Day and night curtain

Abstract

The invention relates to a day and night curtain. The technical problem that two ends of an existing day and night curtain cannot operate synchronously is solved. Comprising a curtain shell and a curtain body arranged on the lower side of the curtain shell, a double-shaft motor is arranged in the curtain shell, output shafts are arranged at the two ends of the double-shaft motor respectively, at least two winders are sequentially arranged on the outer sides of the two ends of the double-shaft motor respectively, and rope winding wheels wound with pull ropes connected with the curtain body are arranged in the winders. A double-rod type linkage structure is arranged between the double-shaft motor and the rope winding wheel, wherein the rope winding wheel in at least one winding device located on the outer side of one end of the double-shaft motor and the rope winding wheel in at least one winding device located on the outer side of the other end of the double-shaft motor can rotate synchronously through the double-rod type linkage structure. The double-shaft motor has the advantages that the two motors in the double-shaft motor can be mutually crossed through the two transmission rod bodies to transmit the reels at the two ends, and the transmission synchronization effect of the reels can be guaranteed. According to the quick release structure of the rope winding wheel, the rope winding wheel can be directly disassembled under the condition that the transmission rod body is not influenced, and the stay rope can be conveniently maintained.

Description

Technical Field

[0001] The invention belongs to the technical field of electric curtain equipment, and in particular relates to a day-night curtain. Background Art

[0002] Day and night curtains combine the shading and light-transmitting functions of traditional curtains. With a dual-purpose design, day and night curtains are widely used in various home scenes, such as bedrooms, living rooms, study rooms, balconies, etc. As day and night curtains gradually replace transmission curtains, the market share of day and night curtains is getting higher and higher, and people's demand for day and night curtains is also getting higher and higher; currently, most of the existing day and night curtains use winders to control the lifting and lowering of the curtain body, and the existing winder driving methods mostly control a single transmission rod through a driving motor to drive the winders at both ends to rotate synchronously; however, this driving method can only be applied to day and night curtains with a shorter length, and when the length of the day and night curtain is too long, it is easy to cause the transmission speeds at both ends of the transmission rod to be inconsistent, resulting in the curtain body being unable to run synchronously, affecting the user experience. Summary of the invention

[0003] The object of the present invention is to provide a day-night curtain in view of the above problems.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a day-night curtain, comprising a curtain shell and a curtain body arranged on the lower side of the curtain shell, a double-axis motor with output shafts at both ends is arranged in the curtain shell, at least two winders are arranged on the outer sides of the two ends of the double-axis motor in sequence, and each of the winders has a rope reel with a pull rope connected to the curtain body wound thereon, and a double-rod linkage structure is provided between the double-axis motor and the rope reel, which can rotate synchronously with the rope reel in at least one winder located on the outer side of one end of the double-axis motor and the rope reel in at least one winder located on the outer side of the other end of the double-axis motor. The double-rod linkage structure can make the double-axis motor drive the rope reels in the winders at both ends to rotate synchronously, thereby improving the synchronous stability of the curtain body lifting and lowering and improving the user experience.

[0005] In the above-mentioned day and night curtain, the double-rod linkage structure includes two transmission rod bodies arranged in the curtain shell and extending axially along the outer side of the double-axis motor, the two transmission rod bodies are equal in length, the two ends of the transmission rod bodies are aligned and arranged parallel to each other, and the two transmission rod bodies pass through each winding device located on the outer side of the two ends of the double-axis motor in turn, the output shaft at one end of the double-axis motor is transmission-connected to one of the transmission rod bodies and the output shaft at the other end is transmission-connected to the remaining transmission rod body, one end of any one of the transmission rod bodies is transmission-connected to the winding devices located on the outer side of one end of the double-axis motor and arranged in a direction gradually away from the double-axis motor in an even-numbered position, and the other end of the transmission rod body is transmission-connected to the winding devices located on the outer side of the other end of the double-axis motor and arranged in a direction gradually away from the double-axis motor in an odd-numbered position, the two motors in the double-axis motor can cross each other and drive the winding devices at both ends respectively, which can ensure that multiple winding devices run synchronously during operation and ensure operation stability.

[0006] In the above-mentioned day-night curtain, transmission housings are respectively provided at both ends of the dual-axis motor, the transmission rod bodies are all passed through the transmission housing, and the two transmission rod bodies are respectively connected to different output shafts through rod body rotation transmission assemblies; the rod body rotation transmission assembly includes an output gear arranged in the transmission housing and connected to the output shaft, and the transmission rod bodies are respectively provided with rod body driving gears located in different transmission housings and meshing with output gears on different output shafts; the winder includes a winder housing, the rope winding wheel is rotatably arranged in the winder housing, and one end of the winder housing has a rope winding transmission gear set connected to the rope winding wheel, the two transmission rod bodies are axially passed through each winder housing, the rope winding transmission gear sets in the two adjacent winders on the outside of the same end of the dual-axis motor are connected to different transmission rod bodies, and the dual-axis motor has a The rope winding transmission gear groups in the two adjacent winders at the outer ends are respectively located at the ends of the two winders away from each other; the rope winding transmission gear group includes a rope winding transmission gear arranged on the inner side of one end of the winder shell and coaxially connected to the rope winding wheel, and a rod body transmission gear meshing with the rope winding transmission gear is arranged on the lower side of the rope winding transmission gear, and the rod body transmission gear is connected to one of the transmission rod bodies; the cross-section of the transmission rod body is non-circular and the centers of the rod body driving gear and the rod body transmission gear both have positioning holes for the transmission rod body to pass through and matching the cross-section of the transmission rod body; the dual-axis motor is cylindrical and the winders located on the outer side of the same end of the dual-axis motor are arranged at equal intervals, and the winders located on the outer sides of both ends of the dual-axis motor are symmetrically arranged, which can ensure that the dual-axis motor can synchronously drive the winders at both ends, improve the transmission synchronization effect, and ensure transmission stability.

[0007] In the above-mentioned day and night curtain, the rope winding wheel and the rope winding transmission gear are connected by a rope winding wheel quick-release structure, and the outer side of the rope winding wheel is provided with a rope pulling anti-disorder structure which can guide the rope wound around the rope winding wheel, and the outer side of the rope winding wheel at one end away from the rope winding transmission gear is provided with a rope pulling limiting structure which is connected to the dual-axis motor and can stop the dual-axis motor from rotating when the curtain body is subject to resistance. The rope pulling limiting structure can stop releasing the rope when the curtain body is obstructed by objects during the process of pulling and releasing the rope, and can prevent the rope from being stuck due to continuous rope releasing, thereby ensuring the smooth operation of the rope pulling.

[0008] In the above-mentioned day and night curtain, the rope winding wheel is in a hollow cylindrical structure, the two ends of the rope winding wheel are respectively open structures and one end of the rope winding wheel is closed by a wheel body end cover, the rope winding wheel quick-release structure includes a movable connecting shaft, one end of the movable connecting shaft is axially movably arranged on the inner side of the wheel body end cover and the other end is axially movably inserted into the inner side of the rope winding transmission gear, at least one limiting protrusion is provided on the circumferential outer side of the wheel body end cover, the open end of the rope winding wheel has a limiting notch corresponding to the limiting protrusion, and the limiting protrusion and the limiting notch are connected by snap connection, and The cross-section of the movable connecting shaft is non-circular, and the center of the wheel body end cover has a first movable channel for inserting one end of the movable connecting shaft and matching with the movable connecting shaft. The center of the rope winding transmission gear has a second movable channel for inserting the other end of the movable connecting shaft and matching with the movable connecting shaft. The end of the rope winding transmission gear away from the rope winding wheel is provided with a quick-connect button assembly located on the outside of the winding device and capable of causing the movable connecting shaft to be separated from the rope winding transmission gear under the action of external force. The quick-connect button assembly can facilitate user operation and control, thereby improving the disassembly efficiency of the rope winding wheel.

