Ceiling curtain adopting motor with clutch structure

Abstract

The utility model relates to a ceiling curtain adopting a motor with a clutch structure. The technical problem that a ceiling curtain cannot be manually operated when an existing motor breaks down or is powered off is solved. Comprising two rail bodies which are correspondingly arranged in parallel, ceiling curtain cloth with at least one end being a free end is arranged between the rail bodies, a main transmission box is arranged between one ends of the two rail bodies, an auxiliary transmission box is arranged between the other ends of the two rail bodies, first belt wheels are arranged at the two ends of the main transmission box respectively, and second belt wheels are arranged at the two ends of the auxiliary transmission box respectively. Synchronous belts are wound between the first belt wheels and the second belt wheels, one of the two first belt wheels is connected with a driving motor which is located in the main transmission box and provided with a clutch structure, and the two second belt wheels are driven belt wheels and are in mutual linkage. The electric curtain has the advantages that the driving motor with the clutch structure is adopted, power transmission can be cut off when needed, overload damage of the motor is prevented, meanwhile, the clutch structure can support a manual mode, the position of the curtain cloth is adjusted through manual operation during power failure or failure, and operation flexibility is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of skylight curtain equipment, specifically relating to a skylight curtain using a motor with a clutch structure. Background Technology

[0002] Skylight blinds are widely used in shopping malls, sunrooms, greenhouses, and terraces to regulate sunlight, maintain a suitable indoor temperature, and prevent strong sunlight radiation. Traditional skylight blinds require manual operation to open and close. For larger skylight blinds or those installed at higher positions, this is very laborious and makes it difficult to precisely control the opening and closing degree. Therefore, some skylight blinds are motor-driven, but in the event of motor failure or power outage, the skylight blinds cannot be manually operated, causing inconvenience to users.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses an electric skylight blind and a curtain frame for the electric skylight blind [202120636000.6], which includes a curtain frame, a curtain body on the curtain frame, one end of the curtain body being connected to the curtain frame, and a movable horizontal rail installed at the other end of the curtain body. The curtain frame is characterized by having a device mounting cavity, in which a long shaft and a driver are installed. Transmission components are respectively provided between the two ends of the long shaft and the corresponding ends of the movable horizontal rail, so that the long shaft drives the movable horizontal rail to move along the unfolding direction of the curtain body through the transmission components. The curtain frame is provided with mounting holes for inserting the long shaft into the curtain frame.

[0004] The above solution has solved the problem of existing skylight curtains requiring manual operation to open and close to some extent. However, the solution still has many shortcomings, such as the inability to manually operate the skylight curtains when the motor fails or there is a power outage. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a skylight curtain that uses a motor with a clutch structure.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a skylight curtain using a motor with a clutch structure, comprising two parallel and corresponding track bodies, with a skylight curtain fabric having at least one free end between the track bodies. A main drive box is located between one end of the two track bodies, and a secondary drive box is located between the other ends. The main drive box has first pulleys at both ends, and the secondary drive box has second pulleys at both ends. A synchronous belt, passing through the track bodies and connected to the free end of the skylight curtain fabric, is wound between the first and second pulleys. One of the first pulleys is the driving pulley and is connected to a drive motor with a clutch structure located in the main drive box. Both second pulleys are driven pulleys and are linked together. The clutch-driven drive motor allows for manual operation in case of power failure or malfunction, improving emergency handling capabilities and preventing overload damage to the drive motor. Furthermore, one of the first pulleys is the driving pulley, and the other is a free pulley.

[0007] In the aforementioned ceiling blind with a motor featuring a clutch structure, the main drive box and the auxiliary drive box are arranged in parallel and corresponding positions. The main drive box and the auxiliary drive box are perpendicular to the track body, and the main drive box, the auxiliary drive box, and the two track bodies are assembled to form a rectangular frame structure. This rectangular frame structure can evenly distribute the weight of the curtain fabric and the driving force of the motor, reducing the risk of frame deformation. It is suitable for large-span installation scenarios and facilitates modular assembly, adapting to windows or roofs of different sizes, thus reducing installation complexity and cost.

