A natural ventilation device for high-ceilinged building spaces

Abstract

This application relates to a natural ventilation device for high-ceilinged building spaces, belonging to the technical field of building ventilation. It includes a wind cap body, with a wind sensing module fixedly installed on the outside of the wind cap body. The wind sensing module integrates wind speed and direction sensors. By incorporating a wind sensing module with integrated wind speed and direction sensors and an electronic compass, this application can monitor environmental parameters in real time and drive a first servo motor in the angle adjustment assembly to rotate a worm gear. Through meshing transmission with the worm wheel ring, the wind cap body and the air inlet pipe can automatically rotate relative to a fixed mounting sleeve, ensuring that their openings are always precisely aligned with the incoming wind direction. This significantly overcomes the high dependence of traditional wind caps on wind direction, greatly improving wind pressure utilization efficiency and ventilation stability. Simultaneously, the venturi tube design cleverly utilizes fluid dynamics principles to create a low-pressure zone at the throat, which, in conjunction with the side air inlet pipe, draws in external air for efficient ventilation of the indoor building.

Description

Technical Field

[0001] This application relates to the field of building ventilation technology, and in particular to a natural ventilation device for high-ceilinged spaces in buildings. Background Technology

[0002] Natural ventilation not only effectively improves indoor air quality and reduces indoor pollutant concentrations, but also reduces the frequency of use of mechanical ventilation equipment such as air conditioners, achieving energy conservation and consumption reduction in buildings. Natural ventilation is crucial in large spaces such as stadiums, exhibition halls, and industrial plants. Traditional natural ventilation devices often use a hood structure, utilizing the principles of thermal pressure and wind pressure to expel stale indoor air and introduce fresh air, thus meeting the building's natural ventilation needs to a certain extent.

[0003] However, existing traditional wind caps have certain limitations in practical applications. Because their ventilation efficiency is highly dependent on the natural wind direction, when the wind direction is inconsistent with the opening direction of the wind cap or the wind force is weak, the wind cap cannot make full use of the wind pressure, resulting in a significant reduction in ventilation effect. As a result, in some tall buildings, traditional wind caps are limited by wind direction and cannot ventilate efficiently, leading to frequent problems such as poor indoor air circulation, stuffiness and humidity, making it difficult to continuously and stably ensure a good indoor air environment. Utility Model Content

[0004] The purpose of this application is to provide a natural ventilation device for tall spaces in buildings. It can monitor environmental parameters in real time through a wind sensing module and drive an angle adjustment component through an external controller, so that the wind cap body and the air inlet pipe can automatically rotate relative to a fixed mounting sleeve, ensuring that its opening is always accurately aligned with the direction of the incoming wind. This solves the problems mentioned in the background art.

[0005] This application provides a natural ventilation device for high-ceilinged building spaces, employing the following technical solution: It includes a wind cap body, with a wind sensing module fixedly installed on the outer side of the wind cap body. The wind sensing module integrates wind speed and direction sensors and an electronic compass. An air inlet pipe is fixedly connected to one end of the wind cap body. A mounting sleeve is rotatably connected to the outer bottom of the wind cap body. An angle adjustment component is provided on the outer side of the mounting sleeve. Two symmetrical annular guide rails are fixedly connected to the outer side of the mounting sleeve. The angle adjustment assembly includes a mounting box slidably connected to the outside of an annular guide rail, a worm gear rotatably connected to the inside of the mounting box, a first servo motor fixedly mounted on the inside of the mounting box, the output end of the first servo motor fixedly connected to one end of the worm gear, a connecting ring fixedly connected to the upper side of the first servo motor, and the inner side of the connecting ring fixedly connected to the outer side of the wind cap body. The outer side of the worm gear meshes with the worm gear ring. A venturi tube is fixedly connected to the bottom inner side of the mounting sleeve. The wind sensing module and the first servo motor are both electrically connected to an external controller.

[0006] By adopting the above technical solution, the wind sensing module can sense the external wind direction in real time and determine its own orientation in combination with the electronic compass, ensuring the accuracy of wind sensing. After sensing the wind direction, the external controller can drive the first servo motor to drive the worm gear to rotate, which meshes with the worm wheel ring and drives the wind cap body to rotate under the connection of the connecting ring. This enables the opening of the wind cap body to automatically align with the direction of the wind, which solves the problem of the high dependence of traditional wind caps on wind direction. This allows the device to adapt to different wind directions, make full use of wind pressure, improve the stability and reliability of ventilation efficiency, and improve the problem of poor ventilation in tall spaces.