[0009] 4. The repairing kit for automotive dents, according to claim 1, wherein the at least one wheel is constructed with opposite ends and are designed to be easily removable, and the two wheels are configured to be easily removable, and the wheels are configured to be easily removable, wherein the at least one wheel is configured to be easily removable, and the wheels are easily removable. The cam is secured in place with a spring that is adapted to engage the second end of the gear train and to engage with the second end of the gear train when the cam is engaged.

[0010] In the above-mentioned day and night curtain, the pull rope limiting structure includes a wire hook which is arranged on the outside of one end of the rope winding wheel and is movably provided with an elastic swing mounting structure to act on the pull rope. One end of the pull rope is a fixed end and the other end is a free end which passes through the outside of the winding device shell and is used to be connected to the curtain body. The fixed end of the pull rope is fixed to one end of the rope winding wheel. A limit sensor is provided above the wire hook which can contact the wire hook when the curtain body is blocked and the free end of the pull rope is loose. A wire seat is provided below the wire hook, and a wire seat is provided on the wire seat for the free end of the pull rope to pass through. A wire sleeve hole, the free end of the pull rope is passed through the wire sleeve hole and passes through the wire hook and the wire seat in sequence and then is arranged on the circumferential outer side of the rope winding wheel, and the wire hook is tilted above the wire seat, a first pulley is provided on the wire hook, and a second pulley located on one side of the wire sleeve hole is provided on one side of the upper end of the wire seat, and the first pulley and the second pulley are staggered up and down, and the free end of the pull rope is arranged on the first pulley and the second pulley in sequence, and the friction of the pull rope during the process of releasing and collecting the rope can be reduced by the first pulley and the second pulley, and the service life of the pull rope can be improved.

[0011] In the above-mentioned day and night curtain, the elastic swing mounting structure includes a swing mounting assembly arranged between the wire-passing hook and the winding device shell and an elastic hook pressing assembly arranged between the wire-passing hook and the winding device shell, the swing mounting assembly includes a hinged cylinder arranged at one end of the wire-passing hook, the two ends of the hinged cylinder are respectively hingedly arranged on the hinged columns on the inner side of the winding device shell, and the end of the wire-passing hook away from the hinged cylinder is the swing end, the first pulley is arranged on the swing end, and a swing limiting structure is provided between the swing end and the winding device shell, the swing limiting structure includes limit columns arranged on both sides of the swing end of the wire-passing hook, and the limit columns are slidingly arranged In the arc-shaped limit groove on the inner side of the winding device shell, the elastic hook pressing assembly includes a spring mounting cylinder arranged in the middle part of the wire-passing hook, a hook pressing spring is arranged in the spring mounting cylinder, the hook pressing spring is exposed from the spring mounting cylinder and acts on the hook pressing seat on the inner side of the winding device shell, the limit sensor is a contact switch, and the outer side of the articulated cylinder has a contact part corresponding to the limit sensor, and the upper end of the limit sensor is provided with a sensor connecting plug located on the outer side of the winding device shell, and the sensor connecting plug is connected to the dual-axis motor, and can be connected to the dual-axis motor control through the sensor connecting plug, so that the limit sensor can control the dual-axis motor.

[0012] In the above-mentioned day and night curtain, the rope-pulling anti-disorder structure includes a rope-winding limiting cover, the rope-pulling movably arranged between the rope-winding limiting cover and the rope-winding wheel, the end of the rope-winding wheel away from the fixed end is the rope-winding entry end, the free end of the rope-pulling wheel is circumferentially arranged on the rope-winding wheel from the rope-winding entry end, and a rope-winding gap is formed between the rope-winding wheel and the rope-winding limiting cover, and a winding guide structure is provided on the inner side of the end of the rope-winding limiting cover close to the rope-winding entry end, the rope-winding limiting cover is in the shape of an arc plate matching the outer side of the rope-winding wheel, and the rope-winding The rope limiting cover extends from one end of the rope winding wheel to the other end, the rope winding gap is set to be of equal width and the width of the rope winding gap is not less than the diameter of the pull rope, the winding guide structure includes a winding guide rib arranged on the inner side of one end of the rope winding limit cover close to the rope winding-in end, the winding guide rib has a winding guide surface on the side of the fixed end of the pull rope, the winding guide rib is abutted against the side of the rope winding wheel, and the pull rope is wound toward the fixed end through the winding guide rib and the winding guide surface, thereby increasing the winding density of the pull rope on the rope winding wheel and reducing the winding range.

[0013] In the above-mentioned day and night curtain, the winding guide rib is arc-shaped and the winding guide surface is an arc-shaped surface, the opening end of the winding guide rib faces the end of the rope limit cover close to the rope winding end and the two ends of the winding guide rib respectively extend to the two sides of the end of the rope limit cover close to the rope winding end, and the winding guide rib is integrally formed on the rope limit cover, and the rope limit cover is sequentially provided with a plurality of strip grooves that penetrate the rope limit cover and extend axially, and the outer side of the rope limit cover has a plurality of limit cover clamping seats, and the limit cover clamping seats are respectively and vertically arranged on the two side edges of the rope limit cover in a one-to-one correspondence, and the limit cover clamping seat and the rope limit cover are connected to form an integrated structure, and the rope limit cover and the winding device shell can be fixed by the limit cover clamping seat, and the integrated structure can improve the overall structural strength and improve the service life.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The dual motors in the dual-axis motor can cross-drive the winding devices at both ends through two transmission rods, which can ensure the transmission synchronization effect of the winding devices.

[0016] 2. The quick-release structure of the rope reel allows the rope reel to be directly disassembled without affecting the transmission rod body, which facilitates maintenance of the pull rope and improves maintenance efficiency.

[0017] 3. The rope anti-disorder structure can provide limited guidance during the rope winding or releasing process, which can effectively prevent the rope from getting stuck or overlapping, and ensure the smooth operation of the rope.

[0018] 4. The rope limiting structure can automatically stop releasing the rope when the curtain encounters an obstacle during the rope pulling and releasing process, which can effectively prevent the phenomenon of rope jamming caused by excessive rope pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the dual-axis motor in the present invention.

[0021] Figure 3 It is a structural schematic diagram of the rope winding wheel in the present invention.

[0022] Figure 4 yes Figure 3 Schematic diagram of the partially enlarged structure.

[0023] Figure 5 It is a structural schematic diagram of the rod body rotation transmission assembly in the present invention.

[0024] Figure 6 It is a structural schematic diagram of the circumventor in the present invention.

[0025] Figure 7 It is a structural schematic diagram of the pull rope in the present invention.

[0026] Figure 8 It is a structural sectional view of the winding device in the present invention.

