Multi-angle traction device for roller shutter door

Abstract

The utility model relates to the technical field of roller shutter doors, in particular to a multi-angle traction device for a roller shutter door, which comprises a wind-up roller A and a wind-up roller B. The wind-up roller A and the wind-up roller B are vertically arranged, the opposite ends of the wind-up roller A and the wind-up roller B are connected through a linkage mechanism, and a power mechanism is arranged at the end, far away from the wind-up roller B, of the wind-up roller A; and a driving shaft and a guide shaft are arranged above the winding roller A and the winding roller B respectively. The single-motor driving system is matched with the bevel gear linkage mechanism, synchronous operation of the multi-angle winding device is achieved, the problem that a traditional multi-motor driving system is poor in synchronism is thoroughly solved, it is ensured that a complete and continuous fireproof barrier is formed when a roller shutter is unfolded at the corner, and the service life of the roller shutter is prolonged. And by adopting the combined design of universal joint transmission and chain wheel and chain transmission, the energy consumption and maintenance cost of the system are greatly reduced while the transmission precision is ensured, and compared with a traditional multi-motor system, the system has higher reliability and economical efficiency.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter door technology, specifically a multi-angle traction device for roller shutter doors. Background Technology

[0002] In modern architectural design, non-linear spatial structures such as L-shaped and T-shaped spaces are widely used, such as shopping mall corridors and underground parking garage passages. These spatial structures place special requirements on fire-resistant isolation systems, necessitating that fire-resistant roller shutters can fully unfold at corners to form a continuous fire barrier. Traditional fire-resistant roller shutter systems typically use a combination of multiple independently driven roller shutter devices to meet fire isolation needs at different spatial angles.

[0003] In the existing technology, when multiple motors are used to drive roller shutter devices at different angles, there is a problem that the opening actions of each roller shutter are difficult to synchronize precisely. Because multiple motors are controlled independently, there are differences in start-up time, speed and other aspects, which can easily cause misalignment or gaps when the roller shutters open at corners, affecting the fire isolation effect. This asynchronous phenomenon is particularly obvious in emergency situations where a rapid response to fire alarms is required, and may cause weak links in the fire barrier. Utility Model Content

[0004] The purpose of this invention is to provide a multi-angle traction device for roller shutter doors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-angle traction device for roller shutter doors, including

[0007] Two vertically arranged take-up rollers A and B are connected at opposite ends by a linkage mechanism, and a power mechanism is provided at the end of take-up roller A away from take-up roller B.

[0008] A drive shaft and a guide shaft are respectively provided above the take-up roller A and the take-up roller B, and the drive shaft and the guide shaft are connected by the take-up roller C.

[0009] One end of the drive shaft is connected to the power mechanism.

[0010] Preferably, the power mechanism includes a motor, a sprocket A connected to the output shaft of the motor, and a sprocket B fixed to the right end of the take-up roller B. The sprocket A and the sprocket B are connected by a chain drive.

[0011] Preferably, the power mechanism further includes a sprocket C, which is fixedly connected to the right end of the drive shaft, and the sprocket C is synchronously driven with sprocket A and sprocket B through the same chain;

[0012] Preferably, the linkage mechanism includes a driven shaft disposed above the take-up roller C, and the two ends of the driven shaft are respectively connected to the guide shaft and the drive shaft via universal joints;

[0013] Preferably, shaft brackets are provided on both sides of the driven shaft, the right end of the guide shaft is rotatably connected to the left shaft bracket via a bearing, and the left end of the drive shaft is rotatably connected to the right shaft bracket via a bearing.

[0014] Preferably, a transmission housing is provided at one of the opposite ends of the take-up roller A and the take-up roller B. A bevel gear A is fixedly connected to one end of the take-up roller A and the take-up roller B are rotatably mounted inside the transmission housing via bearings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This multi-angle traction device for roller shutters uses a single motor drive system in conjunction with a bevel gear linkage mechanism to achieve synchronous operation of multiple angle winding devices. This completely solves the problem of poor synchronization in traditional multi-motor drive systems, ensuring that the roller shutter forms a complete and continuous fire barrier when it unfolds at a corner. Furthermore, the combination design of universal joint drive and sprocket chain drive significantly reduces system energy consumption and maintenance costs while ensuring transmission accuracy. Compared with traditional multi-motor systems, it has higher reliability and economy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation of bevel gear A according to this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 For the present utility model Figure 1 Enlarged diagram of point B in the middle.

[0021] In the diagram: 1. Take-up roller A; 2. Take-up roller B; 3. Drive shaft; 4. Guide shaft; 5. Take-up roller C; 6. Motor; 7. Sprocket A; 8. Sprocket B; 9. Sprocket C; 10. Driven shaft; 11. Universal joint; 12. Shaft bracket; 13. Transmission housing; 14. Bevel gear A; 15. Bevel gear B. Detailed Implementation

[0022] 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.

