Fresh air device installed on top edge of outer side of house window

Abstract

The invention discloses a fresh air device installed on the top edge of the outer side of a house window, and belongs to the technical field of house environment optimization equipment. A motor drives a rotating shaft to rotate, the rotating shaft drives a rotating drum and fan blades to rotate, air is discharged from an air outlet of a long-strip-shaped shell, and the multiple end fan blades distributed on one rotating shaft can evenly input fresh air into a room in parallel; the installation position of the structure is hidden, and the influence on the daily life of people is avoided; by arranging the multi-section type rotary drums and arranging the bearing supporting columns between the rotary drums, a long rotary shaft can be supported, and shaking of the rotary shaft is avoided; the separated rotary drums rotate along with the friction force between the rotary shafts to drive the fan blades to rotate, the rotary drums beside the rotary drums can be fixed through the elastic pins on the bearing supporting columns of the rotary drums so as to suspend rotation of the fan blades on the sections, and the fresh air feeding range can be changed according to the number of the suspended sections and the positions of the sections so as to cope with the opening and closing positions of the window.

Description

Technical Field

[0001] This invention belongs to the technical field of building environment optimization equipment, specifically relating to a fresh air device installed on the top edge of the outer side of a building window. Background Technology

[0002] In recent years, global attention has increasingly focused on building energy consumption and environmental protection. With rising demands for building comfort and energy conservation, building design is increasingly emphasizing energy optimization and enhanced comfort to improve energy efficiency and comfort. This can be achieved through adaptive adjustment of building functional equipment, numerical modeling, and real-world building simulation optimization to explore building adaptability and maximize resource utilization, thereby improving energy efficiency. Furthermore, adaptive control of parameters such as temperature, humidity, light, and air quality within and outside the building verifies building comfort and user experience. Adaptive functional equipment further enhances the comfort and convenience of people's lives.

[0003] As people's living environment improves, their requirements for indoor air quality are getting higher and higher. However, many completed houses have a one-way window structure, which cannot form ventilation and makes the indoor air poor. In general, people will install fans indoors, but indoor fans are difficult to achieve indoor-outdoor air circulation, and fresh air is difficult to enter the room. If ventilation devices are installed in the windows, the ventilation devices are not hidden and occupy the space of the windows, which brings inconvenience to people's lives. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a fresh air device installed on the top edge of the outer side of a house window, which has a concealed structure and good ventilation effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention includes a long, rectangular outer shell. A fixing plate for securing it to the top edge of a window is located on the top side of the shell. An air inlet is located on the top side of the shell, and an air outlet is located on the bottom side, both facing inwards. A drive motor is located at one end of the shell. A rotating shaft is located inside the shell, with multiple rotating sections on the shaft. Several fan blades are fixedly arranged around each rotating section. A bearing support is located between each section of the rotating section. The shaft passes through the bearing support, which is fixed to the inside of the shell. Several spring-loaded pins are located on the bearing support. Several pin holes corresponding to the spring-loaded pins are located on the side ends of the rotating sections. An electromagnet is located on the outer end of each spring-loaded pin and is fixed inside the bearing support. When the electromagnet is energized, the spring-loaded pin retracts into the shell; when the electromagnet is de-energized, the spring-loaded pin extends and engages with the pin holes.

[0007] Furthermore, a turntable is fixed on the rotating shaft. An annular groove is provided on the inner side of the rotating cylinder at a position corresponding to the turntable. Ball bearings are provided on both sides of the annular groove, and the ball bearings are supported on both sides of the turntable. A friction ring is also slidably arranged coaxially inside the rotating cylinder. The friction ring is located on the side of the turntable away from the spring pin. A compression spring is also provided between the friction ring and the rotating cylinder. The compression spring supports the friction ring against the side of the turntable. Several extension rods are provided on the outer side of the friction ring. The extension rods slide inside the rotating cylinder. The ends of the extension rods extend to the bottom surface of the pin hole. When the spring pin is inserted into the pin hole, the spring pin moves against the extension rods, causing the friction ring to move away from the turntable.

[0008] Furthermore, it also includes a retaining ring, which is coaxially slidably disposed within the bearing support. Several spring pins are fixedly connected to the outside of the retaining ring. The rotating shaft is provided with several blocks on the side of the section of the bearing support. A traction spring is provided between the blocks and the rotating shaft. When the speed of the rotating shaft is too fast, the blocks move away from the rotating shaft and block the side of the retaining ring.