[0027] Fig. 9 It is a structural explosion diagram of the limiting component in the present invention.

[0028] Fig.10 It is a structural schematic diagram of the pull rope anti-disorder structure in the present invention.

[0029] Fig.11 It is a structural schematic diagram of the wire passing seat in the present invention.

[0030] Fig.12 It is a structural schematic diagram of the pull rope limiting structure in the present invention.

[0031] Fig.13 It is a structural schematic diagram of the shell of the circumventor in the present invention.

[0032] In the figure: curtain shell 1, curtain body 11, double-axis motor 2, output shaft 21, transmission box 22, rod body rotation transmission assembly 23, output gear 231, rod body driving gear 232, winding device 3, winding device shell 31, rope wheel 4, pull rope 41, fixed end 411, free end 412, wheel body end cover 42, limiting protrusion 421, connecting shaft movable seat 422, limiting notch 43, rope winding end 44, double-rod linkage structure 5, transmission rod body 51, rope winding transmission gear group 6, rope winding transmission gear 61, rod body transmission gear 62, positioning hole 63, rope winding wheel quick release structure 7, movable connecting shaft 71, first movable channel 72, second movable channel 73, quick-connect button assembly 74, button movable hole 741, quick-release button 742, limiting assembly 75, limiting groove 751, strip hole 752, elastic limiting portion 753, elastic top pressure assembly 76, top pressure Spring 761, anti-rotation structure 77, button limit convex portion 771, button anti-rotation limit hole 772, rope anti-disorder structure 8, rope winding limit cover 81, strip groove 811, limit cover clamping seat 812, rope winding gap 82, winding guide structure 83, winding guide rib 831, winding guide surface 832, rope limit structure 9, wire hook 91, first pulley 911, second pulley 912, limit sensor 92, wire seat 9 3. Wire sleeve hole 931, elastic swing mounting structure 10, swing mounting assembly 101, hinged cylinder 1011, hinged column 1012, swing end 1013, elastic hook pressing assembly 102, spring mounting cylinder 1021, hook pressing spring 1022, hook pressing seat 1023, swing limiting structure 103, limiting column 1031, arc-shaped limiting groove 1032, contact portion 104, sensor connecting plug 105. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the present day-night curtain comprises a curtain housing 1 and a curtain body 11 arranged at the lower side of the curtain housing 1. A double-axis motor 2 having output shafts 21 at both ends is arranged in the curtain housing 1. The double-axis motor 2 can improve the driving ability and ensure the driving stability. At least two winding devices 3 are arranged in sequence on the outer sides of the two ends of the double-axis motor 2. The double-axis motor 2 can drive multiple winding devices 3 to ensure the driving stability of the winding devices 3. The winding devices 3 are each provided with a rope reel 4 around which a pull rope 41 connected to the curtain body 11 is wound. The rope reel 4 rotates It can drive the pull rope 41 to wind or release the rope so as to realize the lifting and lowering of the curtain body 11. A double-rod linkage structure 5 is provided between the double-axis motor 2 and the rope winding wheel 4, which can synchronously rotate the rope winding wheel 4 in at least one winder 3 located outside one end of the double-axis motor 2 and the rope winding wheel 4 in at least one winder 3 located outside the other end of the double-axis motor 2. Through the double-rod linkage structure 5, the double-axis motor 2 can drive the rope winding wheels 4 in the winders 3 at both ends to rotate synchronously, which can improve the synchronous stability of the lifting and lowering of the curtain body 11 and improve the user experience.

[0035] Specifically, the double-rod linkage structure 5 includes two transmission rod bodies 51 arranged in the curtain shell 1 and extending axially along the outer side of the double-axis motor 2. The two transmission rod bodies 51 are equal in length, and the two ends of the transmission rod bodies 51 are aligned and arranged parallel to each other, which can facilitate the double-axis motor 2 to synchronously drive the winding devices 3 at both ends to ensure the synchronous operation effect of the winding devices 3. The two transmission rod bodies 51 pass through each winding device 3 located on the outer side of the two ends of the double-axis motor 2 in turn, and the output shaft 21 at one end of the double-axis motor 2 is connected to one of the transmission rod bodies 51 for transmission, and the output shaft 21 at the other end is connected to the remaining one The transmission rod body 51 is connected in transmission, and one end of any one of the transmission rod bodies 51 is sequentially connected in transmission with the winders 3 located at the even-numbered positions among the winders 3 located on the outside of one end of the dual-axis motor 2 and arranged in a direction gradually away from the dual-axis motor 2, and the other end of the transmission rod body 51 is sequentially connected in transmission with the winders 3 located at the odd-numbered positions among the winders 3 located on the outside of the other end of the dual-axis motor 2 and arranged in a direction gradually away from the dual-axis motor 2. The two motors in the dual-axis motor 2 can cross each other and drive the winders 3 at both ends respectively, which can ensure that multiple winders 3 run synchronously during operation and ensure operational stability.

[0036] Among them, a transmission box 22 is respectively provided at both ends of the dual-axis motor 2, and the transmission rod bodies 51 all penetrate the transmission box 22 and the two transmission rod bodies 51 are respectively connected to different output shafts 21 through the rod body rotation transmission components 23. The dual-axis motor 2 can drive the transmission rod body 51 to transmit through the rod body rotation transmission component 23, thereby improving the transmission effect between the dual-axis motor 2 and the transmission rod body 51, and the transmission box 22 can protect the rod body rotation transmission component 23, thereby improving the service life of the rod body rotation transmission component 23; the rod body rotation transmission component 23 includes an output gear 231 arranged in the transmission box 22 and connected to the output shaft 21, and the transmission rod body 51 is respectively provided with a plurality of gears located at different transmission positions. The rod driving gear 232 in the moving box body 22 and meshing with the output gear 231 on different output shafts 21, can make the output shaft 21 drive the transmission rod body 51 for transmission through the output gear 231 and the rod driving gear 232, thereby ensuring the transmission effect; the winding device 3 includes a winding device housing 31, a rope winding wheel 4 is rotatably arranged in the winding device housing 31, and one end of the winding device housing 31 has a rope winding transmission gear set 6 connected to the rope winding wheel 4, and the two transmission rod bodies 51 are axially penetrated through each winding device housing 31, and the rope winding transmission gear sets 6 in the two adjacent winding devices 3 on the outside of the same end of the dual-axis motor 2 are connected to different transmission rod bodies 51, and the transmission rod body 51 can drive the rope winding transmission gear set 6 The rope-winding transmission gear set 6 can drive the rope-winding wheel 4 to rotate, thereby ensuring the rotation effect of the rope-winding wheel 4, and then ensuring the lifting effect of the curtain body 11. The rope-winding transmission gear sets 6 in the two adjacent winding devices 3 on the outside of the same end of the dual-axis motor 2 are respectively located at the ends of the two winding devices 3 that are away from each other, which can improve the transmission range of the rope-winding transmission gear set 6 and ensure the overall synchronous transmission effect of the curtain body 11; the rope-winding transmission gear set 6 includes a rope-winding transmission gear 61 arranged on the inner side of one end of the winding device housing 31 and coaxially connected to the rope-winding wheel 4, and a rod body transmission gear 62 meshing with the rope-winding transmission gear 61 is provided on the lower side of the rope-winding transmission gear 61, and the rod body transmission gear 62 is connected to one of the transmission rod bodies 51 The rope winding transmission gear 61 coaxially arranged can be conveniently rotated synchronously with the rope winding wheel 4, and the rod body transmission gear 62 can rotate along with the rotation of the transmission rod body 51, thereby driving the rope winding transmission gear 61 to rotate, thereby ensuring the transmission effect; the cross section of the transmission rod body 51 is non-circular, and the centers of the rod body driving gear 232 and the rod body transmission gear 62 are provided with a positioning hole 63 for the transmission rod body 51 to pass through and matching the cross section of the transmission rod body 51, and the positioning hole 63 can facilitate the rod body driving gear 232 and the rod body transmission gear 62 to be fixedly connected to the transmission rod body 51, thereby improving the installation efficiency, and the transmission rod body 51 with a non-circular cross section can improve the load-bearing capacity and ensure the transmission stability;The double-axis motor 2 is cylindrical and the winding devices 3 located outside the same end of the double-axis motor 2 are arranged at equal intervals, and the winding devices 3 located outside the two ends of the double-axis motor 2 are arranged symmetrically, which can ensure that the double-axis motor 2 can synchronously drive the winding devices 3 at both ends, improve the transmission synchronization effect, and ensure the transmission stability. ;

