Plastic material diaphragm valve that protection diaphragm lost efficacy

• Main Authors: YE BOTONG, LU BING, XU JINCHUN
• Format: Patent
• Language: Chinese; English
• Published: 17.07.2018
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses a plastic material diaphragm valve that protection diaphragm lost efficacy, valve body, lid including having the runner are established the valve gap of valve body and areset up between valve gap and valve body and by the diaphragm of both centre grippings, be equipped with the valve rod on the valve gap, it realizes reciprocating motion's driving piece to be equippedwith the drive valve rod on the valve gap along the axial, the diaphragm lower surface forms a deformation portion towards sunken setting of valve rod direction, be equipped with the connecting rod between valve rod and the deformation portion, the valve rod to deformation portion apply when the effort of runner direction, deformation portion can take place turn over and roll over and be sealed towards the runner direction the runner, when the valve rod loses the effort of applying deformation portion, deformation can take place and reset for deformation portion under the drive of valve rod. The utility model has the a