CN220469745U - Ceiling curtain driving device with synchronous winding and unwinding ropes and ceiling curtain - Google Patents

Abstract

The utility model belongs to the technical field of ceiling curtains, and particularly relates to a ceiling curtain driving device with synchronous winding and unwinding ropes and a ceiling curtain. Comprises a fixed seat and a rope rolling piece which is arranged on the fixed seat and can rotate relative to the fixed seat; the anti-falling rope is further wound on the rope winding piece, the rope outlet is further formed in the fixing base, the rope winding piece rotates relative to the fixing base to enable the anti-falling rope to be wound and unwound, and meanwhile the rope winding piece can move axially relative to the fixing base, so that the relative position of the anti-falling rope from the separation point to the rope outlet is basically unchanged. The winding mode of the anti-falling rope is winding along the surface of the rope winding part, so that the size of the rope winding part can be greatly optimized, the assembly and the disassembly in a narrow space are convenient, in addition, the axial movement of the rope winding part is realized while the rope winding part rotates, the rope outlet position is kept unchanged basically, the speed error of winding and unwinding of the anti-falling rope and the movement of a curtain body is reduced, and the synchronous effect is further realized.

Description

Ceiling curtain driving device with synchronous winding and unwinding ropes and ceiling curtain

Technical Field

The utility model belongs to the technical field of ceiling curtains, and particularly relates to a ceiling curtain driving device with synchronous winding and unwinding ropes and a ceiling curtain with the same.

Background

The electric awning curtain is mainly an electric curtain sunshade system applied to a skylight, and is especially used in scenes with roofs such as sunlight rooms and the like, which need sunshade and switching on.

The curtain body of the general ceiling curtain among the prior art uses comparatively soft honeycomb curtain or lily curtain, along with the size increase of curtain body width, the curtain body is heavy because of weight, all drop easily when expanding or receipts, in order to prevent the curtain body whereabouts, the support structure that keeps the curtain body not to drop is mainly increased in frame or curtain body to the ceiling curtain at present, the rope piece that current anti-falling support structure adopted is simple to roll up the rope, because the process cotton rope of roll up twines gradually at the rope piece surface, the rope piece needs to set up the wire casing and accomodate it, it can lead to the external diameter size of rope piece great, it is convenient for its assembly and disassembly to reserve great space, be unfavorable for the holistic size optimization of ceiling curtain, moreover, the mode that sets up ordinary wire casing can lead to the disengaging point of cotton rope unstable, influence the synchronism of cotton rope receive and release and curtain body removal to a certain extent, lead to the anti-falling effect poor.

Disclosure of Invention

The utility model aims to provide a ceiling curtain driving device with synchronous winding and unwinding ropes, which can keep winding and unwinding of anti-falling ropes and movement of a curtain body more synchronous so as to keep an anti-falling effect.

Based on the above, the utility model provides a ceiling curtain driving device with synchronous winding and unwinding ropes, which comprises a driving component, a first transmission box, a second transmission box, a left transmission component, a right transmission component and a curtain body traction clamp;

the left transmission assembly comprises a left synchronous belt, left transmission teeth which are arranged in the first transmission box and meshed with the left synchronous belt for transmission, and a left moving seat which is arranged on the left synchronous belt and connected with the curtain body traction clamp, the right transmission assembly comprises a right synchronous belt, right transmission teeth which are arranged in the second transmission box and meshed with the right synchronous belt for transmission, and a right moving seat which is arranged on the right synchronous belt and connected with the curtain body traction clamp, and the curtain body traction clamp is used for being connected at the tail end of a curtain body;

the driving assembly is in transmission butt joint with the first transmission box and the second transmission box and is used for driving the left transmission assembly and the right transmission assembly to act so that the curtain body traction clamp drives the curtain body to move;

the anti-falling rope winding device comprises a fixing seat, a rope winding piece and a rope winding piece, wherein the rope winding piece is arranged on the fixing seat and can rotate relative to the fixing seat, an anti-falling rope is wound on the rope winding piece, a rope outlet is further formed in the fixing seat, one end of the anti-falling rope penetrates into a curtain body through the rope outlet and is connected with a curtain body traction clamp, and the rope winding piece rotates relative to the fixing seat so that the anti-falling rope can move axially relative to the fixing seat while being wound and unwound, so that the relative position of the anti-falling rope from a separation point to the rope outlet is basically unchanged;

wherein the disengagement point refers to a position where the anti-falling rope is disengaged from the rope winding piece.

