CN215959343U - Connecting bridge component for curtain telescopic rail and curtain telescopic rail - Google Patents

Abstract

The utility model provides a connecting bridge component for a curtain telescopic rail and the curtain telescopic rail. A connecting bridge assembly for a curtain telescopic rail comprising: a connecting bridge main body; the steering piece is arranged on the connecting axle main body; and the locking accessory is connected with the connecting bridge main body so that the locking accessory has a locking state and an unlocking state, and when the locking accessory is in the locking state, at least one part of the connecting bridge component is pressed against the track of the curtain telescopic rail so that the connecting bridge component is locked with the track. The utility model solves the problem that the length of the curtain telescopic rail is inconvenient to adjust in the prior art.

Description

Connecting bridge component for curtain telescopic rail and curtain telescopic rail

Technical Field

The utility model relates to the technical field of curtains, in particular to a connecting bridge component for a curtain telescopic rail and the curtain telescopic rail.

Background

Present electric window curtain track is mostly a word rail, and the user need measure in advance and provide measured data before the mounting rail and let the supplier carry out the track customization, and the track of customization is the track of non-adjustable length, still needs the secondary equipment after the user takes the track, and such operation is not only time-consuming, also can increase the cost of labor simultaneously in a large number, still has to measure the risk that leads to secondary operation inaccurately. Therefore, a telescopic adjustable electric curtain rail appears in the market, so that the curtain rail is more convenient to use.

The connecting piece of the electric curtain rail connecting the two telescopic rails plays a role in steering the synchronous belt, and needs to be fixed and fixed after the two telescopic rails move relatively, so that the length of the electric curtain rail can be adjusted as required. The existing connecting piece generally adopts a screw fixing mode, so that the fixing and the fixing releasing of the connecting piece are very inconvenient, the length adjustment of the electric curtain rail is further inconvenient, and the user experience is greatly influenced.

From the above, the problem that the length of the telescopic rail of the curtain is inconvenient to adjust exists in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a connecting bridge component for a curtain telescopic rail and the curtain telescopic rail, so as to solve the problem that the length of the curtain telescopic rail is inconvenient to adjust in the prior art.

To achieve the above object, according to one aspect of the present invention, there is provided a connecting bridge assembly for a curtain telescopic rail, comprising: a connecting bridge main body; the steering piece is arranged on the connecting axle main body; and the locking accessory is connected with the connecting bridge main body so that the locking accessory has a locking state and an unlocking state, and when the locking accessory is in the locking state, at least one part of the connecting bridge component is pressed against the track of the curtain telescopic rail so that the connecting bridge component is locked with the track.

Further, the steering member includes: the two ends of the rotating pin are connected with the connecting bridge main body; the rotating piece is sleeved on the rotating pin and can rotate around the axial direction of the rotating pin.

Further, the connecting bridge body includes: a bridge cover; the bridge seat, enclose into the holding region between bridge lid and the bridge seat, the steering piece sets up in the holding region.

Further, the bridge lid forms first breach portion including setting up two first connecting blocks at bridge lid both ends between two first connecting blocks, and the bridge seat forms second breach portion including setting up two second connecting blocks at bridge seat both ends between two second connecting blocks, and two first connecting blocks correspond the setting with two second connecting blocks and are connected with difference detachably, and first breach portion and second breach portion constitute the holding region.

Furthermore, one end of the locking accessory is a rotating part, the rotating part is rotatably connected with the bridge seat, the rotating part is provided with a cam structure, and when the locking accessory is in a locking state, the cam structure is abutted against the track; when the lock attachment is in the unlocked state, the cam structure is released from abutment with the track.

Further, one side of the bridge seat, which is far away from the bridge cover, is provided with a third notch portion, and when the locking piece is in a locking state, one end, which is far away from the rotating portion, of the locking piece is accommodated in the third notch portion.

Furthermore, the number of the locking accessories is two, the two ends of the bridge seat are respectively provided with a rotating concave part, and the rotating parts of the two locking accessories are respectively accommodated in the rotating concave parts.

