Electric window curtain with universal hitch structure

Abstract

The application belongs to the technical field of electric curtains, and particularly relates to an electric curtain with a universal connection structure. The first connection end of the first curtain guide rail and the second connection end of the second curtain guide rail are connected at any angle in a detachable mode, and meanwhile, the universal connection transmission part is added to enable the first curtain hanging assembly and the second curtain hanging assembly to move synchronously and the first hook and the second hook to rotate synchronously after the first curtain guide rail and the second curtain guide rail are connected at any angle. Through the improvement, the on-site installation of the multi-section curtain guide rail is more convenient, the efficiency is improved, and the multi-section curtain guide rail is convenient to disassemble and maintain.

Description

Technical Field

[0001] This invention belongs to the technical field of electric curtains, and particularly relates to electric curtains with a universal splicing structure. Background Technology

[0002] Smart home is a home ecosystem comprised of hardware, software systems, and cloud platforms, utilizing Internet of Things (IoT) technology to provide users with a safe, convenient, and comfortable home living environment. In recent years, with the development of smart homes, in addition to intelligent home appliances, smart home products have also expanded to include intelligent lighting, intelligent shading, and more.

[0003] Electric curtains are widely used because they are electrically controlled by a motor, eliminating the hassle of manually opening and closing curtains, and align with the development trend of smart homes. The size of electric curtains is customized according to the installation location. For excessively long curtains, they are generally divided into multiple sections and then joined together on-site. In some special locations, such as corners, multiple sections of the electric curtain need to be installed at an angle. While ordinary electric curtains only provide simple opening and closing control, when multiple sections are joined at an angle, only simple transmission connections need to be considered.

[0004] Currently, there are also some high-end curtains, such as the Dream Curtain, which have opaque areas on both sides and a light-transmitting area in the middle. In use, the light-transmitting area in the middle can be increased or decreased by rotating the angle of the opaque areas on both sides, thereby achieving the effect of light adjustment. Currently, motorized curtains used for the aforementioned dimmable curtains utilize curtain clips connected to the curtain hanging assembly to hold the opaque portion of the curtain. Opening and closing the curtain is achieved by controlling the movement of the clips, or by rotating the clips to control the dimming effect. Therefore, it can not only open and close the curtain through the movement of the curtain hanging assembly but also dim the light through the hooks. However, when multiple sections of the motorized curtain are installed at an angle, the connection becomes quite complex. Currently, multiple motors are typically used, with each section of the motorized curtain having its own drive motor. However, this method is not only costly but also requires precise synchronization; otherwise, the curtains will adjust asynchronously. Another approach uses a connection structure with gears and universal couplings. Gears cause the curtain hanging assemblies on multiple sections of the motorized curtain to move synchronously, and universal couplings cause the hooks on multiple sections of the motorized curtain to rotate synchronously. However, this method suffers from low on-site installation efficiency due to the complexity of the universal coupling connection, and it is difficult to disassemble later, affecting subsequent maintenance. Summary of the Invention

[0005] The purpose of this invention is to provide an electric curtain with a universal splicing structure, which enables multi-section electric curtains to be spliced ​​at multiple angles, and is easy to install and highly efficient.

[0006] Based on this, the present invention provides an electric curtain with a universal joint structure, comprising at least a first curtain rail and a second curtain rail.

[0007] The first curtain rail includes at least a first curtain hanging assembly that can move along the length of the first curtain rail, and the first curtain hanging assembly is provided with a rotatable first hook. The second curtain rail includes at least a second curtain hanging assembly that can move along the length of the second curtain rail, and the second curtain hanging assembly is provided with a rotatable second hook.

[0008] One end of the first curtain rail is a first connecting end, and one end of the second curtain rail is a second connecting end. The electric curtain also includes a universal connecting transmission component disposed on the first connecting end or the second connecting end. The second curtain rail can be detachably connected to the first connecting end of the first curtain rail at any angle through the second connecting end. When the first curtain hanging component moves, the second curtain hanging component moves through the universal connecting transmission component. When the first hook rotates, the second hook rotates through the universal connecting transmission component.

[0009] As described above, in the motorized curtain with a universal joint structure, the angle between the first curtain rail and the second curtain rail after docking is 80° to 280°.

[0010] As described above, the electric curtain with a universal splicing structure includes a first curtain rail housing, a first opening and closing transmission component, and a first angle adjustment transmission component. The first opening and closing transmission component is used to drive the first curtain hanging component to move along the length direction of the first rail housing, and the first angle adjustment transmission component is used to drive the first hook on the first curtain hanging component to rotate.

[0011] The second curtain rail includes a second rail housing, a second opening and closing transmission assembly, and a second angle adjustment transmission assembly. The second opening and closing transmission assembly is used to drive the second curtain hanging assembly to move along the length direction of the second rail housing, and the second angle adjustment transmission assembly is used to drive the second hook on the second curtain hanging assembly to rotate.

[0012] As described above, the electric curtain with a universal joint structure includes a first transmission part and a second transmission part. The first transmission part is used to connect the first opening and closing transmission component with the second opening and closing transmission component, and the second transmission part is used to connect the first angle adjustment transmission component with the second angle adjustment transmission component.

[0013] As described above, in the electric curtain with a universal joint structure, the second transmission part is located below the first transmission part and is coaxially arranged with the first transmission part.

[0014] As described above, the electric curtain with a universal joint structure has a first transmission accessory extending to the first joint end on the first angle adjustment transmission assembly, and a second transmission accessory extending to the second joint end on the second angle adjustment transmission assembly. The rotation axes of the first transmission accessory and the second transmission accessory are perpendicular to the rotation axis of the second transmission part.

[0015] As described above, the electric curtain with a universal joint structure includes a first transmission gear, a first docking gear, and a first transmission belt that cooperates with the first transmission gear and the first docking gear. The first docking gear is located on one side of the first joint end, and the first docking gear is provided with a first engagement part and a first docking part that mesh with the first transmission belt. One side of the first docking part extends to the first joint end and meshes with the first transmission part.

