阅读说明：本技术 一种便于调节的伸缩式电动窗帘轨道 (Telescopic electric curtain rail convenient to adjust ) 是由 杜智勇 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种便于调节的伸缩式电动窗帘轨道,包括第一滑轨和第二滑轨；第一滑轨两端设有第一主传动箱和第一副传动箱,第一主传动箱内设有第一带轮,第一副传动箱内设有第二带轮,第一带轮和第二带轮之间套有第一皮带,第一皮带连接第一滑车；第二滑轨两端设有第二主传动箱和第二副传动箱,第二主传动箱内设有第三带轮,第二副传动箱内设有第四带轮,第三带轮和第四带轮之间套有第二皮带,第二皮带连接第二滑车；第二带轮的一端设置有第五带轮,第五带轮与第一皮带传动,第二带轮和第五带轮的侧端设置有卡齿,第五带轮与第二带轮端部的卡齿可啮合或分离。本申请能够更好地使两条滑轨的皮带在分开和联动之间转换以满足轨道的安装调节和运行。(The invention discloses a telescopic electric curtain rail convenient to adjust, which comprises a first slide rail and a second slide rail; a first main transmission box and a first auxiliary transmission box are arranged at two ends of the first slide rail, a first belt wheel is arranged in the first main transmission box, a second belt wheel is arranged in the first auxiliary transmission box, a first belt is sleeved between the first belt wheel and the second belt wheel, and the first belt is connected with a first pulley; a second main transmission box and a second auxiliary transmission box are arranged at two ends of the second slide rail, a third belt wheel is arranged in the second main transmission box, a fourth belt wheel is arranged in the second auxiliary transmission box, a second belt is sleeved between the third belt wheel and the fourth belt wheel, and the second belt is connected with a second pulley; one end of the second belt wheel is provided with a fifth belt wheel, the fifth belt wheel is in transmission with the first belt, the side ends of the second belt wheel and the fifth belt wheel are provided with clamping teeth, and the clamping teeth at the end parts of the fifth belt wheel and the second belt wheel can be meshed or separated. This application can make the belt of two slide rails convert in order to satisfy orbital installation regulation and operation between separately and the linkage better.)

1. A telescopic electric curtain rail convenient to adjust, which is characterized in that,

the device comprises a first slide rail and a second slide rail which are in sliding telescopic connection along the axial direction;

a first main transmission box and a first auxiliary transmission box are respectively arranged at two ends of the first slide rail, a first belt wheel is installed in the first main transmission box, a second belt wheel is installed in the first auxiliary transmission box, a first belt penetrating through the first slide rail is sleeved between the first belt wheel and the second belt wheel, and a first pulley pulled by the first belt is slidably installed at one side of the first slide rail;

a second main transmission box and a second auxiliary transmission box are respectively arranged at two ends of the second slide rail, the first auxiliary transmission box is arranged between the second main transmission box and the second auxiliary transmission box, the second auxiliary transmission box is arranged between the first main transmission box and the first auxiliary transmission box, a third belt wheel is installed in the second main transmission box, a fourth belt wheel is installed in the second auxiliary transmission box, a second belt penetrating through the second slide rail is sleeved between the third belt wheel and the fourth belt wheel, and a second pulley pulled by the second belt is slidably installed at one side of the second slide rail;

first belt and second belt stagger the setting in width direction, the coaxial fifth band pulley that can follow the axial activity that is provided with in one end of second band pulley, the side that second band pulley and fifth band pulley are relative all is provided with the latch, the latch of fifth band pulley tip can mesh with the latch of second band pulley tip or separate, first auxiliary transmission incasement is located the both sides of fifth band pulley still are provided with first leading wheel and second leading wheel respectively, first belt walks around in proper order first leading wheel, fifth band pulley and second leading wheel.