[0007] Preferably, the air inlet pipe has an outwardly flared conical structure, and a first filter plate is fixedly connected to the inner side of the air inlet pipe.

[0008] By adopting the above technical solution, the air inlet pipe with the outwardly expanding conical structure can increase the air intake area, introduce more air at the same wind speed, and improve ventilation efficiency. At the same time, the first filter plate can intercept larger particulate impurities in the air, prevent them from entering the ventilation device, reduce wear on internal components, and prevent pollutants from entering the room, thus ensuring indoor air cleanliness.

[0009] Preferably, the venturi tube consists of a tapering section, a throat, and an expanding section.

[0010] By adopting the above technical solution and the special structural design of the venturi tube, the airflow is accelerated through the converging section, forming a low-pressure zone in the throat. The pressure gradually recovers as it flows through the expanding section. This process effectively utilizes the principles of fluid mechanics. The negative pressure generated in the throat can significantly enhance the suction effect and strengthen the overall ventilation capacity, especially under natural wind power.

[0011] Preferably, a side air intake pipe is fixedly connected to the inside of the throat, and a second filter plate is fixedly connected to the inside of the side air intake pipe.

[0012] By adopting the above technical solution, the side air intake pipe in the low-pressure area of ​​the throat can efficiently draw in external air by utilizing the negative pressure generated by the Venturi effect. Combined with the synergistic effect of the air intake pipe, the air intake effect can be improved. At the same time, the second filter plate filters the air drawn in from the room, preventing indoor dust or particulate matter from entering the Venturi tube and causing pollution or blockage, ensuring the cleanliness of the device and smooth long-term operation.

[0013] Preferably, a main air duct is fixedly connected to the bottom outer side of the venturi tube, and a fan blade adjustment assembly is provided on the inner side of the main air duct.

[0014] By adopting the above technical solution, the air after being treated by the Venturi tube is transported through the main air duct, and the fan blade adjustment assembly can adjust the angle of air delivery according to the actual ventilation needs, thereby ensuring that the delivered air force is delivered in the specified direction.

[0015] Preferably, the fan blade adjustment assembly includes a lead screw rotatably connected to the inner side of the main air duct, a movable frame threadedly connected to the outer side of the lead screw, a second servo motor disposed outside the lead screw, and the outer side of the second servo motor being fixedly embedded in the outer side of the main air duct. The output end of the second servo motor is fixedly connected to one end of the lead screw, and a connecting frame is slidably connected to the outer side of the movable frame.

[0016] By adopting the above technical solution, the second servo motor drives the lead screw to rotate, the moving frame moves threaded on the lead screw, and the connecting frame drives the fan blade body to rotate, thereby achieving precise adjustment of the fan blade angle and enhancing the practicality and adaptability of the ventilation device.

[0017] Preferably, the fan blade adjustment assembly further includes a guide groove and a plurality of equidistant rotating shafts, and the outer side of the movable frame is slidably connected to the inner wall of the guide groove.

[0018] By adopting the above technical solution, the guide groove plays a guiding and limiting role for the moving frame, ensuring that the moving frame can move stably along a straight line when the screw rotates, ensuring the accuracy and stability of the fan blade angle adjustment, making the fan blade adjustment component more reliable, and improving the overall performance of the ventilation device.

[0019] Preferably, both ends of each of the rotating shafts are rotatably connected to the inner side of the main air duct, and a fan blade body is fixedly connected to the outer side of each of the rotating shafts. The rotating shaft is located at one end of the fan blade body, and a fixed shaft is fixedly connected to the other end of the fan blade body. The outer side of the fixed shaft is rotatably connected to the inner wall of the connecting frame.

[0020] By adopting the above technical solution, the rotating shaft provides rotational support for the fan blade body, and the connecting frame drives the fan blade body to rotate around the rotating shaft through the fixed shaft, so as to realize the flexible adjustment of the fan blade angle, meet the needs of different ventilation conditions, and improve the ventilation effect and control capability of the ventilation device.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] This natural ventilation device for tall building spaces integrates wind speed and direction sensors and an electronic compass into a wind sensing module. This module monitors environmental parameters in real time and drives the first servo motor in the angle adjustment component to rotate the worm gear. Through meshing transmission with the worm wheel ring, the vent cap body and the air inlet pipe can automatically rotate relative to a fixed mounting sleeve, ensuring that the opening is always precisely aligned with the direction of the incoming wind. This significantly overcomes the high dependence of traditional vent caps on wind direction and greatly improves wind pressure utilization efficiency and ventilation stability. At the same time, the Venturi tube design cleverly utilizes fluid dynamics principles to create a low-pressure zone at the throat, which, in conjunction with the side air inlet pipe, draws in external air for efficient ventilation of the indoor building. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 A three-dimensional structural diagram of the sleeve, annular guide rail, and worm gear ring for this application;

[0025] Figure 3 This is a schematic diagram of the internal structure of the regulating component in this application;

[0026] Figure 4 This is a schematic cross-sectional view of the venturi tube used in this application.

