TWM594418U - Structure of curtain - Google Patents

Abstract

This creation relates to a curtain structure, including: a track with an accommodating space inside; a first and a second driving device are located at the two ends of the track; a first and a second winding device are located on the track Each of them has at least one first and one second rope winding member and at least one first and one second rope pulling member. The first and second driving devices can respectively drive the first and second rope winding members to wind Put the first and second ropes; at least one first limiting member is provided at one end of the at least one first rope winding member, at least one second limiting member is provided at one end of the at least one second rope winding member, the first When rotating with the second rope winding member and moving along the longitudinal direction of the track, the first limiting member and the second limiting member will block each other.

Description

Curtain structure

This creation is related to curtains. In detail, it refers to a curtain structure with a two-roller device.

Traditional curtains usually only have a single curtain. When it is used, it is mainly through opening or closing the curtain, opening or blocking the light irradiated from the outside to adjust the intensity of the indoor light, but a single curtain has only one kind of light transmission. If the shade of the installed curtain is too good, the room will be too dark when the curtain is opened. If the shade is not enough, the room still feels too bright when the curtain is opened. Traditional curtains can only have one curtain and can only provide a single light change , It is not possible to adjust the light slightly. In order to have both good concealment and fine-tuning effects at the same time, the author has created several related patents. By driving a two-winding shaft through a driving device to control the two cloth mantles, the first cloth mantle can be expanded or The second mantle is unfolded, or the two mantles are unfolded at the same time, and the two mantles with different shading effects are adjusted to different degrees of shading.

In order to strive for excellence, the inventor developed this creation to provide curtains that are different from conventional knowledge.

The main purpose of this creation is to provide a curtain structure with a two-winding device, which has the function of snapping against each other.

Another purpose of this creation is to provide a curtain structure that can be assembled into a curtain structure with a middle rail and a lower rail, and can control the lifting of the middle rail and the lower rail.

To achieve the above purpose, this creative department provides a curtain structure, including: A track is a long body with an accommodating space inside; A first and a second driving device are respectively provided at the two ends of the track, the first driving device has a first operating rope, and the second driving device has a second operating rope to control the first and second operations A rope that can drive the first and second driving devices; A first and a second winding device are provided in the track, each having at least a first and at least a second rope winding member, at least a first and at least a second rope, the first driving device may Driving the at least one first rope winding member of the first winding device to rotate to unwind the at least one first rope, when the at least one first rope winding member rotates, it is displaced along the longitudinal direction of the track; the second drive The device can drive the at least one second rope winding member of the second winding device to rotate to unwind the at least one second rope, and the at least one second rope winding member also displaces along the longitudinal direction of the track when rotating; At least one first limiting member is disposed at one end of the at least one first rope winding member, at least one second limiting member is disposed at one end of the at least one second rope winding member, and the at least one first winding member rotates so that the at least one When a first limiting member is displaced toward the at least one second limiting member, the at least one first limiting member can be blocked by the at least one second limiting member; the at least one second rope winding member rotates so that the When at least one second limiting member is displaced toward the at least one first limiting member, the at least one second limiting member can be blocked by the at least one first limiting member.

In this way, by blocking the two limiting members, the two winding devices must be operated in a specific order, which has a foolproof effect.

Please refer to FIGS. 1 to 4 for a preferred embodiment of a curtain structure 100 provided by this creation. FIG. 1 shows that the curtain structure 100 of this creation cooperates with a middle rail 63, a lower rail 64 and a second curtain body 61. 62 to form a curtain. The curtain structure 100 includes: a track 10, two driving devices 20a, 20b, two winding devices 30a, 30b, at least one first limiting member 40, and at least one second limiting member 50. (In this manual, the general name of each component is not distinguished by the symbols a and b. When describing a specific component, the symbols a and b are used.)