[0037] like Figure 1 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the rope reel 4 and the rope reel transmission gear 61 are connected via a rope reel quick-release structure 7, which can facilitate the rapid disassembly of the rope reel 4 without affecting the transmission rod body 51, so as to facilitate the maintenance of the pull rope 41 on the rope reel 4, thereby improving the disassembly efficiency and thus the maintenance efficiency of the pull rope 41, and a rope anti-disorder structure 8 is provided on the outer side of the rope reel 4 to guide the pull rope 41 arranged on the rope reel 4, and the height of the pull rope 41 wound on the rope reel 4 can be adjusted by stretching the anti-disorder structure 8. The rope limiting structure can effectively prevent the rope 41 from overlapping or getting stuck during the winding process, thereby improving the smoothness of the operation of the rope 41. A rope limiting structure 9 is provided on the outer side of the end of the rope winding wheel 4 away from the rope winding transmission gear 61, which is connected to the dual-axis motor 2 and can stop the dual-axis motor 2 from rotating when the curtain body 11 is subject to resistance. The rope limiting structure 9 can stop releasing the rope when the curtain body 11 is blocked by objects during the release of the rope 41, thereby preventing the rope 41 from being stuck due to continuous release of the rope, thereby ensuring the smoothness of the operation of the rope 41.

[0038] Furthermore, the rope winding wheel 4 is of a hollow cylindrical structure, and both ends of the rope winding wheel 4 are open structures respectively, and one end of the rope winding wheel 4 is open and closed by a wheel body end cover 42. The rope winding wheel quick-release structure 7 includes a movable connecting shaft 71, one end of the movable connecting shaft 71 is axially movably arranged on the inner side of the wheel body end cover 42 and the other end is axially movably inserted into the inner side of the rope winding transmission gear 61, and the wheel body end cover 42 is provided with at least one limiting protrusion 421 on the circumferential outer side, and the open end of the rope winding wheel 4 has a limiting notch 43 corresponding to the limiting protrusion 421, and the limiting protrusion 421 is connected to the limiting notch 43 by snapping, and the wheel body end cover 42 can be fixedly set at the open end of the rope winding wheel through the limiting protrusion 421 and the limiting notch 43, so as to ensure the connection stability of the wheel body end cover 42, and the cross-section of the movable connecting shaft 71 is non-circular, and the center of the wheel body end cover 42 has a portion for one end of the movable connecting shaft 71 to be inserted and connected to the movable connecting shaft 7 The first movable channel 72 is adapted to the first movable channel 72, and the center of the rope winding transmission gear 61 is provided with a second movable channel 73 for the other end of the movable connecting shaft 71 to be inserted and adapted to the movable connecting shaft 71. Through the first movable channel 72, one end of the movable connecting shaft 71 can be connected to the wheel body end cover 42 by snapping, and through the second movable channel 73, the other end of the movable connecting shaft 71 can be connected to the rope winding transmission gear 61 by snapping, and the cross-section of the movable connecting shaft 71 is non-circular, which can ensure the connection stability between the rope winding transmission gear 61 and the wheel body end cover 42, and ensure the rotation effect of the rope winding wheel 4, and the end of the rope winding transmission gear 61 away from the rope winding wheel 4 is provided with a quick-connect button assembly 74 located on the outside of the winding device 3 and can make the movable connecting shaft 71 detach from the rope winding transmission gear 61 under the action of external force. The quick-connect button assembly 74 can be convenient for users to operate and control, thereby improving the disassembly efficiency of the rope winding wheel 4.

[0039] Among them, the end of the wheel body end cover 42 away from the rope winding transmission gear 61 has a connecting shaft movable seat 422 that is coaxial with and integrated with the rope winding transmission gear 61, the first movable channel 72 is formed between the connecting shaft movable seat 422 and the wheel body end cover 42, and one end of the movable connecting shaft 71 extends to the circumferential inner side of the connecting shaft movable seat 422, and a limiting component 75 that can prevent the movable connecting shaft 71 from disengaging from the first movable channel 72 is provided between the connecting shaft movable seat 422 and the movable connecting shaft 71. The connecting shaft movable seat 422 can facilitate the plugging of the movable connecting shaft 71, and the limiting component 75 can ensure that the movable connecting shaft 71 will not disengage from the first movable channel 72, thereby ensuring the connection stability between the rope winding wheel 4 and the rope winding transmission gear 61. The limiting component 75 includes a setting The limiting grooves 751 are arranged on both sides of the connecting shaft movable seat 422 and axially extending along the connecting shaft movable seat 422, and both sides of one end of the movable connecting shaft 71 are respectively provided with strip holes 752, and the end of the strip hole 752 away from the rope winding transmission gear 61 is provided with an elastic limiting portion 753, the elastic limiting portion 753 exceeds the strip hole 752 and extends into the limiting groove 751, and the elastic limiting portion 753 can abut against one end of the limiting groove 751, the strip hole 752 can facilitate the installation and arrangement of the elastic limiting portion 753, and the limiting groove 751 can make the elastic limiting portion 753 abut against the connecting shaft movable seat 422, thereby ensuring the limiting effect on the movable connecting shaft 71, effectively preventing the movable connecting shaft 71 from being separated from the first movable channel 72, and the elastic limiting portion 753 can be easily fixed to the movable shaft 71 when the movable shaft 71 is in the movable state. When the locking cam 751 is in the locked state, the locking cam 752 is in the locked state, and the locking cam 753 is in the locked state, so that the locking cam 752 can be locked easily. The end and the end of the movable connecting shaft 71 inserted in the second movable channel 73 are both in a closed state, one end of the pressing spring 761 acts on the inner side of the end of the connecting shaft movable seat 422 away from the wheel body end cover 42 and the other end acts on the inner side of the end of the movable connecting shaft 71 inserted in the second movable channel 73, when the movable connecting shaft 71 is in a disassembled state, pressure is applied to one end of the pressing spring 761, so that the pressing spring 761 is compressed toward the closed end of the connecting shaft movable seat 422, and the movable connecting shaft 71 is extended toward the connecting shaft movable seat 422, and when the movable connecting shaft 71 is in an installed and plugged state, the pressing spring 761 is reset and applies a thrust toward one end of the movable connecting shaft 71, to ensure that the other end of the movable connecting shaft 71 is stably plugged into the second movable channel 73.To ensure the plug-in stability of the movable connecting shaft 71, the quick-connect button assembly 74 includes a button movable hole 741 arranged at the center of one end of the rope winding transmission gear 61 away from the rope winding wheel 4 and connected to the second movable channel 73. A quick-release button 742 extending into the second movable channel 73 and abutting against the end of the movable connecting shaft 71 is movably penetrated in the button movable hole 741, and an anti-rotation structure 77 is provided between the quick-release button 742 and the button movable hole 741. The quick-release button 742 can be easily plugged and connected to the rope winding transmission gear 61 through the button movable hole 741, and the movable connecting shaft 71 can be pushed by the quick-release button 742 to disengage the movable connecting shaft 71 from the second movable channel. The movable channel 73 is convenient for the user to disassemble the rope reel 4, and the anti-rotation structure 77 can prevent the quick release button 742 from rotating in the button movable hole 741, thereby ensuring the installation stability of the quick release button 742. The anti-rotation structure 77 includes a button limiting protrusion 771 arranged on the outside of the quick release button 742, and a button anti-rotation limiting hole 772 axially arranged in the button movable hole 741 and slidably connected to the button limiting protrusion 771. The button limiting protrusion 771 and the button anti-rotation limiting hole 772 can effectively prevent the quick release button 742 from rotating in the button movable hole 741, thereby ensuring the connection effect between the quick release button 742 and the rope reel transmission gear 61.