2. The adjustable telescopic electric curtain rail as claimed in claim 1, wherein a first wheel shaft and a second wheel shaft are respectively disposed at two ends of the second pulley, the first wheel shaft is rotatably mounted on a side wall of the first auxiliary transmission box, a guide hole is disposed at an end of the fifth pulley facing the second pulley, the second wheel shaft penetrates and is adapted into the guide hole, a third wheel shaft is disposed at an end of the fifth pulley facing away from the second pulley, the third wheel shaft penetrates out of the other side wall of the first auxiliary transmission box, and a limit cover is detachably mounted outside the side wall of the first auxiliary transmission box and abuts against an outer end of the third wheel shaft.

3. The adjustable, motorized retractable window treatment track of claim 2, wherein opposing sides of the second and fifth pulleys each have an annular groove with a return spring supported therebetween.

4. The adjustable, telescoping, motorized window treatment track of claim 1, the back of the first slide rail is provided with two parallel first clamping rails along the axial direction, the opposite sides of the two first clamping rails are provided with first clamping hooks, two parallel second clamping rails are axially arranged at the back of the second slide rail, second clamping hooks are arranged on the opposite sides of the two second clamping rails, the back side of the first auxiliary transmission box is provided with a first connecting plate extending to the second clamping rail, one side of the first connecting plate close to the second clamping rail is provided with a first matching part in sliding clamping matching with the second clamping hook, the dorsal part of second auxiliary transmission case is equipped with to the second connecting plate that first card rail extends, one side that the second connecting plate is close to first card rail be provided with first trip sliding joint complex second cooperation portion.

5. The adjustable electric window curtain rail as claimed in claim 4, wherein a first mounting plate is further disposed on a back side of the first slide rail and engaged with the first hook, and a second mounting plate is further disposed on a back side of the second slide rail and engaged with the second hook.

6. The adjustable motorized retractable window treatment track of claim 1, wherein the first, second, third, fourth, and fifth pulleys have gear teeth on their outer peripheries, the first and second belts have gear teeth on their inner peripheries, the gear teeth on the first belt are engaged with the gear teeth on the first and second pulleys, respectively, and the gear teeth on the second belt are engaged with the gear teeth on the third, fourth, and fifth pulleys, respectively.

7. The adjustable, retractable, motorized window treatment track as recited in claim 1, wherein a pulley runner is disposed within each of the first and second tracks, two pairs of belt channels are disposed on opposite sides of the pulley runner, a first guide channel is disposed between at least one of the belt channels of each pair and the pulley runner, a second guide channel is disposed on a front side of the pulley runner, the first belt passes through one pair of belt channels of the first track, and the second belt passes through one pair of belt channels of the second track;

first coaster and second coaster all include slider, joint spare and connecting piece, the slider divide into the inserted part and the exposure portion of a body coupling in width direction, the slip adaptation of inserted part in the coaster slide, the one end of joint spare is fixed in the inserted part, the other end of joint spare passes first guide slot is fixed with first belt or the second belt joint in the belt passageway, the connecting piece is fixed in the exposure portion of slider for link to each other with the (window) curtain.

8. The adjustable electric window curtain rail as claimed in claim 7, wherein the insertion portion of the sliding member has two rows of slots formed therein in the width direction, the locking member includes an insertion portion and a locking portion, one end of the insertion portion is fixed to any one of the slots, the locking portion is fixed to the other end of the insertion portion, and the locking portion is used to be locked and fixed to the first belt or the second belt.

9. The adjustable, telescoping, motorized window treatment track as in claim 7, wherein the slider is provided with guide slots on both sides between the insertion portion and the exposed portion, and the second guide slot has both side edges fitted into the corresponding guide slots, respectively.

10. The adjustable, telescoping, motorized window treatment track of claim 7, wherein the slider member is divided into a first slider block and a second slider block in the longitudinal direction, the first slider block and the second slider block being connected by a pin.

Technical Field

The invention relates to the technical field of electric curtains, in particular to a telescopic electric curtain rail convenient to adjust.

Background

The electric curtain is a device which drives the curtain to move back and forth along the track by a motor so as to realize automatic opening and closing of the curtain. In the prior art, the track of the electric curtain is generally designed to be a telescopic structure, so that the length of the track can be conveniently adjusted during installation, and the installation requirements of curtains with different widths can be met.

