A roller blind system

Abstract

This invention discloses a roller blind system, relating to the field of roller blinds. It includes a drive assembly and a roller blind assembly. The drive assembly includes a first drive member and a second drive member, both with identical structures. Each drive member includes a drive shaft, a first limiting ring, a second limiting ring, a third limiting ring, and a belt ring. The drive shaft is fixedly connected to the first limiting ring and slidably connected to the second and third limiting rings. The second limiting ring is fixedly connected to the third limiting ring. The sides of the first and second limiting rings that are close to each other are tapered. By adaptively adjusting the rotational speed of the drive shafts on the first and second drive members, the linear speeds of the drive shafts of both drive members are the same when winding and unwinding the curtain, ensuring synchronicity during winding and unwinding, making the winding and unwinding of the curtain more precise, and avoiding asynchrony.

Description

Technical Field

[0001] This invention relates to the field of roller blinds, and in particular to a roller blind system. Background Technology

[0002] Windows, as an important component for indoor lighting, are indispensable in modern housing construction. Curtains or roller blinds are generally installed on windows for purposes such as shading or blocking wind. Roller blinds typically consist of a roller assembly at each end of the curtain and a base plate assembly. The roller assembly includes a drum for winding the curtain, the curtain itself, and end caps, while the base plate assembly is fixed to the other end of the curtain.

[0003] In related technologies, during the gradual winding of the curtain fabric, the amount of curtain fabric wound on the top roller increases during winding, while the amount of curtain fabric wound on the bottom roller decreases due to unwinding. The top and bottom rollers are of different thicknesses, resulting in asynchrony between the winding and unwinding of the top and bottom rollers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that during the gradual winding of the curtain fabric, the amount of curtain fabric wound on the top roller increases during winding, while the amount of curtain fabric wound on the bottom roller decreases due to unwinding. The top roller and the bottom roller have different thicknesses, resulting in a lack of synchronization between the winding and unwinding of the top roller and the bottom roller.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a roller blind system, comprising a drive assembly and a roller blind assembly. The drive assembly includes a first drive member and a second drive member, which have the same structure. The first and second drive members each include a drive shaft, a first limiting ring, a second limiting ring, a third limiting ring, and a belt ring. The drive shaft is fixedly connected to the first limiting ring and slidably connected to the second and third limiting rings. The second limiting ring is fixedly connected to the third limiting ring. The first and second limiting rings are tapered on their adjacent sides. A belt ring is provided between the first and second limiting rings. The roller blind assembly includes a winding belt, a traction belt, and a curtain surface. One end of the winding belt is fixedly connected to the drive shaft on the first drive member, and the other end of the winding belt is fixedly connected to the drive shaft on the second drive member. Both ends of the curtain surface are fixedly connected to the traction belts, one of which is fixedly connected to the drive shaft on the first drive member, and the other traction belt is fixedly connected to the drive shaft on the second drive member.

[0006] In a preferred embodiment of the roller shutter system of the present invention, the first driving member and the second driving member further include a fixed housing, and the two ends of the driving shaft are respectively rotatably connected to the fixed housing.

[0007] In a preferred embodiment of the roller shutter system of the present invention, the driving component further includes a control component, which includes a movable block and a lead screw. The third limiting ring is provided with a conical structure. The movable block is provided with an inclined surface on the side near the third limiting ring. The movable block is slidably connected to the inner wall of the fixed shell. The movable block is threadedly connected to one end of the lead screw, and the other end of the lead screw is rotatably connected to the fixed shell.

[0008] In a preferred embodiment of the roller shutter system of the present invention, the movable block is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to a fixing strip, and the fixing strip is fixedly connected to the inner wall of the fixing shell.

