High-closeness shutter
By independently designing the flap-turning and lifting components, and combining the clutch device of the torsion spring and the flap-turning wheel shaft, the problem of mutual interference between the existing louver flap-turning and lifting functions has been solved, achieving precise control of flap-turning and lifting, and improving the user experience and equipment stability.
Patent Information
- Application Number
- CN202520450582.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The existing venetian blinds have a close connection between their slat opening and lifting functions, making it difficult for users to accurately control the slat opening angle and lifting height, which affects the user experience.
The design employs independent blade-flipping and lifting components. By separating the control of the blade-flipping rope and the lifting rope, and combining the clutch device of the torsion spring and the blade-flipping wheel shaft, the independent operation of the blade-flipping and lifting functions can be achieved.
It achieves efficient separation of the louver flipping and lifting functions, allowing users to precisely control the flipping angle and lifting height of the louvers, thus improving operational stability and service life.
Smart Images
Figure CN223867919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building door and window technology, and in particular to a high-closure louver. Background Technology
[0002] Venetian blinds are a type of window originating in China. Ancient Chinese architecture featured straight-lattice windows, used from the Warring States period to the Han Dynasty. These windows with vertical lattice bars are called straight-lattice windows, while those with horizontal lattice bars are called horizontal-lattice windows. The horizontal-lattice window is a primitive form of venetian blinds, or you could say it represents the original state of venetian blinds.
[0003] Currently used louvers typically consist of a frame, louver blades, and a lifting assembly. Waist-shaped holes are opened at both ends of the louvers along their width to allow the pull cord to rotate the louvers, thereby changing the blade angle and adjusting the lighting and ventilation.
[0004] Most existing Venetian blinds have closely linked slat-opening and lifting functions. When users adjust the blinds, the blinds will simultaneously rise and fall. Existing Venetian blinds make it difficult to achieve efficient separation of slat-opening and lifting functions. Different functions are prone to interference with each other, which can make it difficult for users to accurately control the slat-opening angle and lifting height when adjusting the blinds, thus affecting the user experience. Therefore, a Venetian blind with high closure is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a highly closureable louver, which aims to improve the problem in the prior art where the louvers and the lifting and lowering are carried out simultaneously, making it impossible to accurately control the flipping angle and lifting height, thus affecting the user experience.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A highly closureable louver includes a bottom frame, the top of which is fixedly connected to two folded edge beams, one of which has a folded edge groove in the middle, and a flap-turning assembly is installed inside the folded edge groove. The top of the folded edge beam is fixedly connected to an upper frame, and a lifting assembly is installed inside the upper frame.
[0008] The leaf-turning assembly includes a leaf-turning rope flipping component, which is fixedly connected inside the folded edge groove. A flipping bearing is rotatably connected to the middle of the leaf-turning rope flipping component, and a leaf-turning rope is sleeved on the outside of the flipping bearing. A compression spring is sleeved on the outside of the leaf-turning rope flipping component.
[0009] As a further description of the above technical solution:
[0010] The blade-turning assembly also includes a mounting frame, which is fixedly connected to the inside of the upper frame. A side shaft is rotatably connected to the middle of the mounting frame. A torsion spring is sleeved on the outer periphery of the side shaft. A blade-turning wheel shaft is fixedly connected to the outside of the side shaft. The blade-turning pull rope is wound around the outside of the blade-turning wheel shaft. A baffle is fixedly connected to the middle of the mounting frame.
[0011] As a further description of the above technical solution:
[0012] The lifting assembly includes two flapping central shafts, which are rotatably connected inside the upper frame. D-shaped iron wires are provided on the outside of the flapping central shafts, and one end of the D-shaped iron wires is fixedly connected to the outside of the side shaft.
[0013] As a further description of the above technical solution:
[0014] The inner side of the folded edge beam is fixedly connected to the top cover, and the inner side of the folded edge beam is provided with louvers.
[0015] As a further description of the above technical solution:
[0016] The inside of the folded edge groove is slidably connected to a lifting slider, and the end of the lifting slider is provided with a lifting rope, which is wrapped around the outside of the louver.
[0017] As a further description of the above technical solution:
[0018] Both of the aforementioned folded edge beams are fixedly connected to the outside of edge beams;
[0019] As a further description of the above technical solution:
[0020] A fixing block is fixedly connected inside the upper frame, and a rotating shaft is rotatably connected inside the fixing block;
[0021] As a further description of the above technical solution:
[0022] The lifting rope is sleeved on the outside of the rotating shaft.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the lifting slider is controlled by the external handle to drive the leaf-turning rope, thereby realizing the flipping of the high-closed louver blades, shortening the handle stroke, making it shorter than the belt system. Furthermore, the use of a torsion spring clutch device reduces the lifting force, making it easier for users to operate and improving the applicability of the device.