[0009] Furthermore, the elongated outer shell has a cylindrical cavity inside to accommodate the rotation of the fan blades. An air inlet channel and an air outlet channel are provided on the same side of the cylindrical cavity, with the air outlet channel extending to the air outlet and the air inlet channel extending to the air inlet.

[0010] Furthermore, the air inlet channel extends in an S-shape.

[0011] Furthermore, air guide plates are respectively provided on the upper and lower edges of the air inlet.

[0012] The beneficial effects of this invention are as follows:

[0013] This invention is designed for installation on the top edge of a window. A motor drives a rotating shaft, which in turn rotates a cylindrical fan and its blades. Air is expelled from the outlet of the long, narrow casing. Several fan blades distributed along the shaft evenly and parallelly deliver fresh air into the room, achieving indoor air circulation. This structure is discreetly installed and will not disrupt daily life. Compared to single-point air supply, the parallel air supply is more conducive to top-to-bottom air circulation. The multi-segment rotating shaft, with bearing supports between them, supports the long shaft and prevents vibration. The segmented rotating shafts rotate due to friction, driving the fan blades. The structure also allows for the fixing of adjacent rotating shafts by spring-loaded pins on their respective bearing supports, pausing the rotation of that segment. The range of fresh air delivery can be adjusted based on the number and position of the paused segments to accommodate window opening and closing. This device does not occupy indoor space; a single motor controls the delivery of fresh air and can adjust the range, effectively regulating indoor ventilation.

[0014] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0016] Figure 1 This is a schematic diagram of the installation of the fresh air device according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of the fresh air device according to an embodiment of the present invention;

[0018] Figure 3 This is a distribution diagram of the fan blades in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the rotating drum and bearing support in an embodiment of the present invention;

[0020] Figure 5 This is a cross-sectional view of the rotating drum and bearing support according to an embodiment of the present invention;

[0021] The following are marked in the attached diagram: 1. Long outer shell; 11. Fixing plate; 12. Air inlet; 13. Air outlet; 14. Cylinder cavity; 15. Air inlet channel; 16. Air outlet channel; 17. Air guide plate; 2. Drive motor; 3. Rotating shaft; 31. Turntable; 32. Stop block; 33. Traction spring; 4. Rotating cylinder; 41. Pin hole; 42. Annular groove; 43. Ball bearing; 44. Friction ring; 45. Compression spring; 46. Extension rod; 5. Fan blade; 6. Bearing support; 61. Spring pin; 62. Electromagnet; 63. Retaining ring. Detailed Implementation

[0022] like Figures 1-5 As shown, this invention discloses a fresh air device installed on the top edge of the outer side of a house window, including a long strip shell 1. The length of the long strip shell 1 is set in multiple specifications according to the standard length of the window, such as... Figure 2 As shown, the top side of the elongated outer casing 1 is provided with a fixing plate 11 for fixing to the top edge of the outer side of the window, which is fixed to the top edge of the window by screws. An air inlet 12 is opened on the top side of the elongated outer casing 1, and an air outlet 13 is opened on the bottom side of the elongated outer casing 1, with the air outlet 13 facing inwards. A drive motor 2 is provided at one end of the elongated outer casing 1, and a rotating shaft 3 is provided inside the elongated outer casing 1. Figure 3As shown, the rotating shaft 3 is provided with multiple rotating cylinders 4, and several fan blades 5 are fixedly arranged around the rotating cylinders 4. A bearing support 6 is provided between each rotating cylinder 4, and the rotating shaft 3 passes through the bearing support 6. The bearing support 6 is fixed to the inside of the long outer shell 1, as shown. Figure 4 As shown, the bearing support 6 is provided with three spring pins 61, which are arranged in a ring array on the outside of the rotating shaft 3. The side end of the rotating cylinder 4 is provided with several pin holes 41 corresponding to the spring pins 61. An electromagnet 62 is provided on the outer end of the spring pin 61. The electromagnet 62 is fixed inside the bearing support 6. When the electromagnet 62 is energized, the spring pin 61 is retracted into the long outer shell 1. When the electromagnet 62 is de-energized, the spring pin 61 extends out and is inserted into the pin hole 41.