[0009] In a preferred embodiment of the roller shutter system of the present invention, the first driving member and the second driving member further include an adjusting member, which includes a roller, a mounting base, a spring, a first telescopic rod, a connecting pipe, a second telescopic rod, a toothed plate, a first gear, and a second gear. The roller is located on one side of the winding belt and is in contact with the winding belt. The roller is rotatably connected to the mounting base. The mounting base is fixedly connected to one end of the first telescopic rod. The other end of the first telescopic rod is fixedly connected to the inner wall of the fixing shell. The first telescopic rod is connected to the second telescopic rod through the connecting pipe. The second telescopic rod is fixedly connected to the inner wall of the fixing shell. The end of the second telescopic rod is fixedly connected to the toothed plate. The toothed plate meshes with the first gear. The first gear meshes with the second gear. The second gear is fixedly connected to the lead screw.

[0010] The spring is sleeved on the first telescopic rod, and the spring is used to push the mounting base to move under the action of elastic force.

[0011] In a preferred embodiment of the roller shutter system of the present invention, the first gear is rotatably connected to the fixed shaft, and the fixed shaft is fixedly connected to the inner wall of the fixed shell.

[0012] In a preferred embodiment of the roller blind system of the present invention, the drive shaft is provided with a groove, and the winding belt and the traction belt are fixedly connected to the inner wall of the groove.

[0013] In a preferred embodiment of the roller blind system of the present invention, the winding belt, the traction belt, and the curtain surface have the same thickness.

[0014] As a preferred embodiment of the roller shutter system of the present invention, it further includes a power component, which includes an electric motor, a third gear and a fourth gear. The electric motor is fixedly connected to the inner wall of the fixed housing on the first driving member, the electric motor is fixedly connected to the third gear, the third gear meshes with the fourth gear, and the fourth gear is fixedly connected to the drive shaft on the first driving member.

[0015] In a preferred embodiment of the roller blind system of the present invention, the fixing shell is provided with an opening, and the winding belt, the traction belt and the curtain pass through the opening.

[0016] The beneficial effects of the present invention are as follows: The present invention adaptively adjusts the rotational speed of the drive shafts on the first and second drive components, so that the drive shafts of the first and second drive components rotate at the same linear speed when winding and unwinding the curtain, ensuring the synchronicity of winding and unwinding the curtain, making the winding and unwinding of the curtain more precise, and avoiding asynchronous situations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the driving component structure in an embodiment of this disclosure.

[0018] Figure 2 This is a schematic diagram of the structure of the first driving component in an embodiment of this disclosure.

[0019] Figure 3 This is a schematic diagram of the overall structure in an embodiment of this disclosure.

[0020] Figure 4 For the embodiments of this disclosure Figure 3 Enlarged diagram of point A in the middle.

[0021] Figure 5 For the embodiments of this disclosure Figure 2 Enlarged diagram of point B in the middle.

[0022] Figure 6 This is a schematic diagram of the drive shaft structure in an embodiment of this disclosure.

[0023] Reference numerals: Drive assembly 1, first drive member 11, second drive member 12, drive shaft 111, groove 1111, first limiting ring 112, second limiting ring 113, third limiting ring 114, belt ring 115, fixed shell 116, opening 1161, adjusting member 117, roller 1171, mounting base 1172, spring 1173, first telescopic rod 1174, connecting pipe 1175, second telescopic rod 1176, toothed plate 1177, first gear 1178, fixed shaft 11781, second gear 1179, control member 13, movable block 131, inclined surface 1311, slide groove 1312, fixing strip 1313, lead screw 132, roller blind assembly 2, winding belt 21, traction belt 22, curtain surface 23, power assembly 3, electric motor 31, third gear 32, fourth gear 33. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Example

[0025] Reference Figure 1 and Figure 2This embodiment provides a roller blind system, including a drive assembly 1 and a roller blind assembly 2. The drive assembly 1 includes a first drive member 11 and a second drive member 12. The first drive member 11 and the second drive member 12 have the same structure. The first drive member 11 and the second drive member 12 respectively include a drive shaft 111, a first limiting ring 112, a second limiting ring 113, a third limiting ring 114, and a belt ring 115. The drive shaft 111 is fixedly connected to the first limiting ring 112, and the drive shaft 111 is slidably connected to the second limiting ring 113 and the third limiting ring 114. The second limiting ring 113 is fixedly connected to the third limiting ring 114. The first limiting ring 112 and the second limiting ring 113 are tapered on their adjacent sides, and a belt ring 115 is provided between the first limiting ring 112 and the second limiting ring 113.

