CN217772014U

CN217772014U - Telescopic rail and electric curtain

Info

Publication number: CN217772014U
Application number: CN202220772354.8U
Authority: CN
Inventors: 王金友
Original assignee: Shenzhen Xinbofu Intelligent Equipment Co ltd
Current assignee: Shenzhen Xinbofu Intelligent Equipment Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-11-11
Anticipated expiration: 2032-04-02

Abstract

The application discloses a telescopic rail and an electric curtain, wherein the telescopic rail comprises a first rail and a second rail which are arranged in parallel, the first rail and the second rail are connected through a first sliding part and a second sliding part, and the telescopic rail can be stretched through the relative sliding of the first sliding part and the second sliding part; a belt groove and a belt shielding piece mounting groove are arranged in the second track, the belt groove is simultaneously arranged on the inner side of the second track and the outer side close to the first track, and the belt shielding piece mounting groove is simultaneously arranged on the outer side close to the first track and the outer side away from the first track of the second track; the belt of the second track in the electric curtain is in back and forth transmission in the belt groove, and a belt shielding piece in the electric curtain is arranged in the belt shielding piece mounting groove to shield the belt. Through the design, the telescopic rail has the characteristics of small volume, simple structure and bending, and can be suitable for diversified window environments.

Description

Telescopic rail and electric curtain

Technical Field

The application relates to the technical field of smart homes, in particular to a telescopic track and an electric curtain.

Background

The electric curtain is one of representatives of intelligent home furnishing, and the electric control mode is adopted to realize the opening and closing of the curtain, so that a lot of convenience is brought to the life of people. Due to the fact that the size of a window of each family is different, various telescopic rails appear in the market in order to improve the adaptability.

However, as the current window environment is more and more diversified, the traditional telescopic rail has large volume and complex structure, and cannot be bent, so that the telescopic rail is difficult to be applied to the current diversified window environment.

SUMMERY OF THE UTILITY MODEL

The object of the present application is to provide a telescopic rail and a motorized window shade having a small volume, a simple structure and being bendable.

The application discloses a telescopic rail for an electric curtain, the telescopic rail comprises a first rail and a second rail which are arranged side by side, a first sliding part is arranged on one side, close to the second rail, of the first rail, a second sliding part correspondingly matched with the first sliding part is arranged on one side, close to the first rail, of the second rail, the first rail and the second rail are connected through the first sliding part and the second sliding part, and the telescopic rail is realized through the relative sliding of the first sliding part and the second sliding part; a belt groove and a belt shielding piece installation groove are arranged in the second track, the belt groove is arranged on the inner side of the second track and the outer side close to the first track, and the belt shielding piece installation groove is arranged on the outer side close to the first track and the outer side far away from the first track of the second track; the belt of the second track in the electric curtain is in back and forth transmission in the belt groove, and a belt shielding piece in the electric curtain is arranged in the belt shielding piece mounting groove to shield the belt.

Optionally, the first track comprises a first mounting region, a first belt region and a first pulley region, the first belt region being disposed between the first mounting region and the first pulley region; the second track includes a second mounting region, a second belt region disposed between the second mounting region and the second sheave region, the second belt region being higher than the first belt region, and a second sheave region.

Optionally, the second rail includes a first side plate and a second side plate which are oppositely disposed, the first side plate is disposed between the first rail and the second side plate, and the second slider is disposed on the first side plate; the second belt zone comprises a first belt groove and a second belt groove that together form a belt groove of the second track, the first belt groove disposed between the first side panel and the first track, the second belt groove disposed between the first side panel and the second side panel, a belt of the second track in the motorized window treatment driving back and forth in the first belt groove and the second belt groove; the second track still includes first belt shielding piece mounting groove and second belt shielding piece mounting groove, first belt shielding piece mounting groove and second belt shielding piece mounting groove form jointly the orbital belt shielding piece mounting groove of second, first belt shielding piece mounting groove sets up between first belt groove and the first track, second belt shielding piece mounting groove sets up the second curb plate is kept away from first orbital one side, belt shielding piece among the electric window curtain sets up in first belt shielding piece mounting groove and the second belt shielding piece mounting groove, and shelter from belt in the first belt groove.

