Adjustable curtain rod

Abstract

The utility model discloses an adjustable curtain rod, belongs to the technical field of curtain accessories, and solves the problems that the mode that the curtain rod is extended to the width of a window by adopting a telescopic structure similar to a Rome rod is unreasonable, and the curtain rod needs to be matched with a roller shutter and a folding shutter to extend the length according to the width of the window. Comprising a main rod, lengthening rods are detachably connected to the two ends of the main rod in the length direction, the rod lengths of the lengthening rods can be increased, the rod lengths of the lengthening rods have a plurality of increasing modes, when the main rod rotates around the central axis of the main rod, the lengthening rods synchronously rotate around the central axis of the main rod, and the transmission ratio of the main rod to the lengthening rods is 1: 1. The rod length increasing mode of the lengthening rod comprises splicing, stretching and retracting, folding and unfolding, combination of stretching and retracting and folding and unfolding, or combination of folding and unfolding and stretching and retracting. The adjustable curtain rod is suitable for the situation that the width of a window exceeds the length of a conventional curtain rod, the length of the adjustable curtain rod can be prolonged to be matched with the size of the window, meanwhile, the adjustable curtain rod is suitable for roller shutters and folding shutters, and adaptability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of curtain accessories technology, and in particular to an adjustable curtain rod. Background Technology

[0002] Curtains are an important part of interior decoration. They not only block sunlight and protect privacy, but also effectively regulate indoor light and temperature, providing a comfortable living environment for residents. Curtains come in a variety of materials, commonly including cotton, linen, silk, and polyester, each with its unique texture and style. Curtain designs are also diverse, ranging from minimalist modern to classic luxury, catering to different home décor needs. Furthermore, the color and pattern of curtains are also important elements of interior decoration, influencing the atmosphere and mood of a room. Choosing the right curtains can not only enhance the aesthetics of a home but also showcase the resident's personality and taste.

[0003] Most curtains currently available are categorized by their opening and closing mechanism into sliding curtains, roller blinds, and folding curtains with a structure similar to Venetian blinds.

[0004] For sliding blinds, the conventional method to adjust the rod length to fit the window width is to extend a Roman rod. However, for roller blinds and folding blinds, the rod rotates to roll up the fabric, making it impossible to extend the rod length directly. Extending the rod in this way would also change the rod's diameter, making it impossible to secure the roller blind fabric to the rod. For folding blinds, the top of the fabric needs to be fixed to the rod, but the cylindrical, extendable Roman rod makes it impossible to install a cord lock. Therefore, simply using a Roman rod-like extension mechanism to extend the rod to the window width is not feasible. An adjustable rod is needed to accommodate roller blinds and folding blinds, allowing them to be extended according to the window width.

[0005] Therefore, an adjustable curtain rod is proposed to solve or alleviate the above problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable curtain rod.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An adjustable curtain rod includes a main rod, with extension rods detachably connected to both ends of the main rod along its length. The extension rods can be extended in length, and there are several extension modes for the extension rods, including splicing, telescopic, folding and unfolding, telescopic combined with folding and unfolding, or folding and unfolding combined with telescopic. When the main rod rotates around its central axis, the extension rods rotate synchronously around the central axis of the main rod, and the transmission ratio between the main rod and the extension rods is 1:1.

[0009] Preferably, when the extension rod's length growth mode is splicing, the number of extension rods located on one side of the main rod is several, and the several extension rods are detachably connected to each other to extend the rod length by splicing as the extension rod's length growth mode.

[0010] Preferably, when the extension rod's length growth mode is telescopic, the number of extension rods located on one side of the main rod is one, the distance from the central axis of the extension rod to its outer ring is different, the extension rod includes several tubular structures, the number of several tubular structures is at least two, and the several tubular structures are sequentially nested.

[0011] Preferably, when the extension rod's length growth mode is folding and unfolding, the number of extension rods located on one side of the main rod is one, and the extension rod includes several strip structures with a U-shaped cross-section, the number of the several strip structures is at least two, and the several strip structures are sequentially nested and hinged.