[0026] In this preferred embodiment, when the drive shaft 111 on the first drive member 11 rotates, it drives the belt ring 115 to rotate through the first limiting ring 112 and the second limiting ring 113. The belt ring 115 drives the drive shaft 111 on the second drive member 12 to rotate through the first limiting ring 112 and the second limiting ring 113 on the second drive member 12. The first limiting ring 112 and the second limiting ring 113 are tapered on their closer sides. When the distance between the first limiting ring 112 and the second limiting ring 113 increases, the belt ring 115 moves closer to the axis of the drive shaft 111. When the distance between the first limiting ring 112 and the second limiting ring 113 decreases, the belt ring 115 moves away from the axis of the drive shaft 111.

[0027] The roller blind assembly 2 includes a winding belt 21, a traction belt 22, and a curtain surface 23. One end of the winding belt 21 is fixedly connected to a drive shaft 111 on a first drive member 11, and the other end of the winding belt 21 is fixedly connected to a drive shaft 111 on a second drive member 12. Both ends of the curtain surface 23 are fixedly connected to the traction belts 22, one of which is fixedly connected to the drive shaft 111 on the first drive member 11, and the other is fixedly connected to the drive shaft 111 on the second drive member 12. When the drive shaft 111 rotates, it can drive the winding belt 21 and the traction belt 22 to move. When the traction belt 22 moves, it can drive the curtain surface 23 to move.

[0028] In this preferred embodiment, during winding, the drive shaft 111 of the first drive member 11 rotates, driving the belt ring 115 to rotate via the first limiting ring 112 and the second limiting ring 113. The belt ring 115, through the first limiting ring 112 and the second limiting ring 113 of the second drive member 12, drives the drive shaft 111 of the second drive member 12 to rotate, winding the curtain fabric 23 wound on the drive shaft 111 of the second drive member 12 onto the drive shaft 111 of the first drive member 11. At this time, the curtain fabric 23 wound on the drive shaft 111 of the first drive member 11 becomes thicker and thicker, controlling the first drive member 11 to rotate. The second limiting ring 113 of the first driving member 11 moves closer to the first limiting ring 112, and the distance between the first limiting ring 112 and the second limiting ring 113 becomes smaller. The belt ring 115 moves away from the axis of the drive shaft 111. The position of the belt ring 115 on the first limiting ring 112 and the second limiting ring 113 is the same as the diameter of the curtain 23 wound on the drive shaft 111 of the first driving member 11. This ensures that the moving speed of the belt ring 115 on the drive shaft 111 of the first driving member 11 is the same as the linear speed of the winding of the curtain 23, and the rotational speed of the drive shaft 111 of the first driving member 11 is adaptively adjusted.

[0029] Simultaneously, as the curtain 23 wound on the drive shaft 111 of the second drive member 12 is unwound, it gradually decreases in quantity and becomes thinner. This controls the second limiting ring 113 of the second drive member 12 to move away from the first limiting ring 112, increasing the distance between the first limiting ring 112 and the second limiting ring 113. The belt ring 115 then approaches the axis of the drive shaft 111. The position of the belt ring 115 relative to the position of the curtain 23 wound on the drive shaft 111 of the second drive member 12... With the same diameter, the moving speed of the belt ring 115 on the drive shaft 111 of the second drive member 12 is the same as the linear speed of the unwinding of the curtain 23. The rotational speed of the drive shaft 111 of the second drive member 12 is adaptively adjusted so that the rotational linear speed of the drive shafts 111 of the first drive member 11 and the second drive member 12 is the same when winding and unwinding the curtain 23. This ensures the synchronization of winding and unwinding the curtain 23, making the winding and unwinding of the curtain 23 more precise and avoiding asynchrony. Example

[0030] Reference Figures 1 to 6 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that...

[0031] The first driving member 11 and the second driving member 12 also include a fixed housing 116, and the two ends of the driving shaft 111 are respectively rotatably connected to the fixed housing 116.

