Anti-falling device for multi-curtain system and multi-curtain system

Abstract

The utility model discloses a multi-curtain system and an anti-falling device used for the multi-curtain system, the multi-curtain system comprises a plurality of curtain pieces, the anti-falling device comprises a first fixed end and a second fixed end which are used for being fixed on the multi-curtain system, and further comprises an anti-falling piece connected between the first fixed end and the second fixed end, the anti-falling piece comprises a folding section and a supporting section, the folding section is located at the first fixing end and / or the second fixing end, the supporting section is used for supporting the multiple curtain pieces, when the multiple curtain pieces are integrally unfolded, the length of the supporting section is correspondingly increased, and when the multiple curtain pieces are integrally folded, the length of the supporting section is correspondingly increased. And the length of the supporting section is correspondingly shortened. According to the multi-curtain system, the anti-falling effect can be provided for the curtain pieces through the supporting sections, the production, purchase and maintenance cost of the multi-curtain system is reduced, the integration effect of the multi-curtain system is better, meanwhile, complex operation is not needed when the multi-curtain system is used, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of smart home, and in particular to a fall prevention device for multi-curtain systems and a multi-curtain system. Background Technology

[0002] Existing multi-curtain systems, such as outdoor skylight blinds or day / night blinds, adjust the shading range or light transmittance by using multiple slats. Users can adjust the light ratio and intensity in their resting area as needed, meeting their human-centered needs. However, the weight of the slats can cause them to sag, affecting both the shading effect and aesthetics, thus impacting the user experience. Therefore, most multi-curtain systems incorporate anti-fall devices, using pull cords to keep multiple slats at the same horizontal height, avoiding the aforementioned drawbacks.

[0003] However, existing multi-curtain systems typically provide a corresponding number of anti-fall devices for each curtain slat, and the number of pull cords is the same as the number of curtain slats. Multiple sets of anti-fall devices and multiple pull cords not only affect the aesthetics and integrated effect to a certain extent, but also increase the production, purchase and maintenance costs of multi-curtain systems, and also cause inconvenience in operation. Utility Model Content

[0004] This utility model provides a fall protection device and a multi-curtain system for multi-curtain systems, which solves the problems of existing multi-curtain systems having a large number of fall protection devices, resulting in high production, purchase and maintenance costs, and inconvenient operation during use.

[0005] This utility model provides a fall prevention device for a multi-curtain system. The multi-curtain system includes multiple curtain slats. The fall prevention device includes a first fixed end and a second fixed end for fixing to the multi-curtain system, and also includes a fall prevention component connected between the first fixed end and the second fixed end. The fall prevention component includes a retractable section and a support section. The retractable section is located at the first fixed end and / or the second fixed end. The support section is used to provide support for the multiple curtain slats. When the multiple curtain slats are fully extended, the length of the support section is correspondingly extended. When the multiple curtain slats are fully retracted, the length of the support section is correspondingly shortened.

[0006] Furthermore, the support section is located below the plurality of curtain slats, or the support section passes through the plurality of curtain slats.

[0007] Furthermore, each curtain slat includes multiple slats, and all or part of the slats on each curtain slat have a first through hole at a corresponding position, and the support section passes through the first through hole of the multiple curtain slats.

[0008] Furthermore, the fall arrestor is a pull rope, the coiling section of the pull rope is spiral-shaped, the spiral coiling section is wrapped around the first fixed end and / or the second fixed end, and the supporting section of the pull rope is straight or curved.

[0009] Furthermore, the multi-curtain system includes a frame body, the frame body includes a first bracket and a second bracket, the first fixed end of the fall protection device is disposed on the first bracket, and the second fixed end of the fall protection device is disposed on the second bracket.

[0010] Furthermore, the fall protection device includes a first bracket and a second bracket, which are arranged in parallel. When the plurality of curtain slats are fully extended, the second bracket moves relative to the first bracket and moves away from the first bracket. When the plurality of curtain slats are fully retracted, the second bracket moves relative to the first bracket and moves closer to the first bracket.

[0011] Furthermore, all the first through holes of each slat are arranged collinearly, or all the first through holes of each slat are located in the same vertical plane.