[0016] The second opening and closing transmission assembly includes a second transmission gear, a second docking gear, and a second transmission belt that cooperates with the second transmission gear and the second docking gear. The second docking gear is located on one side of the second connecting end, and the second docking gear is provided with a second engagement part and a second docking part that mesh with the second transmission belt. One side of the second docking part extends to the second connecting end and meshes with the first transmission part.

[0017] As described above, the electric curtain with a universal joint structure includes a first angle adjustment transmission assembly comprising a first rotating rod and transmission ends disposed at both ends of the first rotating rod. The first rotating rod is arranged along the length direction of the first guide rail housing and passes through the first curtain hanging assembly. One side of the transmission end of the first rotating rod engages with the first transmission accessory.

[0018] As described above, the electric curtain with a universal splicing structure has a first end cap on the first splicing end that is connected to the first guide rail housing. The end face of the first end cap has a first splicing part that extends outward. The first end cap also has a first through hole. The first splicing part is located outside the first through hole. The first splicing part has a groove that is opened along the outer contour of the first splicing part. The lower end face of the first splicing part also has a mounting part. The first transmission accessory is located at the first through hole.

[0019] The universal joint transmission component is installed on the first joint, and the first transmission part is located in the slot and is connected to the first opening and closing transmission assembly. The second transmission part is located on the mounting part and is connected to the first transmission accessory on the lower side for transmission.

[0020] As described above, the electric curtain with a universal joint structure has a second end cap on the second joint end that is connected to the second guide rail housing. The end face of the second end cap has a second joint portion extending outward. The second end cap also has a second through hole. The axis of the second through hole is on the same horizontal plane as the axis of the first through hole. The second end cap also has a notch for one side of the second mating gear to extend to the second joint portion. The notch is on the same horizontal plane as the groove.

[0021] Implementing the embodiments of the present invention has the following beneficial effects:

[0022] 1. This invention provides an electric curtain with a universal joint structure. It achieves detachable connection at any angle through the first joint end of the first curtain rail and the second joint end of the second curtain rail. Moreover, at the same time as the connection, this solution adds a universal joint transmission component so that after the first curtain rail and the second curtain rail are connected at any angle, the first curtain hanging component and the second curtain hanging component can move synchronously, and the first hook and the second hook can rotate synchronously. Through this improvement, the on-site installation of multi-section curtain rails is more convenient and efficient, and it is also easy to disassemble and maintain later. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the horizontal splicing of the electric curtain with the universal splicing structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the electric curtain with the universal splicing structure of the present invention after being spliced ​​at an angle;

[0026] Figure 3 This is a schematic diagram of the structure after the first and second connecting ends are connected at an angle;

[0027] Figure 4 for Figure 3 Exploded view of the structure;

[0028] Figure 5 for Figure 3 A schematic diagram of the connection between the first opening and closing transmission component and the second opening and closing transmission component;

[0029] Figure 6 for Figure 3 A schematic diagram of the first angle adjustment transmission assembly.

[0030] Figure 7 This is a schematic diagram of the structure of the first curtain track;

[0031] Figure 8 for Figure 7 Enlarged view of part A;

[0032] Figure 9 for Figure 7 Exploded view;

[0033] Figure 10 for Figure 7 Exploded view of part of the structure;

[0034] Figure 11 This is a schematic diagram of the first angle adjustment transmission assembly and the second angle adjustment transmission assembly.

[0035] Figure 12 This is a schematic diagram of the second curtain track.

[0036] Figure 13 for Figure 12 Enlarged view of part B;

[0037] Figure 14 for Figure 12 Exploded view;

[0038] Figure 15 for Figure 13 A half-section view;

[0039] Figure 16 Structural explosion at the second connection end Figure 1 ;

[0040] Figure 17 Structural explosion at the second connection end Figure 2 ;

[0041] Figure 18 This is a structural diagram of the first end cap;

[0042] Figure 19 for Figure 17 Exploded view;

[0043] Figure 20 This is a structural diagram of the second end cap;

[0044] Figure 21 Structural explosion at the second connection end Figure 3 . Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] This invention relates to an electric curtain with a universal joint structure, designed for use with electric curtains that can adjust light by rotating the angle, such as the electric track of a Dreamy Curtain. When the central light-transmitting area is at its maximum, the opaque area of ​​the curtain is perpendicular to the curtain track. When the curtain is rotated until the opaque area completely blocks the light-transmitting area, light blocking can be achieved.

[0047] like Figures 1 to 14 As shown, for the aforementioned multi-segment dimmable curtain with universal joint, this embodiment of the invention provides an electric curtain with a universal joint structure, including at least a first curtain rail 1 and a second curtain rail 2. The first curtain rail 1 includes at least a first curtain hanging assembly 12 movable along the length of the first curtain rail 1, and the first curtain hanging assembly 12 is provided with a rotatable first hook 91. The second curtain rail 2 includes at least a second curtain hanging assembly 22 movable along the length of the second curtain rail 2, and the second curtain hanging assembly 22 is provided with a rotatable second hook 92; the first curtain rail 1... One end of the curtain rail 1 is the first connecting end 14, and one end of the second curtain rail 2 is the second connecting end 24. The electric curtain also includes a universal connecting transmission component 3 disposed on the first connecting end or the second connecting end. The second curtain rail 2 can be detachably connected to the first connecting end 14 of the first curtain rail 1 at any angle through the second connecting end 24. When the first curtain hanging component 12 moves, the second curtain hanging component 22 moves synchronously through the universal connecting transmission component 3. When the first hook 91 rotates, the second hook 92 rotates synchronously through the universal connecting transmission component 3. This invention provides an electric curtain with a universal joint structure. It achieves detachable connection at any angle through the first joint end of the first curtain rail and the second joint end of the second curtain rail. Moreover, at the same time as the connection, this solution adds a universal joint transmission component so that after the first and second curtain rails are connected at any angle, the first curtain hanging component and the second curtain hanging component can move synchronously, and the first hook and the second hook can rotate synchronously. Through this improvement, the on-site installation of multi-section curtain rails is more convenient and efficient, and it is also easier to disassemble and maintain later.

