A dream curtain retraction and adjustment device

Abstract

The application discloses a dream curtain winding adjusting device, which comprises a mounting seat, a traction belt, a first winding curtain assembly, a second winding curtain assembly, a first transmission assembly, a first guide assembly, a spring and a pushing assembly, compared with the prior art. The first winding curtain assembly comprises a motor and a first rotating shaft; the first rotating shaft is used for connecting the curtain; the motor is used for driving the first rotating shaft to rotate; the second winding curtain assembly comprises a second rotating shaft, a second transmission assembly and a fixing block; the second rotating shaft is located at the top of the first rotating shaft; the second transmission assembly is arranged at one end of the second rotating shaft; the fixing block is arranged on the second rotating shaft; the first guide assembly is arranged on the second rotating shaft; the spring is arranged between the first guide assembly and the fixing block; the pushing assembly is used for pushing the second rotating shaft to move in the horizontal direction; and the traction belt is arranged on the second transmission assembly. The dream curtain winding adjusting device provided by the application supports manual and electric control of the winding of the curtain, and the efficiency of the winding of the dream curtain is high.

Description

Technical Field

[0001] The present application relates to the field of curtain adjustment, and more specifically, to a dream curtain retraction and adjustment device. Background Art

[0002] Curtains are an indispensable part of human living space applications and are of great significance. On the one hand, curtains can achieve colorful decorative effects in the living space. On the other hand, curtains can also achieve different light transmission effects, which can achieve the dual purpose of blocking solar radiation from entering the room and adjusting the indoor lighting.

[0003] Existing dream curtains mostly use a single manual adjustment control method for rolling up. When the curtains are rolled up by manual adjustment control, the pull beads are easily stuck or even disconnected due to the influence of the size and uniformity of the human pulling force, which affects the use of the curtains and the efficiency of rolling up the dream curtains.

[0004] Therefore, how to improve the efficiency of rolling up the dream curtain has become a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] In order to solve the above technical problems, the present application provides a dream curtain retraction adjustment device, which can improve the efficiency of retraction of the dream curtain.

[0006] The technical solutions provided in this application are as follows:

[0007] The application provides a dream curtain winding adjusting device, which comprises a mounting seat, a traction belt, a first roller assembly, a second roller assembly, a first transmission assembly, a first guide assembly, a spring and a pushing assembly. The first roller assembly is arranged at one end of the mounting seat. The first roller assembly comprises a motor and a first rotating shaft. The first rotating shaft is arranged in the mounting seat and is used for connecting a curtain. The motor is connected with one end of the first rotating shaft and is used for driving the first rotating shaft to rotate. The first transmission assembly is arranged at the other end of the first rotating shaft away from the motor. The second roller assembly is arranged at the other end of the mounting seat away from the first roller assembly. The second roller assembly comprises a second rotating shaft, a second transmission assembly and a fixed block. The second rotating shaft is arranged in the mounting seat and is located at the top of the first rotating shaft. The second transmission assembly is arranged opposite to the first transmission assembly and is located at one end of the second rotating shaft close to the first transmission assembly. The fixed block is arranged on the second rotating shaft and is connected with the second transmission assembly. The first guide assembly is arranged on the second rotating shaft. The spring is arranged between the first guide assembly and the fixed block. The pushing assembly is used for pushing the second rotating shaft to move along the first guide assembly in the horizontal direction. The traction belt is arranged on the second transmission assembly.

[0008] Further, in a preferred mode of the application, the first transmission assembly comprises a first ring and a first protruding structure. The first ring is fixedly arranged on the first rotating shaft. The first protruding structure is arranged on the outer surface of the first ring.

[0009] Further, in a preferred mode of the application, the first transmission assembly and the second transmission assembly are the same in structure and size.

[0010] Further, in a preferred mode of the application, the spring has a balance state and a stretched state. When the contact surfaces of the first transmission assembly and the second transmission assembly completely coincide, the spring is in the balance state. When the contact surfaces of the first transmission assembly and the second transmission assembly partially coincide or the contact area is 0, the spring is in the stretched state.

