A sunshade device, a glass system and a control method thereof

Abstract

The application relates to the technical field of door and window equipment, and provides a sunshade device, a glass system and a control method thereof, which comprise a frame body, a first rotating shaft rotatably arranged on the frame body, a second rotating shaft rotatably arranged on the frame body, a third rotating shaft, a long strip-shaped film body and a supporting table arranged on the frame body; one end of the film body is wound around the first rotating shaft, the other end of the film body is fixedly connected with a counterweight after passing through the top of the second rotating shaft; the third rotating shaft supports the film body between the first rotating shaft and the third rotating shaft; the weight of the third rotating shaft is greater than twice the weight of the counterweight; the first rotating shaft and the second rotating shaft are arranged in a horizontal interval mode; the counterweight can be lifted between a first height position and a second height position; when the counterweight is located at the first height position, the third rotating shaft is supported on the supporting table.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of door and window equipment, and more particularly relates to a sunshade device, a glass system and a control method thereof. BACKGROUND

[0002] Doors and windows are weak links in the overall heat transfer of buildings, and heat loss accounts for 40-50% of the total heat loss of building envelope structures, which has a great impact on building operation energy consumption.

[0003] However, traditional light-shading adjustment generally requires the overall updating or replacement of door and window curtain walls, such as the overall removal of old doors and windows and the installation of new doors and windows, which has high transformation cost and carbon emission, does not meet the low-carbon requirement, and wastes a large amount of manpower and resources.

[0004] The prior art has at least one of the following problems: (1) unable to improve the comprehensive performance of the door and window curtain wall, i.e. thermal, sound insulation, fireproofing, etc. Only from the perspective of a single performance (thermal performance is the most), measures are proposed to improve its performance, which cannot improve the comprehensive performance of the door and window curtain wall through a set of devices. (2) unable to fully adapt to changes in different weather conditions. Although the prior art considers the needs of different climates, it needs to be selected according to different climate characteristics when designing and producing, and cannot meet the changes of different climate conditions through a set of devices, thereby limiting its application range. (3) too many active shafts, high cost. When adjusting multiple films, the prior art needs to rely on multiple active shafts to achieve it, i.e. one active shaft is needed to drive one layer of film, so that the number of active shafts is too large, and the cost of the entire device is too high. SUMMARY

[0005] The present application aims to provide a sunshade device to solve the technical problem in the prior art that adjusting the sunshade device on the curtain wall requires the overall updating or replacement of the curtain wall, which wastes a large amount of manpower and resources.

[0006] To achieve the above object, the technical scheme adopted by the present application is: providing a sunshade device, comprising: a frame body, a first rotating shaft rotatably arranged on the frame body, a second rotating shaft rotatably arranged on the frame body, a third rotating shaft, a long strip-shaped film body, and a supporting table arranged on the frame body; the axis of the first rotating shaft, the axis of the second rotating shaft, and the axis of the third rotating shaft are arranged in parallel with each other; the first rotating shaft and the second rotating shaft are arranged horizontally and spaced apart; one end of the film body is wound around the first rotating shaft, and the other end of the film body is fixedly connected with a counterweight after passing over the top of the second rotating shaft; the third rotating shaft supports the film body between the first rotating shaft and the third rotating shaft; the weight of the third rotating shaft is greater than twice the weight of the counterweight; the counterweight can be raised and lowered between a first height position and a second height position; the second height position is higher than the first height position, and the second height position is lower than the top of the second rotating shaft; when the counterweight is located at the first height position, the third rotating shaft is supported on the supporting table.

[0007] Further, the axis of the first rotating shaft, the axis of the second rotating shaft, and the axis of the third rotating shaft are arranged horizontally respectively.

[0008] Further, it further comprises: a motor arranged on the frame body and used for driving the first rotating shaft to rotate.

[0009] Further, the height of the axis of the first rotating shaft and the axis of the second rotating shaft is the same.

[0010] Further, it further comprises: a guide rail arranged on the frame body; in the width direction of the film body, the two ends of the film body can slide along the guide rail, and the film body and the guide rail are in a sealed state.

[0011] Further, it further comprises: a limiting mechanism; the limiting mechanism can prevent the height of the counterweight from being higher than the second height position.

[0012] The film body comprises: a first film part, a second film part, and a third film part connected in sequence; the first film part is wound around the first rotating shaft, the counterweight is connected with the third film part, and the two ends of the second film part are connected with the first film part and the second film part; the lower part of the first rotating shaft and the second rotating shaft has a light transmission channel for light to pass through;

[0013] When the counterweight is located at the first height position, the first film part, the second film part, and the third film part are located on the light transmission channel respectively; when the first rotating shaft is rotated to raise the counterweight from the first height position to the second height position, the second film part and the third film part are located on the light transmission channel respectively;

[0014] When the counterweight has been raised to the second height position, and the first rotating shaft continues to rotate and winds up the second film part and the third film part, the film body between the first rotating shaft and the second rotating shaft can lift the third rotating shaft to a third height position above the light transmission channel.

