Sliding curtain with adjustable width

Abstract

The utility model provides a width-adjustable push-pull curtain, which belongs to the technical field of push-pull curtains, and comprises an adjustable upper rail assembly, a shading assembly, a telescopic lower rail assembly and a pull rope driving device, the adjustable upper rail assembly comprises a main body part and an adjustable part connected with the main body part, and the width of the adjustable part is adjustable; the adjustable upper rail assembly is mounted on the upper surface of a window frame; the shading assembly is mounted on the adjustable upper rail assembly; the telescopic lower rail assembly is located below the shading assembly. The telescopic lower rail assembly is connected with the shading assembly; the width of the telescopic lower rail assembly is adjustable; and the pull rope driving device is used for regulating and controlling the telescopic lower rail assembly to ascend and descend. According to the push-and-pull curtain with the adjustable width size, the upper track and the lower track of the push-and-pull curtain with the adjustable width size are each of a combined type adjustable structure, the upper track and the lower track can contract inwards according to the width of the cut curtain cloth, and width adjustment of the whole curtain is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of sliding curtain technology, and more specifically, it relates to a sliding curtain with adjustable width. Background Technology

[0002] Sliding curtains are one of the most common types of modern indoor curtains. Most sliding curtains on the market are custom-made products for users' window sizes. Due to measurement errors, if the curtain width is too large, the buyer cannot install and use it, and the seller cannot resell it. Sending it back to the factory for modification is expensive and time-consuming, causing both buyers and sellers to suffer losses in time and money. Summary of the Invention

[0003] The purpose of this invention is to provide a sliding curtain with an adjustable width, thereby solving the technical problem that the width of sliding curtains is not adjustable in the existing technology.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a sliding curtain with adjustable width, comprising:

[0005] An adjustable upper rail assembly includes a main body and an adjustable part connected to the main body, the width of which is adjustable; the adjustable upper rail assembly is used to be installed on the upper surface of a window frame;

[0006] A light-shielding component is mounted on the adjustable upper rail component;

[0007] A telescopic lower rail assembly is located below the light-shielding assembly; the telescopic lower rail assembly is connected to the light-shielding assembly; the width of the telescopic lower rail assembly is adjustable.

[0008] A pull-rope drive device is connected to the adjustable upper rail assembly, the light-shielding assembly, and the telescopic lower rail assembly. The pull-rope drive device is used to regulate the lifting and lowering of the telescopic lower rail assembly.

[0009] Preferably, the main body is a center rail; the adjustable part is a side rail; the side rail is slidably connected to the center rail: the width is adjusted by sliding the side rail inward or outward relative to the center rail.

[0010] Preferably, the main body is a plate structure; the adjustable part is a track section. The track section is connected to the plate structure; the track section includes multiple interconnected segments; the length of the track section can be adjusted by breaking off the segments.

[0011] Preferably, the adjustable part is a folding soft rail; at least one end of the main body is provided with the folding soft rail; the folding soft rail is composed of several pleats; the folding soft rail can be stretched out laterally or collapsed and stacked.

[0012] Preferably, the telescopic lower rail assembly includes:

[0013] The second inner rail has a base plate groove for connecting with the light-shielding assembly.

[0014] The second outer rail is sleeved outside the second inner rail, and the second outer rail is slidably connected to the second inner rail; the second outer rail is provided with a bottom plate positioning rib for limiting the second inner rail.

[0015] Preferably, the telescopic lower rail assembly includes:

[0016] The bracket is adapted to the rope drive device;

[0017] The outer rail is slidably connected to the bracket;

[0018] The inner rail is slidably connected to the outer rail; the inner rail is slidably connected to the bracket; the outer rail and the inner rail can slide relative to each other while the bracket remains stationary.

[0019] Preferably, it further includes a cord buckle; the cord buckle includes:

[0020] Dome-shaped buckle;

[0021] The C-shaped buckle is located above the dome buckle; the C-shaped buckle has a through-hole in the middle.

