阅读说明：本技术 一种可伸缩的窗帘导轨及其伸缩方法 (Telescopic curtain guide rail and telescopic method thereof ) 是由 赵敏 胡笛 于 2021-01-22 设计创作，主要内容包括：本发明公开了一种可伸缩的窗帘导轨,包括外轨和内轨,所述内轨位于所述外轨的一侧,且嵌套在外轨内部；还包括传动机构,所述传动机构包括主动轮、从动轮、第一定滑轮、第二定滑轮、皮带和滑动绳,所述皮带依次经过主动轮、第一定滑轮、从动轮和第二定滑轮,再缠绕回所述主动轮上；所述滑动绳的一端固定连接在所述从动轮外侧,所述滑动绳的另一端通过第三定滑轮连接至所述外轨上端内部；当所述内轨沿着外轨滑动时,位于从动轮外侧的滑动绳位置发生变化,进而带动所述从动轮的位置发生变化,确保皮带处于张紧状态。本发明装置结构简单,占地面积较小,伸缩操作方便,可以实现标准化批量生产,进而降低生产成本。(The invention discloses a telescopic curtain guide rail, which comprises an outer rail and an inner rail, wherein the inner rail is positioned on one side of the outer rail and is embedded in the outer rail; the belt is wound back to the driving wheel after sequentially passing through the driving wheel, the first fixed pulley, the driven wheel and the second fixed pulley; one end of the sliding rope is fixedly connected to the outer side of the driven wheel, and the other end of the sliding rope is connected to the inner part of the upper end of the outer rail through a third fixed pulley; when the inner rail slides along the outer rail, the position of the sliding rope positioned on the outer side of the driven wheel is changed, so that the position of the driven wheel is driven to be changed, and the belt is ensured to be in a tensioning state. The device has the advantages of simple structure, small occupied area and convenient telescopic operation, and can realize standardized batch production, thereby reducing the production cost.)

1. The telescopic curtain guide rail is characterized by comprising an outer rail (1) and an inner rail (2), wherein the inner rail (2) is positioned on one side of the outer rail (1) and is nested in the outer rail (1);

the novel track roller is characterized by further comprising a transmission mechanism, wherein the transmission mechanism comprises a driving wheel (61), a driven wheel (62), a first fixed pulley (63), a second fixed pulley (64), a belt (41) and a sliding rope (65), the driving wheel (61) is fixed on one side, away from the inner rail, of the outer rail, the driven wheel (62) is fixed at the bottom of the inner rail, the first fixed pulley (63) and the second fixed pulley (64) are fixed on one side, away from the outer rail, of the inner rail in parallel, and the belt (41) sequentially passes through the driving wheel (61), the first fixed pulley (63), the driven wheel (62) and the second fixed pulley (64) and then is wound back on the driving wheel (61); one end of the sliding rope (65) is fixedly connected to the outer side of the driven wheel (62), and the other end of the sliding rope (65) is connected to the inner part of the upper end of the outer rail through a third fixed pulley (67);

when the inner rail slides along the outer rail, the position of the sliding rope positioned on the outer side of the driven wheel is changed, so that the position of the driven wheel is driven to be changed, and the belt is ensured to be in a tensioning state.

2. The retractable window curtain rail of claim 1, wherein the driving wheel (61) is connected with a motor (66), the belt (41) is connected with a belt buckle and/or a hanging wheel, and the lower end of the belt buckle and/or the hanging wheel is connected with a curtain cloth; when the motor (66) drives the driving wheel (61) to rotate, the belt (41) rotates around the driving wheel (61), the first fixed pulley (63), the driven wheel (62) and the second fixed pulley (64), and then the curtain cloth is driven to slide.

