An energy-saving and environmentally friendly thin rainproof roof gravity ventilator

Abstract

The present invention relates to the technical field of ventilators, and discloses an energy-saving and environmentally friendly rooftop thin-type rainproof gravity ventilator, comprising a base, on which are mounted a plurality of rain shields, flashing plates, and rain shields, the rain shields comprising a cover plate fixedly mounted on the side of the base and an adjustment plate slidably mounted on the side of the base, a lifting plate fixedly mounted on the end of the adjustment plate away from the cover plate, a wind wheel track plate fixedly mounted on the side of the base, a wind wheel mechanism provided at the bottom of the adjustment plate, and when there is strong wind, the lifting plate drives the adjustment plate and the wind wheel mechanism to move within the wind wheel track plate. This solution can reduce the distance between adjacent cover plates and the adjustment plate, automatically reduce the size of the air inlet, and reduce the impact of strong winds.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilators, in particular to an energy-saving and environment-friendly thin-type rainproof gravity ventilator for a roof. Background Art

[0002] Roof ventilators are also known as roof natural ventilators or rooftop natural ventilators. They primarily focus on the aerodynamic wind load model theory: "When wind acts on an object, the windward side experiences pressure, while the leeward side and downwind sides experience suction." Existing thin roof ventilators have achieved some success in technical implementation. Some products cleverly utilize the principles of natural wind pressure and thermal pressure to achieve efficient ventilation and smoke exhaust without the need for additional electrical power, continuously introducing fresh air into the room and effectively improving air quality.

[0003] Existing rainproof ventilators mostly adopt a rain shield plus a labyrinth air duct design. On stormy and windy days, the strong wind pressure not only impacts the rain shield and creates noise, but also the strong wind carries the rainwater and changes the direction and intensity of the water inlet, which may cause leakage. Therefore, it does not meet the existing needs. In this regard, we propose an energy-saving and environmentally friendly roof thin rainproof gravity ventilator. Summary of the Invention

[0004] The present invention provides an energy-saving and environmentally friendly roof-type thin rainproof gravity ventilator. The energy-saving and environmentally friendly roof-type thin rainproof gravity ventilator can reduce the distance between the adjacent covering plates and the adjustment plate, automatically reduce the size of the air inlet, and reduce the impact of strong winds. It solves the problem mentioned in the above background technology that the existing rainproof ventilators mostly adopt a rain shield plus a maze-type air duct design. On stormy and windy days, the strong wind pressure not only impacts the rain shield and creates noise, but also the strong wind carries rainwater and changes the water inlet direction and intensity, which may cause leakage.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides an energy-saving and environmentally friendly roof-type thin-type rainproof gravity ventilator, comprising a base, on which are installed multiple sets of rain shields, rain spreading plates and rain shields, the rain shields comprising a covering plate fixedly mounted on the side of the base and an adjustment plate slidably mounted on the side of the base, a lifting plate fixedly mounted on the end of the adjustment plate away from the covering plate, a wind wheel track plate fixedly mounted on the side of the base, a wind wheel mechanism provided at the bottom of the adjustment plate, and when there is strong wind, the lifting plate drives the adjustment plate and the wind wheel mechanism to move in the wind wheel track plate.

[0006] Optionally, the flashing plate is configured as a baffle with an upward convex middle and downward slanted sides. A rain receiving plate is integrally connected to the side of the flashing plate away from the rain shield. A drainage trough is provided on the side of the base, and the drainage trough is provided corresponding to the flashing plate.

[0007] Optionally, the rain shield is arranged below the rain guard plate, the rain shield is arranged as an arc-shaped plate, and water collecting trough 1 and water collecting trough 2 are respectively provided at both ends of the rain shield, and the water collecting trough 1 and the water collecting trough 2 are both installed on the side of the base.

[0008] Optionally, an end groove is formed at one end of the covering plate adjacent to the adjusting plate, a folding plate is fixedly installed in the end groove, and the other end of the folding plate is connected to the adjusting plate.

