Sunshade system with middle shutter
By designing a centrally located venetian blind shading system, the light is blocked from both sides of the curtain slats by the light-blocking side frame. The movement of the curtain slats is controlled by a flat roller and ladder rope structure, and equipped with a sensor adjustment system. This solves the problems of poor light blocking performance and short service life of venetian blinds, and achieves the effects of high light blocking performance, long life and intelligent adjustment.
Patent Information
- Application Number
- CN202520443691.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing venetian blinds have poor light-blocking properties and short service life. In particular, when they are thick, the requirements for the lifting structure are high, which leads to accelerated wear.
Design a centrally located venetian blind shading system, including a frame assembly, a hollow structure baffle, a drive control assembly, and a venetian blind assembly. The system blocks light from both sides of the slats through the light-blocking side frame, uses a flat roller and ladder rope structure to control the raising, lowering, and rotating of the slats, and is equipped with a sensor adjustment system to achieve intelligent adjustment.
It improves light-blocking and user privacy, extends the lifespan of the roll, reduces manufacturing costs, and has intelligent adjustment functions, making it suitable for various buildings, especially breathable curtain walls.
Smart Images
Figure CN223881080U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a louver window technical field especially relates to a middle louver sunshade system. BACKGROUND
[0002] At present, building energy saving has become the global consensus, and the governments of all countries have introduced relevant policies to encourage and regulate the development of green building. According to the data of the United Nations Environment Programme, building energy consumption accounts for about 36% of the total global energy consumption, and heating, ventilation and air conditioning system and lighting system are the main sources of energy consumption. This trend makes the application of louver more and more extensive. However, the existing louver has the following shortcomings:
[0003] The left and right sides of the existing louver assembly are transparent, and the light shielding property is poor, which affects the user experience. In the prior art, the left and right sides of the louver assembly are blocked by glass post-silk printing, which increases the production cost.
[0004] The existing louver is often small in thickness, and the louver with large thickness requires high load bearing capacity, which requires high requirements for the lifting structure. Moreover, the structure with large weight aggravates the wear of the lifting structure belt, which shortens the service life of the louver.
[0005] Therefore, it is urgent to design a middle louver sunshade system to solve the above problems. UTILITY MODEL CONTENTS
[0006] The technical problem to be solved by the utility model lies in providing a middle louver sunshade system, which has the advantages of strong light shielding property and long service life.
[0007] In order to solve the above technical problems, the utility model provides a middle louver sunshade system, which comprises a frame assembly, a hollow structure baffle, a driving control assembly and a louver assembly. The frame assembly, the driving control assembly and the louver assembly are arranged in the structure baffle. The driving control assembly is arranged at the top of the structure baffle, and the louver assembly is arranged below the driving control assembly. The louver assembly comprises a frame guard and a plurality of curtain pieces arranged above the frame guard. The curtain pieces are arranged in the vertical direction in sequence. The frame assembly comprises a light shielding side frame, and the light shielding side frame is arranged at both ends of the curtain piece. The driving control assembly comprises a belt passing through the curtain pieces in sequence and a ladder rope supporting the curtain pieces in sequence, so as to control the lifting and turning of the curtain pieces respectively. The belt is of a flat structure. The curtain piece is provided with a curtain opening hole for the belt to pass through, and a protective sleeve is arranged between the curtain opening hole and the curtain piece.
[0008] As an improvement of the above scheme, the light shielding side frame is provided with a containing groove, and both ends of the curtain piece are arranged in the containing groove to separate the curtain piece and the structure baffle.
[0009] As an improvement of the above-mentioned scheme, the width of the winding tape is a, the width of the curtain piece is b, and the ratio of a to b is 0.3-1.
[0010] As an improvement of the above-mentioned scheme, the drive control assembly further comprises a mounting groove, a drive motor, a drive shaft and at least two rotating wheels, the mounting groove is used for placing the drive motor, the drive shaft and the rotating wheels; the output end of the drive motor is connected with the rotating wheels through the drive shaft, so that the drive motor drives the rotating wheels to rotate; the winding tape and the ladder rope are connected with the rotating wheels, and the winding tape and the ladder rope are driven by the rotating wheels to respectively lift and overturn the curtain piece.