[0040] Combination Figure 6 , Figure 7 , Figure 8 , Fig.10 , Fig.11 , Fig.12 , Fig.13As shown, the pull rope limiting structure 9 includes a wire hook 91 arranged outside one end of the rope winding wheel 4 and movably provided with an elastic swing mounting structure 10 to act on the pull rope 41. The elastic swing mounting structure 10 can facilitate the wire hook 91 to be movably arranged in the winding device housing 31. One end of the pull rope 41 is a fixed end 411 and the other end is a free end 412 that passes through the outside of the winding device housing 31 and is used to be connected to the curtain body 11. The fixed end 411 of the pull rope 41 is fixed to one end of the rope winding wheel 4. A wire hook 91 is provided above the wire hook 91 when the curtain body 11 is blocked and the free end 412 of the pull rope 41 is blocked. When the pull rope 41 is loosened, the limit sensor 92 can contact the wire hook 91, and when the pull rope 41 is released downward by the gravity of the curtain body 11, the wire hook 91 swings downward and away from the limit sensor 92 through the elastic swing mounting structure 10. When the pull rope 41 is not affected by the gravity of the curtain body 11, the wire hook 91 is reset through the elastic swing mounting structure 10 and abuts against the limit sensor 92. The limit sensor 92 transmits a signal to the dual-axis motor 2, and the dual-axis motor 2 controls the rope winding wheel 4 to stop rotating, which can automatically stop the pull rope 41 from coming out, effectively preventing the pull rope 41 from coming out There are too many lines, which may cause the pull rope 41 to get stuck. To ensure the smooth operation of the pull rope 41, a line seat 93 is provided below the line hook 91, and a line hole 931 is provided on the line seat 93 for the free end 412 of the pull rope 41 to pass through. The free end 412 of the pull rope 41 passes through the line hole 931 and passes through the line hook 91 and the line seat 93 in turn, and then is arranged on the outer side of the rope winding wheel 4. Both sides of the line seat 93 are plug-connected with the winding device housing 31, which can ensure the installation stability of the line seat 93, and the free end 412 of the pull rope 41 can be tightened through the line hole 931. 12 plays a guiding role, and the line hook 91 is tilted above the line seat 93, a first pulley 911 is provided on the line hook 91, and a second pulley 912 located on one side of the line sleeve hole 931 is provided on the upper end of the line seat 93, and the first pulley 911 and the second pulley 912 are staggered up and down, and the free end 412 of the pull rope 41 is sequentially arranged on the first pulley 911 and the second pulley 912. The first pulley 911 and the second pulley 912 can reduce the friction of the pull rope 41 during the process of releasing and collecting the rope, and the service life of the pull rope 41 can be improved.

[0041] Among them, the elastic swing mounting structure 10 includes a swing mounting assembly 101 arranged between the wire hook 91 and the winding device housing 31 and an elastic hook pressing assembly 102 arranged between the wire hook 91 and the winding device housing 31. Through the swing mounting assembly 101, one end of the wire hook 91 can be movably inserted into the winding device housing 31, and the wire hook 91 can be freely swung. Through the elastic hook pressing assembly 102, the wire hook 91 can be compressed when it swings downward under the pulling force of the pull rope 41, and when the wire hook 91 loses the pulling force of the pull rope 41, the wire hook 91 is automatically reset by the elastic hook pressing assembly 102. The swing mounting assembly 101 includes a hinged cylinder 1 arranged at one end of the wire hook 91. 011, both ends of the articulated cylinder 1011 are respectively hingedly arranged on the articulated column 1012 on the inner side of the winding device housing 31, and the end of the line hook 91 away from the articulated cylinder 1011 is a swing end 1013, the first pulley 911 is arranged on the swing end 1013, and a swing limiting structure 103 is arranged between the swing end 1013 and the winding device housing 31, through the articulated cylinder 1011 and the articulated column 1012, one end of the line hook 91 can be movably arranged in the winding device housing 31, and the swing end 1013 can be arranged to swing in a fan shape, and the swing range of the swing end 1013 can be limited by the swing limiting structure 103 to ensure the stability of the line hook 91, and the swing limiting structure 103 includes a swing The limit posts 1031 on both sides of the moving end 1013 are slidably arranged in the arc-shaped limit grooves 1032 on the inner side of the winding device housing 31, and the limit posts 1031 and the arc-shaped limit grooves 1032 can limit the swing angle of the swing end 1013 to ensure the coordination effect between the line-passing hook 91 and the limit sensor 92. The elastic hook pressing component 102 includes a spring mounting cylinder 1021 arranged in the middle of the line-passing hook 91, and a hook pressing spring 1022 is arranged in the spring mounting cylinder 1021. The hook pressing spring 1022 is exposed from the spring mounting cylinder 1021 and acts on the hook pressing seat 1023 on the inner side of the winding device housing 31. The spring mounting cylinder 1021 can facilitate the installation of the hook pressing spring 102 2, and one end of the hook pressing spring 1022 is against the hook pressing seat 1023, and there is a compression space between the hook pressing spring 1022 and the hook pressing seat 1023 under normal conditions, and when the line-passing hook 91 is forced to swing downward, the spring mounting cylinder 1021 drives the hook pressing spring 1022 to be compressed toward the hook pressing seat 1023, and when the line-passing hook 91 is not forced, the hook pressing spring 1022 drives the line-passing hook 91 to reset, the limit sensor 92 is a contact switch, and the outer side of the hinged cylinder 1011 is provided with a contact portion 104 corresponding to the limit sensor 92, and when the line-passing hook 91 is subjected to the pressure of the pull rope 41 and swings downward, the hook pressing spring 1022 is compressed, and the contact portion 104 is away from the limit sensor 92,When the line hook 91 stops receiving the pressure of the pull rope 41, the hook pressing spring 1022 drives the line hook 91 to reset, and the contact part 104 abuts against the limit sensor 92, and the limit sensor 92 controls the double-axis motor 2 to stop driving. The upper end of the limit sensor 92 is provided with a sensor connection plug 105 located outside the winding device housing 31, and the sensor connection plug 105 is connected to the double-axis motor 2. The sensor connection plug 105 can be connected to the control of the double-axis motor 2, so that the limit sensor 92 can control the double-axis motor 2.