[0012] Furthermore, the fall protection device includes a first bracket and a second bracket, which are arranged radially along the same axis of rotation. When the plurality of curtain slats are fully extended, the second bracket rotates in the forward direction relative to the first bracket along the axis of rotation in the first circumferential direction. When the plurality of curtain slats are fully retracted, the second bracket rotates in the reverse direction relative to the first bracket along the axis of rotation in the first circumferential direction.

[0013] Furthermore, the projections of all the first through holes in each slat in the horizontal direction lie on the same circumference.

[0014] Furthermore, the first bracket is a fixed bracket, and the second bracket is a movable bracket.

[0015] Furthermore, the plurality of curtain slats are arranged in sequence adjacent to each other, and the fall arresting device further includes a traction rod connected between two sequentially adjacent curtain slats. The traction rod has a second through hole at the corresponding position of the first through hole for the support section of the fall arresting device to pass through.

[0016] Furthermore, the pull rod includes a first groove and a second groove, the openings of the first groove and the second groove are arranged differently, the first groove is used to connect with one of two adjacent curtain slats, and the second groove is used to connect with the other of the two adjacent curtain slats.

[0017] Furthermore, the traction rod also includes a third groove, which is disposed between the first groove and the second groove, and is used to connect with the trolley assembly.

[0018] Furthermore, the opening of the third groove is located at the bottom of the first groove, and the opening direction of the third groove is the same as that of the opening of the first groove. The third groove and the second groove share a common bottom surface, and the second through hole is located on the common bottom surface.

[0019] Furthermore, the multi-curtain system includes a drive device;

[0020] The first fixed end includes a fixed seat disposed in a fixed bracket and a rope winding component disposed on the fixed seat that can rotate relative to the fixed seat. The spiral winding section is wound around the rope winding component. The driving device drives the trolley assembly of the movable bracket to slide while simultaneously driving the rope winding component to rotate.

[0021] The second fixed end includes a connecting seat on the movable bracket and an elastic element on the connecting seat, and the supporting section of the pull rope is connected to the elastic element at the other end relative to the retracting section.

[0022] Another embodiment of this utility model provides a multi-curtain system, including a frame body and a plurality of curtain slats disposed on the frame body, and further including the anti-fall device described in any of the above embodiments.

[0023] This utility model embodiment provides a fall prevention device for a multi-curtain system. The multi-curtain system includes multiple curtain slats. The fall prevention device includes a first fixed end and a second fixed end for fixing to the multi-curtain system, and a fall prevention component connected between the first and second fixed ends. The fall prevention component includes a retractable section and a support section. The retractable section is located at the first fixed end and / or the second fixed end, and the support section provides support for the multiple curtain slats. This allows the fall prevention device of this embodiment to provide a fall prevention effect for multiple curtain slats through the support section, reducing the production, purchase, and maintenance costs of the multi-curtain system, and also improving the integrated effect of the multi-curtain system. When the multiple curtain slats are fully extended, the length of the support section extends accordingly; when the multiple curtain slats are fully retracted, the length of the support section shortens accordingly. This allows the length of the support section of the fall prevention component of this embodiment to vary according to the overall unfolded or retracted area of ​​the curtain slats, eliminating the need for complex operations and improving the user experience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1This is a perspective view of a multi-curtain system according to an embodiment of the present invention, which adopts the anti-fall device of the first embodiment;

[0026] Figure 2 yes Figure 1 The sectional view is located in the vertical plane shown in the figure (in actual use, the sectional view is located in the horizontal plane) and is located in front of the first through hole;

[0027] Figure 3 yes Figure 2 A magnified view of a portion of the area near the second through hole of the traction rod;

[0028] Figure 4 Is Figure 1 The image is a 3D model with some parts hidden, including the guide rail bracket, belt, and trolley.

[0029] Figure 5 Is Figure 4 The image is a 3D model with some parts hidden. The hidden parts include the drive unit, transmission box, first bracket, and connecting parts of the trolley assembly.

[0030] Figure 6 yes Figure 5 Exploded view;

[0031] Figure 7 yes Figure 6 Exploded view of the upper middle section components;

[0032] Figure 8 yes Figure 6 A close-up view of the side of the traction bar;

[0033] Figure 9 yes Figure 6 The cross-sectional view is taken from the frontal view. The cross-section is located in the vertical plane shown in the figure (in actual use, the cross-section is located in the horizontal plane) and passes through the axis of the first through hole. Detailed Implementation

[0034] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model 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 utility model and are not intended to limit the present utility model.

