Heat preservation and ventilation device of green low-carbon building roof and using method of heat preservation and ventilation device

Abstract

The invention belongs to the field of building heat preservation and ventilation, particularly relates to a heat preservation and ventilation device of a green low-carbon building roof and a use method, and aims to solve the problems that an existing device is difficult to maintain the stability of indoor temperature while ensuring good ventilation, or the ventilation performance is sacrificed when a heat preservation effect is pursued. A well mouth is formed in the top of the roof body, a box body is fixedly arranged in the well mouth, and through holes are formed in the two sides of the box body; the first ventilation mechanism is arranged on the box body and used for ventilation of the building house; the second ventilation mechanism is arranged on the box body and used for driving the first ventilation mechanism to move and conducting ventilation on the interior of the building house at the same time. Through cooperative arrangement of the two ventilation mechanisms, the double functions of ventilation and heat preservation are achieved, the ventilation efficiency of a building is improved, it is guaranteed that the indoor temperature is stable, and a more comfortable and energy-saving living environment is provided for a user.

Description

Technical Field

[0001] The present invention relates to the technical field of building thermal insulation and ventilation, and in particular to a thermal insulation and ventilation device for a green and low-carbon building roof and a use method thereof. Background Art

[0002] Low-carbon construction refers to reducing the use of fossil energy, improving energy efficiency and lowering carbon dioxide emissions throughout the entire life cycle of building materials and equipment manufacturing, construction and building use. Low-carbon construction has gradually become a mainstream trend in the international construction community.

[0003] At present, although the existing thermal insulation and ventilation devices on the roofs of green and low-carbon buildings are committed to achieving the dual functions of thermal insulation and ventilation to a certain extent, they often have problems such as insufficient ventilation efficiency or poor thermal insulation effect. It is difficult to maintain the stability of indoor temperature while ensuring good ventilation, or the ventilation performance is sacrificed in pursuit of thermal insulation effect.

[0004] In view of the above problems, the present invention document proposes a thermal insulation and ventilation device for a green and low-carbon building roof and a method of use to solve the above problems. Summary of the invention

[0005] The present invention provides a thermal insulation and ventilation device for a green and low-carbon building roof and a method for using the device, which solves the shortcomings of the prior art that it is difficult to maintain a stable indoor temperature while ensuring good ventilation, or that ventilation performance is sacrificed in pursuit of thermal insulation effects.

[0006] The present invention provides the following technical solutions:

[0007] The thermal insulation and ventilation device of the green and low-carbon building roof includes:

[0008] A roof body, wherein a wellhead is provided at the top of the roof body, a box body is fixedly arranged inside the wellhead, through holes are provided on both sides of the box body, and ventilation ducts are fixedly connected to the two through holes of the box body;

[0009] The ventilation mechanism 1 is arranged on the box body and is used for ventilation of the building;

[0010] The second ventilation mechanism is arranged on the box body and is used to drive the first ventilation mechanism to move and ventilate the building at the same time.

[0011] In a possible design, the ventilation mechanism includes a plurality of rotating rods rotatably arranged on both sides of the inner wall of the through hole of the box body, a blade is fixedly arranged on the outside of each rotating rod, each of the blades located above is mounted on the blade below it, connecting rods are fixedly arranged on both sides of each blade, the same linkage rod is rotatably arranged on one side of the plurality of connecting rods located on the same side, and a pin rod is fixedly arranged on one side of the connecting rod located at the top.