[0042] Specifically, the rope anti-disorder structure 8 includes a rope limit cover 81, the rope 41 is movably arranged between the rope limit cover 81 and the rope reel 4, the end of the rope reel 4 away from the fixed end 411 is the rope reeling end 44, the free end 412 of the rope 41 is circumferentially arranged on the rope reel 4 by the rope reeling end 44, and a rope reeling gap 82 is formed between the rope reel 4 and the rope limit cover 81, the rope 41 is wound in the rope reeling gap 92, and a winding guide is provided on the inner side of the end of the rope limit cover 81 close to the rope reeling end 44. The pull rope 41 is fixedly arranged on the rope reel 4 at one end through the fixed end 411, and the free end 412 is movably wound on the rope reel 4. The rope reel limit cover 81 can make the pull rope 41 movably arranged in the rope reel gap 82 in the winding state, which can effectively prevent the pull rope 41 from overlapping and getting stuck, and ensure the smoothness of the rope release and reeling of the pull rope 41. The winding guide structure 83 can guide and limit the pull rope 41 to prevent the pull rope 41 from slipping. The rope reel 4 is unloaded and the pull rope 41 is wound toward the fixed end 411 to ensure the winding effect of the pull rope 41 on the rope reel 4. The rope limit cover 81 is in the shape of an arc plate that matches the outer side of the rope reel 4, and the rope limit cover 81 extends from one end of the rope reel 4 to the other end. The arc plate structure can make the rope limit cover 81 fit the curvature of one side of the rope reel 4, which can improve the limiting and guiding effect of the pull rope 41 on the rope reel 4. The rope gap 82 is set with equal width and the width of the rope gap 82 is not less than the pull rope 41. The diameter of the rope 41, the winding guide structure 83 includes a winding guide rib 831 arranged on the inner side of one end of the rope limiting cover 81 close to the rope winding end 44, the winding guide rib 831 has a winding guide surface 832 on the side of the fixed end 411 of the pull rope 41, the winding guide rib 831 abuts against the side of the rope winding wheel 4, the pull rope 41 is wound toward the fixed end 411 through the winding guide rib 831 and the winding guide surface 832, so as to increase the winding density of the pull rope 41 on the rope winding wheel 4 and reduce the winding range.

[0043] Combination Figure 7 , Figure 8 , Fig.10As shown, the winding guide rib 831 is arc-shaped and the winding guide surface 832 is an arc-shaped surface, the opening end of the winding guide rib 831 faces the end of the rope limiting cover 81 close to the rope winding-in end 44, and the two ends of the winding guide rib 831 extend to both sides of the end of the rope limiting cover 81 close to the rope winding-in end 44, which can improve the guiding and limiting effect of the winding guide rib 831 on the pull rope 41, and the arc shape can increase the contact area with the rope winding wheel 4 to ensure the guiding and limiting effect, and the winding guide rib 831 is integrally formed on the rope limiting cover 81, which can improve the overall structural strength of the winding guide rib 831, improve the service life, and ensure the limiting and guiding effect on the pull rope 41, and the rope limiting cover 81 is sequentially provided with a plurality of winding guide ribs 831 penetrating the rope. The rope limiting cover 81 has an axially extending strip groove 811, which is connected to the rope winding gap 82, and the strip groove 811 can dissipate heat for the pull rope 41 in the rope winding gap 82, effectively preventing the pull rope 41 from overheating during the rope winding and releasing process and affecting the service life. The rope winding limiting cover 81 has a plurality of limit cover clamping seats 812 on the outside, and the limit cover clamping seats 812 are respectively and vertically arranged on the two side edges of the rope winding limiting cover 81 in a one-to-one manner, and the limit cover clamping seats 812 are connected to the rope winding limiting cover 81 as an integrated structure, and the limit cover clamping seats 812 can fix the rope winding limiting cover 81 and the winding device shell 31, and the integrated structure can improve the overall structural strength and improve the service life.

[0044] The principle of this embodiment is that one end of any one of the transmission rod bodies 51 in the double-rod linkage structure 5 is sequentially connected to the rope reel 4 of the winding device 3 at an even-numbered position among the winding devices 3 located outside one end of the double-axis motor 2 and arranged in a direction gradually away from the double-axis motor 2, and the other end of the transmission rod body 51 is sequentially connected to the rope reel 4 of the winding device 3 at an odd-numbered position among the winding devices 3 located outside the other end of the double-axis motor 2 and arranged in a direction gradually away from the double-axis motor 2. The double-axis motor 2 can ensure that the winding devices 3 at both ends can operate synchronously through the cross-transmission mode at both ends, thereby improving the operation synchronization effect, and the rope reel 4 drives the curtain body 11 to rise and fall during the rotation of the rope reel 4, and during the descent of the curtain body 11, the rope 41 is driven through the line by the gravity of the curtain body 11 The hook 91 swings downward, and the elastic hook pressing component 102 is compressed and contracts. When the curtain body 11 is obstructed, the pull rope 41 loses the influence of the gravity of the curtain body 11, so that the elastic hook pressing component 102 drives the over-the-line hook 91 to reset upward, and when the contact part 104 abuts against the limit sensor 92, the dual-axis motor 2 can be controlled to stop driving, and the rope winding wheel 4 stops releasing the rope, and can automatically stop releasing the rope, and can effectively prevent the rope from getting stuck and the like. In the process of winding and releasing the rope 41, the rope anti-disorder structure 8 can effectively prevent the rope 41 from getting stuck and overlapping, and when the rope 41 needs to be maintained, the rope winding wheel quick-release structure 7 can facilitate the quick disassembly of the rope winding wheel 4, thereby improving the disassembly efficiency and the maintenance efficiency of the rope 41.

