VALVE NEEDLE COMPONENT, AND FLOW REGULATING VALVE HAVING SAME

WIPO Patent Application WO/2023/066116

A1

Provided in the present application are a valve needle component and a flow regulating valve having same. The valve needle component comprises: a screw, wherein the screw comprises a first rod segment, a second rod segment and a third rod segment, which are connected in sequence, the outer diameter of the first rod segment being greater than that of the second rod segment, and the outer diameter of the second rod segment being greater than that of the third rod segment; a bearing, which is sleeved on the second rod segment; and a bushing, which is sleeved on the third rod segment, wherein the bushing is welded to the third rod segment, and two end faces of an inner ring of the bearing respectively abut against an end face of the first rod segment and an end face of the bushing. By means of the technical solution provided in the present application, the prior art problems of an inner retainer of a bearing being deformed due to a relatively large amount of stress on an inner ring of the bearing when the bearing is mounted on a valve needle component, and the bearing being stuck when the bearing rotates are avoided, and the friction force when the bearing rotates is reduced, such that the product performance is improved.

HE YUCHEN (CN)
LIU LEQIANG (CN)
CHEN YONGHAO (CN)
XU GUANJUN (CN)

PCT/CN2022/124930

April 27, 2023

October 12, 2022

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ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)

F16K1/04; F16K1/32; F16K1/36

CN216200589U	2022-04-05
CN216200583U	2022-04-05
CN216200585U	2022-04-05
CN210920163U	2020-07-03
CN112178223A	2021-01-05
CN112621164A	2021-04-09
CN102042415A	2011-05-04
JP2001324043A	2001-11-22
CN107366772A	2017-11-21

KANGXIN PARTNERS, P.C. (CN)

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