Large-angle opening structure of single skylight
Through the push rod motor and mechanical coordination structure, the 140° opening of a single-fan smoke exhaust sunroof is achieved, which solves the problem of insufficient opening angle, improves stability and smoke exhaust efficiency, extends the motor life, and reduces production costs.
Patent Information
- Application Number
- CN202422411913.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing single-fan smoke exhaust sunroof is insufficient, resulting in low smoke exhaust efficiency and poor stability, especially when the motor is easily damaged when the large span sunroof.
The push rod motor and mechanical mating structure is adopted. Through the design of the limit groove and pin shaft, the movable fan rotates about the rotation axis, achieving a maximum opening angle of 140°, and increasing stability through the coordination between mechanical parts and the motor.
A smoke exhaust sunroof is realized with a large angle, which improves the smoke exhaust efficiency, enhances the stability of the sunroof, extends the service life of the motor, and reduces production costs.
Smart Images
Figure CN223119367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire protection. Background Art
[0002] The smoke exhaust skylight is installed on the roof of a house. For an ordinary single - fan smoke exhaust skylight, its effective opening angle is one of the important factors affecting the smoke exhaust efficiency. For a single - fan smoke exhaust skylight, if the opening angle is not enough, in some cases, the positive wind pressure will not only affect the smoke exhaust effect, but may even cause the backflow of smoke.
[0003] The existing cylinder - driven single - fan smoke exhaust skylight has good stability, but due to its insufficient opening angle, when the skylight is fully opened, the smoke exhaust of the skylight is still affected negatively by the ambient wind. The existing single - motor - driven single - fan smoke exhaust skylight, although some products can meet the opening angle requirements of the skylight, has problems with its stability. Especially when encountering a large - span single - fan smoke exhaust skylight, due to the large weight of the skylight, there are high requirements for the strength of the motor, and the motor itself is relatively easy to be damaged. The existing chain - driven single - fan smoke exhaust skylight also has an insufficient opening angle, so the ambient wind will affect the smoke exhaust efficiency of the skylight. Summary of the Utility Model
[0004] In order to solve the technical problem of the insufficient opening angle of the single - fan smoke exhaust skylight in the prior art, the utility model provides a large - angle opening structure for a single - fan skylight.
[0005] The technical solution adopted by the utility model to achieve the above - mentioned purpose is as follows:
[0006] A large - angle opening structure for a single - fan skylight, a movable fan 2 is rotatably installed on a base 1, a fixed bracket 3 is installed on the base 1, a rotating bracket 5 is installed on the fixed bracket 3 through a rotating shaft 4, a first hoop 6 is rotatably installed on the rotating bracket 5 through a rotating pin shaft 7, a push - rod motor 8 is installed on the rotating bracket 5 through the first hoop 6, the telescopic end of the push - rod motor 8 is rotatably connected to the movable fan 2, a limit pin shaft 10 is installed on the push - rod motor 8 through a second hoop 9, a first limit groove 11 is provided on the rotating bracket 5 with the center of the rotating pin shaft 7 as the center of the circle and the distance between the rotating pin shaft 7 and the limit pin shaft 10 as the radius, the first limit groove 11 is installed in cooperation with the limit pin shaft 10, a third limit groove 12 is provided on the fixed bracket 3 with the center of the rotating shaft 4 as the center of the circle and the distance between the rotating shaft 4 and the first limit groove 11 as the radius, a second limit groove 13 is provided at the upper end of the third limit groove 12 on the fixed bracket 3, and the distance between the second limit groove 13 and the rotating shaft 4 is equal to the distance between the rotating shaft 4 and the first limit groove 11.
[0007] A support frame 16 is installed on the base 1, and one end of the movable fan 2 is rotatably installed on the support frame 16.
[0008] The telescopic end of the push rod motor 8 is rotatably connected to the movable fan 2 through a first connecting pin shaft 14.
[0009] One end of the movable fan 2 is rotatably connected to the base 1 through a second connecting pin shaft 15.
[0010] The advantages of the present utility model compared with the prior art are as follows:
[0011] When the movable fan needs to be opened, first, the push rod motor extends, pushing the movable fan to rotate around the second connecting pin shaft. At the same time, the push rod motor and the rotating bracket rotate around the rotating shaft as the center of the circle. When the rotating bracket rotates to the maximum angle, the push rod motor continues to extend, and the push rod motor rotates around the rotating pin shaft, further causing the movable fan to rotate, so that the opening angle of the movable fan reaches the maximum. Description of the Drawings
[0012] Figure 1 is the front view of a large-angle opening structure of a single-fan skylight of the present utility model.
[0013] Figure 2 is a large-angle opening structure of a single-fan skylight of the present utility model Figure 1 The partial enlarged view of part A.
[0014] Figure 3 is the first-stage state diagram of the push rod motor of a large-angle opening structure of a single-fan skylight of the present utility model.
[0015] Figure 4 is the first-stage state diagram of a large-angle opening structure of a single-fan skylight of the present utility model.
[0016] Figure 5 is the second-stage state diagram of the push rod motor of a large-angle opening structure of a single-fan skylight of the present utility model.
[0017] Figure 6 is the second-stage state diagram of a large-angle opening structure of a single-fan skylight of the present utility model.
