A double-layered curtain

Abstract

This utility model discloses a double-layer curtain, including an inner curtain, an outer curtain, multiple connectors, and an outer rod. The rear end of each connector is provided with a sleeve. Multiple connectors are successively sleeved onto the outer rod through the sleeve. The inner curtain has multiple first openings distributed in the width direction, and the outer curtain has multiple second openings distributed in the width direction corresponding to the first openings. In use, the user can control the multiple connectors through the outer rod, so that the front ends of the multiple connectors simultaneously pass through the corresponding first and second openings. This allows the inner and outer curtains to be connected at multiple points in the horizontal direction through multiple connectors, improving the assembly efficiency of the double-layer curtain. Furthermore, this structure allows for convenient installation and disassembly, making the replacement and cleaning of the curtains more convenient and quick.

Description

Technical Field

[0001] This utility model relates to the field of curtain technology, and in particular to a double-layer curtain. Background Technology

[0002] Double-layered curtains, with their structure consisting of an inner and outer layer, offer superior light-blocking, heat insulation, and decorative effects compared to single-layered curtains, making them a widely used home décor product. To achieve synergy between the inner and outer layers, traditional manufacturing processes typically employ adhesive bonding or sewing to connect and secure them at specific locations.

[0003] However, the aforementioned traditional connection methods have significant drawbacks. While adhesive connections are simple in structure, their adhesive strength naturally diminishes over time and with the environment, causing the inner and outer layers of curtains to loosen, affecting the overall function and aesthetics of the curtains. Furthermore, tearing during separation for washing or replacement can easily damage the curtain itself. Although sewn connections are relatively secure, disassembly is extremely inconvenient, requiring the seams to be damaged to separate the two layers. This not only hinders partial replacement and independent cleaning of the curtains, reducing the product's reusability, but the seams themselves also affect the aesthetics. Additionally, the sewing process increases manufacturing complexity and production costs. Utility Model Content

[0004] In view of this, the present invention provides a double-layer curtain to solve the problem that the connection method of double-layer curtains in the prior art is difficult to simultaneously achieve simple installation, stable connection and easy disassembly and washing.

[0005] To achieve one, some, or all of the above objectives or other objectives, this utility model proposes a double-layer curtain, including an inner curtain, an outer curtain, multiple connectors, and an outer rod. The rear end of each connector is provided with a sleeve portion, and multiple connectors are successively sleeved onto the outer rod through the sleeve portion. The inner curtain has multiple first openings distributed in the width direction, and the outer curtain has multiple second openings distributed in the width direction corresponding to the first openings. The outer rod is arranged on one side of the outer curtain along the width direction of the outer curtain. The front ends of each connector pass through the corresponding first and second openings to connect the inner curtain and the outer curtain.

[0006] Preferably, the distance between two adjacent second openings in the vertical direction on the outer curtain is S, and the distance between two adjacent first openings in the vertical direction on the inner curtain is L, wherein S>L.

[0007] Preferably, a plurality of first openings distributed along the width direction of the inner curtain are grouped together, and multiple groups are distributed along the length direction of the inner curtain; a plurality of second openings distributed along the width direction of the outer curtain are grouped together, and multiple groups are distributed along the length direction of the outer curtain; the outer rod and the connector are provided in multiple quantities, and are arranged corresponding to the multiple groups of first openings and second openings.

[0008] Preferably, the inner curtain has multiple inward folds along its width direction, and the inward folds are alternately distributed between two adjacent first openings along the length direction of the inner curtain. The outer curtain has multiple outward folds along its width direction, and the outward folds are alternately distributed between two adjacent second openings along the length direction of the outer curtain.

[0009] Preferably, the connector has a through hole through which the curtain cord passes to prevent the connector from coming out of the first opening and the second opening.

[0010] Preferably, the double-layer curtain further includes an inner rod, the connector is made of rigid material, the front end of the connector has an inner hole, the rear end of the connector has an outer hole, the inner hole and the outer hole are parallel to each other, the outer hole forms a sleeve part, the rear end of the connector is sleeved onto the outer rod through the outer hole one by one, the front end of the connector passes through multiple sets of first openings and second openings distributed along the width direction of the outer curtain, and the inner rod is sleeved in multiple inner holes located on one side of the inner curtain.

[0011] Preferably, the inner hole and the outer hole are connected, and a clearance notch connecting the inner hole and the outer hole is provided on one side wall of the connector.

[0012] Preferably, the inner or outer rod is composed of multiple independent rods.

[0013] Preferably, the connector is made of a flexible material, and the connector is further provided with a through-hole for preventing it from coming out of the first opening and the second opening.

