CN117266734A - Rolling shutter system - Google Patents

Abstract

The invention discloses a roller shutter system, which relates to the field of roller shutters and comprises a driving assembly and a roller shutter assembly, wherein the driving assembly comprises a first driving piece and a second driving piece, the first driving piece and the second driving piece have the same structure, the first driving piece and the second driving piece respectively comprise a driving shaft, a first limiting ring, a second limiting ring, a third limiting ring and a belt ring, the driving shaft is fixedly connected with the first limiting ring, the driving shaft is slidably connected with the second limiting ring and the third limiting ring, the second limiting ring is fixedly connected with the third limiting ring, and the mutually close sides of the first limiting ring and the second limiting ring are conical. The rotational speed of the driving shaft on the first driving piece and the rotational speed of the driving shaft on the second driving piece are adaptively adjusted, so that the rotational linear speeds of the driving shaft of the first driving piece and the driving shaft of the second driving piece are the same when the curtain cloth is wound and unwound, the synchronicity of winding and unwinding the curtain cloth is ensured, the winding and unwinding of the curtain cloth are more accurate, and the asynchronous situation is avoided.

Description

Rolling shutter system

Technical Field

The invention relates to the field of roller blinds, in particular to a roller blind system.

Background

Windows are an important component for indoor lighting and illumination, and are indispensable in present house construction. Window curtains and roll curtains are generally installed on windows, and are used for shading or windshields. The rolling curtain generally comprises a reel assembly and a bottom plate assembly which are positioned at two ends of the curtain, wherein the reel assembly comprises a winding drum for winding the curtain, an end cover and the like, and the bottom plate assembly is fixed on the other end of the curtain.

In the related art, in the process of gradually winding curtain cloth, winding is increased when the curtain cloth wound on the top winding drum is wound, the curtain cloth wound on the bottom winding drum is reduced due to unwinding, the thickness of the top winding drum is different from that of the bottom winding drum, and the top winding drum and the bottom winding drum are asynchronous in winding and unwinding.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: in the process of rolling up the curtain cloth step by step, the winding is increased when the curtain cloth wound on the top winding drum is rolled up, the curtain cloth wound on the bottom winding drum is reduced due to unreeling, the thicknesses of the top winding drum and the bottom winding drum are different, and the situation that the winding and the unreeling of the top winding drum and the bottom winding drum are asynchronous is caused.

In order to solve the technical problems, the invention provides the following technical scheme: the rolling curtain system comprises a driving assembly and a rolling curtain assembly, wherein the driving assembly comprises a first driving piece and a second driving piece, the first driving piece and the second driving piece are identical in structure, the first driving piece and the second driving piece respectively comprise a driving shaft, a first limiting ring, a second limiting ring, a third limiting ring and a belt ring, the driving shaft is fixedly connected with the first limiting ring, the driving shaft is slidably connected with the second limiting ring and the third limiting ring, the second limiting ring is fixedly connected with the third limiting ring, the first limiting ring and the second limiting ring are in conical shapes close to each other, and the belt ring is arranged between the first limiting ring and the second limiting ring; the rolling curtain component comprises a winding belt, a traction belt and a curtain surface, wherein one end of the winding belt is fixedly connected with a driving shaft on the first driving piece, the other end of the winding belt is fixedly connected with a driving shaft on the second driving piece, two ends of the curtain surface are respectively fixedly connected with the traction belt, one traction belt is fixedly connected with the driving shaft on the first driving piece, and the other traction belt is fixedly connected with the driving shaft on the second driving piece.

As a preferred embodiment of the roller blind system according to the invention, wherein: the first driving piece and the second driving piece further comprise fixing shells, and two ends of the driving shaft are respectively connected with the fixing shells in a rotating mode.

As a preferred embodiment of the roller blind system according to the invention, wherein: the driving assembly further comprises a control piece, the control piece comprises a movable block and a screw rod, the third limiting ring is provided with a cone shape, one side, close to the third limiting ring, of the movable block is provided with an inclined surface, the movable block is connected with the inner wall of the fixed shell in a sliding mode, the movable block is connected with one end of the screw rod in a threaded mode, and the other end of the screw rod is connected with the fixed shell in a rotating mode.

As a preferred embodiment of the roller blind system according to the invention, wherein: a sliding groove is formed in the movable block, the inner wall of the sliding groove is connected with a fixing strip in a sliding mode, and the fixing strip is fixedly connected with the inner wall of the fixing shell.