[0048] According to actual usage requirements, in this embodiment of the invention, the included angle between the first curtain rail 1 and the second curtain rail 2 after docking is 80° to 280°.

[0049] Furthermore, in this embodiment of the invention, the specific structure of the first curtain rail 1 is as follows: the first curtain rail 1 includes a first rail housing 11, a first opening and closing transmission component 13, and a first angle adjustment transmission component 15. The first opening and closing transmission component 13 is used to drive the first curtain hanging component 12 to move along the length direction of the first rail housing 11, and the first angle adjustment transmission component 15 is used to drive the first hook 91 on the first curtain hanging component 12 to rotate.

[0050] Similarly, in this embodiment of the invention, the specific structure of the second curtain rail 2 is as follows: the second curtain rail 2 includes a second rail housing 21, a second opening and closing transmission component 23, and a second angle adjustment transmission component 25. The second opening and closing transmission component 23 is used to drive the second curtain hanging component 22 to move along the length direction of the second rail housing 21, and the second angle adjustment transmission component 25 is used to drive the second hook 92 on the second curtain hanging component 22 to rotate.

[0051] In this embodiment of the invention, a universal joint transmission component is used to realize the translational transmission between the first curtain hanging assembly 12 and the second curtain hanging assembly 22, as well as the rotational transmission between the first hook 91 and the second hook 92. The specific structure of the universal joint transmission component 3 is as follows: the universal joint transmission component 3 includes a first transmission part 31 and a second transmission part 32. The second transmission part 32 is located below the first transmission part 31 and is coaxially arranged with the first transmission part 31. The first transmission part 31 is used to connect the first opening and closing transmission assembly 13 with the second opening and closing transmission assembly 23. The second transmission part 32 is used to connect the first angle adjustment transmission assembly 15 with the second angle adjustment transmission assembly 25.

[0052] Moreover, in this solution, the first transmission part 31 and the second transmission part 32 can rotate independently, so that when realizing the translational transmission between the first curtain hanging assembly 12 and the second curtain hanging assembly 22, the rotation of the hook will not be affected, or the translational or rotational transmission of multiple curtain rails can be realized.

[0053] Furthermore, in this embodiment of the invention, the first angle adjustment transmission assembly 15 is provided with a first transmission accessory 151 extending to the first connecting end 14, and the second angle adjustment transmission assembly 25 is provided with a second transmission accessory 251 extending to the second connecting end 24. The rotation axes of the first transmission accessory 151 and the second transmission accessory 251 are perpendicular to the rotation axis of the second transmission part 32. In this way, the rotation of the first transmission accessory 151 can drive the rotation of the second transmission part 32, thereby driving the second transmission accessory 251. Moreover, with the second transmission part 32 as an intermediate transmission component, the first transmission accessory 151, the second transmission accessory 251, and the second transmission part 32 can maintain cooperation when the first curtain rail 1 and the second curtain rail 2 are connected at any angle.

[0054] In this embodiment of the invention, the first opening and closing transmission assembly 13 serves as a crucial component for driving the movement of the first curtain hanging assembly 11. Its specific structure includes a first transmission gear 131, a first mating gear 132, and a first transmission belt 133 that engages with the first transmission gear 131 and the first mating gear 132. The first mating gear 132 is located on one side of the first connecting end 14, and it has a first engaging portion 1321 and a first mating portion 1322 that mesh with the first transmission belt 133. One side of the first mating portion 1322 extends to the first connecting end 14 and meshes with the first transmission portion 31. In this solution, the first curtain guide rail 1 is connected to a drive motor, which drives the first opening and closing transmission assembly 13 to rotate. This, in turn, drives the first mating gear 132 to rotate via the first transmission belt 133. The first curtain hanging assembly 12 is connected to the first transmission belt 133, thus enabling it to move along the first curtain guide rail 1.

[0055] Similarly, the specific structure of the second opening and closing transmission assembly 23 is as follows: the second opening and closing transmission assembly 23 includes a second transmission gear 231, a second docking gear 232, and a second transmission belt 233 that cooperates with the second transmission gear 231 and the second docking gear 232. The second docking gear 232 is located on one side of the second connecting end 24, and the second docking gear 232 is provided with a second meshing part 2321 and a second docking part 2322 that mesh with the second transmission belt 233. One side of the first docking part 2322 extends to the second connecting end 24 and meshes with the first transmission part 31. The movement principle of the second curtain hanging assembly 22 is the same as above. In this solution, when the first docking gear 132 rotates, its first docking part 1322 drives the first transmission part 31 of the universal connecting transmission component 3 to rotate, thereby driving the second docking gear 232 to rotate and the second transmission belt 233 to rotate, ultimately enabling the second curtain hanging assembly 22 to move, and it moves synchronously with the first curtain hanging assembly 12.

[0056] like Figures 14 to 16 As shown, in this design, a clutch assembly 234 is also provided between the second meshing part 2321 and the second docking part 2322. This clutch assembly drives the second curtain hanging assembly to move via the second opening / closing transmission assembly on the second curtain rail. Furthermore, the structure of the second docking gear is improved by providing a clutch assembly between the second meshing part and the second docking part. During transmission, the second docking part meshes with the docking part of another curtain rail via a transmission component. The clutch assembly causes the second docking part and the second meshing part to rotate synchronously, thereby driving the second curtain hanging assembly to move via the second transmission belt. When the second curtain hanging assembly reaches its end, if the curtain hanging assembly of the other curtain rail has not yet reached its end, the curtain hanging assembly of that other curtain rail needs to continue moving. At this point, the clutch assembly in this design comes into play, allowing the second docking part to idle relative to the second meshing part. This ensures that the second docking part can remain idle and release excess opening / closing power when the second curtain hanging assembly does not need to move, thus achieving the transmission requirements after docking electric curtains of different lengths.