[0011] Further, in a preferred mode of the application, the motor is used for running when the contact area of the first transmission assembly and the second transmission assembly is 0, so as to drive the first rotating shaft to rotate.

[0012] Further, in a preferred mode of the application, the first guide assembly comprises a first guide cylinder and a first connecting rod. The first guide cylinder is arranged on the second rotating shaft. The first connecting rod is used for connecting the first guide cylinder and the mounting seat.

[0013] Furthermore, in a preferred embodiment of the present application, it also includes: a second guide assembly, the second guide assembly includes: a second guide cylinder, a second connecting rod and a third connecting rod; the third connecting rod is fixedly arranged in the mounting seat; the second guide cylinder is arranged on the third connecting rod; the second connecting rod connects the second guide cylinder and the fixed block.

[0014] Furthermore, in a preferred embodiment of the present application, the first connecting rod is fixedly connected to the third connecting rod.

[0015] Furthermore, in a preferred embodiment of the present application, it further includes: a first limit block; the first limit block is arranged at one end of the third connecting rod close to the first transmission assembly.

[0016] Furthermore, in a preferred embodiment of the present application, the pushing assembly includes: a hydraulic cylinder and a connecting piece; the connecting piece is fixedly connected to the mounting seat; and the hydraulic cylinder is connected to the connecting piece.

[0017] and a first guide shaft, a second guide shaft, a second guide shaft, a first guide shaft, a second guide shaft and a second guide shaft. and a second guide assembly connected to the second rotating shaft; the first guide assembly is arranged on the second rotating shaft; the spring is arranged between the first guide assembly and the fixed block; the pushing assembly is used to push the second rotating shaft to move in the horizontal direction along the first guide assembly; the traction belt is arranged on the second transmission assembly, so that the motor drives the first rotating shaft to rotate, which can drive the curtain connected to the first rotating shaft to be retracted, and the pushing assembly can push the second rotating shaft to move along the first guide assembly. When the second rotating shaft moves to the point where the second transmission assembly contacts the first transmission assembly, the traction belt drives the second transmission assembly, and the second transmission assembly drives the first transmission assembly to rotate, thereby driving the first rotating shaft to retract the curtain. Compared with a single manual adjustment method for controlling the retraction of the dream curtain, the dream curtain retraction adjustment device provided in this application supports both manual and electric methods to control the retraction of the curtain, thereby improving the efficiency of the retraction of the dream curtain, and the traction belt in this application has higher strength and longer service life than the pull beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is an overall schematic diagram of the dream curtain retraction and adjustment device provided in an embodiment of the present application;

[0020] Figure 2A schematic structural diagram of a spring in a stretched state of a retracting and adjusting device for a dream curtain provided by an embodiment of the present application;

[0021] Figure 3 A schematic structural diagram of a first transmission assembly of a dream curtain retracting and adjusting device provided in an embodiment of the present application;

[0022] Figure 4 This is a structural schematic diagram of the spring of the dream curtain retracting and adjusting device provided in an embodiment of the present application in a balanced state.

