Transmission structure of double-row system curtain

Abstract

According to the technical scheme, the transmission structure is characterized by comprising a curtain box, a first double-row rope winder, a second double-row rope winder, a first control shaft and a second control shaft are arranged in the curtain box, the first double-row rope winder and the second double-row rope winder form a double-row system, and the first control shaft and the second control shaft are used for driving the two double-row rope winders. Two power elements for transmitting power to the first control shaft and the second control shaft respectively are arranged in the curtain box, each power element comprises a power source and a transmission box, each transmission box comprises an input end and two output ends, the input ends are in transmission connection with the power sources, and one of the two output ends is in transmission connection with the first control shaft or the second control shaft. According to the utility model, the transmission structure is optimized, so that a traditional power source applied to a single-row system curtain can be conveniently applied to a double-row system curtain.

Description

Technical Field

[0001] This utility model relates to the field of double-row system curtain technology, and more specifically to a transmission structure for a double-row system curtain. Background Technology

[0002] A double-row controlled curtain system uses two systems to control two lower beams, achieving different adjustments to the curtain. For example, a day-night curtain. Refer to the inventor's previously filed patent, publication number CN222362951U, which discloses a horizontal curtain with a double-row controlled system. It includes a curtain body and two liftable lower beams A and B. The curtain body contains a double-row rope winder, which includes two parallel and oppositely arranged rope tubes. Ropes A and B are wound around the two rope tubes respectively. The bottom of the double-row rope winder has outlet holes A and B on both sides for ropes A and B to pass through. Ropes A and B are connected to lower beams A and B respectively.

[0003] However, it was found during use that, since the double-row system requires control of the two rope winding tubes of the double-row rope winding device, it is different from the traditional single-row horizontal curtain system. It requires two drive rods or control shafts for control, and the power source used to drive the two control shafts needs to be specially adapted.

[0004] The first method is exemplified by the inventor's previously filed patent application, publication number CN222333649U, which describes a control head component for a double-row horizontal curtain system. The power source for this control head is the control head itself, which can simultaneously control two control shafts.

[0005] The second method involves setting up two traditional power sources for single-row curtain systems to control two control shafts respectively. However, since existing power sources are designed for single-row curtain systems, directly installing them into double-row curtain systems can lead to problems such as misalignment of the power source output and the control shafts, and unbalanced forces. Therefore, regardless of whether the first or second method is used, the power source structure needs to be adjusted to accommodate the control of two control rods. Adjusting the power source structure is complex, increases manufacturing costs, and is inconvenient. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the present invention provides a transmission structure for a double-row system curtain, which optimizes the transmission structure so that the power source traditionally used in single-row system curtains can be easily applied to double-row system curtains.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a transmission structure for a double-row system curtain, comprising a curtain box, wherein a first double-row rope winder, a second double-row rope winder constituting a double-row system, and a first control shaft and a second control shaft for driving the two double-row rope winders are provided inside the curtain box, characterized in that: the curtain box is provided with two power elements that transmit power to the first control shaft and the second control shaft respectively, the power element comprising a power source and a transmission box, the transmission box comprising an input end and two output ends, the input end being drivenly connected to the power source, and one of the two output ends being drivenly connected to the first control shaft or the second control shaft.

[0008] The present invention is further configured such that: the transmission box includes three interconnected and side-by-side transmission ends, one of which constitutes the input end, and the other two transmission ends constitute the output end.

[0009] The present invention is further configured such that: the middle one of the three transmission ends constitutes the input end, and the two transmission ends on both sides constitute the output end.

[0010] The present invention is further configured such that: the transmission box includes a box body, and three gear components are rotatably arranged in parallel and meshing with each other inside the box body. The gear components have a through hole in the middle, which is used to insert with the output shaft of the power source, the first control shaft and the second control shaft to form a circumferential fixed connection.

[0011] The present invention is further configured such that: the through hole is a square hole, and the output shaft of the power source, the first control shaft and the second control shaft are all configured as four-corner bar structures adapted to the square hole.

[0012] The present invention is further configured such that: the power source is a spring box, the spring box is provided with a fixed rod, a rotating rod and a rotating wheel meshing with the gear of the rotating rod, a coil spring is wound on the fixed rod, the two ends of the coil spring are respectively fixed on the fixed rod and the rotating rod, and an output shaft that rotates synchronously with the rotating wheel is provided in the middle of the rotating wheel.