[0012] In a possible design, the second ventilation mechanism includes two glass windows symmetrically hingedly arranged on the top of the box body by hinges, connecting seats are fixedly arranged on both sides of the two glass windows, a pull rod is rotatably arranged on one side of each connecting seat, a strip hole is opened on one side of each pull rod, and the strip holes on each pull rod are slidably sleeved on the outside of the pin rod on the same side, and the same support plate is fixedly arranged on both sides of the middle inner wall of the box body below the two glass windows, and two fixed frames are symmetrically fixedly arranged on the bottom of the support plate, and a No. 1 seat is fixedly arranged on the top walls of the two fixed frames, and a No. 1 frame is rotatably arranged on the outside of the four No. 1 seats, and an electric push rod is fixedly arranged on one side of the four No. 1 frames, and a No. 2 frame is fixedly arranged on the output ends of the four electric push rods, and two No. 2 seats are symmetrically fixedly arranged on the bottoms of the two glass windows, and the four No. 2 frames are respectively rotatably arranged on the outside of the No. 2 seat on the same side.

[0013] In a possible design, fixed blocks are fixedly provided on the four sides of the inner walls of the two ventilation ducts, dampers are fixedly provided on the bottoms of the four fixed blocks, the piston ends of the four dampers are fixedly provided with the same support frame, and springs are sleeved on the outsides of the four dampers, one end of the spring is fixedly connected to the bottom of the fixed block, and the other end of the spring is fixedly connected to the top of the support frame.

[0014] In a possible design, a rotating shaft is rotatably provided at the top of the support frame, and a fan blade is fixedly provided at the top of the rotating shaft. A motor is fixedly provided at the bottom of the support frame, and one end of the motor output shaft is fixedly connected to the rotating shaft.

[0015] In a possible design, the bottom wall of the roof body is paved with thermal insulation wool, and the top of the thermal insulation wool is paved with an extruded board.

[0016] In a possible design, sealing rings are embedded around the two glass windows.

[0017] In a possible design, each of the blades is fixedly provided with a sealing gasket on one side of another blade.

[0018] A method for using a thermal insulation and ventilation device for a green and low-carbon building roof comprises the following steps:

[0019] S1: First, correctly install the device on the roof of the building, and then connect the power supply to the whole device. When the room needs to be ventilated, start the four electric push rods first, and the output ends of the electric push rods on the same side extend out to push the corresponding glass windows respectively, so that the two glass windows are fan-shaped and open. When the two glass windows are opened, the pull rods on them are driven to move respectively. When the pull rods move, the bar holes on them slide outside the pin rods until they slide to the lowest point of the bar holes. The top connecting rod is pulled and the rest of the connecting rods are pulled through the linkage rod. Then, the connecting rod drives the blades and the rotating rod to rotate and open at the through-holes of the box body, contacting the closure of the through-holes of the box body. At this time, the outside wind will enter the wellhead through the opened glass windows, enter the ventilation duct through the opened blades, and enter the house through the ventilation duct;

[0020] S2: When it is necessary to exhaust the indoor air, the motor is started at this time, and the output shaft of the motor drives the rotating shaft to rotate. The rotating shaft drives the fan blades to rotate at the same time. When the fan blades rotate, the indoor air is transported to the box through the ventilation duct and discharged through the wellhead. When the fan blades rotate, the vibration generated will be transmitted to the support frame. At this time, the damper itself slows down the movement of the fan blades when they are vibrated through internal friction or resistance to consume vibration energy, so as to effectively absorb and slow down the vibration generated by the fan blades when they are working. The spring is sleeved on the outside of the damper, and through its own elastic principle, the vibration is buffered, which can not only enhance the shockproof effect and reduce the vibration generated by the fan blades when they are working, but also reduce the noise generated by the fan blades when they are working;

[0021] S3: When heat preservation is needed, the output ends of the four electric push rods can be started to retract, so that the glass window closes the wellhead. During the closing process of the glass window, multiple blades are also closed at the same time to seal the through holes of the box body, and then the heat preservation cotton and extruded board are used to prevent the loss of indoor temperature.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0023] The beneficial effects of the present invention are:

[0024] The present invention realizes that the electric push rod drives the glass window to open and links the blades to rotate to open the through hole through the arrangement of ventilation mechanism one and ventilation mechanism two, thereby effectively promoting indoor and outdoor air circulation and improving ventilation efficiency. At the same time, when insulation is required, the retraction of the electric push rod can drive the glass window and the blades to close, ensuring good insulation performance of the building.

