A sunshade curtain driving mechanism

Abstract

The utility model relates to a sunshade curtain's traction device, specifically disclose a sunshade curtain drive mechanism, including drive shaft and pulley, drive shaft and pulley are arranged respectively in the both ends of the area to be shaded, set up the rope winding stick outside the wall of drive shaft, the outer wall surface of rope winding stick is provided with the traction rope that spreads with spiral track, the outer wall of rope winding stick still is equipped with the rope dialing board, the traction rope between rope winding stick, rope dialing board both sides and pulley extends, and rope winding stick rotates and moves dialing board and drives the traction rope to move on the pulley. This sunshade curtain drive mechanism, through setting up the thread groove outside the wall of rope winding stick, and cooperate with the directional guide of dialing board, and the limited ring of dialing board both sides further carries out the position limitation to traction rope, ensures that traction rope always keeps the orderly state in the transmission process, effectively reduced the risk of mechanism jam, stagnation, prolonged the service life of traction rope and drive mechanism, solved the problem that traction rope is disorderly wound, and the operation smoothness was promoted.

Description

Technical Field

[0001] This utility model relates to the technical field of traction devices for sunshades, specifically a sunshade driving mechanism. Background Technology

[0002] In the field of sunshade technology, sunshade curtains are widely used in building doors and windows, balconies, and awnings because they can flexibly adjust light and improve indoor environmental comfort. Currently, most sunshade curtain drive mechanisms on the market use a "motor plus rope or roller" as the core transmission structure to realize the opening and closing of the sunshade curtain. However, in actual use, the following issues still need improvement: Disorderly winding of the traction rope can easily cause jamming and stagnation. The rope winding component of traditional drive mechanisms is mostly a smooth cylindrical structure. When the traction rope is wound, there is a lack of directional guidance, which can easily lead to overlapping, deviation, or messy winding. This results in uneven force during the opening or closing of the sunshade, causing the mechanism to jam. In severe cases, it can even break the traction rope, affecting the service life and stability of the drive mechanism.

[0003] The components have low precision in fit and poor operational stability. In some drive mechanisms, the components used to guide the traction rope (such as levers and guide wheels) and the rope winding components lack precise transmission fit and are not equipped with effective anti-rotation and limiting structures. This causes the guiding components to sway or rotate synchronously with the rope winding components during operation, making it impossible to stably limit the position of the traction rope. This further aggravates the problem of traction rope disorder and also causes tilting and displacement deviation when the sunshade is opened or closed. Summary of the Invention

[0004] The purpose of this invention is to provide a sunshade curtain driving mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sunshade curtain driving mechanism, comprising a drive shaft and a pulley, wherein the drive shaft and the pulley are respectively disposed at both ends of the area to be shaded, and the two ends of the drive shaft are provided with support seats connected to the building, and the support seats are also provided with motors for driving the drive shaft to rotate, a rope winding rod is disposed on the outer wall of the drive shaft, and a traction rope is disposed on the outer wall surface of the rope winding rod in a spiral trajectory, and a rope-pulling plate is also sleeved on the outer wall of the rope winding rod, the traction rope extends between the rope winding rod, the rope-pulling plate on both sides and the pulley, and the rotation of the rope winding rod and the movement of the rope-pulling plate drive the traction rope to move on the pulley.

[0006] Preferably, the outer wall of the rope winding rod is provided with threads, and the traction rope is wound around the outer wall of the rope winding rod along the threaded groove; a limiting guide rod that is slidably connected to the support base is fixedly connected to the rope-pulling plate, and the rope winding rod is threadedly connected to the rope-pulling plate.

[0007] Preferably, a limiting ring is provided on both sides of the rope-pulling plate, and the traction rope passes through the limiting ring.

[0008] Preferably, the rope-pulling plate is made of plastic.

[0009] Preferably, when using two traction ropes, two rope-winding rods with opposite threads are fixed to the outer wall of the drive shaft.

[0010] Preferably, a pre-positioning groove is provided on the outer wall of the drive shaft, and a screw passes through the rope winding rod and enters the pre-positioning groove to fix the rope winding rod to the outer wall of the drive shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This sunshade drive mechanism, by setting threaded grooves on the outer wall of the rope winding roller and coordinating with the directional guidance of the rope guide plate, allows the traction rope to be laid out and wound in a spiral trajectory along the threaded grooves, avoiding overlapping and deviation. At the same time, the limiting rings on both sides of the rope guide plate further limit the position of the traction rope, ensuring that the traction rope always remains in an orderly state during transmission, effectively reducing the risk of mechanism jamming and stagnation, extending the service life of the traction rope and drive mechanism, solving the problem of disordered winding of the traction rope, and improving the smoothness of operation.

[0012] The rope winding rod and the rope-pulling plate are connected by threads, and a limiting guide rod that is slidably connected to the rope-pulling plate is provided on the support base. The limiting guide rod can restrict the rope-pulling plate from rotating with the rope winding rod, and only allow it to move smoothly along the axial direction of the rope winding rod, so as to ensure that the rope-pulling plate guides the traction rope stably and reliably. In addition, the fixed connection between the drive shaft and the support base also provides a solid support foundation for the entire drive mechanism, reducing the shaking of components during operation.