As a preferred embodiment of the roller blind system according to the invention, wherein: the first driving piece and the second driving piece further comprise adjusting pieces, each adjusting piece comprises a roller, an installation seat, a spring, a first telescopic rod, a connecting pipe, a second telescopic rod, a toothed plate, a first gear and a second gear, the rollers are located on one side of the winding belt and are in contact with the winding belt, the rollers are rotationally connected with the installation seat, one end of each of the first telescopic rods is fixedly connected with the installation seat, the other end of each of the first telescopic rods is fixedly connected with the inner wall of a fixed shell, the first telescopic rods are communicated with the second telescopic rods through the connecting pipe, the inner wall of the fixed shell is fixedly connected with the end of each of the second telescopic rods, the toothed plate is meshed with the first gear, the first gear is meshed with the second gear, and the second gear is fixedly connected with the screw rod.

As a preferred embodiment of the roller blind system according to the invention, wherein: the first gear is rotationally connected with a fixed shaft which is fixedly connected with the inner wall of the fixed shell.

As a preferred embodiment of the roller blind system according to the invention, wherein: the driving shaft is provided with a groove, and the winding belt and the traction belt are fixedly connected with the inner wall of the groove.

As a preferred embodiment of the roller blind system according to the invention, wherein: the thickness of the winding belt, the traction belt and the curtain surface are the same.

As a preferred embodiment of the roller blind system according to the invention, wherein: the driving assembly comprises a motor, a third gear and a fourth gear, the motor is fixedly connected with the inner wall of the fixed shell on the first driving piece, the motor is fixedly connected with the third gear, the third gear is meshed with the fourth gear, and the fourth gear is fixedly connected with the driving shaft on the first driving piece.

As a preferred embodiment of the roller blind system according to the invention, wherein: the fixing shell is provided with an opening, and the winding belt, the traction belt and the curtain face pass through the opening.

The invention has the beneficial effects that: according to the invention, the rotation speeds of the driving shafts on the first driving piece and the second driving piece are adaptively adjusted, so that the rotation linear speeds of the driving shafts of the first driving piece and the second driving piece are the same when the curtain cloth is rolled and unrolled, the synchronism of the curtain cloth is ensured when the curtain cloth is rolled and unrolled, the rolling and unrolling of the curtain cloth are more accurate, and the asynchronous condition is avoided.

Drawings

Fig. 1 is a schematic diagram of a driving assembly in an embodiment of the disclosure.

Fig. 2 is a schematic structural view of a first driving member in an embodiment of the disclosure.

Fig. 3 is a schematic diagram of the overall structure in an embodiment of the present disclosure.

Fig. 4 is an enlarged schematic view at a in fig. 3 in an embodiment of the present disclosure.

Fig. 5 is an enlarged schematic view at B in fig. 2 in an embodiment of the present disclosure.

Fig. 6 is a schematic view of a drive shaft structure in an embodiment of the present disclosure.

Reference numerals: the driving assembly 1, the first driving member 11, the second driving member 12, the driving shaft 111, the groove 1111 first limit ring 112, the second limit ring 113, the third limit ring 114, the belt ring 115, the fixing case 116, the opening 1161, the adjusting member 117, the roller 1171, the mounting base 1172, the spring 1173, the first telescopic rod 1174, the connecting tube 1175, the second telescopic rod 1176, the toothed plate 1177, the first gear 1178, the fixed shaft 11781, the second gear 1179, the control member 13, the movable block 131, the inclined surface 1311, the chute 1312, the fixed bar 1313, the screw 132, the roller shutter assembly 2, the winding belt 21, the traction belt 22, the shutter surface 23, the driving assembly 3, the motor 31, the third gear 32, and the fourth gear 33.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1

Referring to fig. 1 and 2, this embodiment provides a roller shutter system, including a driving assembly 1 and a roller shutter assembly 2, the driving assembly 1 includes a first driving member 11 and a second driving member 12, the first driving member 11 and the second driving member 12 have the same structure, the first driving member 11 and the second driving member 12 include a driving shaft 111, a first limiting ring 112, a second limiting ring 113, a third limiting ring 114 and a belt ring 115, the driving shaft 111 is fixedly connected with the first limiting ring 112, the driving shaft 111 is slidably connected with the second limiting ring 113 and the third limiting ring 114, the second limiting ring 113 is fixedly connected with the third limiting ring 114, the first limiting ring 112 and the second limiting ring 113 are tapered near sides, and the belt ring 115 is disposed between the first limiting ring 112 and the second limiting ring 113.

