| CPC F16K 7/17 (2013.01) | 6 Claims |
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1. An overpressure shutdown device comprising:
a main body (1) having an inlet chamber (11) and an outlet chamber (12) defined therein, a communication hole (13) defined between the inlet chamber (11) and the outlet chamber (12), the main body (1) having a combined hole (14) which communicates with the outlet chamber (12), a circular groove (15) recessed around the combined hole (14) on the outer side of the main body (1), and
a stop assembly (2) including an elastic diaphragm (21), a rod (22), a valve member (23), a return button (24), and a cover (25), the cover (25) and the elastic diaphragm (21) located in the circular groove (15), the elastic diaphragm (21) partially located between the circular groove (15) and the cover (25), the cover (25) including a cover opening (251), the return button (24) at least partially located inside the cover (25) and corresponding to the cover opening (251), the valve member (23) located at a position where the inlet chamber (11) is located corresponding to the communication hole (13), the rod (22) extending through the elastic diaphragm (21), and the rod (22) connected between the return button (24) and the valve member (23), the rod (22) comprising a connected rod portion (221) and a ring piece portion (222), and a clamp (26) screwed onto the rod portion (221), with the elastic diaphragm (21) partially clamped between the ring piece portion (222) and the clamp (26).
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