[0008] In the aforementioned ceiling curtain using a motor with a clutch structure, the ceiling curtain fabric is a honeycomb fabric. One end of the ceiling curtain fabric near the main drive box is a fixed end, located on the side of the main drive box near the auxiliary drive box. The other end of the ceiling curtain fabric is a free end, and this free end is equipped with a curtain sliding seat located between two track bodies and slidably aligned with the track bodies axially. The curtain sliding seat cooperates with the track bodies to restrict the movement trajectory of the ceiling curtain fabric, ensuring that the ceiling curtain fabric slides smoothly along the track body axially, preventing swaying or derailment.

[0009] In the aforementioned ceiling blind with a motor featuring a clutch structure, each of the two track bodies has an axially extending track opening on one side. The two sides of the ceiling blind fabric and the two ends of the blind sliding seat extend correspondingly into the track openings of the two track bodies. The edges of the ceiling blind fabric and the blind sliding seat are embedded inside the track bodies, resulting in a clean and aesthetically pleasing appearance. This design also prevents external debris from entering the track and affecting operation. Furthermore, the track openings physically limit and support the ceiling blind fabric, ensuring it always moves along the track trajectory and enhancing safety.

[0010] In the aforementioned ceiling blind using a motor with a clutch structure, the track body is a profile-shaped structure with an axially extending track groove on its inner side that communicates with the track opening. The synchronous belt passes through the track groove, and a connecting seat is provided on the synchronous belt. The connecting seat is connected to the end of the curtain sliding seat via a bent connecting frame. The connecting frame shortens the connection distance, reduces transmission backlash, and allows the motor driving force to act directly on the curtain sliding seat, improving response speed and transmission efficiency.

[0011] In the aforementioned ceiling curtain using a motor with a clutch structure, the main drive box and the auxiliary drive box are matched in size. The upper sides of both the main and auxiliary drive boxes have openings that are closed by a top cover. The sides of the main and auxiliary drive boxes that are close to each other each have a shielding portion that extends axially along the main and auxiliary drive boxes. The removable top cover facilitates inspection and maintenance of internal components such as the motor and pulleys without requiring complete frame disassembly, reducing maintenance costs. Simultaneously, the shielding portion covers the gap between the drive box and the ceiling curtain fabric, preventing dust from entering the internal mechanical structure and improving the overall smoothness and simplicity of the appearance.

[0012] In the above-mentioned ceiling curtain using a motor with a clutch structure, the main transmission box is provided with first pulley boxes at both ends, and the first pulleys are respectively rotatably arranged in the first pulley boxes. The auxiliary transmission box is provided with second pulley boxes at both ends, and the second pulleys are respectively rotatably arranged in the second pulley boxes.

[0013] In the aforementioned ceiling curtain using a motor with a clutch structure, one side of the first pulley box has a drive transmission box connecting part that plugs into the main transmission box slot inside the main transmission box. The adjacent side of the first pulley box has a first track insertion part that plugs into one end of the track positioning slot on the outside of the track body. One side of the second pulley box has a secondary drive transmission box connecting part that plugs into the secondary transmission box slot inside the secondary transmission box. The adjacent side of the second pulley box has a second track insertion part that plugs into the other end of the track positioning slot. The pulley box, transmission box, and track can be quickly assembled via a plug-in structure, requiring no complex tools. This is suitable for rapid on-site installation and debugging, improving construction efficiency. Furthermore, the plug-in structure ensures strict alignment between the pulley axis and the track axis, avoiding transmission jamming or noise caused by installation deviations and improving operational accuracy.