[0023] In the figure: 1. Mounting seat; 2. Traction belt; 3. First transmission assembly; 4. Spring; 5. Pushing assembly; 6. Motor; 7. First rotating shaft; 8. Second rotating shaft; 9. Second transmission assembly; 10. Fixed block; 11. First ring; 12. First protruding structure; 13. Housing; 14. Mounting cavity; 15. Controller; 16. First guide cylinder; 17. First connecting rod; 18. Second guide cylinder; 19. Second connecting rod; 20. Third connecting rod; 21. First limit block; 22. Hydraulic cylinder; 23. Connecting piece; 24. Second limit block. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0025] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0028] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to illustrate the disclosed contents for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0029] Please Figures 1-4 As shown, the present application provides a dream curtain rolling and adjusting device, comprising: a mounting seat 1, a traction belt 2, a first rolling curtain assembly, a second rolling curtain assembly, a first transmission assembly 3, a first guide assembly, a spring 4 and a pushing assembly 5; the first rolling curtain assembly is arranged at one end of the mounting seat 1, and the first rolling curtain assembly comprises: a motor 6 and a first rotating shaft 7; the first rotating shaft 7 is arranged in the mounting seat 1, and the first rotating shaft 7 is used to connect the curtain; the motor 6 is connected to one end of the first rotating shaft 7, and the motor 6 is used to drive the first rotating shaft 7 to rotate; the first transmission assembly 3 is arranged at the other end of the first rotating shaft 7 away from the motor 6; the second rolling curtain assembly is arranged at the other end of the mounting seat 1 away from the first rolling curtain assembly, and the second rolling curtain assembly includes It includes: a second rotating shaft 8, a second transmission assembly 9 and a fixed block 10; the second rotating shaft 8 is arranged in the mounting seat 1, and the second rotating shaft 8 is located at the top of the first rotating shaft 7; the second transmission assembly 9 is arranged opposite to the first transmission assembly 3, and the second transmission assembly 9 is located at one end of the second rotating shaft 8 close to the first transmission assembly 3; the fixed block 10 is arranged on the second rotating shaft 8, and the fixed block 10 is connected to the second transmission assembly 9; the first guide assembly is arranged on the second rotating shaft 8; the spring 4 is arranged between the first guide assembly and the fixed block 10; the pushing assembly 5 is used to push the second rotating shaft 8 to move in the horizontal direction along the first guide assembly; the traction belt 2 is arranged on the second transmission assembly 9.

[0030] Based on the above structure, during the operation of the dream curtain winding and adjusting device, the motor 6 drives the first shaft 7 to rotate, which can drive the curtain connected to the first shaft 7 to be wound up, and the pushing component 5 can push the second shaft 8 to move along the first guide component. When the second shaft 8 moves to the second transmission component 9 and contacts the first transmission component 3, the traction belt 2 is pulled to drive the second transmission component 9, and the second transmission component 9 drives the first transmission component 3 to rotate, thereby driving the first shaft 7 to wind up the curtain. Compared with the single manual adjustment method to control the winding of the dream curtain, the dream curtain winding and adjusting device provided in this application supports both manual and electric methods to control the winding of the curtain, thereby improving the efficiency of the winding of the dream curtain, and the traction belt 2 in this application is higher in strength and longer in service life than the pull beads.

[0031] It should be supplemented that, in the embodiment of the present application, the mounting base 1 includes: a shell 13 and a mounting cavity 14;

[0032] The housing 13 is provided with a mounting hole;

[0033] The mounting cavity 14 is disposed in the housing 13 .

[0034] To be more specific, the first rolling curtain assembly, the second rolling curtain assembly and the first transmission assembly 3 are all disposed in the installation cavity 14 .

[0035] It should be further explained that, in the embodiment of the present application, an opening structure is provided at the bottom of the shell 13, and the opening structure provides a channel for the up and down movement of the curtain connected to the first rotating shaft 7.

[0036] To be more specific, the first rotating shaft 7 is connected to the curtain. The first rotating shaft 7 rotates counterclockwise to roll up the curtain to increase the brightness, and the first rotating shaft 7 rotates clockwise to lower the curtain to reduce the brightness.

[0037] Specifically, in the embodiment of the present application, the first transmission assembly 3 includes: a first ring 11 and a first protruding structure 12;

[0038] The first ring 11 is fixedly mounted on the first rotating shaft 7;

[0039] The first protrusion structure 12 is disposed on the outer surface of the first ring 11 .

[0040] To be more specific, the first protruding structures 12 are evenly distributed on the outer surface of the first circular ring 11 around the center of the first circular ring 11 .

[0041] Specifically, in the embodiment of the present application, the first transmission assembly 3 and the second transmission assembly 9 are of the same structure and size, so that the contact surfaces of the first transmission assembly 3 and the second transmission assembly 9 can completely coincide.