[0057] Specifically, in this embodiment of the invention, the second curtain hanging assembly 22 includes multiple trolleys 221, one of which is a main trolley. The main trolley is provided with a sliding seat, and each trolley 221 is connected to an adjacent trolley via a linkage belt 223. In this embodiment of the invention, the principle by which the second opening and closing transmission assembly 23 drives the multiple trolleys to translate is as follows: the sliding seat is provided with a connecting block 224, which is connected to the second transmission belt 233. This allows the main trolley to translate relative to the second guide rail housing 21 as the second transmission belt 23 moves, while the other trolleys translate through the movement of the main trolley and the linkage of the linkage belt 223.

[0058] In this embodiment of the invention, the clutch assembly operates on the same principle as a clutch. By pressing, the components connected on both sides of the clutch assembly are synchronously driven. When the clutch assembly is separated or rotates relative to each other, the components connected on both sides of the clutch assembly lose the transmission, thereby realizing the connection or disconnection of the transmission. In this solution, the clutch assembly 234 includes a clutch plate 2341 and a clutch element 2342 arranged opposite to each other. The clutch plate 2341 is connected to the lower end of the second engagement part 2321, and the clutch element 2342 is connected to the upper end of the second mating part 2322. The end faces of the clutch plate 2341 and the clutch element 2342 opposite to each other are friction surfaces. In the transmission state, the clutch 2342 and clutch plate 2341 can rotate synchronously through the friction force on the friction surface. When the resistance on one side increases and the resistance is greater than the friction force that the friction surface can provide, the clutch plate can rotate relative to the clutch, thereby achieving the effect of disengaging the transmission. At this time, even if the lower second docking part 2322 continues to rotate, it cannot drive the upper second meshing part 2321, thus achieving the effect of the second docking part 2322 and the first transmission part 31 idling.

[0059] In this embodiment of the invention, the elastic element 235 serves as a pressing and transmission mechanism between the clutch plate 2341 and the clutch element 2342. The second engagement portion 2321 is also provided with an elastic element 235 that presses the second engagement portion 2321 against the second docking portion 2322.

[0060] Specifically, in this embodiment of the invention, after the two electric curtain rails are connected, the transmission of the second curtain hanging component is realized. Another electric curtain is used as the first curtain rail, which is connected to the motor. When the curtain is opened or closed, the first curtain hanging component of the first curtain rail needs to be translated. At this time, the second opening and closing transmission component of this solution is driven to rotate through the first transmission part. The second docking part 2322 is directly connected to the first transmission part. The clutch piece 2342 drives the clutch plate 2341 to rotate, which in turn drives the upper second meshing part to rotate, so that the second curtain hanging component 22 is translated synchronously.

[0061] When the length of the second curtain rail is less than that of the first curtain rail, the second curtain hanging assembly 22 will move to the end of the housing first. At this time, the first curtain hanging assembly on the first curtain rail still needs to move. Therefore, the first opening and closing transmission assembly on the first curtain rail continues to drive the second docking part 2322 to rotate through the first rotating part. Meanwhile, the upper second engaging part 2321 cannot rotate because the second curtain hanging assembly 22 has moved to the end. At this time, the clutch 2342 on the second docking part 2322 rotates relative to the clutch plate 2341 on the second engaging part 2321, thereby realizing that the second docking part 2322 continues to rotate freely, while the second engaging part 2321 stops rotating. Finally, the opening and closing transmission is realized when electric curtain rails of unequal lengths are docked.

[0062] In this embodiment of the invention, the clutch plate 2341 is detachably connected to the second engagement portion 2321, and the clutch element 2342 is detachably connected to the second mating portion 2322. Its structure is simple and easy to install.

[0063] Specifically, in this embodiment of the invention, the outer periphery of the clutch plate 2341 is provided with a plurality of outwardly extending engaging portions 23411, and the lower end of the second engaging portion 2321 is provided with a recess 23211 into which the clutch plate 2341 can be inserted. The peripheral wall of the recess 23211 is provided with a plurality of locking grooves 23212 for the engaging portions 23411 to engage. In this embodiment of the invention, the upper end face of the second docking portion 2322 is provided with a plurality of upwardly extending locking posts 23221, and the clutch member 2342 is provided with locking holes 23421 corresponding to the locking posts 23221. Its structure is simple and easy to install. Moreover, after installation, it can achieve synchronous rotation of the second engaging portion 2321 and the clutch plate 2341, and synchronous rotation of the second docking portion 2322 and the clutch member 2342.

[0064] In this embodiment of the invention, a downwardly extending central post 2323 is further provided within the recess 23211 of the second engagement portion 2321. The clutch plate 2341, the clutch element 2342, and the second mating portion 2322 are all provided with through holes for the central post 2323 to pass through. Furthermore, the elastic element 235 is a spring, and the elastic element 235 is sleeved on the central post 2323. The elastic element abuts against the inner wall of the recess, and its other end abuts against the upper end face of the clutch plate.

[0065] In embodiments of the present invention, such as Figures 6 to 10 As shown, the first angle adjustment transmission assembly 15 drives the first hook 91 to rotate. Specifically, the first angle adjustment transmission assembly 15 has the following structure: it includes a first rotating rod 152 and transmission ends 153 located at both ends of the first rotating rod 152. The first rotating rod 152 is arranged along the length of the first guide rail housing 11 and passes through the first curtain hanging assembly 12. One side of the transmission end 153 of the first rotating rod 152 engages with the first transmission accessory 151. The rotation axis of the first rotating rod 152 is not collinear with the rotation axis of the first transmission accessory 151. The first angle adjustment transmission assembly of the first curtain guide rail drives the first hook to rotate. Furthermore, the addition of a first transmission accessory extending outside the first guide rail housing allows for transmission during hook rotation through the cooperation of the outer transmission component and the first transmission accessory. This improvement makes on-site installation of multi-section curtain guide rails more convenient and efficient, and also facilitates later disassembly and maintenance.