[0013] The drive shaft has a pre-set positioning groove on its outer wall. The rope winding rod is fixed by screws passing through and embedding into the positioning groove. The rope winding rod can be accurately positioned without repeated adjustments, which simplifies the installation operation. At the same time, the screw connection also makes the rope winding rod detachable. When the rope winding rod or traction rope is damaged, the damaged part can be replaced separately without replacing the entire drive shaft, which reduces maintenance costs and operation difficulty.

[0014] The drive shaft is made of hollow aluminum tube, which significantly reduces the overall weight of the mechanism while ensuring structural strength. This reduces the load on the building installation parts, making it suitable for various areas requiring shading, such as doors, windows, balconies, and lightweight awnings, thus improving the mechanism's adaptability to different scenarios. Attached Figure Description

[0015] Figure 1 This is a top-view perspective view of the drive mechanism in a preferred embodiment of the present invention; Figure 2 This is a side perspective view of the drive mechanism in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the drive shaft in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the drive shaft in a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the rope-winding stick in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the rope-pulling plate in a preferred embodiment of the present invention.

[0016] In the diagram: 1. Drive shaft, 2. Rope winding rod, 3. Rope pulling plate, 4. Traction rope, 5. Pulley, 6. First limiting ring, 7. Second limiting ring, 8. Limiting guide rod, 9. Support base, 10. Motor. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-6 This utility model provides a technical solution: a sunshade curtain driving mechanism, including a drive shaft 1 and pulleys 5. The drive shaft 1 and pulleys 5 are respectively located at both ends of the area to be shaded, and are used to support the traction rope 4 that drives the sunshade curtain. Support seats 9 connected to the building are provided at both ends of the drive shaft 1, and motors 10 for driving the drive shaft 1 to rotate are also provided on the support seats 9. The drive shaft 1 is made of hollow aluminum tubing to reduce the overall weight of the driving mechanism.

[0019] A rope winding rod 2 is provided on the outer wall of the drive shaft 1. A traction rope 4, laid out in a spiral trajectory, is provided on the outer surface of the rope winding rod 2. The traction rope 4 is connected to the sunshade curtain. A rope-pulling plate 3 is also fitted on the outer wall of the rope winding rod 2. As the rope winding rod 2 rotates, the rope-pulling plate 3 gradually moves along the outer wall of the rope winding rod 2 to limit the position of the traction rope 4 wound on the outer wall of the rope winding rod 2.

[0020] The traction rope 4 extends between the two sides of the rope winding rod 2, the rope-pulling plate 3, and the pulley 5. The rotation of the support base 9 of the rope winding rod 2 causes the traction rope 4 to move on the pulley 5. First, fix one end of the traction rope 4 to one end of the rope winding rod 2. Then, wind the traction rope 4 around the outer wall of the rope winding rod 2. When it encounters one side of the rope-pulling plate 3, extend the traction rope 4 out and pass around the pulley 5. Then, pull the free end of the traction rope 4 back to the other side of the rope-pulling plate 3 and continue to wind it in the same direction on the rope winding rod 2. Finally, fix the free end of the traction rope 4 to the other end of the rope winding rod 2.

[0021] The outer wall of the rope winding rod 2 is threaded, and the traction rope 4 winds along the threaded groove on the outer side of the rope winding rod 2, so that part of the traction rope 4 is wound regularly on the outer wall of the rope winding rod 2. A limiting guide rod 8 is fixedly connected to the support base 9 and slidably connected to the rope-pulling plate 3. The rope-pulling plate 3 can move on the outer wall of the limiting guide rod 8. The limiting guide rod 8 is designed to prevent the rope-pulling plate 3 from being rotated by the rope winding rod 2. The rope winding rod 2 and the rope-pulling plate 3 are threadedly connected, and the rotation of the rope winding rod 2 can move the rope-pulling plate 3.

[0022] Both sides of the rope-pulling plate 3 are provided with a first limiting ring 6 and a second limiting ring 7. The traction rope 4 passes through the first limiting ring 6, goes around the pulley 5, and then passes through the second limiting ring 7 to connect with the rope-winding rod 2.

[0023] The rope-pulling plate 3 is made of plastic. The plastic material is used to reduce the wear and tear on the traction rope 4 caused by the rope-pulling plate 3. The traction rope 4 is made of thin steel wire rope.

[0024] When using two traction ropes 4, two rope-winding rollers 2 with opposite threads are fixed to the outer wall of the drive shaft 1. Using two traction ropes 4 improves the stability of the sunshade. The opposite threads of the two rope-winding rollers 2 allow the two rope-pulling plates 3 to drive the two traction ropes 4 to move symmetrically.

[0025] A pre-positioned groove is provided on the outer wall of the drive shaft 1. A screw passes through the rope winding rod 2 and enters the pre-positioned groove to fix the rope winding rod 2 to the outer wall of the drive shaft 1. This is for convenient installation and positioning of the rope winding rod 2.