The existing telescopic electric curtain rail convenient to adjust comprises two sliding rails in sliding telescopic connection, a belt is respectively installed in the two sliding rails, the two belts are transmitted through a transmission device, when a motor drives one of the belts to rotate, the other belt can synchronously rotate, when the two belts rotate, each belt respectively drives a pulley to slide, and then curtains on two sides are synchronously opened or closed through the pulleys.

When installing electric window curtain, carry out flexible regulation back to electric window curtain track, need adjust alone the position of the coaster on two tracks, in order to ensure the coaster symmetry of both sides, then, because two belts can link under transmission's effect, when rotating alone the position in order to adjust the coaster to every belt, need separate the transmission between two belts, adjust the completion back, link two belts again, how to make the belt of two slide rails better adjust and the operation is a problem of treating urgently with satisfying orbital installation and operation between separately and the linkage.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the telescopic electric curtain rail convenient to adjust, so that the belts of the two slide rails can be better switched between separation and linkage to meet the installation adjustment and operation of the rail.

The invention provides a telescopic electric curtain rail convenient to adjust, which comprises a first slide rail and a second slide rail which are in telescopic connection along the axial direction in a sliding manner;

a first main transmission box and a first auxiliary transmission box are respectively arranged at two ends of the first slide rail, a first belt wheel is installed in the first main transmission box, a second belt wheel is installed in the first auxiliary transmission box, a first belt penetrating through the first slide rail is sleeved between the first belt wheel and the second belt wheel, and a first pulley pulled by the first belt is slidably installed at one side of the first slide rail;

a second main transmission box and a second auxiliary transmission box are respectively arranged at two ends of the second slide rail, the first auxiliary transmission box is arranged between the second main transmission box and the second auxiliary transmission box, the second auxiliary transmission box is arranged between the first main transmission box and the first auxiliary transmission box, a third belt wheel is installed in the second main transmission box, a fourth belt wheel is installed in the second auxiliary transmission box, a second belt penetrating through the second slide rail is sleeved between the third belt wheel and the fourth belt wheel, and a second pulley pulled by the second belt is slidably installed at one side of the second slide rail;

first belt and second belt stagger the setting in width direction, the coaxial fifth band pulley that can follow the axial activity that is provided with in one end of second band pulley, the side that second band pulley and fifth band pulley are relative all is provided with the latch, the latch of fifth band pulley tip can mesh with the latch of second band pulley tip or separate, first auxiliary transmission incasement is located the both sides of fifth band pulley still are provided with first leading wheel and second leading wheel respectively, first belt walks around in proper order first leading wheel, fifth band pulley and second leading wheel.

Furthermore, a first wheel shaft and a second wheel shaft are respectively arranged at two ends of the second belt wheel, the first wheel shaft is rotatably installed on one side wall of the first auxiliary transmission box, a guide hole is formed in one end, right opposite to the second belt wheel, of the fifth belt wheel, the second wheel shaft penetrates into the guide hole and is matched with the guide hole, a third wheel shaft is arranged at one end, back to the second belt wheel, of the fifth belt wheel, the third wheel shaft penetrates out of the other side wall of the first auxiliary transmission box, and a limiting cover which is pressed against the outer end of the third wheel shaft is detachably installed outside the side wall of the first auxiliary transmission box.

Furthermore, the opposite side ends of the second belt wheel and the fifth belt wheel are provided with annular grooves, and return springs supported between the second belt wheel and the fifth belt wheel are arranged in the annular grooves.

Further, the back of first slide rail is provided with two parallel first rails, two along the axial the opposite side of first rail is provided with first trip, the back of second slide rail is provided with two parallel second rails, two along the axial the opposite side of second rail is provided with the second trip, the dorsal part of first auxiliary transmission case is equipped with to the first connecting plate that the second rail extends, one side that first connecting plate is close to the second rail be provided with the first cooperation portion of second trip sliding joint complex, the dorsal part of second auxiliary transmission case be equipped with to the second connecting plate that first rail extends, one side that the second connecting plate is close to first rail be provided with first trip sliding joint complex second cooperation portion.