[0045] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0046] Although this article uses more curtain shell 1, curtain body 11, double-axis motor 2, output shaft 21, transmission box 22, rod body rotation transmission assembly 23, output gear 231, rod body driving gear 232, winding device 3, winding device shell 31, rope wheel 4, pull rope 41, fixed end 411, free end 412, wheel end cover 42, limit convex block 421, connecting shaft movable seat 422, limit notch 43, rope winding end 44, double rod linkage Structure 5, transmission rod body 51, rope winding transmission gear set 6, rope winding transmission gear 61, rod body transmission gear 62, positioning hole 63, rope winding wheel quick release structure 7, movable connecting shaft 71, first movable channel 72, second movable channel 73, quick-connect button assembly 74, button movable hole 741, quick-release button 742, limiting assembly 75, limiting groove 751, strip hole 752, elastic limiting part 753, elastic top pressure assembly 76, top pressure spring 761, Anti-rotation structure 77, button limit convex portion 771, button anti-rotation limit hole 772, rope anti-disorder structure 8, rope limit cover 81, strip groove 811, limit cover clamping seat 812, rope gap 82, winding guide structure 83, winding guide rib 831, winding guide surface 832, rope limit structure 9, wire hook 91, first pulley 911, second pulley 912, limit sensor 92, wire seat 93, wire sleeve hole 931, elastic swing The terms such as movable installation structure 10, swing installation assembly 101, hinged cylinder 1011, hinged column 1012, swing end 1013, elastic hook pressing assembly 102, spring installation cylinder 1021, hook pressing spring 1022, hook pressing seat 1023, swing limiting structure 103, limiting column 1031, arc limiting groove 1032, contact part 104, sensor connecting plug 105, etc., but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A day-night curtain, comprising a curtain housing (1) and a curtain body (11) arranged at the lower side of the curtain housing (1), wherein a double-axis motor (2) having output shafts (21) at both ends is arranged in the curtain housing (1), at least two winding devices (3) are arranged in sequence on the outer sides of both ends of the double-axis motor (2), and each of the winding devices (3) has a rope reel (4) wound with a pull rope (41) connected to the curtain body (11), characterized in that: A double-rod linkage structure (5) is provided between the dual-axis motor (2) and the rope winding wheel (4), which enables the rope winding wheel (4) in at least one winding device (3) located outside one end of the dual-axis motor (2) to rotate synchronously with the rope winding wheel (4) in at least one winding device (3) located outside the other end of the dual-axis motor (2).

2. A day and night curtain according to claim 1, characterized in that: The double-rod linkage structure (5) comprises two transmission rod bodies (51) arranged in the curtain housing (1) and extending axially along the outer side of the double-axis motor (2); the two transmission rod bodies (51) are of equal length; the two ends of the transmission rod bodies (51) are respectively aligned and arranged parallel to each other; the two transmission rod bodies (51) successively pass through the winding devices (3) located at the outer sides of the two ends of the double-axis motor (2); the output shaft (21) at one end of the double-axis motor (2) is transmission-connected to one of the transmission rod bodies (51) and the other end is connected to the transmission rod body (51). The output shaft (21) at one end is transmission-connected to the remaining transmission rod body (51), one end of any transmission rod body (51) is sequentially transmission-connected to the winding devices (3) at even positions among the winding devices (3) located outside one end of the dual-axis motor (2) and arranged in a direction gradually away from the dual-axis motor (2), and the other end of the transmission rod body (51) is sequentially transmission-connected to the winding devices (3) at odd positions among the winding devices (3) located outside the other end of the dual-axis motor (2) and arranged in a direction gradually away from the dual-axis motor (2).

3. A day and night curtain according to claim 2, characterized in that: The two ends of the dual-axis motor (2) are respectively provided with a transmission housing (22); the transmission rod bodies (51) are both passed through the transmission housing (22); and the two transmission rod bodies (51) are respectively connected to different output shafts (21) through rod body rotation transmission components (23); the rod body rotation transmission components (23) include output gears (231) arranged in the transmission housing (22) and connected to the output shaft (21); the transmission rod bodies (51) are respectively provided with gears (231) located in different transmission housings (22) and connected to different output shafts (21); 1); the winding device (3) comprises a winding device housing (31); the rope winding wheel (4) is rotatably arranged in the winding device housing (31); one end of the winding device housing (31) has a rope winding transmission gear set (6) connected to the rope winding wheel (4); two transmission rod bodies (51) axially penetrate each winding device housing (31); the rope winding transmission gear sets (6) in two adjacent winding devices (3) on the outside of the same end of the double-axis motor (2) are connected to the rope winding wheel (4); ) are connected to different transmission rod bodies (51); the rope winding transmission gear sets (6) in the two adjacent winding devices (3) on the outside of the same end of the dual-axis motor (2) are respectively located at the ends of the two winding devices (3) that are away from each other; the rope winding transmission gear set (6) includes a rope winding transmission gear (61) arranged on the inside of one end of the winding device housing (31) and coaxially connected to the rope winding wheel (4); the lower side of the rope winding transmission gear (61) is provided with a rod body transmission gear (62) meshing with the rope winding transmission gear (61); the rod body transmission gear (62) is arranged on the inner side of one end of the winding device housing (31) and meshing with the rope winding transmission gear (61); The movable gear (62) is connected to one of the transmission rod bodies (51); the cross section of the transmission rod body (51) is non-circular, and the centers of the rod body driving gear (232) and the rod body transmission gear (62) are provided with a positioning hole (63) for the transmission rod body (51) to pass through and matching the cross section of the transmission rod body (51); the dual-axis motor (2) is cylindrical, and the winding devices (3) located outside the same end of the dual-axis motor (2) are arranged at equal intervals, and the winding devices (3) located outside the two ends of the dual-axis motor (2) are symmetrically arranged.

4. A day and night curtain according to claim 3, characterized in that: The rope reel (4) and the rope reel transmission gear (61) are connected via a rope reel quick-release structure (7), and a rope pull anti-disorder structure (8) capable of guiding a rope (41) wound around the rope reel (4) is provided on the outer side of the rope reel (4), and a rope pull limit structure (9) connected to the double-axis motor (2) is provided on the outer side of one end of the rope reel (4) away from the rope reel transmission gear (61) and capable of stopping the double-axis motor (2) from rotating when the curtain body (11) is subjected to resistance.

5. A day and night curtain according to claim 4, characterized in that: The rope winding wheel (4) is a hollow cylindrical structure, the two ends of the rope winding wheel (4) are open structures respectively, and one end of the rope winding wheel (4) is closed by a wheel body end cover (42), the rope winding wheel quick release structure (7) includes a movable connecting shaft (71), one end of the movable connecting shaft (71) is axially movably arranged on the inner side of the wheel body end cover (42) and the other end is axially movably inserted into the inner side of the rope winding transmission gear (61), at least one limiting protrusion (421) is provided on the circumferential outer side of the wheel body end cover (42), the open end of the rope winding wheel (4) has a limiting notch (43) corresponding to the limiting protrusion (421), and the limiting protrusion (421) and the limiting notch (43) are connected to the rope winding transmission gear (61). The notch (43) is connected by snap-fitting, and the cross-section of the movable connecting shaft (71) is non-circular, and the center of the wheel body end cover (42) has a first movable channel (72) for inserting one end of the movable connecting shaft (71) and matching with the movable connecting shaft (71), and the center of the rope winding transmission gear (61) has a second movable channel (73) for inserting the other end of the movable connecting shaft (71) and matching with the movable connecting shaft (71), and the end of the rope winding transmission gear (61) away from the rope winding wheel (4) is provided with a quick-connect button assembly (74) located on the outside of the winding device (3) and capable of causing the movable connecting shaft (71) to be separated from the rope winding transmission gear (61) under the action of external force.