[0012] Preferably, when the extension rod's length growth mode is a combination of folding, unfolding, and telescopic, the number of extension rods located on one side of the main rod is a single one. The extension rod includes a strip structure with a U-shaped cross-section and several tubular structures. The number of the tubular structures is at least two, and the tubular structures are sequentially nested together. The outermost tubular structure is hinged to the strip structure.

[0013] Preferably, when the extension rod's length growth mode is a combination of telescopic and folding unfolding, the number of extension rods located on one side of the main rod is one. The extension rod includes a tubular structure and several strip structures with U-shaped cross-sections. The number of the strip structures is at least two. The strip structures are sequentially nested and hinged, and the outermost strip structure is slidably connected to the tubular structure.

[0014] Preferably, the main rod and the extension rod are detachably connected by a connector.

[0015] Preferably, the connector includes a first connector and a second connector, the first connector is fixedly connected to the end of the main rod, the second connector is fixedly connected to the end of the extension rod, and the main rod and the extension rod are detachably connected by the first connector and the second connector.

[0016] This utility model has the following beneficial effects:

[0017] In practical applications, if the width of the window is significantly longer than the conventional curtain rod length, this adjustable curtain rod can be used to extend its length as much as possible to adapt to the width of the window. Furthermore, when the curtains used are roller blinds or folding blinds, the adjustable curtain rod of this invention can also be extended in length, ensuring that it can be adapted to these two types of curtains. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0022] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0023] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0025] Figure 7 for Figure 6 Enlarged view at point D;

[0026] Figure 8 for Figure 6 Enlarged view at point E in the middle;

[0027] Figure 9 This is a schematic diagram of the structure of Embodiment 4 of this utility model;

[0028] Figure 10 for Figure 9 Enlarged view at point F;

[0029] Figure 11 for Figure 9 Enlarged view of point G in the middle;

[0030] Figure 12 This is a schematic diagram of the structure of Embodiment 5 of this utility model;

[0031] Figure 13 This is a schematic diagram of the structure of the first connecting member and the second connecting member in this utility model.

[0032] 1. Main rod; 201. First extension rod; 2011. First outer slide rod; 2012. First inner rod; 202. Second extension rod; 2021. First outer frame rod; 2022. First inner frame rod; 203. Third extension rod; 2031. Second outer slide rod; 2032. Second outer frame rod; 2033. Second inner frame rod; 204. Fourth extension rod; 2041. Third outer frame rod; 2042. Third outer slide rod; 2043. Second inner rod; 2044. Second end; 205. Fifth extension rod; 3. First connector; 301. L-shaped connecting plate; 302. Limiting shell; 303. Slide groove; 304. First connecting hole; 4. Second connector; 401. H-shaped connecting plate; 402. Second connecting hole. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] An adjustable curtain rod includes a main rod 1, with extension rods detachably connected to both ends of the main rod 1 along its length. The length of the extension rods can be increased, and there are several ways to increase the length of the extension rods. The ways to increase the length of the extension rods include splicing, telescopic, folding and unfolding, telescopic combined with folding and unfolding, or folding and unfolding combined with telescopic. When the main rod 1 rotates around its central axis, the extension rods rotate synchronously around the central axis of the main rod 1, and the transmission ratio between the main rod 1 and the extension rods is 1:1.

[0040] The main rod 1 and the extension rod are detachably connected by a connector. Specifically, the connector includes a first connector 3 and a second connector 4. The first connector is fixedly connected to the end of the main rod 1, and the second connector 4 is fixedly connected to the end of the extension rod. The main rod 1 and the extension rod are detachably connected by the first connector 3 and the second connector 4.