[0015] Further, the first film part is a non-transparent film.

[0016] Further, the second film part is a partially transparent film.

[0017] Further, the third film part is a transparent film.

[0018] Further, the first film part or the second film part can reflect more than 70% of sunlight.

[0019] Further, when the counterweight is in the first height position, the haze of the first film part, the second film part, and the third film part combined together is less than 6;

[0020] And / or when the counterweight is in the second height position, the haze of the second film part and the third film part combined together is less than 6.

[0021] Further, the first film part, the second film part, and the third film part are made of a material that can withstand fire for 30 minutes;

[0022] And / or the first film part, the second film part, and the third film part combined together can reduce noise by at least 30 dB.

[0023] Further, when the counterweight switches between the first height position and the second height position, the solar heat gain coefficient of the first film part, the second film part, and the third film part combined together changes between 0.2 and 0.8.

[0024] And / or when the counterweight switches between the first height position and the second height position, the heat transfer coefficient of the first film part, the second film part, and the third film part combined together changes between 0.3 and 1.5 W / ㎡·K.

[0025] Further, the limiting mechanism includes a first limiting table and a second limiting table arranged on the frame body.

[0026] The counterweight is elongated and extends in a horizontal straight direction; the third membrane is connected to the counterweight along its extension direction; the third membrane is connected to the middle area of ​​both ends of the counterweight; the first limiting platform is located on the rising path of one end of the counterweight, and the second limiting platform is located on the rising path of the other end of the counterweight; when the counterweight is raised to the second height position, one end of the counterweight abuts against the bottom of the first limiting platform, and the other end of the counterweight abuts against the bottom of the second limiting platform.

[0027] The present invention also provides a glass system, further comprising: a glass element and the sunshade device; the membrane and the outdoor space are respectively located on both sides of the glass element.

[0028] The present invention also provides a glass system control method, comprising: the glass system;

[0029] Also includes:

[0030] S1: Prepare a time sensor, a temperature sensor, a solar radiation sensor, a driver for driving the first rotating shaft, and a controller; the time sensor determines the current season and time, and the temperature sensor helps to determine the current season; the solar radiation sensor uses the intensity of solar radiation to help determine day and night.

[0031] S2: Preset winter and summer nighttime control mode, winter daytime cloudy control mode, summer daytime sunny control mode, winter daytime sunny control mode and summer daytime cloudy control mode;

[0032] S3: The controller determines which preset control mode is being used at this time by using the signals from the time sensor, the temperature sensor, and the solar radiation sensor.

[0033] S4: When in winter / summer night control mode, the controller controls the first rotating shaft to rotate so that the membrane is fully expanded. The first membrane, the second membrane, and the third membrane together achieve the function of heat preservation and opacity, which can maximize the protection of room heat in winter and room cold in summer, and protect indoor privacy.

[0034] S5: When in the winter inter-day cloudy control mode and the summer inter-day sunny control mode, the controller controls the first rotating shaft to rotate so that the counterweight is raised to the second height position. The first membrane is stored on the first rotating shaft, and the second membrane and the third membrane are located together on the light transmission channel, so as to achieve the functions of heat preservation and light transmission in winter inter-day cloudy days, and the functions of cold preservation and sun shading in summer sunny days.

[0035] S6: When in the winter daytime sunny control mode and the summer daytime cloudy control mode, the first rotating shaft rotates to raise the counterweight to the second height position and the third rotating shaft to the third height position. The first membrane, the second membrane, and the third membrane are housed on the first rotating shaft. The first membrane, the second membrane, and the third membrane all avoid the light transmission channel, so as to maximize passive heating and lighting in winter daytime sunny weather and transparent lighting in summer daytime cloudy weather.