[0023] This device is installed on the top edge of a window. A motor drives a rotating shaft 3, which in turn rotates a rotating cylinder 4 and fan blades 5. Air is discharged from the air outlet 13 of the long outer casing 1. Several fan blades 5, distributed along a single rotating shaft 3, evenly and parallelly introduce fresh air into the room, achieving indoor air circulation. This structure is discreetly installed and will not disrupt daily life. Compared to single-point air supply, the parallel air supply is more conducive to the circulation of indoor air from top to bottom. The device utilizes a multi-segment rotating cylinder 4, with bearing supports 6 between the cylinders. It can support the longer rotating shaft 3 and prevent the rotating shaft 3 from shaking; the separated rotating cylinders 4 rotate with the friction between the rotating shafts 3, and drive the fan blades to rotate. This structure can also fix the adjacent rotating cylinders 4 through the spring pins 61 on their respective bearing supports 6 to pause the rotation of the fan blades in this section. The range of fresh air supply can be changed according to the number of paused sections and the position of the sections to cope with the opening and closing position of the window. This device does not occupy indoor space, and the indoor fresh air supply can be controlled by a single motor. It can also change the range of fresh air supply and effectively regulate indoor ventilation.

[0024] In further proposals, such as Figure 4 and Figure 5 As shown, a turntable 31 is also fixed on the rotating shaft 3. An annular groove 42 is provided on the inner side of the rotating cylinder 4 at a position corresponding to the turntable 31. Ball bearings 43 are provided on both sides of the annular groove 42, and the ball bearings 43 are supported on both sides of the turntable 31. A friction ring 44 is also slidably provided coaxially inside the rotating cylinder 4. The friction ring 44 is located on the side of the turntable 31 away from the spring pin 61. A pressure spring 45 is also provided between the friction ring 44 and the rotating cylinder 4. The pressure spring 45 supports the friction ring 44 against the side of the turntable 31. Several extension rods 46 are provided on the outer side of the friction ring 44. The extension rods 46 are slidably disposed inside the rotating cylinder 4. The ends of the extension rods 46 extend to the bottom surface of the pin hole 41. When the spring pin 61 is inserted into the pin hole 41, the spring pin 61 moves against the extension rods 46, causing the friction ring 44 to move away from the turntable 31.

[0025] The ball bearing 43 support structure in this design can limit the radial displacement between the rotating drum 4 and the rotating shaft 3. Before the spring pin 61 is inserted into the pin hole 41, the friction ring 44 is in contact with the turntable 31 under the action of the compression spring 45. The rotating drum 4 rotates with the rotating shaft 3 under the action of friction. The annular friction contact can drive the rotating drum 4 to rotate more smoothly. This structure limits the rotation of the rotating drum 4 to be driven by the friction ring 44, which can change other contact positions between the rotating shaft 3 and the rotating drum 4 to smooth contact and reduce friction. After the spring pin 61 is inserted into the pin hole 41, it pushes the extension rod 46 to move, moving the friction ring 44 away from the turntable 31. When the rotating drum 4 stops rotating, the friction between the rotating drum 4 and the rotating shaft 3 is greatly reduced, reducing the energy consumption of the motor.

[0026] In further proposals, such as Figure 4 and Figure 5 As shown, it also includes a retaining ring 63, which is coaxially slidably disposed inside the bearing support 6. Several spring pins 61 are fixedly connected to the outside of the retaining ring 63. The rotating shaft 3 is provided with several blocks 32 on the side of the section of the bearing support 6. A traction spring 33 is provided between the block 32 and the rotating shaft 3. When the speed of the rotating shaft 3 is too fast, the block 32 moves away from the rotating shaft 3 and blocks the side of the retaining ring 63.

[0027] This structure further fixes the structure after the spring pin 61 is inserted into the pin hole 41. When the rotation speed is slow, the spring force of the spring pin 61 itself can push the spring pin 61 into the pin hole 41 and will not retract. When the rotation speed is too fast, the stop block 32 overcomes the traction spring 33 with the centrifugal force and is stuck in the position of the retaining ring 63 to avoid the spring pin 61 from retracting due to the excessive rotation speed.

[0028] In further proposals, such as Figure 2 As shown, the elongated outer shell 1 has a cylindrical cavity 14 inside to accommodate the rotation of the fan blades 5. An air inlet channel 15 and an air outlet channel 16 are located on the same side of the cylindrical cavity 14, one above the other. The air outlet channel 16 extends to the air outlet 13, and the air inlet channel 15 extends to the air inlet 12. Figure 2 The cavity mechanism allows the fan blades to effectively draw in air from the air inlet channel 15 and deliver it out from the air outlet channel 16, thus achieving the function of air delivery.