[0025] The present invention realizes the dual functions of ventilation and heat preservation through the coordinated arrangement of two ventilation mechanisms, which not only enhances the ventilation efficiency of the building, but also ensures the stability of the indoor temperature, providing users with a more comfortable and energy-saving living environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the main structure of a thermal insulation and ventilation device for a green and low-carbon building roof provided by an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the upward structure of a thermal insulation and ventilation device for a green and low-carbon building roof provided by an embodiment of the present invention;

[0028] Figure 3 A schematic cross-sectional view of a roof body of a thermal insulation and ventilation device for a green and low-carbon building roof provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of a structure in which a box and a ventilation duct are separated from a heat preservation and ventilation device for a green and low-carbon building roof provided by an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of a partially enlarged structure of a ventilation duct cutaway view of a thermal insulation ventilation device for a green and low-carbon building roof provided by an embodiment of the present invention;

[0031] Figure 6 A box cross-section and partially enlarged structural schematic diagram of a thermal insulation and ventilation device for a green and low-carbon building roof provided by an embodiment of the present invention.

[0032] Reference numerals:

[0033] 1. Roof body; 2. Wellhead; 3. Box; 4. Ventilation duct; 5. Rotating rod; 6. Blade; 601. Sealing pad; 7. Connecting rod; 8. Linking rod; 9. Pin rod; 10. Glass window; 1001. Sealing ring; 11. Support plate; 12. Fixed frame; 13. No. 1 seat; 14. No. 1 frame; 15. No. 2 seat; 16. No. 2 frame; 17. Electric push rod; 18. Connecting seat; 19. Pull rod; 1901. Strip hole; 20. Fixed block; 21. Support frame; 22. Damper; 23. Spring; 24. Motor; 25. Fan blade; 26. Insulation cotton; 27. Extruded board. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0036] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0037] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0038] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0039] Example 1

[0040] Reference Figure 1-6 , the thermal insulation and ventilation device of the green and low-carbon building roof includes:

[0041] A roof body 1 is provided with a wellhead 2 on the top of the roof body 1, a box body 3 is fixedly provided inside the wellhead 2, through holes are provided on both sides of the box body 3, and ventilation ducts 4 are fixedly connected to the two through holes on the outside of the box body 3. The device also includes a ventilation mechanism 1 and a ventilation mechanism 2. The ventilation mechanism 1 is provided on the box body 3 and is used for ventilating the building, and the ventilation mechanism 2 is provided on the box body 3 and is used to drive the ventilation mechanism 1 to move and ventilate the building at the same time.

[0042] The ventilation mechanism 1 includes a plurality of rotating rods 5 rotatably arranged on both sides of the inner wall of the through hole of the box body 3, a blade 6 is fixedly arranged on the outside of each rotating rod 5, each blade 6 located at the top is mounted on the blade 6 below it, and a sealing gasket 601 is fixedly arranged at the mounting position of each blade 6 to ensure air tightness so that it can fit tightly to prevent air leakage, connecting rods 7 are fixedly arranged on both sides of each blade 6, and the same linkage rod 8 is rotatably arranged on one side of the plurality of connecting rods 7 located on the same side, and a pin rod 9 is fixedly arranged on one side of the top connecting rod 7. When the pin rod 9 slides in the strip hole 1901 of the pull rod 19, it will drive the top connecting rod 7 and the blade 6 connected thereto to rotate, and then drive other blades 6 to rotate synchronously through the linkage rod 8, so that the through hole is released from the closed state.