In this embodiment, preferably, when the driving shaft 111 on the first driving member 11 rotates, the belt ring 115 is driven to rotate by the first limiting ring 112 and the second limiting ring 113, and the belt ring 115 drives the driving shaft 111 on the second driving member 12 to rotate by the first limiting ring 112 and the second limiting ring 113 on the second driving member 12; the first stop collar 112 and the second stop collar 113 are tapered near each other, and when the distance between the first stop collar 112 and the second stop collar 113 becomes large, the belt collar 115 approaches the axial center of the drive shaft 111; when the distance between the first stopper ring 112 and the second stopper ring 113 becomes smaller, the belt ring 115 is away from the axial center of the drive shaft 111.

The roller shutter assembly 2 comprises a winding belt 21, a traction belt 22 and a curtain surface 23, wherein one end of the winding belt 21 is fixedly connected with a driving shaft 111 on the first driving piece 11, the other end of the winding belt 21 is fixedly connected with the driving shaft 111 on the second driving piece 12, two ends of the curtain surface 23 are respectively fixedly connected with the traction belt 22, one traction belt 22 is fixedly connected with the driving shaft 111 on the first driving piece 11, and the other traction belt 22 is fixedly connected with the driving shaft 111 on the second driving piece 12. The driving shaft 111 can drive the winding belt 21 and the traction belt 22 to move when rotating, and can drive the curtain surface 23 to move when the traction belt 22 moves.

In this embodiment, preferably, the driving shaft 111 of the first driving member 11 rotates during winding, the belt ring 115 is driven to rotate by the first limiting ring 112 and the second limiting ring 113, the belt ring 115 drives the driving shaft 111 of the second driving member 12 to rotate by the first limiting ring 112 and the second limiting ring 113 of the second driving member 12, the curtain surface 23 wound on the driving shaft 111 of the second driving member 12 is wound on the driving shaft 111 of the first driving member 11, at this time, the curtain surface 23 wound on the driving shaft 111 of the first driving member 11 is thicker and thicker, the second limiting ring 113 of the first driving member 11 is controlled to be close to the first limiting ring 112, the distance between the first limiting ring 112 and the second limiting ring 113 is reduced, the belt ring 115 is far away from the axle center of the driving shaft 111, the positions of the belt ring 115 on the first limiting ring 112 and the second limiting ring 113 are the same as the diameter of the curtain surface 23 wound on the driving shaft 111 of the first driving member 11, and the moving speed of the belt ring 115 on the driving shaft 111 of the first driving member 11 is ensured to be the same as the linear speed of the winding of the curtain surface 23, and the adaptive rotation speed regulation is performed on the driving shaft 111 of the first driving member 11.

Meanwhile, when the curtain surface 23 wound on the driving shaft 111 of the second driving member 12 is unreeled, the curtain surface is less and less gradually thinned, the second limiting ring 113 of the second driving member 12 is controlled to be far away from the first limiting ring 112, the distance between the first limiting ring 112 and the second limiting ring 113 is increased, the belt ring 115 is close to the axle center of the driving shaft 111, the positions of the belt ring 115 on the first limiting ring 112 and the second limiting ring 113 are the same as the diameter of the curtain cloth 23 wound on the driving shaft 111 of the second driving member 12, the moving speed of the belt ring 115 on the driving shaft 111 of the second driving member 12 is ensured to be the same as the unreeled linear speed of the curtain cloth 23, the rotating linear speed of the driving shaft 111 of the second driving member 12 is controlled to be the same when the driving shaft 111 of the first driving member 11 and the driving member 12 is used for reeling and unreeled the curtain cloth 23, the synchronism when the curtain cloth 23 is ensured, the reeling and unreeled are more accurate, and the asynchronous condition is avoided.

Example 2

Referring to fig. 1 to 6, this embodiment is based on the previous embodiment, and differs from the previous embodiment in that.

The first driving member 11 and the second driving member 12 further include a fixing case 116, and both ends of the driving shaft 111 are rotatably connected to the fixing case 116, respectively.

In this embodiment, preferably, there are two fixing shells 116, which are respectively installed at the top and bottom of the windowsill in use, for fixing the position of the driving shaft 111, the first driving member 11 is located in the fixing shell 116 at the top of the windowsill, and the second driving member 12 is located in the fixing shell 116 at the bottom of the windowsill.