[0018] In the figure: 1. Base; 2. Movable fan; 3. Fixed bracket; 4. Rotating shaft; 5. Rotating bracket; 6. First hoop; 7. Rotating pin shaft; 8. Push rod motor; 9. Second hoop; 10. Limit pin shaft; 11. First limit groove; 12. Third limit groove; 13. Second limit groove; 14. First connecting pin shaft; 15. Second connecting pin shaft; 16. Support frame. Detailed Embodiment
[0019] A large-angle opening structure of a single-fan skylight provided by the present utility model, as Figure 1-2As shown in the figure, a support frame 16 is installed on the base 1. One end of the movable fan 2 is rotatably installed on the support frame 16 through a second connecting pin shaft 15. A fixed bracket 3 is installed on the base 1. A rotating bracket 5 is installed on the fixed bracket 3 through a rotating shaft 4. A first hoop 6 is rotatably installed on the rotating bracket 5 through a rotating pin shaft 7. A push rod motor 8 is installed on the rotating bracket 5 through the first hoop 6. The telescopic end of the push rod motor 8 is rotatably connected to the movable fan 2. A limit pin shaft 10 is installed on the push rod motor 8 through a second hoop 9. On the rotating bracket 5, a first limit groove 11 is provided with the center of the rotating pin shaft 7 as the center and the distance between the rotating pin shaft 7 and the limit pin shaft 10 as the radius. The first limit groove 11 is fitted with the limit pin shaft 10. On the fixed bracket 3, a third limit groove 12 is provided with the center of the rotating shaft 4 as the center and the distance between the rotating shaft 4 and the first limit groove 11 as the radius. On the fixed bracket 3, a second limit groove 13 is provided at the upper end of the third limit groove 12. The distance between the second limit groove 13 and the rotating shaft 4 is equal to the distance between the rotating shaft 4 and the first limit groove 11.
[0020] Working principle: As Figure 2-4 shown, the stage from the closed state to the open state of the movable fan 2 is the first stage. First, the push rod motor 8 extends to push the movable fan 2 to open. The movable fan 2 rotates around the second connecting pin shaft 15, and then drives the push rod motor 8 to rotate around the rotating shaft 4. The limit pin shaft 10 of the push rod motor 8 is stuck in the first limit groove 11 of the rotating bracket 5. During the rotation of the push rod motor 8, it drives the rotating bracket 5 to rotate synchronously. When the limit pin shaft 10 is stuck in the second limit groove 13 of the fixed bracket 3, the first stage ends. As Figure 5-6 shown, the push rod motor 8 continues to extend and rotates around the rotating pin shaft 7, so that the opening angle of the movable fan 2 reaches the maximum.
[0021] In this solution, a mechanical cooperation structure is added between the motor and the base of the single - fan smoke exhaust skylight. It can not only achieve an effective opening angle of the skylight up to 140°, but also has good stability. The mechanical cooperation structure operates in cooperation with the motor, increasing the opening angle of the skylight while also enhancing the overall stability of the skylight.
[0022] The transmission device structure of the mutual cooperation between mechanical parts and the motor replaces the traditional transmission device structure with only a motor. By restricting the running track of the motor, the effective opening angle of the single - fan skylight is increased. During the entire operation process, the motor reduces the burden during operation through the transmission of force, thereby increasing the service life of the motor. This solution can enable a motor with a short stroke to achieve the same effect as a traditional motor with a long stroke, saving production costs.
[0023] The present utility model is described by way of examples. Those skilled in the art will appreciate that various changes or equivalent substitutions can be made to these features and examples without departing from the spirit and scope of the present utility model. Additionally, under the teaching of the present utility model, these features and examples can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific examples disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present utility model.
Claims
1. A large-angle opening structure for a single-pane skylight, characterized in that A movable fan (2) is rotatably mounted on a base (1). A fixed bracket (3) is mounted on the base (1). A rotating bracket (5) is mounted on the fixed bracket (3) through a rotating shaft (4). A first hoop (6) is rotatably mounted on the rotating bracket (5) through a rotating pin shaft (7). A push rod motor (8) is mounted on the rotating bracket (5) through the first hoop (6). The telescopic end of the push rod motor (8) is rotatably connected to the movable fan (2). A limit pin shaft (10) is mounted on the push rod motor (8) through a second hoop (9). A first limit groove (11) is provided on the rotating bracket (5) with the center of the rotating pin shaft (7) as the center of the circle and the distance between the rotating pin shaft (7) and the limit pin shaft (10) as the radius. The first limit groove (11) is fitted and mounted with the limit pin shaft (10). A third limit groove (12) is provided on the fixed bracket (3) with the center of the rotating shaft (4) as the center of the circle and the distance between the rotating shaft (4) and the first limit groove (11) as the radius. A second limit groove (13) is provided at the upper end of the third limit groove (12) on the fixed bracket (3). The distance between the second limit groove (13) and the rotating shaft (4) is equal to the distance between the rotating shaft (4) and the first limit groove (11).
2. The large-angle opening structure of a single-pane skylight according to claim 1, characterized in that, A support frame (16) is mounted on the base (1). One end of the movable fan (2) is rotatably mounted on the support frame (16).
3. The large-angle opening structure of a single-pane skylight according to claim 1, characterized in that, The telescopic end of the push rod motor (8) is rotatably connected to the movable fan (2) through a first connecting pin shaft (14).
4. A large-angle opening structure for a single-pane skylight according to claim 1, characterized in that, One end of the movable fan (2) is rotatably connected to the base (1) through a second connecting pin shaft (15).