[0043] The second ventilation mechanism includes two glass windows 10 symmetrically hingedly arranged on the top of the box body 3 through hinges. The same sealing ring 1001 is embedded around the two glass windows 10 to improve the sealing performance and prevent wind and rain from intruding and temperature loss. Connecting seats 18 are fixedly arranged on both sides of the two glass windows 10. A pull rod 19 is rotatably arranged on one side of each connecting seat 18. A strip hole 1901 is opened on one side of each pull rod 19. When the glass window 10 is opened, the pull rod 19 moves accordingly, and the strip hole 1901 slides on the outside of the pin rod 9 until it slides to the lowest point of the strip hole 1901, and the pin rod 9 pulls the connecting rod 7 at the top, thereby driving the movement of the first ventilation mechanism. The middle inner wall of the box body 3 is located on both sides of the two glass windows 10. The same support plate 11 is fixedly arranged at the bottom, and two fixing frames 12 are symmetrically fixedly arranged at the bottom of the support plate 11, and a No. 1 seat 13 is fixedly arranged on the top wall of the two fixing frames 12, and a No. 1 frame 14 is rotatably arranged outside the four No. 1 seats 13, and an electric push rod 17 is fixedly arranged on one side of the four No. 1 frames 14, and a No. 2 frame 16 is fixedly arranged at the output end of the four electric push rods 17, and two No. 2 seats 15 are symmetrically fixedly arranged at the bottom of the two glass windows 10, and the four No. 2 frames 16 are respectively rotatably arranged outside the No. 2 seat 15 on the same side. The glass window 10 can be driven to open and close by retracting the electric push rod 17, and the ventilation mechanism can be driven to move synchronously at the same time, so that the through hole can be opened with the opening of the glass window 10 and closed.

[0044] Example 2

[0045] On the basis of the first embodiment, the second embodiment also includes

[0046] Reference Figure 5 The invention discloses a thermal insulation and ventilation device for the roof of a green and low-carbon building, comprising: fixing blocks 20 are fixedly arranged on four sides of the inner walls of two ventilation ducts 4, dampers 22 are fixedly arranged on the bottoms of the four fixing blocks 20, the piston ends of the four dampers 22 are fixedly arranged on the same support frame 21, springs 23 are sleeved on the outsides of the four dampers 22, one end of the spring 23 is fixedly connected to the bottom of the fixing block 20, and the other end of the spring 23 is fixedly connected to the top of the support frame 21, when the fan blades 25 on the support frame 21 rotate, the vibration generated will be absorbed and slowed down by the damper 22 and the spring 23.

[0047] A rotating shaft is rotatably provided at the top of the support frame 21, and a fan blade 25 is fixedly provided at the top of the rotating shaft. A motor 24 is fixedly provided at the bottom of the support frame 21, and one end of the output shaft of the motor 24 is fixedly connected to the rotating shaft. Driven by the motor 24, the fan blade 25 can rotate to transport the indoor air to the box body 3 through the ventilation duct 4, and then discharged through the wellhead 2.

[0048] In order to improve the thermal insulation performance of the building, the bottom wall of the roof body 1 is paved with thermal insulation cotton 26, and the top of the thermal insulation cotton 26 is paved with an extruded board 27. The two layers of materials work together to effectively reduce the loss of indoor temperature.

[0049] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric push rod 17 and the motor 24 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0050] The working principle and usage process of this technical solution are as follows:

[0051] When starting to use it, first correctly install the device on the roof of the building, then connect the power supply to the whole device. When it is necessary to ventilate the room, first start the four electric push rods 17, and the output ends of the electric push rods 17 on the same side extend out to push the corresponding glass windows 10 respectively, so that the two glass windows 10 are fan-shaped and open. When the two glass windows 10 are opened, they respectively drive the pull rods 19 thereon to move. While the pull rods 19 move, the bar holes 1901 thereon slide outside the pin rods 9 until they slide to the lowest point of the bar holes 1901. The topmost connecting rod 7 is pulled while the other connecting rods 7 are pulled through the linkage rods 8. Then, the connecting rods 7 drive the blades 6 and the rotating rod 5 to rotate and open at the through holes of the box body 3, contacting the closure of the through holes of the box body 3. At this time, the outside wind will enter the wellhead 2 through the opened glass windows 10, enter the ventilation duct 4 through the opened blades 6, and enter the room through the ventilation duct 4.

