Described is a pneumatic valve having a housing (1) in which an air chamber (2) is formed having a supply opening (3) for supplying compressed air into the air chamber (2), a connection opening (4) for connecting the air chamber (2) to an air cushion, and a discharge opening (5) for discharging compressed air from the air chamber (2), an actuator (6) with a movable closure element (7) is arranged in the housing (1), the closure element (7) being formed with a plunger (11) which protrudes through the discharge opening (5) and forms a plate (11a) at its end protruding into the air chamber, on which plate a first sealing element (8) for closing the discharge opening (5) is arranged, and the closure element being formed with an elastic element (10; 10a) which presses said sealing element against the discharge opening (5) in the active state of the pneumatic valve, the actuator (6) being in the form of an SMA actuator, the actuator element (16) being designed, in the non-energized state, to bring the actuator element (13) into a first state in which it presses the plunger (11) against the supply opening (3), and the actuator element (16) being designed, in the non-energized state, to bring the actuator element (13) into a second state in which it presses the plunger (11) against the discharge opening (5). The actuator element (13) is designed to bring the actuating element (13) into a second state in which the actuating portion (14) does not exert any force on the plunger (11) in the energized state, the second sealing element (30; 31) is arranged in the air chamber (2) and acts as a check valve.
所描述的是一种气动阀,该气动阀具有壳体(1),在该壳体中形成有空气腔室(2),该空气腔室具有用于将压缩空气供应到空气腔室(2)中的供应开口(3)、用于将空气腔室(2)连接至气垫的连接开口(4)、以及用于从空气腔室(2)排放压缩空气的排放开口(5),其中,在壳体(1)中布置有具有可移动的封闭元件(7)的致动器(6),其中,封闭元件(7)形成有柱塞(11),该柱塞突出穿过排放开口(5)并且在其突出到空气腔室中的端部处形成板(11a),在该板上布置有用于封闭排放开口(5)的第一密封元件(8),并且封闭元件形成有弹性元件(10;10a),该弹性元件在气动阀的启用状态下将所述密封元件压靠在排放开口(5)上,其中,致动器(6)呈SMA致动器的形式,其中,致动器元件(16)被设计成在未通电状态下使致动元件(13)进入第一状态,在该第一状态下,致动元件将柱塞(11)压靠在供应开口(3)上,并且致动器元件被设计成在通电状态下使致动元件(13)进入第二状态,在该第二状态下,致动部(14)不对柱塞(11)施加任何力,其中,第二密封元件(30;31)被布置在空气腔室(2)中并且用作止回阀。
Pneumatic valve
气动阀
2024-10-25
Patent
Electronic Resource
Chinese
NTIS | 1978
|