[0066] In this embodiment of the invention, the position of the rotation axis is changed by the first transmission component, thereby avoiding the problem of inconvenient transmission connection after connection due to structural fit issues. The rotation axis of the first rotating rod is generally located on one side inside the guide rail housing.

[0067] Furthermore, the rotation axis of the first rotating rod 152 and the rotation axis of the first transmission accessory 151 are located on the same horizontal plane. This design is simple, easy to install, and changes the position of the transmission axis by using the first transmission accessory 151; originally, the transmission axis was the rotation axis of the first rotating rod 152, but in this design, it becomes the rotation axis of the first transmission accessory 151. In particular, in this design, the rotation axis of the first transmission accessory 151 and the axis of the first hook 91 are located on the same vertical plane and perpendicular. This structure facilitates the transmission of the first transmission accessory 151 to another electric curtain via the second transmission part 32. It also allows for connection at any angle within a certain range.

[0068] In this embodiment of the invention, the first curtain rail 1 further includes a docking member 16 disposed within the first rail housing 11. The transmission end 153 extends to the docking member 16, and the first transmission accessory 151 is mounted on the docking member 16. One end of the first transmission accessory 151 engages with the transmission end 153, and the other end extends outside the first rail housing 11. In this design, the docking member 16 is used to install the first transmission accessory 151 and the transmission end 153, while simultaneously enabling the first transmission accessory 151 and the transmission end 153 to mesh with each other. The simple structure makes installation more convenient.

[0069] Specifically, in this embodiment of the invention, the end of the first transmission component 151 that mates with the transmission end 153 is a gear structure, and the end extending outside the first guide rail housing 11 is a helical gear structure. The helical gear structure mainly mates with the second transmission part at any angle.

[0070] In this embodiment of the invention, the docking member 16 is provided with a mounting portion 161 for installing the first transmission accessory 151. The docking member 16 is also provided with a guide hole 162 penetrating both ends of the docking member 16 and allowing the transmission end 153 to pass through. Furthermore, the mounting portion 161 is provided with a surrounding protrusion 163. When the first transmission accessory 151 is installed in the mounting portion 161, the gear structure at one end of the first transmission accessory 151 is located inside the surrounding protrusion 163. The surrounding protrusion 163 has a notch on the side facing downwards towards the guide hole 162, through which the gear structure at one end of the first transmission accessory 151 meshes with the transmission end 153. Its simple structure facilitates the meshing of the first transmission accessory 151 and the transmission end 153, making installation more convenient.

[0071] In this embodiment of the invention, the transmission end 153 is detachably connected to the first rotating rod 152. Its structure is simple, easy to install, and can be applied to existing rotating rod structures.

[0072] In this embodiment of the invention, the outer contour of the first rotating rod 152 is polygonal. By cooperating with the structure on the first curtain hanging assembly 12, the rotation of the first rotating rod 152 drives the first hook 91 on the first curtain hanging assembly 12 to rotate, thereby achieving angle adjustment. In this design, the outer peripheral surface of the first rotating rod 152 is hexagonal.

[0073] Specifically, the first rotating rod 152 has mounting guide holes 1521 extending along its length and passing through both ends of the first rotating rod 152. The cross-sectional shape of the mounting guide holes 1521 is polygonal. Furthermore, the transmission end 153 includes a spur gear 1531 and a plug-in rod portion 1532 connected to one side of the spur gear 1531. The outer contour of the plug-in rod portion 1532 corresponds to the cross-sectional shape of the mounting guide holes 1521 and can be inserted into the mounting guide holes 1521. This allows the transmission end 153 to be installed according to actual needs, and the use of polygonal mounting guide holes and corresponding polygonal plug-in rod portions enables synchronous rotation after insertion, thus facilitating transmission.

[0074] Specifically, in this embodiment of the invention, the transmission end 153 of the first rotating rod 152 is engaged with one end of the first transmission accessory 151 through a gear structure. That is, one end of the first transmission accessory 151 also has a gear structure, and the other end of the first transmission accessory 151 is engaged with the second transmission part 32 in a gear meshing structure. In this solution, the meshing method adopts a helical gear structure.

[0075] Specifically, in this embodiment of the invention, the first curtain hanging assembly 12 includes multiple trolleys 121, one of which is a main trolley. The main trolley is provided with a sliding seat 122, and each trolley 121 is connected to an adjacent trolley via a linkage belt 123. In this embodiment of the invention, the principle by which the first opening and closing transmission assembly 13 drives the multiple trolleys to translate is as follows: the sliding seat 122 is provided with a connecting block 124, which is connected to the first transmission belt 133. This allows the main trolley to translate relative to the first guide rail housing 11 as the first transmission belt 133 moves, while the other trolleys translate through the movement of the main trolley and the linkage of the linkage belt 123.

[0076] In this embodiment of the invention, multiple trolleys are each equipped with the aforementioned first hook 91. The principle by which the first angle adjustment transmission assembly 15 drives the first hooks 91 on the multiple trolleys to achieve angle adjustment is as follows: Taking a single trolley 121 as an example, the trolley has an inner cavity, and the trolley has adjustment holes penetrating its two end faces. A rotating adjustment block 125 extending into the inner cavity is provided in the adjustment hole, and the first hook 91 is provided with an adjustment part located within the inner cavity. The adjustment part is a gear structure, and the axis of the rotating adjustment block 125 is perpendicular to the axis of the adjustment part. The outer periphery of the 25 is provided with a raised adjusting edge, which is spirally arranged along the outer periphery of the rotating adjusting block 125. The rotating adjusting block 125 has an inner hole through which the first rotating rod 152 passes, and the inner side of the inner hole matches the outer contour of the first rotating rod 152. When the first rotating rod 152 rotates, it can drive the rotating adjusting block 125 to rotate. When the rotating adjusting block 125 rotates, the adjusting edge and the gear of the adjusting part engage with the gear clearance, thereby causing the adjusting part to rotate, and finally realizing the rotation of the first hook 91 to adjust the angle of the first hook 91. In this solution, the first hook 91 is used to connect the curtain clip, and the curtain is clamped by the curtain clip, thereby realizing the above-mentioned light adjustment of the curtain.