[0014] Preferably, the connector is made of a waist-shaped piece of flexible material, with notches on both sides of the end of the waist-shaped piece. The front and rear ends of the waist-shaped piece are fixedly overlapped, so that the middle part forms a sleeve for the outer rod to pass through, and the two notches on the same side of the waist-shaped piece are connected to form a through-hole.

[0015] Implementing the embodiments of this utility model will have the following beneficial effects:

[0016] With the aforementioned double-layer curtain design, users can control multiple connectors via the outer rod, allowing the front ends of these connectors to simultaneously pass through the corresponding first and second openings. This multi-point horizontal connection between the inner and outer curtain layers improves assembly efficiency. Furthermore, this structure facilitates easy installation and disassembly, making curtain replacement and cleaning quicker and easier to adapt to different seasons and decorative needs. Secondly, it eliminates the need for adhesives or sewing, reducing the complexity of the manufacturing process and production costs. Simultaneously, it offers advantages such as simple installation, stable connections, and easy washing, enhancing the user experience of double-layer curtains. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0018] in:

[0019] Figure 1 This is a perspective view of the connector in both unfolded and folded states in Embodiment 2 of this utility model;

[0020] Figure 2 This is a perspective view of the double-layered curtain in Embodiment 2 of this utility model from a frontal perspective;

[0021] Figure 3 This is a perspective view of the double-layered curtain in Embodiment 2 of this utility model from the rear view.

[0022] Figure 4 This is an exploded view of Embodiment 2 of this utility model;

[0023] Figure 5 This is a perspective view of the connector in Embodiment 1 of this utility model;

[0024] Figure 6 The three-dimensional representation of the connector, inner rod, and outer rod in Embodiment 1 of this utility model. Figure 1 ;

[0025] Figure 7 The three-dimensional representation of the connector, inner rod, and outer rod in Embodiment 1 of this utility model. Figure 2 .

[0026] In the diagram: 1. Inner curtain; 11. First opening; 12. Inner fold; 2. Outer curtain; 21. Second opening; 22. Outer fold; 3. Connector; 31. Through-hole; 32. Connecting part; 33. Inner hole; 34. Outer hole; 35. Avoidance notch; 41. Outer rod; 42. Inner rod; 5. Waist-shaped piece; 51. Notch; a. Through hole; b. Pull cord. Detailed Implementation

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1-7As shown, a double-layer curtain includes an inner curtain 1, an outer curtain 2, multiple connectors 3, and an outer rod 41. The rear end of each connector 3 is provided with a sleeve portion 32. Multiple connectors 3 are successively sleeved onto the outer rod 41 through the sleeve portion 32. The inner curtain 1 has multiple first openings 11 distributed in the width direction, and the outer curtain 2 has multiple second openings 21 distributed in the width direction corresponding to the first openings 11. The outer rod 41 is arranged on one side of the outer curtain 2 along the width direction of the outer curtain 2. The front ends of the connectors 3 pass through the corresponding first openings 11 and second openings 21 one by one to connect the inner curtain 1 and the outer curtain 2. In use, the user can control the multiple connectors 3 through the outer rod 41 so that the front ends of the multiple connectors 3 simultaneously pass through the corresponding first openings 11 and second openings 21, thereby connecting the inner curtain 1 and the outer curtain 2 at multiple points in the horizontal direction through the multiple connectors 3, improving the assembly efficiency of the double-layer curtain. Moreover, this structure can be easily installed and disassembled, making the replacement and cleaning of the curtains more convenient and quick, to adapt to different seasons and decoration needs. Secondly, it avoids the use of adhesives or sewing, reducing the complexity of the curtain manufacturing process and production costs, while also taking into account the characteristics of simple installation, stable connection and easy disassembly and washing, thus improving the user experience of double-layer curtains.

[0031] Furthermore, the distance between two adjacent second openings 21 in the vertical direction on the outer curtain 2 is S, and the distance between two adjacent first openings 11 in the vertical direction on the inner curtain 1 is L. Where S>L, when the distance S between the second openings 21 is greater than the distance L between the first openings 11, the outer curtain 2 can protrude outward and fall naturally to form a unit block. The part of the unit block that falls down can cover the gap between the first opening 11 and the second opening 21 located below it, so that the curtain maintains a good light-blocking rate and avoids light leakage.

[0032] Furthermore, multiple first openings 11 distributed along the width direction of the inner curtain 1 are grouped together, and multiple groups are distributed along the length direction of the inner curtain 1. Multiple second openings 21 distributed along the width direction of the outer curtain 2 are grouped together, and multiple groups are distributed along the length direction of the outer curtain 2. The outer rod 41 and the connector 3 are both provided with multiple openings, which are corresponding to the multiple groups of first openings 11 and second openings 21. This increases the connection points between the inner curtain 1 and the outer curtain 2 along their length direction, improves the connection stability between the two, and enhances the visual consistency of the double-layer curtains.