[0022] After the pull rope of the pull rope drive device passes through the bottom of the wire hole and is fixed, the dome buckle is engaged with the light-shielding component, and then the C-shaped buckle is engaged with the adjustable upper rail component to complete the bidirectional fixation of the adjustable upper rail component and the light-shielding component.

[0023] Preferably, the bottom end of the light-shielding component is inserted into the telescopic lower rail component.

[0024] Preferably, the top of the light-shielding component is inserted into the adjustable upper rail component.

[0025] The beneficial effects of this utility model's adjustable-width sliding curtain are as follows: Compared with the prior art, this utility model provides an adjustable-width sliding curtain. The upper and lower tracks of this invention are both modular adjustable structures. The upper and lower tracks can be retracted inwards according to the width of the cut curtain fabric, achieving overall curtain width adjustment and solving the problem of non-adjustable width in current spring-loaded sliding curtains. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of a sliding curtain with adjustable width provided for Embodiment 1 of this utility model;

[0028] Figure 2 An exploded view of an adjustable-width sliding curtain, as provided in Embodiment 1 of this utility model;

[0029] Figure 3 A schematic diagram of the adjustable upper track assembly used in an adjustable width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 1 ;

[0030] Figure 4 A schematic diagram of the adjustable upper track assembly used in an adjustable width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 2 ;

[0031] Figure 5 A schematic diagram of the structure of a light-blocking component used in a sliding curtain with adjustable width, provided as an embodiment of this utility model;

[0032] Figure 6 An exploded view of a telescopic bottom track assembly used in a sliding curtain with adjustable width, as provided in Embodiment 1 of this utility model;

[0033] Figure 7 A schematic diagram of the structure of a telescopic bottom track assembly used in an adjustable-width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 1 ;

[0034] Figure 8 A schematic diagram of the structure of a telescopic bottom track assembly used in an adjustable-width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 2 ;

[0035] Figure 9 A schematic diagram of the structure of a telescopic bottom track assembly used in an adjustable-width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 3 ;

[0036] Figure 10A schematic diagram of the structure of a telescopic bottom track assembly used in an adjustable-width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 4 ;

[0037] Figure 11 A schematic diagram of the structure of a telescopic bottom track assembly used in an adjustable-width sliding curtain, as provided in Embodiment 1 of this utility model. Figure 5 ;

[0038] Figure 12 An exploded view of a sliding curtain with adjustable width provided in Embodiment 2 of this utility model;

[0039] Figure 13 A schematic diagram of a sliding curtain with adjustable width provided for Embodiment 2 of this utility model;

[0040] Figure 14 A schematic diagram of the adjustable upper track assembly used in a sliding curtain with adjustable width, provided as a second embodiment of this utility model;

[0041] Figure 15 A schematic diagram of the top plate used in a sliding curtain with adjustable width provided in Embodiment 2 of this utility model;

[0042] Figure 16 A schematic diagram of the cord buckle structure used in a sliding curtain with adjustable width provided in Embodiment 2 of this utility model;

[0043] Figure 17 A schematic diagram of the adjustable upper track assembly used in an adjustable width sliding curtain, as provided in Embodiment 3 of this utility model. Figure 1 ;

[0044] Figure 18 A schematic diagram of the adjustable upper track assembly used in an adjustable width sliding curtain, as provided in Embodiment 3 of this utility model. Figure 2 ;

[0045] Figure 19 A schematic diagram of the adjustable upper track assembly used in an adjustable width sliding curtain, as provided in Embodiment 4 of this utility model. Figure 1 ;

[0046] Figure 20 A schematic diagram of the adjustable upper track assembly used in an adjustable width sliding curtain, as provided in Embodiment 4 of this utility model. Figure 2 .