The track 10 is a U-shaped elongated body with a bottom wall 11 at the bottom, side walls 12 are formed on both sides, and an accommodating space 13 is formed inside the bottom wall 11 and a plurality of support seats 14 are provided on the bottom wall 11. The number of 14 can be increased as needed. Each supporting seat 14 is provided with two receiving grooves 141a and 141b. The structures of the two receiving grooves 141a and 141b are completely the same, and are divided into a first receiving groove 141a and a first Two tanks 141b;

The two driving devices 20 are respectively disposed at the two ends of the track 10, and are divided into a first driving device 20a and a second driving device 20b according to the positions, each having a transmission rod 21, and the cross section of the two transmission rods 21 is set as Non-circular, such as rectangular, the first driving device 20a has a first operating rope 22a, the second driving device 20b has a second operating rope 22b, and both the first and second operating ropes 22a, 22b are defined by the track The front side of 10 extends out and is exposed at the two ends of the track 10 respectively. The operating rope shown in this embodiment is a rope, which can also be formed of a bead chain or other types of ropes; by manipulating the first and second operations The ropes 22a and 22b can respectively drive the first driving device 20a and the second driving device 20b to produce a clockwise or counterclockwise rotation;

The two rewinding devices 30 have the same structure and are arranged in the track 10, and can be divided into a first rewinding device 30a and a second rewinding device 30b according to the position, the first rewinding device 30a is located in the accommodating space 13, the second retracting device 30b is located behind the accommodating space 13, please refer to FIG. 5, the first retracting device 30a has at least a first rotating member 31a, at least a first screw 32a, At least one first rope winding member 33a and at least one first rope 34a; the second winding device 30b has at least one second rotating member 31b, at least one second screw connection piece 32b, and at least one second rope winding member 33a , And at least one second drawstring 34b. Each winding device 30 of this embodiment has a plurality of rotating members, screw pieces, rope winding members, and pulling ropes.

Each of the first and second rotating members 31a, 31b is provided with a limiting ring 311 on the outer ring, and the first and second rotating members 31a, 31b are disposed on each of the support seats 14, and each of the limiting positions The ring 311 is rotatably limited in the first and second accommodating grooves 141a, 141b respectively. The first and second rotating members 31a, 31b each have a non-circular (for example, rectangular) contact hole 312 formed on one side. The connecting holes 312 are provided for the transmission rods 21 of the first and second driving devices 20a, 20b respectively, and the first and second rotating members 31a, 31b are received by the first and second driving devices 20a, 20b, respectively Driven to rotate in the first and second accommodating grooves 141a, 141b; and each of the first and second rotating members 31a, 31b is concavely provided with a connecting groove 313, protruding in the groove wall of the connecting groove 313 At least one rib 314 is provided (in this example, there are two ribs); each of the first and second screw pieces 32a, 32b is limited to the first and second receiving grooves 141a, 141b, respectively, the first and second The screw pieces 32a and 32b are respectively provided with a screw hole 321 which can coincide with the connecting groove 313 of the first and second rotating members 31a and 31b;

Each of the first and second rope winding members 33a, 33b is provided with an outer screw portion 331 and at least one long groove 332 (in this embodiment, there are two long grooves), which are arranged along the longitudinal direction of the rope winding member. 331 is screwed into the screw holes 321 of the screw pieces 32a, 32b, the long groove 332 is engaged with the rib 314, the first rope winding member 33a is disposed in the connecting groove 313 of the first rotating member 31a, by The long groove 332 is embedded with the rib 314 so that each rope winding member 33 and each rotating member 31 can rotate synchronously, and since each rope winding member 33 is screwed to the screw hole 321 of each screw piece 32, therefore, When the rope winding member rotates, it can be displaced relative to each rotating member 31, and then the rotating member can be moved out or retracted. In addition, the first and second rope winding members 33a and 33b are each provided with an enlarged head 333, and a plurality of screw holes 334 are provided on each of the head 333.

One ends of the first and second draw cords 34a, 34b are respectively connected to the first and second rope winding members 33a, 33b. The other ends of the first and second draw cords 34a, 34b pass through the track. The first The other end of the pull cord 34a passes through the middle rail 63 and connects to the lower rail 64, and the other end of the second pull cord 34b connects to the middle rail 63.