In the ceiling curtain driving device with the synchronous winding and unwinding ropes, the outer diameter of the rope winding piece is basically consistent with the outer diameters of the left transmission tooth and the right transmission tooth, so that the linear speed of winding and unwinding the anti-falling rope by the rope winding piece is consistent with the moving speed of the curtain body traction clamp.

In the driving device for the ceiling curtain with the synchronous winding and unwinding ropes, the rope winding piece is long and cylindrical, and the anti-falling rope is wound on the periphery of the rope winding piece.

According to the ceiling curtain driving device with the synchronous winding and unwinding ropes, the mounting opening through which the rope winding piece passes is formed in the fixing seat, the threads extending along the axial direction are formed in the periphery of the rope winding piece, the threaded portions matched with the threads on the periphery of the rope winding piece are formed in the inner wall of the mounting opening, and the rope winding piece moves towards the axial direction synchronously through the matching with the threaded portions when rotating.

In the driving device for the ceiling curtain with the synchronous winding and unwinding ropes, the spiral grooves are formed on the periphery of the rope winding piece in a threaded mode, and the anti-falling ropes are wound along the spiral grooves.

The driving assembly is connected with the second transmission box through the first transmission part, the middle part of the rope rolling part is provided with the shaft holes penetrating through the two ends along the axial direction of the rope rolling part, the shaft holes are internally provided with the transmission connecting parts, and the first transmission part penetrates through the transmission connecting parts so that the driving assembly drives the curtain body traction clamp to move and simultaneously drives the rope rolling part to rotate.

The ceiling curtain driving device with the synchronous winding and unwinding ropes comprises the tensioning assembly, the tensioning assembly comprises the connecting seat and the elastic piece arranged on the connecting seat, the end part of the anti-falling rope is connected to the elastic piece, the rope winding piece is used for being connected with the driving assembly to enable the anti-falling rope to be wound and unwound, and the tensioning assembly is used for enabling the anti-falling rope to be kept in a straightened state in the curtain body.

The ceiling curtain driving device with the synchronous winding and unwinding ropes is characterized in that the connecting seat is perpendicular to the moving direction of the curtain body, and the two sides of the connecting seat are provided with the first lugs and the second lugs which are bent towards the moving direction of the curtain body.

The ceiling curtain driving device with the synchronous winding and unwinding ropes is characterized in that the first lugs are further provided with notches, and the anti-falling ropes extend in the curtain body and along the moving direction of the curtain body and are bent from the notches of the first lugs to the connecting seat to be connected with the elastic piece.

The utility model also provides a ceiling curtain, which comprises a front frame, a rear frame, a left guide rail frame and a right guide rail frame, wherein the left guide rail frame and the right guide rail frame are respectively connected to two sides of the front frame and the rear frame to form a ceiling curtain frame, and the ceiling curtain frame is provided with the anti-falling retaining mechanism capable of being synchronously retracted and released.

The embodiment of the utility model has the following beneficial effects:

1. the utility model provides a ceiling curtain driving device with synchronous winding and unwinding ropes, wherein a curtain body is driven by a curtain body traction clamp to be unfolded or folded, a driving assembly can directly drive the curtain body traction clamp to move through transmission assemblies at two sides, an anti-falling retaining mechanism penetrates into the curtain body through the anti-falling ropes and is connected to the curtain body traction clamp, when the driving assembly of the ceiling curtain drives the traction clamp to move, rope rolling pieces of the anti-falling ropes synchronously rotate, so that the anti-falling ropes can be automatically wound along with the movement of the curtain body, and in addition, the winding mode of the anti-falling ropes is wound along the surface of the rope rolling pieces, and is different from the prior art in that the anti-falling ropes are wound on the surface of the rope rolling pieces in a single layer mode.