[0035] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] First embodiment:

[0038] Please refer to Figures 1 to 9 As shown, this embodiment provides a fall prevention device 2 for a multi-curtain system. The multi-curtain system includes multiple curtain slats 1. The fall prevention device 2 includes a first fixed end 21 and a second fixed end 22 for fixing to the multi-curtain system, and also includes a fall prevention component 23 connected between the first fixed end 21 and the second fixed end 22. The fall prevention component 23 includes a retractable section 231 and a support section 232. The retractable section 231 is located at the first fixed end 21 and / or the second fixed end 22. The support section 232 is used to provide support for the multiple curtain slats 1. When the multiple curtain slats 1 are fully extended, the length of the support section 232 is correspondingly extended. When the multiple curtain slats 1 are fully retracted, the length of the support section 232 is correspondingly shortened.

[0039] As a specific solution and not a limitation, in this embodiment, the fall arrestor 23 is a pull cord, and the coiling section 231 of the pull cord is spiral-shaped, with the spiral coiling section 231 wrapped around the first fixed end 21 and / or the second fixed end 22. The total length of the fall arrestor 23 remains unchanged. When the plurality of curtain slats 1 are fully extended, the length of the coiling section 231 shortens, and the length of the support section 232 extends accordingly. When the plurality of curtain slats 1 are fully closed, the length of the coiling section 231 increases, and the length of the support section 232 shortens accordingly.

[0040] The support section 232 of the pull cord described above can be straight or curved. The support section 232 is located below the plurality of curtain slats 1, or the support section 232 passes through the plurality of curtain slats 1. In this embodiment, the support section 232 of the pull cord is generally straight and passes through the plurality of curtain slats 1.

[0041] Specifically, each curtain slat 1 in this embodiment includes multiple curtain leaves, and all curtain leaves on each curtain slat have a first through hole 11 at a corresponding position. The support section passes through the first through hole 11 of the multiple curtain leaves.

[0042] Furthermore, the multi-curtain system includes a frame body, which includes a first support 4, a second support 5, and a guide rail support 7 located between the first support 4 and the second support 5. The guide rail support 7 houses a belt 71 and a trolley assembly 6. The trolley assembly 6 includes a trolley 61 linked to the belt and a connecting member 62. The first fixed end 21 of the fall arrestor is disposed on the first support 4, and the second fixed end 22 of the fall arrestor is disposed on the second support 5.

[0043] As a specific solution rather than a limitation, in this embodiment, the fall arrestor 2 includes a first bracket 4 and a second bracket 5, which are arranged in parallel. When the plurality of curtain slats 1 are fully extended, the second bracket 5 translates relative to the first bracket 4 and moves away from the first bracket 4. When the plurality of curtain slats 1 are fully retracted, the second bracket 5 translates relative to the first bracket 4 and moves closer to the first bracket 4.

[0044] Based on the above-mentioned scheme of parallel arrangement of the first bracket 4 and the second bracket 5, all the first through holes 11 of each curtain slat 1 in this embodiment are located in the same vertical plane. As a preferred option rather than a limitation, all the first through holes 11 of each curtain slat 1 in this embodiment are arranged collinearly.

[0045] As a specific solution rather than a limitation, the first bracket 4 is a fixed bracket, and the second bracket 5 is a movable bracket.

[0046] As a specific solution and not a limitation, the multi-curtain system includes a drive unit 3;

[0047] The first fixed end 21 includes a fixed seat 211 disposed in the fixed bracket and a rope winding member 212 disposed on the fixed seat 211 and rotatable relative to the fixed seat 211. The spiral coiling section 231 is wound around the rope winding member 232. The driving device 3 drives the trolley assembly 6 of the movable bracket to slide while simultaneously driving the rope winding member 212 to rotate.

[0048] The second fixed end 22 includes a connecting seat 221 provided on the movable bracket and an elastic element 222 provided on the connecting seat 221. The supporting section 232 of the pull rope is connected to the elastic element 222 at the other end relative to the retracting section 231.