Optionally, the first rail includes a third side plate and a fourth side plate which are oppositely arranged, the third side plate is arranged between the second rail and the fourth side plate, and the first sliding member is arranged on the third side plate; the first belt area comprises a third belt groove and a fourth belt groove, the third belt groove is formed in the third side plate, the fourth belt groove is formed in the fourth side plate, and the third belt groove and the fourth belt groove are arranged oppositely; the width of second race is greater than the width of first race, the width of fourth race is greater than the width of third race, just the second race with the inner wall surface unevenness of fourth race.

Optionally, the first mounting area includes a first clamping table and a second clamping table, and the first clamping table is connected to an end of the fourth side plate and extends in a direction away from the third side plate; the second clamping table is connected with the end part of the third side plate and extends along the direction departing from the fourth side plate; the second mounting area comprises a third clamping table and a fourth clamping table, and the third clamping table is connected with the end part of the first side plate and extends along the direction departing from the second side plate; the fourth clamping table is connected with the end part of the second side plate and extends along the direction departing from the first side plate; the first clamping table and the second clamping table are respectively clamped with a main rail mounting code of the electric curtain, and the third clamping table and the fourth clamping table are respectively clamped with a secondary rail mounting code of the electric curtain.

Optionally, the top of the third side plate is bent toward the direction of the fourth side plate to form a bent portion, the second clamping table is connected with the bent portion, and the end portion of the second clamping table is abutted against the end portion of the third clamping table.

Optionally, the first rail includes a first partition plate, and the first partition plate is disposed between the first installation area and the first belt area and is connected to the third side plate and the fourth side plate, respectively; the second track includes a second partition connected to the top of the first and second side plates.

Optionally, the first sliding part is a sliding block, and the second sliding part is a sliding groove; or, the first sliding part is a sliding groove and the first sliding part is a sliding block; the cross sections of the sliding block and the sliding groove are L-shaped.

The application also discloses a motorized window treatment, the motorized window treatment includes as above the telescopic rail.

Optionally, the electric window curtain includes a belt and a belt blocking piece, the belt is disposed in the first belt groove, the second belt groove, the third belt groove and the fourth belt groove of the telescopic rail, and the belt blocking piece is disposed in the first belt blocking piece mounting groove and the second belt blocking piece mounting groove of the telescopic rail; wherein the belt shielding piece is the same in color as the telescopic rail.

Optionally, the electric curtain further comprises a main rail installation code, an auxiliary rail installation code and an overlapping position installation code, when the telescopic rail is unfolded, the main rail installation code is clamped with a first rail which is not overlapped in the telescopic rail, the auxiliary rail installation code is clamped with a second rail which is not overlapped in the telescopic rail, and the overlapping position installation code is clamped with the first rail or the second rail in an overlapping area in the telescopic rail; and the main rail mounting code, the auxiliary rail mounting code and the overlapping position mounting code are respectively provided with a mounting hole.

Optionally, the electric curtain further comprises a motor, the motor drives a belt in the electric curtain, and the motor is arranged on one side, away from the first rail, of the second rail in the telescopic rail.

