Multi-mode lifting curtain

Abstract

The utility model relates to a multi-mode lifting curtain. The multi-mode lifting curtain comprises a winding assembly, curtain cloth, an adjusting rod, a positioning piece and a falling body. The winding assembly comprises a supporting piece and a winding shaft rotationally installed on the supporting piece. The curtain cloth is completely or partially wound around the periphery of the reel. The curtain cloth comprises a light-transmitting section and a light-shading section. The light-transmitting section and the light-shading section are connected in the stretching direction of the curtain cloth. The shading section is arranged in front of the light-transmitting section in the stretching direction. The adjusting rod is connected to the shading section, and the adjusting rod and the light-transmitting section are arranged in a spaced mode in the stretching direction of the curtain cloth. In the height direction, the shading section is located between the joint and the falling body, and the light-transmitting section is located between the upper edge of the window and the joint, so that part of outdoor natural light can enter a room from the light-transmitting section. The shading section can completely or partially shade the part, below the joint, of the window, so that the requirement for indoor privacy protection can be met at the same time, and the situation that the window needs to be completely shaded due to the fact that indoor privacy is guaranteed is avoided.

Description

Technical Field

[0001] This application relates to the technical field of window shading, and particularly to a multi-mode lifting curtain. Background Art

[0002] Windows are part of the building structure and are responsible for lighting or ventilation of the internal environment of the building. Generally, a curtain is installed inside the window, and the curtain can completely or partially block the window, so as to adjust the light intensity entering the room from the window.

[0003] In the traditional technology, the curtain is generally completely opaque. A reel is installed at the top of the window, and the curtain can be completely wound around the outer periphery of the reel, putting the window in a full-lighting mode. The curtain can also be partially released and pulled down from the reel. At this time, the upper part of the window is blocked by the curtain, and the lower part of the window can receive light. When the curtain completely blocks the window, the curtain is in a full-shading mode.

[0004] However, in the full-lighting mode, indoor privacy cannot be protected, and the work or rest of indoor personnel is easily disturbed by activities outside the window, especially in low-rise buildings. In the partial-lighting mode, the upper part of the window is blocked, and outdoor natural light enters the room from the lower part of the window. Since the activity range of indoor personnel is generally at the middle height of the window and below, the curtain can only protect indoor privacy to a limited extent, and the activities of indoor personnel may still be seen from the lower part of the window. Affected by the curtain, the brightness of the indoor environment decreases significantly. In order to meet the need for indoor privacy protection, indoor personnel have to continue to pull down the curtain and adopt the full-shading mode. At this time, the outdoor natural light is completely blocked by the curtain, resulting in the inability to illuminate the room with outdoor natural light. Utility Model Content

[0005] Based on this, the present utility model provides a multi-mode lifting curtain that can solve or at least mitigate the above technical problems.

[0006] The present utility model provides a multi-mode lifting curtain, comprising:

[0007] A winding assembly, comprising a support member and a reel rotatably mounted on the support member;

[0008] A curtain, which is wholly or partly wound around the outer periphery of the reel; the curtain comprises a light-transmitting section and a light-shielding section; the light-transmitting section and the light-shielding section are arranged in connection along the unfolding direction of the curtain; the light-shielding section is arranged before the light-transmitting section along the unfolding direction;

[0009] An adjusting rod, fixedly connected to one end of the light-shielding section away from the light-transmitting section; the middle part of the light-shielding section is slidably inserted through a through groove of the adjusting rod; as the curtain rises and falls, the adjusting rod can move along a descending path, and the descending path has an upper limit position and a lower limit position;

[0010] A falling body, slidably connected to a part of the light-shielding section, the part being located between the through groove of the adjusting rod and the end of the light-shielding section away from the light-transmitting section; and

[0011] At least one pair of positioning members, located at a stop position between the upper limit position and the lower limit position of the descending path of the adjusting rod, and the positioning members have a locking position and an unlocking position;

[0012] Wherein, when the curtain rises, the falling body abuts against the adjusting rod and rises together with the curtain;

[0013] When the curtain descends, when the positioning member is in the locking position, it can position the adjusting rod at the stop position. At this time, the falling body can continue to descend; when the positioning member is in the unlocking position, the adjusting rod can smoothly cross the stop position.

[0014] For the above multi-mode lifting curtain, when it is necessary to meet indoor lighting while ensuring indoor privacy, before the adjusting rod descends past the stop position where the positioning member is located, one pair of positioning members can be switched to the locking position. The descending adjusting rod is blocked by the positioning member when it moves to the positioning member, and thus is positioned at the stop horizontal position. Under the restriction of the positioning member, the adjusting rod stays at a stop position with a certain height relative to the lower edge of the window, and the falling body slides downward as the curtain continues to descend. Since the end of the light-shielding section is connected to the adjusting rod, that is, the end of the light-shielding section is also positioned at the stop position and does not descend. As the curtain continues to descend, the upper part of the light-shielding section continues to move downward and hangs through the adjusting rod, and thus folds into a double-layer structure under the adjusting rod. Due to its own gravity, the falling body will always slide to the bottom of the double-layer structure. The gravity of the falling body exerts a downward pulling force on the curtain, which not only helps the light-shielding section to smoothly pass through the adjusting rod during the descending process of the curtain, but also ensures the flatness of the curtain.

[0015] Since the length dimension of the light-shielding section along the stretching direction is slightly longer than the dimension of the window in height, when the horizontal overlap of the light-shielding section reaches a certain length, the light-transmitting section begins to be released and unfolded. When the junction between the light-transmitting section and the light-shielding section is lower than the upper edge of the window, the light-transmitting section is opposite to the upper part of the opening of the window. At this time, natural outdoor light can enter the room from the light-transmitting section. Since the light-shielding section can block the corresponding part of the window opening, it can meet the need for indoor privacy protection at the same time, avoiding the need for full light shielding of the window due to ensuring indoor privacy.