[0025] 2. In this utility model, the flap-turning and lifting functions can be effectively separated, and the flap-turning angle and lifting height can be precisely controlled according to the needs; the torsion spring releases the tightly held flap-turning wheel shaft, so that the side shaft, the flap-turning central shaft, and the flap blades stop turning, allowing only the flap-turning wheel shaft to rotate alone, avoiding functional interference, ensuring stable system operation, reducing component wear and failure, and extending service life. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a highly closureable louver proposed in this utility model;
[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0028] Figure 3 for Figure 1 Enlarged view of point B in the middle;
[0029] Figure 4 for Figure 1 Enlarged view of point C in the middle;
[0030] Figure 5 This is a schematic diagram of the structure of the louver blades of a high-closure louver proposed in this utility model;
[0031] Figure 6 This is a schematic diagram of the structure of a baffle for a highly closureable louver proposed in this utility model;
[0032] Figure 7 This is a schematic diagram of the flap wheel shaft of a high-closure louver proposed in this utility model.
[0033] Legend:
[0034] 1. Base frame; 2. Folded edge beam; 3. Lifting rope; 4. Top cover; 5. Top frame; 6. Lifting slider; 7. Flip-turning rope; 8. Folded edge groove; 9. Side beam; 10. Side shaft; 11. Torsion spring; 12. Flip-turning wheel shaft; 13. Flip-turning central shaft; 14. D-shaped iron wire; 15. Tilting bearing; 16. Flip-turning rope turning component; 17. Compression spring; 18. Louver; 19. Fixing block; 20. Rotating shaft; 21. Baffle; 22. Mounting bracket. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 This utility model provides an embodiment of a high-closure louver, comprising a bottom frame 1, with two folded edge beams 2 fixedly connected to the top of the bottom frame 1. One of the folded edge beams 2 has a folded edge groove 8 in the middle, and a flap-turning assembly is installed inside the folded edge groove 8. An upper frame 5 is fixedly connected to the top of the folded edge beam 2, and a lifting assembly is installed inside the upper frame 5. The flap-turning assembly includes a flap-turning rope flipping component 16, which is fixedly connected inside the folded edge groove 8. A flipping bearing 15 is rotatably connected to the middle of the flap-turning rope flipping component 16, and a flap-turning rope 7 is sleeved on the outside of the flipping bearing 15. A compression spring 17 is sleeved on the outside of the flap-turning rope flipping component 16. The louver assembly also includes a mounting bracket 22, which is fixedly connected to the inside of the upper frame 5. A side shaft 10 is rotatably connected to the middle of the mounting bracket 22. A torsion spring 11 is sleeved on the outer periphery of the side shaft 10. A louver wheel shaft 12 is fixedly connected to the outside of the side shaft 10. A louver pull rope 7 is wound around the outside of the louver wheel shaft 12. A baffle 21 is fixedly connected to the middle of the mounting bracket 22. A top cover 4 is fixedly connected to the inner side of the folded edge beam 2. A louver 18 is provided on the inner side of the folded edge beam 2. A lifting slider 6 is slidably connected inside the folded edge groove 8. A lifting pull rope 3 is provided at the end of the lifting slider 6. The lifting pull rope 3 is wound around the outside of the louver 18. The louver 18 has an irregular shape. Two side bends are designed at both ends of the louver 18. Compared with the traditional arc design, it can better fit the frame of the blind and reduce the generation of gaps. The louver pull rope is inserted into the side pull rope hole to control the lifting of the louver 18. The newly designed side-axis system abandons the one-sided flipping mechanism. The ladder belt drives the venetian 18 to flip and close only to one side. Because the pull rope is off-center, it does not obstruct the large-angle flipping of the venetian 18. At the same time, the bending of the upper and lower sides of the venetian 18 can prevent small gaps after the venetian blind is closed, improving the closure degree of the venetian blind. The two folded edge beams 2 are fixedly connected to the outside of the edge beams 9. The upper frame 5 is fixedly connected to the inside of the fixing block 19, and the fixing block 19 is rotatably connected to the rotating shaft 20. The lifting pull rope 3 is sleeved on the outside of the rotating shaft 20. The upper frame 5, the upper cover 4, the folded edge beams 2 and the edge beams 9 form the venetian blind frame, providing a mounting carrier for the venetian 18, lifting components and flipping components.
