System window with active ventilation function
By using a stepper motor-controlled lifting threaded rod and gear transmission system, the ventilation holes of the system window are automatically adjusted, solving the problems of insufficient indoor air circulation and rainwater intrusion in winter. This achieves automatic adjustment of indoor air quality and cleaning of window screens, simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-31
AI Technical Summary
In winter, when system windows are kept closed for extended periods, indoor air circulation is affected, leading to a decline in air quality. Furthermore, the frequent manual opening and closing of windows is cumbersome, and rainwater may enter the room.
It adopts a stepper motor-controlled lifting threaded rod and gear transmission system to automatically open and close the ventilation holes, and is equipped with a screen cleaning function. It can achieve active ventilation and rainwater intrusion prevention through remote control.
It achieves automatic adjustment of indoor air quality and prevents rainwater intrusion, reduces the cumbersomeness of manual operation, and ensures the ventilation of the vents and the cleanliness of the screen mesh.
Smart Images

Figure CN224064236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window technology, specifically to a system window with active ventilation. Background Technology
[0002] In architecture, a window is an opening in a wall or roof to allow light or air to enter a room. Modern windows consist of three main parts: the frame, the glass, and the moving parts (hinges, handles, pulleys, etc.). The frame supports the main structure of the window and can be made of wood, metal, ceramic, or plastic. The transparent parts are attached to the frame and can be made of paper, cloth, silk, or glass. The moving parts are primarily made of metal, but areas touched by hands may be covered with insulating materials such as plastic.
[0003] System windows are manufactured according to specific system designs and standards, unifying and assembling various components (such as profiles, hardware, glass, and weatherstripping) to form a complete window and door product. This differs from traditional window and door manufacturing methods, which often involve simply combining profiles, glass, and hardware. System windows come in various types, including casement windows, sliding windows, awning windows, folding windows, double-glazed windows, thermally broken aluminum windows, and smart windows. Each type has its own characteristics and applicable scenarios. Examples include classic casement window series, flush-frame system window series, ultra-narrow frame system window series, and double-inward-opening system window series with integrated screen.
[0004] However, in winter, system windows are generally kept closed for extended periods. If these system windows remain closed for a long time, it will affect indoor air circulation and ultimately affect indoor air quality. If residents open the windows before leaving home and close them upon returning home, the process is cumbersome, and they may forget to open the windows before leaving. Furthermore, if it rains outside while the windows are open, rainwater may enter the room through the open windows. Therefore, this does not meet the current needs. To address this, we propose a system window with active ventilation. Utility Model Content
[0005] The purpose of this invention is to provide a system window with active ventilation to solve the problems mentioned in the background art, such as the fact that system windows are generally kept closed for a long time in winter, which will affect the circulation of indoor air and ultimately affect the quality of indoor air. If the residents open the window before leaving home and close it after returning home, the operation is cumbersome, and they may forget to open the window before leaving home. In addition, if it rains outside while the window is open, rainwater may enter the room through the open window.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a system window with active ventilation, comprising a system window frame, wherein a plurality of ventilation holes are provided on the lower side of the outer surface of the system window frame, and a screen mesh is installed inside each ventilation hole. Below the lowest screen mesh, a stepper motor is fixedly installed inside the outer shell of the system window frame. The output shaft of the stepper motor is connected to a transmission shaft through a coupling. A lifting threaded rod is fixedly connected to the upper end face of the transmission shaft. The outer surface of the lifting threaded rod is connected to a plurality of sealing plates, the same number as the ventilation holes, through a threaded structure, and the positions of the plurality of sealing plates correspond to the positions of the plurality of screen meshes.
[0007] Preferably, a guide rod is provided on both sides of the lifting threaded rod, the guide rod vertically moves through all the sealing plates, and the upper and lower end faces of the guide rod are fixed to the system window frame.
[0008] Preferably, a toothed row is provided in front of the first guide rod from left to right and behind the second guide rod. The toothed row is engaged with a plurality of first gears, the same number as the guide rod, and the first gears are located inside the sealing plate.
[0009] Preferably, the shaft of the first gear is connected to a gear shaft, both ends of which are located inside the outer shell of the sealing plate, and the gear shaft located inside the outer shell of the sealing plate is connected to the sealing plate by a roller bearing.
[0010] Preferably, one side of the first gear is provided with a plurality of second gears that mesh with each other, and the second gear closest to the first gear meshes with the first gear.
[0011] Preferably, the shaft of the second gear is connected to a gear drive shaft, and a cleaning cotton is fixedly sleeved on the outside of the gear drive shaft near the screen mesh.
