Curtain type blind window
By designing adjustment and limiting components, the problems of inflexible blade tilt angle and limiting of curtain-type louvered blinds have been solved, enabling flexible adjustment and stable limiting of the blades, thus improving the flexibility and stability of shading and ventilation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI LINGRUI SMART HOME CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing curtain-style blinds cannot flexibly adjust the tilt angle and limit of the slats, resulting in inflexible light control and affecting ventilation.
The device employs an adjustment assembly and a limiting assembly, including a first positioning rod, a gear, a rack, an adjustment block, and a first threaded rod. The tilt angle of the blade is adjusted by a motor drive, and the blade is stably limited by a limiting plate and a support plate.
It enables flexible adjustment and stable limiting of the blade tilt angle, enhances the flexibility and stability of shading and ventilation, prevents the blades from flipping uncontrollably, and improves the user experience.
Smart Images

Figure CN224200541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of venetian blind equipment technology, and in particular to a curtain-type venetian blind. Background Technology
[0002] Venetian blinds are windows made of several strips of material arranged in parallel. Light is controlled by rotating the angle of the blinds. They serve the purposes of ventilation, light control, and privacy protection, while also providing shade, cooling, and decorating the room. As an aesthetically pleasing and practical window covering, Venetian blinds are widely used in various settings, including homes, offices, schools, and hospitals.
[0003] A type of blind with patent application number 202320855930.X uses the mutual attraction between a metal block and an electromagnet to drive the rotation of the light-blocking slats, thereby achieving the purpose of shading the room and reducing the adverse effects of long-term use of hanging ropes on the blinds. However, in use, the electromagnet and metal block can only control the opening and closing of the slats, and it is not convenient to adjust the tilt angle of the slats. It is not easy to control the light entering and blocking by adjusting the angle of the slats, thus limiting the flexibility of use.
[0004] Some existing louvers are not convenient to limit and block the slats during use, which may cause the slats to rotate uncontrollably, affecting the ventilation effect. At the same time, when the slats are limited by the fixed length of the baffles, the degree of opening of the slats is restricted, limiting the range of adjustment of the slats, making it inconvenient for users to flexibly adjust the shading and ventilation effect according to actual needs.
[0005] Therefore, it is necessary to provide a new type of curtain-style blind to solve the above-mentioned technical problems. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a curtain-type venetian blind with adjustable blade tilt angle and flexible limiting to prevent uncontrolled flipping.
[0007] The curtain-type blind provided by this utility model includes a mounting frame, an adjustment component, and a limiting component. A connecting frame is fixedly connected to the rear surface of the mounting frame, and blades are provided on the inner side of the mounting frame. The adjustment component is located on one side of the blades and includes a first positioning rod, a gear, a rack, an adjusting block, and a first threaded rod. The first positioning rod is fixedly connected to one side of the blades, and a gear is provided at one end of the first positioning rod. A rack is meshed with the outer side of the gear, and an adjustment block is fixedly connected to the rear surface of the rack. The first threaded rod is threadedly connected to the inner side of the adjusting block. The limiting component is located on the front surface of the mounting frame and includes a limiting plate and a support plate. A limiting plate is provided at the bottom of the blades, and a support plate is fixedly connected to the front surface of the limiting plate.
[0008] As a type of blind provided by this utility model, preferably, a second positioning rod is fixedly connected to one side of the blade, a support block is provided at one end of the first threaded rod, and the rear surface of the support block is fixedly connected to the rear surface of the inner cavity of the connecting frame.
[0009] As a type of blind provided by this utility model, preferably, one end of the first threaded rod is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a motor, and the bottom of the motor is fixedly connected to the bottom of the inner cavity of the connecting frame.
[0010] As a type of blind provided by this utility model, preferably, the mounting frame has placement holes inside, and the top and bottom of the inner cavity of the mounting frame have through grooves, and the interior of the mounting frame is connected to the interior of the connecting frame.