[0042] More specifically, the second transmission assembly 9 comprises a second ring and a second protruding structure.

[0043] The second ring is fixedly arranged on the second rotating shaft 8.

[0044] The second protruding structure is uniformly arranged on the outer surface of the second ring around the center of the second ring.

[0045] Specifically, in the embodiment of the present application, the spring 4 has a balanced state and a stretched state.

[0046] When the contact surfaces of the first transmission assembly 3 and the second transmission assembly 9 completely coincide, the spring 4 is in the balanced state.

[0047] When the contact surfaces of the first transmission assembly 3 and the second transmission assembly 9 partially coincide or the contact area is 0, the spring 4 is in the stretched state.

[0048] More specifically, when the contact surfaces of the first transmission assembly 3 and the second transmission assembly 9 completely coincide, the second protruding structure is between two adjacent first protruding structures 12, and the contact surfaces of the second protruding structure and the first protruding structures 12 completely coincide. The rotation of the first transmission assembly 3 can drive the second transmission assembly 9 to rotate, and the rotation of the second transmission assembly 9 can drive the first transmission assembly 3 to rotate.

[0049] It should be noted that, in the embodiment of the present application, the size of the fixed block 10 is smaller than that of the second transmission assembly 9.

[0050] More specifically, when the contact surfaces of the first transmission assembly 3 and the second transmission assembly 9 partially coincide or the contact area is 0, the contact area of the fixed block 10 and the first transmission assembly 3 is 0.

[0051] Specifically, in the embodiment of the present application, the motor 6 is used to operate when the contact area of the first transmission assembly 3 and the second transmission assembly 9 is 0, so as to drive the first rotating shaft 7 to rotate.

[0052] To be more specific, when the spring 4 is in a stretched state when the contact area between the first transmission component 3 and the second transmission component 9 is 0, the contact between the first transmission component 3 and the second transmission component 9 can be avoided, so that when the motor 6 drives the first rotating shaft 7 to rotate, the first transmission component 3 and the second transmission component 9 do not interfere with each other, that is, when the motor 6 drives the first rotating shaft 7 to retract the curtain, the second rotating shaft 8 will not be driven, and the traction belt 2 will not be driven, which can reduce safety hazards.

[0053] It should be noted that, in the embodiment of the present application, the system further includes: a controller 15;

[0054] The controller 15 is connected to the motor 6 and the pushing component 5 , and the controller 15 is used to control the operation of the motor 6 and the pushing component 5 .

[0055] More specifically, the controller 15 is used to control the rotation direction and rotation speed of the motor 6 .

[0056] To be more specific, the controller 15 is also used to control the pushing distance and horizontal moving direction of the pushing component 5 .

[0057] To be more specific, the controller 15 is configured to control the motor 6 to operate when the contact area between the first transmission assembly 3 and the second transmission assembly 9 is zero.

[0058] Specifically, in the embodiment of the present application, the first guide assembly includes: a first guide cylinder 16 and a first connecting rod 17;

[0059] The first guide cylinder 16 is disposed on the second rotating shaft 8;

[0060] The first connecting rod 17 is used to connect the first guide cylinder 16 and the mounting seat 1 .

[0061] To be more specific, the first guide cylinder 16 is sleeved on the second rotating shaft 8 , the pushing assembly 5 is located at the other end of the second rotating shaft 8 away from the second transmission assembly 9 , and the first guide cylinder 16 is fixedly connected to the housing 13 through the first connecting rod 17 .

[0062] To be more specific, when the pushing component 5 pushes the second rotating shaft 8 to move toward the second transmission component 9, the spring 4 is in a stretched state, and when no interaction force is generated between the pushing component 5 and the second rotating shaft 8, the spring 4 is in a balanced state.