Furthermore, the bridge seat is provided with a sliding groove penetrating through the bridge seat, the locking accessory is accommodated in the sliding groove and can slide along the sliding groove, the distance between the groove bottom of the sliding groove and the track of the curtain telescopic rail is gradually reduced from the first end to the second end of the bridge seat, and the locking accessory slides from the first end to the second end so as to compress the track of the curtain telescopic rail.

Further, the steering members are two and arranged at intervals, and the connecting bridge main body is provided with a separation structure for separating the two steering members.

According to another aspect of the present invention, there is provided a window covering telescopic rail comprising: a track; the connecting bridge component for the curtain telescopic rail is adjustably connected with the rail; and the synchronous belt is wound between the track and the connecting bridge assembly.

Further, the track comprises: the first guide rail comprises a first transmission piece and a second transmission piece, and the first transmission piece and the second transmission piece are respectively arranged at two ends of the first guide rail; the second guide rail, the second guide rail includes third driving medium and fourth driving medium, third driving medium and fourth driving medium set up respectively at the both ends of second guide rail, first driving medium and second guide rail swing joint, third driving medium and first guide rail swing joint, so that the position is connected adjustably between first guide rail and the second guide rail, connect the bridge subassembly respectively with first guide rail and second guide rail swing joint, and set up between first driving medium and third driving medium, the hold-in range is around passing through in proper order between first driving medium, the second driving medium, connect the bridge subassembly, between third driving medium and the fourth driving medium.

Furthermore, one side of the tops of the first guide rail and the second guide rail, which is close to the connecting bridge assembly, is provided with a first moving groove respectively, at least one part of two sides of the bridge cover of the connecting bridge main body extends into the two first moving grooves, one side of the bottoms of the first guide rail and the second guide rail, which is close to the connecting bridge assembly, is provided with a second moving groove respectively, and at least one part of two sides of the bridge seat of the connecting bridge main body extends into the two second moving grooves, so that the connecting bridge assembly is movably connected with the first guide rail and the second guide rail respectively.

By applying the technical scheme of the utility model, the connecting bridge component for the curtain telescopic rail comprises a connecting bridge main body, a steering component and a locking accessory, wherein the steering component is arranged on the connecting bridge main body, the locking accessory is connected with the connecting bridge main body so as to enable the locking accessory to have a locking state and an unlocking state, when the locking accessory is in the locking state, at least one part of the connecting bridge component is pressed against the track of the curtain telescopic rail so as to enable the connecting bridge component to be locked with the track, thus the locking accessory is conveniently switched between the locking state and the unlocking state so as to enable the locking accessory to be pressed against or released from pressing against the track, when the locking accessory is released from pressing against the track, the connecting bridge component can freely move on the track of the curtain telescopic rail, when the connecting bridge component moves to a target position, the locking accessory is pressed against the track, the curtain telescopic rail is adjusted to a proper length, so that the length of the curtain telescopic rail can be freely and conveniently adjusted, solves the problem of inconvenient length adjustment of the curtain telescopic rail in the prior art.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 illustrates an exploded view of a connecting bridge assembly in an exemplary embodiment of the utility model;

FIG. 2 shows a schematic structural diagram of a bridge deck in an embodiment of the utility model;

FIG. 3 shows a schematic structural view of a bridge seat in an embodiment of the utility model;

FIG. 4 illustrates a schematic structural view of a lock attachment in an embodiment of the present invention;

FIG. 5 is a schematic view of the construction of a telescopic curtain rail according to an embodiment of the present invention;

fig. 6 shows a partial enlarged view at a in fig. 5;

fig. 7 shows a cross-sectional view of a curtain telescopic rail at a connecting bridge assembly in an embodiment of the utility model.

Wherein the figures include the following reference numerals:

10. a connecting bridge main body; 11. a bridge cover; 111. a first connection block; 112. a first notch portion; 12. a bridge seat; 121. a second connecting block; 122. a second notch portion; 123. a third notch portion; 20. a steering member; 21. a rotation pin; 22. a rotating member; 30. a lock attachment; 31. a rotating part; 311. a cam structure; 40. a partition structure; 50. connecting the bridge component; 60. a synchronous belt; 70. a first guide rail; 80. a second guide rail; 90. a first transmission member; 100. a second transmission member; 110. a third transmission member; 120. a fourth transmission member; 130. a first moving slot; 140. a second moving groove.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the utility model.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the problem that the length of the curtain telescopic rail is inconvenient to adjust in the prior art, the utility model provides a connecting bridge component for the curtain telescopic rail and the curtain telescopic rail. The curtain telescopic rail comprises a connecting bridge component for the curtain telescopic rail.

