Adjusting air door for fan
A technology for adjusting dampers and fans. It is applied to the components of pumping devices for elastic fluids, mechanical equipment, machines/engines, etc. It can solve the problems of dust pollution and troublesome damper cleaning, and achieve the effect of reducing the probability of pollution.
Inactive Publication Date: 2015-02-18
CHONGQING SHUAICHANG MACHINE MFG
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide an adjustable damper for fans that is easy to clean and reduces the probability of pollution in view of the disadvantages of the existing damper that it is troublesome to clean and is easily polluted by dust.
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Embodiment Construction
[0016] Such as figure 1 , figure 2 As shown, the present invention is used for adjusting the damper of the fan, including the first damper, the second damper, the third damper, the first shaft 1, the second shaft 2, the third shaft 3 and the outer shaft sleeve 4, the first shaft 1, Both the second shaft 2 and the third shaft 3 are internally hollow shaft cylinders; the outer shaft sleeve 4 is axially provided with cavities for accommodating the first shaft 1, the second shaft 2 and the third shaft 3, and the outer shaft sleeve 4 Three through holes are respectively provided at both ends, and the ends of the first shaft 1, the second shaft 2, and the third shaft 3 pass through the through holes at both ends of the outer sleeve 4 respectively, and are placed in the through holes. The first shaft 1, the third shaft The second shaft 2 and the third shaft 3 are located in the outer shaft sleeve 4 in parallel; the first damper includes a rectangular frame 5 and a gauze 6, the cros...
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The invention discloses an adjusting air door for a fan. The adjusting air door comprises a first air door, a second air door, a third air door, a first shaft, a second shaft, a third shaft and an outer shaft sleeve, wherein a convex table which is rotationally arranged at the end parts of the first shaft, the second shaft and the third shaft in a lapping way is arranged at each of the two ends of the outer shaft sleeve; the first air door comprises a rectangular frame and a gauze net; the cross sections of both the first shaft and the second shaft are L-shaped; the first shaft is fixed to the end part of the rectangular frame; the periphery of the gauze net is fixed to the inner ring of the rectangular frame; a first L-shaped step which is sunk is arranged at the periphery of the rectangular frame; the second air door comprises a rectangular plate; the end part of the rectangular plate is fixed to the second shaft; a second L-shaped step buckled with the first L-shaped step of the rectangular frame is arranged on the inner ring of the rectangular plate; the third air door comprises roller shutter cloth; one end of the roller shutter cloth is wound on the third shaft. The defects that the current air door is troublesome in cleaning and is easily polluted by dust are overcome, the adjusting air door for the fan is simple in cleaning, and the chance that the adjusting air door is polluted is reduced.
Description
technical field [0001] The invention belongs to the field of ventilation devices, and in particular relates to an air damper for a fan. Background technique [0002] Damper refers to the device that adjusts the wind direction and air volume during the ventilation process. The damper is mostly used in mines, factories, laboratories and other places that need ventilation. Drive the rotating shaft to rotate the rectangular plate, thereby driving the rectangular plate to adjust the size of the opening and restrict the flow of the wind direction while rotating; however, the existing damper only rotates and opens when in use, and closes when it is not open, and cannot air when it is closed. Fluency; In addition, when not in use, the damper is easily polluted by dust, resulting in troublesome cleaning. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a regulating damper for a fan that is easy to clean and reduces the pr...
Claims
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IPC IPC(8): F04D27/00
CPCF04D27/0246F04D29/703
Inventor 丁丽霞
Owner CHONGQING SHUAICHANG MACHINE MFG