[0036] The beneficial effects of the sunshade device provided by the present invention are as follows: Compared with the prior art, the sunshade device provided by the present invention has a first rotating shaft rotatably mounted on a frame, and a second rotating shaft rotatably mounted on a frame; the axes of the first rotating shaft, the second rotating shaft, and the third rotating shaft are respectively arranged in parallel; in the horizontal direction, the first rotating shaft and the second rotating shaft are spaced apart; the membrane is elongated; one end of the membrane is wound around the first rotating shaft, so that when the first rotating shaft rotates in one direction, the membrane can be stored and wound around the first rotating shaft, and when the first rotating shaft rotates in another direction, the membrane can be wound around the first rotating shaft. The membrane on the first rotating shaft is released; the other end of the membrane wraps around the top of the second rotating shaft, allowing the membrane to be supported on the top of the second rotating shaft; a counterweight is suspended from the membrane wrapping around the top of the second rotating shaft, which can pull the membrane downwards; the third rotating shaft is supported on the membrane between the first and second rotating shafts, meaning the third rotating shaft can press the membrane between the first and second rotating shafts downwards; in other words, the membrane on one side of the third rotating shaft is wrapped around the first rotating shaft, and the membrane on the other side of the third rotating shaft wraps around the top of the second rotating shaft and connects to the counterweight, with the third rotating shaft supported by the first rotating shaft. The third shaft is located on the membrane between the first and second shafts, and can roll on the membrane. (This can be understood as follows: the first shaft is a first fixed pulley, the second shaft is a second fixed pulley, one end of the membrane is wound around the first fixed pulley, and the other end of the membrane is connected to the counterweight after passing through the second fixed pulley. The third shaft is a movable pulley, and is supported on the membrane between the first and second shafts, and can roll on the membrane.) The weight of the third shaft is distributed on the membrane between the first and second shafts, and the counterweight is positioned vertically downwards on the membrane on the side of the second shaft. When pulled down, the third rotating shaft also pulls the membrane on the other side of the second rotating shaft down. The weight of the third rotating shaft is more than twice that of the counterweight. When the external force is removed, the third rotating shaft will fall down and pull up the counterweight. When the third rotating shaft falls and is supported on the support platform, the counterweight remains at the first height and is suspended in the air. When the first rotating shaft rotates and the membrane is wrapped and stored on the first rotating shaft, the height of the counterweight gradually rises. During the rising process, the area of ​​membrane obstruction between the counterweight and the second rotating shaft can be changed, which is very convenient to adjust and saves manpower and resources. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A schematic diagram of a sunshade device provided in an embodiment of the present invention (the counterweight is located at a first height position, and the third rotating shaft is supported on the support platform) (the viewing direction is parallel to the extension direction of the first rotating shaft);

[0039] Figure 2 A schematic diagram of a sunshade device provided in an embodiment of the present invention (the third rotating shaft is supported on the support platform during the process of the counterweight being raised from the first height position to the second height position).

[0040] Figure 3 A schematic diagram of a sunshade device provided in an embodiment of the present invention (the counterweight is located at the second height position, and the third rotating shaft is supported on the support platform);

[0041] Figure 4 A schematic diagram of a sunshade device provided in an embodiment of the present invention (the counterweight is located at the second height position, and the third rotating shaft is located at the third height position).

[0042] The following are the labeling elements in the figure:

[0043] 1-Frame; 11-Support platform; 21-First rotating shaft; 22-Second rotating shaft; 23-Third rotating shaft; 3-Membrane body; 31-First membrane section; 32-Second membrane section; 33-Third membrane section; 4-Counterweight; 5-Light transmission channel; 6-Glass component. Detailed Implementation

[0044] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0046] It should be noted that, in the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Here, A and B can be singular or plural, respectively.

[0047] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] Please refer to the following: Figures 1 to 4 The sunshade device provided by the present invention will now be described. The sunshade device includes: a frame 1, a first rotating shaft 21 rotatably mounted on the frame 1, a second rotating shaft 22 rotatably mounted on the frame 1, a third rotating shaft 23 rotatably mounted on the frame 1, a strip-shaped membrane 3, and a support platform 11 mounted on the frame 1; the axes of the first rotating shaft 21, the second rotating shaft 22, and the third rotating shaft 23 are arranged parallel to each other; the first rotating shaft 21 and the second rotating shaft 22 are arranged horizontally spaced apart; one end of the membrane 3 is wrapped around the first rotating shaft 21, and the other end of the membrane 3 passes over the top of the second rotating shaft 22 and is fixedly connected to a counterweight 4; the third rotating shaft 23 is supported on the membrane 3 between the first rotating shaft 21 and the third rotating shaft 23; the weight of the third rotating shaft 23 is greater than twice the weight of the counterweight 4; the counterweight 4 can be raised and lowered between a first height position and a second height position; the second height position is higher than the first height position and lower than the top of the second rotating shaft 22; when the counterweight 4 is at the first height position, the third rotating shaft 23 is supported on the support platform 11.

