Unpowered ventilation device
A power ventilation and ventilation duct technology, which is applied in ventilation systems, space heating and ventilation, and household heating, etc., can solve the problems of single ventilation mode without power hood, unsatisfactory air pulling effect, and complicated processing, etc. The effect of rainwater entering the room, easy to make and maintain, and low cost
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Embodiment 1
[0050] An unpowered ventilation device of this embodiment, such as Figure 1-7 As shown, it includes a wind catcher 5, a transmission rod 4, a ventilating blade 6, a ventilation duct 3, a support 2, a cover 1; the ventilation duct 3 is a quadrangular trellis shape with an opening at the top and bottom; the ventilation duct 3 The top is open and supports the covering object 1; the bottom of the covering object 1 is provided with a vertical transmission rod 4; the upper part of the transmission rod 4 is provided with a wind catcher 5 that extends to the outside of the ventilation duct 3; the lower part of the transmission rod 4 is provided with a wrapper inside the ventilation duct 3 Ventilation blade 6. Alternatively, a positioning support rod 41 is provided on the side of the covering 6 close to the air outlet of the ventilation duct 3, and the positioning support rod 41 and the transmission rod 4 are connected together by a bearing.
Embodiment 2
[0052] An unpowered ventilation device of this embodiment, such as Figure 8-13 As shown, it includes a wind catcher 5, a transmission rod 4, a ventilating blade 6, a ventilation duct 3, and a covering object 1; the covering object 1 is a glass fiber reinforced plastic cavity; the ventilation duct 3 is a quadrangular pyramid shape with openings at the top and bottom The top of the ventilation pipe 3 is open and supports the transparent glass fiber reinforced plastic cavity 1; the bottom of the glass fiber reinforced plastic cavity 1 is provided with a vertical transmission rod 4; the upper part of the transmission rod 4 is provided with a wind catcher 4 extending to the outside of the ventilation duct 3; the lower part of the transmission rod 4 A ventilating blade 6 wrapped inside the air duct 3 is provided.
Embodiment 3
[0054] An unpowered ventilation device of this embodiment, such as Figure 14-19 As shown, it includes a wind catcher 5, a transmission rod 4, a ventilation blade 6, a ventilation duct 3, and a covering object 1; the ventilation duct 3 is a cylindrical ventilation pipe; the covering object 1 is covered on the ventilation pipe 3 through a support 2 Above; the transmission rod 4 vertically penetrates the covering object 1; the upper part of the transmission rod 4 is connected to the wind catcher 5; the lower part of the transmission rod 4 is connected to the ventilating blade 6, and the transmission rod 4 is fixedly installed in the ventilation through the bearing on the supporting member 21 In the road 3, a rain cover 11 is provided on the transmission rod 4, and the rain cover 11 is located between the covering object 1 and the wind catcher 5.
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