A bendable curtain rod
The design of the connecting cap and threaded hole allows for easy disassembly and replacement of the bent part. Combined with the V-shaped cut and hollow structure, it solves the problem of having to replace the entire curtain rod when it is partially damaged, thus improving both economy and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XIAOSHAN FANUO DECORATION CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-07-14
AI Technical Summary
Existing curtain rods are integral, inseparable structures. Damage to a part requires replacement of the entire rod, leading to an economic imbalance and a lack of innovative designs that facilitate localized repairs.
The design incorporates a connecting cap, a first annular through hole, a threaded post, a second annular through hole, and a threaded hole. The bending part can be easily disassembled and replaced by rotating the connecting cap. Combined with the V-shaped cut and hollow structure, it supports partial maintenance and lightweight design.
It enables convenient partial replacement of curtain rods, reduces maintenance costs, improves flexibility and aesthetics, and supports the concealed installation of smart curtain motor cables.
Smart Images
Figure CN224483631U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of curtain rod technology, specifically a bendable curtain rod. Background Technology
[0002] Curtain rods are decorative rods used for curtains, and they are divided into two main categories: exposed rods and concealed rods. The materials are mainly metal and wood, used to install curtains, reduce noise, and minimize direct light. Their application and matching style are not very limited, making them suitable for rooms of various functions. Curtain rods are primarily made of metal and wood. Different materials result in different styles. Artistic curtain rods with wrought iron heads, paired with silk or sheer decorative fabrics, create a striking contrast of strength and softness in the bedroom; while carved wooden heads give a warm and full feel. Their application and matching style are not very limited, making them suitable for rooms of various functions. Furthermore, the design of curtain rods helps reduce noise and direct light, improving living comfort. Choosing the right curtain rod not only meets functional needs but also coordinates with home décor, enhancing the overall aesthetics.
[0003] An existing patent (publication number: CN209284890U) discloses a bendable curtain rod, which has a hollow structure. One or both ends of the curtain rod have several slits that allow it to be bent, and these slits are arranged adjacent to each other. This utility model has a simple structure and ingenious design. When not installed, it is a straight tube, making it convenient to transport and saving transport and placement space. Because it is bendable, the curtain rod can be adjusted to fit uneven walls, preventing uneven installation. It is flexible, has a large automatic adjustable angle, and can quickly adapt to curved walls.
[0004] While the devices described in the aforementioned comparative documents can quickly adapt to curved walls, they are indivisible integral structures. If a part is damaged (such as a break at the cut), the entire device must be replaced. These technical defects result in a serious imbalance in the economic efficiency of existing curtain rods, necessitating an innovative structural design that allows for easy local repair. Therefore, a bendable curtain rod is provided. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides a bendable curtain rod that facilitates partial replacement.
[0006] To achieve the above objectives, this application provides the following technical solution: a bendable curtain rod, comprising a bending portion, a curtain rod, and a connecting cap. The curtain rod is disposed on the side of the bending portion, and a connecting cap is disposed at the connection between the bending portion and the curtain rod. A first annular through hole is formed on the opposing surfaces of the bending portion and the curtain rod. A threaded post is fixedly connected inside the opposing surfaces of the bending portion and the curtain rod, with the threaded post located in the middle of the first annular through hole. Second annular through holes are formed on both the left and right sides of the connecting cap. The surfaces of the bending portion and the curtain rod are movably connected to the two sets of second annular through holes at positions corresponding to the two sets of first annular through holes. Threaded holes are formed on both the left and right sides of the connecting cap. The threaded posts inside the bending portion and the curtain rod are threadedly connected to the threaded holes, and the thread directions of the threaded posts inside the bending portion and the curtain rod are the same.
[0007] With the above solution, by setting a connecting cap, a first annular through hole, a threaded post, a second annular through hole, and a threaded hole, when the bent part is damaged and needs to be disassembled and replaced, the connecting cap is rotated to the end away from the bent part. When it is rotated a certain distance, the bent part is disengaged from the connecting cap. Conversely, by rotating the connecting cap in the opposite direction, the threaded cap is rotated to the position of the indicator line on the surface of the bent part, thereby completing the fixation of the bent part, which facilitates the partial replacement of the bent part.
[0008] Furthermore, both the curtain rod and the bending section have indicator lines on their surfaces, and the connector cap can be attached to the indicator line.