[0013] The present invention is further configured such that the power source includes, but is not limited to, a single-output spring box, brake head, or motor.

[0014] In summary, this utility model has the following beneficial effects:

[0015] Compared to existing technologies, this invention incorporates a power element consisting of a power source and a transmission box. By adjusting the output shaft of the power source, which is traditionally used in single-row curtain systems with a single output, in the transmission box, the orientation and balance point of the power transmission are adjusted, making it better suited for double-row curtain systems. This eliminates the need for structural modifications to the complex power source; only the relatively simple transmission box is required, significantly reducing manufacturing costs and enhancing the product's versatility.

[0016] Meanwhile, the transmission box has two output ends, which can flexibly adjust the matching between the corresponding control shaft and either output end, increasing the flexibility of assembly. Attached Figure Description

[0017] Figure 1 This is an external schematic diagram of the overall structure of a double-row curtain system.

[0018] Figure 2 This is a schematic diagram of the overall internal structure of a double-row curtain system.

[0019] Figure 3 This is a magnified schematic diagram of the power element on one side.

[0020] Figure 4 This is a schematic diagram of the connection structure between the transmission box and the power source output shaft, the first control shaft, and the second control shaft.

[0021] Figure 5 This is a schematic diagram of the internal structure of the transmission box.

[0022] Figure 6 Schematic diagram of the internal structure of the spring box and its cooperation with the transmission box

[0023] Reference numerals: 1. Curtain box; 2. First double-row rope winder; 3. Second double-row rope winder; 4. First control shaft; 5. Second control shaft; 6. Power element; 61. Power source; 62. Transmission box; 620. Transmission end; 621. Input end; 622. Output end; 7. Box body; 71. Gear component; 711. Through hole; 8. Fixing rod; 81. Coil spring; 9. Rotating rod; 10. Rotating wheel. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] This embodiment discloses a transmission structure for a double-row curtain system, such as... Figure 1-6As shown, the system includes a curtain box 1. Inside the curtain box 1 are a first double-row rope winder 2, a second double-row rope winder 3, and a first control shaft 4 and a second control shaft 5 for driving the two double-row rope winders. Each double-row rope winder has two rope tubes with pull ropes wound around them to control the raising and lowering of the curtain's upper and lower beams. The curtain box 1 contains two power elements 6 that transmit power to the first control shaft 4 and the second control shaft 5, respectively. Each power element 6 includes a power source 61 and a transmission box 62. The transmission box 62 includes an input end 621 and two output ends 622. The input end 621 is connected to the power source 61, and one of the two output ends 622 is connected to either the first control shaft 4 or the second control shaft 5. In this embodiment, the two power elements 6 are respectively located on both sides, and the structures of the power elements 6 on both sides are identical. Figure 3 For example, refer to Figure 3 The power element transmits power to the second control shaft 5, and the corresponding power element on the other side transmits power to the first control shaft 4, but it can also... Figure 3 The power element on one side transmits power to the first control shaft 4, and the power element on the other side transmits power to the second control shaft 5. This can be flexibly adjusted, increasing assembly flexibility. Therefore, by installing two power sources 61 from a traditional single-row curtain system, along with the transmission box 62, it can be applied to a double-row curtain system. Specifically, since a traditional single-row curtain system has only one control shaft, the orientation of the output shaft of its power source 61 is adapted to the control shaft in the single-row system, and the transmission force balance is also compatible with the single-row system. However, in a double-row curtain system, there are two control shafts, and their positions differ from those in the single-row system. If the power source of a traditional single-row curtain system is directly used, it will inevitably lead to an off-center installation, occupying a large space and resulting in unbalanced transmission force and poor performance. By using the transmission box 62 in this embodiment, the orientation of the output shaft of the power source from the traditional single-row system is adjusted, better adapting to the double-row system. The structure is simple and reliable, eliminating the need for adjustments to the more complex power source structure and significantly reducing costs.

[0026] Furthermore, refer to Figure 6 The transmission box 62 includes three interconnected and side-by-side transmission ends 620, one of which constitutes an input end 621, and the other two constitute an output end 622. As a preferred embodiment, see [reference needed]. Figure 4The middle one of the three transmission ends 620 constitutes the input end 621, and the two transmission ends 620 on both sides constitute the output end 622. In this embodiment, the first control shaft 4 and the second control shaft 5 are symmetrically arranged on both sides. Therefore, in order to achieve the above-mentioned transmission force balance, the middle one is optimal as the input end 621, and the two sides are optimal as the output ends 622, ensuring that the entire transmission force is located on the center line of the curtain box. However, if the internal structure of the double-row system is adjusted, or if different power sources are used, the transmission ends 620 at different positions can be adaptively selected as the input and output ends, which is highly flexible.