[0047] In the diagram: 1. Adjustable upper rail assembly; 11. Middle rail; 12. Side rail; 13. Top surface of middle rail; 14. Side rail groove; 15. Rope buckle groove; 16. Top plate groove; 17. Top surface of side rail; 18. Support rib; 11b. Second top surface; 12b. Lower retaining rib; 13b. C-shaped groove; 14b. Side wall buckle; 15b. Track section; 11c. Third top surface; 12c. Folding flexible rail; 11d. Fourth top surface; 12d. Second track section; 13d. Baffle; 14d. Cable routing groove; 15d. Limiting groove; 16d. Side wall buckle; 2. Light-blocking assembly; 21. Top plate; 211. Upper retaining rib; 212. Rope buckle hole; 22. Curtain; 23. Bottom plate; 24. Cable hole; 3. Telescopic lower rail assembly; 31, outer rail; 311, upper sliding groove; 312, snap-fit ​​retaining rib; 313, first lower sliding groove; 314, first snap-fit ​​hole; 32, outer rail cover; 33, inner rail; 331, sliding arm; 332, bottom plate groove; 333, second lower sliding groove; 334, second snap-fit ​​hole; 34, inner rail cover; 35, snap-fit; 36, bracket; 361, limiting groove; 362, steering groove; 363, high-position sliding rib; 364, low-position sliding rib; 37, steering shaft; 31b, second outer rail; 32b, second inner rail; 33b, bottom plate positioning rib; 34b, bottom plate groove; 4, pull rope drive device; 5, rope buckle; 51, dome snap-fit; 52, C-shaped snap-fit; 53, wire hole. Detailed Implementation

[0048] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0049] Please refer to the following: Figures 1 to 20 This invention provides a sliding curtain with adjustable width. The sliding curtain includes: an adjustable upper rail assembly 1, a light-blocking assembly 2, a telescopic lower rail assembly 3, and a pull cord drive device 4. The adjustable upper rail assembly 1 includes a main body and an adjustable part connected to the main body; the width of the adjustable part is adjustable. The adjustable upper rail assembly 1 is installed on the upper surface of the window frame. The light-blocking assembly 2 is installed on the adjustable upper rail assembly 1. The telescopic lower rail assembly 3 is located below the light-blocking assembly 2 and is connected to the light-blocking assembly 2. The width of the telescopic lower rail assembly 3 is adjustable. The pull cord drive device 4 is connected to the adjustable upper rail assembly 1, the light-blocking assembly 2, and the telescopic lower rail assembly 3, and is used to control the raising and lowering of the telescopic lower rail assembly 3.

[0050] It should be noted that the pull rope drive device 4 is existing technology. Specifically, the pull rope drive device 4 is embedded in the telescopic lower rail assembly 3, and the pull ropes extending from both sides pass through the light-shielding assembly 2 and connect to the adjustable upper rail assembly 1. The pull rope drive device 4 is used to control the raising and lowering of the telescopic lower rail assembly 3.

[0051] In this embodiment, the top end of the light-shielding component 2 is inserted into the adjustable upper rail component 1. The bottom end of the light-shielding component 2 is inserted into the telescopic lower rail component 3.

[0052] In this embodiment, the width of the telescopic long rail assembly 3 corresponds one-to-one with the width of the adjustable upper rail assembly 1. Example

[0053] Please refer to the following: Figures 1 to 11 An adjustable-width sliding curtain includes: an adjustable upper rail assembly 1, a blackout assembly 2, a telescopic lower rail assembly 3, and a pull cord drive device 4. The adjustable upper rail assembly 1 includes a main body and an adjustable part connected to the main body, the width of which is adjustable. The adjustable upper rail assembly 1 is used to install on the upper surface of a window frame. The main body is a center rail 11; the adjustable part is a side rail 12. The side rails 12 are slidably connected to the center rail 11. Side rails 12 are provided at both ends of the center rail 11. The width of the adjustable upper rail assembly 1 can be adjusted by sliding the side rails 12 inwards or outwards relative to the center rail 11. The light-shielding component 2 is installed on the adjustable upper rail component 1; the telescopic lower rail component 3 is located below the light-shielding component 2; the telescopic lower rail component 3 is connected to the light-shielding component 2; the width of the telescopic lower rail component 3 is adjustable; the pull rope drive device 4 is connected to the adjustable upper rail component 1, the light-shielding component 2, and the telescopic lower rail component 3, and the pull rope drive device 4 is used to control the lifting and lowering of the telescopic lower rail component 3.