3. The retractable curtain rail of claim 2, further comprising a pluggable belt buckle, wherein the pluggable belt buckle comprises a belt buckle (51) and a connecting unit (52) connected to the belt buckle (51), a pulley (53) is connected below the connecting unit (52), and a curtain cloth is connected below the pulley (53); the connecting unit (52) comprises an L-shaped connecting block (512), an upper connecting plate (521) and a lower connecting plate;

the belt buckle (51) is a cuboid belt buckle, the front face and the rear face of the cuboid belt buckle are penetrated through by a belt, one side, far away from the belt, of the cuboid belt buckle is fixedly connected with two parallel and same L-shaped connecting blocks (512), the tail end of the L-shaped connecting block (512) positioned above is connected with an upper connecting plate (521) parallel to the side face of the cuboid belt buckle, the tail end of the L-shaped connecting block (512) positioned below is connected with a lower connecting plate parallel to the side face of the cuboid belt buckle, and a U-shaped buckle (54) is detachably mounted on the L-shaped connecting block (512) and the side face of the cuboid belt buckle, wherein one side of the U-shaped buckle (54) covers the tail ends of the two L-shaped connecting blocks (512) simultaneously, and the other;

when the U-shaped buckle (54) is inserted into the belt buckle (51), the position of the belt buckle (51) on the belt is fixed, and when the U-shaped buckle (54) is pulled out of the belt buckle (51), the position of the belt buckle (51) on the belt can move.

4. A retractable window curtain rail as claimed in claim 3, wherein said lower connecting plate is a T-shaped connecting plate, said T-shaped connecting plate comprises a first connecting plate (522) parallel to the direction of the belt and a second connecting plate (523) perpendicular to the belt, said pulley (53) is fixed to the end of the second connecting plate (523);

the pulley (53) comprises a U-shaped pulley (53) connecting piece and a hanging piece (532) positioned at the lower end of the U-shaped pulley (53) connecting piece, the top end of the U-shaped pulley (53) connecting piece is fixedly connected with the tail end of the second connecting plate (523), and the lower end of the hanging piece (532) is connected with curtain cloth; the top end of the connecting piece of the U-shaped pulley (53) comprises a connecting gap, and the tail end of the second connecting plate (523) penetrates through the connecting gap.

5. A retractable window curtain rail as claimed in claim 3, characterised in that the side of the belt buckle (51) which is not connected to the connecting unit (52) is provided internally with grooves perpendicular to the direction of movement of the belt, said grooves being evenly distributed in the inner side of the belt buckle (51).

6. The retractable window curtain rail of claim 2, wherein a window curtain is connected below the hanging wheel and slides along the inner rail and the outer rail; the inner rail is nested inside the outer rail; the bottom of the inner rail comprises an inverted T-shaped slide rail (21), the bottom of the outer rail comprises parallel slide rails (11) positioned on two sides of the inverted T-shaped slide rail (21), and the inverted T-shaped slide rail (21) and the parallel slide rails (11) are positioned in the same plane in the horizontal direction; the hanging wheels comprise U-shaped hanging wheel connecting pieces (31) and hanging rings (32) located at the bottoms of the U-shaped hanging wheel connecting pieces (31), the top ends of the two sides of each U-shaped hanging wheel connecting piece (31) are respectively connected with rotating wheels, each rotating wheel comprises an inner rotating wheel (33) and an outer rotating wheel (34), the bottom of each inner rotating wheel (33) is in contact with the corresponding inverted T-shaped sliding rail (21), and the bottom of each outer rotating wheel (34) is in contact with the corresponding parallel sliding rail (11); when the hanging wheels slide along the inner rail and the outer rail, the inner rotating wheel (33) and the outer rotating wheel (34) respectively slide along the inner rail and the outer rail;

when the hanging wheels are positioned in the overlapping area of the outer rail and the inner rail, the inner rotating wheels (33) move (21) along the inverted T-shaped sliding rails and the outer rotating wheels (34) move along the parallel sliding rails (11); when the hanging wheel is positioned in the outer rail area, the outer rotating wheel (34) moves along the parallel sliding rail (11); when the hanging wheel is positioned in the inner rail area, the inner rotating wheel (33) moves along the inverted T-shaped sliding rail (21).