For being equipped with the shell outside flexible track, perhaps establish a track cover at another orbital scheme, this application is in the same place first track and second track are simply parallelly connected, only realize scalable through slider cooperation sliding connection in first track and the second track, need not fix and consolidate with the help of extra structure to greatly simplified the structure of flexible track and electric window curtain, be favorable to dwindling flexible orbital volume. And this application still sets up belt shielding piece mounting groove in flexible track, shelters from the belt in the flexible track through setting up belt shielding piece in belt shielding piece mounting groove, not only makes belt transmission ground more smooth, is difficult for popping out, still makes electric curtain when expandeing and using, and the user can not observe the belt in the electric curtain, has improved electric curtain's pleasing to the eye effect. In addition, this application only does the belt shielding piece mounting groove on the second track, and not only easy to assemble belt shielding piece can also not receive the pulling when flexible track warp to do not influence flexible orbital bending, make flexible track and electric window curtain in this application can be applicable to diversified window environment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a perspective view of a telescoping rail provided herein;

FIG. 2 is a cross-sectional schematic view of a telescoping rail provided herein;

FIG. 3 is a cross-sectional view of a second rail provided herein;

fig. 4 is a schematic cross-sectional view of a first rail provided in the present application.

10, an electric curtain; 20. a telescopic rail; 100. a first track; 110. a first slider; 120. a first mounting area; 130. a first belt zone; 131. a third belt groove; 132. a fourth belt groove; 140. a first sheave area; 150. a third side plate; 151. a bending section; 160. a fourth side plate; 170. a first chuck table; 180. a second chuck table; 190. a first separator; 200. a second track; 210. a second slider; 220. a belt groove; 230. a belt shielding member mounting groove; 231. a first belt shielding piece mounting groove; 232. a second belt shield mounting groove; 240. a second mounting area; 250. a second belt zone; 251. a first belt groove; 252. a second belt groove; 260. a second sheave area; 270. a first side plate; 280. a second side plate; 290. a third clamping table; 300. a fourth chuck table; 320. a second separator.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless stated otherwise, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and any variations thereof, are intended to cover a non-exclusive inclusion, which may have the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.

Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 and 2, the present application discloses a telescopic rail 20 for a motorized window shade, the telescopic rail 20 includes a first rail 100 and a second rail 200 that are arranged side by side, a first sliding member 110 is disposed on one side of the first rail 100 close to the second rail 200, a second sliding member 210 that is correspondingly engaged with the first sliding member 110 is disposed on one side of the second rail 200 close to the first rail 100, the first rail 100 and the second rail 200 are connected by the first sliding member 110 and the second sliding member 210, and the telescopic rail is realized by the relative sliding of the first sliding member 110 and the second sliding member 210; a belt groove 220 and a belt shielding piece installation groove 230 are arranged in the second rail 200, the belt groove 220 is simultaneously arranged on the inner side of the second rail 200 and the outer side close to the first rail 100, and the belt shielding piece installation groove 230 is simultaneously arranged on the outer side close to the first rail 100 and the outer side far away from the first rail 100 of the second rail 200; the belt of the second rail 200 of the motorized window shade 10 is driven back and forth in the belt groove 220, and the belt shade of the motorized window shade 10 is disposed in the belt shade installation groove 230 to shade the belt.

Compared with the scheme that a shell is arranged outside the telescopic rail 20 or one rail is sleeved on the other rail, the first rail 100 and the second rail 200 are simply combined together, the telescopic curtain can be telescopic only through the sliding connection of the sliding parts in the first rail 100 and the second rail 200 in a matching mode, and the fixing and the reinforcing are not needed by means of an additional structure, so that the structures of the telescopic rail 20 and the electric curtain 10 are greatly simplified, and the size of the telescopic rail 20 is reduced. Moreover, the belt shielding piece mounting groove 230 is further arranged in the telescopic rail 20, and the belt in the telescopic rail 20 is shielded by the belt shielding piece arranged in the belt shielding piece mounting groove 230, so that the belt is more smoothly driven and is not easy to pop up, and when the electric curtain 10 is unfolded and used, a user cannot observe the belt in the electric curtain 10, so that the attractive effect of the electric curtain 10 is improved. In addition, this application only does belt shielding piece mounting groove 230 on second track 200, not only easy to assemble belt shielding piece, can also not receive the pulling when flexible track 20 warp to do not influence the bending of flexible track 20, make flexible track 20 and electric window curtain 10 in this application can be applicable to diversified window environment.

