A ventilation structure for energy conservation and emission reduction in green buildings

By adopting a green building energy-saving and emission-reducing ventilation structure in the building ventilation system, and using pure wind power drive and eccentric movement of the dynamic and fixed spiral blades, the problems of high energy consumption and low ventilation efficiency of traditional ventilation systems are solved, and the ventilation effect with high efficiency, environmental protection and strong adaptability is achieved.

CN119778809BActive Publication Date: 2025-05-30MEIZHOU TAIAN SUPERVISION CO LTD
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Patent Information

Application Number
CN202510278091.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-05-30
Estimated Expiration
2045-03-10

AI Technical Summary

Technical Problem

The existing building ventilation systems have high energy consumption, low ventilation efficiency, complex structure and difficult maintenance, as well as pollution problems, and it is difficult to meet the requirements of energy conservation, environmental protection, efficient ventilation, stable operation and simple maintenance.

Method used

The green building energy-saving and emission-reducing ventilation structure is adopted, and through innovative structural design and pure wind-driven methods, including ventilation filter boxes, driving components, ventilation ducts and removable filter replacement cores, the relative eccentric movement of the dynamic rotary blade and the fixed rotary blade is used to achieve airflow compression and pressurization, combining vortex effect and eccentric movement, improving ventilation efficiency and system adaptability.

Benefits of technology

It achieves energy conservation and environmental protection, high ventilation efficiency, simple maintenance, and adapts to different climate and environmental conditions, provides stable ventilation effects, reduces energy consumption and pollution, and conforms to the design concept of green buildings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a ventilation structure for energy conservation and emission reduction in green buildings, which includes a ventilation filter box, a driving component, and a ventilation duct. This ventilation structure is driven by pure wind power. By utilizing the wind power generated by the airflow on the building surface, it drives the moving components of the system, thereby achieving efficient air circulation and pressurization. The driving component adopts a bladeless vertical frame structure. Through the vortex effect generated by the airflow, it drives the vertical frame to vibrate and converts it into eccentric motion, driving the dynamic rotating blade and the static rotating blade to perform relative eccentric motion, thereby realizing the compression and transportation of the airflow. This structure avoids the influence of the filtering device on the ventilation efficiency by compressing the intake air and improves the transportation efficiency of the airflow. The present invention can be widely applied to green buildings and energy conservation and emission reduction projects, with significant energy-saving and environmental protection benefits, and can effectively improve the indoor air quality and reduce the building operation cost.
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Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving buildings, and particularly to an energy-saving and emission-reducing ventilation structure for green buildings. Background Art

[0002] With the increasing global requirements for environmental protection and energy conservation, the construction industry is facing growing challenges. Traditional building ventilation systems mostly rely on electric drive, using mechanical fans, air conditioners and other equipment. Although these equipment can provide sufficient air circulation, they usually cause high energy consumption, air pollutant emissions, and have problems such as difficult maintenance and short service life. Therefore, how to reduce energy consumption and improve ventilation efficiency while ensuring indoor air quality has become an important issue in green building design.

[0003] Common building ventilation equipment on the market currently includes mechanical ventilation systems, natural ventilation systems, and hybrid ventilation systems. Among them, although the mechanical ventilation system can achieve ventilation efficiently, it relies on electric energy supply, increasing energy consumption and operating costs. The natural ventilation system uses the natural air flow of the building to achieve ventilation. Although it is environmentally friendly and energy-saving, it is greatly restricted by climate and environment, and it is often difficult to ensure stable ventilation effects under different weather conditions.

[0004] In this context, new technologies such as turbine wind power drive and eccentric motion have gradually attracted the attention of the building ventilation field. These technologies can effectively utilize external natural wind power and achieve low-energy consumption and high-efficiency ventilation effects through the optimization of structural design. For example, methods such as using the vortex effect generated by air flow on the rod-shaped surface, generating high-frequency vibration through wind power drive, and using bladeless design to enhance wind power conversion have achieved preliminary application and research progress in some fields.

[0005] However, the existing building ventilation technologies still have the following problems:

[0006] High energy consumption: Traditional mechanical ventilation systems need to rely on electric drive, resulting in large energy consumption and increasing the operating costs of buildings.