[0041] like Figure 13As shown, the first connector 3 includes an L-shaped connecting plate 301 and two limiting shells 302 fixedly connected to one side of the L-shaped connecting plate 301. The cross-section of the limiting shells 302 is also L-shaped. The longitudinal section of the L-shaped connecting plate 301 is L-shaped. A sliding groove 303 is formed between the two limiting shells 302. A first connecting hole 304 is provided on the surface of the L-shaped connecting plate 301, through which a bolt is inserted. The second connector 4 includes an H-shaped connecting plate 401 with an H-shaped cross-section. A second connecting hole 402 is provided on the surface of the H-shaped connecting plate 401, through which a bolt is inserted.

[0042] Therefore, when the main rod 1 and the extension rod need to be detachably connected, they can be directly detachably connected, or they can be connected through the cooperation of the first connector 3 and the second connector 4.

[0043] When the first connector 3 and the second connector 4 are required to achieve a detachable connection between the main rod 1 and the extension rod, the first connector 3 can be connected to the end face of the main rod 1 by bolting through the first connecting hole 304. The second connector 4 can also be connected to one end face of the extension rod by bolting through the second connecting hole 402. After the connection is completed, the second connector 4 is inserted into the sliding groove 303 of the first connector 3. The second connector 4 is restricted between the L-shaped connecting plate 301 and the limiting shell 302. At this time, the first connector 3 and the second connector 4 can restrict the main rod 1 and the extension rod in the length direction, so that the two cannot be separated.

[0044] Furthermore, when this utility model is to be applied in practice, if the length of a conventional curtain rod is insufficient for the width of the window, and if the curtains used are roller blinds or folding blinds, this utility model can combine the main rod 1 with the extension rod, thereby enabling the adjustable curtain rod to form an extension rod + main rod 1 + extension rod form, thus increasing its length to fit the width of the window.

[0045] If the length of the adjustable curtain rod is still insufficient for the window width, an extension rod can be used to lengthen it. It's important to note that the extension rod can be lengthened in various ways, including splicing, telescopic, folding / unfolding, a combination of telescopic and folding / unfolding, or a combination of folding / unfolding and telescopic. Therefore, different modes can be used to increase the length depending on the extension rod's characteristics. Regardless of the module used, the extension rod must rotate synchronously around the central axis of the main rod 1, with a 1:1 transmission ratio between the main rod 1 and the extension rod. Therefore, when used in roller blinds, the extension rod can rotate with the central axis of the main rod 1. When used in folding blinds, a cord lock can be installed centered at the bottom of the main rod 1, ensuring that the pull cords are symmetrically positioned on the curtain or blind. This allows the curtain rod to be lengthened even when it is smaller than the window width.

[0046] Example 1:

[0047] Preferably, when the extension rod's length growth mode is telescopic, the number of extension rods located on one side of the main rod 1 is one, the distance from the central axis of the extension rod to its outer ring is different, the extension rod includes several tubular structures, the number of several tubular structures is at least two, and the several tubular structures are sequentially nested.

[0048] Specifically, such as Figures 1 to 3 As shown, the main rod 1 has a rectangular cross-section, and the extension rod is the first extension rod 201. The main rod 1 and the first extension rod 201 are detachably connected by the first connector 3 and the second connector 4. The first extension rod 201 includes a first outer slide rod 2011 fixedly connected to the second connector 4, and a first inner rod 2012 slidably connected within the first outer slide rod 2011. The cross-sections of the first outer slide rod 2011 and the first inner rod 2012 are both polygonal, such as rectangular or square. The end of the first inner rod 2012 away from the first outer slide rod 2011 is fixedly connected to a first end. The first outer slide rod 2011 and the first inner rod 2012 are tubular structures as described above. The first outer slide rod 2011 is sleeved on the outside of the first inner rod 2012, and the distances from the central axis of the first outer slide rod 2011 and the first inner rod 2012 to their outer rings are different.

[0049] Example 2:

[0050] Preferably, when the extension rod's length growth mode is folding and unfolding, the number of extension rods located on one side of the main rod 1 is one. The extension rod includes several strip structures with a U-shaped cross-section, and the number of the strip structures is at least two. The strip structures are sequentially nested and hinged together.