[0077] In this plan, such as Figure 11 As shown, in order to achieve synchronous transmission of the first rotating rod 152 and the second rotating rod 252 through the second transmission part 32, so that the rotation directions of the first hook 91 and the second hook 92 are in the same direction, the first rotating rod 152 is located on the left side of the first viewing direction, and the second rotating rod 252 is located on the right side of the second viewing direction (arrow 1001 in the figure represents the first viewing direction, that is, looking from one end of the first curtain rail 1 towards the first connecting end; arrow 1002 in the figure represents the second viewing direction, that is, looking from the second connecting end towards the other end of the second curtain rail 2).

[0078] This arrangement ensures that when the first rotating rod 152 rotates, the rotation trajectory of the adjusting block 125 on the first rotating rod 152 acting on the first hook 91 (the dotted line in the enlarged view of the first curtain hanging assembly in the figure) is the same as the rotation trajectory of the adjusting block on the second rotating rod 252 acting on the second hook 92 (the dotted line in the enlarged view of the second curtain hanging assembly in the figure), thus making the rotation directions of the first hook 91 and the second hook 92 the same. The rotation trajectory acting on the first hook 91 is: the travel path of the adjusting block 125 during rotation, with a fixed point on it as a reference, as this fixed point contacts the first hook 91 during rotation.

[0079] When the first rotating rod 152 rotates, it is transmitted to the second rotating rod 252 through the first transmission accessory 151, the second transmission part 32, and the second transmission accessory 251, causing the second rotating rod 252 to rotate in the opposite direction to the first rotating rod 152. For example, the rotation trajectory of the rotating adjustment block 125 on the first rotating rod 152 acting on the first hook 91 is from above the rotation axis of the rotating adjustment block 125 in a clockwise direction to below the rotation axis (the rotation direction is referenced from the first viewing angle). At this time, the rotation trajectory of the rotating adjustment block on the second rotating rod 252 acting on the second hook 92 is from above the rotation axis of the rotating adjustment block in a counterclockwise direction to below the rotation axis (the rotation direction is referenced from the second viewing angle).

[0080] If the above structure is such that the first rotating rod 152 is located on the left side of the first viewing angle and the second rotating rod 252 is located on the left side of the second viewing angle, the rotation trajectory of the rotating adjustment block 125 on the first rotating rod 152 acting on the first hook 91 is from above the rotation axis of the rotating adjustment block 125 in a clockwise direction to below the rotation axis. At this time, the rotation trajectory of the rotating adjustment block on the second rotating rod 252 acting on the second hook 92 is from below the rotation axis of the rotating adjustment block in a counterclockwise direction to above the rotation axis. At this time, the directions of synchronous rotation of the first hook 91 and the second hook 92 are opposite.

[0081] In this embodiment of the invention, the operating principle of the second opening and closing transmission component 23 and the second angle adjustment transmission component 25 of the second curtain rail 2 is the same as that of the first opening and closing transmission component 13 and the first angle adjustment transmission component 15.

[0082] Furthermore, in this embodiment of the invention, the first transmission part 31 has a spur tooth structure, and the second transmission part 32 has a helical tooth structure. Similarly, the first transmission accessory 151 and the second transmission accessory 251 also have helical tooth portions that engage with the helical teeth of the second transmission part 32, thereby achieving multi-angle docking transmission.

[0083] Furthermore, in this embodiment of the invention, the first connecting end 14 is provided with a first end cap 141 connected to the first guide rail housing 11. The end face of the first end cap 141 is provided with an outwardly extending first connecting portion 1411. The first end cap 141 is also provided with a first through hole 1412. The first connecting portion 1411 is located outside the first through hole 1412. The first connecting portion 1411 is provided with a groove 1413 opened along the outer contour of the first connecting portion 1411. The lower end face of the first connecting portion 1411 is also provided with a mounting portion 1414. The first transmission accessory 151 is located at the first through hole 1412.

[0084] The universal joint transmission component 3 is installed on the first joint part 1411, and the first transmission part 31 is located in the slot 1413 and is connected to the first opening and closing transmission component 13. The second transmission part 32 is provided on the mounting part 1414 and is connected to the first transmission accessory 151 on the lower side for transmission.

[0085] In embodiments of the present invention, such as Figure 18 , Figure 19 As shown, the specific structure of the first end cap 141 is as follows: the first end cap 141 has a connecting cavity 1410 that can be connected to the end of the guide rail housing; the end face of the first end cap 141 has an outwardly extending first connecting portion 1411; the first connecting portion 1411 has a groove 1413 opened along the outer contour of the first connecting portion 1411; the lower end face of the first connecting portion 1411 also has a mounting portion 1414; the end face of the first end cap 141 also has a first through hole 1412, the first through hole 1412 is located below the mounting portion 1414, and the first through hole 1412 communicates with the connecting cavity 1410. Its overall structure is simple. It allows for detachable docking with the end cap of another electric curtain through the first connecting portion. After docking, the first end cap has a groove, a first through hole, and other structures, facilitating the extension of the opening and closing transmission components and angle transmission components inside the electric curtain onto the first connecting portion, thus making it suitable for transmission after multi-angle docking.

[0086] Furthermore, in this embodiment of the invention, the first end cap 141 further includes an upper cover 142, which is detachably connected to the first end cap 141. Specifically, the first end cap 141 is provided with a first mounting cavity 143, and the side wall of the first mounting cavity 143 is provided with a hollow portion 1431 extending through the connecting cavity 1410. The upper cover 142 is used to be installed on the upper end of the first mounting cavity 143 to protect the components placed in the first mounting cavity 143, and is detachable for easy installation.

[0087] In this embodiment of the invention, the first mounting cavity 143 is mainly used to mount the first mating gear 132. The main function of the first mating gear 132 is to mesh with the first transmission belt. Therefore, the first transmission belt needs to extend from the inside of the first guide rail housing 11 to the first mounting cavity 143 to cooperate with the first mating gear 132. Thus, in this solution, the first end cover 141 is provided with the first mounting cavity 143, and the side wall of the first mounting cavity 143 is provided with a hollow portion 1431 that penetrates to the connecting cavity 1410. This hollow portion 1431 mainly facilitates the passage of the first transmission belt.