[0027] Figure 5 This is a schematic diagram of the internal structure of the fan blade adjustment assembly of this application.

[0028] In the picture:

[0029] 1. Wind cap body; 2. Wind force sensing module; 3. Air inlet duct; 4. Mounting sleeve; 5. Angle adjustment assembly; 501. Mounting box; 502. Worm gear; 503. First servo motor; 504. Connecting ring; 6. Circular guide rail; 7. Worm gear ring; 8. First filter plate; 9. Venturi tube; 901. Tapered section; 902. Throat; 903. Expanding section; 904. Side air inlet duct; 905. Second filter plate; 10. Main air duct; 11. Fan blade adjustment assembly; 1101. Lead screw; 1102. Moving frame; 1103. Guide groove; 1104. Second servo motor; 1105. Connecting frame; 1106. Rotating shaft; 1107. Fan blade body; 1108. Fixed shaft. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0031] Example 1: A natural ventilation device for high-ceilinged spaces in buildings, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a windproof hood body 1, with a wind sensing module 2 fixedly installed on its outer side. The wind sensing module 2 integrates wind speed and direction sensors, as well as an electronic compass. Through the wind sensing module 2, the external wind direction can be sensed in real time, and the system's own position can be determined in conjunction with the electronic compass, ensuring accurate wind sensing. One end of the windproof hood body 1 is fixedly connected to an air inlet pipe 3. The air inlet pipe 3 has an outwardly flared conical structure, and a first filter plate 8 is fixedly connected to its inner side. The aforementioned outwardly flared conical structure allows for the intake of air... Pipe 3 can expand the air intake area, introduce more air at the same wind speed, and improve ventilation efficiency. At the same time, the first filter plate 8 can intercept larger particulate impurities in the air, prevent them from entering the ventilation device, reduce wear of internal components, and prevent pollutants from entering the room, ensuring indoor air cleanliness. The bottom outer side of the wind cap body 1 is rotatably connected to the mounting sleeve 4. An angle adjustment component 5 is set on the outer side of the mounting sleeve 4. Two symmetrical annular guide rails 6 are fixedly connected to the outer side of the mounting sleeve 4. A worm gear ring 7 is fixedly connected to the outer side of the mounting sleeve 4.

[0032] The angle adjustment component 5 includes a mounting box 501 slidably connected to the outside of the annular guide rail 6. A worm gear 502 is rotatably connected to the inside of the mounting box 501. A first servo motor 503 is fixedly mounted on the inside of the mounting box 501. The output end of the first servo motor 503 is fixedly connected to one end of the worm gear 502. A connecting ring 504 is fixedly connected to the upper side of the first servo motor 503, and the inner side of the connecting ring 504 is fixedly connected to the outside of the wind cap body 1. The external controller can drive the first servo motor 503 to rotate the worm gear 502, which meshes with the worm wheel ring 7. Under the connection of the connecting ring 504, the wind cap body 1 is driven to rotate, so that the opening of the wind cap body 1 can be automatically aligned with the direction of the incoming wind, which can solve the dependence of traditional wind caps on wind direction. To address the issue of high performance, the device can adapt to different wind directions. The outer side of the worm gear 502 meshes with the worm wheel ring 7, and a Venturi tube 9 is fixedly connected to the inner bottom of the mounting sleeve 4. The wind sensing module 2 and the first servo motor 503 are both electrically connected to an external controller. The Venturi tube 9 consists of a converging section 901, a throat 902, and an expanding section 903. By adopting the above technical solution, the special structural design of the Venturi tube 9 allows the airflow to accelerate through the converging section 901, forming a low-pressure zone in the throat 902. The pressure gradually recovers as the airflow passes through the expanding section 903. This process effectively utilizes the principles of fluid mechanics. The negative pressure generated in the throat 902 can significantly enhance the suction effect and strengthen the overall ventilation capacity, especially under natural wind power.