[0051] Specifically, such as Figure 4 and Figure 5 As shown, the main rod 1 has a rectangular cross-section, and the extension rod is the second extension rod 202. The main rod 1 and the second extension rod 202 are detachably connected by the first connector 3 and the second connector 4. The second extension rod 202 includes a first outer frame rod 2021 fixedly connected to the second connector 4, and a first inner frame rod 2022 rotatably connected at one end inside the first outer frame rod 2021. The cross-sections of the first outer frame rod 2021 and the first inner frame rod 2022 are both U-shaped and both are strip structures. The first inner frame rod 2022 can be embedded into the first outer frame rod 2021 so that the first outer frame rod 2021 is sleeved on the outside of the first inner frame rod 2022, and the two are hinged.

[0052] Example 3:

[0053] Preferably, when the extension rod's length growth mode is a combination of telescopic and folding unfolding, the number of extension rods located on one side of the main rod 1 is a single one. The extension rod includes a tubular structure and several strip structures with U-shaped cross sections. The number of strip structures is at least two. The strip structures are sequentially nested and hinged, and the outermost strip structure is slidably connected to the tubular structure.

[0054] Specifically, such as Figures 6 to 8 As shown, the main rod 1 has a rectangular cross-section, and the extension rod is the third extension rod 203. The main rod 1 and the third extension rod 203 are detachably connected by the first connector 3 and the second connector 4. The third extension rod 203 includes a second outer slide rod 2031 fixedly connected to the second connector 4, a second outer frame rod 2032 slidably connected in the second outer slide rod 2031, and a second inner frame rod 2033 rotatably connected at one end in the second outer frame rod 2032. The second outer slide rod 2031 is a tubular structure, while the second outer frame rod 2032 and the second inner frame rod 2033 are strip structures with a U-shaped cross-section. The hinge of the second outer frame rod 2032 and the second inner frame rod 2033 allows the second inner frame rod 2033 to rotate and embed into the second outer frame rod 2032. At the same time, the second outer frame rod 2032 can also slide in the second outer slide rod 2031, thereby completing the extension rod lengthening action.

[0055] Example 4:

[0056] Preferably, when the extension rod's length growth mode is a combination of folding, unfolding, and telescopic, the number of extension rods located on one side of the main rod 1 is a single one. The extension rod includes a strip structure with a U-shaped cross-section and several tubular structures. The number of tubular structures is at least two, and the tubular structures are sequentially nested together. The outermost tubular structure is hinged to the strip structure.

[0057] Specifically, such as Figures 9 to 11As shown, the main rod 1 has a rectangular cross-section, and the extension rod is the fourth extension rod 204. The main rod 1 and the fourth extension rod 204 are detachably connected by the first connector 3 and the second connector 4. The fourth extension rod 204 includes a third outer frame fixedly connected to the second connector 4, a third outer slide rod 2042 rotatably connected to one end of the third outer frame, and a second inner rod 2043 slidably connected to the third outer slide rod 2042. The end of the second inner rod 2043 away from the third outer slide rod 2042 is fixedly connected to a second end 2044. The third outer frame is a strip structure with a U-shaped cross-section, while the third outer slide rod 2042 and the second inner rod 2043 are tubular structures that are sequentially nested to ensure that the third outer slide rod 2042 can be nested on the outside of the second inner rod 2043. At the same time, one end of the third outer slide rod 2042 is also hinged to the third outer frame, achieving the limitation that the outermost tubular structure is hinged to the strip structure.

[0058] Example 5:

[0059] Preferably, when the extension rod's length growth mode is splicing, the number of extension rods located on one side of the main rod 1 is several, and the several extension rods are detachably connected to each other to extend the rod length by splicing as the extension rod's length growth mode.