In the telescopic rail 20 provided in the present application, there is no difference between the primary rail and the secondary rail, and the first rail 100 may be configured with a motor to form the primary rail, and the second rail 200 may be configured with a motor to form the primary rail as required. As to the structure of the first slider 110 and the second slider 210, specifically, the first slider 110 may be a slider, and the second slider 210 may be a sliding chute; or the first sliding member 110 is a sliding groove, and the first sliding member 110 is a sliding block. The cross sections of the sliding block and the sliding groove are L-shaped, but the two surfaces forming the sliding block and the sliding groove are not limited to be perpendicular to each other, and can form an acute angle or an obtuse angle, and the two surfaces forming the sliding block and the sliding groove can be planes or curved surfaces. Preferably, two surfaces forming the sliding block and the sliding groove are mutually perpendicular planes, and when the telescopic rail 20 is bent, the sliding groove and the sliding rail are bent together, and cannot be mutually abutted to prevent bending; compared with the scheme that the cross section of the sliding block and the sliding groove is in a T shape or a dovetail groove shape, the bending of the telescopic rail 20 is more facilitated.

As shown in FIG. 2, the first track 100 includes a first mounting area 120, a first belt area 130, and a first sheave area 140, the first belt area 130 being disposed between the first mounting area 120 and the first sheave area 140; the second track 200 includes a second mounting area 240, a second belt area 250, and a second sheave area 260, the second belt area 250 being disposed between the second mounting area 240 and the second sheave area 260. Wherein the first and

second installation regions

120 and 240 are regions for connecting and fixing the telescopic rail 20 with the installation yard, the first and

second belt regions

130 and 250 are regions for arranging belts in the telescopic rail 20, and the first and

second pulley regions

140 and 260 are regions for installing pulleys in the telescopic rail 20, and a curtain sheet or a curtain cloth of a curtain is suspended by the pulleys. In the telescopic rail 20, the belt region of the first rail 100 and the belt region of the second rail 200 are not at the same height, but the second belt region 250 is higher than the first belt region 130, so that synchronous transmission is realized.

Specifically, as shown in fig. 2 and fig. 3, the second rail 200 includes a first side plate 270 and a second side plate 280 which are oppositely disposed, the first side plate 270 is disposed between the first rail 100 and the second side plate 280, the cross section of the first side plate 270 is stepped, and the second slider 210 is disposed on the first side plate 270; the second belt zone 250 includes a first belt groove 251 and a second belt groove 252, the first belt groove 251 and the second belt groove 252 collectively form the belt groove 220 of the second track 200, the first belt groove 251 is disposed between the first side panel 270 and the first track 100, the second belt groove 252 is disposed between the first side panel 270 and the second side panel 280, and a belt of the second track 200 of the motorized window shade 10 is driven back and forth in the first belt groove 251 and the second belt groove 252; the second track 200 further includes a first belt shielding member installation slot 231 and a second belt shielding member installation slot 232, the first belt shielding member installation slot 231 and the second belt shielding member installation slot 232 jointly form a belt shielding member installation slot 230 of the second track 200, the first belt shielding member installation slot 231 is disposed between the first belt slot 251 and the first track 100, the second belt shielding member installation slot 232 is disposed on a side of the second side plate 280 away from the first track 100, a belt shielding member in the electric window curtain 10 is disposed in the first belt shielding member installation slot 231 and the second belt shielding member installation slot 232, and shields a belt in the first belt slot 251.