[0016] The multi-mode lifting curtain of the present application can achieve the following different modes: 1. Full lighting mode; 2. Full light shielding mode; 3. Only lower part lighting mode; 4. Only upper part lighting mode; 5. Upper and lower simultaneous lighting and middle part shielding mode.

[0017] In one embodiment, the positioning member is slidably disposed between the locking position and the unlocking position; alternatively, the positioning member is rotatably disposed between the locking position and the unlocking position.

[0018] In one embodiment, the positioning member is rotatably disposed between the locking position and the unlocking position, and a semi-open space with an opening direction that can be rotationally adjusted is provided inside the positioning member; alternatively, the positioning member and the mounting surface jointly enclose a semi-open space with an opening direction that can be rotationally adjusted.

[0019] In one embodiment, the boundary surface of the semi-open space includes a side shift limiting boundary surface and a descent limiting boundary surface; the two side shift limiting boundary surfaces are oppositely disposed; the descent limiting boundary surface is disposed between the two side shift limiting boundary surfaces.

[0020] In one embodiment, each pair of the positioning members interferes with the descent paths of the two ends of the adjusting rod when in the locking position.

[0021] In one embodiment, the at least one pair of positioning members includes two pairs of the positioning members, and the two pairs of the positioning members are used to be distributed at different heights along the descent path of the adjusting rod.

[0022] In one embodiment, the height distance between one pair of the positioning members and the lower edge of the window corresponds to 20% to 30% of the height dimension of the window; and / or, the height distance between one pair of the positioning members and the lower edge of the window corresponds to 40% to 60% of the height dimension of the window.

[0023] In one embodiment, the width of the through slot is greater than the thickness of the light-shielding section.

[0024] In one embodiment, the falling body includes a main falling member and a rolling contact member rotatably connected to the main falling member; the light-shielding section is movably disposed between the rolling contact member and the main falling member.

[0025] In one embodiment, a groove is formed in the main falling member; the rolling contact member is accommodated in the groove; the groove is formed between two width-limiting boundary surfaces of the main falling member; the distance between the two width-limiting boundary surfaces is greater than the outer diameter of the rolling contact member. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of a multi-mode lifting curtain according to an embodiment of the present application, wherein the curtain cloth is completely wound around the outer periphery of the reel, and the window is in a full daylighting state.

[0027] Figure 2 isFigure 1 Schematic three-dimensional view of the multi-mode lifting curtain in another state, where the curtain completely blocks the light of the window.

[0028] Figure 3A For Figure 1 Schematic three-dimensional view of the multi-mode lifting curtain in another state, where the first pair of positioning members and the second pair of positioning members are spaced apart in the height direction, the height of the second pair of positioning members is higher than that of the first pair of positioning members, and the second pair of positioning members is in the unlocked position, the first pair of positioning members is in the locked position, the adjusting member is carried at the first pair of positioning members, and the falling body is higher than the lower edge of the window.

[0029] Figure 3B For Figure 3A Side view of the multi-mode lifting curtain shown.

[0030] Figure 4A For Figure 3A Schematic three-dimensional view of the multi-mode lifting curtain in another state, where the height of the falling body is the same as the lower edge of the window.

[0031] Figure 4B For Figure 4A Side view of the multi-mode lifting curtain shown.

[0032] Figure 5A For Figure 1 Schematic three-dimensional view of the multi-mode lifting curtain in another state, where the second pair of positioning members is in the locked position, the first pair of positioning members is in the unlocked position, the adjusting member is carried at the second pair of positioning members, and the falling body is higher than the lower edge of the window.

[0033] Figure 5B For Figure 5A Side view of the multi-mode lifting curtain shown.

[0034] Figure 6A Schematic three-dimensional view of another embodiment of the application, where the height of the falling body is the same as the lower edge of the window.

[0035] Figure 6B For Figure 6A Side view of the multi-mode lifting curtain shown.

[0036] Figure 7A Schematic structural view of the multi-mode lifting curtain in one state of another embodiment of the application, where the positioning member is in the locked position.

[0037] Figure 7B For Figure 7A Schematic three-dimensional view of the multi-mode lifting curtain in another state, where the positioning member is in the unlocked position.

[0038] Figure 8 Schematic structural view of the multi-mode lifting curtain of an embodiment of the present application.

[0039] Figure 9A Partial structural schematic diagram of a multi-mode lifting curtain according to another embodiment of the present application.

[0040] Figure 9B Partial structural schematic diagram of a multi-mode lifting curtain according to yet another embodiment of the present application.

[0041] Figure 10 Partial structural schematic diagram of a multi-mode lifting curtain according to yet another embodiment of the present application.

[0042] Reference numerals: 100, multi-mode lifting curtain; 20, winding assembly; 21, support member; 22, reel; 23, adjustment zipper; 30, curtain cloth; 31, light-transmitting section; 32, light-shielding section; 320, double-layer structure; 321, edge; 301, junction; 40, adjustment rod; 41, end; 42, through groove; 50, positioning member; 50a, first positioning member; 50b, second positioning member; 51, semi-open space; 511, side-shift limiting boundary surface; 512, downward limiting boundary surface; 60, falling body; 61, main falling member; 611, groove; 612, width-limiting boundary surface; 62a / 62b, rolling contact member; 621, rod-shaped member; 900, window; 901, upper edge; 902, lower edge; 903, mounting surface; F1, stretching direction; S1, downward path. Detailed implementation manners

[0043] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0044] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0045] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0046] The following introduces the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

[0047] Referring to Figure 1 , the present application provides a multi-mode lifting curtain 100 that can adjustably fully or partially block the window 900, thereby fully or partially blocking the natural light entering the room from the window 900 to adjust the indoor brightness, and the degree of blocking of the multi-mode lifting curtain 100 on the window 900 can be adjusted as needed to protect the privacy of the room. Specifically, the window 900 can be a floor-to-ceiling window 900 or a window 900 with a height difference between the lower edge 902 and the ground on the same floor.

