| 摘要 |
The present invention relates to a fluid injection device of a dual locking structure including an auxiliary cap for suppressing the loosening of a fixing cap formed on a fluid outlet. The fluid injection device comprises a main body in which a flow path and an outlet for discharging the fluid flowed through the flow path are formed; a fixing cap connected to the main body; and an auxiliary cap connected to the main body while maintaining the connection with the fixing cap to control the rotation of the fixing cap connected to the main body. |