2. The utility model also provides a ceiling curtain which adopts the anti-falling retaining mechanism capable of being synchronously retracted and released, so that the ceiling curtain has the same beneficial effects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a driving device for a ceiling curtain with a synchronized retraction of cords in accordance with the present utility model;

FIG. 2 is a schematic view of a fall arrest retention mechanism;

FIG. 3 is a schematic view of the tensioning assembly of FIG. 2;

FIG. 4 is a schematic structural view of the fall arrest holding mechanism;

FIG. 5 is a schematic view of the other view of FIG. 4;

FIG. 6 is a schematic view of the rope reel of FIG. 4;

FIG. 7 is a schematic view of the structure of the fall arrest holding mechanism after installation;

FIG. 8 is a schematic structural view of a fixing base;

fig. 9 is an exploded view of the roof curtain.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 8, there is provided a driving device for a ceiling curtain having a synchronous winding and unwinding rope, characterized by comprising a driving assembly 3, a first transmission case 4, a second transmission case 5, a left transmission assembly, a right transmission assembly, and a curtain traction clamp 191; the left transmission assembly comprises a left synchronous belt 131, left transmission teeth 132 which are arranged in the first transmission case 4 and meshed with the left synchronous belt 131 for transmission, and a left movable seat 133 which is arranged on the left synchronous belt 131 and connected with the curtain traction clamp 191, the right transmission assembly comprises a right synchronous belt 141, right transmission teeth 142 which are arranged in the second transmission case 5 and meshed with the right synchronous belt 141 for transmission, and a right movable seat 143 which is arranged on the right synchronous belt 141 and connected with the curtain traction clamp 191, and the curtain traction clamp 191 is used for being connected with the tail end of a curtain 19; the driving assembly 3 is in transmission butt joint with the first transmission case 4 and the second transmission case 5, and is used for driving the left transmission assembly and the right transmission assembly to act so that the curtain body traction clamp 191 drives the curtain body 19 to move. The curtain body is driven to be unfolded or folded through the curtain body traction clamp, and the driving assembly is connected with the left transmission box and the right transmission box on two sides to drive the left synchronous belt and the right synchronous belt to move, so that the curtain body traction clamp connected to the synchronous belt through the moving seat can move.

In addition, the embodiment of the utility model further comprises a fixing seat 61 and a rope rolling piece 62 which is arranged on the fixing seat 61 and can rotate relative to the fixing seat 61, wherein an anti-falling rope 63 is further wound on the rope rolling piece 62, a rope outlet 611 is further arranged on the fixing seat 61, one end of the anti-falling rope 63 penetrates into the curtain 19 through the rope outlet 611 and is connected with a curtain traction clamp 191, the rope rolling piece 62 rotates relative to the fixing seat 61 to enable the anti-falling rope 63 to be wound and unwound, and meanwhile, the rope rolling piece 62 can move relative to the fixing seat 61 along the axial direction, so that the relative position of the anti-falling rope 63 from a separation point to the rope outlet 611 is basically unchanged; wherein the release point refers to a position where the fall preventing string 63 is released from the string winding member 62. The winding mode of the anti-falling rope is that the anti-falling rope is wound along the surface of the rope winding part, and the anti-falling rope is different from the existing anti-falling rope in that the anti-falling rope is wound in a single layer and is wound on the surface of the rope winding part, so that the size of the rope winding part can be greatly optimized, the assembly and the disassembly in a narrow space are convenient, in addition, the axial movement of the rope winding part is realized while the rope winding part rotates, the rope outlet position is kept basically unchanged, the speed error of winding and unwinding of the anti-falling rope and the movement of a curtain body is reduced, and the synchronous effect is further realized.

In the embodiment of the present utility model, the synchronization between the retraction speed of the anti-falling rope 63 and the moving speed of the curtain body is improved by keeping the relative position of the anti-falling rope 63 from the release point to the rope outlet 611 substantially unchanged, which means that the anti-falling rope 63 can be kept unchanged by limiting the release position of the anti-falling rope 63 from the rope winding member.

