WO2015070768A1 - 自动防雨通风器 - Google Patents

自动防雨通风器 Download PDF

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Publication number
WO2015070768A1
WO2015070768A1 PCT/CN2014/090961 CN2014090961W WO2015070768A1 WO 2015070768 A1 WO2015070768 A1 WO 2015070768A1 CN 2014090961 W CN2014090961 W CN 2014090961W WO 2015070768 A1 WO2015070768 A1 WO 2015070768A1
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Prior art keywords
plate
flashing
shaped
air outlet
bracket
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PCT/CN2014/090961
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English (en)
French (fr)
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单连勤
单连勇
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单连勤
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Publication of WO2015070768A1 publication Critical patent/WO2015070768A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1453—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cables, e.g. bowden cables

Definitions

  • the invention relates to a roof small single natural ventilation device, in particular to an automatic rainproof ventilator.
  • rotary unpowered hoods are often used in construction applications. With the popularity of the product, the product highlights a variety of application technical issues. Mainly: 1. The hood is rotated to give people the power ventilation illusion. In fact, the product still belongs to the natural ventilation device that is not sheltered from the wind. The ventilation is greatly affected by natural factors.
  • the rotary automatic rain ventilator has a small effective ventilation area and a large ventilation resistance coefficient. , so that the product's ventilation capacity is low; 2, long-term continuous rotation will inevitably occur sports damage, short service life; 3, product and roof installation often leaks; 4, the product can not close the insulation.
  • the technical problem to be solved by the invention is to provide an automatic rainproof ventilator, the product has the function of adjusting the rain and snow with the natural wind, the product ventilation is not affected by the external wind, and the ventilation effect is good, and It can be closed to reduce the heat loss of building ventilation, the manufacturing process is simple and low in cost, and the service life is long.
  • the invention relates to an automatic rainproof ventilator, comprising a structural bracket, wherein a curved outer guard plate is symmetrically arranged on both sides of the structural bracket, and a water groove is arranged at a bottom end of the outer guard plate on both sides of the structural bracket, and the structural bracket is arranged An end plate is arranged at both ends, and an air inlet and an air outlet are respectively formed between the bottom of the structural bracket and the outer guard on both sides, and the air outlet and the air outlet are respectively characterized by:
  • the V-shaped flashing is disposed in the middle of the structural bracket, and the width thereof is greater than the width of the air inlet and the air outlet, and the two ends of the V-shaped flashing are respectively led out by the end plate;
  • a drain port which is disposed on the end plate and corresponding to the outlet of the end plate of the V-shaped flashing plate, for extracting the V-shaped flashing plate to realize drainage;
  • the windshield is hinged at the upper end of the structural bracket corresponding to the air outlet, and is used for controlling the switch of the air outlet.
  • the air outlet opening degree can be automatically adjusted according to the wind swing to achieve natural adjustment of the rain and snow repelling capability.
  • the gutter is integral with the outer fender for ease of installation.
  • the V-shaped flashing is symmetrically provided with flanges on both sides for increasing the strength of the V-shaped flashing.
  • the V-shaped flashing has a central V-shaped angle of 100-130 degrees.
  • the inside of the structural bracket forms two symmetrical S-shaped exhaust passages through the V-shaped flashing and the curved outer shields on both sides.
  • a middle portion of the main bracket at both ends of the structural bracket is provided with a M-shaped flashing plate supporting beam, and the V-shaped flashing plate is matched with the central shape of the flashing plate supporting beam and fixed to the flashing plate. Support the middle of the beam.
  • an arc-shaped support beam for fixing the curved outer shield is symmetrically disposed on both sides of the main bracket, and the two ends of the flashing support beam are fixed on the curved support beam.
  • the windshield comprises a rectangular frame welded by a profile and a cover plate fixed on the rectangular frame, wherein the central ends of the rectangular frame are respectively hinged on the structural bracket by a screw, and the rectangular frame and the structural bracket are located on the screw Torsion springs are respectively disposed between the windshields under the action of the torsion springs, and are used for realizing automatic opening and resetting after the windshield is closed.