[0009] Optionally, a connecting piece is fixedly installed on the end of the adjustment plate, and the connecting piece is fixedly connected to the folding plate. A sealing sleeve is fixedly installed on the end of the adjustment plate, and the sealing sleeve is sleeved on the outside of the connecting piece.

[0010] In normal state, the sealing sleeve is in contact with the end of the covering plate.

[0011] Optionally, the wind wheel mechanism includes a wheel column installed at the bottom of the adjustment plate, the wheel column is slidably connected to the wind wheel track plate, a movable wheel is rotatably installed at the bottom of the wheel column, a wind resistance tube is installed on the inner wall of the wind wheel track plate, and a brake rod is installed on the side of the wheel column, and the brake rod is in contact with the wind resistance tube.

[0012] Optionally, the wind resistance tube is configured as a hollow hose, a plurality of baffles are provided inside the wind resistance tube, the baffles divide the interior of the wind resistance tube into a plurality of air cavities, a through-hole is provided in the middle of the baffle, the brake rod is configured as an L-shaped right-angle rod, a roller is rotatably sleeved on the outer side of the vertical part of the brake rod, and the roller is rollingly fitted with the wind resistance tube.

[0013] Optionally, a wind wheel track seat is fixedly installed on the wind wheel track plate, a pipe groove and a wheel groove are provided inside the wind wheel track seat, the wind resistance tube is fixedly installed in the pipe groove, the movable wheel is located in the wheel groove, a rain drain trough hole is provided on the cover plate, and the rain drain trough hole is located above the wind wheel track seat, the movable wheel is configured as a butterfly wheel, and there is a gap between the middle of the bottom surface of the movable wheel and the inner wall of the wind wheel track seat.

[0014] Optionally, an elastic part and a snap ring are fixedly installed on the outer side of the wheel column, the snap ring is configured as a flexible elastic sheet, the snap ring is located above the elastic part, the elastic part is sleeved on the outer side of the wheel column, the snap ring is placed above the elastic part, and the elastic part is placed above the brake rod.

[0015] Optionally, the wind resistance tube is configured as a perfect circular tube, and a corner material block is integrally bonded to the oblique lower portion of the wind resistance tube, and the corner material block is glued to the inner wall of the wind wheel track seat.

[0016] Through the above technical solution, the energy-saving and environmentally friendly thin-type rainproof roof gravity ventilator provided by the present disclosure is used: through the setting of the wind wheel mechanism, when strong wind blows, the wind will lift the top of the plate, causing the adjustment plate to slide along the wind wheel track plate, thereby reducing the distance between the adjacent cover plate and the adjustment plate, automatically reducing the size of the air inlet, and reducing the impact of strong winds;

[0017] Furthermore, the coordination of the windage tube structure and the brake lever can automatically limit the moving speed of the adjustment plate, making it glide as evenly and slowly as possible, reducing the shaking of the adjustment plate during movement and the vibration when the plates come into contact with each other.

[0018] In addition, due to the Bernoulli principle, the lifting plate is used to lift the adjustment plate as a whole, so that the adjustment plate and the components fixedly connected to it are lifted up together, thereby reducing the obstruction to the flow of accumulated water in the wind wheel track plate, allowing the accumulated water to be discharged smoothly. The moving wheel produces a certain amount of air stagnation when moving upward, which increases the time for draining the accumulated water in the wind wheel track plate, thereby improving the drainage effect.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 This is a schematic side cross-sectional structure diagram of the rain shield, flashing plate, and rain protection plate of the present invention in normal state.

[0023] Figure 3 For the present invention Figure 2 A is an enlarged structural diagram of FIG.

[0024] Figure 4 It is a schematic diagram of the side cross-sectional structure of the rain shield and the flashing plate of the present invention during strong winds.

