Title:
BALL TYPE FIRE HYDRANT
Document Type and Number:
Japanese Patent JP2018025033
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a ball type fire hydrant that has small fluid resistance with a valve open, and can securely prevent a jet flow from an outflow side in an operation with the valve open while minimizing the number of components and being reduced in overall height.SOLUTION: The ball type fire hydrant has a spherical or hemispherical valve body 1, a valve box 2 which has the valve body 1 accommodated rotatably inside via a stem 3, and is provided to discharge water from an inflow port 20 through an outflow port 21 by rotation of the valve body 1, and a mouthpiece 5 for external hose connection which is provided on the side of the outflow port 21 of the valve box 2. The mouthpiece 5 is connected to the valve box 2, and a jet flow guide part 30 which guides a jet flow generated as the valve body 1 is opened to an inner periphery of the mouthpiece 5 is provided at an inner periphery on the side of the outflow port 21 of the valve box 2. The angle of the jet flow guide part 30 is provided substantially in parallel with an outer peripheral tangent L of the valve body 1 opposed to the jet flow guide part 30.SELECTED DRAWING: Figure 1
Inventors:
KATAGIRI RYUSUKE
Application Number:
JP2016157325A
Publication Date:
February 15, 2018
Filing Date:
August 10, 2016
Export Citation:
Assignee:
SHIMIZU GOKIN SEISAKUSHO KK
International Classes:
E03B9/02; F16K5/06; F16K27/06
Attorney, Agent or Firm:
Tetsuo Kobayashi