[0007] Low ventilation efficiency: Some natural ventilation systems are restricted by environmental and climatic conditions and cannot operate efficiently in different seasons or climatic conditions.

[0008] Complex structure and difficult maintenance: The existing wind power drive systems have relatively complex structures, and it is difficult to maintain and replace components, resulting in poor long-term stability and economy of the systems.

[0009] Pollution problem: Some existing ventilation systems are prone to dust accumulation during long-term operation, affecting air quality, and it is often difficult to achieve self-cleaning.

[0010] Therefore, how to design a building ventilation system that can simultaneously meet the requirements of energy saving, environmental protection, efficient ventilation, stable operation and easy maintenance has become a technical problem that needs to be solved urgently. Summary of the invention

[0011] The present invention provides a green building energy-saving and emission-reduction ventilation structure, which aims to achieve energy-saving and environmental protection, high ventilation efficiency and easy maintenance of building ventilation solutions through innovative structural design and pure wind drive mode. The ventilation structure of the present invention includes a ventilation filter box, a driving component, a ventilation duct and a filter refill that can be detachably installed on the inner side of the ventilation filter box.

[0012] The technical solution of the present invention mainly includes the following aspects:

[0013] The ventilation filter box is one of the core components of the present invention, and a first pump box is provided on its upper surface, and a second pump box is provided on its lower surface. The first pump box and the second pump box are connected to the external airflow channel through the upper cover and the base respectively, so as to realize the input and output of airflow. An air inlet cap is provided on the top of the upper cover for external airflow input, and an exhaust hole is provided on the bottom surface of the base. The exhaust hole is connected to the ventilation duct to transport the compressed airflow into the interior of the building. Through the relative eccentric movement of the movable rotor and the fixed rotor, the present invention realizes the compression and pressurization of the airflow, thereby improving the air circulation effect.

[0014] The driving components include a stand, a vortex sleeve, a swing shaft and a plane shaft seat. The driving components are installed outside the building, such as on the wall or roof. The natural wind force of the airflow generates a vortex effect, which drives the stand to swing rapidly, thereby causing the swing shaft to move eccentrically. The swing shaft is connected to the shaft rod, driving the moving rotor blades and the fixed rotor blades to move relative to each other. This movement is transmitted to the blades inside the ventilation filter box through the eccentric structure of the shaft rod, completing the airflow compression and transportation.

[0015] The moving vanes and the fixed vanes are the key components of the present invention, and the two rotate relative to each other through the eccentric movement of the shaft. Both the moving vanes and the fixed vanes are planar spirals and are located in the same plane. The moving vanes form the working principle of the scroll compressor through the relative movement with the fixed vanes to pressurize the airflow. The cooperation between the moving vanes and the fixed vanes can effectively improve the compression efficiency of the airflow and enhance the overall airflow delivery capacity of the system.

[0016] The ventilation duct is used in conjunction with the filter element to guide the airflow into the building. The filter element is detachable and can effectively filter pollutants in the air to ensure the quality of the air entering the room. The ventilation duct is connected to the exhaust hole on the base to transport the compressed airflow into the building to achieve indoor air circulation and ventilation.

[0017] The beneficial effects achieved by the present invention are:

[0018] 1. Energy saving and environmental protection, pure wind power drive

[0019] The present invention uses pure wind power to drive a natural wind power drive system generated by the airflow on the building surface, avoiding the consumption of energy such as electricity required by traditional ventilation equipment, thereby achieving energy-saving effects. This wind-driven method not only conforms to the design concept of green buildings, but also reduces energy consumption and the burden on the environment, meeting the requirements of sustainable development.

[0020] 2. Compress the intake air to increase the intake air pressure

[0021] The present invention realizes the compression of the airflow through the relative eccentric movement of the moving rotary blade and the fixed rotary blade. This process not only increases the intake air pressure, but also avoids the negative impact on the ventilation efficiency caused by structures such as the filtering device. In traditional ventilation systems, the filter may generate a certain resistance to the airflow, affecting the ventilation efficiency, while the design of the present invention can efficiently compress the airflow and ensure the smooth passage of the airflow through the system, improving the overall ventilation efficiency.

