panel 5 is tilted so that the light entering the shell 1 along the opening 4 is refracted by the mirror panel 5 and then emitted to the light-transmitting opening 3. The shading module includes a plurality of sliding rings 24 mounted on the guide rails and curtains detachably connected to the plurality of sliding rings 24. The curtains include a surface layer 6 and an inner layer 7. The surface layer 6 and the inner layer 7 are respectively connected to the two straight line segments 2 through the sliding rings 24. The two ends of the surface layer 6 and the inner layer 7 are fixedly connected. A refractive cavity 8 is formed between the surface layer 6 and the inner layer 7. The surface layer 6 is located on the side of the inner layer 7 close to the window. A reflective layer 9 is provided on the side of the surface layer 6 close to the inner layer 7. The inner layer 7 is made of transparent material. A unidirectional film 10 is provided on one side of the inner layer 7.

[0019] Specifically, a mounting plate is integrally formed on the side of the shell 1 away from the window, and the top surface of the mounting plate is flush with the top surface of the shell 1. A plurality of mounting holes are provided on the mounting plate. The shell 1 is fixedly connected to the ceiling through the mounting plate and bolts. The end of the straight section 2 is plugged into the shell 1. Two sliding grooves are provided on the shell 1. The straight section 2 is located in the sliding groove. The bottom end of the sliding groove is connected to the outside. The orientation of the opening 4 and the orientation of the light-transmitting port 3 are perpendicular to each other. The curtain is hung under the straight section 2 through a sliding ring 24. The surface layer 6 forms a reflective layer 9 by coating a mirror coating. The inner layer 7 is bonded to the unidirectional film 10. The two ends of the surface layer 6 are respectively bonded to the two ends of the inner layer 7, so that a refractive cavity 8 is formed in the curtain when the curtain droops. The external light passes through the opening 4 into the inner cavity of the shell 1, and then is reflected on the mirror plate 5. The light is reflected by the light transmission port 3 and enters the refractive cavity 8. The light incident on the side of the surface layer 6 close to the inner layer 7 is reflected by the reflective layer 9 and then incident on the inner layer 7. When the light is incident on the inner layer 7, part of it enters the room through the one-way film 10, and part of it is reflected by the one-way film 10 and then re-introduced to the inner layer 7 under the reflection of the reflective layer 9, thereby ensuring uniform brightness at various locations on the inner layer 7. When an observer outside the window looks into the room, the outer layer has better reflective performance and blocks the line of sight. Because the light bypasses the outer layer after multiple refractions and inclinations, the field of view from the opening 4 to the room is small, thereby protecting the privacy of the room. Therefore, when selecting the light transmittance coefficient of the one-way film 10, the consideration of privacy protection can be reduced, thereby increasing the light transmittance coefficient of the one-way film 10 to ensure the lighting brightness of the room.

[0020] like Figure 2 , Figure 3 , Figure 4 As shown, the guide rail also includes a collecting section 11 located on one side of the shell 1, and the collecting section 11 is U-shaped. Both ends of the collecting section 11 are respectively connected to a straight section 2. A winding shaft 12 is provided on the side of the shell 1 away from the collecting section 11. The length direction of the winding shaft 12 is perpendicular to the length direction of the straight section 2. A blackout cloth 13 is wound on the winding shaft 12, and the end of the blackout cloth 13 is fixedly connected to the curtain cloth. The blackout cloth 13 located between the curtain cloth and the winding shaft 12 covers the light-transmitting port 3. A cover plate 14 is fixedly connected to the inner side of the collecting section 11, and a sliding ring 24 is slidably connected to the cover plate 14. An end of the collecting section 11 away from the winding shaft 12 is fixedly connected to a support rod 19, and the support rod 19 is fixedly connected to the building surface. The sliding ring 24 connected to the surface layer 6 and the sliding ring 24 connected to the inner layer 7 are respectively located on both sides of the support rod 19.