[0011] As a type of blind provided by this utility model, preferably, the limiting component further includes a bearing seat and a second threaded rod, the top of the support plate is fixedly connected to the bearing seat, and the inner side of the bearing seat is provided with the second threaded rod.
[0012] As a type of blind provided by this utility model, preferably, a stabilizing rod is fixedly connected to the top of the support plate, and a first positioning plate is slidably connected to the outside of the stabilizing rod.
[0013] As a type of blind provided by this utility model, preferably, one end of the second threaded rod is fixedly connected to a handwheel, and the outer side of the second threaded rod is threadedly connected to a second positioning plate.
[0014] As a type of blind provided by this utility model, preferably, the first positioning plate has a through hole inside, a fixing cylinder is slidably connected to the outside of the first positioning plate, the rear surface of the fixing cylinder is fixedly connected to the front surface of the mounting frame, and bolts are provided inside the fixing cylinder.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This curtain-style venetian blind, through the connection of a first threaded rod, adjusting block, and rack, drives the blades to rotate under the support of a second positioning rod and mounting frame. This allows for convenient adjustment of the blade tilt angle to meet different shading and ventilation needs. With the assistance of a fixed cylinder, first positioning plate, second threaded rod, and support plate, the position of the limiting plate can be easily adjusted according to the blade tilt, providing support and limiting for the blades, enhancing stability and effectively reducing uncontrolled blade rotation. This solves the problem of existing venetian blinds where limiting the blades is inconvenient, potentially leading to uncontrolled blade rotation and affecting ventilation. Additionally, fixed-length stops restrict the blade opening, limiting the adjustment range and making it difficult for users to flexibly adjust the shading and ventilation effects according to actual needs. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of the curtain-type venetian blind provided by this utility model;
[0018] Figure 2 for Figure 1 The diagram shows the structure of the adjustment component.
[0019] Figure 3 for Figure 1 The diagram shows the structure of the placement hole and through slot;
[0020] Figure 4 for Figure 1 The diagram shows the structure of the limiting component.
[0021] The following are the labeling elements in the diagram: 1. Mounting frame; 2. Connecting frame; 3. Blade; 4. Adjusting assembly; 41. First positioning rod; 42. Gear; 43. Rack; 44. Adjusting block; 45. First threaded rod; 5. Limiting assembly; 51. Limiting plate; 52. Support plate; 53. Shaft seat; 54. Second threaded rod; 6. Second positioning rod; 7. Support block; 8. Connecting rod; 9. Motor; 10. Placement hole; 11. Through slot; 12. Stabilizing rod; 13. First positioning plate; 14. Handwheel; 15. Second positioning plate; 16. Through hole; 17. Fixing cylinder; 18. Bolt. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A schematic diagram of a preferred embodiment of the curtain-type venetian blind provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the adjustment component. Figure 3 for Figure 1 The diagram shows the structure of the placement hole and through slot; Figure 4 for Figure 1 The diagram shows the structure of the limiting component. A curtain-type venetian blind includes a mounting frame 1, a connecting frame 2 fixedly connected to the rear surface of the mounting frame 1, and blades 3 provided on the inner side of the mounting frame 1;
[0024] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 3 As shown, the adjustment component 4 is disposed on one side of the blade 3. The adjustment component 4 includes a first positioning rod 41, a gear 42, a rack 43, an adjustment block 44, and a first threaded rod 45. The first positioning rod 41 is fixedly connected to one side of the blade 3. A gear 42 is disposed at one end of the first positioning rod 41. A rack 43 is meshed with the outer side of the gear 42. An adjustment block 44 is fixedly connected to the rear surface of the rack 43. The first threaded rod 45 is threadedly connected to the inner side of the adjustment block 44.
[0025] A second positioning rod 6 is fixedly connected to one side of the blade 3, and a support block 7 is provided at one end of the first threaded rod 45. The rear surface of the support block 7 is fixedly connected to the rear surface of the inner cavity of the connecting frame 2.
[0026] One end of the first threaded rod 45 is fixedly connected to a connecting rod 8, and one end of the connecting rod 8 is fixedly connected to a motor 9. The bottom of the motor 9 is fixedly connected to the bottom of the inner cavity of the connecting frame 2.