[0033] Example 2: A natural ventilation device for high-ceilinged building spaces, referring to... Figure 4 and Figure 5 The Venturi tube 9 consists of a converging section 901, a throat 902, and an expanding section 903. The special structural design of the Venturi tube 9 allows the airflow to accelerate through the converging section 901, forming a low-pressure zone in the throat 902. As the airflow passes through the expanding section 903, the pressure gradually recovers. This process effectively utilizes fluid dynamics principles; the negative pressure generated in the throat 902 significantly enhances the suction effect and strengthens the overall ventilation capacity, especially under natural wind power. A side air inlet pipe 904 is fixedly connected to the inner side of the throat 902, and a second filter plate 905 is fixedly connected to the inner side of the side air inlet pipe 904. The side air inlet pipe 904 in the low-pressure zone of the throat 902 can utilize… The negative pressure generated by the Venturi effect efficiently draws in outside air. Combined with the synergistic effect of the air inlet duct 3, it can improve the air intake effect. At the same time, the second filter plate 905 filters the air drawn in from the room to prevent indoor dust or particulate matter from entering the Venturi tube 9 and causing pollution or blockage, ensuring the cleanliness of the device and smooth long-term operation. The main air duct 10 is fixedly connected to the bottom outer side of the Venturi tube 9. The fan blade adjustment assembly 11 is installed on the inner side of the main air duct 10. The main air duct 10 is used to transport the air processed by the Venturi tube 9. The fan blade adjustment assembly 11 can adjust the air delivery angle according to the actual ventilation needs, thereby ensuring that the delivered air force is delivered in the specified direction.

[0034] The fan blade adjustment assembly 11 includes a lead screw 1101 rotatably connected to the inner side of the main air duct 10. A movable frame 1102 is threadedly connected to the outer side of the lead screw 1101. A second servo motor 1104 is disposed outside the lead screw 1101, and the outer side of the second servo motor 1104 is fixedly embedded in the outer side of the main air duct 10. The output end of the second servo motor 1104 is fixedly connected to one end of the lead screw 1101. A connecting frame 1105 is slidably connected to the outer side of the movable frame 1102. The second servo motor 1104 drives the lead screw 1101 to rotate, and the movable frame 1102 moves threadedly on the lead screw 1101. The connecting frame 1105 drives the fan blade body 1107 to rotate, thereby achieving precise adjustment of the fan blade angle and enhancing the practicality and adaptability of the ventilation device. The fan blade adjustment assembly 11 also includes a guide groove 1103 and multiple equidistantly arranged rotating shafts 1106. The outer side of the movable frame 1102 is slidably connected to the inner wall of the guide groove 1103. The three movable frames 1102 serve as guides and limiters, ensuring that the movable frames 1102 can move stably along a straight line when the lead screw 1101 rotates, guaranteeing the accuracy and stability of the fan blade angle adjustment, making the fan blade adjustment assembly 11 more reliable, and improving the overall performance of the ventilation device. Both ends of each rotating shaft 1106 are rotatably connected to the inner side of the main air duct 10, and the outer side of each rotating shaft 1106 is fixedly connected to the fan blade body 1107. The rotating shaft 1106 is located at one end of the fan blade body 1107, and the other end of the fan blade body 1107 is fixedly connected to the fixed shaft 1108. The outer side of the fixed shaft 1108 is rotatably connected to the inner wall of the connecting frame 1105. The rotating shaft 1106 provides rotational support for the fan blade body 1107. The connecting frame 1105 drives the fan blade body 1107 to rotate around the rotating shaft 1106 through the fixed shaft 1108, realizing flexible adjustment of the fan blade angle, meeting the needs of different ventilation conditions, and improving the ventilation effect and control capability of the ventilation device.

[0035] The implementation principle of this application embodiment is as follows: the wind speed and direction sensor in the wind force sensing module 2, together with the electronic compass, continuously monitors the external wind speed and direction, and continuously transmits the monitored information to the external controller. Then, the external controller determines the optimal windward angle based on the sensing information and drives the first servo motor 503 in the angle adjustment component 5 to work. Then, the first servo motor 503 drives the worm gear 502 to rotate. The worm gear 502 meshes with the worm wheel ring 7 fixed on the mounting sleeve 4. At this time, the mounting sleeve 4 and the lower structure such as the main air duct 10 and the venturi tube 9 fixedly connected to it remain stationary, while the wind cap body 1 and the air inlet pipe 3 rotate relative to each other until their openings are precisely aligned with the direction of the incoming wind. External airflow enters through the outward-expanding conical air inlet duct 3, undergoes preliminary filtration by the first filter plate 8, and then enters the Venturi tube 9. It accelerates through the tapered section 901, reaching high speed and forming a significant low-pressure zone at the throat 902. This low pressure draws in external air through the side air inlet duct 904, and after being filtered by the second filter plate 905, it enters the throat 902, increasing the airflow volume. Afterward, the airflow is decelerated and pressurized through the outward-expanding section 903, and then delivered into the tall interior of the building through the main air duct 10, completing ventilation. When the blowing angle needs adjustment, the second servo motor 1104 drives the lead screw 1101 to rotate, causing the moving frame 1102 to move linearly along the guide groove 1103. The moving frame 1102 pulls or pushes each fan blade body 1107 through the connecting frame 1105 and the fixed shaft 1108. The fan blade body 1107 rotates around its pivot 1106 to change the airflow angle.