7. The retractable window curtain rail of claim 6, wherein said outer rail comprises a T-shaped stop (12), said T-shaped stop (12) being located on a side of said parallel guideway (11) remote from the hanging wheel, a distance between said T-shaped stop (12) and said outer rotatable wheel (34) being greater than 0;

the inner rail also comprises two notch openings (22) positioned above the inverted T-shaped sliding rail (21), the notches of the notch openings (22) face the direction of the outer rail, a sliding cavity is formed between the two notch openings (22), and a belt (41) is arranged in each notch opening (22); the outer end of the upper part of the notch (22) is connected with a first U-shaped fixing piece (23); the upper end of the outer rail is provided with a second U-shaped fixing piece (13) matched with the first U-shaped fixing piece (23), and the second U-shaped fixing piece (13) is nested on the outer side of the first U-shaped fixing piece (23); an outer fixing plate (14) is fixedly connected to the lower portion of the second U-shaped fixing piece (13), the outer fixing plate (14) is in contact with the notch (22), and the inner portion of the lower end of the second U-shaped fixing piece (13) is in contact with the outer portion of the lower end of the first U-shaped fixing piece (23).

8. The retractable window covering rail of claim 1, wherein the third fixed sheave rotates in a direction perpendicular to the direction of rotation of the first and second fixed sheaves.

9. A method of telescoping using the retractable window curtain rail of claim 1, comprising the steps of:

s01: the inner rail (2) moves towards the direction far away from the outer rail (1), the sliding rope (65) is fixed at one end of the outer rail (1) and is fixed, and one end, fixed at the outer side of the driven wheel (62), of the sliding rope (65) moves towards the direction far away from the outer rail (1) along with the inner rail (2);

s02: the sliding rope (65) drives the driven wheel (62) to move towards the direction away from the outer rail (1), so that the belt (41) is ensured to be in a tensioning state;

s03: the driving wheel (61) drives the belt (41) to transmit, and the belt (41) drives the curtain cloth to move in the transmission process.

10. A method of telescoping using the retractable window curtain rail of claim 1, comprising the steps of:

s01: the inner rail (2) moves towards the direction close to the outer rail (1), the sliding rope (65) is fixed at one end of the outer rail (1) and is fixed, and one end of the sliding rope (65) fixed at the outer side of the driven wheel (62) moves towards the direction close to the outer rail (1) along with the inner rail (2);

s02: the sliding rope (65) drives the driven wheel (62) to move towards the direction close to the outer rail (1) so as to ensure that the belt (41) is in a tensioning state;

s03: the driving wheel (61) drives the belt (41) to transmit, and the belt (41) drives the curtain cloth to move in the transmission process.

Technical Field

The invention relates to the field of curtain guide rails, in particular to a telescopic curtain guide rail and a telescopic method thereof.

Background

The curtain is a household article which is installed at a window to play a role in shading sun, and the wall surfaces of windows in various rooms are different in width, so that the width of the wall surface of the window needs to be measured firstly in the curtain guide rail manufacturing process, and then the corresponding curtain guide rail is manufactured according to the measured size. The curtain guide rail needs to be customized one by one, and mass industrialized production cannot be realized; in addition, the field measurement is needed, and the manpower and material resources are wasted; if errors exist in the measurement or manufacturing process, the manufactured curtain guide rail can not be used and needs to be reworked. Therefore, the traditional curtain guide rail adopts a customization method, so that the efficiency is lower, the cost is higher, and the applicability is weak.

Based on the above problems, more and more people are beginning to research the telescopic curtain guide rail, that is, the length of the curtain guide rail can be adjusted in a telescopic way, and then the telescopic curtain guide rail of one specification can be suitable for windows of a plurality of sizes. Because the telescopic curtain guide rail is still in a starting stage, the existing telescopic guide rail cannot realize the stable transition of the two rails, and even the curtain cloth cannot be switched between the two rails; meanwhile, in view of the variable length of the retractable curtain, a corresponding variable mechanism needs to be arranged to drive the curtain cloth to slide.

Simultaneously, along with the development of degree of automation, the transmission of (window) curtain more and more has practical electric drive, and the motor drives the casement and moves promptly, and at this in-process, need fix coaster and (window) curtain on the belt through the belt clamp, and then the motor drives the belt clamp, coaster and casement and moves together, and the belt clamp is fixed and can't effectively be dismantled on the belt among the prior art, need disassemble the dispersion to the system when the belt clamp needs to be removed, complex operation and inefficiency, and then reduced user experience and felt.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention aims to provide a retractable curtain rail and a method for retracting the same.