[0011] As an improvement of the above-mentioned scheme, the rotating wheel comprises a winding drum, a first drum side plate, a second drum side plate and a guide block, the top of the winding tape is connected with the winding drum, the winding drum is used for winding and unwinding the winding tape, and the first drum side plate and the second drum side plate are respectively arranged on the two sides of the winding drum; the distance c between the first drum side plate and the second drum side plate is greater than or equal to the width a of the winding tape; one side of the second drum side plate is connected with the guide block, and the top of the ladder rope is arranged on the connection position of the second drum side plate and the guide block.
[0012] As an improvement of the above-mentioned scheme, one side of the guide block close to the second drum side plate is a circular arc surface, and a side plate guide part connected with the guide block is arranged on one side of the middle part of the second drum side plate.
[0013] As an improvement of the above-mentioned scheme, a sensing and adjusting system is further included, the sensing and adjusting system comprises a sensor for detecting light intensity and a control assembly for controlling the drive control assembly, the control assembly comprises a control box and a remote controller; the drive control assembly further comprises a stroke adjuster connected with the drive shaft, and the stroke adjuster is used for adjusting the limit of the rotation stroke of the drive shaft.
[0014] As an improvement of the above-mentioned scheme, the protective sleeve is detachably connected with the curtain opening, the protective sleeve comprises a sleeve top arranged on the top of the curtain piece and an isolation part covering the curtain opening; the isolation part is provided with a first buckle part and a second buckle part arranged oppositely, and the first buckle part and the second buckle part are in abutment with the bottom of the curtain piece.
[0015] As an improvement of the above-mentioned scheme, the frame assembly further comprises an aluminum partition frame and a groove cover; the aluminum partition frame comprises a plurality of aluminum partition strips, and partition strip connecting parts for connection are arranged between adjacent aluminum partition strips; the aluminum partition strips are matched with the groove cover and the light-shielding side frame, so that the aluminum partition strips can be detachably connected with the groove cover and the light-shielding side frame; the groove cover is arranged above the drive control assembly, and the groove cover is matched with the mounting groove, so that the groove cover and the mounting groove can be detachably connected.
[0016] As the improvement of the above scheme, the fixed assembly is arranged in the protective frame; the tape and the ladder rope are connected in the fixed assembly after passing through the louver assembly, and the two sides of the fixed assembly are provided with buckling ends for buckling with the protective frame; the protective frame is provided with a weight, and the two ends of the protective frame are provided with covers.
[0017] The beneficial effects of the utility model lie in that:
[0018] The utility model discloses a sunshade system with built-in louver, which is provided with the light shielding side frame at the two ends of the curtain piece, can shield the light on the left and right sides of the louver assembly and hide the edge defects, improves the light shielding property and user privacy, avoids the glass post-silkscreen and reduces the manufacturing cost, prevents the curtain piece from rubbing the tape and causing the tape abrasion through the protective sleeve, prolongs the service life of the tape and can position the tape.
[0019] Further, the utility model discloses a sunshade system with built-in louver, which is provided with the frame assembly, the driving control assembly and the louver assembly in the internal structure baffle, the driving control assembly controls the lifting and overturning of the curtain piece in the louver assembly, can adjust the sunshade according to the specific demand, introduces the sensing adjustment system and has the intelligent adjustment function, can automatically or manually control the driving control assembly according to the demand, realizes the automatic adjustment of the curtain piece and reaches the best light shielding or lighting effect. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a perspective view of the sunshade system with built-in louver without the internal structure baffle.
[0021] Figure 2 It is an exploded view of the sunshade system with built-in louver without the internal structure baffle.
[0022] Figure 3 It is a cooperation structure diagram of the rotating wheel, the tape and the ladder rope and the curtain piece in the sunshade system with built-in louver.
[0023] Figure 4 It is a cooperation structure diagram of the tape, the ladder rope and the curtain piece in the sunshade system with built-in louver.
[0024] Figure 5 It is a detailed structure diagram of the protective sleeve in the sunshade system with built-in louver.
[0025] Figure 6 It is a cooperation structure diagram of the tape, the protective sleeve and the curtain piece from the overhead angle in the sunshade system with built-in louver.
[0026] Figure 7The utility model discloses a cooperation structure diagram of the vertical angle of rotating wheel, tape and ladder rope and curtain piece in the middle louver sunshade system. DETAILED DESCRIPTION
[0027] In order to make the utility model's purpose, technical scheme and advantage more clearly, below will combine the drawing to the utility model make further detailed description. Only this declaration, the utility model appears or will appear in the text, up, left, right, front, back, inside, outside etc. The orientation words of the utility model are only with the drawing of the utility model as the benchmark, and it is not the specific limitation of the utility model.