The first limiting member 40 is disposed on the first coiling member 33a, please refer to FIG. 4, the first limiting member 40 is a disc with an inverted T-shaped cross section, and a plurality of The screw holes 41, the plurality of screw holes 41 of the first limiting member 40 correspond to the plurality of screw holes 334 on the head 333 of the first rope winding member 33a, for a plurality of connecting elements 70 to pass through and assemble, implemented in this specification The connecting element 70 of the example is a screw member; the outer diameter of the first limiting member 40 is larger than the outer diameter of the first coiling member 33a, so that a first convex portion 42 is formed on the outer periphery thereof. A first concave ring portion 43 is provided on one side of a convex blocking portion 42, and the first concave ring portion 43 faces outward;

The second limiting member 50 is provided on the second rope winding member 33b, please refer to FIG. 5 and FIG. 6, the second limiting member 50 is a disc with a T-shaped cross section, and is provided on the disc body There are a plurality of screw holes 51, the plurality of screw holes 51 of the second limiting member 50 correspond to the plurality of screw holes 334 on the head 333 of the second rope winding member 33b, for a plurality of connecting elements 70 to pass through and assemble. The connecting element 70 in the embodiment of the specification is a screw; the outer diameter of the second protrusion 52 is larger than the outer diameter of the second rope winding member 33b, so that the second stopper 50 forms a second protrusion on the outer periphery 52. A second concave ring portion 53 is provided on one side of the second convex portion 52, and the second concave ring portion 53 faces inward and approaches the second rope winding member 33b; as can be seen from FIG. 3, the two The stop portions 42, 52 will interfere with each other.

The main structures of the first limiting member 40 and the second limiting member 50 are substantially the same, the only difference is that the first convex blocking part 42, the first concave ring part 43 and the second convex blocking part 52, the first The installation positions of the two concave ring portions 53 are reversed; in addition, the first and second limiting members 40, 50 each have a pivot hole 44, 54 and the wall of the pivot hole 44, 54 is provided with a shoulder 441 and 541 are provided for at least one first sleeve 80a and a second sleeve 80b respectively. The first and second sleeves 80a and 80b have the same structure, and each has a non-circular hole (such as a square hole) 81, The transmission rods 21 of the first and second driving devices 20a and 20b are respectively passed through. The first and second bushes 80a and 80b are respectively provided with a large head 82 with an enlarged outer diameter on one side thereof. The outer peripheral wall on the other side is convexly provided with at least one fin 83 and at least one slot 84. The outer diameters of the first and second sleeves 80a, 80b are larger than the diameters of the pivot holes 44, 54 by The gap of the slot 84 can be compressed and reduced, so that the first and second sleeves 80a, 80b can penetrate into the pivot holes 44, 54 of the first and second limiting members 40, 50, and The big head 82 bears against the shoulders 441, 541, and the fin 83 extends out of the pivot holes 44, 54 and expands outwards and presses against the outer wall of the edge of the pivot holes 44, 54; The first and second sleeves 80a, 80b are respectively provided for the transmission rods 21 of the first and second driving devices 20a, 20b to pivot; when the first rope winding member 33a rotates and moves out of the first rotating member 31a, so that When the first limiting member 40 moves toward the second limiting member 50 of the second rope winding member 33b, the first convex portion 42 of the first limiting member 40 will be affected by the second limiting member 50 The second convex stopper 52 stops to reach the displacement stop; when the second rope winding member 33b rotates and moves toward the second rotating member 31b, the second limiting member 50 moves toward the first rope winding member 33a When the first limiting member 40 is used, the second convex portion 52 of the second limiting member 50 will be blocked by the first convex portion 42 of the first limiting member 40. When the first and second limiting members 40 and 50 block each other, the first convex portion 42 moves into the second concave ring portion 53 of the second limiting member, and the second convex portion 52 moves into In the first concave ring portion 43 of the first stopper 40.