[0049] Specifically, the first power output shaft 31 of the drive device 3 is circumferentially fixed to the inner ring of the rope winding member 212. When the first power output shaft 31 rotates, the rope winding member 212 rotates synchronously and winds the coiling section 231 of the fall arrestor 23. By changing the winding length of the coiling section 231 on the rope winding member 212, part of the fall arrestor 23 can be changed from the coiling section 231 to the support section 232, or part can be changed from the support section 232 to the coiling section 231. In this embodiment, the rotation speed of the rope winding member 232 and the sliding speed of the trolley assembly 6 of the movable bracket can be adjusted by the gearbox to achieve the purpose of corresponding the closing / unfolding speed of the curtain and the shortening / lengthening speed of the support section. The elastic member 222 can keep the support section 232 in a taut and taut state, thereby improving the fall arrest effect.

[0050] As a preferred option rather than a limitation, the plurality of curtain slats 1 are arranged adjacent to each other in sequence, and the fall arresting device 2 further includes a traction rod 24 connected between two adjacent curtain slats 1 in sequence. The traction rod 24 is provided with a second through hole 241 at the corresponding position of the first through hole 11 for the support section of the fall arresting device 24 to pass through.

[0051] Furthermore, the traction rod 24 includes a first groove 242 and a second groove 243, the openings of the first groove 242 and the second groove 243 are arranged differently, the first groove 242 is used to connect with one of two adjacent curtain slats, and the second groove 243 is used to connect with the other curtain slat of the two adjacent curtain slats.

[0052] As a preferred embodiment, and not a limitation, the traction rod further includes a third groove 244 disposed between the first groove 242 and the second groove 243, the third groove 244 being used for connection with the trolley assembly 6. Specifically, the connector 62 of the trolley assembly 6 includes an insert and a connecting piece for fixing to the trolley 61, the insert extending into the third groove 244 to achieve connection between the trolley 61 and the traction rod 24.

[0053] As a specific solution rather than a limitation, the opening of the third groove 244 is formed at the bottom of the first groove 242, and the opening direction of the third groove 244 is the same as the opening direction of the first groove 242. The third groove 244 and the second groove 243 share a common bottom surface 245, and the second through hole 241 is formed on the common bottom surface 245.

[0054] As a specific solution and not a limitation, in this embodiment, the number of curtain slats 1 in the multi-curtain system is two, including a day curtain and a night curtain. The day curtain has higher light transmittance than the night curtain. Both the day curtain and the night curtain are equipped with corresponding trolley assemblies 6, which can be used to drive the corresponding curtain slats to open or close independently. To save costs, the second bracket 5 in this embodiment can also have the same structure as the traction rod.

[0055] This utility model embodiment provides a fall prevention device for a multi-curtain system. The multi-curtain system includes multiple curtain slats arranged in parallel. The fall prevention device includes a first fixed end and a second fixed end for fixing to the multi-curtain system, and a fall prevention component connected between the first and second fixed ends. The fall prevention component includes a closing section and a supporting section. The closing section is located at the first fixed end and / or the second fixed end, and the supporting section provides support for the multiple curtain slats. This allows the fall prevention device of this embodiment to provide a fall prevention effect for multiple curtain slats through the supporting section, reducing the production, purchase, and maintenance costs of the multi-curtain system, and also improving the integrated effect of the multi-curtain system. When the multiple curtain slats are fully extended, the length of the supporting section is correspondingly extended; when the multiple curtain slats are fully closed, the length of the supporting section is correspondingly shortened. This allows the length of the supporting section of the fall prevention component of this embodiment to vary according to the overall unfolded or closed area of ​​the curtain slats, eliminating the need for complex operations and improving the user experience.

[0056] Second embodiment:

[0057] This embodiment provides a fall protection device for a multi-curtain system, which is the same as the scheme in the first embodiment described above based on the parallel arrangement of the first and second supports.

[0058] The difference is that in this embodiment, multiple curtain slats are also provided with collinearly arranged third through holes, and the straight lines where all the first through holes are located are arranged parallel to the straight lines where all the third through holes are located.

[0059] Both the first fixed end and the second fixed end are disposed within the first bracket, which serves as a fixed support. When the support segment passes through the first through-holes of the multiple slats from the fixed bracket and reaches the second bracket, which serves as a movable support, it returns to the fixed bracket via the third through-holes on the multiple slats within the second bracket. This achieves the same solution where the length of the support segment 232 increases accordingly when the multiple slats 1 are fully extended, and decreases accordingly when the multiple slats 1 are fully closed.