[0022] 3. Bladeless structure, using the eddy current effect to enhance efficiency

[0023] The present invention adopts a bladeless eddy current sleeve structure, using the eddy current effect generated by the airflow on the rod-shaped surface to generate high-frequency vibration, driving the eddy current sleeve to perform efficient eccentric swing. The application of this eddy current effect enables the full utilization of wind power and converts it into mechanical energy to drive the system, thereby driving the movement of the moving rotary blade. This design not only improves the energy conversion efficiency, but also effectively improves the airflow transportation efficiency. In this way, the present invention can better utilize the external natural airflow and improve the compression and transportation effect of the airflow through eccentric movement.

[0024] 4. Strong adaptability, widely applicable to different environments

[0025] The ventilation structure of the present invention can be customized according to the different requirements of the building and the airflow conditions, and is applicable to various building types and environments. Whether in areas with strong wind or areas with weak traditional wind, it can work effectively to ensure the ventilation effect inside the building. This system has strong adaptability and can provide stable ventilation effects according to different climate and environmental conditions.

[0026] Through the above beneficial effects, the present invention not only realizes the energy-saving and emission-reduction goals of the green building ventilation system, but also improves the ventilation efficiency and air circulation effect, and has broad application prospects. Brief Description of the Drawings

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the ventilation filter box and the filter replacement core structure of an embodiment of the present invention;

[0029] Figure 3 Schematic diagram of the internal structure of the eddy current sleeve according to an embodiment of the present invention;

[0030] Figure 4 Schematic diagram of the installation structure of the swing shaft and the planar shaft seat according to an embodiment of the present invention;

[0031] Figure 5 Schematic diagram of the cross-sectional structure of the ventilation filter box according to an embodiment of the present invention;

[0032] Figure 6 Schematic diagram of the shaft rod group and the moving rotating blade structure according to an embodiment of the present invention;

[0033] Figure 7 Schematic diagram of the installation structure of the moving rotating blade and the fixed rotating blade according to an embodiment of the present invention;

[0034] Figure 8 Schematic diagram of the swing shaft and the planar shaft seat structure according to an embodiment of the present invention.

[0035] Reference numerals:

[0036] 100, ventilation filter box; 110, first pump box; 120, second pump box; 130, shaft rod group; 140, moving rotating blade; 150, fixed rotating blade; 111, upper cover; 112, air inlet cap; 121, lower cover; 131, first crankshaft; 132, second crankshaft; 133, sliding disk; 141, sliding ring sleeve;

[0037] 200, wind power drive assembly; 210, vertical frame; 220, eddy current sleeve; 230, swing shaft; 240, planar shaft seat; 211, spring member; 212, cable; 221, connecting rod; 231, output shaft;

[0038] 300, ventilation duct; 400, filter core. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0040] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0041] Below in conjunction with the attached Figures 1 - 8 Describe a green building energy-saving and emission-reduction ventilation structure provided by some embodiments of the present invention.

[0042] Embodiment 1: Basic installation and structural combination

[0043] The specific implementation manner of the energy-saving ventilation structure for green buildings of the present invention is as follows:

[0044] Installation of the driving component: The wind power driving assembly 200 is installed on the outdoor wall surface or the roof surface of the building. The outer shape structure of the wind power driving assembly 200 is a vortex sleeve 220 made of a lightweight composite fiber cylinder structure, which is made of carbon fiber or exfoliated fiber to ensure sufficient strength while being lightweight. The wind power driving assembly 200 adopts the design of the vortex sleeve 220. The vortex sleeve 220 is sleeved on the outer periphery of the vertical frame 210. When the wind flows on the surface of the vortex sleeve 220, the air flow vortex reacts on the surface of the vortex sleeve 220 and drives the vortex sleeve 220 to swing rapidly.

[0045] Air flow guiding and compression system: The wind power driving assembly 200 drives the swing shaft 230 to swing eccentrically through the vortex action. The swing shaft 230 is connected to the shaft rod group 130 through the support and guidance of the planar shaft seat 240, driving the shaft rod group 130 to generate eccentric swing. The shaft rod group 130 passes through the first pump box 110 and the second pump box 120, and drives the moving rotary blade 140 and the fixed rotary blade 150 to generate relative eccentric movement through the first crank shaft 131 and the second crank shaft 132. Both the moving rotary blade 140 and the fixed rotary blade 150 are in a planar spiral shape and are located in the same plane. The rotation of the moving rotary blade 140 drives the compression and pressurization process of the air flow.