[0063] Specifically, in the embodiment of the present application, it further includes: a second guide assembly, which includes: a second guide cylinder 18, a second connecting rod 19 and a third connecting rod 20;

[0064] The third connecting rod 20 is fixedly disposed in the mounting seat 1;

[0065] The second guide cylinder 18 is disposed on the third connecting rod 20;

[0066] The second connecting rod 19 connects the second guide cylinder 18 and the fixing block 10 .

[0067] To be more specific, when the pushing component 5 pushes the second rotating shaft 8 to move toward the second transmission component 9, the second rotating shaft 8 moves along the first guide cylinder 16 toward the second transmission component 9, and at the same time, the second guide cylinder 18 moves along the third connecting rod 20 toward the second transmission component 9.

[0068] To be more specific, the contact area between the first transmission component 3 and the second transmission component 9 is 0. Pulling the traction belt 2 can drive the second transmission component 9 and the second rotating shaft 8 to rotate. The rotation of the second transmission component 9 can drive the first transmission component 3 to rotate, thereby driving the first rotating shaft 7 connected to the first transmission component 3 to rotate, so that the curtain can be manually pulled by pulling the traction belt 2.

[0069] Specifically, in the embodiment of the present application, the first connecting rod 17 is fixedly connected to the third connecting rod 20 .

[0070] To be more specific, the third connecting rod 20 is fixedly arranged in the shell 13, and the first guide cylinder 16 is fixedly connected to the shell 13 through the first connecting rod 17, which can limit the up and down movement of the second rotating shaft 8. The second rotating shaft 8 can rotate in the fixed block 10 and the first guide cylinder 16, and the fixed block 10 is fixedly connected to the second guide cylinder 18 through the second connecting rod 19, so that when the traction belt 2 is manually pulled to retract the curtain, the rotation of the second rotating shaft 8 is more stable.

[0071] Specifically, in the embodiment of the present application, it further includes: a first limiting block 21;

[0072] The first limiting block 21 is disposed at one end of the third connecting rod 20 close to the first transmission assembly 3 .

[0073] To be more specific, the first limiting block 21 and the first connecting rod 17 are used to limit the horizontal displacement of the second guide cylinder 18 .

[0074] It should be supplemented that, in the embodiment of the present application, it further includes: a second limiting block 24;

[0075] The second limiting block 24 is disposed at one end of the second rotating shaft 8 close to the pushing assembly 5 . The second limiting block 24 is used to limit the horizontal displacement of the first guide cylinder 16 .

[0076] Specifically, in the embodiment of the present application, the pushing assembly 5 includes: a hydraulic cylinder 22 and a connecting member 23;

[0077] The connecting member 23 is fixedly connected to the mounting base 1;

[0078] The hydraulic cylinder 22 is connected to the connecting member 23 .

[0079] To be more specific, the connecting member 23 is fixedly connected to the housing 13 , and the controller 15 is used to control the telescopic length of the hydraulic cylinder 22 .

[0080] The specific operating steps or working principle of the dream curtain retraction and adjustment device provided in this application are as follows:

[0081] The rotation of the motor 6 can drive the rotation of the first rotating shaft 7, thereby driving the curtain on the first rotating shaft 7 to move up and down in the opening structure. The counterclockwise rotation of the first rotating shaft 7 is used to roll up the curtain to increase the brightness, and the clockwise rotation of the first rotating shaft 7 is used to lower the curtain to reduce the brightness. The hydraulic cylinder 22 can push the second rotating shaft 8 to move along the first guide cylinder 16 toward the direction close to the second transmission assembly 9, thereby adjusting the contact area between the first transmission assembly 3 and the second transmission assembly 9. When the contact area between the first transmission assembly 3 and the second transmission assembly 9 is 0, pulling the traction belt 2 can drive the second transmission assembly 9 and the second rotating shaft 8 to rotate. The rotation of the second transmission assembly 9 can drive the first transmission assembly 3 to rotate, thereby driving the curtain connected to the first transmission assembly 3 The first rotating shaft 7 rotates, so that the traction belt 2 can be manually pulled to retract the curtain, and the controller 15 is used to control the motor 6 to operate when the contact area between the first transmission component 3 and the second transmission component 9 is 0, that is, when the motor 6 drives the first rotating shaft 7 to rotate, the first transmission component 3 and the second transmission component 9 do not interfere with each other, that is, when the motor 6 drives the first rotating shaft 7 to retract the curtain, the second rotating shaft 8 will not be driven, and the traction belt 2 will not be driven, which can reduce safety hazards. In addition, the traction belt 2 in this application is stronger and has a longer service life than the pull beads. Compared with the single manual adjustment method of controlling the retraction of the dream curtain, the dream curtain retraction adjustment device provided by this application supports both manual and electric methods to control the retraction of the curtain, thereby improving the efficiency of the retraction of the dream curtain.

