Multi-spring roller shutter rod structure

Abstract

The utility model relates to a multi-spring roller shutter rod structure which comprises a supporting assembly, a first spring assembly and a second spring assembly. The spring assemblies are coaxially mounted on the supporting assembly; the spring assembly comprises a spring box and a volute spiral spring; positioning openings are formed in the two opposite sides of one end of each spring box, positioning insertion pieces are connected to the two opposite sides of the other end of each spring box correspondingly, and the positioning insertion pieces are used for being inserted into the positioning openings so that the adjacent spring assemblies can be connected in series. The two opposite sides of the end, facing the spring assembly, of the first pipe support are connected with first insertion pieces correspondingly. The positioning opening of the spring assembly located at the head end is matched and embedded with the first insertion piece of the first pipe support. The multi-spring roller shutter rod structure is simple in structure and convenient to use, a plurality of spring assemblies can be freely connected to the supporting shaft in series through matching of the positioning openings and the positioning insertion pieces so as to flexibly meet the requirements of different curtain weights, the stability of spring force is kept in a high-speed operation chamber, and the stability and the service life of a roller shutter are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of spring rolling curtain rods, in particular to a multi-spring rolling curtain rod structure. Background Art

[0002] A spring rolling curtain, also known as a semi-automatic rolling curtain, gets its name because a spring device is built into the tube. It is a common decorative material for doors and windows. Its working principle is that a spring wound around a reel drives the lifting and lowering of the rolling curtain. When the user lowers the rolling curtain with a handle or a zipper, the tension on the spring decreases, the spring starts to relax, and the part of the rolling curtain on the reel gradually drops by gravity, realizing the lowering of the rolling curtain. On the contrary, when the user pulls up the rolling curtain, the tension on the spring increases, the spring starts to tighten, and the part of the rolling curtain on the reel is tightened by the spring and rises upward.

[0003] Generally, a single spring is used in a spring rolling curtain. The adjustment range of its spring force is relatively limited, making it difficult to flexibly cope with the changes in the weight of different curtains, which restricts its applicability in diverse usage scenarios. In addition, due to the design characteristics of the single spring, its adaptability at different operating speeds is also poor. When running at high speed, the spring force may become unstable, affecting the smoothness and service life of the rolling curtain. Summary of the Utility Model

[0004] Based on this, the utility model provides a multi-spring rolling curtain rod structure, which is simple in structure and convenient to use. Through the cooperation of the positioning holes and the positioning inserts, multiple spring components can be freely connected in series on the support shaft to flexibly meet the needs of different curtain weights, and maintain the stability of the spring force during high-speed operation, ensuring the smoothness and service life of the rolling curtain.

[0005] In order to achieve the purpose of the utility model, the following technical scheme is adopted:

[0006] A multi-spring rolling curtain rod structure, comprising:

[0007] A support component, including a first pipe support, a second pipe support, and a support shaft connecting the first pipe support and the second pipe support; and

[0008] A plurality of spring components coaxially installed on the support component; each spring component includes a spring box and a scroll spring installed inside the spring box; the spring box is coaxially sleeved on the support shaft, and the spring box and the support shaft can rotate relative to each other; one end of the scroll spring is connected to the spring box, and the other end of the scroll spring is connected to the support shaft; positioning holes are provided on opposite sides at one end of the spring box, and positioning inserts are respectively connected to opposite sides at the other end of the spring box. The positioning inserts are used to insert into the positioning holes to realize the series connection between adjacent spring components; first inserts are respectively connected to opposite sides at one end of the first pipe support facing the spring components; the positioning holes of the spring component at the first end match and fit with the first inserts of the first pipe support.

[0009] The above multi-spring rolling curtain rod structure is simple in structure and convenient to use. Through the cooperation of the positioning ports and the positioning inserts, multiple spring components can be freely connected in series on the support shaft to flexibly meet the needs of different curtain weights, and maintain the stability of the spring force during high-speed operation, ensuring the smoothness and service life of the rolling curtain.

[0010] In one embodiment, the spring box includes a box body and a cover plate covering one end of the box body; the scroll spring is installed inside the box body; the positioning ports are arranged on the opposite sides of the cover plate, and the positioning inserts are connected to the opposite sides of the box body.

[0011] In one embodiment, the opposite sides of the cover plate respectively have two pairs of positioning blocks arranged in pairs, and a positioning port is formed between the two positioning blocks.

[0012] In one embodiment, a first through hole is provided in the middle of the box body, and a second through hole is provided in the middle of the cover plate. The support shaft is used to pass through the first through hole and the second through hole.