6. A day and night curtain according to claim 5, characterized in that: The end of the wheel end cover (42) away from the rope winding transmission gear (61) has a connecting shaft movable seat (422) coaxial with and integrally connected to the rope winding transmission gear (61), the first movable channel (72) is formed between the connecting shaft movable seat (422) and the wheel end cover (42), and one end of the movable connecting shaft (71) extends to the circumferential inner side of the connecting shaft movable seat (422), and a limiting component (75) capable of preventing the movable connecting shaft (71) from being separated from the first movable channel (72) is provided between the connecting shaft movable seat (422) and the movable connecting shaft (71), and the limiting component (75) includes a connecting shaft movable seat (422) and a connecting shaft movable seat (422) arranged on both sides of the connecting shaft movable seat (422). A limiting groove (751) is axially extended along the movable seat (422) of the connecting shaft, and both sides of one end of the movable connecting shaft (71) are respectively provided with strip holes (752), and the end of the strip hole (752) away from the rope winding transmission gear (61) is provided with an elastic limiting portion (753), and the elastic limiting portion (753) exceeds the strip hole (752) and extends into the limiting groove (751), and the elastic limiting portion (753) can abut against one end of the limiting groove (751), and a device is provided between the movable seat (422) of the connecting shaft and one end of the movable connecting shaft (71) to enable the other end of the movable connecting shaft (71) to maintain a plug-in state with the rope winding transmission gear (61). The elastic pressing assembly (76) includes a pressing spring (761) arranged in the connecting shaft movable seat (422), the end of the connecting shaft movable seat (422) away from the wheel body end cover (42) and the end of the movable connecting shaft (71) inserted in the second movable channel (73) are both in a closed state, one end of the pressing spring (761) acts on the inner side of the end of the connecting shaft movable seat (422) away from the wheel body end cover (42) and the other end acts on the inner side of the end of the movable connecting shaft (71) inserted in the second movable channel (73), the quick-connect button assembly (74) includes a spring (761) arranged at the end of the rope winding transmission gear (61) away from the rope winding A key movable hole (741) is provided at the center of one end of the wheel (4) and is connected to the second movable channel (73); a quick release key (742) is movably inserted into the key movable hole (741) and extends into the second movable channel (73) and abuts against the end of the movable connecting shaft (71); an anti-rotation structure (77) is provided between the quick release key (742) and the key movable hole (741); the anti-rotation structure (77) comprises a key limiting convex portion (771) arranged outside the quick release key (742); and a key anti-rotation limiting hole (772) is axially provided in the key movable hole (741) and is slidably connected to the key limiting convex portion (771).

7. The day-night curtain according to claim 4, characterized in that: The pull rope limiting structure (9) comprises a wire hook (91) arranged on the outside of one end of the rope winding wheel (4) and movably provided with an elastic swing mounting structure (10) to act on the pull rope (41); one end of the pull rope (41) is a fixed end (411) and the other end is a free end (412) passing through the outside of the winding device shell (31) and used to be connected to the curtain body (11); the fixed end (411) of the pull rope (41) is fixed to one end of the rope winding wheel (4); a limit sensor (92) is provided above the wire hook (91) and can contact the wire hook (91) when the curtain body (11) is blocked and the free end (412) of the pull rope (41) is loose; and a wire seat (93) is provided below the wire hook (91); and the wire seat (93) is provided with a A thread sleeve hole (931) for the free end (412) of the pull rope (41) to pass through, the free end (412) of the pull rope (41) passes through the thread sleeve hole (931) and passes through the thread hook (91) and the thread seat (93) in sequence, and is then arranged on the circumferential outer side of the rope winding wheel (4), and the thread hook (91) is arranged obliquely above the thread seat (93), a first pulley (911) is arranged on the thread hook (91), and a second pulley (912) located on one side of the thread sleeve hole (931) is arranged on one side of the upper end of the thread seat (93), and the first pulley (911) and the second pulley (912) are arranged in an upper and lower staggered manner, and the free end (412) of the pull rope (41) is arranged on the first pulley (911) and the second pulley (912) in sequence.

8. The day-night curtain according to claim 7, characterized in that: The elastic swing mounting structure (10) comprises a swing mounting assembly (101) arranged between the wire passing hook (91) and the winding device housing (31) and an elastic hook pressing assembly (102) arranged between the wire passing hook (91) and the winding device housing (31). The swing mounting assembly (101) comprises a hinged cylinder (1011) arranged at one end of the wire passing hook (91). Both ends of the hinged cylinder (1011) are respectively hingedly arranged at the winding device housing. The winding device (31) is provided with a hinge column (1012) on the inner side of the winding device (31), and the end of the wire-passing hook (91) away from the hinge cylinder (1011) is a swing end (1013), the first pulley (911) is arranged on the swing end (1013), and a swing limiting structure (103) is arranged between the swing end (1013) and the winding device housing (31), and the swing limiting structure (103) includes a swing end (1013) arranged on the wire-passing hook (91) The limiting columns (1031) on both sides are slidably arranged in the arc-shaped limiting grooves (1032) on the inner side of the winding device housing (31); the elastic hook pressing assembly (102) comprises a spring mounting cylinder (1021) arranged in the middle of the wire-passing hook (91); a hook pressing spring (1022) is arranged in the spring mounting cylinder (1021); the hook pressing spring (1022) is exposed from the spring mounting cylinder (1021) ) and acts on the hook top pressure seat (1023) on the inner side of the winding device housing (31), the limit sensor (92) is a contact switch, and the outer side of the hinged cylinder (1011) has a contact portion (104) corresponding to the limit sensor (92), and the upper end of the limit sensor (92) is provided with a sensor connection plug (105) located on the outer side of the winding device housing (31), and the sensor connection plug (105) is connected to the dual-axis motor (2).

9. The day-night curtain according to claim 4, characterized in that: The rope pulling anti-disorder structure (8) comprises a rope winding limit cover (81), the rope pulling (41) is movably arranged between the rope winding limit cover (81) and the rope winding wheel (4), the end of the rope winding wheel (4) away from the fixed end (411) is the rope winding end (44), the free end (412) of the rope pulling (41) is circumferentially arranged on the rope winding wheel (4) from the rope winding end (44), and a rope winding gap (82) is formed between the rope winding wheel (4) and the rope winding limit cover (81), and a winding guide structure (83) is provided on the inner side of one end of the rope winding limit cover (81) close to the rope winding end (44). The rope winding limit cover (81) is in the shape of an arc plate matching the outer side of the rope winding wheel (4), and the rope winding limit cover (81) extends from one end of the rope winding wheel (4) to the other end, the rope winding gap (82) is set to have an equal width, and the width of the rope winding gap (82) is not less than the diameter of the pull rope (41), and the winding guide structure (83) includes a winding guide rib (831) arranged on the inner side of one end of the rope winding limit cover (81) close to the rope winding end (44), and the winding guide rib (831) has a winding guide surface (832) on the side facing the fixed end (411) of the pull rope (41).

10. A day-night curtain according to claim 9, characterized in that: The winding guide rib (831) is arc-shaped and the winding guide surface (832) is an arc-shaped surface, the opening end of the winding guide rib (831) faces the end of the rope limit cover (81) close to the rope winding end (44), and the two ends of the winding guide rib (831) extend to both sides of the end of the rope limit cover (81) close to the rope winding end (44), and the winding guide rib (831) is integrally formed on the rope limit cover (81). The rope limit cover (81) is provided with a plurality of strip grooves (811) penetrating the rope limit cover (81) and extending axially in sequence, and the outer side of the rope limit cover (81) is provided with a plurality of limit cover clamping seats (812), and the limit cover clamping seats (812) are respectively and one by one vertically arranged on the edges of both sides of the rope limit cover (81), and the limit cover clamping seats (812) are connected with the rope limit cover (81) to form an integrated structure.

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