In order to achieve the purpose, the invention adopts the following technical scheme: a telescopic curtain guide rail comprises an outer rail and an inner rail, wherein the inner rail is positioned at one side of the outer rail and is nested in the outer rail;

the transmission mechanism comprises a driving wheel, a driven wheel, a first fixed pulley, a second fixed pulley, a belt and a sliding rope, wherein the driving wheel is fixed on one side of the outer rail, which is far away from the inner rail, the driven wheel is fixed at the bottom of the inner rail, the first fixed pulley and the second fixed pulley are fixed on one side of the inner rail, which is far away from the outer rail, in parallel, and the belt sequentially passes through the driving wheel, the first fixed pulley, the driven wheel and the second fixed pulley and then is wound back on the driving wheel; one end of the sliding rope is fixedly connected to the outer side of the driven wheel, and the other end of the sliding rope is connected to the inner part of the upper end of the outer rail through a third fixed pulley;

when the inner rail slides along the outer rail, the position of the sliding rope positioned on the outer side of the driven wheel is changed, so that the position of the driven wheel is driven to be changed, and the belt is ensured to be in a tensioning state.

Further, the driving wheel is connected with a motor, the belt is connected with a belt buckle and/or a hanging wheel, and the lower end of the belt buckle and/or the hanging wheel is connected with the curtain cloth; when the motor drives the driving wheel to rotate, the belt rotates around the driving wheel, the first fixed pulley, the driven wheel and the second fixed pulley, and then the curtain cloth is driven to slide.

The curtain fabric; the connecting piece comprises an L-shaped connecting block, an upper connecting plate and a lower connecting plate;

the belt buckle is a cuboid belt buckle, the front face and the rear face of the cuboid belt buckle are penetrated through by a belt, one side of the cuboid belt buckle, far away from the belt, is fixedly connected with two parallel and same L-shaped connecting blocks, the tail end of the L-shaped connecting block positioned above is connected with an upper connecting plate parallel to the side face of the cuboid belt buckle, the tail end of the L-shaped connecting block positioned below is connected with a lower connecting plate parallel to the side face of the cuboid belt buckle, and a U-shaped buckle is detachably mounted on the L-shaped connecting block and the side face of the cuboid belt buckle; when the U-shaped buckle is inserted into the belt buckle, the position of the belt buckle on the belt is fixed, and when the U-shaped buckle is pulled out of the belt buckle, the position of the belt buckle on the belt can move.

Furthermore, the lower connecting plate is a T-shaped connecting plate, the T-shaped connecting plate comprises a first connecting plate parallel to the direction of the belt and a second connecting plate perpendicular to the belt, and the pulley is fixed at the tail end of the second connecting plate;

the pulley comprises a U-shaped pulley connecting piece and a hanging piece positioned at the lower end of the U-shaped pulley connecting piece, the top end of the U-shaped pulley connecting piece is fixedly connected with the tail end of the second connecting plate, and the lower end of the hanging piece is connected with the curtain cloth; the top end of the U-shaped pulley connecting piece comprises a connecting gap, and the tail end of the second connecting plate penetrates through the connecting gap.

Furthermore, the inside recess that is perpendicular to the belt direction of motion that sets up of the side that is not connected with the connecting piece in the belt clamp, the recess evenly distributed in the inside side of belt clamp.

Furthermore, the lower part of the hanging wheel is connected with the curtain cloth and drives the curtain cloth to slide along the inner rail and the outer rail; the bottom of the inner rail comprises an inverted T-shaped slide rail, the bottom of the outer rail comprises parallel slide rails positioned on two sides of the inverted T-shaped slide rail, and the inverted T-shaped slide rail and the parallel slide rails are positioned in the same plane in the horizontal direction; the hanging wheels comprise U-shaped hanging wheel connecting pieces and hanging rings positioned at the bottoms of the U-shaped hanging wheel connecting pieces, the top ends of the two sides of each U-shaped hanging wheel connecting piece are respectively connected with rotating wheels, each rotating wheel comprises an inner rotating wheel and an outer rotating wheel, the bottoms of the inner rotating wheels are in contact with the inverted T-shaped slide rails, and the bottoms of the outer rotating wheels are in contact with the parallel slide rails; when the hanging wheels are positioned in the overlapping area of the outer rail and the inner rail, the inner rotating wheels move along the inverted T-shaped slide rails and the outer rotating wheels move along the parallel slide rails; when the hanging wheel is positioned in the outer rail area, the outer rotating wheel moves along the parallel sliding rail; when the hanging wheel is located in the inner rail area, the inner rotating wheel moves along the inverted T-shaped sliding rail.