[0048] Specifically, the window 900 involved in the description of the present application includes not only one or more holes opened in an opaque wall in the traditional sense that can at least let outdoor light enter the room (the hole may also let outdoor light and air enter the room), but also a transparent or translucent wall in the modern sense. The wall is mainly made of a single piece or multiple pieces of transparent or translucent glass and is equipped with a support frame to form a device that can let outdoor light enter the room. That is, whether there are holes in the wall or not, as long as there is a light-transmitting part, the light-transmitting part belongs to the category of the window in the present application.

[0049] In some embodiments, the window can be understood as a building structure with an opening. The opening can be understood as a hole that can at least let outdoor light and enter the room (the hole may also let outdoor light and air enter the room at the same time). The boundary of the opening of the window 900 is formed by the wall. In some other embodiments, the boundary of the opening of the window 900 is formed by a metal or plastic frame. The support 21 is installed on the wall or the metal frame. In still other embodiments, the boundary of the opening of the window 900 can be formed by glass or other hard materials. Specifically, the dimension of the window 900 in height can be understood as the distance between the upper edge 901 and the lower edge 902 of the window 900.

[0050] In some embodiments, the opening of window 900 is at least translucent. Further, the opening of window 900 may also be breathable. In some embodiments, the opening of window 900 is completely open and not blocked by a translucent wind-shielding structure, so window 900 has both translucency and breathability at the same time.

[0051] In some embodiments, the opening of window 900 is blocked by a translucent wind-shielding structure. Window 900 is translucent but not breathable. The translucent wind-shielding structure is made of glass, acrylic or other translucent materials. In some other embodiments, the opening of window 900 can also be understood as a locally translucent area in a complete piece of glass. In areas other than this locally translucent area, light-shielding properties can be achieved by applying a film, painting or glass staining.

[0052] In some embodiments, in combination Figure 3A 、 Figure 3B and Figure 7A as shown, the multi-mode lifting curtain 100 includes: a winding assembly 20, a curtain cloth 30, an adjusting rod 40, at least a pair of positioning members 50, and a hanging weight 60. The winding assembly 20 includes a support member 21 and a winding shaft 22 rotatably mounted on the support member 21. The curtain cloth 30 is made of a flexible fabric and can be wound around the outer circumference of the winding shaft 22 in whole or in part.

[0053] The curtain cloth 30 includes a translucent section 31 and a light-shielding section 32. The translucent section 31 and the light-shielding section 32 are connected in sequence along the stretching direction F1 of the curtain cloth 30. The light-shielding section 32 is arranged before the translucent section 31 along the stretching direction F1. When the curtain cloth 30 is fully unfolded, the translucent section 31 is located above the light-shielding section 32. Preferably, the length of the light-shielding section 32 along the stretching direction F1 is slightly greater than the overall height of the opening of window 900, so the light-shielding section 32 can completely cover the opening of window 900. The length of the translucent section 31 can be selected as needed. For example, it can be 1 / 3, 1 / 2, 3 / 4, etc. of the length of the light-shielding section 32, which can be determined according to the actual situation.

[0054] The light-shielding section 32 is made of a non-translucent fabric. The translucent section 31 can be formed by a translucent fabric or by providing a hollowed-out portion on the fabric of the curtain cloth 30.

[0055] The adjusting rod 40 is fixedly connected to the end of the light-shielding section 32 (i.e., the end of the light-shielding section 32 away from the translucent section 31), and the adjusting rod 40 moves up and down with the light-shielding section 32 when the curtain cloth 30 moves up and down. When the adjusting rod 40 is supported by a positioning member (such as Figure 7A the positioning member 50 in Figure 1Before the first positioning member 50a and the second positioning member 50b in it, the adjusting rod 40 is arranged at an interval from the light-transmitting section 31 along the stretching direction F1 of the curtain cloth 30. The middle part of the light-shielding section 32 is slidably inserted through the through groove 42 of the adjusting rod 40. As the curtain cloth 30 moves up and down, the adjusting rod 40 can move along a descending path S1, and the descending path S1 has an upper limit position and a lower limit position. The light-shielding section 32 forms a double-layer structure 320 below the adjusting rod 40.

[0056] At least a pair of positioning members are movably arranged on both sides of the window 900 and are located between the upper limit position and the lower limit position of the descending path S1 of the adjusting rod 40 to interact with the adjusting rod 40. The positioning member can move and switch between a locked position and an unlocked position. When the positioning member is in the locked position, it interferes with the descending path S1 of the adjusting rod 40, and at this time, it can stop the adjusting rod 40 to prevent it from descending further. When the positioning member is in the unlocked position, it has no interference with the descending path S1 of the adjusting rod 40, and at this time, the adjusting rod 40 can smoothly descend below the height where the positioning member is located. In this application, the position where the positioning member is located is defined as the stop position.

[0057] In some embodiments, in combination Figure 3A with Figure 3B As shown in, the multi-mode lifting curtain 100 is provided with a pair of first positioning members 50a and a pair of second positioning members 50b. The first positioning member 50a and the second positioning member 50b are located at different height positions, and among them, the first positioning member 50a is located below the second positioning member 50b.

[0058] The weight 60 is slidably connected to a part of the light-shielding section 32, and this part is located between the through groove 42 of the adjusting rod 40 and the end of the light-shielding section 32.

[0059] When the curtain cloth 30 rises, the weight 60 slides to the end edge 321 of the light-shielding section 32 due to its own gravity. Since the end edge 321 of the light-shielding section 32 is connected to the adjusting rod 40, the weight 60 will not fall off. At this time, the adjusting rod 40 also slides relative to the light-shielding section 32 to abut against the weight 60 and rises together with the curtain cloth 30.