[0023] like Figure 1-4 As shown, this utility model provides a technical solution:

[0024] A multi-angle traction device for a roller shutter door includes two vertically arranged take-up rollers A1 and B2. The opposite ends of take-up rollers A1 and B2 are connected by a linkage mechanism. The linkage mechanism includes a driven shaft 10 positioned above take-up roller B2. The two ends of the driven shaft 10 are respectively connected to a guide shaft 4 and a drive shaft 3 via universal joints 11. A power mechanism is located at the end of take-up roller A1 away from take-up roller B2. The power mechanism includes a motor 6, a sprocket A7 connected to the output shaft of the motor 6, and a sprocket B8 fixed to the right end of take-up roller B2. Sprockets A7 and B8 are connected by a chain drive. The power mechanism also includes a sprocket C9, which is fixedly connected to the right end of the drive shaft 3. Sprocket C9 is connected to sprockets A7 and B8. Synchronous transmission via the same chain, one end of drive shaft 3 is connected to the power mechanism. Drive shaft 3 and guide shaft 4 are respectively set above take-up roller A1 and take-up roller B2. Drive shaft 3 and guide shaft 4 are connected by take-up roller C5. Shaft brackets 12 are set on both sides of driven shaft 10. The right end of guide shaft 4 is rotatably connected to the left shaft bracket 12 through a bearing. The left end of drive shaft 3 is rotatably connected to the right shaft bracket 12 through a bearing. Transmission housing 13 is set at the opposite end of take-up roller A1 and take-up roller B2. Bevel gear A14 is fixedly connected to the inside end of take-up roller A1 and take-up roller B2. Bevel gear B15 that meshes with the two bevel gears A14 is rotatably installed inside the lower part of transmission housing 13 through a bearing.

[0025] In this embodiment, the synchronous operation of multiple angle winding devices is achieved by using a single motor drive system in conjunction with a bevel gear linkage mechanism, which completely solves the problem of poor synchronization in traditional multi-motor drive systems. This ensures that the roller shutter forms a complete and continuous fire barrier when it is unfolded at the corner. Furthermore, the combination design of universal joint 11 drive and sprocket chain drive significantly reduces system energy consumption and maintenance costs while ensuring transmission accuracy. Compared with traditional multi-motor systems, it has higher reliability and economy.

[0026] Working principle: When motor 6 starts, its output shaft drives sprocket A7 to rotate, which in turn drives sprockets B8 and C9 to rotate synchronously through the same chain. This allows a single motor to control three sets of transmission mechanisms simultaneously: sprocket B8 directly drives the take-up roller B2 to rotate, while sprocket C9 drives the drive shaft 3 to rotate; drive shaft 3 drives driven shaft 10 to rotate through universal joint 11, which in turn drives the take-up roller C5 to rotate; at the same time, take-up roller B2 drives bevel gear B15 to rotate through bevel gear A14 at its end, and bevel gear B15 then drives bevel gear A14 on take-up roller A1. The three take-up devices rotate synchronously in the same direction, allowing the roller shutter to fully unfold at the corner to form a continuous fire barrier, effectively solving the problem of poor synchronization in traditional multi-motor drive systems.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-angle traction device for roller shutter doors, characterized in that: include Two vertically arranged take-up rollers A (1) and B (2) are connected at opposite ends of take-up roller A (1) and take-up roller B (2) by a linkage mechanism. A power mechanism is provided at the end of take-up roller A (1) away from take-up roller B (2). A drive shaft (3) and a guide shaft (4) are respectively provided above the take-up roller A (1) and the take-up roller B (2), and the drive shaft (3) and the guide shaft (4) are connected by the take-up roller C (5); One end of the drive shaft (3) is connected to the power mechanism.

2. The multi-angle traction device for a roller shutter door according to claim 1, characterized in that: The power mechanism includes a motor (6), a sprocket A (7) connected to the output shaft of the motor (6), and a sprocket B (8) fixed to the right end of the take-up roller B (2). The sprocket A (7) and the sprocket B (8) are connected by a chain drive.

3. The multi-angle traction device for a roller shutter door according to claim 2, characterized in that: The power mechanism also includes a sprocket C (9), which is fixedly connected to the right end of the drive shaft (3). The sprocket C (9) is synchronously driven with sprocket A (7) and sprocket B (8) through the same chain.

4. The multi-angle traction device for a roller shutter door according to claim 1, characterized in that: The linkage mechanism includes a driven shaft (10) disposed above the take-up roller C (5), and the two ends of the driven shaft (10) are respectively connected to the guide shaft (4) and the drive shaft (3) through universal joints (11).

5. A multi-angle traction device for a roller shutter door according to claim 4, characterized in that: A shaft bracket (12) is provided on both sides of the driven shaft (10). The right end of the guide shaft (4) is rotatably connected to the left shaft bracket (12) through a bearing, and the left end of the drive shaft (3) is rotatably connected to the right shaft bracket (12) through a bearing.

6. A multi-angle traction device for a roller shutter door according to claim 1, characterized in that: A transmission housing (13) is provided at one of the opposite ends of the take-up roller A (1) and the take-up roller B (2). Both the take-up roller A (1) and the take-up roller B (2) are fixedly connected to a bevel gear A (14) at one end inside the transmission housing (13). A bevel gear B (15) that meshes with the two bevel gears A (14) is rotatably installed inside the transmission housing (13) via a bearing.

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