Furthermore, the outer rail comprises a T-shaped baffle, the T-shaped baffle is positioned on one side of the parallel slide rail, which is far away from the hanging wheel, and the distance between the T-shaped baffle and the outer rotating wheel is greater than 0;

the inner rail also comprises two notch openings positioned above the inverted T-shaped sliding rail, the notch openings of the notch openings face the direction of the outer rail, a sliding cavity is formed between the two notch openings, and a belt is arranged in each notch opening; the outer end above the groove opening is connected with a first U-shaped fixing piece; a second U-shaped fixing piece matched with the first U-shaped fixing piece is arranged at the upper end of the outer rail, and the second U-shaped fixing piece is nested on the outer side of the first U-shaped fixing piece; an outer fixing plate is fixedly connected to the lower portion of the second U-shaped fixing piece, the outer fixing plate is in contact with the groove opening, and the interior of the lower end of the second U-shaped fixing piece is in contact with the exterior of the lower end of the first U-shaped fixing piece.

Further, the rotating direction of the third fixed pulley is perpendicular to the rotating directions of the first fixed pulley and the second fixed pulley.

A method for telescoping with a telescoping curtain rail, comprising the steps of:

s01: the inner rail moves towards the direction far away from the outer rail, the sliding rope is fixed at one end of the outer rail and is fixed, and one end of the sliding rope fixed at the outer side of the driven wheel moves towards the direction far away from the outer rail along with the inner rail;

s02: the sliding rope drives the driven wheel to move towards the direction far away from the outer rail, so that the belt is ensured to be in a tensioning state;

s03: the driving wheel drives the belt to transmit, and the curtain cloth is driven to move in the transmission process of the belt.

A method for telescoping with a telescoping curtain rail, comprising the steps of:

s01: the inner rail moves towards the direction close to the outer rail, the sliding rope is fixed at one end of the outer rail and is fixed, and one end of the sliding rope, which is fixed at the outer side of the driven wheel, moves towards the direction close to the outer rail along with the inner rail;

s02: the sliding rope drives the driven wheel to move towards the direction close to the outer rail, so that the belt is ensured to be in a tensioning state;

s03: the driving wheel drives the belt to transmit, and the curtain cloth is driven to move in the transmission process of the belt.

The invention has the beneficial effects that: the curtain guide rail adopts a manual mode to adjust the expansion amount of the inner rail along the outer rail, and the position of the driven wheel is changed under the driving of the sliding rope, so that a belt is ensured to be in a tensioning state; the device has the advantages of simple structure, small occupied area and convenient telescopic operation, can realize standardized batch production, further reduces the production cost, and effectively solves the transportation problem because the telescopic curtain guide rail occupies small area in the transportation process.

Drawings

FIG. 1 is an overall structure view of a telescopic guide rail according to the present invention;

FIG. 2 is a schematic structural view of a transmission mechanism in the telescopic guide rail of the present invention;

FIG. 3 is a schematic view showing the connection of a third fixed sheave according to the present invention;

FIG. 4 is a schematic structural view of a hanging wheel of the present invention located in the overlapping area of the inner rail and the outer rail;

FIG. 5 is a schematic structural view of a hanging wheel of the present invention in the outer rail area;

FIG. 6 is a schematic view showing the connection of the belt buckle, the connecting unit and the pulley according to the present invention;

FIG. 7 is a schematic sectional view showing the connection of the belt buckle, the connecting unit and the pulley according to the present invention;

reference numerals: 1. an outer rail; 11. parallel slide rails; 12. a T-shaped baffle plate; 13. a second U-shaped fixing member; 14. an outer fixing plate; 2. an inner rail; 21. an inverted T-shaped slide rail; 22. a notch opening; 23. a first U-shaped fixing member; 3. a hoisting wheel; 31. a U-shaped hanging wheel connecting piece; 32. a hoisting ring; 33. an inner rotating wheel; 34. an outer rotating wheel; 41. a belt; 51. a belt buckle; 511. a groove; 512. an L-shaped connecting block; 52. a connection unit; 521. an upper connecting plate; 522. a first connecting plate; 523. a second connecting plate; 53. a pulley; 531. a U-shaped pulley connecting piece; 532. hanging parts; 54. a U-shaped buckle; 55. a T-shaped fixed block; 61. a driving wheel; 62. a driven wheel; 63. a first fixed pulley; 64. a second fixed pulley; 65. a sliding rope; 66. a motor; 67. and a third fixed pulley.