[0033] Furthermore, the inner curtain 1 has multiple inward folds 12 arranged along its width direction, and the inward folds 12 are alternately distributed between two adjacent first openings 11 along the length direction of the inner curtain 1. The outer curtain 2 has multiple outward folds 22 arranged along its width direction, and the outward folds 22 are alternately distributed between two adjacent second openings 21 along the length direction of the outer curtain 2. In use, the inner curtain 1 is connected to the lower part of the roller tube, and a pull cord b is connected to the roller tube. The pull cord b passes downward through multiple connectors 3 in sequence. The bottom of b is equipped with a limiting head. When the user winds up the pull cord b through the roller tube, the pull cord b will slide relative to the connector 3 until the limiting head abuts against the bottom connector 3. At this time, the pull cord b will lift the bottom connector 3 upward through the limiting head, thereby causing the inner curtain 1 and the outer curtain 2 to retract upward. During this process, the inner curtain 1 will fold upward step by step through the inner fold 12, and the outer curtain 2 will fold upward step by step through the outer fold 22, so as to achieve the regular folding and unfolding of the double-layer curtains and improve the consistency of appearance.

[0034] Furthermore, the connector 3 is provided with a through hole a through which the curtain pull cord b passes, preventing the connector 3 from disengaging from the first opening 11 and the second opening 21. The diameter of the through hole a is larger than the diameter of the pull cord b, allowing the pull cord b to easily pass through the through hole a without encountering too much resistance. This allows users to operate the curtain conveniently without the need for additional tools or equipment. Secondly, the larger diameter of the through hole a reduces the friction between the pull cord b and the connector 3, thereby reducing the force required to pull the curtain. When the user needs to open or close the curtain, they only need to gently pull the pull cord b to control the curtain without using too much force. This not only improves the user experience but also extends the service life of the pull cord b and the connector 3.

[0035] Example 1:

[0036] like Figure 5-7As shown, the double-layer curtain further includes an inner rod 42, and the connector 3 is made of rigid material. The front end of the connector 3 has an inner hole 33, and the rear end of the connector 3 has an outer hole 34. The inner hole 33 and the outer hole 34 are parallel to each other, and the outer hole 34 forms a sleeve part 32. The rear end of the connector 3 is sleeved onto the outer rod 41 one by one through the outer hole 34, and the front end of the connector 3 passes through multiple sets of first openings 11 and second openings 21 distributed along the width direction of the outer curtain 2. The inner rod 42 is sleeved in multiple inner holes 33 located on one side of the inner curtain 1. The inner rod 42 and the outer rod 41 are connected in series with multiple connectors 3 in the width direction of the double-layer curtain, and the connectors 3 are limited to prevent them from easily detaching from the first opening 11 and the second opening 21. At the same time, they are fixed and clamped to the corresponding positions of the inner curtain 1 and the outer curtain 2. During assembly, the multiple connectors 3 are first passed through the outer hole 34 onto the outer rod 41. Then, the outer rod 41 controls the front end of the multiple connectors 3 to pass through the corresponding first opening 11 and second opening 21. Finally, the inner rod 42 is passed into the inner hole 33 of the multiple connectors 3.

[0037] Furthermore, the connector 3 has a certain degree of elasticity and can be made of any material, such as metal, plastic, or fiber. In this embodiment, it is preferably made of plastic. The inner hole 33 and the outer hole 34 are connected. A clearance notch 35 is provided on one side wall of the connector 3 to connect the inner hole 33 and the outer hole 34. During assembly, the outer rod 41 can be directly inserted into the outer hole 34 through the clearance notch 35. Similarly, when the front end of the connector 3 passes through the first opening 11 and the second opening 21, the inner rod 42 can also be inserted into the inner hole 33 through the clearance notch 35, thereby avoiding frequent alignment of the holes and improving the convenience of the connection operation.

[0038] Furthermore, the inner rod 42 or the outer rod 41 is composed of multiple independent rods. Taking the inner rod 42 as an example, multiple connectors 3 can be connected in series by the integrated outer rod 41. When the connector 3 passes through the first opening 11 and the second opening 21, it can be connected to the independent rod through its respective inner hole 33. This avoids interference caused by asynchronous connection at various points during the process of the integrated inner rod 42 being connected to multiple connectors 3, which would affect the connection experience and improve the flexibility of the connection operation between the inner rod 42 and multiple connectors 3.