[0027] The mounting frame 1 has a placement hole 10 inside, and through grooves 11 are provided at the top and bottom of the inner cavity of the mounting frame 1. The interior of the mounting frame 1 is connected to the interior of the connecting frame 2.
[0028] It should be noted that: both sides of the mounting frame 1 are provided with placement holes 10, which provide placement space for the first positioning rod 41 and the second positioning rod 6. The first positioning rod 41 and the second positioning rod 6 are rotatably connected to the mounting frame 1. Driven by the motor 9, the connecting rod 8 drives the first threaded rod 45 to rotate under the support of the support block 7, which causes the adjusting block 44 to drive the rack 43 to move up and down. The through slots 11 opened at the top and bottom of the mounting frame 1 provide space for the movement of the rack 43. The movement of the rack 43 drives the rotation of multiple gears 42, and under the action of multiple first positioning rods 41, drives the blade 3 and the second positioning rod 6 to rotate under the support of the mounting frame 1, which makes it easy to adjust the tilt angle of the blade 3 as needed to meet different shading and ventilation requirements.
[0029] refer to Figure 1 and Figure 4As shown, the limiting component 5 is disposed on the front surface of the mounting frame 1. The limiting component 5 includes a limiting plate 51 and a support plate 52. The bottom of the blade 3 is provided with a limiting plate 51, and the front surface of the limiting plate 51 is fixedly connected to the support plate 52.
[0030] The limiting component 5 also includes a bearing seat 53 and a second threaded rod 54. The bearing seat 53 is fixedly connected to the top of the support plate 52, and the second threaded rod 54 is provided on the inner side of the bearing seat 53.
[0031] A stabilizing rod 12 is fixedly connected to the top of the support plate 52, and a first positioning plate 13 is slidably connected to the outside of the stabilizing rod 12.
[0032] A handwheel 14 is fixedly connected to one end of the second threaded rod 54, and a second positioning plate 15 is threadedly connected to the outer side of the second threaded rod 54.
[0033] The first positioning plate 13 has a through hole 16 inside, and a fixing cylinder 17 is slidably connected to the outside of the first positioning plate 13. The rear surface of the fixing cylinder 17 is fixedly connected to the front surface of the mounting frame 1, and a bolt 18 is provided inside the fixing cylinder 17.
[0034] It should be noted that the cooperation of the fixed cylinder 17, bolt 18 and through hole 16 facilitates the determination of the extension length of the first positioning plate 13 and the second positioning plate 15, and facilitates telescopic adjustment as needed. By rotating the second threaded rod 54 through the handwheel 14, the support plate 52 is moved through the threaded connection on the inner side of the second positioning plate 15 and the connection of the bearing seat 53. This causes the stabilizing rod 12 to slide under the limit of the first positioning plate 13, improving the stability of the support plate 52. By adjusting the position of the support plate 52, the two limiting plates 51 are made to contact the bottom of the blade 3, supporting and limiting the blade 3, effectively preventing the blade 3 from overturning uncontrollably, and making it more flexible to use.
[0035] The working principle of the curtain-type venetian blind provided by this utility model is as follows:
[0036] In use, driven by motor 9, connecting rod 8 drives first threaded rod 45 to rotate under the support of support block 7, thereby causing adjusting block 44 to drive rack 43 to move up and down. Through slots 11 at the top and bottom of mounting frame 1 provide space for rack 43 to move. The movement of rack 43 drives multiple gears 42 to rotate, and under the action of multiple first positioning rods 41, drives multiple blades 3 and second positioning rods 6 to rotate under the support of mounting frame 1. This allows for easy adjustment of the tilt angle of blades 3 as needed to meet different shading and ventilation requirements, facilitating control of light entry or shading, and enhancing the flexibility of use. The mounting frame 1 and two fixing cylinders 17 facilitate the installation and fixing of first positioning plate 13 and second positioning plate 15, and the bolts 18 and through holes 16... Under the action of the mechanism, the extension length of the first positioning plate 13 and the second positioning plate 15 can be easily adjusted according to the needs and the tilt of the blade 3. By rotating the handwheel 14, under the action of the threaded connection between the second threaded rod 54 and the second positioning plate 15, and under the connection of the bearing seat 53, the support plate 52 is driven to rise and fall by the second threaded rod 54. At the same time, the support plate 52 drives the stabilizing rod 12 to slide under the limit of the first positioning plate 13, which improves the stability of the movement of the support plate 52. The position of the support plate 52 is adjusted according to the tilt of the blade 3, so that after the top of the two limiting plates 51 contacts the bottom of the blade 3, the fixing effect is enhanced by the nut on the outside of the second threaded rod 54. In this way, the limiting plates 51 support and limit the blade 3, effectively preventing the blade 3 from overturning uncontrollably, which is conducive to enhancing the practical effect.
