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进口高速负压风机哪家品牌好

进口高速负压风机Product description:

The utility model comprises a fan frame, a shutter frame and a limiting device, wherein the fan frame is provided with a groove, the lower groove wall of the groove is provided with a concave part, the upper groove wall of the groove is provided with a first jack and a first avoidance groove, the interior of the shutter frame is provided with a shutter, the bottom surface of the shutter frame is fixedly provided with a convex part, and the upper surface of the shutter frame is provided with a second jack and a second avoidance groove, The lower end face of the second jack is provided with a limit slot. The limit device includes a knob, a compression spring and a rotary shaft. The rotary shaft clearance is arranged in the first jack and the second jack. The bottom of the rotary shaft is fixedly provided with a limit pin. The knob is horizontally arranged at the upper end of the rotary shaft, and the compression spring is arranged on the rotary shaft. In a word, the shutter and the main body of the negative pressure fan become detachable. When the parts inside the negative pressure fan frame need to be cleaned or maintained, just remove the shutter, which saves time and effort and is very convenient.

进口高速负压风机characteristic:

In order to quickly discharge the indoor hot gas out of the room, the negative pressure fan is often used to draw out the indoor air, and the external air automatically enters the room under atmospheric pressure, forming a directional and stable airflow belt in the space, so as to achieve the purpose of cooling. In order to filter the dust in the air, the side near the room of the negative pressure fan is often fixed with a dust-proof net, in order to prevent the water from entering the negative pressure fan when it rains, Louvers are often fixed on the side of the negative pressure fan close to the outdoor. Because the dust screen and louver are designed as a whole with the negative pressure fan frame, when the parts inside the negative pressure fan frame, such as fan blades and motors, need to be cleaned or maintained, the whole negative pressure fan frame needs to be disassembled, which is time-consuming, laborious and inconvenient.

进口高速负压风机Principle:

The limiting device comprises a knob, a compression spring and a rotary shaft, wherein the clearance of the rotary shaft is arranged in the first jack and the second jack, the bottom of the rotary shaft is fixedly provided with a limiting pin, the limiting pin is arranged symmetrically about the axis of the rotary shaft, the length of the limiting pin is greater than the diameter of the second jack and less than the length of the first avoidance slot, the limiting pin is located inside the limiting slot and the diameter of the limiting pin is less than the slot width of the limiting slot, The knob is horizontally arranged on the upper end of the rotary shaft, and the compression spring is threaded on the rotary shaft. The compression spring is in compression state, and the upper end of the compression spring is limited through the bottom surface of the knob, and the lower end of the compression spring is limited through the upper surface of the fan frame.

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