| 摘要 |
PURPOSE:To inject the liquid (a liquid content) intermittently and automatically in a predetermined amount by controlling a stop valve for injecting the liquid by using a raised pressure of a compressing chamber into which a gas is introduced while controlled. CONSTITUTION:If a lower main body 7 of an injection apparatus is inlaid into an inlaying ring provided to an upper part of an aerosol container 2, the gas in the container 2 is flowed into the compressing chamber 15 while the flow rate thereof is controlled by a restricting member 16 and, when the interior of the compressing chamber 15 is reached to a definite pressure or more, an exhausting member 35 fallen along with a pushed member 33 opens the stop valve 40 to open a communication pore 43 and the liquid in the container 2 is injected from a nozzle 37 through a receiver 38. On the other hand, an exhaust gap 49 is opened by the descent of the pushed member 33 to discharge the gas in the compressing chamber 1 outwardly through a valve body 50 to lower the pressure of the comressing chamber 15 and a pushing member 29 is returned to an original position by a spring 32 to close the stop valve 40 as well as to stop the injection of the liquid. Succeedingly, the gas is flowed into the compressing chamber 15 and above described procedure is repeated to inject the liquid intermittently. Moreover, an injection continuing period of each time can be regulated by operating the valve body 50. |