Since the first belt groove 251 is disposed between the first side plate 270 and the first rail 100, when the telescopic rail 20 is unfolded, the first belt groove 251 and the belt in the first belt groove 251 are exposed to the visual field of the user, which affects the sense of the user; therefore, the first belt shielding piece mounting groove 231 is arranged outside the first belt groove 251, and the belt in the first belt groove 251 is shielded by the belt shielding piece, so that the belt is shielded by the belt shielding piece, the sensory effect of a user is better, the transmission of the belt is smoother, and the belt is not easy to pop up; the belt is also protected by the belt shield. In addition, the second belt shielding member installation groove 232 is disposed on a side of the second side plate 280 far away from the first rail 100, that is, on the outer side of the telescopic rail 20, and the second belt shielding member installation groove 232 is used for accommodating an excess second belt shielding member; the second side plate 280 may be positioned against the wall to avoid direct viewing when installing the telescopic rail 20.

As shown in fig. 2 and 4, the first rail 100 includes a third side plate 150 and a fourth side plate 160 which are oppositely disposed, the third side plate 150 is disposed between the second rail 200 and the fourth side plate 160, and the first sliding member 110 is disposed on the third side plate 150; first belt segment 130 includes third belt segment 131 and fourth belt segment 132, third belt segment 131 is disposed on third side panel 150, fourth belt segment 132 is disposed on fourth side panel 160, just third belt segment 131 and fourth belt segment 132 set up relatively. The belts in the first belt groove 251 and the third belt groove 131 are synchronously driven through a clutch or other structure via a third side plate 150.

In addition, the width of second strap slot 252 is greater than the width of first strap slot 251, and the width of fourth strap slot 132 is greater than the width of third strap slot 131; because the belt buckle is arranged on the belt in the second belt groove 252 and the fourth belt groove 132, the width of the belt in the second belt groove 252 and the fourth belt groove 132 is large, so that the second belt groove 252 and the fourth belt groove 132 can be wider, and the influence on the movement of the belt is avoided. Further, the inner wall surfaces of the second belt groove 252 and the fourth belt groove 132 are not flat, and specifically, the inner wall surfaces of the second belt groove 252 and the fourth belt groove 132 may be made into a saw-toothed shape, or other planes and curved surfaces with different heights, so as to reduce the contact area between the belt and the second belt groove 252 and the fourth belt groove 132, reduce the friction force applied to the belt, and make the belt transmission smoother.

The first track 100 further comprises a first partition 190, the first partition 190 being disposed between the first mounting area 120 and the first belt area 130, and being connected to the third side panel 150 and the fourth side panel 160, respectively; the second track 200 further comprises a second partition 320, the second partition 320 being connected to the top of the first side plate 270 and the second side plate 280. The first partition plate 190 and the second partition plate 320 are not on the same plane, and the first partition plate 190 corresponds to the first slider 110 in position except that the first partition plate 190 and the second partition plate 190 are matched to form the third belt groove 131 and the fourth belt groove 132, so that the middle structure of the telescopic rail 20 can be stabilized. The second partition 320 can stabilize the top structure of the telescopic rail 20, in addition to cooperatively forming the first belt groove 251, the second belt groove 252, and the belt barrier mounting groove 230.

The telescopic rail 20 is clamped with the mounting code of the electric window curtain 10 in a clamping manner, specifically, the first mounting area 120 includes a first clamping table 170 and a second clamping table 180, the first clamping table 170 is connected with an end of the fourth side plate 160, and extends in a direction departing from the third side plate 150; the second locking platform 180 is connected to an end of the third side plate 150 and extends in a direction away from the fourth side plate 160; the second mounting region 240 includes a third clamping platform 290 and a fourth clamping platform 300, the third clamping platform 290 is connected with the end of the first side plate 270 and extends along the direction away from the second side plate 280; the fourth clamping platform 300 is connected with the end of the second side plate 280 and extends along the direction away from the first side plate 270; the first clamping table 170 and the second clamping table 180 are respectively clamped with the main rail mounting code of the electric curtain 10, and the third clamping table 290 and the fourth clamping table 300 are respectively clamped with the auxiliary rail mounting code of the electric curtain 10.

