Improved air outlet of ventilating fan
An air outlet, fan fan technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of shedding, easy deformation, low strength of the outlet end, etc., to prevent shedding and increase the strength.
Pending Publication Date: 2019-05-10
SHANXI JULONG FAN & BLOWERS
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantage of welded steel bars is that the outlet end has low strength and is easy to deform. The deformation will cause air leakage or the soft cloth fan will fall off.
Method used
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Embodiment 1
[0017] image 3 It is a schematic diagram of the air outlet of the local fan improved in the present invention; Figure 4 yes image 3 The left view of the left side; an improved air outlet of a local fan in the present invention is characterized in that: the air outlet 1 is pressed with a circular ring 3 protruding outward.
Embodiment 2
[0019] The improved air outlet of the local fan described in Example 1 is characterized in that: the air outlet 1 is pressed with two circles of outwardly protruding rings 3 .
[0020] The invention increases the strength of the outlet end, and the outlet end is not easily deformed, thereby preventing air leakage and falling off of the soft air distribution tube.
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An improved air outlet of a ventilating fan is characterized in that a ring protruding outwards is pressed on the air outlet. The improved air outlet of the ventilating fan has the beneficial effectsthat the strength of the outlet end is enhanced, and the outlet end is not prone to deformation, so that air leakage and disengagement of a flexible air distribution barrel are prevented.
Description
technical field [0001] The invention relates to a mine ventilation device, in particular to an air outlet of a local fan. Background technique [0002] The outlet end of the press-in local fan fan needs to be connected to the air duct to transmit the wind force, and the soft cloth air duct inserted into the air outlet of the local fan must be tied firmly to ensure safe ventilation. [0003] The current manufacturing method is to weld steel bars at the outlet end to form a stop (such as figure 1 shown) to prevent slipping during binding. The disadvantage of welded steel bars is that the outlet end has low strength and is easy to deform. The deformation will cause air leakage or the soft air duct will fall off. Contents of the invention [0004] The object of the present invention is to provide an improved air outlet of a local fan in order to overcome the deficiencies of the prior art. [0005] In order to realize the above object, the technical scheme adopted by the pre...
Claims
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IPC IPC(8): F04D29/40
Inventor 畅飞李春萍李世龙吕存栓张娄勤宋长江
Owner SHANXI JULONG FAN & BLOWERS