Specifically, in the embodiment of the present utility model, the rope reel 62 has a long cylindrical shape, and the fall preventing rope 63 is wound around the outer circumference of the rope reel 62. The biggest benefit is that the anti-falling rope 63 is wound on the surface of the rope winding piece 62 only after being wound, and a baffle plate is not required to be added on two sides like the existing rope winding piece to form a wire slot, so that the outer diameter size of the rope winding piece 62 can be smaller, and the assembly and the use in a narrow space are convenient.

In the embodiment of the present utility model, the axial movement of the rope winding member 62 may be achieved by simple screw engagement, the fixing seat 61 is provided with a mounting hole 6101 through which the rope winding member 62 passes, the outer periphery of the rope winding member 62 is provided with a screw extending in the axial direction, the inner wall of the mounting hole 6101 is provided with a screw portion that is screw engaged with the outer periphery of the rope winding member 62, and the rope winding member 62 moves in the axial direction synchronously by engaging with the screw portion when rotating. The anti-falling rope 63 is axially moved through the threaded matching structure while being wound and unwound by the rope winding member, and the axial moving direction can be controlled according to the steering difference of the anti-falling rope 63, so that the relative position from the separation point to the rope outlet 611 can be kept basically unchanged all the time.

Optimally, in the embodiment of the present utility model, the outer circumference of the rope winding member 62 is threaded to form a spiral groove, and the fall preventing rope 63 is wound along the spiral groove. The anti-falling rope device can not only be matched with the threaded matching part to realize the axial movement of the rope rolling piece 62, but also be used as a groove for limiting the anti-falling rope 63, so that the position of the anti-falling rope 63 after being wound can be kept, the relative position of the anti-falling rope 63 from the separation point to the rope outlet 611 can be kept unchanged basically, and the anti-falling effect is further improved.

To make the structure simpler, in the embodiment of the present utility model, the driving of the cord rolling member 62 and the driving of the movement of the curtain are the same set of driving components. The driving assembly is used for being connected with the transmission case and is also connected with the rope winding piece, and the specific structure is that the driving assembly 3 is connected with the second transmission case 5 through a first transmission piece 39, a shaft hole 6201 penetrating through two ends along the axial direction of the rope winding piece 62 is arranged in the middle of the rope winding piece 62, a transmission connecting portion 621 is arranged in the shaft hole 6201, and the first transmission piece 39 penetrates through the transmission connecting portion 621 so that the driving assembly 3 drives the curtain traction clamp 191 to move and simultaneously drives the rope winding piece 62 to rotate. The winding part is ensured to retract the anti-falling rope 63 along with the forward and reverse rotation of the motor, so that the anti-falling rope is consistent with the unfolding and retraction of the curtain body, and the anti-falling rope is simple in structure and convenient to install and use. The outer diameter of the rope winding member 62 is substantially identical to the outer diameters of the left and right driving teeth 132 and 142 so that the linear speed of the rope winding member 62 for winding and unwinding the fall preventing rope 63 is identical to the moving speed of the curtain traction grip 191. In this embodiment, the outer diameter is substantially the same as the outer circumference of the rope winding member 62, the left driving tooth 132 and the right driving tooth 142 contacted with the synchronous belt, so as to ensure that the outer circumferences have the same linear velocity when the three rotate at the same speed, and the rope winding and unwinding speed is kept consistent with the moving speed of the curtain 19. Of course, since the rope winding member 62 has a rope winding groove or a thread groove for the anti-falling rope 63 to be inserted therein, the outer diameter thereof is substantially uniform, and the diameter of the rope winding groove or the thread groove is not the diameter of the outermost side of the rope winding member 62 (i.e., the height of the groove wall is not calculated)

The transmission connection portion 621 is a polygonal hole, and the outer peripheral surface of the first transmission member 39 is a polygonal shape that mates with the transmission connection portion 621. The structure is simple, and the matching installation is convenient.

In the embodiment of the present utility model, the inner peripheral wall of the shaft hole 6201 near the end portion is provided with a rope fixing hole 6200 penetrating to the outer peripheral surface. The rope fixing hole 6200 facilitates fixing one end of the fall preventing rope 63 so that it can be wound on the outer circumferential surface of the rope reel 62 better.