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description below:

a telescopic curtain guide rail comprises an outer rail 1 and an inner rail 2, wherein the inner rail 2 is positioned on one side of the outer rail 1 and is nested inside the outer rail 1. Still include drive mechanism, drive mechanism includes action wheel 61, follow driving wheel 62, first fixed pulley 63, second fixed pulley 64, belt 41 and slip rope 65, wherein, action wheel 61 is fixed in the one side of outer rail 1 keeping away from inner rail 2, fix in the 2 bottoms of inner rail from driving wheel 62, first fixed pulley 63 and second fixed pulley 64 parallel are fixed in the one side of inner rail 2 keeping away from outer rail 4, belt 41 passes through action wheel 61 in proper order, first fixed pulley 63, follow driving wheel 62 and second fixed pulley 64, twine back on the action wheel 61 again. Wherein, the belt is fixed unchangeable for length and slides under the motor drives. One end of the sliding rope 65 is fixedly connected to the outer side of the driven wheel 62, and the other end of the sliding rope 65 is connected to the inner part of the upper end of the outer rail 1 through a third fixed pulley 67; the rotating direction of the third fixed pulley is perpendicular to the rotating directions of the first fixed pulley and the second fixed pulley. According to the invention, the driving wheel, the driven wheel, the first fixed pulley and the second fixed pulley are positioned in the same horizontal plane, so that the rotating directions of the first fixed pulley and the second fixed pulley are the horizontal direction rotation, namely, the belt is enabled to change the direction in the horizontal plane; the rotation direction of the third fixed pulley is vertical rotation, because one end of the sliding rope is arranged at the driven wheel, the other end of the sliding rope is arranged at the top of the outer rail, and the two sliding ropes have different heights, so that the third fixed pulley is required to fix the sliding rope in different horizontal planes. The sliding rope in the invention can be a steel wire rope or any other rope in the prior art.

In the invention, a driving wheel 61 is connected with a motor 66, a belt buckle 51 and/or a hanging wheel 3 are arranged on a belt, and the lower end of the belt buckle 51 and/or the hanging wheel 3 is connected with curtain cloth; when the motor drives the driving wheel to rotate, the belt rotates around the driving wheel, the first fixed pulley, the driven wheel and the second fixed pulley, and then the curtain cloth is driven to slide. When the curtain guide rail is arranged on the window, the motor is fixed on one side of the window. The belt buckle and the hanging wheel 3 can be connected with the curtain cloth, the belt buckle needs to be connected with the curtain cloth through the pulley, and the curtain cloth can be directly connected below the hanging wheel.

The bottom of the inner rail comprises an inverted T-shaped slide rail 21 and two notch openings 22 positioned above the inverted T-shaped slide rail 21, a certain distance is reserved between the two notch openings 22, the notches of the two notch openings 22 face the direction of the outer rail, a sliding cavity is formed in the gap between the two notch openings 22, a belt 41 is installed inside the notch openings 22, and the belt 41 can be used for transmission inside the inner rail and the outer rail. The outer ends above the two notches 22 are connected with a first U-shaped fixing piece 23, and the opening direction of the first U-shaped fixing piece 23 is arranged towards the inner part of the inner rail.

