Diaphragm combination structure for pressure gauge

The present invention relates to a diaphragm combining structure of pressure gauge. On the pressure gauge seat and pressure gauge head the correspondent ring curved groove is made respectively, the curvalure of two ring curved grooves is correspondent to the oil seal ring of peripheral side of diaphragm of pressure gauge and every ring curved groove can be connected with mounting surface of pressure gauge seat and pressure gauge head by utilizing curved angle. The adoption of said invention can make the oil seal ring of pressure gauge diaphragm be forced uniformly and stably, and the curved angle of every ring curved groove can protect the oil seal ring against scuffing. 本发明涉及一种压力表的膜片结合构造，其主要目的是消除以往压力表膜片容易变形、滑动及受损的问题。本发明在压力表座及表头上制作相对应的环状弧槽，二环状弧槽曲率对应压力表膜片周边侧的油封环，且各环状弧槽运用弧角连接压力表座及表头的设置面。采用上述结构，本发明压力表膜片的油封环可以受到平均、稳定的压迫，且该环状弧槽会在压迫的同时导引油封环，而各环状弧槽的连接弧角更能防止刮伤油封环，所以本发明确实是一种压迫稳定、密封确实的压力表的膜片结合构造。