The driving shaft 111 can drive the winding belt 21 and the traction belt 22 to move when rotating, and the traction belt 22 can drive the curtain surface 23 to move when moving, and the curtain surface 23 can be prevented from being blown by wind by a traction mode of the upper end and the lower end of the curtain surface 23, so that the wind resistance of the curtain surface 23 is enhanced.

When the curtain surface 23 is wound on the driving shaft 111 on the second driving piece 12, and the driving shaft 111 on the first driving piece 11 is driven to rotate to wind the curtain surface 23, the driving shaft 111 of the second driving piece 12 gradually unwinds the curtain surface 23, and at the moment, the curtain surface 23 moves from bottom to top, so that sunlight below can be shielded, unlike the curtain surface 23 in the prior art, the curtain surface 23 can only be shielded from top to bottom, and the use is more flexible and convenient.

Referring to fig. 2, the driving assembly 1 further includes a control member 13, the control member 13 includes a movable block 131 and a screw rod 132, the third limiting ring 114 is provided with a taper, one side of the movable block 131, which is close to the third limiting ring 114, is provided with an inclined surface 1311, the movable block 131 is slidably connected with an inner wall of the fixed shell 116, the movable block 131 is in threaded connection with one end of the screw rod 132, and the other end of the screw rod 132 is rotatably connected with the fixed shell 116.

In this embodiment, preferably, when the screw rod 132 rotates, under the action of the screw thread, the movable block 131 can be driven to move up and down, and the movable block 131 can push the third limiting ring 114 to move under the action of the inclined surface 1311, and the third limiting ring 114 drives the second limiting ring 113 to approach or separate from the first limiting ring 112.

Referring to fig. 2 and 3, the movable block 131 is provided with a sliding groove 1312, an inner wall of the sliding groove 1312 is slidably connected with a fixing strip 1313, and the fixing strip 1313 is fixedly connected with an inner wall of the fixing shell 116.

In this embodiment, preferably, when the movable block 131 moves, the sliding groove 1312 on the movable block 131 moves on the fixed bar 1313, which is beneficial to improving the stability of the movable block 131 when moving.

Referring to fig. 3 and 5, the first driving member 11 and the second driving member 12 further include an adjusting member 117, where the adjusting member 117 includes a roller 1171, a mounting seat 1172, a spring 1173, a first telescopic rod 1174, a connecting tube 1175, a second telescopic rod 1176, a toothed plate 1177, a first gear 1178 and a second gear 1179, the roller 1171 is located at one side of the winding belt 21, the roller 1171 contacts with the winding belt 21, the roller 1171 is rotationally connected with the mounting seat 1172, the mounting seat 1172 is fixedly connected with one end of the first telescopic rod 1174, the other end of the first telescopic rod 1174 is fixedly connected with the inner wall of the fixed housing 116, the first telescopic rod 1174 is communicated with the second telescopic rod 1176 through the connecting tube 1175, the second telescopic rod 1176 is fixedly connected with the toothed plate 1177, the toothed plate 1177 is meshed with the first gear 1178, the first gear 1178 is meshed with the second gear 1179, and the second gear 1179 is fixedly connected with the screw 132.

In this embodiment, preferably, 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 belt 21, when the winding belt 21 is wound, the winding belt 21 wound on the driving shaft 111 is thicker and thicker, at this time, the first telescopic rod 1174 is compressed, hydraulic oil in the first telescopic rod 1174 enters the second telescopic rod 1176 through the connecting pipe 1175, the second telescopic rod 1176 stretches, 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 downwards, the movable block 131 pushes the third limiting ring 114 to move under the action of the inclined surface 1311, and the third limiting ring 114 drives the second limiting ring 113 to approach the first limiting ring 112.

When the winding belt 21 is unreeled, the winding belt 21 wound on the driving shaft 111 is thinner and thinner, the mounting seat 1172 is pushed to move under the action of the elastic force of the spring 1173, the mounting seat 1172 pulls the first telescopic rod 1174 to stretch, at the moment, hydraulic oil in the second telescopic rod 1176 enters the first telescopic rod 1174 through the connecting pipe 1175, the second telescopic rod 1176 contracts, 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 screw rod 132 to rotate, the movable block 131 moves upwards, the movable block 131 pushes the third limiting ring 114 to move under the action of the inclined surface 1311, and the third limiting ring 114 drives the second limiting ring 113 to be far away from the first limiting ring 112.

The first gear 1178 has a larger radial dimension than the second gear 1179, and can amplify the rotation force of the first gear 1178 so as to drive the second gear 1179 to rotate.