[0088] In this embodiment of the invention, the specific structure of the slot 1413 is as follows: one end of the upper cover 142 extends to the upper side of the first connecting part 1411, and forms the slot 1413 between it and the upper end face of the first connecting part 1411. The slot 1413 is connected to the first mounting cavity 143.

[0089] Specifically, in this embodiment of the invention, a first central shaft connecting portion 144 is provided in the first mounting cavity 143, and an upper central shaft connecting portion 1415 is provided on the upper end face of the first connecting portion 1411. The axis of the first central shaft connecting portion 144 is parallel to and coplanar with the axis of the upper central shaft connecting portion 1415. The first central shaft connecting portion 144 is used to install the first mating gear 132, while the upper central shaft connecting portion 1415 is used to install the first transmission portion 31. In addition, for transmission purposes, the first mating gear 132 is provided with a first meshing portion 1321 and a first mating portion 1322 that mesh with the first transmission belt. The first mating portion 1322 is used to cooperate with the first transmission portion 31 for transmission, and the first transmission portion 31 and the first meshing portion 1321 are coaxially mounted and rotate synchronously, and are driven to rotate by the first transmission belt. In this design, the axis of the first central shaft connecting part 144 is parallel to and coplanar with the axis of the upper central shaft connecting part 1415, which facilitates installation and allows the first mating gear 132 and the first transmission part 31 to be installed in the corresponding positions for cooperation.

[0090] In this embodiment of the invention, the mounting portion 1414 is provided with a lower central shaft connecting portion 1416, the axis of which is collinear with the axis of the upper central shaft connecting portion 1415. The lower central shaft connecting portion 1416 is mainly used to install the second transmission portion 32, which is mainly used to change the rotation of the first angle adjustment transmission component along the horizontal axis to rotation along the vertical axis, thus facilitating docking with the angle adjustment transmission component of another electric curtain that rotates along the horizontal axis.

[0091] Correspondingly, in this embodiment of the invention, the second connecting end 24 is provided with a second end cap 241 connected to the second guide rail housing 21. The end face of the second end cap 241 is provided with an outwardly extending second connecting portion 2411. The second end cap 241 is also provided with a second through hole 2412. The axis of the second through hole 2412 is on the same horizontal plane as the axis of the first through hole 1412. The second end cap 241 is also provided with a notch 2413 for one side of the second mating gear 232 to extend to the second connecting portion 2411. The notch 2413 is on the same horizontal plane as the groove 1413.

[0092] In embodiments of the present invention, such as Figure 20 , Figure 21As shown, the specific structure of the second end cap 241 is as follows: the second end cap 241 has a second connecting cavity 2410 that can be connected to the end of the guide rail housing; the end face of the second end cap 241 has an outwardly extending second connecting portion 2411; the end face of the second end cap 241 facing the second connecting portion 2411 has a notch 2413, and the end face also has a second through hole 2412, the second through hole 2412 is located below the notch 2413, and both the second through hole 2412 and the notch 2413 communicate with the second connecting cavity 2410. Its overall structure is simple. It allows for detachable docking with the end cap of another electric curtain through the second connecting portion. After docking, the second end cap has a notch, a second through hole, and other structures, facilitating the extension of the opening and closing transmission components and angle transmission components inside the electric curtain to the second connecting portion, thus making it suitable for transmission after multi-angle docking.

[0093] Furthermore, in this embodiment of the invention, the upper surface of the second connecting portion 2411 is provided with an upwardly protruding docking portion 2414, and the second through hole 2412 is opposite to the docking portion 2414. In this solution, the docking portion 2414 is used for connection and alignment. Specifically, the docking portion 2414 has a connecting hole 2415 penetrating its upper and lower ends in the middle. It connects with the first end cap, and is locked with the connector 4 through the connecting hole 2415 on the docking portion 2414, and can achieve angled connection.

[0094] In addition, in this embodiment of the invention, the second end cap 241 further includes a connecting cap 242, which is detachably connected to the second end cap 241. Specifically, the second end cap 241 is provided with a second mounting cavity 243, and the side wall of the second mounting cavity 243 is provided with a second hollow portion 2431 that penetrates into the second connecting cavity 2410, the notch 2413 communicating with the second mounting cavity 243. The second end cap 241 is used to be installed on the upper end of the second mounting cavity 243 to protect the components placed in the second mounting cavity 243, and is detachable for easy installation.

[0095] In addition, in this embodiment of the invention, the second mounting cavity 243 is used to install the second docking gear 232, and one side of the second docking gear 232 is exposed from the notch 2413, so that after docking with the first end cover, the second docking gear 232 can directly dock with the first transmission part 31.

[0096] In this embodiment of the invention, the central axis of the docking portion 2414 is perpendicular to and coplanar with the axis of the second through hole 2412. The second through hole 2412 is used for the end of the second angle adjustment transmission component to extend out. In this solution, through the structural design of the end cap, after it extends out, it is directly opposite the middle of the docking portion 2414. In this way, after the end cap is docked with the first end cap, the second angle adjustment transmission component can be directly docked and transmitted with the second transmission part.

[0097] In this embodiment of the invention, the locking component 4 can be a screw, bolt, etc., which has a simple structure and is easy to install and disassemble.

[0098] In this embodiment of the invention, the central axis of the connecting column 2413 is collinear with the rotation axis of the first transmission part 31 and the second transmission part 32.

[0099] This invention provides an electric curtain with a universal joint structure. It achieves detachable connection at any angle through the first joint end of the first curtain rail and the second joint end of the second curtain rail. Moreover, at the same time as the connection, this solution adds a universal joint transmission component so that after the first and second curtain rails are connected at any angle, the first curtain hanging component and the second curtain hanging component can move synchronously, and the first hook and the second hook can rotate synchronously. Through this improvement, the on-site installation of multi-section curtain rails is more convenient and efficient, and it is also easier to disassemble and maintain later.