[0039] Example 2:

[0040] like Figure 1-4As shown, the connector 3 is made of a flexible material and is further provided with a through-hole 31 to prevent it from coming out of the first opening 11 and the second opening 21. When the user passes multiple connectors 3 through the corresponding first opening 11 and second opening 21 using the outer rod 41, the inner walls on both sides of the first opening 11 and the second opening 21 can be simultaneously engaged in the through-hole 31, thereby effectively preventing the connectors 3 from coming out of the first opening 11 and the second opening 21 and ensuring the stability and reliability of the connection between the inner curtain 1 and the outer curtain 2. The connector 3 can be implemented in various ways, such as using an elastic material to make the connector 3 so that it can return to its original shape and engage with the edge of the opening after passing through it; or setting barbs, protrusions, or other structures on the connector 3 so that it can engage with the edge of the opening. Different shapes of through-holes 31, such as round rods, I-beams, and ovals, can be selected according to the material and thickness of the curtains to increase the stability and aesthetics of the connection. Furthermore, for special occasions or needs, such as outdoor use or curtains requiring wind and water resistance, special coatings or treatments can be added to connector 3 to improve its durability and functionality. In short, by rationally designing the structure and materials of connector 3, various implementation methods can be achieved to meet diverse user needs.

[0041] Furthermore, the connector 3 is composed of a waist-shaped piece 5 made of flexible material. Both sides of the waist-shaped piece 5 are provided with notches 51. The front end and the rear end of the waist-shaped piece 5 are fixedly overlapped, so that the middle part forms a sleeve part 32 for the outer rod 41 to pass through. The two notches 51 on the same side of the waist-shaped piece 5 are connected to form the through part 31. The overlapping parts of the front end and the rear end of the waist-shaped piece 5 can be fixedly connected by adhesive or sewing. The through hole a is opened in the overlapping part. The overlapping part of the flexible material connector 3 can pass through the first opening 11 and the second opening 21 by deformation. It also helps to reduce the size of the first opening 11 and the second opening 21, which facilitates the improvement of the tightness of the fit after insertion and improves the connection stability.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A double-layered curtain, characterized in that, include: Inner curtain, outer curtain, multiple connectors and outer rod; The rear end of the connector is provided with a sleeve portion, and multiple connectors are successively sleeved onto the outer rod through the sleeve portion. The inner curtain has multiple first openings distributed in the width direction, and the outer curtain has multiple second openings distributed in the width direction corresponding to the first openings. The outer rod is arranged on one side of the outer curtain along the width direction of the outer curtain. The front end of each connector passes through the corresponding first and second openings to connect the inner curtain and the outer curtain.

2. A dual layer window treatment according to claim 1, wherein, The distance between two adjacent second openings in the vertical direction on the outer curtain is S, and the distance between two adjacent first openings in the vertical direction on the inner curtain is L, where S>L.

3. The dual shade of claim 1, wherein, Multiple first openings distributed along the width direction of the inner curtain are grouped together, and multiple groups are distributed along the length direction of the inner curtain. Multiple second openings distributed along the width direction of the outer curtain are grouped together, and multiple groups are distributed along the length direction of the outer curtain. The outer rod and the connector are provided in multiple sets, and are arranged corresponding to the multiple sets of first and second openings.

4. A dual layer window treatment according to claim 3, wherein, The inner curtain has multiple inward folds along its width direction, and the inward folds are alternately distributed between two adjacent first openings along the length direction of the inner curtain. The outer curtain has multiple outward folds along its width direction, and the outward folds are alternately distributed between two adjacent second openings along the length direction of the outer curtain.

5. The dual shade of claim 1, wherein, The connector has a through hole through which the curtain cord passes to prevent the connector from coming out of the first opening and the second opening.

6. The dual shade of claim 1, wherein, The double-layered curtains also include an inner rod; The connector is made of rigid material. The front end of the connector has an inner hole, and the rear end of the connector has an outer hole. The inner hole and the outer hole are parallel to each other. The outer hole forms a sleeve part. The rear end of the connector is sleeved onto the outer rod one by one through the outer hole. The front end of the connector passes through multiple sets of first openings and second openings distributed along the width direction of the outer curtain. The inner rod is sleeved in multiple inner holes located on one side of the inner curtain.

7. A dual layer window treatment according to claim 6, wherein, The inner hole and the outer hole are connected, and a clearance notch is provided on one side wall of the connector to connect the inner hole and the outer hole.

8. A double-layer curtain according to claim 6, characterized in that, The inner or outer rod is composed of multiple independent rods.

9. The dual shade of claim 1, wherein, The connector is made of a flexible material and is further provided with a through-hole for preventing it from coming out of the first opening and the second opening.

10. A dual layer window treatment according to claim 9, wherein, The connector is made of a waist-shaped piece of flexible material. The waist-shaped piece has notches on both sides of its end. The front and rear ends of the waist-shaped piece are fixedly overlapped, so that the middle part forms a sleeve for the outer rod to pass through. The two notches on the same side of the waist-shaped piece are connected to form the through part.

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