An automatically tensionable blind bottom wheel mechanism

Abstract

The utility model discloses a louver bottom wheel mechanism of automatic tensioning, including setting on the louver tensioning adjusting mechanism, tensioning adjusting mechanism includes first installation department, guide portion, telescopic spring and sliding portion, first positioning part sets up the side of louver, and guide portion sets up the side of first positioning part, and guide portion is cylindrical structure, telescopic spring sets up the outside of guide portion, and one end of telescopic spring is fixed with first installation department, and the other end of telescopic spring is in abutting state with sliding portion, sliding portion sliding sets up the outside of guide portion, and sliding portion is used for winding wire body, and the device has solved the problem that the rope is caused the unstable slide of slide rail and drive failure because of ductility, has reached the effect that the rope is long -term tight, slide rail stable sliding and drive mechanism reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of louver technology, and more specifically, to a louver bottom wheel mechanism that can automatically tension. Background Technology

[0002] In the field of venetian blind design and application, the existing venetian blind drive structure has significant technical defects, which seriously affect the performance and stability of venetian blinds.

[0003] Currently, in traditional Venetian blinds on the market, the rope pulley drive mechanism and the slide rail are set on the blind frame. The slide rail relies on the rope pulley drive mechanism to achieve sliding operation via a rope, thereby driving the blind slats to open and close. However, due to the unavoidable extensibility of the rope itself, it will gradually lengthen during long-term use of the blinds. This change directly makes it difficult for the rope to stably drive the slide rail, causing problems such as jamming and uneven sliding. Consequently, the rope pulley drive mechanism cannot stably drive the fixing iron bars, ultimately affecting the normal opening and closing of the blind slats, reducing the user experience and functional reliability of the blinds.

[0004] Furthermore, the installation process of existing rope pulley mechanisms is highly dependent on manual operation. During installation, workers find it difficult to precisely control the rope tension and the installation position of each component, which further increases the risk that the rope will fail to properly drive the slide rail and rope pulley drive mechanism. Improper installation may cause the rope to be in a slack state initially, or to stretch rapidly due to use within a short period, thus accelerating the occurrence of the aforementioned problems, significantly shortening the lifespan of the louvers, and increasing maintenance costs and replacement frequency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic tensioning louver bottom wheel mechanism that keeps the rope taut.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention is further configured to include a tension adjustment mechanism disposed on the louver; the tension adjustment mechanism includes a first mounting part, a guide part, a telescopic spring, and a sliding part; the first mounting part is disposed on the side of the louver; the guide part is disposed on the side of the first mounting part, and the guide part has a cylindrical structure; the telescopic spring is disposed on the outside of the guide part, one end of the telescopic spring is fixed to the first mounting part, and the other end of the telescopic spring is in contact with the sliding part; the sliding part is slidably disposed on the outside of the guide part, and the sliding part is used for winding the thread.

[0007] By adopting the above technical solution, the problems of unstable sliding of the slide rail and drive failure caused by the extensibility of the rope are solved, achieving the effects of long-term rope tension, stable sliding of the slide rail and reliable operation of the drive mechanism.

[0008] The present invention is further configured such that the sliding part can slide along the guide part, and when the sliding part slides upward toward the guide part, the telescopic spring is in a compressed state.

[0009] The present invention is further configured such that: the tension adjustment mechanism also includes a sliding wheel; the sliding wheel is rotatably disposed on the side of the sliding part.

[0010] The present invention is further configured such that the top of the sliding part is in the shape of a cuboid.

[0011] The present invention is further configured such that a circular groove is provided in the middle of the sliding wheel for winding and knotting the thread.

[0012] The present invention is further configured such that the sliding part is preferably made of iron.

[0013] The present invention is further configured such that the guide part is made of iron material.

[0014] In summary, this application includes at least one of the following beneficial technical effects: By setting up a tension adjustment mechanism, the problem of unstable sliding of the slide rail and drive failure caused by the elasticity of the rope was solved, achieving the effect of long-term rope tension, stable sliding of the slide rail and reliable operation of the drive mechanism. Attached Figure Description

[0015] Figure 1 This is a first-view perspective three-dimensional structural diagram of an automatically tensioning louver bottom wheel mechanism according to the present invention. Figure 2 This is a top view of the automatic tensioning louver bottom wheel mechanism of this utility model. Figure 3 This is a side view of the bottom wheel mechanism of a louver that can be automatically tensioned according to the present invention. Figure 4 This is a second-view perspective three-dimensional structural diagram of an automatically tensioning louver bottom wheel mechanism according to this utility model; Figure 5 This is a partial cross-sectional three-dimensional structural view of an automatically tensioning louver bottom wheel mechanism according to the present invention. Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle; Explanation of reference numerals in the attached drawings: 1. Tension adjustment mechanism; 11. First mounting part; 12. Guide part; 13. Telescopic spring; 14. Sliding part; 15. Sliding wheel. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0018] Please see Figure 1-6 The present invention provides the following technical solution: Embodiment 1 includes a tension adjustment mechanism 1 disposed on a venetian blind; the tension adjustment mechanism 1 includes a first mounting part 11, a guide part 12, a telescopic spring 13, and a sliding part 14; the first mounting part 11 is disposed on the side of the venetian blind; the guide part 12 is disposed on the side of the first mounting part 11, and the guide part 12 has a cylindrical structure; the telescopic spring 13 is disposed on the outside of the guide part 12, one end of the telescopic spring 13 is fixed to the first mounting part 11, and the other end of the telescopic spring 13 is in abutting state with the sliding part 14; the sliding part 14 is slidably disposed on the outside of the guide part 12, and the sliding part 14 is used for winding the thread.

