发明名称 |
FLOW REGULATING VALVE |
摘要 |
Disclosed in the present invention is a flow regulating valve comprises a valve seat (1) and a casing (2). A motor (21) provided inside the casing (2) is connected to a screw rod (3) through the output shaft of the motor. The screw rod is connected to a screw nut (4) connecting with a valve rod (5) and the inner part of the valve rod (5) is provided with a mounting groove (51). The screw nut (4) is in clearance fit with the mounting groove (51) along the radical direction, and the inner wall of the mounting groove (51) is provided with an annular limiting groove (52). A limiting element (53) provided in the annular limiting groove (52) limits the position along the axial direction of the screw nut (4) and is in clearance fit with the outside of the screw nut. On one hand, the configuration design of the flow regulating valve is able to eliminate the coaxial degree error between the screw rod and the screw nut generated during the processing and assembling of components and parts, on the other hand, it is able to improve the reliability of the axial limitation of the screw nut. |
申请公布号 |
EP2725270(A1) |
申请公布日期 |
2014.04.30 |
申请号 |
EP20120805233 |
申请日期 |
2012.06.26 |
申请人 |
ZHEJIANG SANHUA CO., LTD. |
发明人 |
LV, MING;WEI, XIANRANG;WANG, QINGYONG |
分类号 |
F16K3/30;F16K31/50;F16K31/53 |
主分类号 |
F16K3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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