[0014] In the aforementioned skylight blind employing a motor with a clutch structure, the drive motor includes a motor body extending axially within the main transmission housing. The motor shaft of the motor body is connected to a first pulley located in one of two first pulley boxes via the clutch structure. The clutch structure supports manual operation, allowing for curtain position adjustment even in the event of a power outage or control system failure, thus enhancing practicality.

[0015] In the aforementioned ceiling curtain employing a motor with a clutch structure, a linkage rod is axially inserted into the secondary transmission box. Both ends of the linkage rod pass through two second pulley boxes and are connected to the second pulleys. The linkage rod replaces additional transmission components, reducing mechanical redundancy, lowering costs and maintenance complexity. Simultaneously, the linkage rod ensures that the rotational speeds of the two second pulleys are completely identical, preventing asynchronous movement.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This device uses a drive motor with a clutch structure, which can disconnect the power transmission when needed to prevent motor overload damage and extend the equipment life. At the same time, the clutch structure supports manual mode, allowing manual adjustment of the curtain position in case of power failure or malfunction. It can also be started by pulling by hand without the need for remote control, improving operational flexibility.

[0018] 2. The main transmission box, auxiliary transmission box and two track bodies of the device are assembled to form a rectangular frame. Each component is quickly assembled through a plug-in design without complicated tools. The installation efficiency is high and the structure is stable. The first pulley box and the second pulley box have built-in pulleys, which are fixed to the transmission box and track bodies by plugging in, reducing external connecting parts, reducing installation complexity, and avoiding the risk of wear of exposed parts.

[0019] 3. The synchronous belt of this device is wound between the pulleys of the main and auxiliary transmission boxes. Through tooth meshing, it achieves zero-slip transmission with high transmission accuracy. It can ensure that the two ends of the ceiling curtain are opened or closed synchronously, avoiding the curtain from tilting. At the same time, the linkage rod in the auxiliary transmission box connects to the second pulleys on both sides, forcing the second pulleys to rotate synchronously, further improving the transmission synchronization. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an internal schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the main transmission box in this utility model.

[0023] Figure 4 This is a structural schematic diagram of the auxiliary transmission box in this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the first pulley box in this utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the second pulley box in this utility model.

[0026] Figure 7 This is a schematic diagram of the track body in this utility model.

[0027] Figure 8 This is the utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0028] In the diagram: Track body 1, main transmission box 11, auxiliary transmission box 12, first pulley 13, second pulley 14, synchronous belt 15, drive motor 16, track opening 17, track groove 18, top cover 19, shielding part 20, canopy curtain 2, fixed end 21, free end 22, curtain sliding seat 23, connecting seat 3, connecting frame 31, first pulley box 4, second pulley box 41, main transmission box groove 42, active transmission box connecting part 43, track positioning groove 44, first track insertion part 45, auxiliary transmission box groove 46, auxiliary transmission box connecting part 47, second track insertion part 48, linkage rod 49. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-8 As shown, a skylight curtain using a motor with a clutch structure includes two parallel and corresponding track bodies 1. A skylight curtain 2 with at least one free end 22 is provided between the track bodies 1. A main transmission box 11 is provided between one end of the two track bodies 1 and a secondary transmission box 12 is provided between the other ends. The main transmission box 11 has first pulleys 13 at both ends and the secondary transmission box 12 has second pulleys 14 at both ends. A synchronous belt 15 passing through the track body 1 and connected to the free end 22 of the skylight curtain 2 is wound between the first pulleys 13 and the second pulleys 14. One of the two first pulleys 13 is a driving pulley and is connected to a drive motor 16 with a clutch structure located in the main transmission box 11. The other first pulley 13 is a free pulley. The two second pulleys 14 are both driven pulleys and are linked together.