  • a drawstring is connected to the middle of the windshield end, and at least one pulley is disposed on the middle side of the structural bracket. The lower end of the drawstring is introduced into the air inlet through the pulley for controlling the closing of the windshield.
  • the windshield can be automatically adjusted by the windshield to adjust the opening of the air outlet, so that it has the function of automatic rainwater backflow. Therefore, it is not necessary to reduce the size of the air outlet to strengthen the rainwater intrusion measures, compared with the traditional ventilation cap.
  • the size of the air inlet and the air outlet are greatly increased, and the product has a large effective ventilation area, and the product has good ventilation effect.
  • the V-shaped flashing plate provided in the middle of the structural bracket and the curved outer protective plates on both sides can form two symmetrical S-shaped exhaust passages, so the ventilation resistance of the product is small, and there is no need to worry about weather changes during ventilation, ventilation capacity Strong.
  • the air vent can be completely closed when the windshield is in a horizontal state, and a relatively closed space can be formed after the windshield is closed, when there is bad weather, The function of preventing rain and snow from instilling can reduce the heat loss of the building.
  • the product manufacturing process is simple, the cost is low, the service life is long, and the application is popular.
  • Figure 1 is a schematic view showing the structure of the present invention after the front end plate is removed.
  • Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1;
  • Fig. 3 is an enlarged view of a portion I of Fig. 2;
  • structural bracket 1 structural bracket 1, gutter 2, outer fender 3, end plate 4, drain 401, V-shaped flashing 5, flange 501, V-shaped drain end 502, exhaust vent 6, windshield 7 , rectangular frame 701, cover plate 702, air inlet 8, main bracket 9, column 901, crossbar 902, flashing support beam 903, curved support beam 904, upper horizontal tube 905, connecting beam 10, exhaust passage 11 , pull cord 12, pulley 13, torsion spring 14, screw 15, bushing 16.
  • the automatic rainproof ventilator has a structural bracket 1 which includes two main brackets 9 of the same structure, and a plurality of symmetrical connections between the two main brackets 9 Connect the beam 10.
  • the main bracket 9 includes two vertically arranged pillars 901.
  • a crossbar 902 is connected between the two pillars 901, and a flashing plate support beam 903 having an M shape is arranged in the middle of the main bracket 9 in the main bracket 9
  • Two curved support beams 904 for fixing the curved outer shields 3 are symmetrically disposed on the two sides, and upper cross tubes 905 are fixed between the upper ends of the two curved support beams 904, and the flashing support beams 903 are two
  • the end is fixed on the curved support beam 904, and the upper ends of the two uprights 901 are fixedly supported at the corners on both sides of the flashing support beam 903.
  • the connecting beams 10 are four and symmetrically arranged at the upper ends of the curved support beams 904 and at the corners on both sides of the flashing support beam 903.
  • the curved outer shield 3 is symmetrically fixed on both sides of the structural bracket 1 , and the water furrow 2 is disposed at the bottom end of the outer shield 3 on both sides of the structural bracket 1 .
  • the drain 2 and the outer shield 3 is a one-piece structure folded from color steel plate for easy installation.
  • An end plate 4 is respectively fixed at two ends of the structural bracket 1, and an air inlet 8 and an air outlet 6 are respectively formed between the bottom of the structural bracket 1 and the outer guard 3 on the two sides, and are fixed in the middle of the structural bracket 1
  • the rainwater entering the tuyere 6 is drained from both ends.
  • the inside of the structural bracket 1 forms two symmetrical S-shaped exhaust passages 11 through the V-shaped flashing 5 and the curved outer shields 3 on both sides.
  • the V-shaped flashing 5 matches the shape of the middle of the flashing support beam 903 and is fixed to the flashing support beam 903 Central.
  • the V-shaped flashing 5 is symmetrically provided with a flange 501 on both sides for increasing the strength of the V-shaped flashing 5.
