Roller shutter capable of being adjusted and expanded

Abstract

The utility model discloses a roller shutter capable of being adjusted and expanded, and relates to the technical field of roller shutters, the roller shutter capable of being adjusted and expanded comprises two rolling shafts, each through hole is internally and fixedly provided with a limiting block, and a connecting mechanism comprises a connecting shaft, a shutter body II, a limiting groove and a sliding ring. When the width of the whole curtain body formed by the second curtain body and the first curtain body is adjusted, the limiting screw rod is rotated to be far away from the limiting groove, and the two reels are pushed to reduce the width of the whole curtain body formed by the second curtain body and the first curtain body; at the moment, a limiting screw rod is rotated, so that the limiting screw rod is tightly attached to the inner wall of a limiting groove, the position of a connecting shaft in a through hole is fixed, the width of the whole roller shutter body formed by the second roller shutter body and the first roller shutter body is fixed, and the width of the whole roller shutter body is adjusted within a certain range so that the width of the whole roller shutter body can be reduced or expanded; the window width is conveniently adapted, and the roller shutter function and applicability are prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling blinds, in particular to an adjustable and expandable rolling blind. Background Art

[0002] Roller blinds are a type of window decoration product. The curtain fabric is processed with resin and rolled into a roller shape. It is raised and lowered by a pull rope or chain. It is simple and convenient to operate, has a beautiful and simple appearance, and makes the window frame look clean and neat.

[0003] The roller blinds can be adjusted upward to adapt to the length of the window, but when the width of the window does not match the fixed width of the roller blinds, the roller blinds cannot completely cover the window or cannot be installed. When the roller blinds cannot completely cover the window, the sunshade and other functions of the roller blinds are affected. When the roller blinds cannot be installed due to a small gap in the width of the window, the applicability of the roller blinds is reduced. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an adjustable and extendable rolling blind, which solves the technical problems that when the rolling blind cannot completely cover the window, the sunshade function of the rolling blind is affected; and when the rolling blind cannot be installed due to a small gap in width with the window, the applicability of the rolling blind is reduced.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A roller blind that can be adjusted and extended comprises two rollers, each of which is fixedly connected to a curtain body 1 on the outside, through holes are provided on the outsides of the two rollers, a limiting block is fixedly installed on the inside of each through hole, a connecting mechanism is provided on the adjacent sides of the two rollers, the connecting mechanism comprises a connecting shaft, a curtain body 2, a limiting groove and a sliding ring, two ends of the connecting shaft are respectively slidably connected to the insides of the two through holes, the curtain body 2 is fixedly connected to the outside of the connecting shaft, the curtain body 2 is located between the two curtain bodies 1, the limiting groove is provided on the outside of the connecting shaft, the limiting block is slidably connected to the inside of the limiting groove, there are two sliding rings, both of which are slidably connected to the outside of the connecting shaft, a threaded hole is provided on the outside of each roller, the threaded hole is communicated with the through hole, and a limiting screw is threadedly connected to the inside of each threaded hole.

[0009] The lower end of each curtain body 1 is fixedly connected to a lower rod, and the lower end of the curtain body 2 is fixedly connected to two mounting rings, the two mounting rings are located between the two lower rods, a mounting hole is provided on one side close to each lower rod, a mounting shaft is slidably connected inside the mounting hole, the two mounting rings are slidably connected to the outside of the mounting shaft, and limit plates are fixedly installed at both ends of the mounting shaft, a long groove is provided inside each mounting hole, and the limit plate is slidably connected to the inside of the long groove.

[0010] Preferably, a thread groove is formed on the outside of each lower rod, the thread groove communicates with the inside of the mounting hole, a fixing screw is threadedly connected to the inside of each thread groove, and the fixing screw fits with the outside of the mounting shaft.

[0011] Preferably, each threaded hole has an internal built-in groove, and the limiting screw is slidably connected to the internal built-in groove.

[0012] (III) Beneficial effects

[0013] 1. By setting curtain body one and cooperating with curtain body two, when adjusting the width of the overall curtain body formed by curtain body two and curtain body one, the limiting screw is rotated to make the limiting screw away from the limiting groove. At this time, the two rollers are pushed to reduce the width of the overall curtain body formed by curtain body two and curtain body one. At this time, the limiting screw is rotated to make the limiting screw fit tightly with the inner wall of the limiting groove to fix the connecting shaft in the position inside the through hole. At this time, the width of the overall curtain body formed by curtain body two and curtain body one is fixed. The overall width of the rolling curtain can be reduced or expanded by adjusting the overall width of the rolling curtain within a certain range, so as to adapt to the width of the window and avoid affecting the function and applicability of the rolling curtain.