Referring to fig. 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 housing 116.

Preferably, in this 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.

Referring to fig. 3 to 6, the driving shaft 111 is provided with 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 wrapping 21, traction 22 and curtain 23 are the same thickness.

In this embodiment, preferably, the winding belt 21 and the traction belt 22 are wound in the groove 1111 while being wound by rotating on the driving shaft 111. The lengths of the wrapping tape 21 and the traction tape 22 are adjusted so that the grooves 1111 are filled with the wrapping tape 21 and the traction tape 22 when the curtain surface 23 contacts the driving shaft 111.

Referring to fig. 2, the driving assembly 3 further comprises a motor 31, a third gear 32 and a fourth gear 33, the motor 31 is fixedly connected with the inner wall of the fixed shell 116 on the first driving member 11, the motor 31 is fixedly connected with the third gear 32, the third gear 32 is in meshed connection with the fourth gear 33, and the fourth gear 33 is fixedly connected with the driving shaft 111 on the first driving member 11.

In this embodiment, preferably, when the motor 31 is operated, the third gear 32 can be driven to rotate, the third gear 32 can drive the fourth gear 33 to rotate, and the fourth gear 33 can drive the driving shaft 111 on the first driving member 11 to rotate. The radial dimension of the third gear 32 is larger than that of the fourth gear 33, and the fourth gear 33 is driven to rotate, so that labor is saved.

Referring to fig. 2, the fixing case 116 is provided with an opening 1161, and the wrapping tape 21, the traction tape 22, and the curtain 23 pass through the opening 1161.

Preferably in this embodiment, the wrapping 21, traction 22 and curtain 23 pass through the opening 1161 to enable winding or unwinding on the drive shaft 111.

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

At this time, the cord fabric 23 and the winding belt 21 wound by the driving shaft 111 on the first driving member 11 are thicker and thicker, the winding belt 21 pushes the first telescopic rod 1174 to be compressed through the roller 1171 and the mounting seat 1172, hydraulic oil in the first telescopic rod 1174 enters the second telescopic rod 1176 through the connecting pipe 1175, the second telescopic rod 1176 stretches, 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 screw 132 to rotate, and the movable block 131 moves downwards.

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 be close to the first limiting ring 112, the distance between the first limiting ring 112 and the second limiting ring 113 is reduced, the belt ring 115 is far away from the axis center of the driving shaft 111, the positions of the belt ring 115 on the first limiting ring 112 and the second limiting ring 113 are the same as the diameter of the curtain cloth 23 wound by the driving shaft 111 on the first driving member 11, and when the moving speed of the belt ring 115 on the driving shaft 111 of the first driving member 11 is ensured to be the same as the winding linear speed of the curtain cloth 23, the rotating speed of the driving shaft 111 of the first driving member 11 is adaptively adjusted.

Meanwhile, when the curtain surface 23 wound on the driving shaft 111 of the second driving member 12 and the winding belt 21 are unreeled,

less and less, the winding belt 21 wound on the driving shaft 111 gradually becomes thinner, under the action of the elastic force of the spring 1173, the mounting seat 1172 is pushed to move, the mounting seat 1172 pulls the first telescopic rod 1174 to stretch, at the moment, hydraulic oil in the second telescopic rod 1176 enters the first telescopic rod 1174 through the connecting pipe 1175, the second telescopic rod 1176 contracts, 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 screw rod 132 to rotate, the movable block 131 moves upwards, the movable block 131 pushes the third limiting ring 114 to move under the action of the inclined surface 1311, and the third limiting ring 114 drives the second limiting ring 113 to be far away from the first limiting ring 112.

The distance between the first limiting ring 112 and the second limiting ring 113 is increased, the belt ring 115 is close to the axis of the driving shaft 111, the positions of the belt ring 115 on the first limiting ring 112 and the second limiting ring 113 are the same as the diameters of the curtain cloth 23 wound by the driving shaft 111 on the second driving member 12, the moving speed of the belt ring 115 on the driving shaft 111 of the second driving member 12 is the same as the unreeling linear speed of the curtain cloth 23 during guaranteeing, the rotating speed of the driving shaft 111 of the second driving member 12 is adaptively adjusted, the rotating linear speeds of the driving shaft 111 of the first driving member 11 and the driving shaft 111 of the second driving member 12 are the same during reeling and unreeling the curtain cloth 23, the synchronism during reeling and unreeling the curtain cloth 23 is guaranteed, the reeling and unreeling of the curtain cloth 23 is more accurate, and the asynchronous condition is avoided.