[0046] Air flow path and the function of the ventilation filter box 100: The air flow enters the first pump box 110 through the air inlet cap 112 on the upper cover 111. After passing through the inside of the first pump box 110, the air flow is filtered by the filter core 400 and then flows into the second pump box 120. Inside the second pump box 120, the moving rotary blade 140 and the fixed rotary blade 150 pressurize the air flow through relative eccentric movement, and finally introduce the compressed air flow into the building interior through the exhaust hole through the ventilation duct 300. The lower cover 121 is connected to the ventilation duct 300 to achieve indoor ventilation and air exchange.

[0047] 2. Embodiment 2: Optimization design of the blade and the eccentric mechanism

[0048] In another embodiment, the design of the blade structure and the eccentric mechanism is optimized:

[0049] Moving rotary blade and fixed rotary blade:

[0050] Both the moving rotary blade 140 and the fixed rotary blade 150 are designed in a planar spiral shape. Their outer perimeters are coaxially arranged with the upper cover 111 and the lower cover 121 through the slip ring sleeve 141, ensuring that the air flow can be effectively compressed under their action. Through the eccentric movement of the shaft rod group 130, the relative movement between the moving rotary blade 140 and the fixed rotary blade 150 prompts the air flow to be compressed in the space between the two blades, thereby achieving the pressurization effect. Especially the relative movement between the outer perimeter of the moving rotary blade 140 and the slip ring sleeve 141 ensures the high efficiency and stability of the pressurization process.

[0051] Eccentric shaft structure:

[0052] Through the eccentric movement driven by the shaft rod group 130, it not only drives the relative movement between the moving rotary blade 140 and the fixed rotary blade 150, but also reduces friction and energy loss while ensuring the eccentric effect through the cooperation of the shaft rod with the sliding disc 133 and other structural components.

[0053] Vortex effect and wind power conversion:

[0054] The wind power driving assembly 200 utilizes the wind power generated by the external air flow. It guides the air flow to form a vortex through the vortex sleeve 220, driving the vortex sleeve 220 to swing around the outer perimeter of the vertical frame 210, and then converting it into an eccentric movement to drive the movement of other components. This structural design ensures that the wind power can be effectively utilized to the greatest extent, and optimizes the working efficiency of the system through the lever principle and the eccentric structure.

[0055] 3. Embodiment Three: Adapt to different building environments

[0056] According to the different requirements and environments of the building, the green building energy-saving and emission-reduction ventilation structure of the present invention can provide a variety of adaptable configurations:

[0057] Flexibility in size and installation method: The ventilation system of the present invention can be customized according to the size of the building and the air flow environment. The sizes of the ventilation filter box 100, the wind power driving assembly 200, and the ventilation duct 300 can be adjusted according to actual needs. The system can be installed at different positions such as the roof, wall, or window of the building to adapt to different building types.

[0058] Environmental adaptability: This ventilation structure is applicable to a variety of climate conditions. Especially in areas with strong winds, it can effectively utilize the wind power driving system to ensure the ventilation effect while saving energy and reducing emissions.

[0059] Summary

[0060] Through the above different embodiments, the green building energy-saving and emission-reduction ventilation structure of the present invention has successfully achieved efficient ventilation inside the building by combining wind power driving, eccentric movement, and blade pressurization technologies. The flexible installation method, self-cleaning design, and convenient maintenance function of the system give it significant advantages in energy saving and emission reduction, air purification, and building ventilation.

[0061] Working principle and usage process of the present invention:

[0062] Working principle:

[0063] The present invention relates to a ventilation structure for energy conservation and emission reduction in green buildings, which mainly consists of a wind-driven component 200, a ventilation filter box 100 and a connected ventilation duct 300. Its working principle is based on wind driving and an eccentric swing structure, and realizes ventilation and air exchange inside the building through conversion into air flow compression and transportation.

