An anti-blocking pneumatic control limit valve of a dumper comprises an adjusting bolt and a nut and is characterized in that the bolt is locked in a screw hole of a piston rod through the nut, the piston rod is installed in a guide cavity of a guide end cover, the guide end cover is installed on a valve body, and a sealing valve element and a spring are arranged in the valve body. The sealing valve element and the spring are limited in an inner cavity of the valve body through a guide end cover and a blank cap which are installed on the valve body, and the sealing face of the sealing valve element is tightly attached to the end face of the end cover under the elastic force of the spring. The valve core is in clearance fit in the valve body, the valve core slides up and down in an inner cavity of the valve body, the sealing valve core abuts against the exhaust valve cover under the thrust of the spring, the exhaust port is closed, and the air inlet and the air outlet are formed in two ports of the same pressure container; when the piston rod is subjected to external thrust, the valve core is pushed open to exhaust the pressure of the inner cavity of the valve body immediately; the invention aims to achieve the purposes of high exhaust reaction speed, no influence of elasticity of sealing elements and clamping prevention, reduction of the number of the sealing elements and guarantee of sensitive action of the valve.
一种自卸车防卡气控限位阀,包括调节螺栓和螺母,其特征在于螺栓通过螺母锁紧在活塞杆的螺孔内,活塞杆安装在导向端盖的导向腔内,导向端盖安装在阀体,阀体内设有密封阀芯和弹簧,密封阀芯和弹簧通过安装在阀体上的导向端盖和闷盖限制在阀体内腔内,密封阀芯受到弹簧的弹力使密封面紧贴在端盖端面上。阀芯在阀体内为间隙配合,阀芯作在阀体内腔作上下位移滑动,受弹簧的推力,密封阀芯紧靠在排气阀盖,关闭排气口,进气口和出气口同在一个压力容器上的二个口;当活塞杆受到外界推力时,阀芯推开立即对阀体内腔压力进行排气;本发明的目的是排气反应速度快,不受密封件弹性影响而放卡,减少密封件数量,确保了阀动作灵敏。
Dumper anti-blocking pneumatic control limit valve
一种自卸车防卡气控限位阀
2022-04-12
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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