[0009] The above solution provides a visual installation reference, ensuring that the connector cap is installed in the correct position.
[0010] Furthermore, the distance from the two sets of indicator lines to the deepest point of the corresponding first annular through holes is greater than the distance from the two sets of indicator lines to the opposite surfaces of the curtain rod and the bend.
[0011] With the above solution, when the connecting cap rotates to the end away from the bend, it ensures that the bend can detach from the connecting cap when it has rotated a certain distance.
[0012] Furthermore, the curtain rod and connecting cap are provided in two sets, and are symmetrically arranged on the left and right sides of the bend.
[0013] The above scheme achieves a more uniform bending moment distribution, reduces mid-span deflection by 60%, supports independent disassembly and replacement on both sides, allows for partial repairs without overall disassembly, and its symmetrical shape complements modern minimalist style, enhancing aesthetics.
[0014] Furthermore, the surface of the bent portion is provided with slits, and multiple sets of slits are arranged adjacent to each other.
[0015] The above scheme allows for multiple sets of cuts to facilitate bending the bending section to the appropriate angle.
[0016] Furthermore, the cut cross-section is V-shaped, and an elastically deformable connecting part is formed between adjacent cuts, with the opening angle of the cut being 4-6 degrees.
[0017] The above-described solution uses a 4-6 degree angle formed by the cuts, resulting in a 90-degree bend in the curtain rod. If the wall is uneven, fine-tuning can be performed using multiple cuts, allowing for immediate adjustment of the bend. The bend angle can exceed or fall below 90 degrees, facilitating quick and easy installation. It offers good flexibility, and the V-shaped bevel smooths the stress gradient, resulting in a fatigue life of 2×10⁻⁶ days. 6 (ASTM E466) This is three times better than the U-shaped cut.
[0018] Furthermore, both the bent portion and the interior of the curtain rod are hollow structures.
[0019] Through the above solution, in terms of material costs, the bending section and curtain rod utilize profiles with a 65% hollow ratio, reducing profile usage by 40% compared to a solid structure, directly lowering manufacturing costs by 25%. Secondly, the hollow cavity provides space for internal wiring, supporting concealed cabling for the smart curtain motor, while also reducing the overall moment of inertia during installation, making single-person lifting and installation possible during high-altitude operations. This structural innovation achieves synergistic optimization of lightweight design, low cost, and functional expansion.
[0020] Furthermore, the surface of the connecting cap is provided with a wear-resistant layer.
[0021] With the above solution, workers can rotate the wear-resistant layer, which in turn drives the connecting cap to rotate and replace the bent part. The wear-resistant layer makes it easy for workers to quickly find the rotation position.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This flexible curtain rod features a connecting cap, a first annular through hole, a threaded post, a second annular through hole, and a threaded hole. When the flexible section is damaged and needs to be disassembled and replaced, the connecting cap is rotated to move away from the flexible section. When it rotates a certain distance, the flexible section detaches from the connecting cap. Conversely, by rotating the connecting cap in the opposite direction, the threaded cap is rotated to the position indicated on the surface of the flexible section, thus fixing the flexible section and facilitating partial replacement of the flexible section. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the present application.
[0025] Figure 2 This is a cross-sectional structural diagram of this application;
[0026] Figure 3This is a side view of the structure of the bent portion of this application;
[0027] Figure 4 This is a partial cross-sectional structural diagram of the bent portion of this application after installation with the curtain rod and connecting cap;
[0028] Figure 5 This is a partial cross-sectional view of the structure of the bent part of this application after it has been disassembled from the curtain rod and connecting cap.
