Containing cavity device suitable for high-pressure homogenizer

The containing cavity device comprises a valve body, a valve rod and a valve element, a conical cavity and a fluid channel are formed in the valve element, the valve rod is provided with a main body section, a stress section and a matching section, a conical protruding head is formed on the side, facing the conical cavity, of the matching section, the stress section of the valve rod is completely or partially located above an inner cavity, and the fluid channel is formed in the main body section. The matching section of the valve rod is located in the inner cavity. Through overall design of the structure of the containing cavity device, various defects of an existing structure are ingeniously overcome, and the containing cavity device has the advantages of being capable of bearing large pressure, good in treatment effect, low in machining requirement and manufacturing cost, high in productivity and the like. 本发明公开了适用于高压均质机的容腔装置，其包括阀体、阀杆、阀芯，阀芯上形成有锥形腔及流体通道，阀杆具有主体段、受力段以及配合段，配合段在面向锥形腔的一侧形成有锥形凸头，阀杆的受力段全部或部分地位于处于内腔