The present invention provides a pressure relief valve, diaphragm diaphragm retainer rod through the remains in the diaphragm, the diaphragm is clamped between the body and the cover body, can fall in the seat, and is arranged at the middle part of the valve shaft, the valve seat fixed in the body, in the central part of the opening end of the valve hole. The valve shaft is detachably connected to the diaphragm rod, the other end of the guide hole is slidably fitted on the side of the main body, the pressure relief valve, valve assembly (120) formed by the following parts: pre assembled seating parts (100), which is provided with a valve hole (111) and the seat (112); the guide member (106), the pressure in the valve seat member (100), and has a guide hole (105); and the valve shaft (114), which is provided with a valve (113) valve assembly (1. 20) in such a state is installed on the main body (34): namely, the valve shaft (114) at one end of the valve bore (111), and the outstanding valve shaft (114) and the other end is slidably fitted to the guide hole (105) in the state. Thus, the processing cost can be reduced and the assembly performance can be improved.
【技术实现步骤摘要】
【国外来华专利技术】
【技术保护点】
一种减压阀,包括:阀壳体(90),其通过将本体(34)和盖部(91)结合而构成;隔膜(93),其周缘部夹持在上述本体(34)与盖部(91)之间;隔膜杆(128),其通过隔膜保持件(125、127)保持在该隔膜(93)的中央部;阀轴(114),其一端部可装卸地连接于该隔膜杆(128),并且其另一端部可滑动地嵌合在引导孔(105)中,上述引导孔(105)设在上述本体(34)侧;和阀体(113),其设在上述阀轴(114)的中间部,可以落位在阀座(112)上,该阀座(112)固定配置在上述本体(34)内,并在中央部开设有阀孔(111),该阀轴(114)可移动地贯穿插入在该阀孔(11 ...
【技术特征摘要】
【国外来华专利技术】...
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