Valve with sealing performance

The utility model discloses a valve with sealing performance, this valve include valve body, case, valve rod and rim plate, and the case is arranged in the valve body inner chamber, and the rim plate is located the valve body outside, valve rod and valve body be equipped with the screw thread section respectively, the valve rod passes through screw -thread fit with the valve body, the bottom and the case fixed connection of valve rod, the top and the rim plate fixed connection of valve rod, the case be cylindric, and the bottom of case is equipped with the first recess of arc, the inboard bottom surface of valve body is equipped with the second recess, and is equipped with the arc arch in the second recess, the bottom and the second groove phase adaptation of case, the protruding and first groove phase adaptation of arc. This valve has good leakproofness, and long service life. 本实用新型公开了种具有密封性能的阀门，该阀门包括阀体、阀芯、阀杆和轮盘，阀芯位于阀体内腔中，轮盘位于阀体外侧；所述的阀杆与阀体分别设有螺纹段，阀杆与阀体通过螺纹配合；阀杆的底端与阀芯固定连接，阀杆的顶端与轮盘固定连接；所述的阀芯呈圆柱状，且阀芯的底部设有弧形第凹槽，