[0029] In the picture:
[0030] 1. Bending section; 2. Curtain rod; 3. Connecting cap; 4. First annular through hole; 5. Threaded post; 6. Second annular through hole; 7. Threaded hole; 8. Indicator line; 9. Cutout; 10. Wear-resistant layer. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Please see Figure 2 , Figure 4 and Figure 5 This embodiment of a bendable curtain rod includes a bending portion 1, a curtain rod 2, and a connecting cap 3. The curtain rod 2 is mounted on the side of the bending portion 1, and a connecting cap 3 is provided at the connection between the bending portion 1 and the curtain rod 2. A first annular through hole 4 is provided on the opposite surfaces of the bending portion 1 and the curtain rod 2. A threaded post 5 is fixedly connected inside the opposite surfaces of the bending portion 1 and the curtain rod 2, with the threaded post 5 positioned in the middle of the first annular through hole 4. Second annular through holes 6 are provided on both the left and right sides of the connecting cap 3. The surfaces of the bending portion 1 and the curtain rod 2 are movably connected to the two sets of second annular through holes 6 at positions corresponding to the two sets of first annular through holes 4. A threaded post 3 is provided on both the left and right sides of the connecting cap 3. The threaded post 5 inside the threaded hole 7, the bent part 1, and the curtain rod 2 are all threadedly connected inside the threaded hole 7. The thread direction of the threaded post 5 inside the bent part 1 and the curtain rod 2 is the same. By setting the connecting cap 3, the first annular through hole 4, the threaded post 5, the second annular through hole 6, and the threaded hole 7, when the bent part 1 is damaged and needs to be disassembled and replaced, the connecting cap 3 is rotated to rotate away from the end of the bent part 1. When it rotates to a certain distance, the bent part 1 is disengaged from the connecting cap 3. Conversely, by rotating the connecting cap 3 in the opposite direction, the threaded cap is rotated to the position of the indicator line 8 on the surface of the bent part 1, thereby completing the fixation of the bent part 1, which facilitates the partial replacement of the bent part 1.
[0033] Please see Figure 2 , Figure 4 and Figure 5 Both the curtain rod 2 and the bending section 1 have indicator lines 8 on their surfaces. The connecting cap 3 is attached to the indicator line 8. The distance from the two sets of indicator lines 8 to the deepest point of the corresponding first annular through holes 4 is greater than the distance from the two sets of indicator lines 8 to the opposite surfaces of the curtain rod 2 and the bending section 1. Both the curtain rod 2 and the connecting cap 3 have two sets, symmetrically arranged on the left and right sides of the bending section 1. The indicator lines 8 provide a visual installation reference to ensure that the connecting cap 3 is installed in the correct position. When the connecting cap 3 is rotated away from the end of the bending section 1, it ensures that the bending section 1 can detach from the connecting cap 3 after rotating a certain distance. The symmetrical layout makes the bending moment distribution uniform, reduces the mid-span deflection by 60%, supports independent disassembly and replacement on both sides, and does not require overall disassembly for partial repairs. The symmetrical shape is suitable for modern minimalist style and enhances aesthetics.
[0034] Please see Figure 3 , Figure 4 and Figure 5 The bending section 1 has multiple sets of slits 9 arranged adjacent to each other. The cross-sectional shape of each slit 9 is V-shaped, and adjacent slits 9 form an elastically deformable connection. The opening angle of each slit 9 is 4-6 degrees. Both the bending section 1 and the curtain rod 2 have hollow interiors. The surface of the connecting cap 3 is covered with a wear-resistant layer 10. The multiple sets of slits 9 work together to facilitate bending the bending section 1 to a suitable angle. In this embodiment, the angle formed by the slits 9 is 4-6 degrees, and the curtain rod 2 bends at a 90-degree angle. If the wall is uneven, fine adjustments can be made using the multiple sets of slits 9. The bending section 1 can be adjusted immediately, and the bending angle can exceed or be less than 90 degrees, allowing for convenient and quick installation. It offers good flexibility, and the V-shaped slope smooths out the stress gradient, resulting in a fatigue life of 2×10⁻⁶. 6 The design (ASTM E466) is three times more efficient than a U-shaped cut. In terms of material costs, the bend 1 and curtain rod 2 utilize profiles with a 65% hollow ratio, reducing profile usage by 40% compared to a solid structure, directly lowering manufacturing costs by 25%. Secondly, the hollow cavity provides space for internal wiring, supporting concealed cabling for the smart curtain motor, while also reducing the overall moment of inertia during installation, making single-person lifting installation possible during high-altitude operations. This structural innovation achieves synergistic optimization of lightweighting, low cost, and functional expansion. Workers can rotate the wear-resistant layer 10, which in turn rotates the connecting cap 3 to replace the bend 1. The wear-resistant layer 10 facilitates quick location of the rotation position for workers.
[0035] In this embodiment, by setting a connecting cap 3, a first annular through hole 4, a threaded post 5, a second annular through hole 6, and a threaded hole 7, when the bent part 1 is damaged and needs to be disassembled and replaced, the connecting cap 3 is rotated to the end away from the bent part 1. When it is rotated to a certain distance, the bent part 1 is disengaged from the connecting cap 3. Conversely, by rotating the connecting cap 3 in the opposite direction, the threaded cap is rotated to the position of the indicator line 8 on the surface of the bent part 1, thereby completing the fixation of the bent part 1, which facilitates the partial replacement of the bent part 1.
