A direct-hung infinite-turnover assembly for a venetian blind
By optimizing the installation structure and flipping mechanism of the blinds, the problems of low installation efficiency and poor stability of traditional blinds have been solved, enabling rapid installation and stable flipping, thus improving the efficiency and lifespan of the blinds.
Patent Information
- Application Number
- CN202521474226.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-14
- Estimated Expiration
- 2035-07-15
AI Technical Summary
Traditional louver direct-hanging installation structure has low installation efficiency and poor stability of the fit between the rotating shaft and the support, affecting the flipping function and service life.
A louver assembly including an installation structure, a flipping mechanism, and a limiting roller was designed. By optimizing the connection between the rotating shaft and the support, the installation resistance is reduced and the stability is improved. The inclined design reduces weight, and the smooth flipping is achieved by using thread winding and knotting.
It enables rapid installation and continuous, stable rotation of the axis, improving installation efficiency and service life, reducing frictional resistance, and ensuring the normal light adjustment and ventilation functions of the louvers.
Smart Images

Figure CN224496283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of venetian blind technology, and more specifically, to a venetian blind vertical hanging infinitely rotating component. Background Technology
[0002] In the design and application of venetian blinds, straight-hanging venetian blinds are widely used in various architectural settings due to their advantages such as convenient installation and small space occupation. Among them, the folding function of the venetian blinds is the key to realizing their core functions such as adjusting light and ventilation, while the installation structure of the rotating shaft and the support is the core component that ensures the normal folding of the venetian blinds.
[0003] Currently, the installation structure of the rotating shaft and support in the direct-hanging louver technology on the market has many shortcomings. On the one hand, the traditional installation structure involves a cumbersome process when assembling the rotating shaft, requiring a lot of time and manpower, resulting in extremely low installation efficiency and failing to meet the needs of large-scale production and rapid installation. For example, in the installation of louvers in some large commercial buildings, the low installation efficiency often prolongs the entire project period and increases construction costs.
[0004] On the other hand, the existing installation structure has obvious defects in the stability of the fit between the rotating shaft and the support. During long-term use of the blinds, the rotating shaft is prone to shaking, jamming, or even failing to rotate normally. This not only affects the louver's flipping function and reduces its light and ventilation adjustment effect, but also shortens the louver's lifespan and increases the cost of later maintenance and replacement. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a louver hanging infinite flip component that can be quickly installed and stably supported for rotation.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] The present invention is further configured as follows: it includes an installation structure for fixing iron bars on a louver and a flipping mechanism for connecting with the fixing iron bars; the installation structure includes a first positioning part, a support part and a supporting part; the first positioning part is disposed on the louver, and the bottom surface of the first positioning part is a cubic structure, and the top of the first positioning part is a cylindrical structure; the support part is disposed on the top of the first positioning part; the supporting part has a pair and is disposed on the top of the support part respectively, and the top of the pair of supporting parts is provided with an installation abutment interface; the flipping mechanism is disposed on the top of the installation structure, and the flipping mechanism includes a rotating shaft disposed above the supporting part and connected to the fixing iron bars.
[0008] By adopting the above technical solution, the problems of low installation efficiency, poor stability of the fit between the rotating shaft and the support, and excessive weight in traditional assembly methods are solved. This achieves the ability to quickly install the rotating shaft onto the top of the support, and the rotating shaft can rotate continuously.
[0009] The present invention is further configured such that: both sides of the support portion are provided with passage openings, the top two sides of the passage openings are chamfered, and the bottom of the passage openings are rectangular.
[0010] The present invention is further configured such that the two sides of the supporting part are relatively inclined.
[0011] By adopting the above technical solution, the two sides of the support are inclined. This further reduces the weight of the support without affecting its stable support effect on the rotating shaft.
[0012] The present invention is further configured such that: the flipping mechanism also includes a limiting roller; the limiting roller has a pair and is respectively arranged on the outside of the rotating shaft, and both limiting rollers are conical in shape, and the pair of limiting rollers are arranged opposite to each other.