Claims (10)

1. A roller shade system, characterized by: the driving assembly (1) comprises a first driving piece (11) and a second driving piece (12), the first driving piece (11) and the second driving piece (12) are identical in structure, the first driving piece (11) and the second driving piece (12) respectively comprise a driving shaft (111), a first limiting ring (112), a second limiting ring (113), a third limiting ring (114) and a belt ring (115), the driving shaft (111) is fixedly connected with the first limiting ring (112), the driving shaft (111) is slidably connected with the second limiting ring (113) and the third limiting ring (114), the second limiting ring (113) is fixedly connected with the third limiting ring (114), the first limiting ring (112) and the second limiting ring (113) are conical in shape near sides, and the belt ring (115) is arranged between the first limiting ring (112) and the second limiting ring (113);

the roller shutter assembly (2), roller shutter assembly (2) include winding area (21), traction belt (22) and curtain (23), drive shaft (111) on winding area (21) one end fixed connection first driving piece (11), drive shaft (111) on winding area (21) other end fixed connection second driving piece (12), curtain (23) both ends are fixed connection traction belt (22) respectively, drive shaft (111) on one traction belt (22) fixed connection first driving piece (11), drive shaft (111) on another traction belt (22) fixed connection second driving piece (12).

2. The roller shade system of claim 1, wherein: the first driving piece (11) and the second driving piece (12) further comprise a fixed shell (116), and two ends of the driving shaft (111) are respectively connected with the fixed shell (116) in a rotating mode.

3. A roller shade system as defined in claim 2, wherein: the driving assembly (1) further comprises a control piece (13), the control piece (13) comprises a movable block (131) and a screw rod (132), the third limiting ring (114) is provided with a cone shape, one side, close to the third limiting ring (114), of the movable block (131) is provided with an inclined surface (1311), the movable block (131) is connected with the inner wall of the fixed shell (116) in a sliding mode, and the movable block (131) is arranged on the inner wall of the fixed shell

One end of a screw rod (132) is connected in a threaded manner, and the other end of the screw rod (132) is connected with the fixed shell (116) in a rotating manner.

4. A roller shade system as defined in claim 3, wherein: a sliding groove (1312) is formed in the movable block (131), the inner wall of the sliding groove (1312) is connected with a fixing strip (1313) in a sliding mode, and the fixing strip (1313) is fixedly connected with the inner wall of the fixing shell (116).

5. A roller shade system as defined in claim 3, wherein: the first driving piece (11) and the second driving piece (12) further comprise an adjusting piece (117), the adjusting piece (117) comprises a roller (1171), a mounting seat (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 a winding belt (21), the roller (1171) is in contact with the winding belt (21), the roller (1171) is rotationally connected with the mounting seat (1172), the mounting seat (1172) is fixedly connected with one end of the first telescopic rod (1174), the other end of the first telescopic rod (1174) is fixedly connected with the inner wall of a fixed shell (116), the first telescopic rod (1174) is communicated with the second telescopic rod (1176) through the connecting pipe (1175), the end of the second telescopic rod (1176) is fixedly connected with the inner wall of the fixed shell (116), the toothed plate (1177) is fixedly connected with the first gear (1178) and the first gear (1178) is meshed with the second gear (1179).

6. The roller shade system of claim 5, wherein: the first gear (1178) is rotatably connected with a fixed shaft (11781), and the fixed shaft (11781) is fixedly connected with the inner wall of the fixed shell (116).

7. The roller shade system of claim 1, wherein: the driving shaft (111) is provided with a groove (1111), and the winding belt (21) and the traction belt (22) are fixedly connected with the inner wall of the groove (1111).

8. The roller shade system of claim 1, wherein: the thickness of the winding belt (21), the traction belt (22) and the curtain surface (23) is the same.

9. A roller shade system as defined in claim 2, wherein: still include drive assembly (3), drive assembly (3) include motor (31), third gear (32) and fourth gear (33), fixed casing (116) inner wall on motor (31) fixed connection first driving piece (11), motor (31) fixed connection third gear (32), fourth gear (33) are connected in the meshing of third gear (32), drive shaft (111) on fourth gear (33) fixed connection first driving piece (11).

10. A roller shade system as defined in claim 2, wherein: the fixing shell (116) is provided with an opening (1161), and the winding belt (21), the traction belt (22) and the curtain surface (23) pass through the opening (1161).