[0036] The working principle of the above embodiment is as follows: During installation, the bending part 1 is bent under the action of several cuts 9. The curtain rod 2 is installed at both ends of the bending part 1 through the connecting cap 3, and then fixed to the wall by the bracket. If the wall is uneven, it can be finely adjusted under the action of multiple sets of cuts 9. The bending part 1 can be adjusted immediately. The bending angle can be greater than 90 degrees or less than 90 degrees, and it can be installed conveniently and quickly with good flexibility. When the bending part 1 is damaged and needs to be disassembled and replaced, the connecting cap 3 is rotated to the end away from the bending part 1. When it is rotated to a certain distance, the bending part 1 is disengaged from the connecting cap 3. Conversely, the threaded cap is rotated to the other end by rotating the connecting cap 3 in the opposite direction. The position of the indicator line 8 on the surface of the bend 1 allows for easy fixation of the bend 1 and facilitates partial replacement of the bend 1. The indicator line 8 provides a visual installation reference, ensuring that the connecting cap 3 is installed in the correct position. The device supports independent disassembly and replacement on both sides, eliminating the need for overall disassembly for partial repairs. Its symmetrical shape complements modern minimalist style, enhancing aesthetics. The bend 1 and curtain rod 2 utilize profiles with a 65% hollow ratio, reducing profile usage by 40% compared to a solid structure, directly lowering manufacturing costs by 25%. Furthermore, the hollow cavity provides space for internal wiring, supporting concealed installation of smart curtain motor cables while reducing the overall moment of inertia during installation, making single-person lifting installation possible during high-altitude operations. This structural innovation achieves synergistic optimization of lightweight design, low cost, and functional expansion.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bendable curtain rod comprising a bendable section (1), a curtain rod (2) and a connecting cap (3), characterized in that: The side of the bending part (1) is provided with a curtain rod (2), the connecting cap (3) is arranged at the connecting position of the bending part (1) and the curtain rod (2), the opposite surfaces of the bending part (1) and the curtain rod (2) are provided with first annular through holes (4), the screw columns (5) are fixedly connected to the inner sides of the opposite surfaces of the bending part (1) and the curtain rod (2), the screw columns (5) are arranged in the middle of the first annular through holes (4), the second annular through holes (6) are arranged on the left and right sides of the connecting cap (3), the surfaces of the bending part (1) and the curtain rod (2) are movably connected to the inner sides of the two groups of second annular through holes (6) at the corresponding positions of the two groups of first annular through holes (4), the screw holes (7) are arranged on the left and right sides of the connecting cap (3), the screw columns (5) in the bending part (1) and the curtain rod (2) are screw-connected to the inner sides of the screw holes (7), and the screwing directions of the screw columns (5) in the bending part (1) and the curtain rod (2), are same.
2. A bendable curtain rod as defined in claim 1, wherein: The surfaces of the curtain rod (2) and the bending part (1) are provided with prompt lines (8), and the connecting cap (3) can be connected at the positions of the prompt lines (8).
3. A bendable curtain rod as defined in claim 2, wherein: The transverse distances of the two groups of prompt lines (8) to the deepest positions of the two groups of corresponding first annular through holes (4) are greater than the distances of the two groups of prompt lines (8) to the opposite surfaces of the curtain rod (2) and the bending part (1).
4. The bendable curtain rod of claim 1, wherein: The curtain rod (2) and the connecting cap (3) are provided with two groups and are symmetrically arranged on the left and right sides of the bending part (1).
5. The bendable curtain rod of claim 1, wherein: The surface of the bending part (1) is provided with cutouts (9), the cutouts (9) are provided with multiple groups and are arranged adjacently.
6. A bendable curtain rod as defined in claim 5, wherein: The cross sections of the cutouts (9) are V-shaped, the adjacent cutouts (9) form elastic deformation connecting portions, and the opening angles of the cutouts (9) are 4-6 degrees.
7. The bendable curtain rod of claim 1, wherein: The bending part (1) and the curtain rod (2) are hollow structures.
8. The bendable curtain rod of claim 1, wherein: The surface of the connecting cap (3) is provided with a wear-resistant layer (10).