In the embodiment of the present utility model, the rope fixing holes 6200 are formed in the two sides of the shaft hole 6201 near the end portions, and two rope outlets 611 are formed in the fixing seat 61. Because this scheme is through the drive assembly drive curtain body removal and the rotation of rope rolling member, and drive assembly 3 can install in one side of first transmission case 4, also can install in one side of second transmission case 5, is equivalent to according to the installation scene can be in the both sides of installing at fixing base 61. In order to adapt to the installation mode, the two rope outlets 611 and rope fixing holes 6200 are also arranged in the scheme, which can be understood as being symmetrically arranged on the fixed seat 61, so that the anti-falling rope 63 can be installed in different positions and in different directions of the driving assembly 3, and the rolling-up of the anti-falling rope 63 is consistent with the moving direction of the curtain body.

Specifically, the fixing base 61 is provided with an installation opening 6101 through which the rope winding member 62 passes, and two ends of the rope winding member 62 extend outwards from two sides of the installation opening 6101 after being installed, so that the two rope outlet 611 are also provided in the scheme to facilitate installation and use of the anti-falling rope 63. Specifically, since the rope winding member 62 is installed and then extends from two sides of the installation opening 6101, and the anti-falling rope 63 can only be wound on the rope winding member 62 exposed at the left side of the installation opening or the rope winding member 62 exposed at the right side of the installation opening, the rope outlet 611 through which the anti-falling rope 63 is pulled out is provided on two corresponding sides of the scheme, that is, one end of the anti-falling rope 63 is fixed on the rope fixing hole 6200 on the left side and the other end of the anti-falling rope 63 is pulled out from the rope outlet 611 near the left side, or one end of the anti-falling rope 63 is fixed on the rope fixing hole 6200 on the right side and the other end of the anti-falling rope 63 is pulled out from the rope outlet 611 near the right side.

In addition, in the embodiment of the present utility model, a connection bump 610 extending downward is further disposed at the bottom of the fixing seat 61. The connection bump 610 facilitates the fast installation of the fixing base 61, for example, in this embodiment, a plurality of holes may be formed in the front frame 11, which may be used for the falling-preventing rope 63 to pass through, or for the connection bump 610 to be snapped into installation.

In the embodiment of the present utility model, the rope reel 62 has a long cylindrical shape, and the anti-falling rope 63 is wound around the outer circumference of the rope reel 62. The structure is simple, and the installation and the use are convenient.

In the embodiment of the present utility model, the tension assembly 64 further includes a connection base 641 and an elastic member 642 disposed on the connection base 641, the end of the fall preventing wire 63 is connected to the elastic member 642, the wire winding member 62 is used for being connected to a driving assembly to wind and unwind the fall preventing wire 63, and the tension assembly 64 is used for keeping the fall preventing wire 63 in a straightened state in the curtain 19. The tensioning assembly is additionally connected to the curtain body traction clamp at the tail end of the anti-falling rope to enable the anti-falling rope to be kept in a straightened tensioning state, and the tensioning assembly is simple in structure and can be directly connected by utilizing the elastic effect of the elastic piece. In addition, the anti-falling rope is kept in a straightened and tensioned state through the elastic piece, so that the curtain body achieves the effect of preventing falling from loosening.

In addition, the elastic piece compensates the long and short errors generated during the manufacturing or installation of the anti-falling rope, so that the effect of automatic error compensation is achieved. The anti-falling rope is further kept in a stretched and tensioned state, and the elastic piece absorbs the winding and unwinding tension of the rope winding piece, so that good buffering and protecting effects can be achieved on the rope winding piece and the anti-falling rope.

In the embodiment of the utility model, the specific structure of the tensioning assembly is as follows: the connection seat 641 is perpendicular to the moving direction of the curtain body, and a first lug 6411 and a second lug 6412 bent towards the moving direction of the curtain body are arranged on two sides of the connection seat 641. One end of the falling preventing string 63 extends to the curtain traction grip 191 in the moving direction of the curtain and is folded toward one side of the connection seat 641 to be connected to the elastic member 642. Namely, the anti-falling rope 63 is arranged in an L shape, and the arrangement mode ensures that the anti-falling rope 63 can always keep a straight line section with the same moving direction as the curtain body, and the straight line section has the anti-falling effect of supporting the curtain body. In addition, the anti-falling rope 63 can be tensioned in advance when the anti-falling rope is convenient to install, and the direction of the compensation length of the anti-falling rope is positioned in the direction perpendicular to the moving direction of the curtain body, so that the anti-falling effect of the straight line section of the anti-falling rope is not affected.