[0029] In further proposals, such as Figure 2 As shown, the air inlet channel 15 extends in an S-shape. This structure can prevent rainwater from entering and affecting the internal structure of the device. In addition, structures such as the air inlet filter 12 can be installed to block outdoor rainwater, dust and other structures.

[0030] In further proposals, such as Figure 2As shown, the upper and lower edges of the air inlet 12 are respectively equipped with air guide plates 17. This structure is not frequently adjusted, so the air guide plates 17 can be manually adjusted to avoid the introduction of electric equipment. By adjusting the angle of the air guide plates 17, the air delivery angle can be precisely controlled to obtain the air circulation state that best suits the indoor structure.

[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A fresh air device installed on the top edge of the outer side of a building window, characterized in that: The device includes a long outer shell (1), with a fixing plate (11) on the top side for fixing to the top edge of the outer side of the window. An air inlet (12) is opened on the top side of the long outer shell (1), and an air outlet (13) is opened on the bottom side of the long outer shell (1), with the air outlet (13) facing the interior of the building. A drive motor (2) is provided at one end of the long outer shell (1). A rotating shaft (3) is provided inside the long outer shell (1), with multiple rotating cylinders (4) on the rotating shaft (3). Several fan blades (5) are fixedly arranged around the rotating cylinders (4), and bearing supports (6) are provided between each section of the rotating cylinder (4). The rotating shaft (3) passes through the bearing support (6), the bearing support (6) is fixed inside the long outer shell (1), the bearing support (6) is provided with a number of spring pins (61), the side end of the rotating cylinder (4) is provided with a number of pin holes (41) corresponding to the spring pins (61), the outer end of the spring pin (61) is provided with an electromagnet (62), the electromagnet (62) is fixed inside the bearing support (6), when the electromagnet (62) is energized, the spring pin (61) is retracted into the long outer shell (1), when the electromagnet (62) is de-energized, the spring pin (61) extends out and is inserted into the pin hole (41).

2. The fresh air device installed on the top edge of the outer side of a building window according to claim 1, characterized in that: A turntable (31) is also fixed on the rotating shaft (3). An annular groove (42) is provided on the inner side of the rotating cylinder (4) at a position corresponding to the turntable (31). Ball bearings (43) are provided on both sides of the annular groove (42), and the ball bearings (43) are supported on both sides of the turntable (31). A friction ring (44) is also slidably provided coaxially inside the rotating cylinder (4). The friction ring (44) is located on the side of the turntable (31) away from the spring pin (61). A retaining device is also provided between the friction ring (44) and the rotating cylinder (4). A compression spring (45) supports the friction ring (44) against the side of the turntable (31). Several extension rods (46) are provided on the outside of the friction ring (44). The extension rods (46) slide inside the rotating cylinder (4). The ends of the extension rods (46) extend to the bottom surface of the pin hole (41). When the spring pin (61) is inserted into the pin hole (41), the spring pin (61) moves against the extension rods (46), causing the friction ring (44) to move away from the turntable (31).

3. The fresh air device installed on the top edge of the outer side of a house window according to claim 1, characterized in that: It also includes a retaining ring (63), which is coaxially slidably disposed inside the bearing support (6). Several spring pins (61) are fixedly connected to the outside of the retaining ring (63). The rotating shaft (3) is provided with several blocks (32) on the side of the section of the bearing support (6). A traction spring (33) is provided between the block (32) and the rotating shaft (3). When the speed of the rotating shaft (3) is too fast, the block (32) moves away from the rotating shaft (3) and blocks the side of the retaining ring (63).

4. The fresh air device installed on the top edge of the outer side of a building window according to claim 1, characterized in that: The elongated outer shell (1) has a cylindrical cavity (14) inside to accommodate the rotation of the fan blades (5). An air inlet channel (15) and an air outlet channel (16) are provided on the same side of the cylindrical cavity (14). The air outlet channel (16) extends to the air outlet (13), and the air inlet channel (15) extends to the air inlet (12).

5. The fresh air device installed on the top edge of the outer side of a building window according to claim 4, characterized in that: The air inlet channel (15) extends in an S-shape.

6. The fresh air device installed on the top edge of the outer side of a house window according to claim 1, characterized in that: The upper and lower edges of the air inlet (12) are respectively equipped with air guide plates (17).

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