[0027] Furthermore, refer to Figure 5 The transmission box 62 includes a box body 7. Three gear components 71 are rotatably arranged side-by-side and meshing within the box body 7. Each gear component 71 has a through hole 711 in its center, which is used to insert into the output shaft of the power source 61, the first control shaft 4, and the second control shaft 5 to form a circumferential fixed connection. Specifically, the through hole 711 is a square hole, and the output shaft of the power source 61, the first control shaft 4, and the second control shaft 5 are all configured as four-cornered bar structures adapted to the square hole. Thus, a circumferential fixed connection can be formed through insertion, resulting in a simple structure and good transmission effect.

[0028] Furthermore, in this embodiment, referring to Figure 6 The power source 61 is configured as a spring box, which contains a fixed rod 8, a rotating rod 9, and a rotating wheel 10 meshing with a gear on the rotating rod 9. A coil spring 81 is wound around the fixed rod 8, with its two ends fixed to the fixed rod 8 and the rotating rod 9, respectively. An output shaft that rotates synchronously with the rotating wheel 10 is located in the middle of the wheel. Through this structure, the power to rotate the control shaft is transmitted to the output shaft and the rotating wheel 10 via the transmission box 62. Then, the gear structure drives the rotating rod 9 to rotate, causing the coil spring to wrap from the fixed rod 8 to the rotating rod 9. The spring force is accumulated in the spring box, and then released back to the control shaft via the output shaft, thus achieving auxiliary control of the curtains.

[0029] Furthermore, as another embodiment, the transmission box 62 of this product can not only use a spring box as a power source 61, but also be matched with various single-output power sources originally adapted to single-row systems, such as brake heads or motors, so that these complex power sources do not need to be modified, and the transmission box can be adapted to make it more convenient.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transmission structure for a double-row curtain system, comprising a curtain box (1), wherein the curtain box (1) is provided with a first double-row rope winder (2), a second double-row rope winder (3) constituting the double-row system, and a first control shaft (4) and a second control shaft (5) for driving the two double-row rope winders, characterized in that: The curtain box (1) is provided with two power elements (6) that transmit power to the first control shaft (4) and the second control shaft (5) respectively. The power element (6) includes a power source (61) and a transmission box (62). The transmission box (62) includes an input end (621) and two output ends (622). The input end (621) is connected to the power source (61) in a transmission manner, and one of the two output ends (622) is connected to the first control shaft (4) or the second control shaft (5) in a transmission manner.

2. The transmission structure of a double rail system curtain according to claim 1, characterized in that: The transmission box (62) includes three interconnected and side-by-side transmission ends (620), one of which constitutes the input end (621), and the other two transmission ends (620) constitute the output end (622).

3. The transmission structure of a double rail system curtain according to claim 2, characterized in that: The middle one of the three drive ends (620) constitutes the input end (621), and the two drive ends (620) on both sides constitute the output end (622).

4. The transmission structure of a double rail system curtain according to claim 1, characterized in that: The transmission box (62) includes a box body (7), and three gear components (71) are rotatably arranged in the box body (7) and mesh with each other. The gear component (71) has a through hole (711) in the middle. The through hole (711) is used to insert into the output shaft of the power source (61), the first control shaft (4) and the second control shaft (5) to form a circumferential fixed connection.

5. The transmission structure of a double rail system curtain according to claim 4, characterized in that: The through hole (711) is set as a square hole, and the output shaft, the first control shaft (4) and the second control shaft (5) of the power source (61) are all set as four-corner bar structures adapted to the square hole.

6. The transmission structure of a double-row curtain system according to claim 1, characterized in that: The power source (61) is configured as a spring box, which contains a fixed rod (8), a rotating rod (9) and a rotating wheel (10) meshing with the rotating rod (9). A coil spring (81) is wound around the fixed rod (8), and the two ends of the coil spring (81) are fixed to the fixed rod (8) and the rotating rod (9) respectively. The rotating wheel (10) has an output shaft that rotates synchronously with it in the middle.

7. A transmission structure of a double rail system curtain according to any one of claims 1 to 5, characterized in that: The power source (61) includes, but is not limited to, a single-output spring box, brake head, or motor.

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