[0060] When the curtain cloth 30 descends and the positioning member is in the unlocked position, the adjusting rod 40 can smoothly cross the stop position. When the positioning member is in the locked position, it can position the adjusting rod 40 at the stop position, that is, at the positioning member. At this time, the falling body 60 can continue to descend. Thus, when the curtain cloth 30 continues to descend, the light-shielding section 32 continues to descend. However, since the end edge 321 of the light-shielding section 32 is fixedly connected to the adjusting rod 40 and the middle part of the light-shielding section 32 slides through the adjusting rod 40, the part of the light-shielding section 32 located below the adjusting rod 40 will be folded into a double-layer structure 320. It can be understood that based on the different displacement amounts of the curtain cloth 30 descending, the length of the double-layer structure 320 in the vertical direction will change. However, no matter how the displacement amount of the curtain cloth 30 descending changes, since the falling body 60 is slidably connected to the double-layer structure 320 and under the action of gravity, the falling body 60 will always be located at the bottom end of the double-layer structure 320.

[0061] In some embodiments, the double-layer structure 320 suspends or bears all or part of the falling body 60.

[0062] Specifically, as shown in Figure 1 The reel 22 is installed near the upper edge 901 of the window 900 through the support member 21. The reel 22 can rotate relative to the support member 21 to a predetermined angle under traction. When the reel 22 rotates in the direction of winding the curtain cloth 30, the length of the curtain cloth 30 wound around the outer periphery of the reel 22 increases. Since the light-shielding section 32 is arranged before the light-transmitting section 31 along the stretching direction F1, after the entire light-transmitting section 31 has been wound around the outer periphery of the reel 22, the light-shielding section 32 begins to be wound around the outer periphery of the reel 22.

[0063] As shown in Figure 2 In the unfolded state, the length dimension of the light-shielding section 32 along the stretching direction F1 is slightly longer than the dimension of the window 900 in height. Thus, when the light-shielding section 32 is fully unfolded, the light-shielding section 32 can completely cover the window 900. When the reel 22 rotates in the direction of releasing the curtain cloth 30, the curtain cloth 30 gradually leaves the outer periphery of the reel 22 and unfolds. The curtain cloth 30 droops downward under the action of gravity. Since the adjusting rod 40 and the falling body 60 are respectively connected to the curtain cloth 30, when the reel 22 rotates in the releasing direction, the adjusting rod 40 and the falling body 60 descend accordingly. Since the adjusting rod 40 is fixedly connected to the end of the light-shielding section 32 and the falling body 60 is slidably connected to the part of the light-shielding section 32 between the adjusting rod 40 and the end of the light-shielding section 32, before the adjusting rod 40 descends to contact the positioning member (such as Figure 7A the positioning member 50 in Figure 1 or the first positioning member 50a and the second positioning member 50b in ), the falling body 60 abuts against the adjusting rod 40 and descends together with the light-shielding section 32. The positioning member is installed around the window 900, and the height of the positioning member is greater than the lower edge 902 of the window 900.

[0064] When the adjusting rod 40 stays at the positioning member, that is, in the stop position, and the falling body 60 is at a relatively lower position relative to the adjusting rod 40, when the reel 22 rotates in the direction of winding the curtain cloth 30, since the portion of the light-shielding section 32 connected to the adjusting rod 40 is restricted by the adjusting rod 40, the rotation of the reel 22 shortens the vertical dimension of the double-layer structure 320, and the falling body 60 rises due to the restriction of the end of the light-shielding section 32 fixedly connected to the adjusting rod 40 until the falling body 60 abuts upward against the adjusting rod 40. Thereafter, when the reel 22 continues to rotate in the direction of winding the curtain cloth 30, under the traction of the light-shielding section 32, the falling body 60 pushes the adjusting rod 40 away from the positioning member and continues to rise.

[0065] When it is necessary to meet the indoor lighting while ensuring indoor privacy, before the adjusting rod 40 descends past the stop position where the positioning member is located, one pair of positioning members (such as Figure 3A , 4A the first positioning member 50a in Figure 5A , Figure 5B , 6A or the second positioning member 50b in

[0066] can be switched to the locked position. The descending adjusting rod 40 is blocked by the positioning member when it moves to the positioning member, and thus is positioned at the stop position. Under the restriction of the positioning member, the adjusting rod 40 stays at the stop position with a certain height relative to the lower edge 902 of the window 900, while the falling body 60 slides downward as the curtain cloth 30 continues to descend. Since the end of the light-shielding section 32 is connected to the adjusting rod 40, that is, the end of the light-shielding section 32 is also positioned at the stop position and no longer descends. As the curtain cloth 30 continues to descend, the upper part of the light-shielding section 32 continues to move downward and hangs down through the adjusting rod 40, and thus is folded into a double-layer structure 320 below the adjusting rod 40. Due to its own gravity, the falling body 60 will always slide to the bottom end of the double-layer structure 320. The gravity of the falling body 60 exerts a downward pulling force on the curtain cloth 30, which not only facilitates the smooth passing of the light-shielding section 32 through the adjusting rod 40 during the descent of the curtain cloth 30, but also ensures the flatness of the curtain cloth 30.

[0067] The user can determine the degree of deployment of the light-transmitting section 31 according to the needs of lighting and privacy protection. For example, Figure 3A , 5A As shown, the light-transmitting section 31 can be partially deployed. At this time, the lower part of the light-blocking section 32 does not completely cover the lower part of the opening of the window 900. At this time, lighting can be achieved simultaneously through the upper light-transmitting section 31 and the lower exposed opening of the window 900. Or as Figure 4A , 6A As shown, the curtain cloth 30 can be further deployed so that the light-blocking section 32 completely covers the lower part of the opening of the window 900, and lighting is only achieved through the upper light-transmitting section 31. In this way, indoor privacy can be better protected without affecting lighting.