The top of the third side plate 150 is bent toward the fourth side plate 160 to form a bent portion 151, the second locking member 180 is connected to the bent portion 151, and an end of the second locking member 180 abuts against an end of the third locking member 290. In addition to attaching the first side plate 270 and the third side plate 150 together, in order to prevent the width of the telescopic rail 20 from widening due to the relative protrusion of the locking platform on the first side plate 270 and the locking platform on the third side plate 150, the top of the third side plate 150 is recessed inwards, so that the locking platform on the first side plate 270 and the locking platform on the third side plate 150 do not interfere with each other, and the volume of the telescopic rail 20 is further reduced.

The application also discloses a motorized window treatment 10, motorized window treatment 10 includes belt, belt shielding piece and motor isotructure except that including foretell flexible track 20, the belt sets up in first belt groove 251, second belt groove 252, third belt groove 131 and fourth belt groove 132 of flexible track 20, the belt shielding piece sets up in flexible track 20's first belt shielding piece mounting groove 231 and second belt shielding piece mounting groove 232, motor drive belt among the motorized window treatment 10.

Moreover, the belt shielding member may have the same color as the telescopic rail 20, so that even though the second belt shielding member installed in the second belt shielding member installation groove 232 is exposed to the outside of the motorized window shade 10, it is not clearly observed by a person, so that the motorized window shade 10 has a better aesthetic effect. For the design of the belt shielding member, a material with certain hardness and flexibility can be used for manufacturing the belt shielding member, such as a steel ruler or a plastic sheet.

For the motor in the electric curtain 10, besides using a small motor, the motor is also arranged on one side of the second rail 200 of the telescopic rail 20, which is far away from the first rail 100, that is, on the same side of the second belt shielding member installation groove 232; after the electric curtain 10 is installed, the motor faces the wall, and the user can not see the motor, so that the aesthetic effect of the electric curtain 10 is more prominent.

For the installation of the electric curtain 10, the electric curtain 10 further comprises a main rail installation code, a secondary rail installation code and an overlapping position installation code, when the telescopic rail 20 is unfolded, the main rail installation code is clamped with a first rail 100 which is not overlapped in the telescopic rail 20, the secondary rail installation code is clamped with a second rail 200 which is not overlapped in the telescopic rail 20, and the overlapping position installation code is clamped with the first rail 100 or the second rail 200 in an overlapping area in the telescopic rail 20; the main rail mounting code, the auxiliary rail mounting code and the overlapping position mounting code are respectively provided with a mounting hole, and the main rail mounting code, the auxiliary rail mounting code and the overlapping position mounting code can be fixed on a ceiling through screws. The number of the main rail mounting codes, the number of the auxiliary rail mounting codes and the number of the overlapping position mounting codes are not limited, and a common metal plate structure is adopted, so that excessive limitation is not performed.

The foregoing is a further detailed description of the present application in connection with specific alternative embodiments and it is not intended that the present application be limited to these specific details. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims

1. A telescopic rail is used for an electric curtain and is characterized by comprising a first rail and a second rail which are arranged in parallel, wherein a first sliding part is arranged on one side of the first rail close to the second rail, a second sliding part correspondingly matched with the first sliding part is arranged on one side of the second rail close to the first rail, the first rail and the second rail are connected through the first sliding part and the second sliding part, and the telescopic rail is realized through the relative sliding of the first sliding part and the second sliding part;

a belt groove and a belt shielding piece installation groove are arranged in the second track, the belt groove is arranged on the inner side of the second track and the outer side close to the first track, and the belt shielding piece installation groove is arranged on the outer side close to the first track and the outer side far away from the first track of the second track; the belt of the second track in the electric curtain is in back and forth transmission in the belt groove, and a belt shielding piece in the electric curtain is arranged in the belt shielding piece mounting groove to shield the belt.