[0031] The drive motor 16 with a clutch structure allows for manual operation in case of power failure or malfunction. By manually pulling the ceiling curtain 2, emergency handling capabilities are enhanced, and manual start-up is possible without remote control. For example, the drive motor 16 can adopt a structure similar to that of patent CN217789486U, which includes a motor control board and Hall effect sensors. When the ceiling curtain 2 is pulled, the output of the clutch structure is rotated. The Hall effect sensor senses the rotation signal and transmits it to the motor control board. Upon receiving the signal, the motor control board determines the direction of the ceiling curtain 2's movement, thereby starting the motor to achieve the manual start function. Therefore, without a remote control, the user can manually pull the curtain to start the motor. Furthermore, in the event of a power outage, the ceiling curtain 2 can also be opened and closed manually.

[0032] like Figure 1 As shown, the main drive box 11 and the auxiliary drive box 12 are arranged in parallel and correspond to each other. The main drive box 11 and the auxiliary drive box 12 are perpendicular to the track body 1, and the main drive box 11, the auxiliary drive box 12, and the two track bodies 1 are assembled to form a rectangular frame structure. The rectangular frame structure can evenly distribute the weight of the curtain and the driving force of the motor, reduce the risk of frame deformation, is suitable for large-span installation scenarios, and facilitates modular assembly, adapting to windows or roofs of different sizes, reducing installation complexity and cost.

[0033] The ceiling curtain 2 is a honeycomb curtain. One end of the ceiling curtain 2 near the main drive box 11 is a fixed end 21, which is located on the side of the main drive box 11 near the auxiliary drive box 12. The other end of the ceiling curtain 2 is a free end 22, which is provided with a curtain sliding seat 23 located between the two track bodies 1 and slidably disposed with respect to the track bodies 1. The curtain sliding seat 23 cooperates with the track bodies 1 to restrict the movement trajectory of the ceiling curtain 2, ensuring that the ceiling curtain 2 slides smoothly along the axial direction of the track bodies 1 and avoiding shaking or derailment.

[0034] Specifically, each of the two track bodies 1 has an axially extending track opening 17 on one side. The two sides of the ceiling curtain 2 and the two ends of the curtain sliding seat 23 extend into the inner sides of the track openings 17 of the two track bodies 1 respectively. The edges of the ceiling curtain 2 and the curtain sliding seat 23 are embedded in the track body 1, resulting in a simple and beautiful appearance. This also prevents external debris from entering the track and affecting operation. At the same time, the track openings 17 provide physical restraint for the ceiling curtain 2, supporting and lifting it, and ensuring that the ceiling curtain 2 always moves along the trajectory of the track body 1, thus improving safety.

[0035] Combination Figure 2 , Figure 7 and Figure 8As shown, the track body 1 has a profile-shaped structure and an axially extending track groove 18 on its inner side, which communicates with the track opening 17. The synchronous belt 15 passes through the track groove 18, and a connecting seat 3 is provided on the synchronous belt 15. The connecting seat 3 is connected to the end of the curtain sliding seat 23 through a bent connecting frame 31. By shortening the connection distance through the connecting frame 31, the transmission gap is reduced, allowing the motor driving force to act directly on the curtain sliding seat 23, thereby improving the response speed and transmission efficiency.

[0036] Combination Figure 1 , Figure 3 and Figure 4 As shown, the main transmission box 11 and the auxiliary transmission box 12 are matched in size. The upper sides of both the main transmission box 11 and the auxiliary transmission box 12 have openings that are closed by a top cover 19. The sides of the main transmission box 11 and the auxiliary transmission box 12 that are close to each other each have relatively extended shielding parts 20 that extend axially along the main transmission box 11 and the auxiliary transmission box 12. The detachable design of the top cover 19 facilitates the inspection and maintenance of internal components such as the motor and pulleys without requiring the entire frame to be disassembled, reducing maintenance costs. Simultaneously, the shielding parts 20 cover the gap at the connection between the transmission box and the ceiling curtain 2, preventing dust from entering the internal mechanical structure and improving the overall flatness and simplicity of the appearance.