[0032] Preferably, in this embodiment, there are two fixing shells 116, which are installed at the top and bottom of the windowsill respectively to fix the position of the drive shaft 111. The first drive member 11 is located in the fixing shell 116 at the top of the windowsill, and the second drive member 12 is located in the fixing shell 116 at the bottom of the windowsill.

[0033] When the drive shaft 111 rotates, it can drive the winding belt 21 and the traction belt 22 to move. When the traction belt 22 moves, it can drive the curtain 23 to move. By pulling the upper and lower ends of the curtain 23, the curtain 23 can be prevented from being blown by the wind, thus enhancing the wind resistance of the curtain 23.

[0034] When the curtain 23 is rolled up onto the drive shaft 111 on the second drive member 12, the drive shaft 111 on the first drive member 11 rotates to roll up the curtain 23. At this time, the drive shaft 111 of the second drive member 12 gradually unrolls the curtain 23. The curtain 23 moves from bottom to top, which can block the sunlight below. Unlike the curtain 23 of the prior art, which can only block from top to bottom, it is more flexible and convenient to use.

[0035] Reference Figure 2 The drive assembly 1 also includes a control component 13, which includes a movable block 131 and a lead screw 132. The third limiting ring 114 is provided with a conical structure. The movable block 131 is provided with an inclined surface 1311 on the side near the third limiting ring 114. The movable block 131 is slidably connected to the inner wall of the fixed shell 116. The movable block 131 is threadedly connected to one end of the lead screw 132, and the other end of the lead screw 132 is rotatably connected to the fixed shell 116.

[0036] In this preferred embodiment, when the lead screw 132 rotates, it can drive the movable block 131 to move up and down under the action of the thread. Under the action of the inclined surface 1311, the movable block 131 can push the third limiting ring 114 to move. The third limiting ring 114 drives the second limiting ring 113 to move closer to or away from the first limiting ring 112.

[0037] Reference Figure 2 and Figure 3 The movable block 131 is provided with a sliding groove 1312, and the inner wall of the sliding groove 1312 is slidably connected to a fixing strip 1313, which is fixedly connected to the inner wall of the fixing shell 116.

[0038] In this embodiment, preferably, when the movable block 131 moves, the sliding groove 1312 on the movable block 131 moves on the fixed strip 1313, which helps to improve the stability of the movable block 131 when it moves.

[0039] Reference Figure 3 and Figure 5The first driving member 11 and the second driving member 12 further include an adjusting member 117. The adjusting member 117 includes a roller 1171, a mounting base 1172, a spring 1173, a first telescopic rod 1174, a connecting pipe 1175, a second telescopic rod 1176, a toothed plate 1177, a first gear 1178, and a second gear 1179. The roller 1171 is located on one side of the winding tape 21 and is in contact with the winding tape 21. The roller 1171 is rotatably connected to the mounting base 1172. 2. One end of the first telescopic rod 1174 is fixedly connected, and the other end of the first telescopic rod 1174 is fixedly connected to the inner wall of the fixed shell 116. The first telescopic rod 1174 is connected to the second telescopic rod 1176 through the connecting pipe 1175. The second telescopic rod 1176 is fixedly connected to the inner wall of the fixed shell 116. The end of the second telescopic rod 1176 is fixedly connected to the toothed plate 1177. The toothed plate 1177 meshes with the first gear 1178. The first gear 1178 meshes with the second gear 1179. The second gear 1179 is fixedly connected to the lead screw 132.

[0040] The spring 1173 is sleeved on the first telescopic rod 1174, and the spring 1173 is used to push the mounting base 1172 to move under the action of elastic force.

[0041] In this preferred embodiment, under the action of the spring 1173, the mounting base 1172 is pushed to move. The mounting base 1172 drives the roller 1171 to abut against the winding tape 21. When the winding tape 21 is wound up, the winding tape 21 wound on the drive shaft 111 becomes thicker and thicker. At this time, the first telescopic rod 1174 is compressed. The hydraulic oil inside the first telescopic rod 1174 enters the second telescopic rod 1176 through the connecting pipe 1175. The second telescopic rod 1176 extends and drives the toothed plate 1177 to move. The toothed plate 1177 drives the first gear 1178 to rotate. The first gear 1178 drives the second gear 1179 to rotate. The second gear 1179 drives the lead screw 132 to rotate. The movable block 131 moves downward. Under the action of the inclined surface 1311, the movable block 131 pushes the third limiting ring 114 to move. The third limiting ring 114 drives the second limiting ring 113 to approach the first limiting ring 112.