[0014] 2. By setting the lower rod and cooperating with the installation shaft, when adjusting the overall width of the curtain body, the fixing screw is rotated so that the fixing screw no longer fits with the outside of the installation shaft. At this time, the lower ends of the curtain body 2 and the curtain body 1 can be adjusted along with the curtain body 2 and the curtain body 1. When the adjustment is completed, the fixing screw is rotated so that the fixing screw fits tightly with the outside of the installation shaft. At this time, the length between the two lower rods and the installation shaft is fixed, which is convenient for fixing the lower end of the curtain body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 For this utility model Figure 1 The structural diagram of the middle curtain body 2;

[0018] Figure 3For this utility model Figure 2 The cross-sectional structure diagram of the middle and lower rod;

[0019] Figure 4 For this utility model Figure 2 A magnified structural diagram of the middle part;

[0020] Figure 5 For this utility model Figure 2 A magnified structural diagram of B.

[0021] Legend: 1. Reel; 2. Curtain body 1; 3. Through hole; 4. Limit block; 5. Connecting shaft; 6. Curtain body 2; 7. Limit groove; 8. Sliding ring; 9. Threaded hole; 10. Limit screw; 11. Lower rod; 12. Mounting ring; 13. Mounting hole; 14. Mounting shaft; 15. Limit plate; 16. Long groove; 17. Threaded groove; 18. Fixing screw; 19. Built-in groove. DETAILED DESCRIPTION

[0022] The embodiments of the present application provide an adjustable and extendable roller blind, which effectively solves the technical problems that when the roller blind cannot completely cover the window, the sunshade function of the roller blind is affected; and when the roller blind cannot be installed due to a small gap in width between the roller blind and the window, the applicability of the roller blind is reduced.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The technical solution in the embodiment of the present application effectively solves the technical problem that when the roller blind cannot completely cover the window, the sunshade function of the roller blind is affected, and when the roller blind cannot be installed due to the small gap in width with the window, the applicability of the roller blind is reduced. The overall idea is as follows:

[0025] In view of the problems existing in the prior art, the utility model provides an adjustable and expandable rolling curtain, which comprises two rolling shafts 1, the outside of each rolling shaft 1 is fixedly connected with a curtain body 2, the outsides of the two rolling shafts 1 are provided with through holes 3, the inside of each through hole 3 is fixedly installed with a limiting block 4, a connecting mechanism is arranged on the adjacent side of the two rolling shafts 1, the connecting mechanism comprises a connecting shaft 5, a curtain body 6, a limiting groove 7 and a sliding ring 8, the two ends of the connecting shaft 5 are respectively slidably connected to the inside of the two through holes 3, the curtain body 6 is fixedly connected to the outside of the connecting shaft 5, the curtain body 6 is located between the two curtain bodies 2, the limiting groove 7 is provided on the outside of the connecting shaft 5, the limiting block 4 is slidably connected to the inside of the limiting groove 7, there are two sliding rings 8, the two sliding rings 8 are slidably connected to the outside of the connecting shaft 5, and the curtain body 2 is fixedly connected to the outside of the connecting shaft 5. A threaded hole 9 is provided on the outside, which is communicated with the through hole 3. The interior of each threaded hole 9 is threadedly connected with a limiting screw 10. By setting the curtain body 1 2 and cooperating with the curtain body 2 6, when the width of the entire curtain body formed by the curtain body 2 6 and the curtain body 1 2 is adjusted, the limiting screw 10 is rotated to make the limiting screw 10 away from the limiting groove 7. At this time, the two rollers 1 are pushed to reduce the width of the entire curtain body formed by the curtain body 2 6 and the curtain body 1 2. At this time, the limiting screw 10 is rotated to make the limiting screw 10 fit tightly with the inner wall of the limiting groove 7 to fix the connecting shaft 5 in the position inside the through hole 3. At this time, the width of the entire curtain body formed by the curtain body 2 6 and the curtain body 1 2 is fixed. The width of the entire curtain body formed by the curtain body 2 6 and the curtain body 1 2 is adjusted within a certain range to reduce or expand the width of the entire curtain body, so as to adapt to the width of the window and avoid affecting the function and applicability of the curtain.