[0054] As a specific embodiment of this utility model, a push-pull curtain with adjustable width further includes: a rope buckle 5, which is used to fix the end of the pull rope to the surface of the top plate. When the top plate is inserted into the top plate groove, the rope buckle 5 is simultaneously engaged in the rope buckle groove to increase the stability of the force point and prevent the top plate from deforming and detaching from the adjustable upper rail assembly 1 due to the force applied alone.

[0055] In this embodiment, the middle rail 11 is the central main body of the adjustable upper rail assembly 1. The middle rail 11 has a top surface 13, which is flush with the upper surface of the window or door frame for easy adhesion and fixation. Please refer to [link / reference]. Figure 4The middle rail 11 has an outer enclosure structure on both sides of its cross-section. The enclosure portion is a side rail groove 14 for sliding connection with the side rail 12. A rope buckle groove 15 for fixing the rope buckle 5 is provided in the middle of the middle rail 11 cross-section. Below the rope buckle groove 15 is a top plate groove 16 for installing the top plate of the light-shielding component 2. The side rails 12 are located at both ends of the middle rail 11 and are slidably connected to the middle rail 11 within the side rail groove 14. The width of the adjustable upper rail component is adjusted by the inward sliding contraction of the two side rails 12. The side rail 12 has a top surface 17, which is flush with the top surface 13 of the middle rail, for bonding and fixing to the upper surface of the window frame and door frame. Two symmetrical support ribs 18 are provided on both sides below the top surface 17 of the side rail to enhance the strength of the side rail 12, reduce deformation, and support the sliding connection. That is, the support ribs 18 are used to reduce friction between the side rail and the middle rail and increase the strength of the side rail to reduce deformation.

[0056] As one specific embodiment of this utility model, please refer to Figure 5 The light-blocking assembly 2 includes: a top plate 21, a curtain 22, and a bottom plate 23; the top plate 21 is used to connect to the adjustable upper rail assembly 1; the top plate 21 is provided with a plurality of wire holes 24; the curtain 22 is installed on the top plate 21; the curtain 22 is used to block or adjust light; the bottom plate 23 is connected to the end of the curtain 22 away from the top plate 21; the bottom plate 23 is provided with a plurality of wire holes 24.

[0057] Specifically, the light-blocking component 2 is located below the adjustable upper rail component 1. It has a top plate 21 at its top, which is installed in a top plate groove 16 below the middle rail 11. Below the top plate 21 is a curtain 22, which includes, but is not limited to, honeycomb fabric, pleated fabric, and Venetian blinds. At the bottom of the curtain 22 is a bottom plate 23, which is installed in a bottom plate groove on the inner wall of the telescopic lower rail component 3. The top plate 21 and bottom plate 23 are strip-shaped rigid sheets, their function being to unfold the curtain 22 when the telescopic lower rail component moves downwards. The light-blocking component 2 has several wire holes 24 distributed on its left and right sides, penetrating from the top plate 21 to the bottom plate 23, for the passage of a pull cord extending from the pull cord drive device 4.