Further, the dorsal part of first slide rail still be provided with first trip slip joint complex first mounting panel, the dorsal part of second slide rail still be provided with second trip slip joint complex second mounting panel.

Furthermore, the peripheries of the first belt wheel, the second belt wheel, the third belt wheel, the fourth belt wheel and the fifth belt wheel are provided with gear teeth, the inner peripheries of the first belt and the second belt are provided with gear teeth, the gear teeth on the first belt are respectively meshed with the gear teeth on the first belt wheel and the second belt wheel, and the gear teeth on the second belt are respectively meshed with the gear teeth on the third belt wheel, the fourth belt wheel and the fifth belt wheel.

Furthermore, pulley slideways are arranged in the first slide rail and the second slide rail, two pairs of belt channels are arranged on two sides of each pulley slideway, a first guide groove is arranged between at least one of the belt channels in each pair and the pulley slideway, a second guide groove is arranged on the front side of each pulley slideway, the first belt passes through one pair of belt channels in the first slide rail, and the second belt passes through one pair of belt channels in the second slide rail;

first coaster and second coaster all include slider, joint spare and connecting piece, the slider divide into the inserted part and the exposure portion of a body coupling in width direction, the slip adaptation of inserted part in the coaster slide, the one end of joint spare is fixed in the inserted part, the other end of joint spare passes first guide slot is fixed with first belt or the second belt joint in the belt passageway, the connecting piece is fixed in the exposure portion of slider for link to each other with the (window) curtain.

Furthermore, the inserting portion of the sliding piece is provided with two rows of slots in the width direction, the clamping piece comprises an inserting portion and a clamping portion, one end of the inserting portion is inserted and fixed in any one of the slots, the clamping portion is fixed at the other end of the inserting portion, and the clamping portion is used for being clamped and fixed with the first belt or the second belt.

Further, guide grooves are formed in two sides of the sliding part between the inserting part and the exposing part, and two side edges of the second guide groove are respectively matched with the corresponding guide grooves.

Furthermore, the sliding part is divided into a first sliding block and a second sliding block in the length direction, and the first sliding block is connected with the second sliding block through a pin shaft.

The invention has the beneficial effects that: the electric curtain rail provided by the application can be adjusted in a telescopic mode to meet the installation requirements of curtains with different widths, after the length of the electric curtain rail is adjusted, the positions of the first pulley and the second pulley are adjusted independently, so that the positions of the first pulley and the second pulley are symmetrical, when the positions of the first pulley and the second pulley are adjusted, the latch at the end part of the fifth pulley is separated from the latch at the end part of the second pulley, so that the first belt and the second belt are separated, then the first belt and the second belt are respectively rotated to respectively adjust the positions of the first pulley and the second pulley, after the first pulley and the second pulley are adjusted in place, the latch at the end part of the fifth pulley is meshed with the latch at the end part of the second pulley, so that the first belt and the second belt are synchronously linked, so long as a motor drives any one of the first pulley and the third pulley to rotate, just can drive first belt and the synchronous rotation of second belt, realize first coaster and the synchronous switch (window) curtain of second coaster, consequently, this application can make the belt of two slide rails change in order to satisfy orbital installation regulation and operation between separately and the linkage better.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an embodiment of the present invention;

FIG. 3 is a front view of an embodiment of the present invention;

FIG. 4 is a sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a cross-sectional view taken at C-C of FIG. 3;

FIG. 7 is a cross-sectional view taken along line D-D of FIG. 3;

FIG. 8 is a schematic perspective view of a sled according to an embodiment of the present invention;

fig. 9 is an exploded view of a first sub-transmission casing according to an embodiment of the present invention.