[0052] When it is necessary to exhaust the indoor air, the motor 24 is started at this time, and the output shaft of the motor 24 drives the rotating shaft to rotate, and the rotating shaft drives the fan blades 25 to rotate at the same time. When the fan blades 25 rotate, the indoor air is transported to the box body 3 through the ventilation duct 4, and then discharged through the wellhead 2. When the fan blades 25 rotate, the vibration generated will be transmitted to the support frame 21. At this time, the damper 22 itself slows down the movement of the fan blades 25 when they are vibrated through internal friction or resistance, thereby effectively absorbing and slowing down the vibration generated by the fan blades 25 when they are working, and the spring 23 is sleeved on the outside of the damper 22. Through its own elastic principle, the vibration is buffered, which can not only enhance the shockproof effect and reduce the vibration generated by the fan blades 25 when they are working, but also reduce the noise generated by the fan blades 25 when they are working.

[0053] When insulation is needed, the output ends of the four electric push rods 17 can be started to retract, so that the glass window 10 closes the wellhead 2. During the closing process of the glass window 10, multiple blades 6 are also closed at the same time to seal the through holes of the box body 3, and then the insulation cotton 26 and the extruded board 27 are used to prevent the loss of indoor temperature.

[0054] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The thermal insulation and ventilation device for the roof of a green and low-carbon building is characterized by: include: A roof body (1), wherein a wellhead (2) is provided at the top of the roof body (1), a box body (3) is fixedly arranged inside the wellhead (2), through holes are provided on both sides of the box body (3), and ventilation ducts (4) are fixedly connected to the two through holes of the box body (3); Ventilation mechanism 1, which is arranged on the box body (3) and is used for ventilation of the building; The second ventilation mechanism is arranged on the box body (3) and is used to drive the first ventilation mechanism to move and ventilate the interior of the building at the same time.

2. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 1 is characterized by: The ventilation mechanism 1 comprises a plurality of rotating rods (5) rotatably arranged on both sides of the inner wall of the through hole of the box body (3), a blade (6) is fixedly arranged on the outside of each rotating rod (5), each blade (6) located at the top is mounted on the blade (6) below it, and connecting rods (7) are fixedly arranged on both sides of each blade (6), a plurality of connecting rods (7) located on the same side are rotatably arranged on one side with the same linkage rod (8), and a pin rod (9) is fixedly arranged on one side of the connecting rod (7) located at the top.

3. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 2 is characterized in that: The second ventilation mechanism comprises two glass windows (10) symmetrically hingedly arranged on the top of the box body (3) through hinges, and connecting seats (18) are fixedly arranged on both sides of the two glass windows (10), and a pull rod (19) is rotatably arranged on one side of each connecting seat (18), and a strip hole (1901) is opened on one side of each pull rod (19), and the strip holes (1901) on each pull rod (19) are slidably sleeved on the outside of the pin rod (9) on the same side, and the same support plate (11) is fixedly arranged on both sides of the inner wall in the middle of the box body (3) below the two glass windows (10). The bottom of the support plate (11) is symmetrically fixed with two fixing frames (12), the top walls of the two fixing frames (12) are fixedly provided with a No. 1 seat (13), the outsides of the four No. 1 seats (13) are rotatably provided with a No. 1 frame (14), one side of the four No. 1 frames (14) is fixedly provided with an electric push rod (17), the output ends of the four electric push rods (17) are fixedly provided with a No. 2 frame (16), the bottoms of the two glass windows (10) are symmetrically fixed with two No. 2 seats (15), and the four No. 2 frames (16) are rotatably provided on the outsides of the No. 2 seats (15) on the same side.

4. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 1 is characterized by: Fixed blocks (20) are fixedly arranged on four sides of the inner walls of the two ventilation ducts (4), dampers (22) are fixedly arranged on the bottoms of the four fixed blocks (20), the piston ends of the four dampers (22) are fixedly arranged on the same support frame (21), and springs (23) are sleeved on the outsides of the four dampers (22), one end of the spring (23) is fixedly connected to the bottom of the fixed block (20), and the other end of the spring (23) is fixedly connected to the top of the support frame (21).

5. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 4 is characterized in that: A rotating shaft is rotatably arranged at the top of the support frame (21), and a fan blade (25) is fixedly arranged at the top of the rotating shaft. A motor (24) is fixedly arranged at the bottom of the support frame (21), and one end of the output shaft of the motor (24) is fixedly connected to the rotating shaft.

6. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 1 is characterized by: The bottom wall of the roof body (1) is paved with thermal insulation cotton (26), and the top of the thermal insulation cotton (26) is paved with an extruded board (27).

7. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 3 is characterized by: Sealing rings (1001) are embedded around the two glass windows (10).

8. The thermal insulation and ventilation device for the green and low-carbon building roof according to claim 2 is characterized by: Each blade (6) is mounted on one side of another blade (6) and is fixedly provided with a sealing gasket (601).

9. A method for using a thermal insulation and ventilation device for a green and low-carbon building roof, characterized in that: A thermal insulation and ventilation device for a green and low-carbon building roof according to any one of claims 1 to 8, comprising the following steps: S1: First, the device is correctly installed on the roof of the building, and then the entire device is connected to the power supply. When the room needs to be ventilated, the four electric push rods (17) are first started, and the output ends of the electric push rods (17) on the same side are extended to push the corresponding glass windows (10) respectively, so that the two glass windows (10) are opened in a fan shape. When the two glass windows (10) are opened, the pull rods (19) on them are driven to move respectively. When the pull rods (19) move, the bar holes (1901) on them slide outside the pin rod (9) until they slide to the bar holes. When (1901) is at the lowest point, the pin rod (9) pulls the connecting rod (7) at the top. When the connecting rod (7) at the top is pulled, the linkage rod (8) pulls the remaining connecting rods (7). The connecting rod (7) then drives the blades (6) and the rotating rod (5) to rotate and open at the through hole of the box body (3), contacting the closure of the through hole of the box body (3). At this time, the outside wind enters the wellhead (2) through the opened glass window (10), enters the ventilation duct (4) through the opened blades (6), and enters the house through the ventilation duct (4); S2: When it is necessary to exhaust the indoor air, the motor (24) is started, and the output shaft of the motor (24) drives the rotating shaft to rotate. The rotating shaft drives the fan blades (25) to rotate at the same time. The fan blades (25) rotate and deliver the indoor air to the box (3) through the ventilation duct (4) and then exhaust the air through the wellhead (2). When the fan blades (25) rotate, the vibration generated will be transmitted to the support frame (21). At this time, the damper (22) itself slows down the movement of the fan blades (25) when they are vibrated through internal friction or resistance, thereby consuming the vibration energy, thereby effectively absorbing and slowing down the vibration generated by the fan blades (25) when they are working. The spring (23) is sleeved on the outside of the damper (22) and buffers the vibration through its own elastic principle, thereby not only enhancing the shockproof effect and reducing the vibration generated by the fan blades (25) when they are working, but also reducing the noise generated by the fan blades (25) when they are working. S3: When heat preservation is required, the output ends of the four electric push rods (17) can be activated to retract, so that the glass window (10) closes the wellhead (2). During the closing process of the glass window (10), the plurality of blades (6) are also closed to seal the through holes of the box body (3), and then the heat insulation cotton (26) and the extruded board (27) are used to prevent the loss of indoor temperature.

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