[0026] Installation process of the drive mechanism: The drive shaft 1 and pulley 5 are respectively installed at both ends of the area to be shaded. The drive shaft 1 is fixed to the building through the support seats 9 at both ends. The motor 10 is mounted on the support seat 9 and forms a power connection with the drive shaft 1. The rope winding rod 2 is fixed to the pre-positioned groove on the outer wall of the drive shaft 1 by screws. The rope pulling plate 3 is sleeved on the outer wall of the rope winding rod 2 and is slidably connected to the limiting guide rod 8 on the support seat 9. The rope winding rod 2 and the rope pulling plate 3 are threaded together.

[0027] One end of the traction rope 4 is fixed to one end of the rope winding rod 2. It is laid flat and wound along the threaded groove on the outer wall of the rope winding rod 2 in a spiral trajectory. It extends to the pulley 5 through the limiting ring on one side of the rope-pulling plate 3, such as the first limiting ring 6. After passing around, it is folded back through the limiting ring on the other side of the rope-pulling plate 3, such as the second limiting ring 7. It continues to wind along the same direction as the rope winding rod 2. Finally, the other end is fixed to the other end of the rope winding rod 2, forming a closed-loop transmission path. If two traction ropes 4 are used, two rope winding rods 2 with opposite threads are configured accordingly. The two traction ropes 4 are wound in the above manner, and their initial positions are symmetrical.

[0028] The operation process of the drive mechanism: The motor 10 starts and outputs torque, driving the drive shaft 1 to rotate in the forward direction around its own axis; since the rope winding rod 2 is fixed to the drive shaft 1 by screws, the drive shaft 1 synchronously drives the rope winding rod 2 to rotate in the forward direction.

[0029] When the rope winding rod 2 rotates, the thread on its outer wall engages with the thread on the rope-pulling plate 3 to generate relative movement. At the same time, the guide rod 8 restricts the rope-pulling plate 3 from rotating with the rope winding rod 2, allowing the rope-pulling plate 3 to move slowly along the axial direction of the rope winding rod 2. If it is a double rope winding rod + double traction rope structure, the two rope winding rods with opposite threads will drive the corresponding rope-pulling plates to move symmetrically in opposite directions.

[0030] During the forward rotation of the rope winding rod 2, the threaded groove on its outer wall guides the traction rope 4 to wind in an orderly manner. At the same time, the rope-pulling plate 3 limits the position of the traction rope 4 through the limiting rings on both sides to prevent the traction rope 4 from shifting or overlapping. One end of the traction rope 4 winds and tightens with the rope winding rod 2, while the other end slides along the pulley 5 and pulls the sunshade curtain, so that the sunshade curtain gradually unfolds in the preset direction until it covers the area to be shaded. After receiving the stop signal, the motor 10 stops, the drive mechanism maintains the current state, and the sunshade curtain unfolds stably.

[0031] When motor 10 drives drive shaft 1 to rotate in the opposite direction around its own axis, the sunshade curtain closes stably.

[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "outer", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sunshade curtain driving mechanism, characterized in that: The device includes a drive shaft (1) and a pulley (5), which are respectively located at both ends of the area to be shaded. The two ends of the drive shaft (1) are provided with support seats (9) connected to the building. The support seats (9) are also provided with a motor (10) that drives the drive shaft (1) to rotate. A rope-winding rod (2) is provided on the outer wall of the drive shaft (1). A traction rope (4) with a spiral trajectory is provided on the outer surface of the rope-winding rod (2). A rope-pulling plate (3) is also sleeved on the outer wall of the rope-winding rod (2). The traction rope (4) extends between the rope-winding rod (2), the rope-pulling plate (3) on both sides and the pulley (5). The rotation of the rope-winding rod (2) and the movement of the support seat (9) drive the traction rope (4) to move on the pulley (5).

2. The sunshade curtain driving mechanism according to claim 1, characterized in that: The outer wall of the rope winding rod (2) is provided with threads, and the traction rope (4) is wound around the outer wall of the rope winding rod (2) along the thread groove; a limiting guide rod (8) is fixedly connected to the support base (9) and slidably connected to the rope pulling plate (3), and the rope winding rod (2) is threadedly connected to the rope pulling plate (3).

3. A sunshade curtain driving mechanism according to claim 1 or 2, characterized in that: Both sides of the rope-pulling plate (3) are provided with limiting rings, and the traction rope (4) passes through the limiting rings.

4. The sunshade curtain driving mechanism according to claim 3, characterized in that: The rope-pulling plate (3) is made of plastic.

5. A sunshade curtain driving mechanism according to claim 2, characterized in that: When using two traction ropes (4), two rope-winding rods (2) with opposite threads are fixed to the outer wall of the drive shaft (1).

6. A sunshade curtain driving mechanism according to claim 1, characterized in that: A pre-positioning groove is provided on the outer wall of the drive shaft (1). The screw passes through the rope winding rod (2) and enters the pre-positioning groove to fix the rope winding rod (2) on the outer wall of the drive shaft (1).

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