Specifically, in the embodiment of the present utility model, one end of the elastic member 642 is connected to the second lug 6412 remote from the fall preventing string 63 and disposed along the length direction of the connection seat 641. The structure is simple, and the two bent first lugs 6411 and the two bent second lugs 6412 form a mounting connection structure, so that the elastic elements 642 can be conveniently assembled and the anti-falling rope 63 can be positioned and mounted.

In the embodiment of the present utility model, the first lug 6411 is further provided with a notch, and the anti-falling cord 63 extends in the curtain body and along the moving direction of the curtain body, and is bent from the notch of the first lug 6411 to the connecting seat 641 to be connected with the elastic member 642. In this embodiment, the elastic member 642 is a spring. The anti-falling rope 63 is simple in structure, and can be kept in a straightened and tensioned state, so that the anti-falling effect is improved.

As shown in fig. 9, the present utility model further provides a roof curtain, which includes a front frame 11, a rear frame 12, a left guide rail frame 13 and a right guide rail frame 14, wherein the left guide rail frame 13 and the right guide rail frame 14 are respectively connected to two sides of the front frame 11 and the rear frame 12 to form a roof curtain frame, and the roof curtain frame is provided with the anti-falling holding mechanism capable of being synchronously retracted and extended. The anti-falling retaining mechanism for synchronously folding and unfolding is adopted, so that the anti-falling retaining mechanism has the same beneficial effects.

The utility model provides a ceiling curtain driving device with synchronous winding and unwinding ropes, wherein a curtain body is driven by a curtain body traction clamp to be unfolded or folded, a driving assembly can directly drive the curtain body traction clamp to move through transmission assemblies at two sides, an anti-falling retaining mechanism penetrates into the curtain body through the anti-falling ropes and is connected to the curtain body traction clamp, when the driving assembly of the ceiling curtain drives the traction clamp to move, rope rolling pieces of the anti-falling ropes synchronously rotate, so that the anti-falling ropes can be automatically wound along with the movement of the curtain body, and in addition, the winding mode of the anti-falling ropes is wound along the surface of the rope rolling pieces, and is different from the prior art in that the anti-falling ropes are wound on the surface of the rope rolling pieces in a single layer mode.

It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model. Furthermore, references to orientations or positional relationships of the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc. are based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

While the foregoing is directed to the preferred embodiments of the present utility model, it should be noted that modifications and variations could be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and variations are to be regarded as being within the scope of the utility model.

Claims (10)

1. The ceiling curtain driving device with the synchronous winding and unwinding ropes is characterized by comprising a driving assembly (3), a first transmission box (4), a second transmission box (5), a left transmission assembly, a right transmission assembly and a curtain body traction clamp (191);

the left transmission assembly comprises a left synchronous belt (131), left transmission teeth (132) which are arranged in the first transmission box (4) and are in meshed transmission with the left synchronous belt (131), a left movable seat (133) which is arranged on the left synchronous belt (131) and is connected with the curtain body traction clamp (191), the right transmission assembly comprises a right synchronous belt (141), right transmission teeth (142) which are arranged in the second transmission box (5) and are in meshed transmission with the right synchronous belt (141), and right movable seats (143) which are arranged on the right synchronous belt (141) and are connected with the curtain body traction clamp (191), and the curtain body traction clamp (191) is used for being connected to the tail end of the curtain body (19);

the driving component (3) is in transmission butt joint with the first transmission box (4) and the second transmission box (5) and is used for driving the left transmission component and the right transmission component to act so that the curtain body traction clamp (191) drives the curtain body (19) to move;

the anti-falling rope device comprises a fixed seat (61) and a rope rolling piece (62) which is arranged on the fixed seat (61) and can rotate relative to the fixed seat (61), an anti-falling rope (63) is further wound on the rope rolling piece (62), a rope outlet (611) is further formed in the fixed seat (61), one end of the anti-falling rope (63) penetrates into a curtain body (19) through the rope outlet (611) and is connected with a curtain body traction clamp (191), the driving assembly (3) can further drive the rope rolling piece (62) to rotate, and the rope rolling piece (62) can move axially relative to the fixed seat (61) while rotating relative to the fixed seat (61) to enable the relative position of the anti-falling rope (63) from a separation point to the rope outlet (611) to be basically unchanged.