The two curtains 61, 62 are installed between the rail 10, the middle rail 63, and the lower rail 64, and are divided into an upper curtain 61 and a lower curtain 62 according to their positions. The upper and lower curtains 61, 62, Each 62 has a different shading effect and can be folded. For example, the shading effect of the upper curtain body 61 can be greater than that of the lower curtain body 62; wherein one end of the upper curtain body 61 is connected to the track 10, and the other end Connected to the middle rail 63, one end of the lower curtain body 62 is connected to the middle rail 63, and the other end is connected to the lower rail 64. Both the upper curtain body 61 and the lower curtain body 62 may be made of cloth materials or pleated curtains, or made of yarn materials. The first pull rope 34a can control the retracting of the lower rail 64 and the lower curtain body 62 when being unwound by the first rope winding member 33a; the second pulling rope 34b can be controlled by the second rope winding member 33b The middle rail 63 and the upper curtain body 61 are retractable. It should be noted that, in implementation, a curtain body may also be installed only between the rail, the middle rail and the lower rail, for example, a curtain body is installed between the rail and the middle rail, and the middle rail and the lower rail are connected Through the air, no curtain body is installed; or a curtain body is installed between the middle rail and the lower rail, and the curtain body is not installed between the rail and the middle rail.

The curtain composed of the above structure can wind up the upper and lower curtains respectively, and the first winding device 30a or the second driving device can be driven through the operating ropes 22a of the first driving device 20a on both sides of the track 10 The operating rope 22b of 20b drives the second winding device 30b, the first winding device 30a winds and unwinds the first pulling rope 34a, and the second winding device 30b winds and unwinds the second pulling rope 34b, and the adjustable The positions of the middle rail 63 and the lower rail 64 further cause the two lower curtain bodies 62 or the upper curtain bodies 61 with different shading coefficients to form different shading changes.

Please refer to FIGS. 2 and 7 to show that the first and second winding members 33a, 33b of the first winding device 30a and the second winding device 30b are moved into the first and second rotating members 31a, In the connecting groove 313 of 31b, the first and second pull cords 34a, 34b are all laid down. At this time, the middle rail 63 and the lower rail 64 are lowered to the lowest position, and the upper curtain 61 is shielded from light. If the curtain body is not installed between the rail 10 and the middle rail 63, the effect of completely transmitting light is exhibited. In the design of the present preferred embodiment, the first and second projections 42, 52 of the two actuating members 40, 50 are in contact with each other, and in the state of FIG. 2, the first actuating member 40 is subjected to the second actuating The piece 50 is blocked and cannot be moved outward, but the second actuator 50 can be moved outward, so the second retracting device 30b can be operated to move the middle rail 63.

Please refer to FIG. 8 and FIG. 9, when the operating rope 22b of the second driving device 20b is pulled, the transmission rod 21 of the second driving device 20b rotates and drives the second rotating member of the second retracting device 30b 31b rotates together with the second rope winding member 33b, the second rope winding member 33b moves out of the second rotating member 31b along the longitudinal direction of the track 10, and the second rope winding member 33b rotates and retracts the second pulling rope 34b. Move the middle rail 63 upward to retract the upper curtain body 61. FIGS. 8 and 9 show that the second winding member 33b is the second retractable rope 34b that is half retracted, the middle rail 63 is moved up half the height, and the upper cord 61 is partially folded. At this time, the upper and lower curtain bodies 61 , 62 shading. At the same time, the first limiting member 40 and the second limiting member 50 are separated, and are not locked with each other, so the two winding devices 30a and 30b can be operated.

10 and 11, the second winding device 33b of the second winding device 30b shows that the second drawstring 34b is retracted, and at this time, the middle rail 34a moves up to the highest position, and the upper curtain The body 61 is completely folded, and the curtain is shaded by the second curtain 62.

In the state of FIG. 10, the two limiting members 40 and 50 are not locked with each other, so the two winding devices 30 a and 30 b can be operated. FIGS. 12 and 13 show that the first winding member 33a of the first winding device 30a also retracts all the first pull ropes 34a. At this time, the middle rail 63 and the lower rail 64 both move up, and The lower curtain bodies 61 and 62 are all folded, and the curtain is not blocked at this time.