[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A natural ventilation device for tall spaces in buildings, comprising a cowling body (1), characterized in that: A wind sensing module (2) is fixedly installed on the outside of the wind cap body (1). The wind sensing module (2) integrates a wind speed and wind direction sensor and an electronic compass. An air inlet pipe (3) is fixedly connected to one end of the wind cap body (1). An installation sleeve (4) is rotatably connected to the bottom outside of the wind cap body (1). An angle adjustment component (5) is provided on the outside of the installation sleeve (4). Two symmetrical annular guide rails (6) are fixedly connected to the outside of the installation sleeve (4). A worm gear ring (7) is fixedly connected to the outside of the installation sleeve (4). The angle adjustment component (5) includes an installation box (50) slidably connected to the outside of the annular guide rails (6). 1) A worm gear (502) is rotatably connected to the inner side of the mounting box (501). A first servo motor (503) is fixedly installed on the inner side of the mounting box (501). The output end of the first servo motor (503) is fixedly connected to one end of the worm gear (502). A connecting ring (504) is fixedly connected to the upper side of the first servo motor (503), and the inner side of the connecting ring (504) is fixedly connected to the outer side of the wind cap body (1). The outer side of the worm gear (502) meshes with the worm wheel ring (7). A venturi tube (9) is fixedly connected to the inner bottom of the mounting sleeve (4). The wind force sensing module (2) and the first servo motor (503) are both electrically connected to an external controller.

2. A natural ventilation device for tall spaces in buildings according to claim 1, characterized in that: The air inlet pipe (3) has an outwardly flared conical structure, and a first filter plate (8) is fixedly connected to the inner side of the air inlet pipe (3).

3. A natural ventilation device for tall spaces in buildings according to claim 1, characterized in that: The Venturi tube (9) consists of a tapering section (901), a throat (902), and an expanding section (903).

4. A natural ventilation device for high-ceilinged spaces in buildings according to claim 3, characterized in that: A side air intake pipe (904) is fixedly connected to the inside of the throat (902), and a second filter plate (905) is fixedly connected to the inside of the side air intake pipe (904).

5. A natural ventilation device for tall spaces in buildings according to claim 4, characterized in that: The bottom outer side of the Venturi tube (9) is fixedly connected to the main air duct (10), and the inner side of the main air duct (10) is provided with a fan blade adjustment assembly (11).

6. A natural ventilation device for tall spaces in buildings according to claim 5, characterized in that: The fan blade adjustment assembly (11) includes a lead screw (1101) rotatably connected to the inside of the main air duct (10). A movable frame (1102) is threadedly connected to the outside of the lead screw (1101). A second servo motor (1104) is provided on the outside of the lead screw (1101), and the outside of the second servo motor (1104) is fixedly embedded in the outside of the main air duct (10). The output end of the second servo motor (1104) is fixedly connected to one end of the lead screw (1101). A connecting frame (1105) is slidably connected to the outside of the movable frame (1102).

7. A natural ventilation device for tall spaces in buildings according to claim 6, characterized in that: The fan blade adjustment assembly (11) also includes a guide groove (1103) and a plurality of equidistant rotating shafts (1106), and the outer side of the moving frame (1102) is slidably connected to the inner wall of the guide groove (1103).

8. A natural ventilation device for tall spaces in buildings according to claim 7, characterized in that: Both ends of each of the rotating shafts (1106) are rotatably connected to the inner side of the main air duct (10), and the outer side of each of the rotating shafts (1106) is fixedly connected to the fan blade body (1107). The rotating shaft (1106) is located at one end of the fan blade body (1107), and the other end of the fan blade body (1107) is fixedly connected to a fixed shaft (1108), and the outer side of the fixed shaft (1108) is rotatably connected to the inner wall of the connecting frame (1105).

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