[0060] Third embodiment:

[0061] This embodiment provides a fall protection device for a multi-curtain system, which is different from the scheme of the first embodiment described above, which is based on the parallel arrangement of the first and second supports.

[0062] The fall protection device in this embodiment includes a first bracket and a second bracket. The first bracket and the second bracket are arranged radially along the same axis of rotation. When the plurality of curtain slats are fully unfolded, the second bracket rotates in the forward direction relative to the first bracket along the axis of rotation in the first circumferential direction. When the plurality of curtain slats are fully closed, the second bracket rotates in the reverse direction relative to the first bracket along the axis of rotation in the first circumferential direction.

[0063] In this embodiment, the multi-curtain system includes an inner annular track and an outer annular track. The first bracket and the second bracket are both straddling the inner and outer annular tracks, so that when all the curtains are unfolded, the multi-curtain system as a whole is fan-shaped or circular. The inner and outer annular tracks are equipped with belts and trolley assemblies. The rotation speed of the winding rope and the sliding speed of the trolley assembly of the annular track can be adjusted by the gearbox to achieve the purpose of corresponding curtain slat opening / closing speed and support section length shortening / lengthening speed.

[0064] As a preferred option rather than a limitation, all the first through holes of each slat are projected onto the same circumference in the horizontal direction.

[0065] This utility model embodiment provides a fall prevention device for a multi-curtain system. The multi-curtain system includes multiple curtain slats arranged circumferentially. The fall prevention device includes a first fixed end and a second fixed end for fixing to the multi-curtain system, and a fall prevention component connected between the first and second fixed ends. The fall prevention component includes a retractable section and a support section. The retractable section is located at the first fixed end and / or the second fixed end, and the support section provides support for the multiple curtain slats. This allows the fall prevention device of this embodiment to provide a fall prevention effect for multiple curtain slats through the support section, reducing the production, purchase, and maintenance costs of the multi-curtain system, and also improving the integrated effect of the multi-curtain system. When the multiple curtain slats are fully extended, the length of the support section extends accordingly; when the multiple curtain slats are fully retracted, the length of the support section shortens accordingly. This allows the length of the support section of the fall prevention component of this embodiment to vary according to the overall unfolded or retracted area of ​​the curtain slats, eliminating the need for complex operations and improving the user experience.

[0066] Fourth embodiment:

[0067] This embodiment provides a multi-curtain system, including a frame body and multiple curtain slats disposed on the frame body, and also includes the anti-fall device described in one or more of the above embodiments. Correspondingly, the multi-curtain system of this embodiment can be a day and night curtain arranged vertically, and the multi-curtain system can be rectangular as shown in the first and second embodiments above after the multiple curtain slats are unfolded; the multi-curtain system of this embodiment can also be an outdoor skylight sunshade curtain that unfolds horizontally, slightly, or at an angle, and the multi-curtain system can also be fan-shaped or circular as shown in the third embodiment above after the multiple curtain slats are unfolded.

[0068] This utility model embodiment provides a fall prevention device for a multi-curtain system. The multi-curtain system includes multiple curtain slats arranged in parallel. The fall prevention device includes a first fixed end and a second fixed end for fixing to the multi-curtain system, and a fall prevention component connected between the first and second fixed ends. The fall prevention component includes a closing section and a supporting section. The closing section is located at the first fixed end and / or the second fixed end, and the supporting section provides support for the multiple curtain slats. This allows the fall prevention device of this embodiment to provide a fall prevention effect for multiple curtain slats through the supporting section, reducing the production, purchase, and maintenance costs of the multi-curtain system, and also improving the integrated effect of the multi-curtain system. When the multiple curtain slats are fully extended, the length of the supporting section is correspondingly extended; when the multiple curtain slats are fully closed, the length of the supporting section is correspondingly shortened. This allows the length of the supporting section of the fall prevention component of this embodiment to vary according to the overall unfolded or closed area of ​​the curtain slats, eliminating the need for complex operations and improving the user experience.

[0069] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fall arrest device for a multi-ladder system comprising a plurality of ladder panels, the fall arrest device comprising: The anti-fall device includes a first fixed end and a second fixed end for fixing to a multi-curtain system, and also includes an anti-fall component connected between the first fixed end and the second fixed end. The anti-fall component includes a retractable section and a support section. The retractable section is located at the first fixed end and / or the second fixed end. The support section is used to provide support for the multiple curtain slats. When the multiple curtain slats are fully extended, the length of the support section is extended accordingly. When the multiple curtain slats are fully retracted, the length of the support section is shortened accordingly.