In the state of FIG. 12, the two limiting members 40 and 50 are stuck against each other. At this time, since the second limiting member 50 is blocked by the first limiting member 40, the second rope winding member 33b cannot be moved back to the second The second rotating member 31b, therefore, the second rope winding member cannot release the second drawstring 34b. When the first rope winding member 33a is to be moved into the first rotating member 31a, the first limiting member 40 is not blocked by the second limiting member 50, so the first winding device 30a can be rotated to make the first winding rope The member 33a moves toward the first rotating member 31a, and releases the first pull cord 34a to move the lower rail 64 downward. As shown in FIGS. 14 and 15, the first coiling member 33a releases the first pull cord 34a to make the lower rail 64 Move down the appropriate height. Once the first winding member 33a moves, the second limiting member 50 is no longer caught by the first limiting member 40, and the second winding member 33b can be rotated to release the second pulling rope 34b. Figures 14 and 15 also show that after the lower rail 64 is lowered, the middle rail 63 is also lowered. Figure 15 illustrates that the middle rail 63 and the lower rail 64 are both lowered by about half the height.

In addition, in the state of FIG. 14, the two winding devices 30a, 30b partially wind the first and second pulling ropes 34a, 34b (also partially releasing ropes), and the two limiting members 40, 50 are mutually At this time, the first rope winding member 33a can rotate and move in the direction of the first rotating member 31a, move back to the first rotating member, and release the first pulling rope 34a to lower the lower rail 64, but due to the first limit The member 40 is blocked by the second limiting member 50, and the first rope winding member 33a cannot move away from the first rotating member 31a.

Similarly, the second rope winding member 33b can rotate and move away from the direction of the second rotating member 31b, and wind up the second rope 34b to raise the middle rail 63, but the second limiting member 50 is subject to the first limitation The position member 40 stops, and the second rope winding member 33b cannot move in the direction of the second rotating member 31b.

The curtain structure provided by this creation can control the movement of the middle rail 63 and the lower rail 64 by the two winding devices 30a and 30b respectively to adjust the shading effect of the upper curtain body 61 and the lower curtain body 62. The blocking design of the pieces 40 and 50 has a foolproof effect, and the two winding devices 30a and 30b must be rotated in order to control the unfolding or folding of the upper and lower curtains 61 and 62 in order. Taking the state of FIG. 14 and FIG. 15 as an example, the middle rail 63 can be raised, but because the second limiter 50 is blocked by the first limiter 40, the middle rail cannot be lowered, and the lower rail 64 must be lowered first Then, the middle rail 63 can be lowered; and because the first limiter 40 is blocked by the second limiter 50, the lower rail 64 cannot be raised. The middle rail 63 must be raised first before the lower rail can be raised.

This creation is the first structure of the same kind of objects, and has a practical effect.

100: curtain structure 10: Orbit 11: bottom wall 12: Side wall 13: accommodating space 14: Support seat 141a: the first container 141b: Second tank 20: Drive 20a: first drive 20b: second drive 21: Transmission rod 22: Operating rope 22a: First operating rope 22b: Second operating rope 30: Winding device 30a: the first winding device 30b: Second winding device 31a: First rotating part 31b: Second rotating part 311: Limit ring 312: Hole 313: Receptacle 314: Rib 32a: the first screw connection 32b: second screw connection 321: screw hole 33a: The first piece of rope 33b: The second rope piece 331: External screw part 332: Long slot 333: head 334: screw hole 34a: The first drawstring 34b: Second drawstring 40: the first limit piece 41: screw hole 42: The first convex part 43: The first concave ring 44: pivot hole 441: Shoulder 50: second limit piece 51: screw hole 52: Second convex part 53: Second concave ring 54: pivot hole 541: Shoulder 61: upper curtain body 62: Lower curtain body 63: Middle rail 64: Lower track 70: connecting element 80a: first bushing 80b: second sleeve 81: non-circular hole 82: Big head 83: Wing 84: Slotted