[0058] As one specific embodiment of this utility model, please refer to Figures 5 to 11The telescopic lower rail assembly 3 includes: a bracket 36, an outer rail 31, and an inner rail 33; the bracket 36 is adapted to the pull rope drive device 4; the outer rail 31 is slidably connected to the bracket 36; the inner rail 33 is slidably connected to the outer rail 31; the inner rail 33 is slidably connected to the bracket 36; the outer rail 31 and the inner rail 33 can slide relative to each other while the bracket 36 remains stationary. In this embodiment, one end of the outer rail 31 is provided with an outer rail cover 32. One end of the inner rail 33 is slidably connected to the end of the outer rail 31 opposite to the outer rail cover 32. The other end of the inner rail 33 is provided with an inner rail cover 34. The end of the outer rail 31 connected to the inner rail 33 is provided with a buckle 35. The telescopic lower rail assembly 3 is located below the light-shielding assembly 2. Specifically, the telescopic lower rail assembly 3 is mounted on the base plate 23. The telescopic lower rail assembly 3 is a double-layer telescopic structure, with an outer rail 31 and an inner rail 32. The telescopic lower rail assembly 3 also includes a bracket 36 that cooperates with the pull rope drive device 4. The outer rail 31 and inner rail 33 are slidably connected, and both are simultaneously slidably connected to the bracket 36. The outer rail 31 and inner rail 33 can slide inward relative to each other while the bracket 36 remains stationary, thus adjusting the width of the telescopic lower rail assembly 3. A buckle 35 is provided at the end where the outer rail 31 connects to the inner rail 33, and a cover is provided at the other end to prevent the base plate 23 from slipping.

[0059] More specifically, the inner walls on both sides of the outer rail 31 are provided with upper sliding grooves 311. The inner rail 33 includes a sliding arm 331. The upper sliding grooves 311 cooperate with the sliding arm 331. The bottom plate of the outer rail 31 has a first lower sliding groove 313 in the middle to cooperate with the low sliding rib 364 of the bracket 6. The bottom plate of the outer rail 31 has limiting buckle ribs 312 on both sides, and a first buckle hole 314 is provided at one edge of the outer rail. The first buckle hole 314 is adapted to the outer rail cover 32. The upper sliding grooves 311 are used to cooperate with the sliding of the inner rail sliding arm. The buckle ribs 312 are used to fix the buckle and prevent it from moving. The lower sliding grooves 313 are used to cooperate with the sliding of the inner rail and the bracket. The first buckle hole 314 is used to install the buckle.

[0060] The inner rail 33 has a sliding arm 331 on its outer side above the upper sliding groove 311 of the outer rail 31. The inner side of the inner rail 33 has a base plate groove 332 that mates with the base plate 23 of the light-shielding assembly 2. Above the base plate of the inner rail 33 is a second lower sliding groove 313 that mates with the high-position sliding rib 363 of the bracket 36. One edge of the inner rail 33 has a second snap-fit ​​hole 334. The sliding arm 331 is used to slide along the upper sliding groove of the outer rail. The base plate groove 332 is used to install the base plate. The lower sliding groove 333 is used to slide along the bracket. The second snap-fit ​​hole 334 is used to install a snap-fit.

[0061] The bracket 36 has a limiting groove 361 in the middle for connection and fixation with the pull rope drive device 4. One end of the bracket 36 has a high-position sliding rib 363 that matches the lower sliding groove 313. The other end of the bracket 36 has a low-position sliding rib 364 that matches the lower sliding groove of the outer rail. Both the high-position sliding rib 363 and the low-position sliding rib 364 have longitudinal steering grooves for mounting the steering shaft 37. The steering shaft 37 is used for changing the direction of the pull rope. The outer rail 31 is used to mount the inner rail, bracket, and base plate. The outer rail cover 32 is used to prevent the base plate from sliding off the outer rail and to obstruct the outer rail. The inner rail 33 is used to mate with the outer rail and to mount the bracket and curtain. The inner rail cover 34 is used to prevent the base plate from sliding off the inner rail and to obstruct the inner rail. A buckle 35 is used to prevent the inner and outer rails from separating. The bracket 36 provides for fixing the pull rope drive device, changing the pull rope direction, and allowing relative sliding between the inner and outer rails. Example