  • the V-shaped flashing 5 has a central V-shaped angle of 100-130 degrees.
  • a triangular drain port 401 is respectively disposed on the end plate 4 corresponding to the outlet portion of the V-shaped flashing plate 5, and two ends of the V-shaped flashing plate 5 are respectively provided with an integrated V-shaped drain end 502, the V-shaped portion
  • the flashing 5 is passed through the corresponding end plate drain 401 through the V-shaped drain ends 502 at both ends.
  • Both ends of the V-shaped flashing plate 5 are provided with a folded edge at the inner edge of the end plate 4 and are sealingly connected to the inner surface of the end plate 4 by a flange.
  • a windshield 7 is hinged at an upper end of the structural bracket 1 corresponding to the air outlet 6 for controlling the opening and closing of the air outlet 6.
  • the windshield 7 comprises a rectangular frame 701 welded by a profile and a cover plate 702 fixed on the rectangular frame 701.
  • the central ends of the rectangular frame 701 are respectively hinged on the structural support 1 by a screw 15, respectively, in the main support
  • a sleeve 16 is fixed at the corresponding upper screw 905 of the upper end of the upper end pipe 905.
  • the front end of the screw 15 is passed through the sleeve 16 and fixed to the rectangular frame 701 by a nut.
  • the screw frame 15 is located on the rectangular frame 701 and the structure.
  • a torsion spring 14 is respectively disposed between the main brackets 9 at both ends of the bracket 1.
  • the one end of the torsion spring 14 is clamped on the structural bracket, and the other end of the torsion spring 14 is clamped on the rectangular frame 701.
  • the windshield is in a vertical state under the action of the torsion spring 14, and can be oscillated with the wind under the action of the wind.
  • the torsion spring 14 can realize the automatic opening and resetting after the windshield 7 is closed.
  • a pull cord 12 is connected to the middle of the upper end of the windshield 7, and at least one pulley 13 is attached to the connecting beam 10 on the middle side of the structural bracket 1.
  • two pulleys are taken as an example, the drawstring
  • the lower end of the 12 is introduced between the two pulleys 13 through the air inlet 8 for manually controlling the closing of the windshield 7.
  • the cover plate 702 and the V-shaped flashing plate 5 of the windshield 7 are made of a color steel plate or a lighting plate.
  • the cover plate 702 of the shelter 7 and the V-shaped flashing 5 are made of a lighting panel to improve the overall lighting effect of the automatic rainproof ventilator.
  • the automatic rain ventilator is installed on the foundation of the building roof vent through the column 901.
  • the S-shaped exhaust passage 11 formed by the V-shaped flashing 5 and the curved outer guard 3 performs the flow guiding ventilation, and the ventilation resistance of the exhaust vent 6 can be reduced by the windshield 7 when the shelter 7 is ventilated.
  • the wind oscillates the wind becomes larger as the windshield 7 becomes more horizontal, and the smaller the opening degree of the air outlet 6, the natural adjustment of the rain and snow recharge ability.
  • the lower drawstring 12 is closed until the windshield 7 is rotated to a horizontal state to close the exhaust vent 6.
  • the ventilator is formed into a relatively closed space, and has the function of preventing rain and snow from instilling. Can reduce building heat loss.

