Manual and electric opening device for natural ventilation smoke exhaust window
By designing limiting structures for the transmission and protection components, the problem of low transmission efficiency of the smoke exhaust window in the event of a power outage was solved, enabling efficient and safe opening of the smoke exhaust window and improving its efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG PROVINCE INST OF ARCHITECTURAL DESIGN & RES
- Filing Date
- 2025-02-12
- Publication Date
- 2026-04-28
AI Technical Summary
Existing smoke exhaust windows have low transmission efficiency in the event of a fire and power outage, and the hand-cranked handles require a lot of physical strength, affecting opening efficiency and safety.
A manual and electric opening device for a natural ventilation smoke exhaust window was designed. Through the cooperation of transmission components and protective components, and by using the movement trajectory limit of the collar, sleeve and connecting rod, the smoke exhaust window can be opened manually, and the opening and closing of the smoke exhaust window can be controlled by electric components.
It improves the opening speed and efficiency of smoke exhaust windows in the event of a power outage, reduces manual labor intensity, and ensures safety and reliability.
Smart Images

Figure CN224173923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke exhaust window technology, and in particular to a manual and electric opening device for a natural ventilation smoke exhaust window. Background Technology
[0002] The manual and electric opening device for natural ventilation smoke exhaust windows is commonly used in various buildings, such as shopping malls, office buildings, and underground parking lots. Under normal circumstances, it can achieve natural ventilation and regulate indoor air and temperature. In the event of a fire, the electric mode can quickly open the smoke exhaust window to ventilate smoke and remove smoke; the manual mode serves as a backup to ensure effective smoke extraction and protect personnel safety in the event of power outages or other emergencies.
[0003] In practice, existing smoke exhaust window opening devices, used in conjunction with electric push rods and fire alarm devices, can meet basic smoke exhaust needs, but the following problems still exist:
[0004] In emergency situations involving fire and power outage, common smoke exhaust windows typically rely on an external hand crank to open. Since hand cranking depends on basic gears and lead screws, it inevitably leads to low transmission efficiency, which in turn affects the window's opening efficiency. At the same time, hand cranking requires a lot of physical strength, which greatly reduces safety. Therefore, this application provides a manual-electric opening device for natural ventilation smoke exhaust windows to meet the needs. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a manual / electric opening device for natural ventilation and smoke extraction windows.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a manual and electric opening device for a natural ventilation smoke exhaust window, comprising a mounting frame and a driving component disposed on the side of the mounting frame;
[0007] A transmission assembly is located on the side of the mounting frame away from the driving component. The transmission assembly includes a mounting plate disposed in the inner cavity of the mounting frame. A filling groove is provided on the side of the mounting plate. A limit frame is fixedly connected to the inner cavity of the filling groove. A collar is provided in the inner cavity of the limit frame. A sleeve is provided at the bottom of the collar.
[0008] A protective component is located at the bottom of the sleeve. The protective component includes a telescopic rod disposed at the bottom of the sleeve, and a snap-fit plate is fixedly connected to the top of the telescopic rod.
[0009] Furthermore, a slider is fixedly connected to the side of the collar, and a second sliding groove is provided in the inner cavity of the limiting frame. One end of the slider extends into the inner cavity of the second sliding groove, and the slider is slidably connected to the inner cavity of the second sliding groove.
[0010] The technical effect of adopting the above technical solution is that the movement trajectory of the collar can be limited by the cooperation of the slider and the second slide groove.
[0011] Furthermore, the inner wall of the collar is provided with a first groove, the top of the sleeve is slidably connected to the inner cavity of the first groove, and the outer surface of the sleeve is provided with a first sliding groove.
[0012] The technical effect of adopting the above technical solution is that by setting the first groove, the movement trajectory of the sleeve can be limited, thus preventing the position of the sleeve from shifting.
[0013] Furthermore, a connecting rod is slidably connected to the inner cavity of the first groove, and a handle is fixedly connected to the side of the connecting rod.
[0014] The technical effect of adopting the above technical solution is that by setting a connecting rod, the handle can be supported to a certain extent, and by setting a handle, it can be convenient for staff to use.