[0042] As the winding tape 21 is unwound, the winding tape 21 wound on the drive shaft 111 becomes thinner and thinner. Under the action of the spring 1173, the mounting base 1172 is pushed to move. The mounting base 1172 pulls the first telescopic rod 1174 to extend. At this time, the hydraulic oil in the second telescopic rod 1176 enters the first telescopic rod 1174 through the connecting pipe 1175. The second telescopic rod 1176 retracts and drives the toothed plate 1177 to move. The toothed plate 1177 drives the first gear 1178 to rotate. The first gear 1178 drives the second gear 1179 to rotate. The second gear 1179 drives the lead screw 132 to rotate. The movable block 131 moves upward. Under the action of the inclined surface 1311, the movable block 131 pushes the third limiting ring 114 to move. The third limiting ring 114 drives the second limiting ring 113 away from the first limiting ring 112.

[0043] The radial dimension of the first gear 1178 is larger than that of the second gear 1179, which can amplify the rotational force of the first gear 1178 and facilitate the rotation of the second gear 1179.

[0044] Reference Figure 2 The first gear 1178 is rotatably connected to the fixed shaft 11781, and the fixed shaft 11781 is fixedly connected to the inner wall of the fixed shell 116.

[0045] In this preferred embodiment, the fixed shaft 11781 is used to support the first gear 1178, and the first gear 1178 can rotate on the fixed shaft 11781.

[0046] Reference Figures 3 to 6 The drive shaft 111 has a groove 1111, and the winding belt 21 and the traction belt 22 are fixedly connected to the inner wall of the groove 1111. The winding belt 21, the traction belt 22 and the curtain 23 have the same thickness.

[0047] In this preferred embodiment, when the drive shaft 111 rotates for winding, the winding tape 21 and the traction tape 22 are wound in the groove 1111. The lengths of the winding tape 21 and the traction tape 22 are adjusted so that when the curtain 23 contacts the drive shaft 111, the winding tape 21 and the traction tape 22 fill the groove 1111.

[0048] Reference Figure 2 It also includes a power assembly 3, which includes a motor 31, a third gear 32 and a fourth gear 33. The motor 31 is fixedly connected to the inner wall of the fixed housing 116 on the first drive member 11. The motor 31 is fixedly connected to the third gear 32. The third gear 32 meshes with the fourth gear 33. The fourth gear 33 is fixedly connected to the drive shaft 111 on the first drive member 11.

[0049] In this preferred embodiment, when the motor 31 is working, it can drive the third gear 32 to rotate, the third gear 32 can drive the fourth gear 33 to rotate, and the fourth gear 33 can drive the drive shaft 111 on the first drive member 11 to rotate. The radial dimension of the third gear 32 is larger than that of the fourth gear 33, so it requires less effort to drive the fourth gear 33 to rotate.

[0050] Reference Figure 2 The fixed shell 116 is provided with an opening 1161, through which the winding belt 21, the traction belt 22 and the curtain 23 pass.

[0051] In this preferred embodiment, the winding tape 21, the traction tape 22, and the curtain 23 pass through the opening 1161 and can be wound or unwound on the drive shaft 111.

[0052] Working principle: When the curtain 23 needs to be wound onto the drive shaft 111 of the first drive member 11, the drive motor 31 rotates, driving the third gear 32 to rotate. The third gear 32 can drive the fourth gear 33 to rotate, and the fourth gear 33 can drive the drive shaft 111 on the first drive member 11 to rotate. The rotation of the drive shaft 111 of the first drive member 11 drives the belt ring 115 to rotate through the first limiting ring 112 and the second limiting ring 113. The belt ring 115 drives the drive shaft 111 of the second drive member 12 to rotate through the first limiting ring 112 and the second limiting ring 113 of the second drive member 12. The winding belt 21 and the traction belt 22 are wound in the groove 1111. When the curtain 23 contacts the drive shaft 111, the winding belt 21 and the traction belt 22 fill the groove 1111, and the curtain 23 wound on the drive shaft 111 of the second drive member 12 is wound onto the drive shaft 111 of the first drive member 11.