Abstract

一种自动防雨通风器，包括结构支架（1），结构支架（1）两侧对称设有外护板（3），两端设有端板（4），结构支架（1）底部和上端分别形成进风口（8）和排风口（6），V型挡雨板（5）设在结构支架（1）内的中部且两端分别由端板（4）引出，避风板（7）铰接在结构支架（1）上对应排风口（6）处，能够随风摆动，自动调节排风口（6）的开度。该通风器具有自动防雨水倒灌功能，通风效果良好。

Description

自动防雨通风器 技术领域
本发明涉及一种屋面小型单体自然通风装置，特别涉及一种自动防雨通风器。
背景技术
作为小型单体通风产品，建筑应用多采用旋转式无动力风帽。随着该产品使用的普及，产品凸现多方面应用技术问题。主要有：1、风帽旋转给人以动力通风假象，实际上产品依然属于不避风型自然通风装置，通风受自然因素影响较大，旋转式自动防雨通风器有效通风面积小且通风阻力系数大，使得产品的通风能力低；2、长期不断旋转必然发生运动式损坏，使用寿命短；3、产品与屋面安装结合经常发生渗漏；4、产品不能关闭保温。
应用上还有很多屋面通风帽，由于缺乏避风防雨功能，为防止雨水随风倒灌，都是采取缩小排风口，加大通风绕流方式来增加防雨功能，导致通风面积小，通风阻力大，产品的自然通风效能低。
上述产品技术问题使得很多应用建筑通风不足，建筑内环境达不到通风要求，运动式损坏和经常发生渗漏使得用户不得不进行屋面改造，由此给企业造成极大的经济损失。
发明内容
本发明所要解决的技术问题是要提供一种自动防雨通风器，产品具有随自然风力调节防雨雪功能，产品通风不受外部风力影响，通风效果好，并且 能够关闭以减少建筑通风热量损失，制造工艺简单造价低，使用寿命长。
本发明涉及的一种自动防雨通风器，包括结构支架，在结构支架两侧对称设有弧形外护板，在结构支架两侧位于外护板的底端设有水沟，在结构支架两端设有端板，结构支架底部和上端位于两侧的外护板之间分别形成进风口和排风口，其特征在于：
V型挡雨板，其设在结构支架内的中部，其宽度大于所述进风口和排风口的宽度，该V型挡雨板的两端分别由端板引出；
排水口，其设在端板上且对应所述V型挡雨板两端由端板的引出处，用于引出所述V型挡雨板实现排水；
避风板，铰接在结构支架的上端对应排风口处，用于控制排风口的开关。
作为进一步优选，所述的避风板处于垂直的通风状态时能够随风摆动自动调节排风口开度，以实现自然调节防雨雪倒灌能力。
作为进一步优选，所述的水沟与外护板为一体，以便于安装。
作为进一步优选，所述V型挡雨板两侧对称设有翻边，用于增加V型挡雨板的强度。
作为进一步优选，所述V型挡雨板的中部V型夹角为100-130度。
作为进一步优选，所述结构支架内部通过V型挡雨板及两侧的弧形外护板形成对称的两个S型排风通道。
作为进一步优选，在结构支架两端的主支架内中部设有外形为M型的挡雨板支撑梁，所述V型挡雨板与挡雨板支撑梁的中部形状相匹配且固定在挡雨板支撑梁的中部。
作为进一步优选，在所述主支架两侧对称设有用于固定弧形外护板的弧形支撑梁，所述挡雨板支撑梁两端固定在弧形支撑梁上。
作为进一步优选，所述避风板包括由型材焊接而成的矩形框架和固定在矩形框架上的盖板，矩形框架两端中部分别通过螺杆铰接在结构支架上，在螺杆上位于矩形框架和结构支架之间分别套设有扭簧，所述避风板在扭簧的作用下处于垂直状态，用于实现避风板关闭后的自动打开复位。
作为进一步优选，在避风板上端中部连接有拉绳，在结构支架内中部一侧设有至少一个滑轮，所述拉绳下端穿过滑轮引入进风口内，用于控制避风板的关闭。
本发明的优点是：
1、通过避风板随风摆动能够自动调节排风口开度，从而具有自动防雨水倒灌功能，因此无需采取传统的减小排风口尺寸来加强防雨水倒灌措施，与传统的通风帽相比大大增加了进风口和排风口的尺寸，保证了产品具有较大的有效通风面积，产品通风效果好。