In the drawings, 100-first slide rail; 110-a first belt; 120-a first sled; 130-a first card track; 131-a first hook; 140-a first mounting plate; 200-a second slide rail; 210-a second belt; 220-a second card rail; 221-a second hook; 230-a second mounting plate; 300-a first main transmission case; 310-a first pulley; 400-a first secondary transmission case; 410-a second pulley; 411-a first axle; 412-a second axle; 420-a fifth pulley; 421-a guide hole; 422-third wheel axle; 430-a limit cover; 440-an annular groove; 450-a return spring; 460-latch; 470-a first guide wheel; 480-a second guide wheel; 490-a first connection plate; 491-a first mating portion; 500-a second main transmission case; 510-a third pulley; 600-a second auxiliary transmission case; 610-a fourth pulley; 620-second connecting plate; 621-a second mating portion; 710-a sled run; 720-belt channel; 730-a first guide slot; 740-a second guide slot; 810-a slider; 811-an insertion portion; 812-an exposed portion; 813-slot; 814-a guide groove; 815 — a first slider; 816-a second slider; 817-pin shaft; 820-a clip; 821-a plug part; 822-a clamping part; 830-connecting member.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1 to 9, an embodiment of the present invention provides an adjustable retractable motorized window treatment track, which includes a first rail 100 and a second rail 200 slidably and telescopically coupled in an axial direction.

The two ends of the first slide rail 100 are respectively provided with a first main transmission box 300 and a first auxiliary transmission box 400, a first belt pulley 310 is installed in the first main transmission box 300, a second belt pulley 410 is installed in the first auxiliary transmission box 400, a first belt 110 penetrating the first slide rail 100 is sleeved between the first belt pulley 310 and the second belt pulley 410, and a first pulley 120 pulled through the first belt 110 is slidably installed on one side of the first slide rail 100.

The both ends of second slide rail 200 are equipped with second main gear case 500 and second auxiliary gear case 600 respectively, first auxiliary gear case 400 is located between second main gear case 500 and the second auxiliary gear case 600, second auxiliary gear case 600 is located between first main gear case 300 and the first auxiliary gear case 400, install third band pulley 510 in the second main gear case 500, install fourth band pulley 610 in the second auxiliary gear case 600, the cover is equipped with the second belt 210 that passes second slide rail 200 between third band pulley 510 and the fourth band pulley 610, one side slidable mounting of second slide rail 200 has the second coaster (not shown in the figure) of drawing through second belt 210.

The first belt 110 and the second belt 210 are arranged in a staggered manner in the width direction, a fifth belt pulley 420 which can move axially is coaxially arranged at one end of the second belt pulley 410, the opposite side ends of the second belt pulley 410 and the fifth belt pulley 420 are both provided with a latch 460, the latch 460 at the end of the fifth belt pulley 420 can be engaged with or disengaged from the latch 460 at the end of the second belt pulley 410, a first guide pulley 470 and a second guide pulley 480 are further respectively arranged on two sides of the fifth belt pulley 420 in the first auxiliary transmission case 400, and the first belt 110 sequentially bypasses the first guide pulley 470, the fifth belt pulley 420 and the second guide pulley 480.

In order to prevent the slip between the pulleys and the belt, the outer circumferences of the first pulley 310, the second pulley 410, the third pulley 510, the fourth pulley 610 and the fifth pulley 420 are provided with teeth, the inner circumferences of the first belt 110 and the second belt 210 are provided with teeth, the teeth of the first belt 110 are engaged with the teeth of the first pulley 310 and the second pulley 410, respectively, and the teeth of the second belt 210 are engaged with the teeth of the third pulley 510, the fourth pulley 610 and the fifth pulley 420, respectively.

The electric curtain rail provided by the application can be adjusted in a telescopic manner to meet the installation requirements of curtains with different widths, after the length of the electric curtain rail is adjusted, the positions of the first pulley 120 and the second pulley are independently adjusted, so that the positions of the first pulley 120 and the second pulley are symmetrical, when the positions of the first pulley 120 and the second pulley are adjusted, the latch 460 at the end part of the fifth pulley 420 and the latch 460 at the end part of the second pulley 410 are separated, the first belt 110 and the second belt 210 are separated, then the first belt 110 and the second belt 210 are respectively rotated to respectively adjust the positions of the first pulley 120 and the second pulley, after the first pulley 120 and the second pulley are adjusted in place, the latch 460 at the end part of the fifth pulley 420 is engaged with the latch 460 at the end part of the second pulley 410, so that the first belt 110 and the second belt are synchronously linked, as long as any one of the first pulley 310 and the third pulley 510 is driven by the motor to rotate, just can drive first belt 110 and second belt 210 synchronous rotation, realize first coaster 120 and second coaster synchronous switch (window) curtain, consequently, this application can make the belt of two slide rails change in order to satisfy orbital installation regulation and operation between separately and the linkage better.