[0062] Please refer to the following: Figures 12 to 16 An adjustable-width sliding curtain includes: an adjustable upper rail assembly 1, a light-blocking assembly 2, a telescopic lower rail assembly 3, and a pull cord drive device 4. The adjustable upper rail assembly 1 includes a main body and an adjustable part connected to the main body, the width of which is adjustable; the adjustable upper rail assembly 1 is used to install on the upper surface of a window frame; wherein, the main body is a plate structure. The adjustable part is a track section 15b. Track sections 15b are respectively provided at both ends of the plate structure. The track section includes multiple connected segments. The length of the track section can be adjusted by breaking the segments, thereby adjusting the width of the adjustable upper rail assembly 1. The light-blocking assembly 2 is installed on the adjustable upper rail assembly 1; the telescopic lower rail assembly 3 is located below the light-blocking assembly 2; the telescopic lower rail assembly 3 is connected to the light-blocking assembly 2; the width of the telescopic lower rail assembly 3 is adjustable; the pull cord drive device 4 is connected to the adjustable upper rail assembly 1, the light-blocking assembly 2, and the telescopic lower rail assembly 3, and the pull cord drive device 4 is used to control the raising and lowering of the telescopic lower rail assembly 3.

[0063] In one specific embodiment of this utility model, the adjustable upper rail assembly 1 is located at the top of the curtain. A light-blocking assembly 2 is installed on it. The second top surface 11b of the adjustable upper rail assembly 1 can be glued to the upper surface of a window frame or door frame. The adjustable upper rail assembly 1 has a lower retaining rib 12b that cooperates with the cord buckle 5. C-shaped slots 13b that cooperate with the light-blocking assembly 2 are provided on both sides of the adjustable upper rail assembly 1. An inwardly facing side wall buckle 14b is provided below the side wall of the adjustable upper rail assembly 1, which is used to fasten the top plate 21. Several sections of the same width are provided at both ends of the main body, with adjacent sections connected together, forming a track section 15b. The side walls and C-shaped slots 13b between the sections are disconnected. The width of the adjustable upper rail assembly 1 can be shortened by breaking off several sections, thereby achieving width adjustment of the adjustable upper rail assembly 1.

[0064] In one specific embodiment of this utility model, the light-shielding component 2 is located below the adjustable upper rail component 1, and its top is a top plate 21. Below the top plate 21, a curtain 22 and a bottom plate 23 are arranged in sequence. The curtain 22 and the bottom plate 23 are the same as in Embodiment 1, so they will not be described again in this embodiment.

[0065] The top plate 21 has two upper retaining ribs 211 on its surface that engage with the C-shaped slots 13b of the adjustable upper rail assembly 1. When the upper retaining ribs 211 engage with the C-shaped slots 13b, the side wall clips 14b of the adjustable upper rail assembly 1 simultaneously fasten the edge of the top plate surface, thus completing the top plate assembly. The top plate 21 has several cord buckle holes 212 on its surface for passing through the pull cord and engaging with the cord buckle 5. The top plate 21 provides support for the curtain fabric, facilitating its unfolding and securing the cord buckle. The upper retaining ribs 211 are used to engage with the C-shaped slots of the adjustable upper rail assembly for fixation. The cord buckle holes 212 are used for passing through the pull cord and securing the cord buckle.

[0066] The rope buckle 5 includes a dome-shaped buckle 51, with a C-shaped buckle 52 above it. A through-hole 53 runs vertically through the center. After the rope passes through and is secured below the hole 53, the dome-shaped buckle 51 is pressed into the rope buckle hole 62 on the top plate and engaged. Then, the C-shaped buckle 52 is engaged with the lower retaining rib 12b of the adjustable upper rail assembly 1, completing the bidirectional fixation of the adjustable upper rail assembly 1 and the top plate 21. This increases the stability of the stress point and prevents the top plate 21 from deforming under stress and detaching from the adjustable upper rail assembly 1.

