Title:
VALVE OPENING COCK EQUIPPED WITH BREAKAGE PREVENTIVE FUNCTION
Document Type and Number:
Japanese Patent JP2023103528
Kind Code:
A
Abstract:
To provide a valve opening cock equipped with a breakage preventive function capable of corresponding a plurality of valves with different limit torque.SOLUTION: An opening cock is equipped with a vertical rod 1, a locking portion 5, a first lateral rod 2, a notifying portion 6 and a torque setting portion 9. The vertical rod 1 vertically extends, and the locking portion 5 is provided at a lower end of the vertical rod 1 and is locked to a shaft body interlocking with a valve shaft of a valve. The first lateral rod 2 horizontally extends, is fixed to the vertical rod 1, rotates around the vertical rod 1 in horizontal direction, and rotates the vertical rod 1 to give torque to the shaft body. The notifying portion 6 is provided at the first lateral rod 2, and notifies user that the torque given to the shaft body by the first lateral rod 2 reaches limit torque corresponding to a nominal diameter of the valve. The torque setting portion 9 is provided at the first lateral rod 2 and sets reference torque corresponding to the limit torque of the nominal diameter of the valve.SELECTED DRAWING: Figure 1
Inventors:
NISHIYAMA MASAHITO
Application Number:
JP2022004074A
Publication Date:
July 27, 2023
Filing Date:
January 14, 2022
Export Citation:
Assignee:
SHIMIZU TEKKOSHO KK
International Classes:
F16K35/00
Attorney, Agent or Firm:
Patent Attorney Corporation Minori Patent Office
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