[0013] The present invention is further configured such that: the end face of the rotating shaft has a through-hole that passes through the rotating shaft and is used for the fixing iron bar to pass through, and the shape of the through-hole matches the shape of the fixing iron bar.
[0014] The present invention is further configured such that: a straight opening is provided on the outer side of a pair of limiting rollers, and the straight opening is a cylindrical structure.
[0015] By adopting the above technical solution, the contact resistance during the installation of the fixing iron strip can be significantly reduced. This not only improves the installation efficiency of the fixing iron strip but also reduces the direct friction between the fixing iron strip and the through-hole.
[0016] The present invention is further configured such that the distance between a pair of limiting rollers forms a winding space for winding and rotating the yarn.
[0017] By employing the above technical solution, the thread is wound around the outside of the rotating shaft and knotted, and then the thread is connected to the venetian blinds. Thus, when the rotating shaft rotates, the venetian blinds can be opened or closed via the thread, and the rotating shaft can continue to rotate even after the venetian blinds have been closed.
[0018] In summary, this application includes at least one of the following beneficial technical effects:
[0019] By designing an installation structure, the problems of low installation efficiency, poor stability of the fit between the rotating shaft and the support, and excessive weight inherent in traditional assembly methods are solved. This allows for the rapid installation of the rotating shaft onto the top of the support, while ensuring continuous rotation of the shaft.
[0020] By setting up a flipping mechanism, the thread is wound around the outside of the rotating shaft and knotted, and then the thread is connected to the venetian blinds. Thus, when the rotating shaft rotates, the venetian blinds can be opened or closed by the thread, and the rotating shaft can continue to rotate even after the venetian blinds are closed because the friction between the thread and the rotating shaft is small. Attached Figure Description
[0021] Figure 1 This is a first-view perspective three-dimensional structural diagram of a louvered vertical hanging infinitely rotating component according to the present invention;
[0022] Figure 2 This is a side view of a venetian blind hanging infinitely rotating component according to the present invention.
[0023] Figure 3 This is a top view of a louvered, vertically mounted, infinitely rotating component according to the present invention.
[0024] Figure 4 This is a three-dimensional structural diagram of the support and bearing parts of a louvered direct-hanging infinitely rotating component according to the present invention.
[0025] Figure 5 This is a three-dimensional structural diagram of the rotating shaft and limiting roller of a louvered direct-hanging infinite flipping component according to the present invention.
[0026] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the rotating shaft and limiting roller of a louvered direct-hanging infinite flipping component according to the present invention.
[0027] Figure 7 This is a partial three-dimensional structural diagram of the wire winding and knotting on the outside of the rotating shaft of a venetian blind straight-hanging infinite flipping component of this utility model.
[0028] Explanation of reference numerals in the attached drawings: 1. Fixing iron bar; 2. Mounting structure; 21. First positioning part; 22. Support part; 23. Supporting part; 231. Mounting abutment interface; 232. Through port; 3. Flipping mechanism; 31. Rotating shaft; 311. Through port; 32. Limiting roller; 321. Straight port. Detailed Implementation
[0029] 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.
[0030] 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.
[0031] Please see Figure 1-7 The present invention provides the following technical solution:
[0032] Embodiment 1 includes an installation structure 2 for fixing the iron bar 1 on a louver and a flipping mechanism 3 for connecting to the iron bar 1. The installation structure 2 includes a first positioning part 21, a support part 22, and a supporting part 23. The first positioning part 21 is disposed on the louver, and the bottom surface of the first positioning part 21 is a cubic structure, and the top surface of the first positioning part 21 is a cylindrical structure. The support part 22 is disposed on the top of the first positioning part 21. The supporting part 23 has a pair and is disposed on the top of the support part 22, and the top of the pair of supporting parts 23 is provided with an installation abutment interface 231. The flipping mechanism 3 is disposed on the top of the installation structure 2, and the flipping mechanism 3 includes a rotating shaft 31 disposed above the supporting part 23 and connected to the iron bar 1.