As shown in fig. 1 and 7, the connecting bridge assembly for the telescopic rail of the window covering includes a connecting bridge body 10, a steering member 20, and a locking attachment 30. The steering member 20 is provided on the connecting axle body 10. The locking attachment 30 is coupled with the bridge body 10 such that the locking attachment 30 has a locked state and an unlocked state, and when the locking attachment 30 is in the locked state, at least a portion of the bridge assembly is pressed against the rail of the telescopic rail of the window covering to lock the bridge assembly with the rail.

The connecting bridge component for the curtain telescopic rail comprises a connecting bridge main body 10, a steering component 20 and a locking accessory 30, wherein the steering component 20 is arranged on the connecting bridge main body 10, the locking accessory 30 is connected with the connecting bridge main body 10 so that the locking accessory 30 has a locking state and an unlocking state, when the locking accessory 30 is in the locking state, at least one part of the connecting bridge component is pressed against the track of the curtain telescopic rail so as to lock the connecting bridge component with the track, thus the locking accessory 30 is conveniently switched between the locking state and the unlocking state so that the locking accessory 30 is pressed against or released from the track, when the locking accessory 30 is released from the track, the connecting bridge component can freely move on the track of the curtain telescopic rail, when the connecting bridge component moves to a target position, the locking accessory 30 is pressed against the track, the curtain telescopic rail is adjusted to a proper length, so that the length of the curtain telescopic rail can be freely and conveniently adjusted, the user experience is greatly improved.

As shown in fig. 1 to 3 and 7, the connecting bridge body 10 includes a bridge cover 11 and a bridge seat 12. The bridge deck 11 and the bridge base 12 define a receiving area therebetween, and the steering member 20 is disposed in the receiving area.

As shown in fig. 2 to 3, the bridge cover 11 includes two first connection blocks 111 disposed at both ends of the bridge cover 11, and a first notch portion 112 is formed between the two first connection blocks 111. The bridge base 12 includes two second connection blocks 121 disposed at both ends of the bridge base 12, and a second gap portion 122 is formed between the two second connection blocks 121. The two first connection blocks 111 and the two second connection blocks 121 are disposed correspondingly and detachably connected, respectively, and the first notch portion 112 and the second notch portion 122 constitute an accommodation area.

As shown in fig. 1, the steering member 20 includes a rotation pin 21 and a rotation member 22. Both ends of the rotation pin 21 are connected to the connecting bridge main body 10. The rotating member 22 is fitted over the rotating pin 21 and can rotate around the axial direction of the rotating pin 21. In the present embodiment, the rotary member 22 is a needle bearing. The two ends of the rotation pin 21 are connection ends, and the middle of the rotation pin 21 is a connection section rotatably connected with a needle bearing, and the needle bearing can freely rotate on the connection section of the rotation pin 21. The bridge cover 11 and the bridge base 12 are disposed vertically up and down. Fixing holes are respectively formed in the bridge cover 11 and the bridge base 12, and two ends of the rotating pin 21 respectively extend into the fixing holes so as to be vertically fixed in the accommodating area.

As shown in fig. 1 and 3, the steering members 20 are two and spaced apart from each other. The bridge body 10 has a partition structure 40 for partitioning the two steering members 20. In particular, the partition structure 40 is a rib. The convex rib extends to the bridge lid 11 by the bridge seat 12, and the convex rib is connected back convex rib and the bridge lid 11 butt with the bridge seat 12 to the bridge lid 11. The convex rib is arranged in the middle of the accommodating area. Through setting up the partition structure 40 and dividing the accommodation region into two subregions, two steering pieces 20 are accommodated respectively in two subregions for two steering pieces 20 do not influence each other, avoid around the hold-in range 60 of one steering piece 20 and another steering piece 20 contact or with around the hold-in range 60 of another steering piece 20 contact even twine together. Through setting up two steering spare 20, can realize 360 of hold-in range 60 and turn to for the track of (window) curtain telescopic rail can realize stretching out and drawing back, thereby adjusts holistic length.