[0013] In one embodiment, a slot is provided along the length direction of the support shaft, and the slot penetrates from one side of the support shaft to the other side; one end of the scroll spring is used to connect to the inner wall of the box body, and the other end of the scroll spring is clamped inside the slot to realize the connection of the scroll spring, the spring box and the support shaft.

[0014] In one embodiment, a plurality of through holes are evenly spaced along the length direction of the support shaft, and the through holes penetrate the slot; the through holes correspond to the spring components one by one, and a snap ring can be used to pass through the through holes to limit the spring component at the tail end. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the multi-spring rolling curtain rod structure according to an embodiment of the present invention;

[0016] Figure 2 is Figure 1 an exploded schematic diagram of the multi-spring rolling curtain rod structure shown;

[0017] Figure 3 is Figure 2 an exploded schematic diagram of the multi-spring rolling curtain rod structure from another perspective shown;

[0018] Figure 4 is Figure 3 an enlarged schematic diagram of the circled A shown;

[0019] Figure 5 is Figure 2 a series connection schematic diagram of the multi-spring rolling curtain rod structure shown;

[0020] Figure 6 is Figure 5Schematic three-dimensional view of the spring assembly in the multi-spring rolling curtain rod structure shown;

[0021] Figure 7 is Figure 6 Exploded schematic view of the spring assembly in the multi-spring rolling curtain rod structure shown.

[0022] Explanation of the reference numerals in the drawings:

[0023] 10 - Support assembly, 11 - First pipe support, 110 - First insert piece, 12 - Second pipe support, 13 - Support shaft, 14 - Groove, 15 - Perforation, 16 - Circlip;

[0024] 20 - Spring assembly, 21 - Spring box, 211 - Box body, 2110 - First through hole, 212 - Cover plate, 2120 - Second through hole, 213 - Positioning block, 22 - Spiral spring, 23 - Positioning port, 24 - Positioning insert piece. Detailed implementation manners

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] Please refer to Figures 1 to 7 , which is a multi-spring rolling curtain rod structure according to an embodiment of the present invention, including a support assembly 10 and a plurality of spring assemblies 20 coaxially installed on the support assembly 10.

[0029] The support assembly 10 includes a first pipe support 11, a second pipe support 12, and a support shaft 13 connecting the first pipe support 11 and the second pipe support 12. The support shaft 13 is used to carry and install the spring assembly 20, and the spring assembly 20 is located between the first pipe support 11 and the second pipe support 12. Specifically, first inserts 110 are respectively connected to opposite sides of one end of the first pipe support 11 facing the spring assembly 20, and the first inserts 110 are used to be connected to the spring assembly 20 in a matching manner.

[0030] In this embodiment, the support shaft 13 is provided with a slotted opening 14 along its length direction, and the slotted opening 14 penetrates from one side of the support shaft 13 to the other side of the support shaft 13. A plurality of perforations 15 are evenly spaced along the length direction of the support shaft 13, and the perforations 15 penetrate through the slotted opening 14. The perforations 15 are used for a circlip 16 to pass through. Among them, the perforations 15 correspond to the spring assemblies 20 one by one, that is, one perforation 15 is correspondingly provided on one side of one spring assembly 20. The circlip 16 passing through the perforations 15 can be used to limit the spring assembly 20 at the tail end to prevent loosening.

[0031] In this embodiment, the circlip 16 is an R-shaped circlip.

[0032] The spring assembly 20 includes a spring box 21 and a scroll spring 22 installed inside the spring box 21. The spring box 21 is coaxially sleeved on the support shaft 13, and the spring box 21 and the support shaft 13 can rotate relative to each other; one end of the scroll spring 22 is connected to the spring box 21, and the other end of the scroll spring 22 is connected to the support shaft 13. Among them, positioning ports 23 are provided on opposite sides of one end of the spring box 21, and positioning inserts 24 are respectively connected to opposite sides of the other end of the spring box 21. The positioning inserts 24 are used to be inserted into the positioning ports 23 to realize the series connection between adjacent spring assemblies 20. When rotating, the spring box 21 and the support shaft 13 rotate relative to each other. During this process, this rotation action will drive the scroll spring 22 to twist and curl tighter, thereby accumulating elastic potential energy. Compared with the rolling curtain rod with a single spring design, the multi-spring rolling curtain rod structure of the present utility model can freely and flexibly connect in series multiple spring assemblies 20 according to the needs of different curtain weights, and they are connected in series with each other and rotate synchronously, and can also maintain the stability of the spring force during high-speed operation, ensuring the smoothness and service life of the rolling curtain.