The bottom of the outer rail comprises parallel slide rails 11 positioned on two sides of an inverted T-shaped slide rail 21, the outer rail comprises a T-shaped baffle 12, the T-shaped baffle 12 is positioned on one side, far away from a hanging wheel, of the parallel slide rails 11, and the distance between the T-shaped baffle 12 and an outer rotating wheel 34 is larger than 0, so that the T-shaped baffle 12 cannot block the sliding of the hanging wheel. The upper end of the outer rail is provided with a second U-shaped fixing piece 13 matched with the first U-shaped fixing piece 23, and the second U-shaped fixing piece 13 is nested outside the first U-shaped fixing piece 23. An outer fixing plate 14 is fixedly connected to the lower portion of the second U-shaped fixing member 13, the outer fixing plate 14 contacts with one side of the notch 22, and the inner portion of the lower end of the second U-shaped fixing member 13 contacts with the outer portion of the lower end of the first U-shaped fixing member 23. Through the matching relation of the second U-shaped fixing piece 13 and the first U-shaped fixing piece 23, the inner rail is embedded in the outer rail, in the process that the inner rail moves relative to the outer rail, the inside of the lower end of the second U-shaped fixing piece 13 is in contact with the outside of the lower end of the first U-shaped fixing piece 23 all the time, the outer fixing plate 14 is in contact with one side of the notch 22 all the time, the lower end of the second U-shaped fixing piece 13 clamps the first U-shaped fixing piece 23, and the inner rail is ensured to be embedded in the outer rail all the time without influencing the movement of the inner rail.

With reference to fig. 1-2, the inverted T-shaped slide rail 21 and the parallel slide rail 11 are located in the same plane in the horizontal direction, and the gap between the inverted T-shaped slide rail 21 and the parallel slide rail 11 on both sides thereof is slightly larger than the thickness of the U-shaped connecting member. The hanging wheel comprises a U-shaped hanging wheel connecting piece 31 and a hanging ring 32 positioned at the bottom of the U-shaped hanging wheel connecting piece 31, the top ends of the two sides of the U-shaped hanging wheel connecting piece 31 are respectively connected with a rotating wheel, the rotating wheel comprises an inner rotating wheel 33 and an outer rotating wheel 34, wherein the inner rotating wheel 33 is positioned inside the U-shaped hanging ring connecting piece 31, the outer rotating wheel 34 is positioned outside the U-shaped hanging wheel connecting piece 31, so that the bottom of the inner rotating wheel 33 is in contact with the inverted T-shaped slide rail 21, and the bottom of the outer rotating wheel 34 is in contact with the parallel slide rail 11. As the hoist wheels slide along the inner and outer rails in this application, inner and outer rotatable wheels 33 and 34 slide along the inner and outer rails, respectively. Specifically, when the hanging wheel is located in the overlapping area of the outer rail and the inner rail, the inner rotating wheel 33 moves along the inverted T-shaped slide rail 21 and the outer rotating wheel 34 moves along the parallel slide rail 11; when the hanging wheel is located in the outer rail area, the outer rotating wheel 34 moves along the parallel slide rail; when the hanging wheel is located at the inner rail region, the inner rotary wheel 33 moves along the inverted T-shaped slide rail 21.

When the curtain cloth is driven by the belt fastener, the belt fastener 51 is fixedly connected with the connecting unit 52, the pulley 53 is connected below the connecting unit 52, and the curtain cloth is connected below the pulley 53.

Referring to fig. 1-2, the connection unit 52 of the present invention includes an L-shaped connection block 512, an upper connection plate 521 and a lower connection plate. The belt buckle 51 is a rectangular belt buckle, the front surface and the rear surface of the rectangular belt buckle are penetrated through by a belt, one side of the rectangular belt buckle, which is far away from the belt, is fixedly connected with two parallel and same L-shaped connecting blocks 512, wherein the parallel refers to that one end of each L-shaped connecting block 512, which is connected with the rectangular belt buckle, is parallel to each other, and the end is perpendicular to the side surface of the belt buckle 51; at the same time. The tail end of the L-shaped connecting block 512 positioned above is connected with an upper connecting plate 521 parallel to the side face of the rectangular belt buckle, the tail end of the L-shaped connecting block 512 positioned below is connected with a lower connecting plate parallel to the side face of the rectangular belt buckle, and the U-shaped buckle 54 is detachably arranged on the L-shaped connecting block 512 and the side face of the rectangular belt buckle, wherein one side of the U-shaped buckle 54 covers the tail ends of the two L-shaped connecting blocks 512 at the same time, and the other side of the U-shaped buckle covers the inner part of the side; the bottom of the U-shaped buckle 54 is positioned at the outer end of the belt buckle 51 and the L-shaped connecting block 512. The number of the U-shaped buckles 54 is two, and the U-shaped buckles are respectively positioned at two sides of the belt buckle 51. The length of the U-shaped buckle 54 covered on one side of the L-shaped connecting block 512 is less than or equal to the length covered inside the side surface of the belt buckle 51.

