在液压系统中,由于压力表开关的开与关都需人去控制,往往处于只开不关的状态,致使压力表长期处于工作状态,液压系统中的振功和压力表卷簧的疲劳都会使压力表失灵。针对这种情况,我们设计了一种按钮式压力表开关(附图)。开关由阀体、阀芯、弹簧和挡板组成。阀芯与阀体之间采用间隙密封。平时,压力表通油池。需要测量时,按下阀芯即可。当测压结束时,阀 In the hydraulic system, because the pressure gauge switch on and off are people to control, often in the open only does not turn off the state, resulting in long-term pressure gauge in working condition, the hydraulic system vibrator and the pressure gauge coil spring will fatigue The pressure gauge failure. In view of this situation, we designed a button-type pressure gauge switch (with photos). Switch by the valve body, spool, springs and baffles. Spool between the spool and the body sealed. Usually, the pressure gauge through the oil pool. Need to measure, press the spool can be. When pressure measurement is over, the valve