In order to enable your reviewing committee to further understand the purpose, characteristics and effects of the creation, here is a preferred embodiment, which is explained in detail in conjunction with the drawings, among which: FIG. 1 is a perspective view of a curtain structure of a preferred embodiment applied to a curtain. FIG. 2 is a perspective view of a curtain structure of a preferred embodiment. FIG. 3 is a combined cross-sectional view of the two-winding device in FIG. 2. FIG. 4 is an exploded perspective view of the second winding device in FIG. 2. FIG. 5 is an exploded perspective view of the second winding device in FIG. 4. FIG. 6 is a schematic cross-sectional view of the winding device of FIG. 5. Fig. 7 shows a schematic diagram of the curtain in which the rope winding device of the present creation completely releases the pulling rope. FIG. 8 is a perspective view of a preferred embodiment of a rope winding device that partially retracts the drawstring and another rope winding device that fully releases the drawstring. FIG. 9 is a schematic diagram showing the retracted state of the curtain in FIG. 8. FIG. 10 is a perspective view of one of the preferred embodiments of the present invention in which a rope winding device winds up the entire pulling rope and another rope winding device releases the entire pulling rope. FIG. 11 is a schematic diagram showing the retracted state of the curtain in FIG. 10. FIG. 12 is a perspective view of the two rope winding devices of a preferred embodiment of the present invention releasing all the ropes. FIG. 13 is a schematic diagram showing the retracted state of the curtain in FIG. 12. FIG. 14 is a perspective view of the two rope winding devices of a preferred embodiment of the present invention, in which the rope is partially wound up. FIG. 15 is a schematic diagram showing the retracted state of the curtain in FIG. 14.

100: curtain structure

10: Orbit

11: bottom wall

12: Side wall

13: accommodating space

14: Support seat

20a: first drive

20b: second drive

21: Operation lever

22a: First operating rope

22b: Second operating rope

30a: the first winding device

30b: Second winding device

34a: The first drawstring

34b: Second drawstring

40: the first limit piece

42: The first convex part

50: second limit piece

52: Second convex part

Claims (10)