[0060] Specifically, such as Figure 12 As shown, the main rod 1 has an arc-shaped cross-section, with the arc being the dominant arc. The extension rod is the fifth extension rod 205, which has a circular cross-section. The diameters of the two ends of the main rod 1 gradually decrease. The figure shows a schematic diagram of the connection between the main rod 1 and the fifth extension rod 205, which is not shown. The outer ring of the small-diameter section at both ends of the main rod 1 is provided with a first external thread. The inner diameter of the inner ring at one end of the fifth extension rod 205 is the same as the outer diameter of the small-diameter section at both ends of the main rod 1. The inner ring at this end of the fifth extension rod 205 is provided with an internal thread that mates with the first external thread. At the same time, the diameter of the other end of the fifth extension rod 205 is also gradually decreasing. The outer diameter of this end of the fifth extension rod 205 is equal to the inner diameter of the other end. Furthermore, the outer ring at this end of the fifth extension rod 205 is provided with a second external thread that is the same as the first external thread and can also be threaded with the internal thread.

[0061] When the extension rod is spliced, the fifth extension rod 205 at one end rotates in the direction of thread tightening. This fifth extension rod 205 can then drive the other fifth extension rods 205 and the main rod 1 that are threaded to it to rotate, thereby enabling the curtain fabric to be rolled up.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable curtain rod, characterized in that, Includes a main rod (1), with extension rods detachably connected to both ends of the main rod (1) along its length. The length of the extension rods can be increased, and there are several ways to increase the length of the extension rods. The ways to increase the length of the extension rods include splicing, telescopic, folding and unfolding, telescopic combined with folding and unfolding, or folding and unfolding combined with telescopic. When the main rod (1) rotates around its central axis, the extension rods rotate synchronously around the central axis of the main rod (1), and the transmission ratio between the main rod (1) and the extension rods is 1:

1.

2. An adjustable curtain rod according to claim 1, characterized in that, When the extension rod's length growth mode is splicing, the number of extension rods located on one side of the main rod (1) is several, and the several extension rods are detachably connected to each other to extend the rod length by splicing as the extension rod's length growth mode.

3. An adjustable curtain rod according to claim 1, characterized in that, When the extension rod's length growth mode is telescopic, the number of extension rods located on one side of the main rod (1) is one. The distance from the central axis of the extension rod to its outer ring is different. The extension rod includes several tubular structures, and the number of several tubular structures is at least two. The several tubular structures are sequentially nested.

4. An adjustable curtain rod according to claim 1, characterized in that, When the extension rod is in the folding and unfolding mode, the extension rod located on one side of the main rod (1) is a single one. The extension rod includes several strip structures with a U-shaped cross section. The number of the strip structures is at least two. The strip structures are sequentially nested and hinged.

5. An adjustable curtain rod according to claim 1, characterized in that, When the extension rod's length growth mode is a combination of folding, unfolding, and telescopic, the extension rod located on one side of the main rod (1) is a single extension rod. The extension rod includes a strip structure with a U-shaped cross section and several tubular structures. The number of the tubular structures is at least two. The tubular structures are sequentially nested, and the outermost tubular structure is hinged to the strip structure.

6. An adjustable curtain rod according to claim 1, characterized in that, When the extension rod's length growth mode is a combination of telescopic and folding unfolding, the extension rod located on one side of the main rod (1) is a single extension rod. The extension rod includes a tubular structure and several strip structures with U-shaped cross sections. The number of the strip structures is at least two. The strip structures are sequentially nested and hinged. The outermost strip structure is slidably connected to the tubular structure.

7. An adjustable curtain rod according to claim 1, characterized in that, The main rod (1) and the extension rod are detachably connected by a connector.

8. An adjustable curtain rod according to claim 7, characterized in that, The connector includes a first connector (3) and a second connector (4). The first connector (3) is fixedly connected to the end of the main rod (1), and the second connector (4) is fixedly connected to the end of the extension rod. The main rod (1) and the extension rod are detachably connected by the first connector (3) and the second connector (4).

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