In the present embodiment, the locking attachment 30 is rotatably connected to the bridge body 10. As shown in fig. 4, one end of the locking attachment 30 is a turning portion 31. The rotating portion 31 is rotatably connected to the bridge seat 12, and the rotating portion 31 has a cam structure 311. When the locking attachment 30 is in the locked condition, the cam structure 311 abuts the track, thereby compressing the bridge assembly against the track. When the lock attachment 30 is in the unlocked state, the cam structure 311 is disengaged from the track and the bridge assembly can move on the track.

In this embodiment, there are two locking attachments 30, and two ends of the bridge seat 12 are respectively provided with a rotation recess, and the rotation portions 31 of the two locking attachments 30 are respectively accommodated in the rotation recesses. Specifically, the rotating portion 31 has a through hole therethrough, the rotating recess has a through hole corresponding to the rotating portion 31, and the elastic pin sequentially passes through the rotating recess and the through hole of the rotating portion 31, thereby achieving the rotating connection of the rotating portion 31 and the bridge seat 12.

As shown in fig. 3, a side of the bridge seat 12 away from the bridge cover 11 has a third notch 123. When the lock attachment 30 is in the locked state, one end of the lock attachment 30 remote from the rotating portion 31 is accommodated in the third notch portion 123. Specifically, the third notch 123 is located in the middle of the bridge seat 12. Thus, the two locking accessories 30 at the two ends of the bridge seat 12 can be accommodated in the third notch portion 123 after being locked, so that the locking effect is prevented from being influenced by the fact that the locking accessories are touched by other objects, and the structure of the connecting bridge assembly is more reasonable.

In an embodiment not shown, the locking attachment 30 is slidably connected to the bridge body 10. Specifically, the bridge seat 12 has a sliding groove penetrating through the bridge seat 12, the extending direction of the sliding groove is the moving direction of the connecting bridge component, and the notch of the sliding groove faces the track of the curtain telescopic rail. The lock attachment 30 is received in and slidable along the slide groove. The lock attachment 30 may be a triangular, diamond-shaped, or other structure having a pointed end. The distance between the groove bottom of the sliding groove and the track of the curtain telescopic rail is gradually reduced from the first end to the second end of the bridge seat 12. Thus, the locking attachment 30 gradually contacts and compresses the track of the curtain telescopic rail from the first end to the second end, thereby fixing the connecting bridge assembly to the track of the curtain telescopic rail. When the locking attachment 30 is to be changed from the locked state to the unlocked state, a thin bar or rod is extended from the second end of the bridge seat 12 into the sliding slot, and the locking attachment 30 is retracted to the first end.

In this embodiment, the bridge deck 11 and the bridge base 12 are detachably connected. Specifically, the two first connecting blocks 111 and the two second connecting blocks 121 are provided with corresponding mounting holes, and bolts sequentially pass through the mounting holes of the first connecting blocks 111 and the mounting holes of the second connecting blocks 121, so that the first connecting blocks 111 and the second connecting blocks 121 are connected through the bolts. Of course, two first connection blocks 111 and two second connection blocks 121 may have corresponding threaded holes, and screws are sequentially screwed into the threaded holes of the first connection blocks 111 and the second connection blocks 121, so as to achieve threaded connection between the first connection blocks 111 and the second connection blocks 121.

In an embodiment not shown, the bridge lid 11 and the bridge seat 12 are integrally formed. Specifically, the two first connection blocks 111 are integrally formed with the two second connection blocks 121. The integrally formed connection mode can ensure that the connection bridge main body 10 has sufficient strength, so that the connection bridge assembly in the embodiment has sufficient service life.

In this embodiment, as shown in fig. 5 to 7, the curtain telescopic rail includes a rail, the above-mentioned connecting bridge assembly 50 for the curtain telescopic rail, and a timing belt 60. The bridge assembly 50 is adjustably connected to the track. A timing belt 60 is trained between the track and the bridge assembly.