[0064] The wind-driven component 200 is installed on the outdoor wall or roof surface of the building, making use of the natural effect of air flow on the building surface. When the air flow passes through the wind-driven component 200, the air flow flows on the surface of the columnar eddy current sleeve 220, and eddy currents are generated under the action of the wind force. These eddy currents cause the columnar eddy current sleeve 220 to swing rapidly.

[0065] Through the guiding action of structures such as the swing shaft 230 and the planar shaft seat 240, the columnar eddy current sleeve 220 realizes eccentric swing, and transmits the energy of the swing to the output shaft 231. The output shaft 231 is connected to the shaft rod group 130 through a connecting rod, thereby converting the eccentric swing of the swing shaft 230 into the eccentric swing of the shaft rod group 130.

[0066] The eccentric shaft rod group 130 drives the moving rotating blade 140 and the fixed rotating blade 150 to generate relative motion. Among them, the fixed rotating blade 150 remains stationary, and the moving rotating blade 140 swings near it. The moving rotating blade 140 and the fixed rotating blade 150 are combined into a structure similar to a scroll compressor, and the air flow is compressed through the relative motion of the two blades.

[0067] The compressed air flow enters through the air inlet cap 112 in the ventilation filter box 100 in sequence, and is pressurized under the action of the moving and fixed rotating blades in the two pump boxes. The pressurized air flow is sent into the building through the filter core 400 and the ventilation duct 300, completing the ventilation and air change inside the building.

[0068] Usage process:

[0069] Installation and preparation: Install the wind-driven component 200 on the roof or outer wall surface of the building to ensure that it can receive and utilize the ambient air flow. Install the ventilation filter box 100 and its internal structures such as the moving and fixed rotating blades in appropriate positions, and connect the ventilation duct 300 to ensure the smooth flow of the air flow.

[0070] Start working: When the external air flow starts to flow, the wind-driven component 200 activates the eddy current by using the wind force generated by the air flow, and then causes the eddy current sleeve 220 to swing. The swing is converted into an eccentric motion through structural guidance, driving the shaft rod group 130 to generate an eccentric swing.

[0071] Airflow Compression and Transportation: The eccentric motion drives the relative movement between the moving rotary blade 140 and the fixed rotary blade 150, forming the compression of the airflow. The compressed airflow passes through each pore inside the ventilation filter box 100, is further pressurized and transported to the interior of the building through the ventilation duct 300.

[0072] Ventilation and Air Exchange: The airflow entering the interior of the building is further processed to maintain the indoor air circulation, remove harmful substances and improve the indoor environmental quality.

[0073] Shutdown and Maintenance: When the system stops working, regular inspections and maintenance can be carried out to ensure the effectiveness of the ventilation filter box 100 and the filter core 400, and to ensure the stable operation of the wind-driven component 200 and the wind-driven structure.

[0074] The present invention realizes the energy-saving and emission-reduction functions of green buildings through natural wind power and an eccentric swing structure. The wind-driven component 200 drives the structure to generate eddy currents through wind power, and drives the relative movement between the moving rotary blade 140 and the fixed rotary blade 150 through a series of eccentric motions, ultimately achieving the effect of efficiently pressurizing and transporting the airflow, and effectively improving the air quality and ventilation effect inside the building.