[0068] From Figure 3A , 4A , 5A, 6A, it can be seen that when both lighting and better protection of indoor privacy are required, the first positioning member 50a can be selected to be switched to the locked state (as Figure 3A , 4A shown). And when both protection of indoor privacy and better lighting are required, the second positioning member 50b can be selected to be switched to the locked state (as Figure 5A , 6A shown). The user can flexibly select according to actual needs to balance between lighting and privacy protection, so as to achieve the desired effect of the user.

[0069] Combined with Figure 2 shown, when the indoor personnel need to sleep, the multi-mode lifting curtain 100 can completely block the light of the window 900. Before the adjusting rod 40 descends past the height position where the positioning member (such as the first positioning member 50a or the second positioning member 50b in Figure 2 ) is located, the positioning member switches to the unlocked position. The adjusting rod 40 will not be interfered by the positioning member during the descending process, so the adjusting rod 40 can smoothly descend to the lower edge 902 of the window 900. Since the length dimension of the light-blocking section 32 along the stretching direction F1 is slightly longer than the dimension of the opening of the window 900 in height, the light-blocking section 32 can completely block the light of the window 900. When full lighting through the window 900 is required, only the light-transmitting section 31 and the light-blocking section 32 of the curtain cloth 30 need to be wound around the outer periphery of the reel 22.

[0070] Specifically, combined with Figure 4A and Figure 8 shown, the junction 301 is the transition position between the light-transmitting section 31 and the light-blocking section 32.

[0071] In some embodiments, combined with Figure 1 and Figure 2As shown, the support members 21 are provided in pairs. One end of the reel 22 is mounted on one of the support members 21, and the other end of the reel 22 is mounted on the other support member 21. In some embodiments, the height of the reel 22 is slightly higher than the upper edge 901 of the window 900, so as to avoid light leakage from the gap between the upper edge 901 of the window 900 and the light-shielding section 32 when the light-shielding section 32 fully shields the window 900.

[0072] In some embodiments, to prevent the curtain cloth 30 from driving the reel 22 to rotate in the release direction under the gravity of the weight 60, the rotation of the reel 22 is a damped rotation. In some embodiments, in combination Figure 1 As shown, the reel 22 rotates under the traction of the adjustment zipper 23, and when the adjustment zipper 23 stops being pulled, the reel 22 is in a stable angle.

[0073] In some embodiments, the curtain cloth 30 can be made of a flame-retardant fabric.

[0074] In some embodiments, the light-transmitting section 31 may be provided with a light-transmitting area and a non-light-transmitting area. Outdoor natural light can pass through the light-transmitting area, and the area of the light-transmitting area of the light-transmitting section 31 can be larger than the area of the non-light-transmitting area. In some embodiments, the light-transmitting section 31 can also be formed by making hollow-outs on a non-light-transmitting fabric. In some embodiments, in combination Figure 5A and Figure 6A As shown, the light-transmitting section 31 is made of a mesh fabric.

[0075] In some embodiments, the light transmittance of the light-transmitting section 31 is greater than that of the light-shielding section 32. In some embodiments, the weaving density of the light-transmitting section 31 is less than the weaving density of the light-shielding section 32. In some embodiments, the light-transmitting section 31 is made of a transparent material or a translucent material, and the light-shielding section 32 is made of a translucent material or an opaque material.

[0076] In some embodiments, in combination Figures 3A to 4B As shown, the first positioning member 50a and the second positioning member 50b are rotatably provided, so as to be able to switch between a locked position and an unlocked position. Specifically, the first positioning member 50a and the second positioning member 50b can be mounted on the mounting surface 903 near the window 900 through a rotating shaft member. When the first positioning member 50a rotates around the rotating shaft member, it can switch between the locked position and the unlocked position.

[0077] In combination Figures 5A - 6B As shown, in some embodiments, the positioning member (such as Figure 6A , 6BThe first positioning member 50a or the second positioning member 50b) is provided with a semi-open space 51 with an opening facing a direction that can be rotationally adjusted. Specifically, when the positioning member is in the unlocked position, the adjusting rod 40 can freely pass through the semi-open space 51. When the positioning member is in the locked position, when the adjusting rod 40 descends to the height of the positioning member, it is restricted by the boundary surface of the semi-open space 51, so that the adjusting rod 40 stays at the height where the positioning member is located, that is, the stopping position. In this embodiment, in combination with Figure 6B As shown, the cross-sectional shape of the second positioning member 50b is generally U-shaped.

[0078] In some embodiments, in combination with Figure 3B As shown, the positioning member (such as Figure 3A , 3B the first positioning member 50a or the second positioning member 50b in Figure 3B As shown, the cross-sectional shape of the first positioning member 50a is generally L-shaped.

[0079] In some embodiments, in combination with Figure 3B and Figure 6B As shown, the boundary surface of the semi-open space 51 includes a side shift limiting boundary surface 511 and a descent limiting boundary surface 512. The two side shift limiting boundary surfaces 511 are arranged oppositely. The descent limiting boundary surface 512 is arranged between the two side shift limiting boundary surfaces 511. In some embodiments, in combination with Figure 3B As shown, when the first positioning member 50a is in the locked position and the adjusting rod 40 is accommodated in the semi-open space 51, the adjusting rod 40 is resisted by the descent limiting boundary surface 512, so as to limit the descent of the adjusting rod 40. In the horizontal direction perpendicular to the length direction of the adjusting rod 40, the movement of the adjusting rod 40 in this direction is restricted by the side shift limiting boundary surface 511, so that the adjusting rod 40 can be stabilized in the semi-open space 51. In some embodiments, in combination with Figure 2 and Figure 3B As shown, when the second positioning member 50b is in the unlocked position, the side shift limiting boundary surface 511 and the descent limiting boundary surface 512 are respectively perpendicular to the horizontal plane, and the descent limiting boundary surface 512 is farther from the center of the adjusting rod 40 than the side shift limiting boundary surface 511, so that the adjusting rod 40 can pass through between the two opposite side shift limiting boundary surfaces 511.