As shown in fig. 5-7, the track includes a first rail 70 and a second rail 80. The first guide rail 70 includes a first transmission member 90 and a second transmission member 100, and the first transmission member 90 and the second transmission member 100 are respectively disposed at both ends of the first guide rail 70. Accordingly, the second guide rail 80 includes a third transmission member 110 and a fourth transmission member 120, and the third transmission member 110 and the fourth transmission member 120 are respectively disposed at both ends of the second guide rail 80. The first transmission member 90 is movably connected with the second guide rail 80, and the third transmission member 110 is movably connected with the first guide rail 70, so that the position between the first guide rail 70 and the second guide rail 80 can be adjustably connected. The connecting bridge assembly 50 is movably connected to the first rail 70 and the second rail 80, and is disposed between the first transmission member 90 and the third transmission member 110. The timing belt 60 is sequentially wound between the first transmission member 90, the second transmission member 100, the connecting bridge assembly 50, the third transmission member 110, and the fourth transmission member 120. Specifically, the timing belt 60 sequentially passes around the first transmission member 90, the second transmission member 100, one turning member 20, the third transmission member 110, the fourth transmission member 120, and the other turning member 20. That is, the timing belt 60 is disposed in an i-shape. This enables relative telescopic movement between the first rail 70 and the second rail 80, thereby adjusting the length of the telescopic curtain rail in this embodiment.

Specifically, as shown in fig. 7, the first guide rail 70 and the second guide rail 80 each have a first moving groove 130 at a top portion thereof adjacent to the bridge assembly 50. At least a portion of both sides of the bridge cover 11 is inserted into the two first moving grooves 130. Accordingly, the bottom portions of the first rail 70 and the second rail 80 have a second moving groove 140 on a side thereof adjacent to the connecting bridge assembly 50, respectively. At least a portion of both sides of the bridge seat 12 extend into the two second moving grooves 140 to movably couple the connecting bridge assembly 50 with the first and second guide rails 70 and 80, respectively. In addition, by providing the first and second moving grooves 130 and 140 such that the connecting bridge assembly 50 is caught between the first and second guide rails 70 and 80, the connecting bridge assembly 50 is prevented from falling off.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the connecting bridge component for the curtain telescopic rail comprises a connecting bridge main body 10, a steering component 20 and a locking accessory 30, wherein the steering component 20 is arranged on the connecting bridge main body 10, the locking accessory 30 is rotatably or slidably connected with the connecting bridge main body 10 so that the locking accessory 30 has a locking state and an unlocking state, when the locking accessory 30 is in the locking state, at least one part of the connecting bridge component is pressed against the track of the curtain telescopic rail so as to lock the connecting bridge component with the track, thus the locking accessory 30 is conveniently switched between the locking state and the unlocking state so that the locking accessory 30 is pressed against or released from the track, when the locking accessory 30 is released from the track, the connecting bridge component can freely move on the track of the curtain telescopic rail, after the connecting bridge component moves to a target position, the locking accessory 30 is pressed against the track, the curtain telescopic rail is adjusted to a proper length, so that the length of the curtain telescopic rail can be freely and conveniently adjusted, the user experience is greatly improved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. A connecting bridge assembly for a telescopic curtain rail, comprising:

a connecting bridge body (10);

a steering member (20), the steering member (20) being provided on the connecting axle main body (10);

a lock attachment (30), wherein the lock attachment (30) is connected with the connecting bridge body (10) to enable the lock attachment (30) to have a locking state and an unlocking state, and when the lock attachment (30) is in the locking state, at least one part of the connecting bridge component is pressed with the track of the curtain telescopic track to enable the connecting bridge component to be locked with the track.

2. A connecting bridge assembly for a telescopic curtain rail as claimed in claim 1, wherein said deflector (20) comprises:

the two ends of the rotating pin (21) are connected with the connecting bridge main body (10);

the rotating piece (22), the rotating piece (22) is sleeved on the rotating pin (21) and can rotate around the axial direction of the rotating pin (21).

3. A bridge assembly for a telescopic curtain rail as claimed in claim 1, wherein said bridge body (10) comprises:

a bridge cover (11);

the bridge seat (12), enclose into the accommodation region between bridge lid (11) and the bridge seat (12), steering member (20) sets up in the accommodation region.