In a preferred embodiment, referring to fig. 5 and 9, a first wheel axle 411 and a second wheel axle 412 are respectively disposed at two ends of the second pulley 410, the first wheel axle 411 is rotatably mounted on a side wall of the first sub transmission case 400, a guide hole 421 is disposed at an end of the fifth pulley 420 facing the second pulley 410, the second wheel axle 412 penetrates and fits into the guide hole 421, a third wheel axle 422 is disposed at an end of the fifth pulley 420 facing away from the second pulley 410, the third wheel axle 422 penetrates out of the other side wall of the first sub transmission case 400, and a limit cover 430 abutting against an outer end of the third wheel axle 422 is detachably mounted outside the side wall of the first sub transmission case 400.

When the limiting cover 430 is covered, the limiting cover 430 is pressed against the third pulley 422 on the fifth pulley 420 towards the inner side of the first auxiliary transmission case 400, so that the side end of the fifth pulley 420 is tightly pressed against the side end of the second pulley 410, the latch 460 at the end of the fifth pulley 420 and the latch 460 at the end of the second pulley 410 are ensured to be meshed, further, the second pulley 410 and the fifth pulley 420 can synchronously rotate, the first belt 110 and the second belt 210 are linked, when the limiting cover 430 is opened, the limiting of the third pulley 422 is released by the limiting cover 430, the fifth pulley 420 moves towards the outer side of the first auxiliary transmission case 400, the latch 460 at the end of the fifth pulley 420 is separated from the latch 460 at the end of the second pulley 410, the linkage of the first belt 110 and the second belt 210 is released, the positions of the first pulley 120 and the second pulley can be respectively adjusted, and the structure realizes the clutch between the second pulley 410 and the fifth pulley 420, the device has the advantages of simple and compact structure, reliable and effective operation and convenient operation.

More preferably, in the present embodiment, the opposite side ends of the second pulley 410 and the fifth pulley 420 are each provided with an annular groove 440, a return spring 450 supported between the second pulley 410 and the fifth pulley 420 is disposed in the annular groove 440, and after the position limiting cover 430 is opened, the return spring 450 can push the fifth pulley 420 outward to ensure that the fifth pulley 420 and the second pulley 410 are separated.

Of course, in other embodiments, the return spring 450 may not be provided, and after the position limiting cover 430 is opened, the fifth pulley 420 loses the constraint of the position limiting cover 430, and the latch 460 can be automatically disengaged when the second pulley 410 and the fifth pulley 420 rotate relatively.

In a preferred embodiment, referring to fig. 2 and 7, the back of the first slide rail 100 is axially provided with two parallel first clamping rails 130, opposite sides of the two first clamping rails 130 are provided with first clamping hooks 131, the back of the second slide rail 200 is axially provided with two parallel second clamping rails 220, opposite sides of the two second clamping rails 220 are provided with second clamping hooks 221, the back of the first sub-transmission case 400 is provided with a first connecting plate 490 extending towards the second clamping rails 220, one side of the first connecting plate 490 close to the second clamping rails 220 is provided with a first matching portion 491 in sliding clamping fit with the second clamping hooks 221, the back of the second sub-transmission case 600 is provided with a second connecting plate 620 extending towards the first clamping rails 130, and one side of the second connecting plate 620 close to the first clamping rails 130 is provided with a second matching portion 621 in sliding clamping fit with the first clamping hooks 131. This application sets up through the dorsal part at first auxiliary transmission case 400 with second slide rail 200 sliding fit's first connecting plate 490, set up at the dorsal part of second auxiliary transmission case 600 with first slide rail 100 sliding fit's second connecting plate 620 for first slide rail 100 and second slide rail 200 assemble into a telescopic whole, need not to establish connection structure between first slide rail 100 and the second slide rail 200 again, its simple structure, gliding frictional force is littleer, it is flexible more laborsaving.