[0028] As Figures 1-3 The utility model discloses a middle louver sunshade system including frame assembly 1, hollow structure baffle (not shown in the drawing), drive control assembly 2 and louver assembly 3, frame assembly 1, drive control assembly 2 and louver assembly 3 are all arranged in the structure baffle;
[0029] Drive control assembly 2 is arranged at the top of the structure baffle, and louver assembly 3 is arranged below drive control assembly 2;
[0030] Louver assembly 3 includes a frame guard 31 and a plurality of curtain pieces 32 arranged above the frame guard 31, and the plurality of curtain pieces 32 are arranged in a vertical direction;
[0031] Frame assembly 1 includes a light-shielding side frame 11, and the light-shielding side frame 11 is arranged at both ends of the curtain piece 32.
[0032] Drive control assembly 2 includes a tape 21 passing through the plurality of curtain pieces 32 in sequence and a ladder rope 22 supporting the plurality of curtain pieces 32 in sequence to control the lifting and turning of the curtain pieces 32 respectively, the tape 21 is a flat structure, that is, the tape 21 is a flat tape with strong bearing capacity, the ratio of the thickness to the width of the tape 21 is 0.05-0.1, preferably, the thickness is 0.24mm, and the width is 3.6mm, but not limited thereto, and specifically, as shown in the drawing, the ladder rope 22 is provided with a cross brace 221 for supporting the curtain piece 32, and the ladder rope 22 supports the plurality of curtain pieces 32 in sequence through the cross brace 221. Figure 3
[0033] As Figure 4 And Figure 5 The curtain piece 32 is provided with a curtain opening hole 321 for the tape 21 to pass through, and a protective sleeve 322 is arranged between the curtain opening hole 321 and the curtain piece 32.
[0034] More preferably, a page turning protection piece 33 is arranged on the curtain opening hole 321 of the uppermost curtain piece 32 to prevent the uppermost curtain piece 32 from deforming when turning the page, and also to make the page turning of the curtain piece more smooth.
[0035] The protective sleeve 322 is detachably connected to the curtain opening 321. The protective sleeve 322 includes a protective top 322a disposed on the top of the curtain slat 32 and an isolation portion 322b covering the curtain opening 321.
[0036] The isolation part 322b is provided with a first fastening part 322c and a second fastening part 322d arranged opposite to each other. Both the first fastening part 322c and the second fastening part 322d abut against the bottom of the curtain slat 32 so that the protective sleeve 322 is fastened to the curtain opening 321. Preferably, the length L1 of the first fastening part 322c is greater than the length L2 of the second fastening part 322d.
[0037] like Figure 6 As shown, preferably, the width of the tape is a, the width of the slat is b, and the ratio of a to b is 0.3-1.
[0038] The structural baffle is made of glass, preferably ultra-clear glass;
[0039] This utility model's centrally located venetian blind sunshade system uses the light-blocking side frames 11 located at both ends of the curtain slats 32 to block light from the left and right sides of the venetian blind assembly 3 and conceal edge imperfections, improving light-blocking performance and user privacy. It also avoids post-screening on the glass, reducing manufacturing costs. The protective sleeves 322 prevent the curtain slats 32 from rubbing against the roller tape 21, thus extending the service life of the roller tape 21 and providing positioning for it. This utility model's centrally located venetian blind sunshade system is suitable for most buildings, especially breathable curtain walls.
[0040] like Figure 2 As shown, the light-shielding side frame 11 is provided with a receiving groove 111, and the two ends of the curtain slat 32 are provided in the receiving groove 111 to separate the curtain slat 32 from the structural baffle. Preferably, the receiving groove 111 is a U-shaped structure.
[0041] It should be noted that, in practical applications, the hollow structural baffle is preferably a breathable curtain wall made of ultra-clear glass with a Low-E film on its surface. The receiving groove 111 can accommodate both ends of the curtain slat 32, isolating the venetian assembly 3 from the ultra-clear glass and preventing the curtain slat 32 from rubbing against the Low-E film. At the same time, the receiving groove 111 can also limit and protect the entire venetian assembly 3, ensuring the stability of the curtain slat 32 during lifting and flipping, preventing it from shifting or swaying, and further improving its performance and reliability.