[0067] It should be noted that the telescopic lower rail assembly, the rope drive device, and the rope buckle are the same as in Embodiment 1, and therefore will not be described again. Example

[0068] Please refer to the following: Figures 17 to 18 A sliding curtain with adjustable width includes: an adjustable upper rail assembly 1, a blackout assembly 2, a telescopic lower rail assembly 3, and a pull cord drive device 4. The adjustable upper rail assembly 1 includes a main body and an adjustable part connected to the main body, the width of which is adjustable; the adjustable upper rail assembly 1 is used to install on the upper surface of a window frame; wherein, the main body is a panel structure. The adjustable part is a folding soft rail 12c. The adjustable upper rail assembly 1 is located at the top of the curtain, and the blackout assembly 2 is installed on it. The third top surface 11c of the adjustable upper rail assembly 1 can be glued to the upper surface of a window frame or door frame, and a folding soft rail 12c is provided at each of the left and right ends of the main body. The folding soft rail 12c is composed of several pleats, allowing it to be pulled open or retracted and stacked laterally. The light-shielding component 2 is installed on the adjustable upper rail component 1; the telescopic lower rail component 3 is located below the light-shielding component 2; the telescopic lower rail component 3 is connected to the light-shielding component 2; the width of the telescopic lower rail component 3 is adjustable; the pull rope drive device 4 is connected to the adjustable upper rail component 1, the light-shielding component 2, and the telescopic lower rail component 3, and the pull rope drive device 4 is used to control the lifting and lowering of the telescopic lower rail component 3.

[0069] It should be noted that the light-shielding component, telescopic lower rail component, pull rope drive device, and rope buckle are the same as in Embodiment 1, and therefore will not be described again. Example

[0070] Please refer to the following: Figures 19 to 20 A sliding curtain with adjustable width includes: an adjustable upper rail assembly 1, a blackout assembly 2, a telescopic lower rail assembly 3, and a pull cord drive device 4. The adjustable upper rail assembly 1 includes a main body and an adjustable part connected to the main body, the width of which is adjustable; the adjustable upper rail assembly 1 is used to install on the upper surface of a window frame; wherein, the main body is a panel structure. The adjustable part is a folding soft rail 12c. The adjustable upper rail assembly 1 is located at the top of the curtain, and the blackout assembly 2 is installed on it. The top surface 11c of the adjustable upper rail assembly 1 can be glued to the upper surface of a window frame or door frame, and a folding soft rail 12c is provided at each of the left and right ends of the main body. The folding soft rail 12c is composed of several pleats, allowing it to be pulled open or retracted and stacked laterally. The light-shielding component 2 is installed on the adjustable upper rail component 1; the telescopic lower rail component 3 is located below the light-shielding component 2; the telescopic lower rail component 3 is connected to the light-shielding component 2; the width of the telescopic lower rail component 3 is adjustable; the pull rope drive device 4 is connected to the adjustable upper rail component 1, the light-shielding component 2, and the telescopic lower rail component 3, and the pull rope drive device 4 is used to control the lifting and lowering of the telescopic lower rail component 3.

[0071] In one specific embodiment of this utility model, the adjustable upper rail assembly 1 is located at the top of the curtain, and the light-blocking assembly 2 is installed on it. The fourth top surface 11d of the adjustable upper rail assembly 1 can be glued to the upper surface of the window frame or door frame. Several second track sections 12d of the same width are provided at both ends of the adjustable upper rail assembly 1, and the sidewalls of the second track sections 12d are disconnected from each other. The width of the adjustable upper rail assembly 1 can be shortened by breaking several second track sections 12d, thereby achieving width adjustment. Several baffles 13d with a partitioning function are provided inside the adjustable upper rail assembly 1. Baffles are provided at the outer edges of the track sections to close the track sections, and a wiring groove 14d is provided at the lower center of the baffle 13d for the pull cord to pass through. A limiting groove 15d is provided in the center of the adjustable upper rail assembly 1, which is used to cooperate with the pull cord drive device 4. An inward sidewall buckle 16d is provided at the lower sidewall of the adjustable upper rail assembly 1 to fasten the top plate 21.