[0082] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dream curtain retraction and adjustment device, characterized in that: include: A mounting seat, a traction belt, a first rolling curtain assembly, a second rolling curtain assembly, a first transmission assembly, a first guide assembly, a spring, and a pushing assembly; The first rolling curtain assembly is arranged at one end of the mounting base, and the first rolling curtain assembly includes: a motor and a first rotating shaft; The first rotating shaft is disposed in the mounting seat, and the first rotating shaft is used to connect the curtain; The motor is connected to one end of the first rotating shaft, and the motor is used to drive the first rotating shaft to rotate; The first transmission assembly is arranged at the other end of the first rotating shaft away from the motor; The second rolling curtain assembly is arranged at the other end of the mounting base away from the first rolling curtain assembly, and the second rolling curtain assembly includes: a second rotating shaft, a second transmission assembly and a fixing block; The second rotating shaft is disposed in the mounting seat, and the second rotating shaft is located on top of the first rotating shaft; The second transmission assembly is arranged opposite to the first transmission assembly, and the second transmission assembly is located at an end of the second rotating shaft close to the first transmission assembly; The fixing block is arranged on the second rotating shaft, and the fixing block is connected to the second transmission assembly; The first guide assembly is arranged on the second rotating shaft; The spring is arranged between the first guide assembly and the fixing block; The pushing assembly is used to push the second rotating shaft to move in the horizontal direction along the first guide assembly; The traction belt is arranged on the second transmission assembly; The first guide assembly includes: a first guide cylinder and a first connecting rod; The first guide cylinder is arranged on the second rotating shaft; The first connecting rod is used to connect the first guide cylinder and the mounting seat; Also included: a second guide assembly, the second guide assembly including: a second guide cylinder, a second connecting rod and a third connecting rod; The third connecting rod is fixedly disposed in the mounting seat; The second guide cylinder is arranged on the third connecting rod; The second connecting rod connects the second guide cylinder and the fixing block; The first connecting rod is fixedly connected to the third connecting rod; Also includes: a first limiting block; The first limiting block is provided at one end of the third connecting rod close to the first transmission assembly; The pushing assembly includes: a hydraulic cylinder and a connecting piece; The connecting member is fixedly connected to the mounting seat; The hydraulic cylinder is connected to the connecting member.

2. The dream curtain retraction and adjustment device according to claim 1, characterized in that: The first transmission assembly includes: a first ring and a first protruding structure; The first ring is fixedly arranged on the first rotating shaft; The first protrusion structure is arranged on the outer surface of the first ring.

3. The dream curtain retraction and adjustment device according to claim 1, characterized in that: The first transmission assembly and the second transmission assembly have the same structure and size.

4. The dream curtain retraction and adjustment device according to claim 3, characterized in that: The spring has a balanced state and a stretched state; When the contact surfaces of the first transmission assembly and the second transmission assembly completely overlap, the spring is in a balanced state; When the contact surfaces of the first transmission assembly and the second transmission assembly partially overlap or the contact area is zero, the spring is in a stretched state.

5. The dream curtain retraction and adjustment device according to claim 4, characterized in that: The motor is configured to operate when the contact area between the first transmission assembly and the second transmission assembly is zero, so as to drive the first rotating shaft to rotate.

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