[0042] In the specific structure of the driving control assembly 2, the driving control assembly 2 further comprises a mounting groove 23, a driving motor 24, a driving shaft 25 and at least two rotating wheels 26, the mounting groove 23 is used for placing the driving motor 24, the driving shaft 25 and the rotating wheels 26;
[0043] The output end of the driving motor 24 is connected with the rotating wheels 26 through the driving shaft 25, so that the driving motor 24 drives the rotating wheels 26 to rotate;
[0044] The winding belt 21 and the ladder rope 22 are connected with the rotating wheels 26, and the winding belt 21 and the ladder rope 22 are driven by the rotating wheels 26 to respectively lift and overturn the curtain pieces 32.
[0045] The upper end of the ladder rope 22 is hung on the rotating wheel 26, that is, the ladder rope 22 is connected with the rotating wheel 26 in abutment, the rotating wheel 26 drives the ladder rope 22 to move by friction, so that the ladder rope 22 drives the curtain pieces 32 to overturn, avoiding the influence between lifting the curtain pieces 32 and overturning the curtain pieces 32; the design of the winding belt 21 and the ladder rope 22 provides an effective power transmission mode for lifting and overturning the curtain pieces 32; the winding belt 21 passes through a plurality of curtain pieces 32 in turn, and can drive the curtain pieces 32 to perform overall lifting operation; the ladder rope 22 supports the curtain pieces 32 through the cross support 221, and realizes overturning of the curtain pieces 32 under the driving of the rotating wheel 26, compared with the prior art, the winding belt 21 is used instead of the pull rope, so that the bearing capacity and service life of the louver assembly 3 can be increased, and the movement of the curtain pieces 32 is more stable and smooth, and accurate control can be realized.
[0046] As shown in Figure 6 and Figure 7 The rotating wheel 26 comprises a winding drum 261, a first drum side plate 262, a second drum side plate 263 and a guide block 264, the top of the winding belt 21 is connected with the winding drum 261, the winding drum 261 is used for winding and unwinding the winding belt 21, and the first drum side plate 262 and the second drum side plate 263 are respectively arranged on the two sides of the winding drum 261;
[0047] The distance c between the first drum side plate 262 and the second drum side plate 263 is greater than or equal to the width a of the winding belt 21, so that when the winding belt 21 is wound up, the first drum side plate 262 and the second drum side plate 263 accommodate the winding belt 21 and limit the winding belt 21 from deviating to the first drum side plate 262 or the second drum side plate 263;
[0048] One side of the second drum side plate 263 is connected with the guide block 264, and the top of the ladder rope 22 is arranged on the connection position of the second drum side plate 263 and the guide block 264.
[0049] Preferably, the side of the guide block 264 near the second cylindrical side plate 263 is an arc surface, and the middle part of the second cylindrical side plate 263 is provided with a side plate guide portion 263a connected to the guide block 264. The cooperation between the guide portion 263a and the guide block 264 can guide the ladder rope 22 at the connection between the guide portion 263a and the guide block 264, so that the ladder rope 22 will not deviate.
[0050] like Figure 2 As shown, more preferably, the central louvered sunshade system of this utility model also includes a sensing and adjustment system (not shown in the figure), the sensing and adjustment system includes a sensor for detecting light intensity and an adjustment component for controlling the drive control component, the adjustment component includes an adjustment box and a remote control;
[0051] In practical use, the critical light intensity of the sensor can be preset according to specific lighting requirements. When the actual light intensity is greater than the critical light intensity, the ladder rope 22 controls the curtain slats 32 to flip to reduce lighting or close. When the actual light intensity is less than the critical light intensity, the ladder rope 22 controls the curtain slats 32 to open to allow light. The specific principles of the sensor, control box, and remote control in the sensing and adjustment system are existing technologies and will not be described in detail here. Preferably, the control box is a 12VT type 86 box, but this is not a limitation.
[0052] The drive control component 2 also includes a stroke device 27 connected to the drive shaft 25, the stroke device 27 being used to adjust the limits of the rotational stroke of the drive shaft 25.
[0053] The drive motor 24, rotating wheel 26 and stroke device 27 can be provided with corresponding protective housings to better fix them in the mounting groove 23.