[0021] Specifically, the shading cloth 13 between the winding shaft 12 and the curtain is stretched to a straight state, the collecting section 11 and the straight section 2 are integrally formed, and when the curtain is completely hung under the collecting section 11, the shading cloth 13 covers the light-transmitting opening 3 to prevent the mirror panel 5 from affecting the user when the curtain is not needed. The bottom end of the support rod 19 is sleeved on the collecting section 11, and the top end of the support rod 19 is connected to the ceiling by bolts. The support rod 19 plays the role of supporting the guide rail to prevent the guide rail from bending and deformation. At the same time, because the sliding ring 24 cannot pass through the support rod 19, that is, the support rod 19 divides the guide rail into two sections, it is avoided that the surface layer 6 and the inner layer 7 appear on the same straight section 2 at the same time, which affects the shading effect of the curtain. The cover plate 14 and the collecting section 1 1 is integrally formed, and the bottom surface of the cover plate 14 is coated with mirror paint. When the middle part of the curtain is hung under the straight section 2 and the other part is hung under the collecting section 11, the cover plate 14 prevents the light from overflowing from the middle of the collecting section 11. The top of the guide rail is integrally formed with a convex ridge with a square cross section. The inner ring of the sliding ring 24 is respectively provided with a first groove matched with the convex ridge and a second groove matched with the cover plate 14. The depth of the first groove is less than the wall thickness of the sliding ring 24. The second groove cuts off the sliding ring 24. The second groove ensures that the sliding of the sliding ring 24 on the collecting section 11 is not affected by the cover plate 14. The cooperation of the first groove and the convex ridge limits the rotation of the sliding ring 24, ensuring that the second groove and the mirror plate 5 can maintain a fitting relationship.

[0022] like Figure 1 , Figure 2 , Figure 7 As shown, the winding shaft 12 is rotatably connected to the shell 1, and the side of the winding shaft 12 away from the window is transmission-connected with a bead chain belt 15, the end of the blackout cloth 13 is fixedly connected with a slide rod 16, and both ends of the slide rod 16 are rotatably connected with rollers 17, and guide grooves 18 are opened on the two side walls of the shell 1, and the length direction of the guide grooves 18 is the same as the length direction of the straight section 2, and the rollers 17 roll in the guide grooves 18.

[0023] Specifically, the winding shaft 12 and the bead chain belt 15 are connected through a head transmission. When the curtain is pulled to cover the window, the winding shaft 12 is rotated by the bead chain belt 15 to keep the blackout cloth 13 taut and straight. A roller is arranged through the middle of the slide bar 16. The roller is fixedly connected to the roller 17 and is rotatably connected to the slide bar 16. Two hooks for hanging the curtain are integrally formed at the bottom end of the slide bar 16. The curtain is connected to the blackout cloth 13 through the hook and the slide bar 16. The slide bar 16 moves in the housing 1 through the roller 17 and carries the curtain, thereby reducing the load of the curtain on the guide rail. The roller 17 makes the slide bar 16 move more smoothly. The bottom area of ​​the guide groove 18 is larger than the opening 4 area of ​​the guide groove 18, thereby limiting the movement of the roller 17 and preventing the roller 17 from escaping from the guide groove 18.

[0024] like Figure 1 , Figure 2As shown, a light collecting component 20 is fixedly connected to the shell 1. The light collecting component 20 is a columnar body with a semicircular cross-section. The length direction of the light collecting component 20 is the same as the length direction of the straight line segment 2. The light collecting component 20 is made of transparent material. The straight side wall of the light collecting component 20 fits the side wall of the shell 1, and the light collecting component 20 covers the opening 4.

[0025] Specifically, the light collecting member 20 is made of transparent acrylic material, and a connecting plate is integrally formed on one side of the light collecting member 20 close to the opening 4. A plurality of connecting holes are provided on the connecting plate, and the connecting plate is connected to the side wall of the opening 4 by bolts. When external light is incident on the light collecting member 20, the refracted light will deviate toward the normal line, and thus the light will deviate toward the middle of the opening 4, thereby increasing the angle of the light entering the opening 4 and improving the indoor lighting brightness.