2. The telescoping rail of claim 1, wherein said first rail comprises a first mounting region, a first belt region, and a first sheave region, said first belt region being disposed between said first mounting region and said first sheave region; the second track includes a second mounting region, a second belt region disposed between the second mounting region and the second sheave region, the second belt region being higher than the first belt region, and a second sheave region.

3. The telescopic track according to claim 2, wherein the second track comprises first and second oppositely disposed side plates, the first side plate being disposed between the first and second side plates, and the second slider being disposed on the first side plate;

the second belt zone comprises a first belt groove and a second belt groove that together form a belt groove of the second track, the first belt groove disposed between the first side panel and the first track, the second belt groove disposed between the first side panel and the second side panel, a belt of the second track in the motorized window treatment driving back and forth in the first belt groove and the second belt groove;

the second track still includes first belt shielding piece mounting groove and second belt shielding piece mounting groove, first belt shielding piece mounting groove and second belt shielding piece mounting groove form jointly the orbital belt shielding piece mounting groove of second, first belt shielding piece mounting groove sets up between first belt groove and the first track, second belt shielding piece mounting groove sets up the second curb plate is kept away from first orbital one side, belt shielding piece among the electric window curtain sets up in first belt shielding piece mounting groove and the second belt shielding piece mounting groove, and shelter from belt in the first belt groove.

4. The telescoping rail of claim 3, wherein said first rail comprises oppositely disposed third and fourth side panels, said third side panel being disposed between said second and fourth side panels, and said first slide being disposed on said third side panel;

the first belt area comprises a third belt groove and a fourth belt groove, the third belt groove is formed in the third side plate, the fourth belt groove is formed in the fourth side plate, and the third belt groove and the fourth belt groove are oppositely arranged;

the width of second race is greater than the width of first race, the width of fourth race is greater than the width of third race, just the second race with the inner wall surface unevenness of fourth race.

5. The telescoping rail of claim 4, wherein said first mounting area comprises a first catch and a second catch, said first catch being connected to an end of said fourth side plate and extending in a direction away from said third side plate; the second clamping table is connected with the end part of the third side plate and extends along the direction departing from the fourth side plate;

the second mounting area comprises a third clamping table and a fourth clamping table, and the third clamping table is connected with the end part of the first side plate and extends along the direction departing from the second side plate; the fourth clamping table is connected with the end part of the second side plate and extends along the direction departing from the first side plate;

the first clamping table and the second clamping table are respectively clamped with a main rail mounting code of the electric curtain, and the third clamping table and the fourth clamping table are respectively clamped with a secondary rail mounting code of the electric curtain.

6. The telescopic rail according to claim 1, wherein said first sliding member is a slider and said second sliding member is a runner; or

The first sliding part is a sliding groove and is a sliding block;

the cross sections of the sliding block and the sliding groove are L-shaped.

7. A motorized window treatment, comprising a telescopic rail according to any one of claims 1 to 6.

8. The motorized window treatment of claim 7, wherein the motorized window treatment comprises a belt disposed in the first belt slot, the second belt slot, the third belt slot, and the fourth belt slot of the telescoping rail, and a belt shield disposed in the first belt shield mounting slot and the second belt shield mounting slot of the telescoping rail;

wherein the belt shielding piece has the same color as the telescopic rail.

9. The motorized window treatment of claim 7, further comprising a primary rail mount, a secondary rail mount, and an overlap mount, wherein when the telescoping rail is extended the primary rail mount engages a non-overlapping first one of the telescoping rails, the secondary rail mount engages a non-overlapping second one of the telescoping rails, and the overlap mount engages either the first rail or the second rail in the overlapping region of the telescoping rails;

and the main rail mounting code, the auxiliary rail mounting code and the overlapping position mounting code are respectively provided with a mounting hole.

10. The motorized window treatment of claim 7, further comprising a motor that drives a belt in the motorized window treatment, the motor being disposed on a side of the second one of the telescoping rails that is distal from the first rail.