[0033] Specifically, the fixing iron bar 1 is the rotation drive shaft of the venetian blind in the prior art, which will not be described in detail here. It should be noted that the bottom of the mounting abutment interface 231 has a semi-circular structure, but the top of the mounting abutment interface 231 has a V-shaped opening structure, and the area between the V-shaped opening and the bottom of the mounting abutment interface 231 has a protruding corner structure. This allows the rotating shaft 31 to be installed through the V-shaped structure and in contact with the mounting abutment groove. After installation, the rotating shaft 31 is abutted by the protruding corner structure between the V-shaped opening and the bottom of the mounting abutment interface 231. This prevents the rotating shaft 31 from detaching from the support part 22 during use after installation. It is worth noting that the first positioning part 21 can be connected to the venetian blind by fasteners, and there is a pair of first positioning parts 21, with the distance between the pair of first positioning parts 21 preferably being 400mm. This distance is the distance between the pair of first positioning parts 21 installed on the venetian blind.
[0034] Example 2: To reduce the weight of the support part 23 and improve its support effect.
[0035] See Figure 4 Both sides of the support part 23 are provided with passage openings 232, and the top two sides of the passage openings 232 are chamfered structures, and the bottom of the passage openings 232 is rectangular.
[0036] Specifically, to reduce the weight of the support 23 and improve its supporting effect, a perforation device from the prior art is used to create through openings 232 on both sides of the support base. On the one hand, this effectively reduces the load of the support 23 on the louver; on the other hand, when the rotating shaft 31 rotates on the support 23, the through openings 232 optimize the stress distribution of the support base, thereby improving the overall supporting effect of the support 22.
[0037] See Figure 4 The two sides of the support part 23 are set at relative inclination.
[0038] Specifically, in order to further reduce the weight of the support part 22 and the supporting part 23, the two sides of the supporting part 23 are inclined. This can further reduce the weight of the supporting part 23 without affecting the stable support effect of the supporting part 23 on the rotating shaft 31.
[0039] See Figure 5 The flipping mechanism 3 also includes a limiting roller 32; the limiting roller 32 has a pair and is respectively arranged on the outside of the rotating shaft 31, and both limiting rollers 32 are conical structures, and the pair of limiting rollers 32 are arranged opposite to each other.
[0040] Specifically, it should be noted that when the rotating shaft 31 is installed on top of the support portion 23, in this state, the sides of the pair of limiting rollers 32 are kept at a distance from the sides of the support portion 23. That is, after the rotating shaft 31 and the limiting rollers 32 are installed with the support portion 23, the sides of the pair of limiting rollers 32 do not contact the side end faces of the support portion 23. Therefore, when the rotating shaft 31 and the limiting rollers 32 rotate on top of the support portion 23, the limiting rollers 32 will not affect the rotation of the rotating shaft 31.
[0041] See Figure 5 and Figure 6 The end face of the rotating shaft 31 has a through-hole 311 that passes through the rotating shaft 31 and is used for the fixing iron bar 1 to pass through. The shape of the through-hole 311 matches the shape of the fixing iron bar 1.
[0042] Specifically, the rotating shaft 31 has a through-hole 311 in its middle for the fixing iron bar 1 to pass through and abut. The shape of the through-hole 311 fits the outside of the fixing iron bar 1. When installing the fixing iron bar 1, the through-hole 311 in the middle of the rotating shaft 31 should be passed through and installed with the fixing iron bar 1 first. Then, the installed fixing iron bar 1 and rotating shaft 31 are installed on the top of the support part 23.
[0043] See Figure 6 and Figure 7 A pair of limiting rollers 32 have a straight opening 321 on their outer side, and the straight opening 321 has a cylindrical structure.