[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0016] The bottom of the telescopic rod is connected to the drive component via a screw. A smoke exhaust window is installed on the side of the mounting frame to vent indoor smoke. The drive component, also installed on the side of the mounting frame, allows for electric control of the smoke exhaust window's opening and closing. In the event of a fire and power outage, a mounting plate and a limit bracket on the side of the mounting frame away from the drive component work together to fix the position of the collar. This collar provides a manual opening method for the smoke exhaust window during power outages. The sleeve and connecting rod work together to convert the mechanical stress generated by downward movement into the rotational force of the telescopic rod, enabling manual opening of the smoke exhaust window. This significantly improves opening speed and avoids the need for multiple manual rotations. A locking plate fixed to the top of the telescopic rod engages the telescopic rod with the sleeve, ensuring stable transmission. Attached Figure Description
[0017] Figure 1 A three-dimensional structural diagram of a manual / electric opening device for a natural ventilation and smoke exhaust window provided by this utility model;
[0018] Figure 2 A schematic diagram of the internal cross-sectional structure of a manual / electric opening device for a natural ventilation smoke exhaust window provided by this utility model;
[0019] Figure 3 A cross-sectional structural schematic diagram of the transmission component of a manual / electric opening device for a natural ventilation and smoke exhaust window provided by this utility model;
[0020] Figure 4 This is a cross-sectional structural diagram of a protective device for a manual / electric opening mechanism of a natural ventilation and smoke exhaust window provided by this utility model.
[0021] Legend:
[0022] 1. Mounting bracket; 11. Drive components;
[0023] 2. Transmission assembly; 21. Mounting plate; 22. Limiting bracket; 23. Collar; 24. Slider; 25. Sleeve; 26. First groove; 27. First slide groove; 28. Connecting rod; 29. Handle; 210. Second slide groove; 211. Filling groove;
[0024] 3. Protective components; 31. Telescopic rod; 32. Clip plate; 33. Second groove; 34. Protective shell; 35. Baffle; 36. Fixing block; 37. Spring piece; 38. Third groove. Detailed Implementation
[0025] 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.
[0026] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a manual and electric opening device for a natural ventilation smoke exhaust window, a mounting frame 1, and a driving component 11 disposed on the side of the mounting frame 1;
[0027] The transmission assembly 2 is located on the side of the mounting frame 1 away from the drive component 11. The transmission assembly 2 includes a mounting plate 21 disposed in the inner cavity of the mounting frame 1. A filling groove 211 is provided on the side of the mounting plate 21. A limit frame 22 is fixedly connected to the inner cavity of the filling groove 211. A collar 23 is provided in the inner cavity of the limit frame 22. A sleeve 25 is provided at the bottom of the collar 23.
[0028] The protective component 3 is located at the bottom of the sleeve 25. The protective component 3 includes a telescopic rod 31 at the bottom of the sleeve 25, a snap-fit plate 32 fixedly connected to the top of the telescopic rod 31, a slider 24 fixedly connected to the side of the collar 23, a second groove 210 formed in the inner cavity of the limiting frame 22, one end of the slider 24 extending into the inner cavity of the second groove 210, and the slider 24 slidingly connected to the inner cavity of the second groove 210. A first groove 26 is formed on the inner wall of the collar 23, and the top of the sleeve 25 slidingly connects to the inner cavity of the first groove 26. A first groove 27 is formed on the outer surface of the sleeve 25, and a connecting rod 28 is slidably connected to the inner cavity of the first groove 27. A handle 29 is fixedly connected to the side of the connecting rod 28. In the event of a fire and power outage, the baffle 35 is manually pulled outwards, and then the snap-fit plate on the side of the telescopic rod 31 is removed, thereby causing the collar 23 to move the sleeve 25 downwards. During the movement... In this design, the movement trajectory of the collar 23 is limited by the cooperation of the second sliding groove 210 and the slider 24 on the inner wall of the limiting frame 22, preventing the collar 23 from shifting and causing damage. At the same time, by filling the inner cavity of the filling groove 211 with rubber, the service life of the mounting plate 21 can be extended. When the collar 23 moves to a certain position, the handle 29 can be manually pulled down to make the connecting rod 28 move along the inner cavity of the first sliding groove 27, thereby driving the sleeve 25 to move clockwise along the inner cavity of the first groove 26. When the sleeve 25 moves clockwise, the rotational force can be transmitted to the telescopic rod 31 by the snap-fit plate 32 fixedly connected to the top of the telescopic rod 31, thereby driving the smoke exhaust window to open, effectively improving the opening efficiency of the smoke exhaust window, reducing the intensity of manual labor, and greatly improving the utilization efficiency of the smoke exhaust window.
