Building energy-saving ventilation structure
By using foldable exhaust fan blades and a flexible horn tube structure, the problem of uneven ventilation in traditional ventilation structures under strong winds and different wind directions is solved, achieving efficient and multi-wind-direction adaptable building energy-saving ventilation.
Patent Information
- Application Number
- CN202520550656.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional building ventilation structures suffer from uneven ventilation because the fan blades can block airflow when the external wind speed is high, and the air inlet cannot be adjusted according to the wind direction.
It adopts a foldable exhaust fan blade and flexible horn tube structure, combined with motor drive and electric push rod, to realize automatic retraction of fan blades and wind direction adjustment of horn tube, ensuring efficient ventilation under different wind directions.
It improves the air volume and ventilation efficiency during natural ventilation, avoids fan blade obstruction, adapts to different wind directions, ensures effective ventilation in the building, and has rain protection and air filtration functions.
Smart Images

Figure CN223869388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building ventilation technology, specifically to a building energy-saving ventilation structure. Background Technology
[0002] Building ventilation is divided into natural ventilation and mechanical ventilation. It refers to the ventilation method in which the polluted air inside the building is directly or after purification is discharged to the outside, and then fresh air is introduced to keep the indoor air environment in line with hygiene standards. Ventilation structures are needed to ventilate the interior of the building.
[0003] The "A Building Energy-Saving Ventilation Structure" disclosed in publication number "CN219103309U" includes a filter box. The front of the filter box is fitted with a cover plate by bolts. The top and bottom of the filter box are fitted with locking strips by bolts at equal intervals. The four right-hand locking strips of the eight locking strips are fitted with the same filter plate 1, and the four left-hand locking strips of the eight locking strips are fitted with the same filter plate 2. An air inlet is opened on one side of the filter box, and mounting plates are welded to the top and bottom of the other side of the filter box.
[0004] Traditional ventilation systems mostly rely on fan blades for ventilation within buildings. However, since the fan blades are fixed structures, when the system stops, they can obstruct a significant amount of airflow, thus affecting the ventilation quality when the system relies on natural air intake. Furthermore, they lack the ability to adjust the air intake based on wind direction, resulting in varying ventilation effects under different wind conditions. To address these issues, we have designed an energy-saving ventilation structure for buildings. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an energy-saving ventilation structure for buildings, which solves the problems of fan blades blocking airflow during natural ventilation when the external wind speed is high, and the lack of adjustment of the air inlet of the structure according to external risks, resulting in a small air intake.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an energy-saving ventilation structure for buildings, comprising a ventilation mechanism and an air inlet mechanism assembled at one end of the ventilation mechanism;
[0007] The ventilation mechanism includes a ventilation pipe, a ventilation motor is fixedly installed inside the ventilation pipe via a motor frame, a fan blade seat is fixedly installed at the output end of the ventilation motor, three sets of exhaust fan blades are rotatably installed on the outer side of the fan blade seat via a shaft, a return torsion spring is sleeved on the outside of the shaft and connected to the fan blade seat and the exhaust fan blades respectively, and an outer ring plate is fixedly installed on the front of the ventilation pipe.
[0008] The air intake mechanism includes a mounting ring, a rotating ring connected to an outer ring plate is fixedly mounted on the back of the mounting ring, a flexible tube is fixedly mounted on the front of the mounting ring, a horn tube is fixedly mounted on the front of the flexible tube, and electric push rods with output ends movably connected to the horn tubes are movably mounted on both sides of the front of the mounting ring.
[0009] Preferably, an adjusting motor is fixedly installed on the rear side of the top of the outer ring plate, the output end of the adjusting motor passes through the outer ring plate and is fixedly installed with a drive gear, and a gear ring that cooperates with the drive gear is fixedly installed on the front side of the outer side of the rotating ring.
[0010] Preferably, an inner ring plate is fixedly installed on the back of the ventilation duct, and a protective mesh plate is fixedly installed inside the inner ring plate.
[0011] Preferably, a filter screen is fixedly installed inside the horn tube.
[0012] Preferably, the bottom and output end of the electric push rod are both fixedly equipped with ball heads, and the ball heads are movably connected to the mounting ring and the horn tube, respectively.
[0013] Preferably, a control box is fixedly installed on the top of the ventilation duct, and limit plates are fixedly installed on both sides of the ventilation duct.
[0014] This utility model provides an energy-saving ventilation structure for buildings. Compared with the prior art, it has the following advantages:
[0015] (1) The building’s energy-saving ventilation structure, through the cooperation between the fan blade seat, the exhaust fan blade and the return torsion spring, can ventilate the interior of the building by exhaust. When the structure stops, the exhaust fan blade retracts into the fan blade seat under the elastic force of the return torsion spring, thereby reducing the space occupied by the exhaust fan blade when not in use, avoiding the situation where the fan blade blocks the wind that naturally enters the structure, and ensuring that the structure maintains effective ventilation in the building under natural air intake.