[0054] It should be noted that the addition of the sensing and adjustment system enables the centrally located venetian blind shading system of this utility model to possess intelligent adjustment functions. The sensor can detect light intensity in real time, and the control box and remote control in the control assembly can automatically or manually control the drive control assembly 2 based on the detected light intensity data to achieve automatic adjustment of the curtain slats 32, thereby achieving the best shading or lighting effect and improving the comfort and convenience of use. The setting of the stroke device 27 can precisely adjust the limit of the rotation stroke of the drive shaft 25, thereby controlling the lifting and tilting angle of the curtain slats 32, further improving the safety and reliability of use.
[0055] like Figure 2 As shown, for ease of assembly and disassembly, the frame assembly 1 also includes an aluminum partition frame (not shown in the figure) and a slot cover 12;
[0056] The aluminum spacer frame comprises four aluminum spacers 13, and spacer connectors 14 are arranged between adjacent aluminum spacers 13 for connection. The aluminum spacers 13 are matched with the groove cover 12 and the light shielding side frame 11, so that the aluminum spacers 13 can be detachably connected with the groove cover 12 and the light shielding side frame 11. The spacer connector 14 is preferably a plug. This connection structure makes the assembly of the aluminum spacers 13 more convenient and fast, and the connection is firm and stable. The aluminum material has good strength and corrosion resistance, can effectively protect the structural baffle and internal components, and will not deform or be damaged after long-term use, thereby improving the overall quality and service life of the entire system.
[0057] The groove cover 12 is arranged above the drive control assembly 2, and the groove cover 12 is matched with the mounting groove 23, so that the groove cover 12 and the mounting groove 12 are detachably connected.
[0058] It should be noted that in a louver with relatively small weight, the profiles of the frame are usually connected in a buckling manner for convenient construction and installation. In the present application, the groove cover 12 is connected with the mounting groove 23 in a threading manner, and the aluminum spacers 13 are connected with the groove cover 12 and the light shielding side frame 11 in a threading manner. The connection in a threading manner is suitable for a louver with relatively large weight and high bearing capacity requirement, so as to avoid the louver from falling off due to insufficient connection between the profiles.
[0059] The protective frame 31 is internally provided with a fixing assembly 311, and the winding belt 21 and the ladder rope 22 are connected in the fixing assembly 311 after passing through the louver assembly 3. The connection mode of the fixing assembly 311 with the winding belt 21 and the ladder rope 22 is a prior art, and the specific principle is not described herein.
[0060] The provision of the fixing assembly 311 enables the winding belt 21 and the ladder rope 22 to be stably connected in the protective frame 31 after passing through the louver assembly 3, preventing them from loosening or shifting, and ensuring the stability of the lifting and turning process of the curtain piece 32.
[0061] The fixing assembly 311 is provided with buckling ends 311a on both sides for buckling with the protective frame 31. The provision of the buckling ends 311a enables the connection between the fixing assembly 311 and the protective frame 31 to be more firm and stable, avoiding the loosening or falling off of the fixing assembly 311 due to vibration or external force, thereby ensuring the stability. At the same time, the design of the buckling ends 311a also facilitates the installation and disassembly of the fixing assembly 311, and facilitates the maintenance of the louver assembly 3 and the fixing assembly 311.
[0062] The weight member 312 is arranged in the protective frame 31, which can play a certain counterweight role, improve the stability of the louver assembly 3, reduce the shaking or displacement caused by external force, make the curtain piece 32 more stable during lifting and turning, and improve the stability of use.
[0063] The protective frame 31 is provided with a cover 313 at both ends, so as to seal both ends of the protective frame 31 and fix the weight member 312, preventing displacement of the weight member 312.
[0064] In summary, the middle louver sunshade system in the utility model can block the light on both sides of the louver assembly 3 and hide the edge defects, improve the light blocking property and user privacy, and avoid glass post-silkscreening, thereby reducing the manufacturing cost; the protective sleeve 322 prevents the curtain piece 32 from rubbing against the tape 21, thereby preventing the tape 21 from being worn and prolonging the service life of the tape 21, and the tape 21 can be positioned. The middle louver sunshade system in the utility model can be applied to most buildings, especially the breathable curtain wall. Further, the middle louver sunshade system in the utility model is arranged inside the structural baffle, the driving control assembly 2 controls the lifting and turning of the curtain piece 32 in the louver assembly 3, the sunshade can be adjusted according to specific requirements, the sensing adjustment system is introduced, the intelligent adjustment function is achieved, the driving control assembly 2 can be automatically or manually controlled according to requirements, the automatic adjustment of the curtain piece 32 is realized, the best light blocking or lighting effect is achieved, the driving control assembly 2 and the louver assembly 3 are integrated inside the structural baffle, the whole is simple and beautiful, can be coordinated with most building styles, the driving control assembly 2 and the louver assembly 3 are matched, the adjustment is flexible and convenient to maintain, and the use range is wide, which can be used not only as a window but also as a sliding door.