[0050] Thus, the first rotating shaft 21 is rotatably mounted on the frame 1, and the second rotating shaft 22 is rotatably mounted on the frame 1; the axes of the first rotating shaft 21, the second rotating shaft 22, and the third rotating shaft 23 are respectively arranged parallel; in the horizontal direction, the first rotating shaft 21 and the second rotating shaft 22 are spaced apart; the membrane body 3 is elongated; one end of the membrane body 3 is wound around the first rotating shaft 21, so that when the first rotating shaft 21 rotates in one direction, the membrane body 3 can be contained and wound around the first rotating shaft 21, and when the first rotating shaft 21 rotates in another direction, the membrane body 3 wound around the first rotating shaft 21 can be released; the other end of the membrane body 3 passes over the top of the second rotating shaft 22, so that the membrane body 3 can... The third shaft 23 is supported on the top of the second rotating shaft 22; a counterweight 4 is suspended on the membrane 3 that passes over the top of the second rotating shaft 22, and the counterweight 4 can pull the membrane 3 downward; the third rotating shaft 23 is supported on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22, that is, the third rotating shaft 23 can press the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 downward; that is, the membrane 3 on one side of the third rotating shaft 23 is wrapped around the first rotating shaft 21, and the membrane 3 on the other side of the third rotating shaft 23 passes over the top of the second rotating shaft 22 and is connected to the counterweight 4. The third rotating shaft 23 is supported on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22, and the third rotating shaft 23 can be placed on the membrane 3. Rolling; (This can be understood as follows: the first rotating shaft 21 is the first fixed pulley, the second rotating shaft 22 is the second fixed pulley, one end of the membrane 3 is wound around the first fixed pulley, and the other end of the membrane 3 is connected to the counterweight 4 after passing through the second fixed pulley. The third rotating shaft 23 is a movable pulley, and the third rotating shaft 23 is supported on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22, and the third rotating shaft 23 can roll on the membrane 3;) The weight of the third rotating shaft 23 is distributed on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22. The counterweight 4 pulls the membrane 3 on one side of the second rotating shaft 22 downwards, and the third rotating shaft 23 also pulls the membrane 3 on the other side of the second rotating shaft 22 downwards. The weight of the third rotating shaft 23 is more than twice that of the counterweight 4. When the external force is removed, the third rotating shaft 23 will fall downwards and pull up the counterweight 4. When the third rotating shaft 23 falls and is supported on the support platform 11, the counterweight 4 remains at the first height and is suspended in the air. When the first rotating shaft 21 rotates (in one embodiment, the rotation of the first rotating shaft 21 can be done manually or driven by an external motor) and the membrane 3 is wrapped and stored on the first rotating shaft 21, the height of the counterweight 4 gradually rises. During the raising process, the area covered by the membrane 3 between the counterweight 4 and the second rotating shaft 22 can be changed, which is very convenient to adjust and saves manpower and resources.

[0051] In one embodiment, the top surface of the support platform 11 is a plane, and the third rotating shaft 23 can be supported on the top surface of the support platform 11.

[0052] In one embodiment, the first rotating shaft 21 and the third rotating shaft 23 are spaced apart in the vertical direction. In another embodiment, the second rotating shaft 22 and the third rotating shaft 23 are spaced apart in the vertical direction.

[0053] In one embodiment, the third rotating shaft 23 may be supported on the support platform 11 by directly supporting the support platform 11. In another embodiment, the third rotating shaft 23 may be supported on the support platform 11 indirectly through the membrane 3 (in the vertical direction, the membrane 3 is sandwiched between the support platform 11 and the third rotating shaft 23).

[0054] In one embodiment, the membranes 3 on both sides of the third rotating shaft 23 extend in the vertical direction. In another embodiment, the membranes 3 on both sides of the third rotating shaft 23 are V-shaped with their openings facing upwards.

[0055] In one embodiment, the weight ratio of the third rotating shaft 23 to the counterweight 4 can be varied, as long as the counterweight 4 cannot lift the third rotating shaft 23 under its own weight when the external force is removed.

[0056] In one embodiment, the first rotating shaft 21 is cylindrical and rotates about its own central axis of symmetry.

[0057] In one embodiment, the second rotating shaft 22 is cylindrical and rotates about its own central axis of symmetry.

[0058] In one embodiment, the third shaft 23 is cylindrical and rotates about its own central axis of symmetry.

[0059] In one embodiment, the axis of the first rotating shaft 21 is a straight line. In one embodiment, the axis of the first rotating shaft 21 is horizontal. In one embodiment, the axis of the second rotating shaft 22 is a straight line. In one embodiment, the axis of the second rotating shaft 22 is horizontal. In one embodiment, the axis of the third rotating shaft 23 is a straight line. In one embodiment, the axis of the third rotating shaft 23 is horizontal.

[0060] Further, please refer to Figures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, it further includes: a motor mounted on the frame 1 for driving the rotation of the first rotating shaft 21. Thus, controlling the rotation of the first rotating shaft 21 via the motor is very convenient.