[0080] In some embodiments, in combination with Figure 6B As shown, for the positioning member (such as Figure 6A , 6BWhen there is a semi-open space 51 in the first positioning member 50a or the second positioning member 50b), both the lateral displacement limiting boundary surface 511 and the downward displacement limiting boundary surface 512 are formed by the second positioning member 50b. In some other embodiments, referring to Figure 3B as shown, when the positioning member (such as Figure 3A , 3B the first positioning member 50a or the second positioning member 50b in Figure 2 and the mounting surface 903 jointly enclose a semi-open space 51, one of the lateral displacement limiting boundary surfaces 511 is formed by the mounting surface 903, and the other lateral displacement limiting boundary surface 511 and the downward displacement limiting boundary surface 512 are formed by the first positioning member 50a. Referring to Figure 2 as shown, when the positioning member (such as

[0081] the first positioning member 50a or the second positioning member 50b in Figure 7A is in the unlocked position, the end 41 of the adjusting rod 40 passes through the semi-open space 51. Since the length of the end 41 of the adjusting rod 40 is small, the semi-open space 51 only needs to allow the end 41 of the adjusting rod 40 to pass through, thereby reducing the volume requirement for the semi-open space 51. Figure 7B In some embodiments, referring to

[0082] and Figure 7A as shown, the positioning member 50 is slidably arranged between the locked position and the unlocked position. In some embodiments, the positioning member 50 can be installed on the mounting surface 903 near the window 900 through a guiding member, such as a slide rail. The positioning member 50 is slidably engaged with the guiding member. In some embodiments, the positioning member 50 is slidably arranged between the locked position and the unlocked position in the horizontal direction. Specifically, since the angle of the positioning member 50 is limited by the guiding member, the positioning member 50 maintains a stable angle when sliding between the locked position and the unlocked position, so that the positioning member 50 can provide support for the adjusting rod 40 in the locked position. In some embodiments, the sliding direction of the positioning member 50 can be parallel to the length direction of the adjusting rod 40. In some other embodiments, by opening a buried space for the positioning member 50 on the mounting surface 903, the sliding direction of the positioning member 50 can be perpendicular to the mounting surface 903. Figure 7B In some embodiments, referring to

[0083] andFigure 7A and Figure 7B As shown in Figure 7B , for two positioning members 50 arranged in pairs, both are arranged at the same height. In some embodiments, the horizontal distance between the two positioning members 50 at the unlocking position is not less than the horizontal length of the adjusting rod 40, so as to avoid interference between the positioning member 50 and the descending path S1 of the adjusting rod 40 at the unlocking position, and the adjusting rod 40 can descend through between the two positioning members 50. In some embodiments, the length direction of the adjusting rod 40 and the length direction of the falling body 60 are respectively parallel to the horizontal direction. The length of the falling body 60 is less than the length of the adjusting rod 40, so as to avoid the descent of the falling body 60 being affected by the positioning member 50. In some embodiments, the distance between the two positioning members 50 at the locking position is greater than the length of the falling body 60.

[0084] In some embodiments, in combination with Figure 1 and Figure 2 As shown in Figure 2 , at least two pairs of positioning members are distributed at different heights along the descending path S1 of the adjusting rod 40. Specifically, at least two pairs of positioning members are distributed at different stopping positions along the descending path S1 of the adjusting rod 40. In combination with Figure 2 As shown in Figure 2 , when all the positioning members are in the unlocking position, the light-shielding section 32 can be used to fully shield the window 900. In combination with Figure 3A and Figure 5A As shown in Figure 5A , by adjusting one pair of positioning members to the locking position and the other positioning members to the unlocking position, the adjusting rod 40 can be stopped from descending at the corresponding height, so that the light-shielding section 32 forms different folding states, or the junction 301 between the light-shielding section 32 and the light-transmitting section 31 appears at different heights.

[0085] In some embodiments, the height distance between one pair of positioning members (such as the first positioning member 50a in Figure 3A , 4A ) and the lower edge 902 of the window 900 corresponds to 20% to 30% of the height dimension of the window 900. Specifically, in combination with Figures 3A to 4B As shown in Figures 3A to 4B , the height distance between a pair of first positioning members 50a and the lower edge 902 of the window 900 corresponds to 25% of the height dimension of the window 900. Assuming the height dimension of the window 900 is L, when the first positioning member 50a is in the locking position, the adjusting rod 40 stays at the height corresponding to the first positioning member 50a. When the relative descending distance of the falling body 60 with respect to the adjusting rod 40 is greater than and less than , since the height of the falling body 60 is greater than the lower edge 902 of the window 900, a small section of daylighting or ventilation space is formed between the falling body 60 and the lower edge 902 of the window 900 in the height direction, and at the same time, it will not cause an obvious impact on indoor privacy. When the relative descending distance of the falling body 60 with respect to the adjusting rod 40 is greater than and less than In the case of , since the length of the light-shielding section 32 along the stretching direction F1 is approximately L, the height of the junction 301 is lower than the upper edge 901 of the window 900, and the distance between the junction 301 and the upper edge 901 of the window 900 in the height direction is greater than zero and less than The light-transmitting section 31 is located between the upper edge 901 of the window 900 and the junction 301 in the height direction, so that outdoor natural light can enter the room through the light-transmitting section 31.