[0037] Reference Figure 1 and Figure 3The lifting assembly includes two flap pivot shafts 13, which are rotatably connected to the inside of the upper frame 5. D-shaped iron wires 14 are installed on the outside of the flap pivot shafts 13, with one end of each wire fixedly connected to the outside of the side shaft 10. When the louvered blinds 18 rotate to a certain angle, the protrusions of the torsion spring 11 touch the baffle 21. The opening angle of the protrusions at both ends of the torsion spring 11 is approximately 270°, and the angle at both ends of the side shaft 10 is approximately 170°. With the D-shaped iron wire insertion hole angle deflected to one side, the louvered blinds 18 can rotate 80°-90° from horizontal to one side. The torsion spring releases the tightly held flap pivot shaft 12. At this time, the up-and-down movement of the lifting slider 6 is only driven by the lifting rope 3, causing the louvered blinds to rise and fall, without triggering the rotation of the louvered blinds 18. This achieves effective switching between the rotating and lifting functions of the louvered blinds, ensuring that different functions operate independently at appropriate times.
[0038] Working principle: When the outer handle moves the lifting slider 6 up and down via magnetic force, the lifting rope 3 will move up and down accordingly; the flap-turning rope 7 drives the flap-turning wheel shaft 12 to rotate. The torsion spring 11 sleeved around the flap-turning wheel shaft 12 holds the flap-turning wheel shaft 12 tightly. When the flap-turning wheel shaft 12 rotates, the torsion spring 11 drives the side shaft 10 to rotate. The side shaft 10 drives the flap-turning central shaft 13 to rotate via the D-shaped iron wire 14. The flap-turning central shaft 13 then drives the ladder belt, which in turn drives the venetian blinds 18 to flip, realizing the flipping and closing action of the venetian blinds. When the venetian blinds 18 flip to a certain angle, the protrusion of the flipped torsion spring 11 will touch the baffle 21 on the side bracket. At this time, the torsion spring 11 releases the flap-turning wheel shaft 12. In this way, only the flap wheel shaft 12 can rotate independently, while the side shaft 10, the flap central shaft 13, and the venetian blades 18 will no longer rotate. When the lifting slider 6 moves up and down, the venetian blinds are driven to complete the lifting action through the lifting rope 3. Since the torsion spring 11 has released the linkage between the flap wheel shaft 12 and the side shaft 10 at this time, there is no more rotation action during the lifting process, and only the up and down lifting of the venetian blinds is realized.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-closure venetian blind, comprising a bottom frame (1), characterized in that: The top of the bottom frame (1) is fixedly connected to two folded edge beams (2), one of which has a folded edge groove (8) in the middle, and a leaf-turning assembly is installed inside the folded edge groove (8). The top of the folded edge beam (2) is fixedly connected to an upper frame (5), and a lifting assembly is installed inside the upper frame (5). The leaf-turning assembly includes a leaf-turning pull rope flipping component (16), which is fixedly connected inside the folded edge groove (8). A flipping bearing (15) is rotatably connected to the middle of the leaf-turning pull rope flipping component (16). A leaf-turning pull rope (7) is sleeved on the outside of the flipping bearing (15), and a compression spring (17) is sleeved on the outside of the leaf-turning pull rope flipping component (16).
2. The highly closureable venetian blind according to claim 1, characterized in that: The blade-turning assembly also includes a mounting bracket (22), which is fixedly connected inside the upper frame (5). A side shaft (10) is rotatably connected to the middle of the mounting bracket (22). A torsion spring (11) is sleeved on the outer periphery of the side shaft (10). A blade-turning wheel shaft (12) is fixedly connected to the outside of the side shaft (10). The blade-turning pull rope (7) is wound around the outside of the blade-turning wheel shaft (12). A baffle (21) is fixedly connected to the middle of the mounting bracket (22).
3. A highly closureable louver according to claim 2, characterized in that: The lifting assembly includes two leaf-turning shafts (13), which are rotatably connected inside the upper frame (5). A D-shaped iron wire (14) is provided on the outside of the leaf-turning shafts (13), and one end of the D-shaped iron wire (14) is fixedly connected to the outside of the side shaft (10).
4. A high-closure louver according to claim 1, characterized in that: The inner side of the folded edge beam (2) is fixedly connected to the top cover (4), and the inner side of the folded edge beam (2) is provided with louvers (18).
5. A highly closureable louver according to claim 4, characterized in that: The inside of the folded edge groove (8) is slidably connected to a lifting slider (6), and the end of the lifting slider (6) is provided with a lifting rope (3), which is wrapped around the outside of the louver (18).
6. A high-closure louver according to claim 1, characterized in that: Both of the folded edge beams (2) are fixedly connected to the outside of edge beams (9).
7. A high-closure louver according to claim 5, characterized in that: The upper frame (5) is fixedly connected to a fixing block (19), and the fixing block (19) is rotatably connected to a rotating shaft (20).
8. A high-closure louver according to claim 7, characterized in that: The lifting rope (3) is sleeved on the outside of the rotating shaft (20).