[0061] Further, please refer to Figures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, the axis of the first rotating shaft 21 and the axis of the second rotating shaft 22 are at the same height.

[0062] Further, please refer toFigures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, it further includes: a guide rail disposed on the frame 1; in the width direction of the membrane 3, both ends of the membrane 3 can slide along the guide rail and the membrane 3 and the guide rail are sealed together. In this way, the sealing performance is improved.

[0063] Further, please refer to Figures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, it further includes: a limiting mechanism; the limiting mechanism can prevent the height of the counterweight 4 from exceeding the second height position; the membrane body 3 includes: a first membrane portion 31, a second membrane portion 32, and a third membrane portion 33 connected in sequence; the first membrane portion 31 is wound around the first rotating shaft 21, the counterweight 4 is connected to the third membrane portion 33, and the two ends of the second membrane portion 32 are connected to the first membrane portion 31 and the second membrane portion 32; a light transmission channel 5 for light to pass through is provided below the first rotating shaft 21 and the second rotating shaft 22; when the counterweight 4 is at the first height position... At the same time, the first membrane 31, the second membrane 32, and the third membrane 33 are respectively located on the optical transmission channel 5; when the first rotating shaft 21 is rotated to raise the counterweight 4 from the first height position to the second height position, the second membrane 32 and the third membrane 33 are respectively located on the optical transmission channel 5; when the counterweight 4 has been raised to the second height position, and the first rotating shaft 21 continues to rotate and wrap around and store the second membrane 32 and the third membrane 33, the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 can raise the third rotating shaft 23 to the third height position above the optical transmission channel 5. Thus, when the counterweight 4 is at the first height position, the first membrane 31, the second membrane 32, and the third membrane 33 are all located on the light transmission channel 5 to block the light; when the counterweight 4 is at the second height position, the counterweight 4 is located above the light transmission channel 5, and the second membrane 32 and the third membrane 33 are located on the light transmission channel 5 to block the light; when the counterweight 4 rises to the second height position, the limiting mechanism can prevent the counterweight 4 from rising further. If the first rotating shaft 21 continues to house the membrane 3, while the counterweight 4 maintains its own height position at the second height position, as the membrane 3 is housed, the length of the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 will gradually shorten. When the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 shortens, the position of the third rotating shaft 23 will be raised until the third rotating shaft 23 rises to the third height position. At this point, the first membrane 31, the second membrane 32, and the third membrane 33 all avoid the light transmission channel 5 to prevent blocking the light.

[0064] In one embodiment, the optical transmission channel 5 is a space through which light passes. In another embodiment, the optical transmission channel 5 extends in a horizontal straight line.

[0065] Further, please refer to Figures 1 to 4In one specific embodiment of the sunshade device provided by the present invention, the first membrane portion 31 is a non-transparent membrane. This facilitates the blocking of light.

[0066] In one embodiment, the first membrane portion 31 is a fabric curtain. Thus, it serves the basic functional purposes of decoration, fireproofing, and sound insulation.

[0067] Further, please refer to Figures 1 to 4 In one specific embodiment of the sunshade device provided by the present invention, the second membrane portion 32 is a partially transparent membrane. This allows some light to pass through.

[0068] In one embodiment, the second membrane portion 32 is a gauze curtain. This provides additional visual and aesthetic functionality.

[0069] Further, please refer to Figures 1 to 4 In one specific embodiment of the sunshade device provided by the present invention, the third membrane portion 33 is a transparent membrane. This allows light to pass through.

[0070] In one embodiment, the third membrane portion 33 is a thin-film curtain. In another embodiment, the third membrane portion 33 is a low-emissivity film or a reflective film. Thus, it provides energy-saving functions such as heat preservation, sun shading, and light transmission.

[0071] Further, please refer to Figures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, the first membrane portion 31 or the second membrane portion 32 can reflect more than 70% of sunlight. In this way, a large amount of solar radiation is reflected away through full-spectrum reflection, reducing indoor solar radiation heat gain.

[0072] Further, please refer to Figures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, when the counterweight 4 is located at the first height position, the haze of the first membrane 31, the second membrane 32, and the third membrane 33 combined is less than 6. This ensures the imaging capability of the entire system and meets the communication needs of indoor personnel with the outdoor scenery.

[0073] In one embodiment, when the counterweight 4 is at the second height position, the haze of the second membrane portion 32 and the third membrane portion 33 combined is less than 6. This ensures the imaging capability of the entire system and meets the communication needs of indoor personnel and the outdoor scenery.

[0074] Further, please refer to Figures 1 to 4 In one specific embodiment of the sunshade device provided by the present invention, the first membrane portion 31, the second membrane portion 32, and the third membrane portion 33 are made of a material that can withstand fire for 30 minutes. This improves the heat preservation effect.