Preferably, in this embodiment, the back side of the first slide rail 100 is further provided with a first mounting plate 140 slidably engaged with the first hook 131, the back side of the second slide rail 200 is further provided with a second mounting plate 230 slidably engaged with the second hook 221, the first mounting plate 140 and the second mounting plate 230 are used for fixedly mounting the motorized window shade rail, and the positions of the first mounting plate 140 and the second mounting plate 230 can be adjusted during mounting.

In a specific embodiment, referring to fig. 6 and 7, pulley runners 710 are disposed in the first slide rail 100 and the second slide rail 200, two pairs of belt channels 720 are disposed on two sides of the pulley runners 710, a first guide slot 730 is disposed between at least one of the belt channels 720 of each pair and the pulley runner 710, a second guide slot 740 is disposed on a front side of the pulley runner 710, the first belt 110 passes through the pair of belt channels 720 of the first slide rail 100, and the second belt 210 passes through the pair of belt channels 720 of the second slide rail 200.

The first pulley 120 and the second pulley each include a slider 810, a clamping member 820 and a connecting member 830, the slider 810 is divided into an insertion portion 811 and an exposed portion 812 which are integrally connected in the width direction, the insertion portion 811 is slidably fitted in the pulley slideway 710, one end of the clamping member 820 is fixed to the insertion portion 811, the other end of the clamping member 820 passes through the first guide groove 730 and is clamped and fixed with the first belt 110 or the second belt 210 in the belt channel 720, and the connecting member 830 is fixed to the exposed portion 812 of the slider 810 for connecting with a curtain.

Above-mentioned structure can realize that the belt drives the coaster and slides along the slide rail, and first slide rail 100 and second slide rail 200 can adopt the slide rail structure that the section is the same, can reduce manufacturing cost, and in the equipment, only need in the installation, select to penetrate a pair of belt passageway 720 in first slide rail 100 with first belt 110, penetrate second belt 210 in second slide rail 200 with the staggered belt passageway 720 of first belt 110 can.

In order to improve stability of the carriage sliding, guide grooves 814 are provided at both sides between the insertion portion 811 and the exposed portion 812 of the slider 810, and both side edges of the second guide groove 740 are respectively fitted into the corresponding guide grooves 814.

Referring to fig. 8, two rows of slots 813 are arranged in the width direction of the insertion portion 811 of the sliding member 810, the clip member 820 includes an insertion portion 821 and a clip portion 822, one end of the insertion portion 821 is inserted into and fixed to any one of the slots 813, the clip portion 822 is fixed to the other end of the insertion portion 821, and the clip portion 822 is used for being fixed to the first belt 110 or the second belt 210 in a clipping manner. Because the first belt 110 and the second belt 210 in the application are arranged in a staggered manner in the width direction, according to the conventional design, in order to meet the requirements of fixing the first pulley 120 and the first belt 110 and fixing the second pulley and the first belt 110, the first pulley 120 and the second pulley cannot be used in common, but the sliding part 810 and the clamping part 820 of the pulley in the application adopt a split type design, when in use, the clamping part 820 can be connected to one row of the slots 813 on the sliding part 810 to form the first pulley 120, and the clamping part 820 is connected to the other row of the slots 813 on the sliding part 810 to form the second pulley, so that the first pulley 120 and the second pulley can be used and exchanged.

Referring again to fig. 8, the sliding member 810 is divided into a first sliding block 815 and a second sliding block 816 in the length direction, and the first sliding block 815 and the second sliding block 816 are connected by a pin 817. When the sliding part 810 is installed, the belt extends out of the end of the sliding rail, the first sliding block 815 is connected to the belt through the clamping part 820, the second sliding block 816 is connected to the belt through the clamping part 820, and then the first sliding block 815 is connected with the second sliding block 816 through the synchronous pin shaft 817, so that the installation is convenient and rapid.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.