Wherein the release point is a position at which the fall preventing string (63) is released from the string winding member (62).

2. A driving device for a ceiling curtain with synchronized winding and unwinding of cords according to claim 1, wherein the outer diameter of the cord winding member (62) is substantially identical to the outer diameters of the left and right driving teeth (132, 142) so that the speed of winding and unwinding the fall preventing cord (63) by the cord winding member (62) is identical or substantially identical to the moving speed of the curtain pulling grip (191).

3. A driving device for a ceiling curtain with a synchronized winding and unwinding rope according to claim 1, characterized in that the rope winding member (62) is long cylindrical, and the fall preventing rope (63) is wound around the outer circumference of the rope winding member (62).

4. A driving device for a ceiling curtain with a synchronous winding and unwinding rope according to any one of claims 1 to 3, characterized in that the fixing base (61) is provided with a mounting opening (6101) for the rope winding member (62) to pass through, the periphery of the rope winding member (62) is provided with a thread extending along the axial direction, the inner wall of the mounting opening (6101) is provided with a thread portion in threaded engagement with the periphery of the rope winding member (62), and the rope winding member (62) moves synchronously to the axial direction by engaging with the thread portion when rotating.

5. A driving device for a ceiling curtain with a synchronized winding and unwinding rope according to claim 4, characterized in that the rope winding member (62) is screw-formed on its outer circumference with a spiral groove, along which the fall preventing rope (63) is wound.

6. A driving device for a ceiling curtain with a synchronous winding and unwinding rope according to any one of claims 1 to 3, characterized in that the driving assembly (3) is connected with the second transmission case (5) through a first transmission member (39), a shaft hole (6201) penetrating through two ends along the axial direction of the rope winding member (62) is arranged in the middle of the rope winding member, a transmission connection part (621) is arranged in the shaft hole (6201), and the first transmission member (39) penetrates through the transmission connection part (621) so that the driving assembly (3) drives the curtain body traction clamp (191) to move and simultaneously drives the rope winding member (62) to rotate.

7. A driving device for a ceiling curtain with a synchronized winding and unwinding rope according to claim 4, characterized in that it further comprises a tensioning assembly (64), said tensioning assembly (64) comprising a connecting seat (641) and an elastic member (642) provided on the connecting seat (641), the end of said anti-falling rope (63) being connected to said elastic member (642), said rope winding member (62) being adapted to be connected to a driving assembly for winding and unwinding said anti-falling rope (63), said tensioning assembly (64) being adapted to keep said anti-falling rope (63) in a straightened state inside the curtain (19).

8. The driving device for a ceiling curtain with a synchronous winding and unwinding rope according to claim 7, wherein the connection seat (641) is perpendicular to the moving direction of the curtain body, a first lug (6411) and a second lug (6412) which are bent towards the moving direction of the curtain body are arranged on two sides of the connection seat (641), and one end of the anti-falling rope (63) extends onto the curtain body traction clamp (191) along the moving direction of the curtain body and is folded towards one side of the connection seat (641) to be connected with the elastic piece (642).

9. The driving device for a ceiling curtain with a synchronous winding and unwinding rope according to claim 8, wherein the first lug (6411) is further provided with a notch, and the anti-falling rope (63) extends in the curtain body and along the moving direction of the curtain body, and is bent from the notch of the first lug (6411) to the connection seat (641) to be connected with the elastic member (642).

10. A roof curtain, characterized by comprising a front frame (11), a rear frame (12), a left guide rail frame (13) and a right guide rail frame (14), wherein the left guide rail frame (13) and the right guide rail frame (14) are respectively connected to two sides of the front frame (11) and the rear frame (12) to form a roof curtain frame, and the roof curtain frame is provided with the roof curtain driving device with the synchronous winding and unwinding ropes according to any one of claims 1-9.