2、通过结构支架内中部设置的V型挡雨板与两侧的弧形外护板能够形成对称的两个S型排风通道，因此产品通风阻力小，通风时无需担心天气变化，通风能力强。
3、由于避风板铰接在结构支架的上端对应排风口处，避风板处于水平状态时可将排风口完全关闭，避风板关闭后能够形成一个相对封闭的空间，当遇到恶劣天气时具有防止雨雪倒灌的功能，能够减少建筑热量损失。
4、产品制造工艺简单，造价低，使用寿命长，易于应用普及。
附图说明：
图1是本发明去掉前面端板后的结构示意图。
图2是图1的A-A剖视图。
图3是图2的I部放大图。
图中：结构支架1，水沟2，外护板3，端板4，排水口401，V型挡雨板5，翻边501，V型排水端头502，排风口6，避风板7，矩形框架701，盖板702，进风口8，主支架9，立柱901，横杆902，挡雨板支撑梁903，弧形支撑梁904，上横管905，连接梁10，排风通道11，拉绳12，滑轮13，扭簧14，螺杆15，轴套16。
具体实施方式
如图1-图3所示，该自动防雨通风器有一个结构支架1，所述结构支架包括二个结构相同的主支架9，在二个主支架9之间两侧对称连接有多根连接梁10。所述主支架9包括二根垂直布置的立柱901，二根立柱901之间连接有横杆902，在主支架9内中部设有外形为M型的挡雨板支撑梁903，在主支架9两侧对称设有两个用于固定弧形外护板3的弧形支撑梁904，两个弧形支撑梁904上端之间固接有上横管905，所述挡雨板支撑梁903两端固定在弧形支撑梁904上，二根立柱901的上端分别固定支撑在挡雨板支撑梁903两侧的拐角处。作为优选，所述连接梁10为四根且对称布置在弧形支撑梁904的上端和挡雨板支撑梁903两侧的拐角处。
在结构支架1两侧对称固定有所述弧形外护板3，在结构支架1两侧位于外护板3的底端设有水沟2，作为优选，所述水沟2与外护板3是由彩钢板折成的一体式结构，以便于安装。在结构支架1的两端分别固定有端板4，结构支架1底部和上端位于两侧的外护板3之间分别形成一个进风口8和一个排风口6，在结构支架1内中部固定有V型挡雨板5，V型挡雨板5的宽度大于进风口8和排风口6的宽度，V型挡雨板5的两端分别由端板4引出，用于接住由排风口6进入的雨水并由两端排走。所述结构支架1内部通过V型挡雨板5及两侧的弧形外护板3形成对称的两个S型排风通道11。所述V型挡雨板5与挡雨板支撑梁903的中部形状相匹配且固定在挡雨板支撑梁903 的中部。
作为优选，所述V型挡雨板5两侧对称设有翻边501，用于增加V型挡雨板5的强度。作为优选，所述V型挡雨板5的中部V型夹角为100-130度。
在端板4上对应所述的V型挡雨板5引出处分别设有三角形排水口401，V型挡雨板5的两端分别设有一体的V型排水端头502，所述V型挡雨板5通过两端的V型排水端头502分别由对应的端板排水口401穿出。V型挡雨板5两端位于端板4内侧边沿设有折边且通过折边与端板4内表面密封连接。
在结构支架1上端对应排风口6处铰接有避风板7，用于控制排风口6的开关。所述避风板7处于垂直状态时排风口6完全打开，避风板7处于水平状态时可将排风口6完全关闭。作为优选，所述避风板7包括由型材焊接而成的矩形框架701和固定在矩形框架701上的盖板702，矩形框架701两端中部分别通过螺杆15铰接在结构支架1上，在主支架9上端的上横管905内对应螺杆15处固定有轴套16，所述螺杆15前端由轴套16内穿过并通过螺母与矩形框架701固接，在螺杆15上位于矩形框架701和结构支架1两端的主支架9之间分别套设有扭簧14，扭簧14一端卡在结构支架上，扭簧14另一端卡在矩形框架701上。所述避风板在扭簧14的作用下处于垂直状态，同时在风力的作用下能够随风摆动，通过扭簧14能够实现避风板7关闭后的自动打开复位。