[0075] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0076] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A green building energy-saving and emission-reduction ventilation structure, characterized in that: include: A ventilation filter box (100), a wind drive assembly (200), a ventilation duct (300), and a filter replacement element (400) detachably mounted on the inner side of the ventilation filter box (100); the upper and lower surfaces of the ventilation filter box (100) are respectively provided with a first pump box (110) and a second pump box (120); and the other sides of the first pump box (110) and the second pump box (120) are respectively fixedly mounted with an upper cover (111) and a lower cover (121); the top surface of the upper cover (111) is provided with an air inlet cap (112) for external airflow input, and the bottom surface of the lower cover (121) is connected to the ventilation duct (300) for airflow input. The interior of the building; fixed rotor blades (150) are fixedly mounted on the upper and lower sides of the ventilation filter box (100) and are respectively located on the inner sides of the first pump box (110) and the second pump box (120); movable rotor blades (140) are movably mounted on the surfaces of the upper cover (111) and the lower cover (121); the movable rotor blades (140) and the fixed rotor blades (150) are located in the same plane; the surfaces of the ventilation filter box (100), the first pump box (110) and the second pump box (120) are penetrated and sleeved with a shaft rod group (130); the shaft rod group (130) is connected to the movable rotor blade (140) to drive the movable rotor blade (140) to eccentrically move; The wind drive assembly (200) comprises a stand (210), a vortex sleeve (220), a swing shaft (230) and a plane shaft seat (240) fixed to the surface of the swing shaft (230); the vortex sleeve (220) is sleeved on the outer periphery of the stand (210), and a connecting rod (221) connected to the upper and lower ends of the swing shaft (230) is provided on the inner side of the vortex sleeve (220); an output shaft (231) for connecting to the top of the shaft rod group (130) is provided at the bottom end of the swing shaft (230); and a plurality of balls are provided on the surface of the swing shaft (230) for slidingly contacting the surface of the plane shaft seat (240); the vortex sleeve (220) is a lightweight composite fiber cylinder structure, and is made of one of stripped fiber or carbon fiber; the outer periphery of the vortex sleeve (220) is an inverted conical cylinder, and the inner periphery is a cylindrical cylinder sleeved on the outer periphery of the vortex sleeve (220); A pulling cable (212) connected to the top surface of the swing shaft (230) is provided on the inner side of the stand (210), and a spring member (211) used for positioning the plane shaft seat (240) is provided on the surface of the stand (210), one end of the spring member (211) is fixed to the surface of the stand (210) and the other end is connected to the surface of the plane shaft seat (240).

2. A green building energy-saving and emission-reduction ventilation structure according to claim 1, characterized in that: The shaft assembly (130) is arranged to penetrate the first pump box (110), the second pump box (120), and the ventilation filter box (100), and the surface of the shaft assembly (130) is respectively provided with a first crank shaft (131) and a second crank shaft (132) for driving the two moving impellers (140) to move, and the surface of the shaft assembly (130) is provided with a sliding plate (133) rotatably sleeved on the inner side of the upper cover (111), the first pump box (110), and the lower cover (121), the sliding plate (133) is coaxially arranged with the upper cover (111) and the lower cover (121), and the center of the first crank shaft (131) and the second crank shaft (132) deviate from the axis of the upper cover (111) and the lower cover (121).

3. A green building energy-saving and emission-reduction ventilation structure according to claim 1, characterized in that: The movable rotor blade (140) and the fixed rotor blade (150) are both in a planar spiral shape and are located in the same plane. The outer periphery of the movable rotor blade (140) is rotatably sleeved with a slip ring sleeve (141). The slip ring sleeve (141) is coaxially arranged with the upper cover (111) and the lower cover (121). The axis of the movable rotor blade (140) deviates from the axis of the slip ring sleeve (141).

4. A green building energy-saving and emission-reduction ventilation structure according to claim 1, characterized in that: The surface of the upper cover (111) is provided with an air inlet hole for connecting the air inlet cap (112) and the inner side of the first pump box (110); the surface of the ventilation filter box (100) is provided with a through hole for the air flow inside the first pump box (110) to flow into the second pump box (120) after passing through the filter element (400); the air inlet hole on the surface of the upper cover (111) and the through hole on the bottom surface of the ventilation filter box (100) are close to the periphery of the first pump box (110); the bottom surface of the lower cover (121) is provided with an exhaust hole connected to the ventilation duct (300); and the through hole on the top surface of the ventilation filter box (100) and the exhaust hole on the bottom surface of the lower cover (121) are close to the axis of the second pump box (120).

5. A green building energy-saving and emission-reduction ventilation structure according to claim 1, characterized in that: The surface of the swing shaft (230) is provided with a plurality of circular discs, and the surface of the plane shaft seat (240) is provided with a plurality of annular disc surfaces, and a ball is embedded in the surface of each circular disc and slidably abuts against the surface of each annular disc surface.

6. A green building energy-saving and emission-reduction ventilation structure according to claim 1, characterized in that: A sleeve is provided inside the plane shaft seat (240) for movement of the output shaft (231), and the inner diameter of the sleeve is greater than or equal to the diameter of the sliding plate (133).

Citation Information

Patent Citations

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