| 摘要 |
The present invention relates to a coupler assembly of a pressure gauge for a hydraulic machine. The present invention comprises: a coupler main body having a pressure gauge installation device of one end and having a working fluid inlet of the other end and having a flow passage connecting the inlet and the installation device and having a valve jaw formed inside the flow passage; a sliding valve body received inside the flow passage to be slid between a blocking position where the sliding valve body is engaged with the valve jaw to block the flow passage and the allowance position where the sliding valve body is spaced from the valve jaw to allow the flow passage to be opened and coming in contact with a pressure gauge to move to the allowance position when the pressure gauge is installed in the installation device; and a compression spring elastically push the valve body to the blocking position. Accordingly, the coupler assembly of a pressure gauge for a hydraulic machine has a simple structure to enable the valve body to be opened and closed in accordance with whether or not the pressure gauge is installed. Therefore, an additional operation is not required to provide an excellent effect. |