[0026] like Figure 1 , Figure 3 , Figure 5 As shown, the top end of the mirror panel 5 is fixedly connected with a rotating shaft 21, which is located on the side of the top of the shell 1 close to the light collecting component 20, and the rotating shaft 21 is rotatably connected to the shell 1. The bottom end of the mirror panel 5 is fixedly connected with a pull rope 22, which is located on the side of the mirror panel 5 away from the light collecting component 20, and a binding ring 23 for fixing the pull rope 22 is provided under the shell 1.

[0027] Specifically, the rotating shaft 21 and the mirror panel 5 are integrally formed, and the binding ring 23 is composed of a ring and a threaded rod. The threaded rod is threadedly connected to the wall. The binding ring 23 and the pull rope 22 are both located at one end of the shell 1 where the winding shaft 12 is provided. By pulling the pull rope 22, the inclination angle of the mirror panel 5 can be changed, thereby changing the light entering the refraction cavity 8 after being refracted on the mirror panel 5, thereby changing the indoor lighting brightness, so that the indoor lighting brightness can be adjusted to meet different lighting needs. The binding ring 23 can fix the pull rope 22. Under the action of the tension of the pull rope 22 and gravity, the mirror panel 5 is in a stationary state. At the same time, the binding ring 23 and the pull rope 22 are at the same end of the shell 1, that is, the bead chain belt 15 can also be fixed on the binding ring 23, so as to limit the rotation of the winding shaft 12 and prevent the curtain from pulling the blackout cloth 13 under the action of wind and other factors.

[0028] Embodiment 2: A curtain operation process, applied to the above-mentioned curtain, including a pulling-opening step and a folding step; The pulling step includes: S11, pulling the bead chain belt 15, so that the winding shaft 12 drives the shade cloth 13 to roll up, and the shade cloth 13 drives the curtain cloth to move in the direction close to the winding shaft 12 until the curtain cloth is pulled to the expected position; S12, pull the pull rope 22 to rotate the mirror panel 5 until the brightness of the light passing through the inner layer 7 reaches the expected brightness, and fix the pull rope 22 on the binding ring 23; The storage step includes: S21, pulling the curtain to move in a direction away from the winding shaft 12, the curtain drives the shading cloth 13 so that the shading cloth 13 covers the light-transmitting opening 3, until the curtain is completely hung on the collecting section 11; S22, releasing the connection between the drawstring 22 and the binding ring 23, and loosening the drawstring 22.

[0029] In S12 , the bead chain belt 15 is tied to the binding ring 23 to restrict the rotation around the reel 12 .

[0030] Specifically, in the pulling step, the bead chain belt 15 drives the winding shaft 12 and then drives the blackout cloth 13, ensuring that the blackout cloth 13 remains taut in the pulling step. In S12, the pull cord 22 and the bead chain belt 15 are respectively tied to the top and bottom ends of the ring, so that when the curtain is subsequently adjusted by the two, they do not affect each other. In S21, the blackout cloth 13 is driven by the curtain cloth to keep the blackout cloth 13 taut. In S22, the pull cord 22 is relaxed to avoid the pull cord 22 being taut for a long time, thereby ensuring the service life of the pull cord 22.

[0031] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A curtain, characterized in that: It includes a guiding module and a shading module; The guide module comprises a shell (1) and a guide rail. The shell (1) and the guide rail are both arranged horizontally. The guide rail comprises two mutually parallel straight segments (2). The length direction of the straight segment (2) is the same as the length direction of the shell (1). The straight segment (2) is located in the shell (1). One end of the straight segment (2) is fixedly connected to the shell (1). A light-transmitting opening (3) is provided through the bottom surface of the shell (1). The light-transmitting opening (3) is located between the two straight segments (2). An opening (4) is provided through the side wall of the shell (1) close to the window. A mirror panel (5) is provided in the cavity of the shell (1). The mirror panel (5) is arranged obliquely so that light entering the shell (1) along the opening (4) is refracted by the mirror panel (5) and then emitted toward the light-transmitting opening (3). The shading module comprises a plurality of sliding rings (24) sleeved on a guide rail and curtains detachably connected to the plurality of sliding rings (24); the curtains comprise a surface layer (6) and an inner layer (7); the surface layer (6) and the inner layer (7) are respectively connected to two straight line segments (2) via sliding rings (24); the two ends of the surface layer (6) and the inner layer (7) are fixedly connected; a refractive cavity (8) is formed between the surface layer (6) and the inner layer (7); the surface layer (6) is located on a side of the inner layer (7) close to the window; a reflective layer (9) is provided on a side of the surface layer (6) close to the inner layer (7); the inner layer (7) is made of a transparent material; and a one-way film (10) is provided on one side of the inner layer (7).