[0016] (2) By combining the horn tube and the flexible tube, the air intake area of the structure is increased, and the air intake of the structure can be adjusted according to the external wind direction, ensuring that the structure maintains high-efficiency ventilation in the building under different wind directions. 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 schematic diagram of the back structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the horn tube adjustment structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the rotating ring structure of this utility model.
[0021] Figure 5 This is a schematic diagram of the ventilation motor installation structure of this utility model.
[0022] Figure 6 This is a schematic diagram of the fan blade repositioning structure of this utility model.
[0023] In the diagram: 1. Ventilation mechanism; 101. Ventilation duct; 102. Inner ring plate; 103. Outer ring plate; 104. Limiting plate; 105. Control box; 106. Protective mesh plate; 2. Air intake mechanism; 201. Mounting ring; 202. Flexible tube; 203. Horn tube; 204. Electric push rod; 205. Rotating ring; 206. Gear ring; 207. Filter plate; 3. Adjusting motor; 301. Drive gear; 4. Ventilation motor; 401. Fan blade holder; 402. Exhaust fan blade; 403. Return torsion spring; 404. Motor frame. Detailed Implementation
[0024] 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.
[0025] Example 1
[0026] Please see Figure 5-6 As shown, this embodiment proposes an energy-saving ventilation structure for buildings, including a ventilation mechanism 1 and an air inlet mechanism 2 assembled at one end of the ventilation mechanism 1. The ventilation mechanism 1 includes a ventilation pipe 101. A ventilation motor 4 is fixedly installed inside the ventilation pipe 101 via a motor frame 404. A fan blade seat 401 is fixedly installed at the output end of the ventilation motor 4. Three sets of exhaust fan blades 402 are rotatably installed on the outer side of the inner side of the fan blade seat 401 via a shaft. A reset torsion spring 403 is sleeved on the outer side of the shaft and is respectively connected to the fan blade seat 401 and the exhaust fan blades 402. An outer ring plate 103 is fixedly installed on the front side of the ventilation pipe 101.
[0027] In use, the ventilation duct 101 is installed on the exterior wall of the building, and the outer ring plate 103 abuts against the exterior wall of the building, thereby limiting the installation of the ventilation duct 101. The ventilation motor 4 is installed inside the ventilation duct 101 through the motor bracket 404. The ventilation motor 4 is connected to an external power source through wires, so that the ventilation motor 4 can drive the fan blade seat 401 to rotate. When the fan blade seat 401 rotates, the three sets of exhaust fan blades 402 will unfold under the action of centrifugal force and rotate with the fan blade seat 401. The rotation of the exhaust fan blades 402 can draw in the outside air, thereby realizing the function of ventilation inside the building. When the ventilation motor 4 stops rotating, the three sets of exhaust fan blades 402 are folded inside the fan blade seat 401 by the return torsion spring 403. The folding of the exhaust fan blades 402 increases the throughput of natural wind and ventilation duct 101, and avoids the exhaust fan blades 402 from obstructing the structure and affecting the natural ventilation inside the building, ensuring that the structure can effectively ventilate the inside of the building even when natural wind is passing through.
[0028] Example 2
[0029] Based on Example 1, such as Figure 2-4 As shown, the air intake mechanism 2 includes a mounting ring 201. A rotating ring 205 connected to an outer ring plate 103 is fixedly mounted on the back of the mounting ring 201. A flexible tube 202 is fixedly mounted on the front of the mounting ring 201. A horn tube 203 is fixedly mounted on the front of the flexible tube 202. Electric push rods 204 with output ends movably connected to the horn tube 203 are movably mounted on both sides of the front of the mounting ring 201.
[0030] In use, the mounting ring 201 is rotatably connected to the outer ring plate 103 via the rotating ring 205. The horn tube 203 is mounted on the front of the mounting ring 201 via the flexible tube 202. The horn tube 203 increases the air intake area of the structure, thereby increasing the air intake volume. Furthermore, the angle of the horn tube 203 during air intake can be adjusted via two sets of electric push rods 204. During use, the orientation of the horn tube 203 can be adjusted according to the external wind direction, thereby reducing the angle between the horn tube 203 and the wind direction, increasing the amount of natural wind entering the structure, and ensuring the structure's stability. It can efficiently ventilate the interior of the building under different wind directions, and the rotating ring 205 can rotate the horn tube 203. When it rains outside, by adjusting the angle and rotation of the horn tube 203, the opening of the horn tube 203 can be turned towards the ground, thereby preventing rainwater from entering the building through the horn tube 203 and the ventilation duct 101. The flexible tube 202 can be partially folded and bent with the adjustment of the horn tube 203, so that the airflow entering through the horn tube 203 can be guided into the ventilation duct 101 through the flexible tube 202.
[0031] like Figure 3-4As shown, an adjusting motor 3 is fixedly installed on the rear side of the top of the outer ring plate 103. The output end of the adjusting motor 3 passes through the outer ring plate 103 and is fixedly installed with a drive gear 301. A gear ring 206 that works with the drive gear 301 is fixedly installed on the front side of the outer side of the rotating ring 205.