[0025] Figure 5 It is a schematic diagram of the three-dimensional split structure of the rain shield and wind wheel track plate of the present invention.

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point B.

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the wind wheel mechanism and the wind wheel track plate of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-sectional structure of the windage tube of the present invention.

[0029] Figure 9 This is a schematic diagram of the present invention when the windage tube is not in contact with the roller.

[0030] Figure 10 Schematic diagram of the windage tube and roller in normal state of the present invention.

[0031] Figure 11 Schematic diagram of the wind resistance tube and roller during strong wind lifting of the present invention.

[0032] Explanation of the accompanying reference numerals: 110, base; 120, rain shield; 130, rain overflow plate; 131, rain receiving plate; 140, rainproof plate; 150, drainage trough; 160, water collecting trough 1; 170, water collecting trough 2; 210, covering plate; 211, end groove; 212, protrusion; 220, adjustment plate; 221, sealing sleeve; 230, folding plate; 231, connecting plate; 240, lifting plate; 310, wind wheel track plate; 320, wind wheel track seat; 330, pipe groove; 340, moving wheel; 350, wheel groove; 360, wind resistance tube; 361, resistance plate; 362, perforation; 363, corner block; 370, brake rod; 380, roller; 410, rain drain trough hole; 430, wheel column; 440, elastic part; 450, snap ring. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present disclosure more clearly understood, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.

[0034] In the description of the present disclosure, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply 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 present disclosure. The terms "first" and "second" are used to distinguish one element from another and do not have sequentiality or importance. In addition, when the following description refers to the drawings, the same figure marks in different drawings represent the same or similar elements, which are not repeated in this disclosure.

[0035] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0036] According to some embodiments of the present disclosure, there is provided an energy-saving and environmentally friendly roof thin rainproof gravity ventilator, referring to Figures 1-11 As shown in the figure, the energy-saving and environmentally friendly roof thin rainproof gravity ventilator includes a base 110, on which are installed a plurality of rain shields 120, rain spreading plates 130 and rain shields 140, the rain shields 120 include a covering plate 210 fixedly mounted on the side of the base 110 and an adjusting plate 220 slidably mounted on the side of the base 110, a lifting plate 240 is fixedly mounted on the end of the adjusting plate 220 away from the covering plate 210, a wind wheel track plate 310 is fixedly mounted on the side of the base 110, and a wind wheel mechanism is provided at the bottom of the adjusting plate 220. When there is strong wind, the lifting plate 240 drives the adjusting plate 220 and the wind wheel mechanism to move in the wind wheel track plate 310.

[0037] In this way, through the setting of the wind wheel mechanism, when strong wind blows, the wind will lift the plate 240 up, causing the adjustment plate 220 to slide along the wind wheel track plate 310, thereby reducing the distance between the adjacent covering plate 210 and the adjustment plate 220, automatically reducing the size of the air inlet, and reducing the impact of strong wind.

[0038] In addition, the flashing plate 130 is configured as a baffle with an upward convex middle and downward inclined sides. The side of the flashing plate 130 away from the rain shield 120 is integrally connected with a rain receiving plate 131, and a drainage trough 150 is provided on the side of the base 110, and the drainage trough 150 is provided corresponding to the flashing plate 130.

[0039] The rainproof plate 140 is arranged below the rain shield 120. The rainproof plate 140 is arranged as an arc-shaped plate. A water collecting trough 160 and a water collecting trough 2 170 are respectively provided at both ends of the rainproof plate 140. The water collecting trough 160 and the water collecting trough 2 170 are both installed on the side of the base 110.

[0040] Furthermore, an end groove 211 is formed at one end of the covering plate 210 adjacent to the adjusting plate 220 , and a folding plate 230 is fixedly installed in the end groove 211 , and the other end of the folding plate 230 is connected to the adjusting plate 220 .