[0044] Specifically, to ensure that the retainer iron bar 1 can smoothly pass through the pre-set through-hole 311 inside the rotating shaft 31 for rapid installation, the resistance problem during installation needs to be solved. When the retainer iron bar 1 passes through the through-hole 311 inside the rotating shaft 31, the iron bar is in close contact with the wall of the through-hole 311, resulting in significant resistance during installation. A straight opening 321 is opened at the top of a pair of limiting rollers 32. This straight opening 321 penetrates the body of the limiting rollers 32 and communicates with the through-hole 311 of the rotating shaft 31. This allows air to flow through the straight opening 321 during installation, effectively balancing the air pressure inside and outside the through-hole 311, thereby significantly reducing the contact resistance during the installation of the retainer iron bar 1. This not only improves the installation efficiency of the retainer iron bar 1 but also reduces the direct friction between the retainer iron bar 1 and the through-hole 311.
[0045] See Figure 7 The distance between a pair of limiting rollers 32 forms a winding space for winding and rotating the yarn.
[0046] Specifically, after the rotating shaft 31 is installed on the top of the support 23, in order to open and close the blinds, the thread should first be wound around the outside of the rotating shaft 31 and knotted, and then the thread should be connected to the blinds. Thus, when the rotating shaft 31 rotates, the blinds can be opened or closed via the thread, and the rotating shaft 31 can continue to rotate even after the blinds are closed because the friction between the thread and the rotating shaft 31 is low. In this state, the thread is wound and knotted with the rotating shaft 31. It should be noted that this rotating shaft 31 is suitable for opening and closing small blinds. When used with large blinds, the user should wind and knot the thread around the rotating shaft 31 multiple times to increase the friction between the thread and the rotating shaft 31, thereby improving the smoothness of opening and closing large blinds. It is worth noting that when the thread is wound around the outside of the rotating shaft 31, riveting equipment or fasteners can also be used to fix the thread to the outside of the rotating shaft 31.
[0047] 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 venetian blind hanging type infinitely rotating component, characterized in that: It includes a mounting structure (2) for fixing iron bars (1) set on the louver and a flipping mechanism (3) for connecting to the fixing iron bars (1). The mounting structure (2) includes a first positioning part (21), a support part (22) and a supporting part (23). The first positioning part (21) is set on the louver, and the bottom surface of the first positioning part (21) is a cube structure, and the top of the first positioning part (21) is a cylindrical structure; The support part (22) is disposed on the top of the first positioning part (21); The support part (23) has a pair and is respectively provided on the top of the support part (22), and the top of the pair of support parts (23) is provided with an installation abutment interface (231). The flipping mechanism (3) is located on top of the mounting structure (2). The flipping mechanism (3) includes a rotating shaft (31) located above the support (23) and connected to the fixing iron bar (1).
2. The Venetian blind hanging type infinitely rotating component according to claim 1, characterized in that: Both sides of the support part (23) are provided with passage openings (232), and the top two sides of the passage openings (232) are chamfered structures, and the bottom of the passage openings (232) is rectangular.
3. A venetian blind hanging type infinitely rotating component according to claim 2, characterized in that: The two sides of the support part (23) are set at relative inclination.
4. A venetian blind hanging type infinitely rotating component according to claim 3, characterized in that: The flipping mechanism (3) also includes a limiting roller (32); the limiting roller (32) has a pair and is respectively arranged on the outside of the rotating shaft (31), and both limiting rollers (32) are conical structures, and the pair of limiting rollers (32) are arranged opposite to each other.
5. A venetian blind hanging type infinitely rotating component according to claim 4, characterized in that: The end face of the rotating shaft (31) has a through-hole (311) that passes through the rotating shaft (31) and is used for the fixing iron bar (1) to pass through. The shape of the through-hole (311) matches the shape of the fixing iron bar (1).
6. A venetian blind hanging type infinitely rotating component according to claim 5, characterized in that: A pair of limiting rollers (32) have a straight opening (321) on their outer side, and the straight opening (321) is a cylindrical structure.
7. A venetian blind hanging type infinitely rotating component according to claim 6, characterized in that: The distance between a pair of limiting rollers (32) forms a winding space for winding and rotating the yarn.