2. The fall arrest device for a multi-cord system of claim 1, wherein, The support section is located below the plurality of curtain slats, or the support section passes through the plurality of curtain slats.

3. The fall arrest device for a multi-cord system of claim 2, wherein, Each curtain slat includes multiple slats, and all or part of the slats on each curtain slat have a first through hole at a corresponding position, and the support section passes through the first through hole of the multiple curtain slats.

4. The fall arrest device for a multi-cord system of claim 3, wherein, The fall arrestor is a pull rope, the coiling section of which is spiral-shaped and wrapped around the first fixed end and / or the second fixed end. The supporting section of the pull rope is straight or curved.

5. The fall arrest device for a multi-cord system of claim 4, wherein, The multi-curtain system includes a frame body, which includes a first bracket and a second bracket. The first fixed end of the fall protection device is disposed on the first bracket, and the second fixed end of the fall protection device is disposed on the second bracket.

6. The fall arrest device for a multi-cord system of claim 5, wherein, The fall protection device includes a first bracket and a second bracket, which are arranged in parallel. When the multiple curtain slats are fully extended, the second bracket moves relative to the first bracket and moves away from the first bracket. When the multiple curtain slats are fully retracted, the second bracket moves relative to the first bracket and moves closer to the first bracket.

7. The fall arrest device for a multi-cord system of claim 6, wherein, All the first through holes of each slat are arranged collinearly, or all the first through holes of each slat are located in the same vertical plane.

8. The fall arrest device for a multi-cord system of claim 5, wherein, The fall protection device includes a first bracket and a second bracket, which are arranged radially along the same axis of rotation. When the multiple curtain slats are fully extended, the second bracket rotates in the forward direction relative to the first bracket along the axis of rotation in the first circumferential direction. When the multiple curtain slats are fully retracted, the second bracket rotates in the reverse direction relative to the first bracket along the axis of rotation in the first circumferential direction.

9. The fall arrest device for a multi-cord system of claim 8, wherein, The projections of all the first through holes of each curtain slat in the horizontal direction lie on the same circumference.

10. A fall arrest device for a multi-curtain system as claimed in any one of claims 6 to 9, wherein, The first bracket is a fixed bracket, and the second bracket is a movable bracket.

11. A fall arrest device for a multi-curtain system as claimed in any one of claims 3 to 9, wherein, The plurality of curtain slats are arranged in sequence adjacent to each other, and the fall arrest device further includes a traction rod connected between two adjacent curtain slats. The traction rod has a second through hole at the corresponding position of the first through hole for the support section of the fall arrest device to pass through.

12. The fall arrest device for a multi-cord system of claim 11, wherein, The pull rod includes a first groove and a second groove, with the openings of the first groove and the second groove being arranged differently. The first groove is used to connect with one of two adjacent curtain slats, and the second groove is used to connect with the other of the two adjacent curtain slats.

13. The fall arrest device for a multi-cord system of claim 12, wherein, The traction rod also includes a third groove, which is located between the first groove and the second groove, and is used to connect with the trolley assembly.

14. The fall arrest device for a multi-cord system of claim 13, wherein, The opening of the third groove is located at the bottom of the first groove, and the opening direction of the third groove is the same as that of the opening of the first groove. The third groove and the second groove share a common bottom surface, and the second through hole is located on the common bottom surface.

15. The fall arrest device for a multi-cord system of claim 10, wherein, The multi-curtain system includes a drive unit; The first fixed end includes a fixed seat disposed in a fixed bracket and a rope winding component disposed on the fixed seat that can rotate relative to the fixed seat. The spiral winding section is wound around the rope winding component. The driving device drives the trolley assembly of the movable bracket to slide while simultaneously driving the rope winding component to rotate. The second fixed end includes a connecting seat on the movable bracket and an elastic element on the connecting seat, and the supporting section of the pull rope is connected to the elastic element at the other end relative to the retracting section.

16. A multi-shade system comprising a frame body and a plurality of shade panels provided on the frame body, characterized in that, It also includes the fall arrest device as described in any one of claims 1 to 15.

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