[0041] A connecting piece 231 is fixedly mounted on the end of the adjustment plate 220. The connecting piece 231 is fixedly connected to the folding plate 230. A sealing sleeve 221 is fixedly mounted on the end of the adjustment plate 220. The sealing sleeve 221 is mounted outside the connecting piece 231. In normal operation, the sealing sleeve 221 is in contact with the end of the cover plate 210. The sealing sleeve 221 is configured as a rubber sleeve.

[0042] Specifically, a protrusion 212 is fixedly installed at the end of the covering plate 210. Under normal circumstances, the protrusion 212 contacts the sealing sleeve 221 and provides support. When the wind is strong, the adjustment plate 220 moves and moves away from the covering plate 210 of this group, and the folding plate 230 is unfolded.

[0043] Furthermore, the wind wheel mechanism includes a wheel column 430 installed at the bottom of the adjustment plate 220, the wheel column 430 is slidably connected to the wind wheel track plate 310, a movable wheel 340 is rotatably installed at the bottom of the wheel column 430, a wind resistance tube 360 ​​is installed on the inner wall of the wind wheel track plate 310, and a brake rod 370 is installed on the side of the wheel column 430, and the brake rod 370 is in contact with the wind resistance tube 360.

[0044] The wind resistance tube 360 ​​is configured as a hollow hose, and a number of baffles 361 are provided inside the wind resistance tube 360. The baffles 361 divide the interior of the wind resistance tube 360 ​​into a number of air cavities. A through-hole 362 is provided in the middle of the baffle 361. The brake rod 370 is configured as an L-shaped right-angle rod. A roller 380 is rotatably sleeved on the outer side of the vertical part of the brake rod 370, and the roller 380 rolls and fits with the wind resistance tube 360.

[0045] The roller 380 and the windage tube 360 ​​are in an interference fit, and the small air chamber adjacent to the fit is compressed, causing the adjacent barrier 361 to deform, opening the perforations 362 of the barrier 361 and allowing the air in the air chamber to flow. This reduces the air pressure in the air chamber, squeezing and deforming the corresponding portion of the windage tube 360 ​​sufficiently to allow the brake rod 370 or the roller 380 to pass through. However, if the adjustment plate 220 slides too quickly, the windage tube 360 ​​is not squeezed long enough, the perforations 362 are not fully exhausted, and there is more air in the air chamber. The windage tube 360 ​​does not deform sufficiently, preventing the brake rod 370 from passing through until the windage tube 360 ​​is sufficiently deformed.

[0046] Through the above technical solution, the energy-saving and environmentally friendly roof-type thin rainproof gravity ventilator provided by the present invention, when in use, uses strong wind to change the state of the adjustment plate 220 and the covering plate 210, thereby automatically adjusting the size of the ventilator's air intake and reducing the amount of air intake due to strong winds. In this process, the brake rod 370 contacts and squeezes the wind resistance tube 360, increasing the sliding resistance, which limits the moving speed of the adjustment plate 220 and improves safety.

[0047] It should be noted that other undisclosed structures of the ventilator in this embodiment are all prior arts.

[0048] In some embodiments of the present disclosure, it is intended to facilitate solving the problem that the structure is installed on the roof and the adjustment plate 220 can be moved, which leads to easy leakage. Figures 1-11 As shown in FIG, a rotor track base 320 is fixedly mounted on the rotor track plate 310. The rotor track base 320 is provided with a pipe groove 330 and a wheel groove 350. The windage tube 360 ​​is fixedly mounted in the pipe groove 330. The movable wheel 340 is located in the wheel groove 350. A rain drain trough 410 is provided on the cover plate 210. The rain drain trough 410 is located above the rotor track base 320. The movable wheel 340 is configured as a butterfly wheel. A gap is formed between the middle portion of the bottom surface of the movable wheel 340 and the inner wall of the rotor track base 320. Water accumulated in the rotor track base 320 can flow through the gap between the movable wheel 340 and the bottom wall of the rotor track base 320. Through the provision of the rain drain trough 410, the water accumulated on the adjustment plate 220 flows from the rain drain trough 410 into the rotor track base 320 and is then discharged.