[0072] In one specific embodiment of this utility model, the telescopic lower rail assembly 3 is located below the light-shielding assembly 2 and is mounted on the base plate 23. The telescopic lower rail assembly is a double-layer telescopic rail structure, including a second outer rail 31b and a second inner rail 32b. The second outer rail 31b is provided with a base plate positioning rib 33b, which is used to limit the second inner rail 32b. The lower surface of the base plate positioning rib 33b is flush with the positioning groove 34b of the inner rail base plate to avoid a height difference between the double-layer rail of the telescopic lower rail assembly 3 and the base plate 21. The second inner rail 32b is provided with a base plate groove 34b, which is used to install the base plate 21. The base plate groove 34b is flush with the lower surface of the positioning rib 33b of the outer rail base plate to avoid a height difference between the double-layer rail of the telescopic lower rail assembly 3 and the base plate 21.

[0073] It should be noted that the light-shielding component, the pull cord drive device, and the cord buckle are the same as in Embodiment 1, so they will not be described again.

[0074] This invention provides a sliding curtain with adjustable width, which, compared with the prior art, offers a sliding curtain with adjustable width. The upper and lower tracks of this invention are both modular and adjustable structures. The upper and lower tracks can be retracted inwards according to the width of the cut curtain fabric, achieving overall curtain width adjustment and solving the problem of non-adjustable width in current spring-loaded sliding curtains.

[0075] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding curtain with adjustable width, characterized in that, include: An adjustable upper rail assembly includes a main body and an adjustable part connected to the main body, the width of which is adjustable; the adjustable upper rail assembly is used to be installed on the upper surface of a window frame; A light-shielding component is mounted on the adjustable upper rail component; A telescopic lower rail assembly is located below the light-shielding assembly; the telescopic lower rail assembly is connected to the light-shielding assembly; the width of the telescopic lower rail assembly is adjustable. A pull-rope drive device is connected to the adjustable upper rail assembly, the light-shielding assembly, and the telescopic lower rail assembly. The pull-rope drive device is used to regulate the lifting and lowering of the telescopic lower rail assembly. The telescopic lower rail assembly includes: The second inner rail has a base plate groove for connecting with the light-shielding assembly. The second outer rail is sleeved outside the second inner rail, and the second outer rail is slidably connected to the second inner rail; the second outer rail is provided with a bottom plate positioning rib for limiting the second inner rail.

2. The adjustable-width sliding curtain as described in claim 1, characterized in that, The main body is the center rail; the adjustable part is the side rail; the side rail is slidably connected to the center rail: the width is adjusted by sliding the side rail inward or outward relative to the center rail.

3. A sliding curtain with adjustable width as described in claim 1, characterized in that, The main body is a plate structure; the adjustable part is a track section, which is connected to the plate structure; the track section includes multiple connected segments; the length of the track section can be adjusted by breaking off the segments.

4. A sliding curtain with adjustable width as described in claim 1, characterized in that, The adjustable part is a folding soft rail; at least one end of the main body is provided with the folding soft rail; the folding soft rail is composed of several pleats; the folding soft rail can be stretched out laterally or collapsed and stacked.

5. A sliding curtain with adjustable width as described in claim 1, characterized in that, The telescopic lower rail assembly includes: The bracket is adapted to the rope drive device; The outer rail is slidably connected to the bracket; The inner rail is slidably connected to the outer rail; the inner rail is slidably connected to the bracket; the outer rail and the inner rail can slide relative to each other while the bracket remains stationary.

6. A sliding curtain with adjustable width as described in claim 3, characterized in that, It also includes a cord buckle; the cord buckle includes: Dome-shaped buckle; The C-shaped buckle is located above the dome buckle; the C-shaped buckle has a through-hole in the middle. After the pull rope of the pull rope drive device passes through the bottom of the wire hole and is fixed, the dome buckle is engaged with the light-shielding component, and then the C-shaped buckle is engaged with the adjustable upper rail component to complete the bidirectional fixation of the adjustable upper rail component and the light-shielding component.

7. A sliding curtain with adjustable width as described in claim 1, characterized in that, The bottom end of the light-shielding component is inserted and connected to the telescopic lower rail component.

8. A sliding curtain with adjustable width as described in claim 1, characterized in that, The top of the light-shielding component is inserted into the adjustable upper rail component.

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