[0086] Combined with Figure 3A As shown in Figure 3A , when the descending distance of the falling body 60 relative to the adjusting rod 40 is equal to In the case of , the falling body 60 is at a position upward from the lower edge 902 of the window 900 by The junction 301 is at a position downward from the upper edge 901 of the window 900 by As a result, two light-transmitting intervals are formed in the upper and lower parts of the window 900 respectively, and the sizes of the two light-transmitting intervals in the height direction are equal, both being One of the light-transmitting intervals is adjacent to the upper edge 901 of the window 900, and the other light-transmitting interval is adjacent to the lower edge 902 of the window 900. Therefore, a relatively large area of the middle of the window 900 can still be kept blocked.

[0087] Combined with Figure 4A As shown in Figure 4A , when the descending distance of the falling body 60 relative to the adjusting rod 40 is equal to In the case of , the height of the falling body 60 is the same as the height of the lower edge 902 of the window 900, that is, the lower part is fully light-shielded, and the distance between the upper junction 301 and the upper edge 901 of the window 900 in the height direction is Therefore, a quarter of the area of the upper part of the window has a corresponding light-transmitting part and can let in outdoor natural light.

[0088] In some embodiments, the height distance between one pair of positioning members (such as the second positioning member 50b in Figure 5A , 6A ) and the lower edge 902 of the window 900 corresponds to 40% to 60% of the size of the window 900 in height. Specifically, combined with Figures 5A to 6B As shown in Figures 5A to 6B , the height distance between the second positioning member 50b and the lower edge 902 of the window 900 corresponds to 50% of the size of the window 900 in height. In some embodiments, when the positioning member 50b is in the locked position, the adjusting rod 40 stays at the height corresponding to the positioning member 50b. When the descending distance of the falling body 60 relative to the adjusting rod 40 is greater than Small and less than In this case, since the height of the falling body 60 is greater than the lower edge 902 of the window 900, a lighting or ventilation space is formed between the falling body 60 and the lower edge 902 of the window 900 in the height direction, while maintaining a certain degree of privacy indoors. The height of the junction 301 is lower than the upper edge 901 of the window 900, and the distance between the junction 301 and the upper edge 901 of the window 900 in the height direction is greater than zero and less than The light-transmitting section 31 is located between the upper edge 901 of the window 900 and the junction 301 in the height direction, so that natural outdoor light can enter the room through the light-transmitting section 31.

[0089] Combined with Figure 5A As shown, when the descending distance of the falling body 60 relative to the adjusting rod 40 is equal to In this case, the falling body 60 is at a position upward from the lower edge 902 of the window 900. The junction 301 is at a position downward from the upper edge 901 of the window 900, thereby forming two light-transmitting intervals in the upper and lower parts of the window 900 respectively, and the sizes of the two light-transmitting intervals in the height direction are equal, both being One of the light-transmitting intervals is adjacent to the upper edge 901 of the window 900, and the other light-transmitting interval is adjacent to the lower edge 902 of the window 900. Therefore, the middle of the window 900 is kept with a relatively small area blocked.

[0090] Combined with Figure 6A As shown, when the descending distance of the falling body 60 relative to the adjusting rod 40 is equal to In this case, the height of the falling body 60 is the same as the height of the lower edge 902 of the window 900. At this time, the lower part of the window 900 is fully shaded, and the distance between the junction 301 of the curtain 30 and the upper edge 901 of the window 900 in the height direction is Therefore, half of the area of the window has a corresponding light-transmitting part and can let in more natural outdoor light.

[0091] In some embodiments, combined with Figure 8 As shown, the width of the through groove 42 is greater than the thickness of the light-shielding section 32. The falling body 60 is slidably disposed between the end edge 321 of the light-shielding section 32 away from the light-transmitting section 31 and the through groove 42. Specifically, the width direction of the through groove 42 is perpendicular to the length direction of the adjusting rod 40 and is generally parallel to the horizontal plane. In some embodiments, the width of the through groove 42 is about 3 mm.

[0092] Limited by the size of the through groove 42, the falling body 60 cannot pass through the through groove 42, and the falling body 60 is restricted to one side of the adjusting rod 40. When the adjusting rod 40 is subjected to a positioning member (such as Figure 2 the first positioning member 50a, the second positioning member 50b in Figure 7AWhen the positioning member 50 is bearing, the falling body 60 is located below the adjusting rod 40. In some embodiments, the falling body 60 is slidably sleeved outside the light-shielding section 32.

[0093] In some embodiments, in combination Figure 10 As shown, the end of the light-shielding section 32 forms a structure that is folded on the inner and outer sides of the adjusting rod 40, and this part of the light-shielding section 32 presents a shape that is hooked on the adjusting rod 40 in the cross-section. In some embodiments, a part of the end of the light-shielding section 32 is adhesively engaged with the outer side surface of the adjusting rod 40. In some embodiments, in combination Figure 9A and Figure 9B As shown, the end of the light-shielding section 32 far from the light-transmitting section 31 is fixedly clamped inside the adjusting rod 40. In some other embodiments, the edge 321 of the light-shielding section 32 far from the light-transmitting section 31 is positioned and connected to the adjusting rod 40 by nails or other fasteners.

[0094] In some embodiments, in combination Figure 8 and Figure 9A As shown, the falling body 60 includes a main falling member 61 and a rolling contact member 62a rotatably connected to the main falling member 61. The light-shielding section 32 movably passes between the rolling contact member 62a and the main falling member 61. In some embodiments, the weight of the main falling member 61 is greater than the weight of the rolling contact member 62a. When the reel 22 rotates in the direction of releasing the curtain 30 and the adjusting rod 40 is borne on the positioning member, as the curtain 30 descends, the falling body 60 slides under the action of gravity, and each part of the light-shielding section 32 sequentially passes between the rolling contact member 62a and the main falling member 61 and reaches the other side of the rolling contact member 62a. As the light-shielding section 32 winds around the outer periphery of the rolling contact member 62a, the rolling contact member 62a rotates relative to the main falling member 61 under the drive of the light-shielding section 32. Therefore, a rolling friction fit is formed between the rolling contact member 62a and the curtain 30, which can reduce the frictional loss between the rolling contact member 62a and the curtain 30 and make the curtain 30 more durable. In some embodiments, when the light-shielding section 32 is folded in the horizontal direction, the rolling contact member 62a is borne on the light-shielding section 32, and the main falling member 61 is suspended below the light-shielding section 32 through the rolling contact member 62a.

