Valve element assembly of overflow safety valve
A spool component and safety valve technology, which is applied in mining equipment, earthwork drilling, pillars/supports, etc., can solve the problems of small drainage flow, unsatisfactory sealing effect of spool and valve sleeve, and large flow loss.
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[0036] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
[0037] Such as Figure 1 to Figure 7 As shown, it is a kind of overflow safety valve using the spool assembly of the present invention, the overflow safety valve includes a valve housing 3 with a liquid discharge hole 31, a liquid inlet joint 8 with a liquid inlet hole and a reset mechanism, the liquid inlet hole The unloading chamber inside the valve housing 3 communicates with the drain hole 31 and the three form an overflow channel of the safety valve. The overflow safety valve also includes the spool assembly of the present invention, the spool assembly of the present invention is movably arr...
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