[0075] In one embodiment, the first membrane portion 31, the second membrane portion 32, and the third membrane portion 33, when combined, can reduce noise by at least 30 dB, thus improving sound insulation.

[0076] Further, please refer to Figures 1 to 4 As a specific embodiment of the shading device provided by the present invention, when the counterweight 4 switches between the first height position and the second height position, the solar thermal gain coefficient of the first membrane 31, the second membrane 32, and the third membrane 33 combined varies between 0.2 and 0.8. In this way, a balance can be maintained between shading and heat retention.

[0077] In one embodiment, when the counterweight 4 switches between a first height position and a second height position, the combined heat transfer coefficient of the first membrane portion 31, the second membrane portion 32, and the third membrane portion 33 varies between 0.3 and 1.5 W / m²·K. This maintains a balance between shading and heat retention.

[0078] Further, please refer to Figures 1 to 4 As a specific embodiment of the sunshade device provided by the present invention, the limiting mechanism includes: a first limiting platform and a second limiting platform disposed on the frame 1; the counterweight 4 is elongated and extends in a horizontal straight direction; a third membrane 33 is connected to the counterweight 4 along the extending direction of the counterweight 4; the third membrane 33 is connected to the middle area of ​​both ends of the counterweight 4; the first limiting platform is located on the rising path of one end of the counterweight 4, and the second limiting platform is located on the rising path of the other end of the counterweight 4; when the counterweight 4 is raised to the second height position, one end of the counterweight 4 abuts against the bottom of the first limiting platform, and the other end of the counterweight 4 abuts against the bottom of the second limiting platform.

[0079] Please see Figures 1 to 4The present invention also provides a glass system, further comprising: a glass element 6 and a sunshade device; a membrane 3 and an outdoor space are respectively located on both sides of the glass element 6. Thus, due to the adoption of the aforementioned sunshade device, a first rotating shaft 21 is rotatably mounted on a frame 1, and a second rotating shaft 22 is rotatably mounted on the frame 1; the membrane 3 is elongated; one end of the membrane 3 is wound around the first rotating shaft 21, allowing the membrane 3 to be stored and wound around the first rotating shaft 21 when the first rotating shaft 21 rotates in one direction, and releasing the membrane 3 wound around the first rotating shaft 21 when the first rotating shaft 21 rotates in the other direction; the other end of the membrane 3 passes over the top of the second rotating shaft 22, allowing the membrane 3 to be supported on the top of the second rotating shaft 22; a counterweight 4 is suspended from the membrane 3 passing over the top of the second rotating shaft 22, and the counterweight 4 can pull the membrane 3 downwards; a third rotating shaft 23 supports the first rotating shaft 21 and the second rotating shaft 22. On the membrane 3 between the rotating shafts 22, i.e., the third rotating shaft 23 can press the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 downwards; that is, the membrane 3 on one side of the third rotating shaft 23 is wrapped around the first rotating shaft 21, and the membrane 3 on the other side of the third rotating shaft 23 passes over the top of the second rotating shaft 22 and is connected to the counterweight 4. The third rotating shaft 23 is supported on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22, and the third rotating shaft 23 can roll on the membrane 3; (This can be understood as: the first rotating shaft 21 is the first fixed pulley, the second rotating shaft 22 is the second fixed pulley, one end of the membrane 3 is wrapped around the first fixed pulley, the other end of the membrane 3 passes through the second fixed pulley and is connected to the counterweight 4, and the third rotating shaft 23 is a movable pulley). The third rotating shaft 23 is supported on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22, and the third rotating shaft 23 can roll on the membrane 3; the weight of the third rotating shaft 23 is distributed on the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22, the counterweight 4 pulls the membrane 3 on one side of the second rotating shaft 22 downwards, and the third rotating shaft 23 also pulls the membrane 3 on the other side of the second rotating shaft 22 downwards. The weight of the third rotating shaft 23 is more than twice that of the counterweight 4. When the external force is removed, the third rotating shaft 23 will fall downwards and pull up the counterweight 4; when the third rotating shaft 23 falls and is supported on the support platform 11, the counterweight 4 remains at the first height position and is suspended in the air; when the first rotating shaft 21 rotates... (In one embodiment, the rotation of the first rotating shaft 21 can be manual or driven by an external motor) and when the membrane 3 is wound and stored on the first rotating shaft 21, the height of the counterweight 4 gradually increases; during the raising process, the area blocked by the membrane 3 between the counterweight 4 and the second rotating shaft 22 can be changed, which is very convenient to adjust and saves manpower and resources; when the counterweight 4 is at the first height position, the first membrane 31, the second membrane 32, and the third membrane 33 are all located on the light transmission channel 5 to block the light; when the counterweight 4 is at the second height position, the counterweight 4 is located above the light transmission channel 5, and the second membrane 32 and the third membrane 33 are located on the light transmission channel 5 to block the light;When the counterweight 4 rises to the second height position, the limiting mechanism can prevent the counterweight 4 from rising further. If the first rotating shaft 21 continues to retract the membrane 3, while the counterweight 4 maintains its own height position at the second height position, as the membrane 3 is retracted, the length of the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 will gradually shorten. When the membrane 3 between the first rotating shaft 21 and the second rotating shaft 22 shortens, the position of the third rotating shaft 23 will be raised until the third rotating shaft 23 rises to the third height position. At this point, the first membrane portion 31, the second membrane portion 32, and the third membrane portion 33 all avoid the light transmission channel 5 to prevent light blockage.