[0065] The above is the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements are also regarded as the protection range of the utility model.
Claims
1. A mid-screen louvre blind system, characterised in that, The frame assembly, hollow structural baffle, drive control assembly and louver assembly are arranged in the structural baffle; The drive control assembly is arranged at the top of the structural baffle, and the louver assembly is arranged below the drive control assembly; The louver assembly comprises a frame guard and a plurality of curtain pieces arranged above the frame guard in the vertical direction; The frame assembly comprises a light-shielding side frame arranged at both ends of the curtain piece; The drive control assembly comprises a tape passing through the curtain pieces in sequence and a ladder rope supporting the curtain pieces in sequence to control the lifting and turning of the curtain pieces, and the tape is in a flat structure; The curtain piece is provided with a curtain opening through which the tape passes, and a protective sleeve is arranged between the curtain opening and the curtain piece.
2. A middle lamella sun shading system according to claim 1, characterized in that The light-shielding side frame is provided with a receiving groove, and both ends of the curtain piece are arranged in the receiving groove to separate the curtain piece from the structural baffle.
3. A middle lamella sun shading system according to claim 1, characterized in that The width of the tape is a, the width of the curtain piece is b, and the ratio of a to b is 0.3-1.
4. A mid-level louvre blind system according to claim 3, characterised in that, The drive control assembly further comprises a mounting groove, a drive motor, a drive shaft and at least two rotating wheels, and the mounting groove is used to accommodate the drive motor, the drive shaft and the rotating wheels; The output end of the drive motor is connected with the rotating wheels through the drive shaft, so that the drive motor drives the rotating wheels to rotate; The tape and the ladder rope are connected with the rotating wheels, and the tape and the ladder rope are lifted and turned, respectively, under the driving of the rotating wheels.
5. A mid-level louvre blind system according to claim 4, characterised in that, The rotating wheel comprises a winding drum, a first drum side plate, a second drum side plate and a guide block, the top of the tape is connected with the winding drum, the winding drum is used to wind and unwind the tape, and the first drum side plate and the second drum side plate are arranged at both sides of the winding drum, respectively; The distance c between the first drum side plate and the second drum side plate is greater than or equal to the width a of the tape; One side of the second drum side plate is connected with the guide block, and the top of the ladder rope is arranged at the connection between the second drum side plate and the guide block.
6. A mid-level louvre blind system according to claim 5, characterised in that, The side of the guide block close to the second drum side plate is a circular arc surface, and the middle part of the second drum side plate is provided with a side plate guide part connected with the guide block.
7. A middle lamella sun shading system according to claim 4, characterized in that The sensing and adjusting system comprises a sensor for detecting the light intensity and a control assembly for controlling the drive control assembly, and the control assembly comprises a control box and a remote controller; The drive control assembly further comprises a stroke adjuster connected with the drive shaft, and the stroke adjuster is used to adjust the limit of the rotation stroke of the drive shaft.
8. A middle lamella sun shading system according to claim 1, characterized in that The protective sleeve is detachably connected to the curtain opening, and the protective sleeve comprises a sleeve top arranged at the top of the curtain piece and an isolation part covering the curtain opening; The isolation part is provided with a first buckle part and a second buckle part arranged oppositely, and the first buckle part and the second buckle part are in abutment with the bottom of the curtain piece.
9. A middle lamella sun shading system according to claim 1, characterized in that The frame assembly further comprises an aluminum partition frame and a groove cover. The aluminum partition frame comprises a plurality of aluminum partition strips, and partition strip connecting members are arranged between adjacent aluminum partition strips for connection. The groove cover is arranged above the driving control assembly, and the groove cover is matched with the mounting groove so that the groove cover and the mounting groove are detachably connected.
10. A middle lamella sun shading system according to claim 1, characterized in that The protective frame is internally provided with a fixing assembly. The winding belt and the ladder rope are connected to the fixing assembly after passing through the shutter assembly, and the fixing assembly is provided with buckle connection ends for buckling connection with the protective frame. The protective frame is internally provided with a weighting member, and the protective frame is provided with end covers.