[0037] like Figure 1 As shown, the main transmission box 11 has a first pulley box 4 at both ends, and the first pulleys 13 are respectively rotatably arranged in the first pulley box 4. The auxiliary transmission box 12 has a second pulley box 41 at both ends, and the second pulleys 14 are respectively rotatably arranged in the second pulley box 41.

[0038] Combination Figures 3-6 As shown, the first pulley box 4 has a drive transmission box connecting part 43 on one side, which is plugged into the main transmission box groove 42 inside the main transmission box 11. The adjacent side of the first pulley box 4 has a first track insertion part 45, which is plugged into one end of the track positioning groove 44 on the outside of the track body 1. The second pulley box 41 has an auxiliary drive transmission box connecting part 47 on one side, which is plugged into the auxiliary transmission box groove 46 inside the auxiliary transmission box 12. The adjacent side of the second pulley box 41 has a second track insertion part 48, which is plugged into the other end of the track positioning groove 44. The pulley box, transmission box, and track can be quickly assembled via a plug-in structure, requiring no complex tools. This is suitable for rapid on-site installation and debugging, improving construction efficiency. Furthermore, the plug-in structure ensures strict alignment of the pulley axis with the track axis, avoiding transmission jamming or noise caused by installation deviations and improving operational accuracy.

[0039] like Figure 2As shown, the drive motor 16 includes a motor body extending axially within the main transmission housing 11. The motor shaft of the motor body is connected to a first pulley 13 located in one of the two first pulley housings 4 via a clutch mechanism. The clutch mechanism supports manual operation, allowing adjustment of the curtain position even in the event of a power outage or control system failure, thus enhancing practicality.

[0040] The auxiliary transmission box 12 has an axially inserted linkage rod 49, with both ends of the linkage rod 49 passing through two second pulley boxes 41 and connected to the second pulleys 14. The linkage rod 49 replaces additional transmission components, reducing mechanical redundancy, lowering costs and maintenance complexity. At the same time, the linkage rod 49 ensures that the rotational speeds of the second pulleys 14 on both sides are completely consistent, avoiding asynchronous movement.

[0041] The principle of this embodiment is as follows:

[0042] The drive motor 16 is connected to one of the first pulleys 13. The first pulley 13 is connected to the second pulley 14 via the synchronous belt 15. The two second pulleys 14 are connected via the linkage rod 49. The fixed end 21 of the ceiling curtain 2 is fixedly connected to the main transmission box 11 or the auxiliary transmission box 12. The free end 22 is connected to the synchronous belt 15 via the curtain sliding seat 23, the connecting frame 31 and the connecting seat 3. When the drive motor 16 runs, it drives the free end 22 of the ceiling curtain 2 to move axially. In case of power failure or control system failure, the movement of the ceiling curtain 2 can be manually operated through the clutch structure.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0044] Although this document frequently uses terms such as track body 1, main transmission box 11, auxiliary transmission box 12, first pulley 13, second pulley 14, synchronous belt 15, drive motor 16, track opening 17, track groove 18, top cover 19, shielding part 20, canopy curtain 2, fixed end 21, free end 22, curtain sliding seat 23, connecting seat 3, connecting frame 31, first pulley box 4, second pulley box 41, main transmission box groove 42, active transmission box connecting part 43, track positioning groove 44, first track insertion part 45, auxiliary transmission box groove 46, auxiliary transmission box connecting part 47, second track insertion part 48, and linkage rod 49, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A skylight curtain employing a motor with a clutch structure, comprising two parallel and corresponding track bodies (1), wherein a skylight curtain fabric (2) with at least one free end (22) is provided between the track bodies (1), characterized in that, A main drive box (11) is provided between one end of two track bodies (1) and a secondary drive box (12) is provided between the other ends. The main drive box (11) is provided with first pulleys (13) at both ends and the secondary drive box (12) is provided with second pulleys (14) at both ends. A synchronous belt (15) is wound between the first pulleys (13) and the second pulleys (14), passing through the track body (1) and connected to the free end (22) of the ceiling curtain (2). One of the two first pulleys (13) is the driving pulley and is connected to a drive motor (16) with a clutch structure located in the main drive box (11). The two second pulleys (14) are both driven pulleys and are linked together.