在避风板7的上端中部连接有拉绳12，在结构支架1内中部一侧的连接梁10上安装有至少一个滑轮13，作为优选，本实施例以二个滑轮为例，所述拉绳12下端由二个滑轮13之间穿过引入进风口8内，用于手动控制避风板7的关闭。
所述避风板7的盖板702和V型挡雨板5的材质为彩钢板或采光板。作为一种优选，避风板7的盖板702和V型挡雨板5的材质为采光板，以提高该自动防雨通风器的整体采光效果。
安装时，将该自动防雨通风器通过立柱901安装在建筑屋面通风口处的基础上。工作时，通过V型挡雨板5与弧形外护板3形成的S型排风通道11进行导流通风，通过避风板7能够减小排风口6的通风阻力，避风板7通风时随风摆动，风力越大避风板7越趋于水平，与排风口6的开度越小，自然调节防雨雪倒灌能力。当遇到恶劣天气时，下拽拉绳12直至避风板7旋转至水平状态将排风口6关闭，避风板7关闭后使该通风器形成一个相对封闭的空间，具有防止雨雪倒灌的功能，能够减少建筑热量损失。
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的图例。

Claims (10)

  1. 一种自动防雨通风器，包括结构支架，在结构支架两侧对称设有弧形外护板，在结构支架两侧位于外护板的底端设有水沟，在结构支架两端设有端板，结构支架底部和上端位于两侧的外护板之间分别形成进风口和排风口，其特征在于：
    V型挡雨板，其设在结构支架内的中部，其宽度大于所述进风口和排风口的宽度，该V型挡雨板的两端分别由端板引出；
    排水口，其设在端板上且对应所述V型挡雨板两端由端板的引出处，用于引出所述V型挡雨板实现排水；
    避风板，铰接在结构支架的上端对应排风口处，用于控制排风口的开关。
  2. 根据权利要求1所述的自动防雨通风器，其特征在于：所述的避风板处于垂直的通风状态时能够随风摆动自动调节排风口开度，以实现自然调节防雨雪倒灌能力。
  3. 根据权利要求1所述的自动防雨通风器，其特征在于：所述的水沟与外护板为一体。
  4. 根据权利要求1所述的自动防雨通风器，其特征在于：所述V型挡雨板两侧对称设有翻边，用于增加V型挡雨板的强度。
  5. 根据权利要求1或4所述的自动防雨通风器，其特征在于：所述V型挡雨板的中部V型夹角为100-130度。
  6. 根据权利要求1或4所述的自动防雨通风器，其特征在于：所述结构支架内部通过V型挡雨板及两侧的弧形外护板形成对称的两个S型排风通道。
  7. 根据权利要求1所述的自动防雨通风器，其特征在于：在结构支架两 端的主支架内中部设有外形为M型的挡雨板支撑梁，所述V型挡雨板与挡雨板支撑梁的中部形状相匹配且固定在挡雨板支撑梁的中部。
  8. 根据权利要求7所述的自动防雨通风器，其特征在于：在所述主支架两侧对称设有用于固定弧形外护板的弧形支撑梁，所述挡雨板支撑梁两端固定在弧形支撑梁上。
  9. 根据权利要求1或2所述的自动防雨通风器，其特征在于：所述避风板包括由型材焊接而成的矩形框架和固定在矩形框架上的盖板，矩形框架两端中部分别通过螺杆铰接在结构支架上，在螺杆上位于矩形框架和结构支架之间分别套设有扭簧，所述避风板在扭簧的作用下处于垂直状态，用于实现避风板关闭后的自动打开复位。
  10. 根据权利要求9所述的自动防雨通风器，其特征在于：在避风板上端中部连接有拉绳，在结构支架内中部一侧设有至少一个滑轮，所述拉绳下端穿过滑轮引入进风口内，用于控制避风板的关闭。
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