[0080] Please see Figures 1 to 4 Figures 1 to 4 The present invention also provides a glass system control method, comprising: the glass system; further comprising: S1: a time sensor, a temperature sensor, a solar radiation sensor, a driver for driving the first rotating shaft 21 to rotate, and a controller; the current season and time are obtained according to the time sensor, and the current season is determined by the temperature sensor; the solar radiation sensor determines day and night by the solar radiation intensity; S2: preset winter and summer night control modes, winter daytime cloudy control mode, summer daytime sunny control mode, winter daytime sunny control mode, and summer daytime cloudy control mode; S3: the controller determines which preset control mode is being used by means of the signals from the time sensor, temperature sensor, and solar radiation sensor; S4: when in the winter and summer night control mode, the controller controls the first rotating shaft 21 to rotate so that the membrane 3 is fully expanded, and the first membrane 31, the second membrane 32, and the third membrane 33 together achieve the function of heat preservation and opacity; this can maximize the preservation of room heat in winter and ensure that heat is not lost in summer. The room's cooling capacity does not leak out, and indoor privacy is protected. S5: When in the winter daytime cloudy control mode and the summer daytime sunny control mode, the controller controls the first rotating shaft 21 to rotate so that the counterweight 4 is raised to the second height position. The first membrane 31 is housed on the first rotating shaft 21, and the second membrane 32 and the third membrane 33 are located together on the light transmission channel 5 to achieve the functions of heat preservation, heat insulation, and light blocking; achieving the functions of heat preservation and light transmission in winter daytime cloudy days, and heat preservation and sun shading in summer sunny days; S6: When in In the winter daytime sunny control mode and the summer daytime cloudy control mode, the first rotating shaft 21 rotates to raise the counterweight 4 to the second height position and the third rotating shaft 23 to the third height position. The first membrane 31, the second membrane 32, and the third membrane 33 are housed on the first rotating shaft 21. The first membrane 31, the second membrane 32, and the third membrane 33 all avoid the light transmission channel 5. In winter daytime sunny weather, they provide maximum passive heating and lighting, and in summer daytime cloudy weather, they provide transparent lighting. Thus, the user can retract different parts of the first membrane 31, the second membrane 32, and the third membrane 33 according to different modes and control the light-blocking or heat-insulating state.

[0081] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A sun shading device, characterized in that The application relates to a film body lifting device, which comprises a frame, a first rotating shaft arranged on the frame, a second rotating shaft arranged on the frame, a third rotating shaft, a long strip-shaped film body, and a supporting table arranged on the frame; the axis of the first rotating shaft, the axis of the second rotating shaft, and the axis of the third rotating shaft are arranged in parallel; the first rotating shaft and the second rotating shaft are horizontally spaced; one end of the film body is wound around the first rotating shaft, and the other end of the film body is fixedly connected with a counterweight after passing through the top of the second rotating shaft; the third rotating shaft supports the film body between the first rotating shaft and the second rotating shaft; the weight of the third rotating shaft is greater than twice the weight of the counterweight; the counterweight can be lifted between a first height position and a second height position; the second height position is higher than the first height position, and the second height position is lower than the top of the second rotating shaft; when the counterweight is located at the first height position, the third rotating shaft is supported on the supporting table. The application further comprises a limiting mechanism; the limiting mechanism can prevent the height of the counterweight from being higher than the second height position. The film body comprises a first film part, a second film part, and a third film part which are sequentially connected; the first film part is arranged around the first rotating shaft, the counterweight is connected with the third film part, and the two ends of the second film part are connected with the first film part and the third film part; the lower part of the first rotating shaft and the second rotating shaft has a light transmission channel for light transmission. When the counterweight is located at the first height position, the first film part, the second film part, and the third film part are respectively located on the light transmission channel; when the first rotating shaft is rotated to lift the counterweight from the first height position to the second height position, the second film part and the third film part are respectively located on the light transmission channel. When the counterweight has been lifted to the second height position, and the first rotating shaft continues to rotate and winds the second film part and the third film part, the film body between the first rotating shaft and the second rotating shaft can lift the third rotating shaft to a third height position above the light transmission channel. The limiting mechanism comprises a first limiting table and a second limiting table arranged on the frame. The counterweight is long strip-shaped, and the counterweight extends in a horizontal straight line direction; the third film part is connected with the counterweight in the extension direction of the counterweight; the third film part is connected with the counterweight in the middle region of the two ends of the counterweight; the first limiting table is located on the lifting path of one end of the counterweight, and the second limiting table is located on the lifting path of the other end of the counterweight; when the counterweight is lifted to the second height position, one end of the counterweight abuts on the bottom of the first limiting table, and the other end of the counterweight abuts on the bottom of the second limiting table. The axis of the first rotating shaft, the axis of the second rotating shaft, and the axis of the third rotating shaft are horizontally arranged respectively.

