The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2022
Filed:
Dec. 25, 2018
Neway Valve (Suzhou) Co., Ltd., Jiangsu, CN;
Other;
Abstract
The present invention discloses an executive system for driving a valve to open and close, comprising a first housing, a linkage block, a first drive rod and a drive mechanism. Wherein, the first housing has a first inner cavity; a medium channel is provided in a side wall of the first housing; an outer peripheral wall of the linkage block is arranged on a wall of the first inner cavity in a slidable and sealed manner, and the linkage block partitions the first inner cavity into an upper cavity and a lower cavity; the medium channel is communicated with the upper cavity; a bottom part of the first drive rod sequentially passes through a top part of the first housing and the linkage block and extends into the lower cavity; a position-limiting part on the bottom part of the first drive rod blocks the linkage block within a region between the position-limiting part and the top part of the first housing; the drive mechanism is provided on top of the first drive rod. The degree of friction between an outer peripheral wall of the linkage block and an inner surface of the first housing is reduced, and the probability of a gap being produced between the peripheral wall of the linkage block and the inner wall of the first housing is reduced, so that the first drive rod can drive the valve stem to move into position, thereby increasing the reliability of the executive system controlling the valve to open and close.