A curtain structure, including: A track is a long body with an accommodating space inside; A first and a second driving device are respectively provided at the two ends of the track, the first driving device has a first operating rope, and the second driving device has a second operating rope to control the first and second The operating rope can drive the first and second driving devices; A first and a second winding device are provided in the track, each having at least a first and at least a second rope winding member, at least a first and at least a second pulling rope, the first and the second winding The two winding devices are respectively located on the front side and the rear side of the accommodating space. The first driving device can drive the at least one first rope winding member of the first winding device to rotate to wind the at least one first rope. When at least one first rope winding member rotates, it is displaced along the longitudinal direction of the track; the second driving device can drive the at least one second rope winding member of the second winding device to rotate to unwind the at least one second rope, The at least one second rope winding member is also displaced along the longitudinal direction of the track when rotating; At least one first limiting member is disposed at one end of the at least one first rope winding member; at least one second limiting member is disposed at one end of the at least one second rope winding member, and the at least one first winding member rotates so that the at least one When a first limiting member is displaced toward the at least one second limiting member, the at least one first limiting member can be blocked by the at least one second limiting member; the at least one second rope winding member rotates so that the When at least one second limiting member is displaced toward the at least one first limiting member, the at least one second limiting member can be blocked by the at least one first limiting member. The curtain structure according to claim 1, wherein: the at least one first limiting member has a first convex stop portion, an outer diameter of the first convex stop portion is greater than an outer diameter of the first rope winding member; the at least A second limiting member has a second convex blocking portion, the outer diameter of the second convex blocking portion is greater than the outer diameter of the second rope winding element; the at least one first limiting element and the at least one second limiting position When the component is displaced, the first convex blocking part and the second convex blocking part will be mutually locked. The curtain structure according to claim 2, wherein: the first limiter is a disc, the outer periphery of which forms the first convex stop; the second limiter is also a disc, the outer periphery of which forms the first Two convex stop. The curtain structure according to claim 3, wherein: the first limiting member is a disc with an inverted T-shaped cross section, and a first concave ring portion is provided on one side of the first convex stop portion; the second The limiting member is a T-shaped disc, and a second concave ring portion is provided on one side of the second convex blocking portion. When the first limiting member and the second limiting member block each other, the first A convex blocking portion and the second convex blocking portion are respectively located in the second concave ring portion and the first concave ring portion. The curtain structure according to any one of claims 1 to 4, wherein each of the at least one first and the at least one second coiling member is provided with a head, the at least one first and the at least one second limit The positioning members are respectively connected to the heads of the at least one first and second rope winding members. The curtain structure according to claim 1, wherein: at least one supporting seat is provided in the accommodating space, each of the at least one supporting seat has a first accommodating groove and a second accommodating groove; the first winding device further At least one first rotating member is disposed in the first receiving slot of the at least one support base, and each first rotating member is driven by the first driving device to be in the first receiving slot of each supporting base Inner rotation; the second rewinding device further has at least one second rotating member disposed in the second receiving slot of the at least one support base, each second rotating member is driven by the second driving device to The second accommodating groove of each supporting base rotates; the at least one first rope winding member is disposed in the at least one first rotating member, and can be rotated relative to the at least one first rotating member to move out or move back to the The first rotating member; the at least one second rope winding member is disposed in the at least one second rotating member, and can move relative to the at least one second rotating member to move out or move back to the second rotating member. The curtain structure according to claim 6, wherein: the at least one first and second rotating members are provided with a limiting ring on each outer ring to limit the first and second receiving grooves of the at least one support seat, A contact hole is formed on one side of each of the at least one first and second rotating parts respectively for the transmission rods of the first and second driving devices to pass through; each of the at least one first and second rotating parts is provided with a recess The connecting grooves are respectively provided for accommodating the at least one first and second rope winding members, and at least one rib is protruded in the groove wall of each connecting groove; at least one first and at least one second screw connection piece are respectively limited to the The first and second accommodating grooves of the at least one support base, each of the at least one first and second screw connection piece is provided with a screw hole to be generally presented with the connection groove of the at least one first and second rotating member Coincide; the outer side of the at least one first and second rope winding members are provided with an outer screw portion and at least one long groove, the outer screw portion is screwed on the screw hole of the screw connection piece, the long groove is embedded by the rib . The curtain structure according to claim 7, wherein: each of the first and second limit members has a pivot hole for at least one of the first and second shaft sleeves, and the first and second shaft sleeves are respectively A non-circular hole is provided for the transmission rods of the first and second driving devices to pass through respectively, and the at least one first and second shaft sleeves are used for the transmission rods of the first and second driving devices to penetrate and pivot It is driven to rotate relative to the at least one first and second limiting members in the pivot hole. The curtain structure according to claim 8, wherein: the hole walls of the pivot holes provided by the first and second limiting members are respectively provided with a shoulder, and the first and second shaft sleeves are respectively on one side A large head is provided, and the outer peripheral wall on the other side is convexly provided with at least one fin and at least one slot, the outer diameter of the at least one first and second sleeves is larger than the diameter of the pivot hole, the At least one of the first and second sleeves can be reduced by the gap of the at least one slot, and penetrates through the pivot hole of the at least one of the first and second limiting members, and is resisted by the large head The at least one wing extends out of the pivot hole and extends outwards against the outer wall of the edge of the pivot hole. The curtain structure according to claim 1, further comprising: a middle rail and a lower rail; one end of the first drawstring is connected to the first retracting device, and the other end of the first pull-out cable passes through the rail and connects to the lower rail, When the first pull rope is unwound, it can control the lifting of the lower rail; one end of the second pull rope is connected to the second retracting device, and the other end of the second pull rope passes through the rail to connect to the middle rail, and the second The middle rail can be controlled to rise and fall when the rope is unwound.

Images