[0033] Please combine Figure 1 , Figure 2 and Figure 5It can be understood that multiple spring assemblies 20 can be successively butted and located between the first pipe support 11 and the second pipe support 12. Among them, the positioning port 23 of the spring assembly 20 at the head end is fitted and engaged with the first insert piece 110 of the first pipe support 11, so that the first pipe support 11 and the multiple spring assemblies 20 form a coaxial connection, and the first pipe support 11 and the spring box 21 rotate synchronously. The spring assembly 20 at the tail end passes through the perforation 15 on one side of the spring assembly 20 through the snap ring 16 to limit the position of the spring assembly 20 at the tail end and ensure that the adjacent spring assemblies 20 can be closely butted. Further, the positioning insert piece 24 of the spring assembly 20 at the tail end also abuts against the second pipe support 12 to ensure a tight connection, improve the stability during operation, and effectively reduce looseness and noise.

[0034] In this embodiment, the spring box 21 includes a box body 211 and a cover plate 212 covering one end of the box body 211; the scroll spring 22 is installed inside the box body 211, one end of the scroll spring 22 is used to connect the inner wall of the box body 211, and the other end of the scroll spring 22 is clamped inside the slot 14 to realize the connection of the scroll spring 22, the spring box 21 and the support shaft 13.

[0035] Among them, the positioning ports 23 are arranged on the opposite sides of the cover plate 212, and the positioning insert pieces 24 are connected to the opposite sides of the box body 211. Specifically, two positioning blocks 213 are respectively arranged in pairs on the opposite sides of the cover plate 212, and a positioning port 23 is formed between the two positioning blocks 213. It can be understood that in other embodiments, the positioning port 23 can also be a positioning port 23 formed by respectively inwardly recessing the opposite sides of the cover plate 212, and the formation method thereof is not limited.

[0036] A first through hole 2110 is provided in the middle of the box body 211, and a second through hole 2120 is provided in the middle of the cover plate 212. The support shaft 13 is used to pass through the first through hole 2110 and the second through hole 2120 to realize the coaxial assembly of the support shaft 13 and the spring box 21.

[0037] The above multi-spring rolling curtain rod structure is simple in structure and convenient to use. Through the cooperation of the positioning port 23 and the positioning insert piece 24, multiple spring assemblies 20 can be freely connected in series on the support shaft 13 to flexibly meet the needs of different curtain weights, and the stability of the spring force can be maintained during high-speed operation to ensure the smoothness and service life of the rolling curtain.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0039] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A multi-spring rolling curtain rod structure, characterized in that, Comprising: A support assembly, including a first pipe support, a second pipe support, and a support shaft connecting the first pipe support and the second pipe support; And A plurality of spring assemblies coaxially mounted on the support assembly; the spring assemblies include spring boxes and scroll springs installed inside the spring boxes; the spring boxes are coaxially sleeved on the support shaft, and the spring boxes and the support shaft can rotate relative to each other; one end of the scroll spring is connected to the spring box, and the other end of the scroll spring is connected to the support shaft; positioning ports are provided on opposite sides of one end of the spring box, and positioning inserts are respectively connected to opposite sides of the other end of the spring box, and the positioning inserts are used to insert into the positioning ports to achieve the series connection between adjacent spring assemblies; first inserts are respectively connected to opposite sides of one end of the first pipe support facing the spring assembly; the positioning port of the spring assembly at the head end is fitted and engaged with the first insert of the first pipe support.

2. The multi-spring rolling curtain rod structure according to claim 1, characterized in that, The spring box includes a box body and a cover plate covering one end of the box body; the scroll spring is installed inside the box body; the positioning ports are provided on opposite sides of the cover plate, and the positioning inserts are connected to opposite sides of the box body.

3. The multi-spring rolling curtain rod structure according to claim 2, characterized in that, On opposite sides of the cover plate, there are respectively two pairs of positioned blocks, and a positioning port is formed between the two positioned blocks.

4. The multi-spring rolling curtain rod structure according to claim 2, wherein A first through hole is provided in the middle of the box body, and a second through hole is provided in the middle of the cover plate, and the support shaft is used to pass through the first through hole and the second through hole.

5. The multi-spring rolling curtain rod structure according to claim 1, wherein, The support shaft is provided with a slot along the length direction of the support shaft, and the slot penetrates from one side of the support shaft to the other side; one end of the scroll spring is used to connect to the inner wall of the box body, and the other end of the scroll spring is clamped inside the slot to realize the connection between the scroll spring, the spring box and the support shaft.

6. The multi-spring rolling curtain rod structure according to claim 5, characterized in that, A plurality of through holes are evenly spaced along the length direction of the support shaft, and the through holes penetrate the slot; the through holes correspond to the spring assemblies one by one, and a snap ring passing through the through holes can be used to limit the spring assembly at the tail end.

Images