[0100] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this invention.

[0101] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An electric curtain with a universal joint structure, comprising at least a first curtain rail (1) and a second curtain rail (2), characterized in that: The first curtain rail (1) includes at least a first curtain hanging assembly (12) that can move along the length of the first curtain rail (1), and the first curtain hanging assembly (12) is provided with a rotatable first hook (91). The second curtain rail (2) includes at least a second curtain hanging assembly (22) that can move along the length of the second curtain rail (2), and the second curtain hanging assembly (22) is provided with a rotatable second hook (92). The first curtain rail (1) includes a first rail housing (11), a first opening and closing transmission assembly (13), and a first angle adjustment transmission assembly (15). The first opening and closing transmission assembly (13) is used to drive the first curtain hanging assembly (12) to move along the length direction of the first rail housing (11). The first angle adjustment transmission assembly (15) is used to drive the first hook (91) on the first curtain hanging assembly (12) to rotate. The second curtain rail (2) includes a second rail housing (21), a second opening and closing transmission assembly (23), and a second angle adjustment transmission assembly (25). The second opening and closing transmission assembly (23) is used to drive the second curtain hanging assembly (22) to move along the length direction of the second rail housing (21). The second angle adjustment transmission assembly (25) is used to drive the second hook (92) on the second curtain hanging assembly (22) to rotate. One end of the first curtain rail (1) is a first connecting end (14), and one end of the second curtain rail (2) is a second connecting end (24). The second curtain rail (2) can be detachably connected to the first connecting end (14) of the first curtain rail (1) at any angle through the second connecting end (24). The electric curtain also includes a universal connecting transmission component (3) provided on the first connecting end or the second connecting end. The universal connecting transmission component (3) includes a first transmission part (31) and a second transmission part (32). The first transmission part (31) is used to connect the first opening and closing transmission assembly (13) with the second opening and closing transmission assembly (23), and the second transmission part (32) is used to connect the first angle adjustment transmission assembly (15) with the second angle adjustment transmission assembly (25). When the first curtain hanging assembly (12) moves, the second curtain hanging assembly (22) moves through the first transmission part (31), and when the first hook (91) rotates, the second hook (92) rotates through the second transmission part (32).

2. The electric curtain with a universal splicing structure according to claim 1, characterized in that, The angle between the first curtain rail (1) and the second curtain rail (2) after they are joined is 80° to 280°.

3. The electric curtain with a universal joint structure according to claim 2, characterized in that, The second transmission part (32) is located below the first transmission part (31) and is coaxially arranged with the first transmission part (31).

4. The electric curtain with a universal joint structure according to claim 2, characterized in that, The first angle adjustment transmission assembly (15) is provided with a first transmission accessory (151) extending to the first connecting end (14), and the second angle adjustment transmission assembly (25) is provided with a second transmission accessory (251) extending to the second connecting end (24). The rotation axes of the first transmission accessory (151) and the second transmission accessory (251) are perpendicular to the rotation axis of the second transmission part (32).

5. The electric curtain with a universal joint structure according to claim 4, characterized in that, The first opening and closing transmission assembly (13) includes a first transmission gear (131), a first docking gear (132), and a first transmission belt (133) that cooperates with the first transmission gear (131) and the first docking gear (132). The first docking gear (132) is located on one side of the first connecting end (14), and the first docking gear (132) is provided with a first meshing part (1321) and a first docking part (1322) that mesh with the first transmission belt (133). One side of the first docking part (1322) extends to the first connecting end (14) and meshes with the first transmission part (31). The second opening and closing transmission assembly (23) includes a second transmission gear (231), a second docking gear (232), and a second transmission belt (233) that cooperates with the second transmission gear (231) and the second docking gear (232). The second docking gear (232) is located on one side of the second connecting end (24), and the second docking gear (232) is provided with a second engagement part (2321) and a second docking part (2322) that mesh with the second transmission belt (233). One side of the second docking part (2322) extends to the second connecting end (24) and meshes with the first transmission part (31).

6. The electric curtain with a universal splicing structure according to claim 4, characterized in that, The first angle adjustment transmission assembly (15) includes a first rotating rod (152) and transmission ends (153) disposed at both ends of the first rotating rod (152). The first rotating rod (152) is arranged along the length direction of the first guide rail housing (11), and the first rotating rod (152) passes through the first curtain hanging assembly (12). One side of the transmission end (153) of the first rotating rod (152) engages with the first transmission accessory (151).

7. The electric curtain with a universal joint structure according to claim 5, characterized in that, The first connecting end (14) is provided with a first end cap (141) connected to the first guide rail housing (11). The end face of the first end cap (141) is provided with an outwardly extending first connecting part (1411). The first end cap (141) is also provided with a first through hole (1412). The first connecting part (1411) is located outside the first through hole (1412). The first connecting part (1411) is provided with a groove (1413) opened along the outer contour of the first connecting part (1411). The lower end face of the first connecting part (1411) is also provided with a mounting part (1414). The first transmission accessory (151) is located at the first through hole (1412). The universal joint transmission component (3) is installed on the first joint (1411), and the first transmission part (31) is located in the slot (1413) and is connected to the first opening and closing transmission assembly (13). The second transmission part (32) is provided on the mounting part (1414) and is connected to the first transmission accessory (151) on the lower side for transmission.

8. The electric curtain with a universal splicing structure according to claim 7, characterized in that, The second connector end (24) is provided with a second end cap (241) connected to the second guide rail housing (21). The end face of the second end cap (241) is provided with an outwardly extending second connector portion (2411). The second end cap (241) is also provided with a second through hole (2412). The axis of the second through hole (2412) is on the same horizontal plane as the axis of the first through hole (1412). The second end cap (241) is also provided with a notch (2413) for one side of the second mating gear (232) to extend to the second connector portion (2411). The notch (2413) is on the same horizontal plane as the groove (1413).

Images