Circular automatic inverted air valve
A damper and circular technology, applied in the field of circular backstop dampers, can solve problems such as poor exhaust air, only partial opening, and incompletely solve the problem of blade opening, so as to improve air outlet efficiency and simplify installation and preparation. The effect of craftsmanship
Inactive Publication Date: 2013-02-13
宜兴台玉环境工程设备有限公司
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Problems solved by technology
[0002] At present, the backstop dampers manufactured on the market are generally divided into two types, one is square, which constitutes the situation of shutters, by setting a number of square blades, which are movably connected to the square frame, and the opening and closing of the damper is controlled by the rotation of the blades. If it is applied to a circular air duct, a transition head needs to be added, which will inevitably lead to an increase in cost, so people have come up with a circular backstop damper, which can be easily installed on a circular air duct, but the existing circular air duct on the market Most of the backstop dampers are equipped with square blades on the circular damper body, which can only be partially opened when they are opened. Their structural essence is similar to that of the square backstop dampers. The shape of the blade has been improved, but the problem of blade opening has not been completely solved, and further improvement is needed
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[0012] A circular automatic backstop damper, including a disc-shaped damper body 001, the damper body 001 is installed on a circular air duct 002, the damper body 001 is spliced by two upper and lower blades (011, 012), and the two gears Each of the blades (011, 012) is provided with a rotating shaft 003, and the rotating shaft 003 is rotationally connected with the wall of the circular air duct 002. The upper blocking blade 011 is the upper half of the arc damper body, and the bottom is smaller than the bottom. Protruding part 111, the protruding part 111 is set at the center position, the bottom edge of the upper half of the arc damper body is smaller than the diameter of the damper body 001, and the lower blade 012 is the lower half of the arc damper body combined with the upper blade 011 , the upper part of which is a recessed part 121 matched with the raised part 111, and the rotating shaft 003 is provided with a reinforcing rib 004 connected with the upper and lower blo...
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A circular automatic inverted air valve comprises a disc-shaped air valve body, wherein the air valve body is mounted on a circular air pipe and is formed by splicing an upper blocking blade and a lower blocking blade; a rotating shaft is respectively arranged on the two blocking blades and is respectively rotationally connected with the wall of the circular air pipe; the upper blocking blade is a body of an upper half part of the circular arc-shaped air valve, and a bulge part smaller than the bottom edge of the upper blocking blade is arranged at the bottom of the upper blocking blade, and is arranged in a centre position; and the lower blocking blade spliced with the upper blocking blade is a body of an lower half part of the circular arc-shaped air valve, and a dent part is formed in the upper part of the lower blocking blade and is matched with the bulge part. According to the circular air valve body formed by splicing the arranged upper and lower blocking blades, the air-out efficiency is greatly improved, and the installation and manufacturing technologies are simplified.
Description
technical field [0001] The invention relates to a backstop damper on air duct equipment, in particular to a circular backstop damper. Background technique [0002] At present, the backstop dampers manufactured on the market are generally divided into two types, one is square, which constitutes the situation of shutters, by setting a number of square blades, which are movably connected to the square frame, and the opening and closing of the damper is controlled by the rotation of the blades. If it is applied to a circular air duct, a transition head needs to be added, which will inevitably lead to an increase in cost, so people have come up with a circular backstop damper, which can be easily installed on a circular air duct, but the existing circular air duct on the market Most of the backstop dampers are equipped with square blades on the circular damper body, which can only be partially opened when they are opened. Their structural essence is similar to that of the square ...
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IPC IPC(8): F16K15/03
Inventor 吴立升吕为蔡大峰
Owner 宜兴台玉环境工程设备有限公司