[0029] Furthermore, such as Figure 3 and Figure 4As shown: A protective shell 34 is provided at the bottom of the telescopic rod 31. A second groove 33 is provided on the side of the protective shell 34. A baffle 35 is rotatably connected to the side of the protective shell 34 near the telescopic rod 31. A third groove 38 is provided in the inner cavity of the protective shell 34. By providing a transmission component connected to the driving component 11 at the bottom of the telescopic rod 31, the smoke exhaust window can be opened by the telescopic rod 31. By providing the protective shell 34, a certain degree of protection can be provided for the telescopic rod 31. The second groove 33 on the side of the protective shell 34 can provide protection for the connecting rod. The movement trajectory of the connecting rod 28 is limited. By setting the baffle 35, it is possible to easily inspect and replace the transmission component 2 and the protective component 3. Through the cooperation of the third groove 38 and the fixing block 36, the baffle 35 can be quickly opened and closed. By setting the support on the side of the telescopic rod 31, the position of the telescopic rod 31 and the collar 23 can be fixed to ensure that the collar 23 is normally in the upper part of the mounting plate 21, so as to avoid the lower part from colliding and causing damage to the collar 23, which would affect the normal use of the manual switch.
[0030] During use, because the fixing block 36 and the spring piece 37 are made of elastic materials, material fatigue will inevitably occur. Figure 4 As shown: In this solution, a spring piece 37 is fixedly connected to one end of the baffle 35, and a fixing block 36 is fixedly connected to the side of the spring piece 37. By covering the outer surface of the fixing block 36 with a ceramic fiber mesh, the outer surface of the fixing block 36 can be protected to a certain extent, thus extending the service life of the fixing block 36.
[0031] like Figure 1-4 As shown:
[0032] In use: By manually activating the drive component 11, the smoke exhaust window located on the side of the mounting bracket 1 can be automatically controlled to open and close. In the event of a power outage, by manually pulling open the baffle 35, the fixing block 36 and the spring piece 37 deform during the movement of the baffle 35, thus disengaging from the inner cavity of the third groove 38. After pulling open the baffle 35, by removing the support member located on the side of the telescopic rod 31, the collar 23 can be pulled downwards, which in turn drives the handle 29 downwards via the sleeve 25. When the collar 23 moves to a certain position, the worker holds the handle 29 and pulls it downward, which causes the connecting rod 28 to move along the inner cavity of the first groove 27. This causes the sleeve 25 to move clockwise along the inner cavity of the first groove 26. When the sleeve 25 moves clockwise, the rotational force is transmitted to the inner cavity of the drive component 11 through the cooperation of the snap plate 32 and the telescopic rod 31, thereby enabling the manual opening of the smoke exhaust window, effectively improving work efficiency and reducing labor intensity.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A manual / electric opening device for a natural ventilation smoke exhaust window, characterized in that, include: Mounting bracket (1) and driving member (11) disposed on the side of mounting bracket (1); A transmission assembly (2) is placed on the side of the mounting frame (1) away from the drive member (11). The transmission assembly (2) includes a mounting plate (21) disposed in the inner cavity of the mounting frame (1). A filling groove (211) is provided on the side of the mounting plate (21). A limiting frame (22) is fixedly connected to the inner cavity of the filling groove (211). A collar (23) is provided in the inner cavity of the limiting frame (22). A sleeve (25) is provided at the bottom of the collar (23). The protective component (3) is placed at the bottom of the sleeve (25). The protective component (3) includes a telescopic rod (31) disposed at the bottom of the sleeve (25). A snap-fit plate (32) is fixedly connected to the top of the telescopic rod (31).
2. The manual / electric opening device for a natural ventilation smoke exhaust window according to claim 1, characterized in that, The collar (23) is fixedly connected to a slider (24) on its side. The inner cavity of the limiting frame (22) is provided with a second sliding groove (210). One end of the slider (24) extends into the inner cavity of the second sliding groove (210). The slider (24) is slidably connected to the inner cavity of the second sliding groove (210).
3. The manual / electric opening device for a natural ventilation smoke exhaust window according to claim 1, characterized in that, The inner wall of the collar (23) is provided with a first groove (26), the top of the sleeve (25) is slidably connected to the inner cavity of the first groove (26), and the outer surface of the sleeve (25) is provided with a first sliding groove (27).
4. The manual / electric opening device for a natural ventilation smoke exhaust window according to claim 3, characterized in that, A connecting rod (28) is slidably connected to the inner cavity of the first groove (27), and a handle (29) is fixedly connected to the side of the connecting rod (28).
5. The manual / electric opening device for a natural ventilation smoke exhaust window according to claim 1, characterized in that, The bottom of the telescopic rod (31) is provided with a protective shell (34), and a second groove (33) is provided on the side of the protective shell (34). A baffle (35) is rotatably connected to the side of the protective shell (34) near the telescopic rod (31).
6. The manual / electric opening device for a natural ventilation smoke exhaust window according to claim 5, characterized in that, One end of the baffle (35) is fixedly connected to a spring piece (37), and a fixing block (36) is fixedly connected to the side of the spring piece (37).
7. A manual / electric opening device for a natural ventilation smoke exhaust window according to claim 5, characterized in that, The inner cavity of the protective shell (34) is provided with a third groove (38).