[0032] In use, the drive gear 301 meshes with the gear ring 206, thereby driving the gear ring 206 to rotate by adjusting the motor 3 and the drive gear 301. The rotation of the horn tube 203 can be adjusted electrically.
[0033] like Figure 2 As shown, an inner ring plate 102 is fixedly installed on the back of the ventilation pipe 101, and a protective mesh plate 106 is fixedly installed inside the inner ring plate 102.
[0034] During use, the inner ring plate 102 can fix the back of the ventilation pipe 101 during installation, and the protective mesh plate 106 can protect the back of the ventilation pipe 101, preventing foreign objects from entering the ventilation pipe 101 and causing blockage and damage, thus ensuring the stability of the ventilation structure during operation.
[0035] like Figure 3 As shown, a filter plate 207 is fixedly installed inside the horn tube 203.
[0036] When in use, the filter screen 207 can be filtered by the airflow inside the horn tube 203, preventing airborne particles from entering the building and causing pollution, thus improving the safety of the structure during building ventilation.
[0037] like Figure 2-4 As shown, ball heads are fixedly installed at the bottom and output end of the electric actuator 204, and the ball heads are movably connected to the mounting ring 201 and the horn tube 203, respectively.
[0038] In use, the ball head can be used to movably connect the electric actuator 204 to the mounting ring 201, and can also be used to movably connect the output end of the electric actuator 204 to the horn tube 203. Thus, the ball head allows the electric actuator 204 to tilt in accordance with the state of the horn tube 203.
[0039] like Figure 2-3 As shown, a control box 105 is fixedly installed on the top of the ventilation pipe 101, and limit plates 104 are fixedly installed on both sides of the ventilation pipe 101.
[0040] In use, the control box 105 is equipped with a control system for the ventilation structure, which can be used to control the operation of the structure. The limit plate 104 can limit the ventilation pipe 101 when it is installed in the building wall, thus preventing the ventilation pipe 101 from rotating in the wall.
[0041] Working principle: The ventilation duct 101 is installed inside the exterior wall of the building. The ventilation motor 4 drives the fan blade seat 401 and the exhaust fan blade 402 to rotate, which can perform ventilation operations in the building through active exhaust. When the structure stops, the reset torsion spring 403 can fold the exhaust fan blade 402 back into the fan blade seat 401, reducing the space occupied by the exhaust fan blade 402 when not in use, ensuring the smooth flow of air when the structure is naturally ventilated, and avoiding the situation where the exhaust fan blade 402 obstructs the natural ventilation of the structure. The electric push rod 204 can monitor the angle of the horn tube 203 during operation. By adjusting the angle of the horn tube 203, it is ensured that the structure can maintain high-efficiency ventilation under different wind directions.
[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A building energy-saving ventilation structure, characterized in that: Includes a ventilation mechanism and an air intake mechanism assembled at one end of the ventilation mechanism; The ventilation mechanism includes a ventilation pipe, a ventilation motor is fixedly installed inside the ventilation pipe via a motor frame, a fan blade seat is fixedly installed at the output end of the ventilation motor, three sets of exhaust fan blades are rotatably installed on the outer side of the fan blade seat via a shaft, a return torsion spring is sleeved on the outside of the shaft and connected to the fan blade seat and the exhaust fan blades respectively, and an outer ring plate is fixedly installed on the front of the ventilation pipe. The air intake mechanism includes a mounting ring, a rotating ring connected to an outer ring plate is fixedly mounted on the back of the mounting ring, a flexible tube is fixedly mounted on the front of the mounting ring, a horn tube is fixedly mounted on the front of the flexible tube, and electric push rods with output ends movably connected to the horn tubes are movably mounted on both sides of the front of the mounting ring.
2. The building energy-saving ventilation structure according to claim 1, characterized in that: An adjusting motor is fixedly installed on the rear side of the top of the outer ring plate. The output end of the adjusting motor passes through the outer ring plate and is fixedly installed with a drive gear. A gear ring that cooperates with the drive gear is fixedly installed on the front side of the outer side of the rotating ring.
3. The building energy-saving ventilation structure according to claim 2, characterized in that: An internal ring plate is fixedly installed on the back of the ventilation duct, and a protective mesh plate is fixedly installed inside the internal ring plate.
4. The building energy-saving ventilation structure according to claim 2, characterized in that: A filter screen is fixedly installed inside the horn tube.
5. The building energy-saving ventilation structure according to claim 1, characterized in that: The bottom and output end of the electric push rod are both fixedly equipped with ball heads, and the ball heads are movably connected to the mounting ring and the horn tube, respectively.
6. The building energy-saving ventilation structure according to claim 1, characterized in that: A control box is fixedly installed on the top of the ventilation duct, and limit plates are fixedly installed on both sides of the ventilation duct.
Citation Information
Patent Citations
Building energy-saving ventilation structure
CN219103309U