[0012] Preferably, a protective cover plate is provided on one side of the stepper motor on the outer surface of the system window frame, and the system window frame and the protective cover plate are fixed together by screws;
[0013] A remote control switch for the motor is fixedly installed on one side of the outer surface of the stepper motor.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model can remotely and automatically control a stepper motor or set the daily start time of the stepper motor through a remote motor control switch, thereby opening the ventilation holes for ventilation. The above technical solution can set the daily ventilation time of the house according to the working time of the residents, thereby ensuring the air quality of the house and preventing the indoor air from being affected by the windows being closed for a long time. When it rains outside, the stepper motor can be remotely controlled through a special program to close the windows and prevent rainwater from entering the house.
[0016] 2. When the ventilation hole is opened by the stepper motor, the mesh screen inside the ventilation hole can be automatically cleaned by the transmission of the toothed rack. The above technical solution can prevent the filter screen of the mesh screen from becoming blocked due to prolonged use, thereby ensuring the ventilation of the ventilation hole. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a front view of the internal structure of this utility model;
[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;
[0020] Figure 4 This utility model Figure 2 Top view of the structure at point B in the middle.
[0021] In the diagram: 1. System window frame; 2. Ventilation hole; 3. Screen mesh; 4. Stepper motor; 5. Lifting threaded rod; 6. Sealing plate; 7. Guide rod; 8. Gear rack; 9. First gear; 10. Gear shaft; 11. Second gear; 12. Gear drive shaft; 13. Cleaning cotton; 14. Motor remote control switch; 15. Transmission shaft. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] The stepper motor 5 (model DM542), lifting threaded rod 5 (model M10), and cleaning cotton 13 (model A4812) mentioned in this utility model can be obtained from the market or through private customization.
[0024] Please see Figures 1 to 4This utility model provides an embodiment of a system window with active ventilation, including a system window frame 1. The lower side of the outer surface of the system window frame 1 is provided with multiple ventilation holes 2. Each ventilation hole 2 is equipped with a screen 3. Below the lowest screen 3, a stepper motor 4 is fixedly installed inside the outer shell of the system window frame 1. The output shaft of the stepper motor 4 is connected to a transmission shaft 15 through a coupling. The upper end face of the transmission shaft 15 is fixedly connected to a lifting threaded rod 5. The outer surface of the lifting threaded rod 5 is connected to multiple sealing plates 6, the same number as the ventilation holes 2, through a threaded structure. The positions of the multiple sealing plates 6 correspond to the positions of the multiple screens 3.
[0025] A motor remote control switch 14 is fixedly installed on one side of the outer surface of the stepper motor 4; the motor remote control switch 14 can remotely and automatically control the stepper motor 4 or set the daily automatic start time of the stepper motor 4 to open the ventilation hole 2 for ventilation operation.
[0026] When the stepper motor 4 starts automatically every day, it will drive the lifting threaded rod 5, which is connected to it through the transmission shaft 15, to rotate.
[0027] A guide rod 7 is provided on both sides of the lifting threaded rod 5. The guide rod 7 moves vertically through all the sealing plates 6, and the upper and lower end faces of the guide rod 7 are fixed to the system window frame 1. Since the sealing plates 6 connected to the lifting threaded rod 5 through the threaded structure are moved vertically through the guide rod 7, the sealing plates 6 cannot rotate on their own.
[0028] When the lifting threaded rod 5 rotates, the sealing plate 6, which is threadedly connected to it but cannot rotate on its own, will move up and down accordingly. When it is necessary to open the ventilation hole 2, the sealing plate 6 moves downward. As the sealing plate 6 descends, the ventilation hole 2, which was blocked by the sealing plate 6, will be exposed to the outside. When it is time to close the ventilation hole 2, the lifting threaded rod 5 will drive the indirectly connected lifting threaded rod 5 to rotate in the opposite direction, thereby moving the sealing plate 6 upward to block and seal the ventilation hole 2. Through the above technical solution, the daily ventilation time of the house can be set according to the working time of the residents, so as to ensure the air quality of the house and prevent the indoor air from being affected by the windows being closed for a long time. When it rains outside, the stepper motor 4 can be remotely controlled by a special program to close the door and prevent rainwater from entering the house.