2. The curtain according to claim 1, characterized in that: The guide rail further comprises a collecting section (11) located on one side of the shell (1), the collecting section (11) being U-shaped, the two ends of the collecting section (11) being respectively connected to a straight section (2), a winding shaft (12) being provided on a side of the shell (1) away from the collecting section (11), the length direction of the winding shaft (12) being perpendicular to the length direction of the straight section (2), a shading cloth (13) being wound on the winding shaft (12), the end of the shading cloth (13) being fixedly connected to a curtain, the shading cloth (13) located between the curtain and the winding shaft (12) covering the light transmission opening (3), a cover plate (14) being fixedly connected to the inner side of the collecting section (11), and the sliding ring (24) being slidably connected to the cover plate (14).

3. The curtain according to claim 2, characterized in that: The winding shaft (12) is rotatably connected to the housing (1); a bead chain belt (15) is transmission-connected to the side of the winding shaft (12) away from the window; a sliding rod (16) is fixedly connected to the end of the blackout cloth (13); both ends of the sliding rod (16) are rotatably connected to rollers (17); guide grooves (18) are provided on the two side walls of the housing (1); the length direction of the guide grooves (18) is the same as the length direction of the straight section (2); and the rollers (17) roll in the guide grooves (18).

4. The curtain according to claim 3, characterized in that: One end of the collecting section (11) away from the winding shaft (12) is fixedly connected to a support rod (19), and the support rod (19) is fixedly connected to the building surface. The sliding ring (24) connected to the surface layer (6) and the sliding ring (24) connected to the inner layer (7) are respectively located on both sides of the support rod (19).

5. The curtain according to claim 4, characterized in that: A light collecting member (20) is fixedly connected to the shell (1); the light collecting member (20) is a columnar body with a semicircular cross section; the length direction of the light collecting member (20) is the same as the length direction of the straight line segment (2); the light collecting member (20) is made of a transparent material; the straight side wall of the light collecting member (20) fits the side wall of the shell (1); and the light collecting member (20) covers the opening (4).

6. The curtain according to claim 5, characterized in that: The top end of the mirror panel (5) is fixedly connected to a rotating shaft (21), the rotating shaft (21) is located on a side of the top end of the shell (1) close to the light collecting member (20), the rotating shaft (21) is rotatably connected to the shell (1), the bottom end of the mirror panel (5) is fixedly connected to a pull rope (22), the pull rope (22) is located on a side of the mirror panel (5) away from the light collecting member (20), and a binding ring (23) for fixing the pull rope (22) is provided below the shell (1).

7. A curtain operation process, applied to the curtain according to any one of claims 1 to 6, characterized in that: Including the steps of opening and storing; The pulling apart step comprises: S11, pulling the bead chain belt (15) so that the winding shaft (12) drives the shade cloth (13) to be rolled up, and the shade cloth (13) drives the curtain cloth to move in a direction close to the winding shaft (12) until the curtain cloth is pulled to a desired position; S12, pulling the drawstring (22) to rotate the mirror panel (5) until the brightness of the light passing through the inner layer (7) reaches the expected brightness, and fixing the drawstring (22) on the binding ring (23); The storage step comprises: S21, pulling the curtain to move in a direction away from the winding shaft (12), the curtain driving the shading cloth (13) so that the shading cloth (13) covers the light-transmitting opening (3), until the curtain is completely hung on the collection section (11); S22, releasing the connection between the drawstring (22) and the binding ring (23), and loosening the drawstring (22).

8. The curtain according to claim 7, characterized in that: In the S12, the bead chain belt (15) is tied to the binding ring (23) to limit the rotation around the reel (12).

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