2. A skylight blind with a motor featuring a clutch structure according to claim 1, characterized in that, The main drive box (11) and the auxiliary drive box (12) are arranged in parallel and correspond to each other. The main drive box (11) and the auxiliary drive box (12) are perpendicular to the track body (1) respectively, and the main drive box (11), the auxiliary drive box (12) and the two track bodies (1) are assembled to form a rectangular frame structure.

3. A skylight blind with a motor featuring a clutch structure according to claim 1, characterized in that, The ceiling curtain (2) is a honeycomb curtain. One end of the ceiling curtain (2) near the main drive box (11) is a fixed end (21) and the fixed end (21) is located on the side of the main drive box (11) near the auxiliary drive box (12). The other end of the ceiling curtain (2) is a free end (22) and the free end (22) is provided with a curtain sliding seat (23) located between the two track bodies (1) and axially sliding with the track bodies (1).

4. A skylight blind with a motor having a clutch structure according to claim 3, characterized in that, The two track bodies (1) have axially extended track openings (17) on their respective sides. The two sides of the ceiling curtain (2) and the two ends of the curtain sliding seat (23) extend to the inside of the track openings (17) of the two track bodies (1).

5. A skylight blind with a motor having a clutch structure according to claim 4, characterized in that, The track body (1) is a profile structure and the inner side of the track body (1) has an axially extending track groove (18) that is connected to the track opening (17). The synchronous belt (15) passes through the track groove (18). The synchronous belt (15) is provided with a connecting seat (3), and the connecting seat (3) is connected to the end of the curtain sliding seat (23) through a bent connecting frame (31).

6. A skylight blind with a motor having a clutch structure according to claim 1, characterized in that, The main transmission box (11) and the auxiliary transmission box (12) are matched in size. The upper side of the main transmission box (11) and the auxiliary transmission box (12) are respectively open and the open is closed by a top cover (19). The main transmission box (11) and the auxiliary transmission box (12) have a shielding part (20) that extends relative to each other and extends along the axial direction of the main transmission box (11) and the auxiliary transmission box (12) respectively.

7. A skylight blind with a motor featuring a clutch structure according to claim 1, characterized in that, The main transmission box (11) is provided with first pulley boxes (4) at both ends, and the first pulleys (13) are respectively rotatably arranged in the first pulley boxes (4). The auxiliary transmission box (12) is provided with second pulley boxes (41) at both ends, and the second pulleys (14) are respectively rotatably arranged in the second pulley boxes (41).

8. A skylight blind with a motor having a clutch structure according to claim 7, characterized in that, The first pulley box (4) has an active transmission box connecting part (43) on one side that is connected to the main transmission box groove (42) inside the main transmission box (11). The first pulley box (4) has a first track insertion part (45) on the adjacent side that is connected to one end of the track positioning groove (44) outside the track body (1). The second pulley box (41) has a secondary drive transmission box connecting part (47) on one side that is connected to the secondary transmission box groove (46) inside the secondary transmission box (12). The second pulley box (41) has a second track insertion part (48) on the adjacent side that is connected to the other end of the track positioning groove (44).

9. A skylight blind with a motor having a clutch structure according to claim 7, characterized in that, The drive motor (16) includes a motor body extending axially within the main transmission housing (11), and the motor shaft of the motor body is connected to a first pulley (13) located in one of the two first pulley housings (4) via a clutch structure.

10. A skylight blind with a motor having a clutch structure according to claim 7, characterized in that, A linkage rod (49) is axially inserted inside the auxiliary transmission box (12). The two ends of the linkage rod (49) are respectively inserted into two second pulley boxes (41) and connected to the second pulley (14).

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