[0053] At this time, the curtain 23 and winding tape 21 wound on the drive shaft 111 of the first drive member 11 become thicker and thicker. The winding tape 21 pushes the first telescopic rod 1174 to be compressed through the roller 1171 and the mounting base 1172. The hydraulic oil inside the first telescopic rod 1174 enters the second telescopic rod 1176 through the connecting pipe 1175. The second telescopic rod 1176 extends and drives the toothed plate 1177 to move. The toothed plate 1177 drives the first gear 1178 to rotate. The first gear 1178 drives the second gear 1179 to rotate. The second gear 1179 drives the lead screw 132 to rotate, and the movable block 131 moves downward.

[0054] The movable block 131 pushes the third limiting ring 114 to move under the action of the inclined surface 1311. The third limiting ring 114 drives the second limiting ring 113 to move closer to the first limiting ring 112. The distance between the first limiting ring 112 and the second limiting ring 113 becomes smaller. The belt ring 115 moves away from the axis of the drive shaft 111. The position of the belt ring 115 in the first limiting ring 112 and the second limiting ring 113 is the same as the diameter of the curtain 23 wound on the drive shaft 111 of the first driving member 11. This ensures that the moving speed of the belt ring 115 on the drive shaft 111 of the first driving member 11 is the same as the linear speed of the winding of the curtain 23, thus adaptively adjusting the rotational speed of the drive shaft 111 of the first driving member 11.

[0055] Simultaneously, as the curtain 23 and winding tape 21 wound on the drive shaft 111 of the second drive member 12 are unwound, they become less and less, gradually becoming thinner. The winding tape 21 wound on the drive shaft 111 becomes thinner and thinner. Under the action of the spring force 1173, the mounting seat 1172 is pushed to move. The mounting seat 1172 pulls the first telescopic rod 1174 to extend. At this time, the hydraulic oil in the second telescopic rod 1176 enters the first telescopic rod 1174 through the connecting pipe 1175. The second telescopic rod 1176 retracts. The second telescopic rod 1176 drives the toothed plate 1177 to move. The toothed plate 1177 drives the first gear 1178 to rotate. The first gear 1178 drives the second gear 1179 to rotate. The second gear 1179 drives the lead screw 132 to rotate. The movable block 131 moves upward. Under the action of the inclined surface 1311, the movable block 131 pushes the third limiting ring 114 to move. The third limiting ring 114 drives the second limiting ring 113 away from the first limiting ring 112.

[0056] The gap between the first limiting ring 112 and the second limiting ring 113 increases, and the belt ring 115 moves closer to the axis of the drive shaft 111. The position of the belt ring 115 on the first limiting ring 112 and the second limiting ring 113 is the same as the diameter of the curtain 23 wound on the drive shaft 111 of the second drive member 12. This ensures that the moving speed of the belt ring 115 on the drive shaft 111 of the second drive member 12 is the same as the linear speed of the unwinding of the curtain 23. The rotational speed of the drive shaft 111 of the second drive member 12 is adaptively adjusted so that the rotational linear speed of the drive shaft 111 of the first drive member 11 and the second drive member 12 is the same when winding and unwinding the curtain 23. This ensures the synchronicity of winding and unwinding the curtain 23, making the winding and unwinding of the curtain 23 more precise and avoiding asynchrony.