[0026] The lower end of each curtain body 2 is fixedly connected to a lower rod 11, and the lower end of the curtain body 2 is fixedly connected to two mounting rings 12. The two mounting rings 12 are located between the two lower rods 11, which is a structure for connecting the curtain body 2 and the curtain body 2. A mounting hole 13 is provided on a side close to each lower rod 11, and a mounting shaft 14 is slidably connected inside the mounting hole 13. The two mounting rings 12 are slidably connected to the outside of the mounting shaft 14 to facilitate adjustment of the position between the mounting shaft 14 and the lower rod 11. Limiting plates 15 are fixedly installed on both ends of the mounting shaft 14. A long groove 16 is provided inside each mounting hole 13, and the limiting plate 15 is slidably connected inside the long groove 16 to prevent the mounting shaft 14 from being disconnected from the mounting hole 13. A screw is provided on the outside of each lower rod 11. The groove 17 is communicated with the inside of the mounting hole 13, and the inside of each thread groove 17 is threadedly connected with a fixing screw 18, which fits with the outside of the mounting shaft 14 to fix the length formed by the lower rod 11 and the mounting shaft 14. By setting the lower rod 11 and cooperating with the mounting shaft 14, when the overall width of the curtain body is adjusted, the fixing screw 18 is rotated so that the fixing screw 18 no longer fits with the outside of the mounting shaft 14. At this time, the lower ends of the curtain body 2 6 and the curtain body 1 2 can be adjusted along with the curtain body 2 6 and the curtain body 1 2. When the adjustment is completed, the fixing screw 18 is rotated so that the fixing screw 18 fits tightly with the outside of the mounting shaft 14. At this time, the length between the two lower rods 11 and the mounting shaft 14 is fixed, which is convenient for fixing the lower end of the curtain body.

[0027] Each threaded hole 9 is provided with a built-in groove 19 , and the limiting screw 10 is slidably connected inside the built-in groove 19 to prevent the limiting screw 10 from affecting the winding of the curtain body 2 .

[0028] Working principle:

[0029] The first step is to set the curtain body 1 2 and match the curtain body 2 6. When adjusting the width of the curtain body formed by the curtain body 2 6 and the curtain body 1 2, the limiting screw 10 is rotated to make the limiting screw 10 away from the limiting groove 7. At this time, the fixing screw 18 is rotated so that the fixing screw 18 is no longer in contact with the outside of the installation shaft 14. At this time, the lower ends of the curtain body 2 6 and the curtain body 1 2 can be adjusted along with the curtain body 2 6 and the curtain body 1 2. At this time, the two reels 1 are pushed to reduce the width of the curtain body formed by the curtain body 2 6 and the curtain body 1 2. At this time, the limiting screw 10 is rotated to make the limiting screw 10 closely fit with the inner wall of the limiting groove 7 to fix the connecting shaft 5 in the internal position of the through hole 3. At this time, the upper end of the curtain body as a whole is fixed;

[0030] The second step is to set the lower rod 11 to match the installation shaft 14. After the adjustment is completed, the fixing screw 18 is rotated to make the fixing screw 18 fit tightly with the outside of the installation shaft 14. At this time, the length between the two lower rods 11 and the installation shaft 14 is fixed.

[0031] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An adjustable and expandable roller blind, comprising two rollers (1), each roller (1) being fixedly connected to a curtain body (2) on its exterior, characterized in that: The two reels (1) are provided with through holes (3) on their exteriors, a limit block (4) is fixedly installed inside each through hole (3), and a connecting mechanism is provided on the adjacent sides of the two reels (1); The connecting mechanism comprises a connecting shaft (5), a second curtain body (6), a limiting groove (7) and a sliding ring (8); The two ends of the connecting shaft (5) are respectively slidably connected to the inside of the two through holes (3); the second curtain body (6) is fixedly connected to the outside of the connecting shaft (5); the second curtain body (6) is located between the two first curtain bodies (2); the limiting groove (7) is provided on the outside of the connecting shaft (5); the limiting block (4) is slidably connected to the inside of the limiting groove (7); there are two sliding rings (8); and both sliding rings (8) are slidably connected to the outside of the connecting shaft (5); A threaded hole (9) is formed on the outside of each reel (1), the threaded hole (9) is communicated with the through hole (3), and a limiting screw (10) is threadedly connected to the inside of each threaded hole (9).

2. The adjustable and extendable roller blind according to claim 1, characterized in that: The lower end of each curtain body (2) is fixedly connected to a lower rod (11); The lower end of the second curtain body (6) is fixedly connected to two mounting rings (12), and the two mounting rings (12) are located between the two lower rods (11).

3. An adjustable and extendable roller blind as claimed in claim 2, characterized in that: A mounting hole (13) is provided on a proximal side of each lower rod (11), and a mounting shaft (14) is slidably connected inside the mounting hole (13); The two mounting rings (12) are slidably connected to the outside of the mounting shaft (14).

4. The adjustable and extendable roller blind according to claim 3, characterized in that: Limiting plates (15) are fixedly mounted on both ends of the mounting shaft (14), and a long groove (16) is provided inside each mounting hole (13); The limiting plate (15) is slidably connected inside the long groove (16).

5. The adjustable and extendable roller blind according to claim 2, characterized in that: A threaded groove (17) is formed on the outside of each lower rod (11), the threaded groove (17) is communicated with the inside of the mounting hole (13), and a fixing screw (18) is threadedly connected to the inside of each threaded groove (17); The fixing screw (18) is fitted with the outside of the mounting shaft (14).

6. The adjustable and extendable roller blind according to claim 1, characterized in that: Each of the threaded holes (9) is provided with a built-in groove (19); The limiting screw (10) is slidably connected inside the built-in groove (19).

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