4. The bridge assembly according to claim 3, wherein the bridge cover (11) includes two first connection blocks (111) disposed at both ends of the bridge cover (11), a first gap portion (112) is formed between the two first connection blocks (111), the bridge base (12) includes two second connection blocks (121) disposed at both ends of the bridge base (12), a second gap portion (122) is formed between the two second connection blocks (121), the two first connection blocks (111) and the two second connection blocks (121) are disposed correspondingly and detachably connected, respectively, and the first gap portion (112) and the second gap portion (122) constitute the receiving region.

5. A connecting bridge assembly for telescopic curtain rails as claimed in claim 3, wherein one end of said locking attachment (30) is a rotating portion (31), said rotating portion (31) being rotatably connected with said bridge (12), said rotating portion (31) having a cam structure (311),

the cam formation (311) abuts the track when the lock attachment (30) is in the locked condition;

the cam structure (311) is disengaged from the track when the lock attachment (30) is in the unlocked state.

6. A connecting bridge assembly for a telescopic curtain rail according to claim 5, characterised in that the side of the bridge seat (12) remote from the bridge cover (11) has a third notched portion (123), in which third notched portion (123) the end of the locking attachment (30) remote from the turning portion (31) is housed when the locking attachment (30) is in the locking condition.

7. A connecting bridge assembly for telescopic curtain rails as claimed in claim 5, wherein said locking attachments (30) are two, and said bridge base (12) is provided at both ends thereof with rotation recesses, respectively, in which said rotation portions (31) of said two locking attachments (30) are received, respectively.

8. A connecting bridge assembly for a telescopic curtain rail according to claim 3, wherein the bridge base (12) has a sliding slot extending through the bridge base (12), the locking attachment (30) being received in and slidable along the sliding slot, the distance between the slot bottom of the sliding slot and the track of the telescopic curtain rail decreasing from the first end to the second end of the bridge base (12), the locking attachment (30) being slidable from the first end to the second end to compress the track of the telescopic curtain rail.

9. A connecting bridge assembly for a telescopic curtain rail as claimed in any one of claims 1 to 8, wherein said deflector (20) is two and spaced apart from each other, said connecting bridge body (10) having a partition structure (40) for separating the two deflectors (20).

10. A telescopic curtain rail, comprising:

a track;

a connecting bridge assembly for a telescopic curtain rail as claimed in any one of claims 1 to 9, which is adjustably connected to the track;

a timing belt (60), said timing belt (60) being threaded between said track and said connecting bridge assembly.

11. The telescopic curtain rail of claim 10, wherein the track comprises:

the guide rail assembly comprises a first guide rail (70), wherein the first guide rail (70) comprises a first transmission piece (90) and a second transmission piece (100), and the first transmission piece (90) and the second transmission piece (100) are respectively arranged at two ends of the first guide rail (70);

the second guide rail (80), the second guide rail (80) includes third driving medium (110) and fourth driving medium (120), third driving medium (110) with fourth driving medium (120) sets up respectively the both ends of second guide rail (80), first driving medium (90) with second guide rail (80) swing joint, third driving medium (110) with first guide rail (70) swing joint, so that first guide rail (70) with connect between second guide rail (80) position adjustablely, connect the bridge subassembly respectively with first guide rail (70) with second guide rail (80) swing joint, and set up in between first driving medium (90) and third driving medium (110), hold-in range (60) are in proper order around first driving medium (90), second driving medium (100), connect the bridge subassembly, Between the third transmission member (110) and the fourth transmission member (120).

12. The telescopic window curtain rail as claimed in claim 11, wherein the first guide rail (70) and the second guide rail (80) have a first moving groove (130) at a top portion thereof adjacent to the connecting bridge assembly, at least a portion of both sides of the bridge cover (11) of the connecting bridge body (10) extends into the two first moving grooves (130), and a second moving groove (140) at a bottom portion thereof adjacent to the connecting bridge assembly, at least a portion of both sides of the bridge seat (12) of the connecting bridge body (10) extends into the two second moving grooves (140), so that the connecting bridge assembly is movably connected to the first guide rail (70) and the second guide rail (80), respectively.

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