[0095] In some embodiments, in combination Figure 9A As shown, the rolling contact member 62a is rod-shaped and rotatably inserted into the main falling member 61. In some embodiments, there is a bearing between the end 41 of the rolling contact member 62a and the main falling member 61. In some embodiments, in combination Figure 8 As shown, the rolling contact member 62b is sleeve-shaped and rotatably sleeved on the outer periphery of a rod-shaped member 621, and the rod-shaped member 621 is connected to the main falling member 61.

[0096] In some embodiments, in combinationFigure 8 and Figure 9A As shown in Figure 9A , a groove 611 is formed in the main pendant 61. The rolling contact member 62a is received in the groove 611. The groove 611 is formed between two width-limiting side surfaces 612 of the main pendant 61. The distance between the two width-limiting side surfaces 612 is greater than the outer diameter of the rolling contact member 62a. Specifically, there is a spaced arrangement between the width-limiting side surface 612 and the rolling contact member 62a. Since the rolling contact member 62a is in the groove 611, when the light-shielding section 32 winds around the outer periphery of the rolling contact member 62a, the distance between the two overlapping parts of the light-shielding section 32 in the horizontal direction is restricted by the two width-limiting side surfaces 612, so that the distance between the two overlapping parts of the light-shielding section 32 in the horizontal direction can be reduced, making the curtain cloth 30 have a straighter form, which helps to maintain a good shape correspondence between the curtain cloth 30 and the window 900 and ensures the fitting effect between the light-shielding section 32 and the side of the window 900. In some embodiments, the opening of the groove 611 is formed between the outer boundaries of the two width-limiting side surfaces 612.

[0097] In some embodiments, in combination with Figure 9B As shown in Figure 9B , the lower pendant 60 is in the shape of an integral ring and surrounds the light-shielding section 32. Specifically, a sliding friction fit is formed between the lower pendant 60 and the surface of the light-shielding section 32.

[0098] The above embodiments are only descriptions of the preferred embodiments of the present application and do not limit the scope of the present application. Without departing from the design spirit of the present application, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A multi-mode lifting curtain, characterized in that, Comprising: A winding assembly, including a support member and a reel rotatably mounted on the support member; A curtain, which is wound around the outer periphery of the reel wholly or partially; the curtain includes a light-transmitting section and a light-blocking section; the light-transmitting section and the light-blocking section are connected along the stretching direction of the curtain; the light-blocking section is arranged before the light-transmitting section along the stretching direction; An adjusting rod, fixedly connected to one end of the light-blocking section away from the light-transmitting section; the middle part of the light-blocking section is slidably inserted through a through groove of the adjusting rod; as the curtain rises and falls, the adjusting rod can move along a descending path, and the descending path has an upper limit position and a lower limit position; A falling weight, slidably connected to a part of the light-blocking section, and the part is located between the through groove of the adjusting rod and the end of the light-blocking section away from the light-transmitting section; and At least a pair of positioning members, located at a stop position between the upper limit position and the lower limit position of the descending path of the adjusting rod, and the positioning member has a locking position and an unlocking position; Wherein, when the curtain rises, the falling weight abuts against the adjusting rod and rises together with the curtain; When the curtain descends, when the positioning member is in the locking position, it can position the adjusting rod at the stop position, and at this time, the falling weight can continue to descend; when the positioning member is in the unlocking position, the adjusting rod can smoothly cross the stop position.

2. The multi-mode lifting curtain according to claim 1, characterized in that The positioning member is slidably arranged between the locking position and the unlocking position; or, the positioning member is rotatably arranged between the locking position and the unlocking position.

3. The multi-mode lifting curtain according to claim 1, characterized in that The positioning member is rotatably arranged between the locking position and the unlocking position, and a semi-open space with an opening direction that can be rotationally adjusted is arranged inside the positioning member, or, the positioning member and the mounting surface jointly enclose a semi-open space with an opening direction that can be rotationally adjusted.

4. The multi-mode lifting curtain according to claim 3, characterized in that, The boundary surface of the semi-open space includes a side displacement limiting boundary surface and a descending limiting boundary surface; the two side displacement limiting boundary surfaces are arranged oppositely; the descending limiting boundary surface is arranged between the two side displacement limiting boundary surfaces.

5. The multi-mode lifting curtain according to claim 1, wherein When each pair of the positioning members is in the locking position, they respectively interfere with the descending paths of the two ends of the adjusting rod.

6. The multi-mode lifting curtain according to claim 5, wherein, The at least a pair of positioning members includes two pairs of positioning members, and the two pairs of positioning members are distributed at different heights along the descending path of the adjusting rod.

7. The multi-mode lifting curtain according to claim 6, wherein The height distance between one pair of the positioning members and the lower edge of the window corresponds to 20% to 30% of the height dimension of the window; and / or, the height distance between one pair of the positioning members and the lower edge of the window corresponds to 40% to 60% of the height dimension of the window.

8. The multi-mode lifting curtain according to claim 1, characterized in that, The width of the through groove is greater than the thickness of the light-blocking section.

9. The multi-mode lifting curtain according to claim 1, wherein, The falling weight includes a main falling member and a rolling contact member rotatably connected to the main falling member; the light-blocking section is movably inserted between the rolling contact member and the main falling member.

10. The multi-mode lifting curtain according to claim 9, wherein, A groove is formed inside the main falling member; the rolling contact member is accommodated in the groove; the groove is formed between two width-limiting boundary surfaces of the main falling member; the distance between the two width-limiting boundary surfaces is greater than the outer diameter of the rolling contact member.

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