Manually-controlled positive and negative pressure pump comprehensive rescue device
A positive and negative pressure, manual control technology, applied in the direction of suction equipment, etc., can solve problems such as being useless, difficult to find power or other energy sources, etc., to achieve the effect of easy portability, light weight and stable performance
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[0022] Specific implementation method
[0023] Such as figure 1 As shown, the present invention provides a hand-controlled positive and negative pressure pump comprehensive rescue device, including a pump body 3, a pump cover 8, an inlet duct 9, an outlet duct 11, etc. The pump body 3 is in the shape of a spindle, and the upper part of the inner wall of the pump body 3 and The lower part is connected to a tapered bracket 6 to support the contraction and relaxation power of the pump body. The wall thickness of the taper is controlled within 2 to 35 mm, which constitutes a complete spindle-shaped streamlined internal cavity of the pump and the auxiliary pump internal cavity. The cavity wall is smooth and the streamline is smooth. A pump cover 8 is installed on the top of the pump body 3, an inflow valve 4 is provided at the lower end of the pump cover 8, and the inflow valve 4 is connected to the inlet conduit 9. An auxiliary pump 10 supporting the conical structure of the pump ...
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