2. A shading device according to claim 1, wherein The application further comprises an electric machine arranged on the frame and used for driving the first rotating shaft to rotate.

3. A shading device according to claim 1, wherein The height of the axis of the first rotating shaft and the height of the axis of the second rotating shaft are the same. The application further comprises 4. The shading device of claim 1, wherein, ​ 5. A shading device according to claim 1, wherein ​ A guide rail is arranged on the frame body; in the width direction of the film body, the film body is slidable along the guide rail and is in a sealed state with the guide rail.

6. The shading device of claim 1, wherein, The first film part is a non-transparent film.

7. A shading device according to claim 1, wherein The second film part is a partially transparent film.

8. A shading device according to claim 1, wherein The third film part is a transparent film.

9. The shading device of claim 1, wherein, The first film part or the second film part can reflect more than 70% of sunlight.

10. A shading device according to claim 1, wherein When the counterweight is in the first height position, the haze of the combination of the first film part, the second film part and the third film part is less than 6; And / or when the counterweight is in the second height position, the haze of the combination of the second film part and the third film part is less than 6.

11. A shading device according to claim 1, wherein The first film part, the second film part and the third film part are made of a material that can withstand fire for 30 minutes. And / or the combination of the first film part, the second film part and the third film part can reduce noise by at least 30 dB.

12. A shading device according to claim 1, wherein, When the counterweight switches between the first height position and the second height position, the solar heat gain coefficient of the combination of the first film part, the second film part and the third film part changes between 0.2 and 0.8; And / or when the counterweight switches between the first height position and the second height position, the heat transfer coefficient of the combination of the first film part, the second film part and the third film part changes between 0.3 and 1.5 W / ㎡·K.

13. A glass system characterized by, It comprises: a glass piece and a sunshade device according to any one of claims 5 to 12; the film body and the outdoor space are respectively located on both sides of the glass piece.

14. The method of claim 13, wherein the glass system is controlled by the controller. It comprises: S1: a time sensor, a temperature sensor, a solar radiation sensor, a driver for driving the first rotating shaft to rotate, and a controller; the current season and time are obtained according to the time sensor, and the season at this time is assisted to judge through the temperature sensor; the solar radiation sensor assists to judge day and night through the intensity of solar radiation; S2: preset winter-summer night control mode, winter daytime cloudy day control mode, summer daytime sunny day control mode, winter daytime sunny day control mode and summer daytime cloudy day control mode; S3: the controller determines which control mode is preset through the signals of the time sensor, the temperature sensor and the solar radiation sensor; S4: when in the winter-summer night control mode, the controller controls the first rotating shaft to rotate to make the film body fully expand, the first film part, the second film part and the third film part together realize the functions of heat preservation, heat insulation and opacity, which can maximize the guarantee of winter room heat preservation and summer room cold overflow, and protect indoor privacy; S5: when in the winter daytime cloudy day control mode and the summer daytime sunny day control mode, the controller controls the first rotating shaft to rotate to make the counterweight rise to the second height position, the first film part is stored on the first rotating shaft, and the second film part and the third film part together are located on the light transmission channel, which realizes the functions of heat preservation and light transmission in winter daytime cloudy day and cold preservation and sunshade in summer daytime sunny day. S6: When in the winter daytime sunny control mode and the summer daytime overcast control mode, the first rotating shaft rotates to raise the counterweight to a second height position and the third rotating shaft raises to the third height position, the first membrane portion, the second membrane portion and the third membrane portion are received on the first rotating shaft; the first membrane portion, the second membrane portion and the third membrane portion all avoid the light transmission channel, play a maximum passive heating and lighting role in winter daytime sunny, and play a transparent lighting role in summer daytime overcast.

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