[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A type of curtain-style venetian blind, characterized in that, include: Mounting frame (1), the rear surface of the mounting frame (1) is fixedly connected to a connecting frame (2), and the inner side of the mounting frame (1) is provided with blades (3). Adjustment component (4), the adjustment component (4) is disposed on one side of blade (3), the adjustment component (4) includes a first positioning rod (41), a gear (42), a rack (43), an adjustment block (44) and a first threaded rod (45). The first positioning rod (41) is fixedly connected to one side of blade (3), a gear (42) is provided at one end of the first positioning rod (41), a rack (43) is meshed on the outer side of the gear (42), an adjustment block (44) is fixedly connected to the rear surface of the rack (43), and the first threaded rod (45) is threadedly connected to the inner side of the adjustment block (44). Limiting component (5), the limiting component (5) is disposed on the front surface of the mounting frame (1), the limiting component (5) includes a limiting plate (51) and a support plate (52), the bottom of the blade (3) is provided with a limiting plate (51), and the front surface of the limiting plate (51) is fixedly connected to the support plate (52).
2. The curtain-type venetian blind according to claim 1, characterized in that, A second positioning rod (6) is fixedly connected to one side of the blade (3), and a support block (7) is provided at one end of the first threaded rod (45). The rear surface of the support block (7) is fixedly connected to the rear surface of the inner cavity of the connecting frame (2).
3. The curtain-type venetian blind according to claim 1, characterized in that, One end of the first threaded rod (45) is fixedly connected to a connecting rod (8), and one end of the connecting rod (8) is fixedly connected to a motor (9). The bottom of the motor (9) is fixedly connected to the bottom of the inner cavity of the connecting frame (2).
4. The curtain-type venetian blind according to claim 1, characterized in that, The mounting frame (1) has a placement hole (10) inside, and the top and bottom of the inner cavity of the mounting frame (1) are provided with through grooves (11). The interior of the mounting frame (1) is connected to the interior of the connecting frame (2).
5. The curtain-type venetian blind according to claim 1, characterized in that, The limiting component (5) also includes a bearing seat (53) and a second threaded rod (54). The bearing seat (53) is fixedly connected to the top of the support plate (52), and the second threaded rod (54) is provided on the inner side of the bearing seat (53).
6. The curtain-type venetian blind according to claim 1, characterized in that, A stabilizing rod (12) is fixedly connected to the top of the support plate (52), and a first positioning plate (13) is slidably connected to the outside of the stabilizing rod (12).
7. The curtain-type venetian blind according to claim 5, characterized in that, A handwheel (14) is fixedly connected to one end of the second threaded rod (54), and a second positioning plate (15) is threadedly connected to the outer side of the second threaded rod (54).
8. The curtain-type venetian blind according to claim 6, characterized in that, The first positioning plate (13) has a through hole (16) inside. A fixing cylinder (17) is slidably connected to the outside of the first positioning plate (13). The rear surface of the fixing cylinder (17) is fixedly connected to the front surface of the mounting frame (1). Bolts (18) are provided inside the fixing cylinder (17).
Citation Information
Patent Citations
Curtain type blind window
CN219281632U