[0029] From left to right, a toothed rack 8 is located in front of the first guide rod 7 and behind the second and third guide rods 7. The toothed rack 8 meshes with multiple first gears 9, the same number as the guide rods 7, and these first gears 9 are located inside the sealing plate 6. On one side of each first gear 9, multiple meshing second gears 11 are located, with the second gear 11 closest to the first gear 9 meshing with it. A gear drive shaft 12 is connected to the axis of each second gear 11, and a cleaning cotton 13 is fixedly fitted onto the outside of the gear drive shaft 12 near the screen mesh 3. As the sealing plate 6 moves up and down, the first gears 9 inside it move up and down with it. When the first gear 9 moves up and down along the gear rack 8 that meshes with it, it will rotate under the transmission of the gear structure. The rotating first gear 9 can drive multiple meshing second gears 11 to rotate together. The rotating second gears 11 can drive the gear drive shaft 12 connected to the shaft of the second gear 11 and the cleaning cotton 13 fixedly sleeved on the outer surface of the gear drive shaft 12 to rotate. The rotating cleaning cotton 13 can clean the outer surface of the screen mesh 3. The above technical solution can prevent the filter screen of the screen mesh 3 from being blocked due to the long service time of the screen mesh 3, thereby ensuring the ventilation of the ventilation hole 2.
[0030] Furthermore, this screen mesh cleaning structure is driven entirely by a gear mechanism, eliminating the need for an additional power source.
[0031] The first gear 9 is connected to a gear shaft 10 at its axis. Both ends of the gear shaft 10 are located inside the housing of the sealing plate 6, and the gear shaft 10 located inside the housing of the sealing plate 6 is connected to the sealing plate 6 by roller bearings. The gear shaft 10 can ensure the stability of the rotating first gear 9.
[0032] A protective cover plate is provided on one side of the stepper motor 4 on the outer surface of the system window frame 1, and the system window frame 1 and the protective cover plate are fixed together by screws; the protective cover plate can protect the stepper motor 4, and when the stepper motor 4 or the motor remote control switch 14 fails, the protective cover plate can be removed for maintenance.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A system window with active ventilation, comprising a system window frame (1), characterized in that: The lower side of the outer surface of the system window frame (1) is provided with a plurality of ventilation holes (2), the inside of each ventilation hole (2) is provided with a screen window net (3), the lower side of the screen window net (3) located at the lowermost side is provided with a stepping motor (4) fixedly installed in the inside of the shell of the system window frame (1), the output shaft of the stepping motor (4) is connected with a transmission rotating shaft (15) through a shaft coupling, the upper end surface of the transmission rotating shaft (15) is fixedly connected with a lifting threaded rod (5), the outer surface of the lifting threaded rod (5) is connected with a plurality of sealing plates (6) through a threaded structure, the number of the sealing plates (6) is same as that of the ventilation holes (2), and the positions of the plurality of sealing plates (6) correspond to the positions of the plurality of screen window nets (3) respectively.
2. A system window with active ventilation according to claim 1, characterized in that: The two sides of the lifting threaded rod (5) are provided with a guide rod (7), the guide rod (7) vertically and movably penetrates all the sealing plates (6), and the upper and lower end surfaces of the guide rod (7) are fixed between the system window frame (1).
3. A system window with active ventilation according to claim 2, characterized in that: The front of the first guide rod (7) from left to right and the rear of the second guide rod (7) are provided with a gear rack (8), the gear rack (8) is engaged with a plurality of first gears (9) with the same number as the guide rods (7), and the first gears (9) are located in the inside of the sealing plates (6).
4. A system window with active ventilation according to claim 3, characterized in that: The shaft center of the first gear (9) is connected with a gear rotating shaft (10), the two ends of the gear rotating shaft (10) are located in the inside of the sealing plate (6) shell, and the gear rotating shaft (10) located in the inside of the sealing plate (6) shell is connected with the sealing plate (6) through a roller bearing.
5. A system window with active ventilation according to claim 3, characterized in that: One side of the first gear (9) is provided with a plurality of second gears (11) engaged with each other, and the second gear (11) closest to the first gear (9) is engaged with the first gear (9).
6. A system window with active ventilation according to claim 5, characterized in that: The shaft center of the second gear (11) is connected with a gear driving rotating shaft (12), and the outer surface of the gear driving rotating shaft (12) is fixedly sleeved with a cleaning cotton (13) close to the position of the screen window net (3).
7. A system window with active ventilation according to claim 1, characterized in that: One side of the stepping motor (4) is provided with a protective cover plate located on the outer surface of the system window frame (1), and the system window frame (1) and the protective cover plate are fixedly connected through screws; One side of the outer surface of the stepping motor (4) is fixedly installed with a motor remote control switch (14).