[0019] It is important to note that in existing technology, the rope pulley drive mechanism and the slide rail are mounted on the frame of the veil, and the slide rail is slidable, with a rope connecting the rope pulley drive mechanism and the slide rail. In existing veil technology, because the rope pulley drive mechanism and the slide rail are connected by a rope, and ropes are elastic, they tend to lengthen over time. Once lengthened, the rope becomes difficult to stably drive the slide rail, thus hindering the stable driving of the rope pulley drive mechanism on the fixing iron bars. Furthermore, since the rope pulley mechanism is installed manually, the rope may not be able to properly drive the slide rail and the rope pulley drive mechanism. To solve this problem, the first mounting part 11 can be installed onto the veil frame by welding or fasteners. Then, the sliding part 14 is fitted onto the outside of the guide part 12, and then the rope is connected to the sliding part 14, the slide rail, and the rope pulley drive mechanism. After installation, the sliding part 14 should be positioned in the middle of the guide part 12, meaning the telescopic spring 13 is in a compressed state. This ensures that even if the rope stretches after prolonged use, the telescopic spring 13 can still push the sliding part 14 to slide away from the guide part 12, keeping the rope taut and ensuring a stable connection between the rope and the slide rail and pulley drive mechanism, preventing obstruction of the slide rail. This solves the problem of unstable slide rail movement and drive failure caused by the rope's extensibility, achieving the effects of long-term rope tautness, stable slide rail movement, and reliable operation of the drive mechanism.

[0020] See Figure 4and Figure 5 The sliding part 14 can slide along the guide part 12. When the sliding part 14 slides upwards towards the guide part 12, the telescopic spring 13 is in a compressed state.

[0021] Specifically, when the slide rail drives the rope to move, the rope can move synchronously with the connected sliding part 14, thereby causing the sliding part 14 to move along the guide part 12.

[0022] See Figure 5 The tension adjustment mechanism 1 also includes a sliding wheel 15; the sliding wheel 15 is rotatably disposed on the side of the sliding part 14.

[0023] Specifically, the rope can also be connected to the pulley 15. It should be noted that when connecting the rope to the pulley 15, the rope needs to be wrapped and knotted to ensure a stable connection between the rope and the pulley 15.

[0024] See Figures 3-5 The top of the sliding part 14 is rectangular.

[0025] Specifically, the rope can also be connected to the sliding part 14. It should be noted that when the rope is connected to the sliding part 14, the rope and the sliding part 14 need to be rotated, wrapped, and knotted together.

[0026] See Figure 3 The middle of the sliding wheel 15 is provided with a circular groove for winding and knotting the thread.

[0027] Specifically, it should be noted that when the rope is connected to the pulley 15, the rope needs to be connected to the circular groove opened in the pulley 15. This can prevent the rope from coming off the outside of the pulley 15 and getting knotted when the pulley 15 slides, making it difficult to drive the pulley 15 to rotate.

[0028] See Figure 5 The sliding part 14 is preferably made of iron.

[0029] Specifically, the sliding part 14 is preferably made of ferrous stainless steel, which can improve the service life of the sliding part 14.

[0030] See Figure 6 The guide section 12 is made of iron.

[0031] Specifically, the guide section 12 is preferably made of ferrous stainless steel.

[0032] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A louver bottom wheel mechanism with automatic tensioning capability, characterized in that: Includes a tension adjustment mechanism (1) installed on the louvers; The tension adjustment mechanism (1) includes a first mounting part (11), a guide part (12), a telescopic spring (13) and a sliding part (14). The first mounting part (11) is located on the side of the louver; The guide part (12) is located on the side of the first mounting part (11), and the guide part (12) is a cylindrical structure; The telescopic spring (13) is located on the outside of the guide part (12). One end of the telescopic spring (13) is fixed to the first mounting part (11), and the other end of the telescopic spring (13) is in contact with the sliding part (14). The sliding part (14) is slidably disposed on the outside of the guide part (12), and the sliding part (14) is used for winding the thread.

2. The automatically tensioning louver bottom wheel mechanism according to claim 1, characterized in that: The sliding part (14) can slide along the guide part (12). When the sliding part (14) slides upwards towards the guide part (12), the telescopic spring (13) is in a compressed state.

3. The automatically tensioning louver bottom wheel mechanism according to claim 2, characterized in that: The tension adjustment mechanism (1) also includes a pulley (15); the pulley (15) is rotatably disposed on the side of the sliding part (14).

4. The automatically tensioning louver bottom wheel mechanism according to claim 3, characterized in that: The top of the sliding part (14) is rectangular.

5. The automatically tensioning louver bottom wheel mechanism according to claim 4, characterized in that: The middle part of the pulley (15) has a circular slot for winding and knotting the thread.

6. The automatically tensioning louver bottom wheel mechanism according to claim 1, characterized in that: The sliding part (14) is preferably made of iron.

7. The automatically tensioning louver bottom wheel mechanism according to claim 1, characterized in that: The guide section (12) is made of iron.

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