[0049] When the wind blows, the wind speed at high places is greater than that at low places. Objects at low places are easily sucked upwards by the pressure, and the adjustment plate 220 and the wheel column 430 and other components are lifted up together. Figures 4 to 7 The lifting plate 240 is set as an arc-shaped plate. Part of the wind will be guided along the lifting plate 240 along the rain drain trough hole 410 to the inside of the wind wheel track seat 320 to blow air, and another part of the wind will lift the adjustment plate 220 as a whole according to the Bernoulli principle.

[0050] An elastic portion 440 and a snap ring 450 are fixedly mounted on the outside of the wheel column 430. The snap ring 450 is configured as a flexible elastic sheet and is located above the elastic portion 440. The elastic portion 440 is sleeved on the outside of the wheel column 430, and the snap ring 450 is placed above the elastic portion 440. The elastic portion 440 is positioned above the brake lever 370. The elastic portion 440 can be configured as a spring or a rubber block.

[0051] The wind resistance tube 360 ​​is set as a perfect circular tube, and the angle block 363 is integrally bonded to the oblique lower part of the wind resistance tube 360, and the angle block 363 is glued to the inner wall of the wind wheel track seat 320. Figure 10 Since the corner block 363 is obliquely below the windage tube 360, the windage tube 360 ​​is pulled downward and deformed by the friction of the brake lever 370 or the roller 380 and gravity. The windage tube 360 ​​is hindered by the corner block 363, so that the inner diameter of the deformation is relatively wide.

[0052] See Figure 10 When the adjustment plate 220 is lifted, the brake lever 370 or the roller 380 drives the wind resistance tube 360 ​​to move upward. At this time, there is no obstruction from the corner block 363, and its inner diameter is relatively narrow when it is deformed. In addition, the wind resistance tube 360 ​​is also subject to its own rebound during the process of being driven upward. Therefore, it is easier for the wind resistance tube 360 ​​to deform upward than downward, that is, the speeds of the moving wheel 340 moving up and down are different, and the moving wheel 340 generates a certain amount of air stagnation when moving upward. In addition, in this embodiment, the surface of the moving wheel 340 can be provided with bevel teeth, and the wind induced plate introduces wind into the wind wheel track seat 320, which can blow the moving wheel 340 and throw away the water on the moving wheel 340, thereby reducing the amount of accumulated water.

[0053] Through the above technical solution, when the energy-saving and environmentally friendly roof-type thin rainproof gravity ventilator provided by the present invention is in use, when there is strong wind, the adjustment plate 220 is lifted as a whole, so that the obstruction of the flow of accumulated water in the wind wheel track seat 320 is reduced, and due to the influence of the wind resistance tube 360 ​​and the corner block 363, the speed of the moving wheel 340 moving up and down is different. The moving wheel 340 produces a certain amount of air stagnation when moving up, which increases the time for draining the accumulated water in the wind wheel track seat 320, thereby improving the rainproof and drainage effect of the ventilator.

[0054] It should be noted that the end of the wind wheel track seat 320 is connected with a drainage slot hole, which can discharge the received rainwater to the outside.

[0055] In this document, relational terms such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or that are inherent to such process, method, article, or apparatus.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0057] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An energy-saving and environmentally friendly thin-type rainproof gravity ventilator for a roof, comprising a base (110), on which are mounted a plurality of rain shields (120), flashing plates (130) and rain shields (140), characterized in that: The rain shield (120) includes a covering plate (210) fixedly mounted on the side of the base (110) and an adjusting plate (220) slidably mounted on the side of the base (110), a lifting plate (240) fixedly mounted on one end of the adjusting plate (220) away from the covering plate (210), a wind wheel track plate (310) fixedly mounted on the side of the base (110), a wind wheel mechanism being arranged at the bottom of the adjusting plate (220), and when there is strong wind, the lifting plate (240) drives the adjusting plate (220) and the wind wheel mechanism to move in the wind wheel track plate (310).

2. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 1 is characterized by: The flashing plate (130) is configured as a baffle with a convex center and downwardly inclined sides. A rain receiving plate (131) is integrally connected to a side of the flashing plate (130) away from the rain shield (120). A drainage trough (150) is provided on a side of the base (110), and the drainage trough (150) is provided corresponding to the flashing plate (130).

3. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 1 is characterized by: The rainproof plate (140) is arranged below the rain shield (120). The rainproof plate (140) is arranged as an arc-shaped plate. A water collecting trough (160) and a water collecting trough (170) are respectively arranged at both ends of the rainproof plate (140). The water collecting trough (160) and the water collecting trough (170) are both installed on the side of the base (110).

4. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 1, characterized in that: An end groove (211) is provided at one end of the covering plate (210) adjacent to the adjusting plate (220), a folding plate (230) is fixedly installed in the end groove (211), and the other end of the folding plate (230) is connected to the adjusting plate (220).

5. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 4 is characterized by: A connecting piece (231) is fixedly mounted on the end of the adjusting plate (220), and the connecting piece (231) is fixedly connected to the folding plate (230). A sealing sleeve (221) is fixedly mounted on the end of the adjusting plate (220), and the sealing sleeve (221) is sleeved on the outside of the connecting piece (231); In normal state, the sealing sleeve (221) is in contact with the end of the cover plate (210).

6. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 1, characterized in that: The wind wheel mechanism comprises a wheel column (430) mounted on the bottom of the adjustment plate (220), the wheel column (430) being slidably connected to the wind wheel track plate (310), a moving wheel (340) being rotatably mounted on the bottom of the wheel column (430), a wind resistance tube (360) being mounted on the inner wall of the wind wheel track plate (310), a brake rod (370) being mounted on the side of the wheel column (430), and the brake rod (370) being in contact with the wind resistance tube (360).

7. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 6, characterized in that: The wind resistance tube (360) is configured as a hollow hose. A plurality of baffles (361) are provided inside the wind resistance tube (360). The baffles (361) divide the interior of the wind resistance tube (360) into a plurality of air cavities. A through-hole (362) is provided in the middle of the baffle (361). The brake rod (370) is configured as an L-shaped right-angle rod. A roller (380) is rotatably sleeved on the outer side of the vertical portion of the brake rod (370). The roller (380) is in rolling contact with the wind resistance tube (360).

8. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 7, characterized in that: A wind wheel track seat (320) is fixedly mounted on the wind wheel track plate (310), a pipe groove (330) and a wheel groove (350) are provided inside the wind wheel track seat (320), the wind resistance tube (360) is fixedly mounted in the pipe groove (330), the moving wheel (340) is located in the wheel groove (350), a rain drain trough hole (410) is provided on the cover plate (210), the rain drain trough hole (410) is located above the wind wheel track seat (320), the moving wheel (340) is configured as a butterfly wheel, and a gap is formed between the middle of the bottom surface of the moving wheel (340) and the inner wall of the wind wheel track seat (320).

9. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 8, characterized in that: An elastic portion (440) and a snap ring (450) are fixedly mounted on the outer side of the wheel column (430), wherein the snap ring (450) is configured as a flexible elastic sheet, and the snap ring (450) is located above the elastic portion (440). The elastic portion (440) is sleeved on the outer side of the wheel column (430), and the snap ring (450) is positioned above the elastic portion (440). The elastic portion (440) is positioned above the brake lever (370).

10. The energy-saving and environmentally friendly thin rainproof roof gravity ventilator according to claim 8, characterized in that: The wind resistance tube (360) is configured as a perfect circular tube, and a corner material block (363) is integrally bonded to the oblique lower portion of the wind resistance tube (360), and the corner material block (363) is bonded to the inner wall of the wind wheel track seat (320).

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