Claims

1. A roller blind system, characterized in that: The system includes a drive assembly (1), which includes a first drive member (11) and a second drive member (12). The first drive member (11) and the second drive member (12) have the same structure. The first drive member (11) and the second drive member (12) respectively include a drive shaft (111), a first limiting ring (112), a second limiting ring (113), a third limiting ring (114), and a belt ring (115). The drive shaft (111) is fixedly connected to the first limiting ring (112). The drive shaft (111) is slidably connected to the second limiting ring (113) and the third limiting ring (114). The second limiting ring (113) is fixedly connected to the third limiting ring (114). The first limiting ring (112) and the second limiting ring (113) are tapered on their adjacent sides. A belt ring (115) is provided between the first limiting ring (112) and the second limiting ring (113). Roller blind assembly (2), the roller blind assembly (2) includes a winding belt (21), a traction belt (22) and a curtain surface (23). One end of the winding belt (21) is fixedly connected to the drive shaft (111) on the first drive member (11), and the other end of the winding belt (21) is fixedly connected to the drive shaft (111) on the second drive member (12). The two ends of the curtain surface (23) are respectively fixedly connected to the traction belts (22), one of the traction belts (22) is fixedly connected to the drive shaft (111) on the first drive member (11), and the other traction belt (22) is fixedly connected to the drive shaft (111) on the second drive member (12). The first driving member (11) and the second driving member (12) further include a fixed shell (116), and the two ends of the driving shaft (111) are respectively rotatably connected to the fixed shell (116). The drive assembly (1) also includes a control component (13), which includes a movable block (131) and a lead screw (132). The third limiting ring (114) is provided with a conical structure. The movable block (131) is provided with an inclined surface (1311) on the side near the third limiting ring (114). The movable block (131) is slidably connected to the inner wall of the fixed shell (116). The movable block (131) is threadedly connected to one end of the lead screw (132), and the other end of the lead screw (132) is rotatably connected to the fixed shell (116). The movable block (131) is provided with a sliding groove (1312), and the inner wall of the sliding groove (1312) is slidably connected to a fixing strip (1313), and the fixing strip (1313) is fixedly connected to the inner wall of the fixing shell (116); The first driving member (11) and the second driving member (12) further include an adjusting member (117), the adjusting member (117) including a roller (1171), a mounting base (1172), a spring (1173), a first telescopic rod (1174), a connecting pipe (1175), a second telescopic rod (1176), a toothed plate (1177), a first gear (1178), and a second gear (1179). The roller (1171) is located on one side of the winding tape (21) and the roller (1171) is in contact with the winding tape (21). The roller (1171) is rotatably connected to the mounting base (1172). The mounting base (1173) 172) One end of the first telescopic rod (1174) is fixedly connected, and the other end of the first telescopic rod (1174) is fixedly connected to the inner wall of the fixed shell (116). The first telescopic rod (1174) is connected to the second telescopic rod (1176) through the connecting pipe (1175). The second telescopic rod (1176) is fixedly connected to the inner wall of the fixed shell (116). The end of the second telescopic rod (1176) is fixedly connected to the toothed plate (1177). The toothed plate (1177) meshes with the first gear (1178). The first gear (1178) meshes with the second gear (1179). The second gear (1179) is fixedly connected to the lead screw (132). The spring (1173) is sleeved on the first telescopic rod (1174), and the spring (1173) is used to push the mounting base (1172) to move under the action of elastic force; The power assembly (3) includes an electric motor (31), a third gear (32) and a fourth gear (33). The electric motor (31) is fixedly connected to the inner wall of the fixed shell (116) on the first drive member (11). The electric motor (31) is fixedly connected to the third gear (32). The third gear (32) meshes with the fourth gear (33). The fourth gear (33) is fixedly connected to the drive shaft (111) on the first drive member (11).

2. The roller blind system as described in claim 1, characterized in that: The first gear (1178) is rotatably connected to the fixed shaft (11781), and the fixed shaft (11781) is fixedly connected to the inner wall of the fixed shell (116).

3. The roller blind system as described in claim 1, characterized in that: The drive shaft (111) has a groove (1111) and the winding belt (21) and traction belt (22) are fixedly connected to the inner wall of the groove (1111).

4. The roller blind system as described in claim 1, characterized in that: The winding belt (21), the traction belt (22), and the curtain (23) are of the same thickness.

5. The roller blind system as described in claim 1, characterized in that: The fixed shell (116) is provided with an opening (1161) through which the winding belt (21), the traction belt (22) and the curtain (23) pass.

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