Referring to fig. 1-2, the lower connecting plate is a T-shaped connecting plate, the T-shaped connecting plate includes a first connecting plate 522 parallel to the belt direction and a second connecting plate 523 perpendicular to the belt, and the pulley 53 is fixed at the end of the second connecting plate 523. The pulley 53 comprises a U-shaped pulley 53 connecting piece and a hanging piece 532 positioned at the lower end of the U-shaped pulley 53 connecting piece, the top end of the U-shaped pulley 53 connecting piece is fixedly connected with the tail end of the second connecting plate 523, and the lower end of the hanging piece 532 is connected with the curtain cloth. The top end of the connecting member of the U-shaped pulley 53 includes a connecting gap, and the end of the second connecting plate 523 extends through the connecting gap.

Referring to fig. 1-2, the outer sides of the L-shaped connecting blocks 512 are fixedly connected with the T-shaped fixing blocks 55, the T-shaped fixing blocks 55 are uniformly distributed on the outer sides of the two L-shaped connecting blocks 512, and the distance from the outermost T-shaped fixing block 55 to the L-shaped connecting block 512 is equal to the length of the L-shaped connecting block 512 covered by the U-shaped buckle 54. The T-shaped fixing block 55 is used for fixing the two L-shaped connecting blocks 512, so as to ensure that the two L-shaped connecting blocks 512 are aligned permanently and are not dislocated. The number and the interval of the specific T-shaped fixing pieces can be set according to actual requirements.

Referring to fig. 1-2, the side of the buckle 51 not connected to the connecting unit 52 is provided with grooves 511 perpendicular to the moving direction of the belt 41, and the grooves 511 are uniformly distributed in the inner side of the buckle 51. The existence of the groove 511 can enable the belt buckle 51 to be better fixed on the belt 41, when the U-shaped buckle 54 is inserted, the belt buckle 51 is fixed on the belt, and due to the fact that the surface of the belt is smooth, the existence of the groove can increase the contact area between the belt and the belt buckle 51, and relative sliding between the belt and the belt buckle 51 is guaranteed not to occur.

A method for telescoping with a telescoping curtain rail, comprising the steps of:

s01: the inner rail 2 moves towards the direction far away from the outer rail 1, one end of the sliding rope 65 fixed on the outer rail 1 is fixed, and one end of the sliding rope 65 fixed on the outer side of the driven wheel 62 moves towards the direction far away from the outer rail 1 along with the inner rail 2;

s02: the sliding rope 65 drives the driven wheel 62 to move towards the direction away from the outer rail 1, so that the belt 41 is ensured to be in a tensioning state;

s03: the driving wheel 61 drives the belt 41 to transmit, and the belt 41 drives the curtain cloth to move in the transmission process.

A method for telescoping with a telescoping curtain rail, comprising the steps of:

s01: the inner rail 2 moves towards the direction close to the outer rail 1, one end of the sliding rope 65 fixed on the outer rail 1 is fixed, and one end of the sliding rope 65 fixed on the outer side of the driven wheel 62 moves towards the direction close to the outer rail 1 along with the inner rail 2;

s02: the sliding rope 65 drives the driven wheel 62 to move towards the direction close to the outer rail 1, so that the belt 41 is ensured to be in a tensioning state;

s03: the driving wheel 61 drives the belt 41 to transmit, and the belt 41 drives the curtain cloth to move in the transmission process.

The curtain guide rail adopts a manual mode to adjust the expansion amount of the inner rail along the outer rail, and the position of the driven wheel is changed under the driving of the sliding rope, so that a belt is ensured to be in a tensioning state; the device has the advantages of simple structure, small occupied area and convenient telescopic operation, can realize standardized batch production, further reduces the production cost, and effectively solves the transportation problem because the telescopic curtain guide rail occupies small area in the transportation process.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.